CN205379304U

CN205379304U - Child heart fetal movement monitoring area, child heart fetal movement monitoring devices and system

Info

Publication number: CN205379304U
Application number: CN201620066892.XU
Authority: CN
Inventors: 徐传毅; 赵豪; 王珊
Original assignee: Nazhiyuan Technology Tangshan Co Ltd
Current assignee: Nazhiyuan Technology Tangshan Co Ltd
Priority date: 2016-01-22
Filing date: 2016-01-22
Publication date: 2016-07-13
Anticipated expiration: 2026-01-22

Abstract

The utility model discloses a child heart fetal movement monitoring area, child heart fetal movement monitoring devices and system. Wherein, child heart fetal movement monitoring area includes: the child heart fetal movement monitoring part, potting part spare and fixed part, child heart fetal movement monitoring part includes at least one child heart fetal movement monitor sensor for it is used in vibration convert on the child heart fetal movement monitor sensor for child heart electric output and/or be fetal movement electric output with the foetus at the vibration convert of motion on being used in child heart fetal movement monitor sensor in utero to beat the foetus heart, potting part spare is used for the inside of child heart fetal movement monitoring part sealed coating at potting part spare, fixed part is used for taking cladding in pregnant woman's belly with child heart fetal movement monitoring. The child heart fetal movement monitor sensor that high sensitivity was adopted in this child heart fetal movement monitoring area realizes the monitoring to the child heart and fetal movement signal as child heart fetal movement monitoring part simultaneously, and the misstatement rate is low, nontoxic environmental protection, and safe and reliable, and structure and preparation simple process, low cost is fit for extensive industrial production.

Description

Fetal heart and fetal movement monitoring belt, fetal heart and fetal movement monitoring device and system

Technical Field

The utility model relates to an electronic circuit field, concretely relates to child heart fetal movement monitoring area, child heart fetal movement monitoring devices and system.

Background

Fetal heart and fetal movement are routine means to check whether the fetus is developing normally. Fetal movement is the first objective sign of fetal life, and can be detected at six to eight weeks of gestation, but the pregnant woman can feel fetal movement for the first time only when the pregnant woman is in four and a half months of gestation. The fetal heart is an important organ that supplies oxygen and nutrients to the fetal body, and its activity is governed by the central nerve-brain, in addition to being regulated directly or indirectly by body fluids such as blood movement and hormones. The fetal heart is the heart beat of the fetus, which can be heard with a normal stethoscope on the abdomen, typically at 17-20 weeks. The movement of the fetus in the uterus of the pregnant woman, the fetal movement times, the fast and slow strength, the heartbeat times of the fetus, the fast and slow strength and the like represent the safety risk of the fetus in the mother. For example: fetal movement is often reduced when the placenta is not fully functional or when the fetus has a certain disease.

The pregnant women need to go to a special hospital regularly for physical examination during the whole pregnancy period, and also need to carry out various self-tests occasionally. In various self-checking projects, the measurement of fetal heart and fetal movement of a fetus is an important index for judging vital signs of the fetus, and the fetal heart and fetal movement of the fetus need to be checked every day from the early stage of pregnancy so as to master the growth and development conditions of the fetus at any time. In particular, some elderly, high-risk pregnant women may need to be self-checked many times a day and the self-test results are recorded.

However, because fetal heart and fetal movement signals are weak, the fetal heart and fetal movement signals are easily interfered by bowel sounds, abdominal bleeding sounds and the like of pregnant women, so that the fetal heart detection or fetal movement detection accuracy is low, the error rate is high, meanwhile, the fetal heart and fetal movement monitoring device in the prior art cannot simultaneously detect the fetal heart and fetal movement, and has a single function, so that the prior fetal heart and fetal movement monitoring device cannot meet the current requirements.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an invention purpose is to prior art's defect, provides a child heart child moves monitoring band, child heart child and moves monitoring devices and system for solve the child heart child among the prior art and move monitoring devices and can't realize the detection to child heart and child simultaneously, and detect the high scheduling problem of fault rate.

According to an aspect of the utility model, a child heart fetal movement monitoring area is provided, include: the device comprises a fetal heart and fetal movement monitoring component, a packaging component and a fixing component; wherein,

the fetal heart and fetal movement monitoring component comprises at least one fetal heart and fetal movement monitoring sensor and is used for converting the vibration of the fetal heart beating action applied to the fetal heart and fetal movement monitoring sensor into a fetal heart electrical signal to be output and/or converting the vibration of the fetus moving in the uterus and acting on the fetal heart and fetal movement monitoring sensor into a fetal movement electrical signal to be output;

the packaging component is used for hermetically coating the fetal heart and fetal movement monitoring component in the packaging component;

the fixing component is used for coating the fetal heart and fetal movement monitoring belt on the abdomen of the pregnant woman.

According to the utility model discloses a further aspect, the utility model also provides a child heart fetal movement monitoring devices, including foretell child heart fetal movement monitoring band, still include: and the signal processing and analyzing module is connected with the fetal heart and fetal movement monitoring belt.

According to the utility model discloses a still another aspect, the utility model discloses still provide a child heart fetal movement monitoring system, including foretell child heart fetal movement monitoring band, still include: a terminal device;

the terminal equipment is connected with the fetal heart and fetal movement monitoring component of the fetal heart and fetal movement monitoring belt through a lead and is used for processing and analyzing the fetal heart electrical signals and/or fetal movement electrical signals output by the fetal heart and fetal movement monitoring component, generating fetal heart analysis electrical signals according to the fetal heart electrical signals and/or generating fetal movement analysis electrical signals according to the fetal movement electrical signals and carrying out judgment and analysis.

According to the utility model discloses a still another aspect, the utility model discloses still provide a child heart fetal movement monitoring system, including foretell child heart fetal movement monitoring devices, still include: a terminal device;

the terminal equipment is connected with the signal processing and analyzing module through a wire or in a wireless communication mode and used for judging and analyzing according to the fetal heart analysis electric signal and/or fetal movement analysis electric signal output by the signal processing and analyzing module.

According to the utility model provides a child heart child moves monitoring devices and system, adopts the child heart child of high sensitivity to move monitoring sensors and move monitoring parts as the child heart child, realizes the monitoring to child heart and child movement signal simultaneously, and the misstatement rate is low, nontoxic environmental protection, safe and reliable, and structure and preparation simple process, and low cost are fit for extensive industrial production.

Drawings

Fig. 1 is a schematic structural view of an embodiment of a fetal heart and fetal movement monitoring belt provided by the present invention;

fig. 2 is a schematic structural diagram of a fetal heart and fetal movement monitoring component in an embodiment of the fetal heart and fetal movement monitoring band provided by the present invention;

fig. 3 is a schematic view of another embodiment of the fetal heart and fetal movement monitoring belt according to the present invention;

Fig. 4 is a schematic cross-sectional structure view of a first embodiment of a friction generator selected for use by the fetal heart and fetal movement monitoring sensor of the present invention;

fig. 5 is a schematic cross-sectional structure view of a second embodiment of the friction generator selected for use by the fetal heart and fetal movement monitoring sensor of the present invention;

fig. 6 is a schematic cross-sectional structure view of a third embodiment of a friction generator selected for use by the fetal heart and fetal movement monitoring sensor of the present invention;

fig. 7 is a schematic cross-sectional structure view of a fourth embodiment of a friction generator selected for use by the fetal heart and fetal movement monitoring sensor of the present invention;

fig. 8 is a schematic cross-sectional structure view of a fifth embodiment of a friction generator selected for use by the fetal heart and fetal movement monitoring sensor of the present invention;

fig. 9 is a schematic cross-sectional structure view of a friction generator according to a sixth embodiment of the invention;

fig. 10 is a schematic cross-sectional structure view of a seventh embodiment of a friction generator selected for use in the fetal heart and fetal movement monitoring sensor of the present invention;

fig. 11 is a schematic cross-sectional structure view of an embodiment eight of the friction generator selected for use by the fetal heart and fetal movement monitoring sensor of the present invention;

fig. 12 is a schematic cross-sectional structure view of a friction generator according to a ninth embodiment of the invention, which is selected for use as the fetal heart and fetal movement monitoring sensor;

Fig. 13 is a schematic cross-sectional structure view of a friction generator according to an embodiment ten of the invention;

fig. 14 is a schematic view of a side surface of a first polymer insulating layer of a friction generator selected for use in a fetal heart and fetal movement monitoring sensor according to the present invention;

fig. 15 is a flowchart of a first embodiment of a method for manufacturing a friction generator selected by a fetal heart and fetal movement monitoring sensor according to the present invention;

fig. 16 is a flowchart of a second embodiment of the method for manufacturing a friction generator selected by the fetal heart and fetal movement monitoring sensor according to the present invention;

fig. 17 is a flowchart of a third embodiment of the method for manufacturing a friction generator selected by the fetal heart and fetal movement monitoring sensor of the present invention;

fig. 18 is a schematic cross-sectional structure view of a triboelectric and piezoelectric hybrid generator as a component for monitoring fetal movement of a fetal heart;

fig. 19 is a schematic circuit diagram of a signal processing and analyzing module in an embodiment of the fetal heart and fetal movement monitoring device provided by the present invention;

fig. 20 is a schematic structural diagram of an embodiment of the fetal heart and fetal movement monitoring device provided by the present invention;

fig. 21 is a schematic diagram of another circuit of the signal processing and analyzing module in the embodiment of the fetal heart and fetal movement monitoring device provided by the present invention;

Fig. 22 is a schematic circuit diagram of a signal processing and analyzing module in an embodiment of the fetal heart and fetal movement monitoring device provided by the present invention.

Detailed Description

The present invention will be described in detail with reference to the following embodiments in order to fully understand the objects, features and functions of the present invention, but the present invention is not limited thereto.

Fig. 1 is the utility model provides a structural schematic diagram of an embodiment of child heart fetal movement monitoring area, in this embodiment, child heart fetal movement monitoring area includes: a fetal heart and fetal movement monitoring part 100, a packaging part and a fixing part; the fetal heart and fetal movement monitoring component 100 comprises at least one fetal heart and fetal movement monitoring sensor 110, and is used for converting the vibration of the fetal heart beating action applied to the fetal heart and fetal movement monitoring sensor 110 into a fetal heart electrical signal to be output, and/or converting the vibration of the fetus moving in the uterus and acting on the fetal heart and fetal movement monitoring sensor 110 into a fetal heart electrical signal to be output; the packaging component is used for hermetically wrapping the fetal heart and fetal movement monitoring component 100 inside the packaging component; the fixing component is used for coating the fetal heart and fetal movement monitoring belt on the abdomen of the pregnant woman.

Further, the fetal heart and fetal movement monitoring sensor 110 in the fetal heart and fetal movement monitoring part 100 is a friction generator, wherein, in order to increase the comfort of the pregnant woman in use, a flexible friction generator is preferred; and the number of the fetal heart and fetal movement monitoring sensors 110 may be one or more, that is, the number of the friction generators may be one or more, which is not limited herein, and may be selected by those skilled in the art as needed.

For more accurate and better monitoring of fetal heart and fetal movement signals of the fetus, it is preferable that the fetal heart and fetal movement monitoring component 100 includes a plurality of fetal heart and fetal movement monitoring sensors 110 (i.e., a plurality of friction generators), wherein each of the fetal heart and fetal movement monitoring sensors 110 has an output, and the outputs of the plurality of fetal heart and fetal movement monitoring sensors 110 are connected to the output of the fetal heart and fetal movement monitoring component 100. Specifically, when the fetal heart and fetal movement monitoring component 100 is composed of a plurality of friction generators arranged in M rows and N columns, wherein each friction generator has a first output and a second output; the first output ends of the N friction generators in each row are connected, and M row output ends of the fetal heart and fetal movement monitoring component 100 are led out; the second output ends of the M friction generators in each row are connected to lead out N row output ends of the fetal heart and fetal movement monitoring component 100. Of course, it is also possible to select a reference potential point in the circuit or module connected to fetal heart and fetal movement monitoring unit 100, so that M row outputs of fetal heart and fetal movement monitoring unit 100 or N column outputs of fetal heart and fetal movement monitoring unit 100 are respectively used as the outputs of fetal heart and fetal movement monitoring unit 100, it should be noted that a potential difference must exist between the reference potential point and each row output or each column output, and the reference potential point is preferably a zero potential point.

More specifically, as shown in fig. 2, the fetal heart and fetal movement monitoring component is composed of 12 friction generators (i.e. fetal heart and fetal movement monitoring sensors 110), and is arranged in an array of 3 rows and 4 columns, taking a friction generator with a three-layer structure in the prior art as an example, each friction generator includes a first electrode layer, a first polymer insulating layer and a second electrode layer, which are sequentially stacked from top to bottom, where the first electrode layer is a first output end, and the second electrode layer is a second output end. The first electrode layers (namely the first output ends) of 4 friction generators in each row are mutually connected to obtain a first row output end M1, a second row output end M2 and a third row output end M3, meanwhile, the second electrode layers (namely the second output ends) of 3 friction generators in each column are mutually connected to obtain a first column output end N1, a second column output end N2, a third column output end N3 and a fourth column output end N4, and the output ends are connected with corresponding circuits or modules, when vibration and/or tiny vibration generated by heartbeat (namely fetal heart) of a fetus and/or movement (namely fetal movement) of the fetus in a pregnant woman acts on the friction generators, the corresponding ports can output fetal heart electrical signals and/or fetal movement electrical signals, so that the position of the heartbeat and/or fetal movement is determined. For example: when two ports correspondingly connected with the M1 and the N2 monitor corresponding fetal movement electric signals, the fact that the friction generator in the 1 st row and the 2 nd column is a pregnant woman abdominal wall deformation position (namely a fetal movement position) is indicated; when two ports correspondingly connected with the M3 and the N4 monitor corresponding fetal movement electrical signals, it indicates that the friction generator in row 3 and column 4 is a deformation position (i.e., a fetal movement position) of the abdominal wall of the pregnant woman, and so on, and details are not repeated here.

It should be noted that the heart of the fetus is beating, i.e. the fetal heart, and the movement of the fetus in the uterus, i.e. the fetal movement, because the position of the fetal heart and the fetal movement, the vibration amplitude and the vibration frequency are different, and by converting the vibration of the fetal heart and/or the fetal movement acting on the fetal heart and fetal movement monitoring sensor 110, the corresponding fetal heart electrical signal and/or fetal movement electrical signal can be obtained and output through the fetal heart and fetal movement monitoring component 100.

As shown in fig. 1, the encapsulation includes a first encapsulation 210 and a second encapsulation 220, the first encapsulation 210 and the second encapsulation 220 are sealed at their edges to form a sealed cavity, and the fetal movement monitoring component 100 is disposed in the sealed cavity and hermetically covers the fetal movement monitoring component 100.

Optionally, the fetal heart and fetal movement monitoring band further comprises: and an insulating protection member located inside the encapsulation member. As shown in fig. 1, the insulation protection component includes an upper insulation protection layer 410 and a lower insulation protection layer 420, the edges of the upper insulation protection layer 410 and the lower insulation protection layer 420 are sealed to form a sealed cavity, and the fetal heart and fetal movement monitoring component 100 is disposed in the sealed cavity for sealing and protecting the fetal heart and fetal movement monitoring component 100. The setting of insulation protection part not only can reduce the wearing and tearing to child heart child moves monitoring part 100, also can avoid external environment (like humidity, dust) to the influence of child heart child moves monitoring part 100, improves the job stabilization nature and the reliability of child heart child moves monitoring part 100.

Further, the encapsulation part may be a conductive encapsulation part or an insulating encapsulation part. When the packaging component is a conductive packaging component, the packaging component not only plays a role in sealing and protecting an internal structure, but also plays a role in radiation protection and shielding, and preferably adopts metal fiber cloth; when the encapsulating member is an insulating encapsulating member, the fetal heart and fetal movement monitoring band further includes: and the shielding component is arranged outside the insulating protection component and integrally covers the insulating protection component. The shielding component is preferably made of flexible materials such as conductive cloth and metal fiber cloth, and is used for preventing external electromagnetic interference and playing a role in radiation protection and shielding. It should be noted that when the above-mentioned packaging component is a conductive packaging material or an insulating packaging material, an insulating protection component must be provided, and the insulating protection component is provided to prevent the output end of the fetal movement monitoring sensor (i.e. the first electrode layer or the second electrode layer of the friction generator) from being conducted with the packaging component or the shielding component which plays a role of radiation protection and shielding.

The fixing component comprises a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion are arranged on the outer surface of the packaging component, the first connecting portion and the second connecting portion are respectively located on two sides of the fetal heart fetal movement monitoring belt, and the fetal heart fetal movement monitoring belt is wrapped on the abdomen of a pregnant woman through mutual adhesion or buckling of the first connecting portion and the second connecting portion. Specifically, as shown in fig. 1, the first connecting portion 310 is disposed at one end of the outer surface of the first packaging portion 210, and the second connecting portion 320 is disposed at one end of the outer surface of the second packaging portion 220, that is, the first connecting portion 210 and the second connecting portion 220 are respectively disposed on the outer surfaces of two sides of the fetal heart-fetal movement monitoring belt, so that when a pregnant woman wears the fetal heart-fetal movement monitoring belt, the fetal heart-fetal movement monitoring belt can be wrapped on the abdomen of the pregnant woman through mutual adhesion or buckling of the first connecting portion 310 and the second connecting portion 320.

In another embodiment, the fixing member may be configured as shown in fig. 3, wherein the fixing member includes a first fixing band 330 and a second fixing band 340, the first fixing band 330 and the second fixing band 340 are respectively provided with a connecting portion, and the fetal heart monitoring band is wrapped on the abdomen of the pregnant woman by bonding or fastening the connecting portions. The first fixing belt 330 and the second fixing belt 340 fix the fetal heart and fetal movement monitoring belt on the abdomen of the pregnant woman, and the second fixing belt 340 also plays a supporting role on the abdomen of the pregnant woman, so that the pressure born by the pregnant woman is relieved.

In addition, the fetal electrocardiosignals are generated by applying vibration and/or micro-vibration generated by the heartbeat of the fetus to the friction generator, and the fetal electrocardiosignals are generated by applying vibration and/or micro-vibration generated by the intrauterine movement of the fetus to the friction generator, so that the fetal electrocardiosignals and the fetal electrocardiosignals can be distinguished according to the characteristics of the fetal electrocardiosignals and the fetal electrocardiosignals, such as the magnitude, the frequency and the like of the signals.

The utility model provides a child heart fetal movement monitoring belt, owing to adopt the friction generator of high sensitivity as child heart fetal movement monitoring sensor, not only can realize the monitoring to child heart and fetal movement signal simultaneously, the false alarm rate is low, and is nontoxic environmental protection, safe and reliable; the structure and the manufacturing process are simple, the cost is low, and the method is suitable for large-scale industrial production; the fetal heart and fetal movement monitoring belt is light in weight and is more comfortable for pregnant women to use due to the fact that the light and flexible friction generator is used as the fetal heart and fetal movement monitoring sensor; this child heart child moves monitoring band simultaneously through set up insulation protection part and encapsulation part in self structure, this not only has reduced the wearing and tearing to child heart child moves monitoring band, also can avoid external environment (like humidity, dust) to the influence in child heart child moves monitoring band, improves the job stabilization nature and the reliability in child heart child moves monitoring band, still plays the effect of protecting against radiation and shielding simultaneously, has prolonged child heart child moves monitoring band life.

The utility model provides a child heart fetal movement monitoring zone can adopt current three layer construction, four layer structure, five layers of intermediate film structures or five layers of intermediate electrode structure friction generator, also can adopt the utility model provides a friction generator who has following improvement structure specifically refers to 4-14 and carries out the detailed description.

Fig. 4 is a schematic cross-sectional structure diagram of a first embodiment of the friction generator selected for use by the fetal heart monitoring sensor, specifically, fig. 4 shows a cross-sectional view of each layer structure inside the friction generator. As shown in fig. 4, the first triboelectric generation layer is specifically a first high molecular polymer insulating layer 11 with a first electrode 10 disposed on one side surface, and the second triboelectric generation layer is specifically a second high molecular polymer insulating layer 12; a first high molecular polymer insulating layer 11 and a second high molecular polymer insulating layer 12, one side surface of which is provided with a first electrode 10, are laminated together, and a friction interface is formed between the side surface of the first high molecular polymer insulating layer 11, which is not provided with the first electrode 10, and the second high molecular polymer insulating layer 12; the insulating layer 13 completely covers the first electrode 10, the first high molecular polymer insulating layer 11 and the second high molecular polymer insulating layer 12; the conductive shielding layer 14 completely covers the outer side surface of the insulating layer 13, that is, the conductive shielding layer 14 completely covers the first electrode 10, the first high molecular polymer insulating layer 11, the second high molecular polymer insulating layer 12 and the insulating layer 13; the protective layer 15 completely covers the outer side surface of the conductive shielding layer 14, that is, the protective layer 15 completely covers the first electrode 10, the first high molecular polymer insulating layer 11, the second high molecular polymer insulating layer 12, the insulating layer 13 and the conductive shielding layer 14; the first electrode 10 is connected with a first extraction electrode 16, the conductive shielding layer 14 is connected with a second extraction electrode 17, and the first extraction electrode 16 and the second extraction electrode 17 are output electrodes of the friction generator. The friction generator shown in fig. 4 is a full pack structure.

The insulating layer 13 is specifically an insulating tape with a single-sided tape or a double-sided tape, such as polyethylene terephthalate (PET), thermoplastic polyurethane elastomer rubber (TPU), polyvinyl chloride (PVC), polypropylene (PP), Polyethylene (PE), Polytetrafluoroethylene (PTFE), silica gel, polyvinyl alcohol (PVA), and Polyamide (PA) tape, and the insulating tape completely covers the first electrode 10, the first polymer insulating layer 11, and the second polymer insulating layer 12 to form a closed structure, i.e., a fully-wrapped structure. The insulating layer 13 wraps the first electrode 10, the first high polymer insulating layer 11 and the second high polymer insulating layer 12, so that on one hand, the waterproof and moistureproof effects are achieved, and the process of performing moistureproof treatment on the surface of the outermost layer is omitted; on the other hand, the packaging problem of the friction generator structure formed by the first electrode 10, the first high polymer insulating layer 11 and the second high polymer insulating layer 12 is solved, and the influence of external environmental factors on the friction power generation of the first high polymer insulating layer 11 and the second high polymer insulating layer 12 is avoided.

The conductive shielding layer 14 is specifically a conductive adhesive tape with or without adhesive on a single surface, and the conductive shielding layer 14 completely covers the outer surface of the insulating layer 13. If the insulating layer 13 is an insulating tape with glue on one side, the conductive shielding layer 14 is a conductive tape with glue on one side, specifically, the first electrode 10, the first high molecular polymer insulating layer 11 and the second high molecular polymer insulating layer 12 are adhered to the glued surface of the insulating layer 13, and the glued surface of the conductive shielding layer 14 is adhered to the outer side surface of the insulating layer 13; if the insulating layer 13 is a double-sided adhesive tape, the conductive shielding layer 14 is a non-adhesive tape, specifically, the first electrode 10, the first polymer insulating layer 11 and the second polymer insulating layer 12 are adhered to a first side adhesive surface of the insulating layer 13 (i.e., an inner side surface of the insulating layer 13), and the conductive shielding layer 14 is adhered to a second side adhesive surface of the insulating layer 13 (i.e., an outer side surface of the insulating layer 13).

The protective layer 15 may be a fabric layer, a plastic layer or a plastic film, such as a light and thin plastic. The protective layer 15 not only protects the internal structure (i.e. the first electrode 10, the first high molecular polymer insulating layer 11, the second high molecular polymer insulating layer 12, the insulating layer 13 and the conductive shielding layer 14), so as to prevent external environmental factors from affecting the normal operation of the internal structure, but also ensure the cleanness of the internal structure, and meanwhile, the friction generator can be fixed on a mattress as required. The protective layer 15 is preferably of a detachable construction, which facilitates cleaning and ensures the cleanliness and hygiene of the friction generator. Of course, the friction generator may not be provided with the protective layer 15.

In this embodiment, the first electrode 10 is specifically a conductive tape with a single surface adhesive, and is adhered to the first polymer insulating layer 11 through the adhesive surface of the first electrode 10. In addition, the first electrode 10 may also be formed by directly disposing an electrode material, such as indium tin oxide, graphene, silver nanowire film, metal or alloy, on the first polymer insulating layer 11 by a coating or sputtering process, which is not limited herein.

First electrode 10 is connected first extraction electrode 16 through riveted mode, the utility model discloses do not do the restriction to the rivet kind, can customize the rivet kind according to customer's needs. Specifically, one end of the first extraction electrode 16 is directly riveted to the conductive tape as the first electrode 10. The conductive shield layer 14 is also connected to the second extraction electrode 17 by riveting, again without limitation to the type of rivet. Specifically, one end of the second extraction electrode 17 is directly riveted to the conductive adhesive tape as the conductive shield layer 14.

In this embodiment, the second extraction electrode 17 is a ground electrode, i.e., the conductive shielding layer 14 is grounded. When the friction generator is subjected to pressure, for example, heartbeat of a fetus and/or vibration and/or micro-vibration generated by movement of the fetus in a womb of a pregnant woman act on the friction generator, pressure generated by different actions can generate friction of different degrees between the first high polymer insulating layer 11 and the second high polymer insulating layer 12, so that the first electrode 10 induces corresponding charges, and since the conductive shielding layer 14 is grounded to zero potential, potential differences of different degrees exist between the first electrode 10 and the conductive shielding layer 14, and therefore, fetal electrocardiosignals and/or fetal movement signals of different strengths are output between the first leading-out electrode 16 and the second leading-out electrode 17 serving as output ends of the friction generator. In this manner, the second lead electrode 17 is grounded (i.e., the conductive shield layer 14 is grounded), so that the conductive shield layer 14 is used not only as one output electrode of the friction generator but also as a shield layer, and the shielding effect is further improved after the conductive shield layer is grounded.

Because the utility model provides a friction generator is based on friction generator's principle, the flexible film material that adopts the cutting of being convenient for is made, so it has the self-power, sensitivity is high, the output signal of telecommunication is stable, use easy operation, the size is adjustable wantonly, the quality is light, user uses comfortable convenience, and structure and preparation simple process, therefore, the carrier wave prepaid electric energy meter is low in cost, be fit for the characteristics of extensive industrial production, this friction generator is through setting up insulating layer and electrically conductive shielding layer in self structure simultaneously, realized from dampproofing and from shielded function, this has not only increased the stability of its output signal of telecommunication, and the service life has still been prolonged simultaneously.

Fig. 5 is a schematic cross-sectional structure diagram of a second embodiment of the friction generator selected for use by the fetal heart monitoring sensor, specifically, fig. 5 shows a cross-sectional view of each layer structure inside the friction generator. As shown in fig. 5, the structure of the friction generator of the present embodiment is different from that of fig. 4 in that the friction generator structure of which the inner surface is not completely covered by the insulating layer 18, that is, the friction generator structure formed by not completely covering the first electrode 10, the first high polymer insulating layer 11 and the second high polymer insulating layer 12, is a half-wrapped structure. Specifically, the insulating layer 18 completely covers the first electrode 10 and the first high molecular polymer insulating layer 11, and partially covers the second high molecular polymer insulating layer 12, so that a partial region of the second high molecular polymer insulating layer 12 is in contact with the conductive shielding layer 14.

The insulating layer 18 is specifically an insulating tape with a single-sided tape or a double-sided tape, such as a polyethylene terephthalate tape, i.e., a PET tape, and the insulating tape completely covers the first electrode 10 and the first polymer insulating layer 11, and partially covers the second polymer insulating layer 12, so that a partial region of the second polymer insulating layer 12 is in contact with the conductive shielding layer 14.

The conductive shielding layer 14 is specifically a conductive adhesive tape with a single surface adhesive, and the conductive shielding layer 14 completely covers the outer side surface of the insulating layer 18 and is in contact with a partial area of the second high polymer insulating layer 12. When the insulating layer 18 is an insulating tape with a single-sided tape, the first electrode 10 and the first high molecular polymer insulating layer 11 are adhered to the tape surface of the insulating layer 18, and the second high molecular polymer insulating layer 12 is partially adhered to the tape surface of the insulating layer 18, and the outer side surface of the insulating layer 18 and the partial area of the second high molecular polymer insulating layer 12, which is not covered by the insulating layer 18, are adhered to the tape surface of the conductive shielding layer 14 to form a sealing structure; when the insulating layer 18 is a double-sided adhesive tape, specifically, the first electrode 10 and the first polymer insulating layer 11 are adhered to a first side adhesive tape surface of the insulating layer 18 (i.e., an inner side surface of the insulating layer 18), and the second polymer insulating layer 12 is partially adhered to the first side adhesive tape surface, the adhesive tape surface of the conductive shielding layer 14 is adhered to a second side adhesive tape surface of the insulating layer 18 (i.e., an outer side surface of the insulating layer 18) and a partial region of the second polymer insulating layer 12, which is not covered by the insulating layer 18, to form a sealing structure.

The sealing structure formed by the second high molecular polymer insulating layer 12, the insulating layer 18 and the conductive shielding layer 14 plays a role in water resistance and moisture resistance, and a process of performing moisture-proof treatment on the surface of the outermost layer is omitted; on the other hand, the packaging problem of the friction generator structure formed by the first electrode 10, the first high polymer insulating layer 11 and the second high polymer insulating layer 12 is solved, and the influence of external environmental factors on the friction power generation of the first high polymer insulating layer 11 and the second high polymer insulating layer 12 is avoided.

In addition to the above differences, the specific arrangement of the structures of the other layers in this embodiment can be referred to the description of the first embodiment of the friction generator in fig. 4, and will not be described herein again.

Fig. 6 is a schematic cross-sectional structure diagram of a third embodiment of the friction generator selected for use by the fetal heart monitoring sensor, specifically, fig. 6 shows a cross-sectional view of each layer structure inside the friction generator. As shown in fig. 6, the friction generator of the present embodiment is different from fig. 4 in that the second friction generating layer is specifically the second electrode layer 22; the first polymer insulating layer 11 having the first electrode 10 disposed on one surface thereof and the second electrode layer 22 are stacked together, and a frictional interface is formed between the second electrode layer 22 and the surface of the first polymer insulating layer 11 not having the first electrode 10 disposed thereon. The friction generator shown in fig. 6 is also a full pack structure.

In fig. 6, the first extraction electrode 16 is connected to the first electrode 10, and the second extraction electrode 17 is connected to the conductive shield layer 14. The embodiment is not limited to this connection manner, and may also be: the first extraction electrode is connected with the first electrode, and the second extraction electrode is connected with the second electrode layer; or the first extraction electrode is connected with the second electrode layer, and the second extraction electrode is connected with the conductive shielding layer. When the second extraction electrode is connected with the conductive shielding layer, the second extraction electrode is grounded. The first lead-out electrode and the second lead-out electrode are connected with the corresponding layer structures in a riveting mode.

When the friction generator in this embodiment is subjected to pressure, for example, heartbeat of a fetus and/or vibration and/or micro-vibration generated by movement of the fetus in a womb of a pregnant woman act on the friction generator, pressure generated by different actions can generate friction of different degrees between the first high molecular polymer insulating layer and the second electrode layer, so that corresponding charges are respectively induced by the first electrode and the second electrode layer, and due to different materials of the first high molecular polymer insulating layer and the second electrode layer, different degrees of potential differences are generated between the first electrode and the second electrode layer, and when the conductive shielding layer is grounded to zero potential, different degrees of potential differences are also generated between the first electrode and the conductive shielding layer, and between the second electrode layer and the conductive shielding layer, so that fetal electrocardiosignals and/or fetal movement electricity signals of different strengths are output between the first leading-out electrode and the second leading-out electrode connected to each layer by using the above connection method A signal.

In this embodiment, the second high polymer insulating layer in the first embodiment of the friction generator of fig. 4 is replaced with the second electrode layer, except for the above differences, the specific settings of the structures of the other layers in this embodiment can be referred to the description of the first embodiment of the friction generator of fig. 4, and are not described again here.

Fig. 7 is a schematic cross-sectional structure diagram of a fourth embodiment of the friction generator selected for use by the fetal heart monitoring sensor, specifically, fig. 7 shows a cross-sectional view of each layer structure inside the friction generator. As shown in fig. 7, the friction generator of the present embodiment is different from fig. 5 in that the second friction generating layer is specifically the second electrode layer 22; the first high molecular polymer insulating layer 11 with one side surface provided with the first electrode 10 and the second electrode layer 22 are laminated together, and a friction interface is formed between the side surface of the first high molecular polymer insulating layer 11 without the first electrode 10 and the second electrode layer 22; the insulating layer 18 completely covers the first electrode 10 and the first high molecular polymer insulating layer 11, and partially covers the second electrode layer 22, so that a partial region of the second electrode layer 22 is in contact with the conductive shielding layer 14. The friction generator shown in fig. 7 is a half-pack structure.

In fig. 7, the first extraction electrode 16 is connected to the first electrode 10, and the second extraction electrode 17 is connected to the conductive shield layer 14. Since a partial region of the second electrode layer 22 is in contact with the conductive-shield layer 14, the second extraction electrode may also be connected to the second electrode layer. The first lead-out electrode and the second lead-out electrode are connected with the corresponding layer structures in a riveting mode. The first leading-out electrode can be directly riveted on the conductive adhesive tape serving as the first electrode, and the second leading-out electrode can be riveted on the conductive adhesive tape serving as the conductive shielding layer or the conductive adhesive tape serving as the second electrode layer or a composite layer formed by the conductive shielding layer and the second electrode layer after being pasted.

When the friction generator in this embodiment is subjected to a pressure, for example, the heartbeat of a fetus and/or vibrations and/or minute vibrations generated by the fetus moving in the womb of a pregnant woman act on the friction generator, the pressures generated by different actions can generate different degrees of friction between the first polymer insulating layer and the second electrode layer, so that the first electrode layer and the second electrode layer respectively induce corresponding charges, and because the first high molecular polymer insulating layer and the second electrode layer are made of different materials, thereby generating different degrees of potential difference between the first electrode and the second electrode layer, and at the same time, because the partial area of the second electrode layer is contacted with the conductive shielding layer, the potential difference of different degrees also exists between the first electrode and the conductive shielding layer, therefore, fetal heart electrical signals and/or fetal movement electrical signals with different intensities are output between the first extraction electrode and the second extraction electrode which are connected with each layer in the connection mode.

In this embodiment, the second high polymer insulating layer in the second embodiment of the friction generator in fig. 5 is replaced with the second electrode layer, except for the above differences, the specific settings of the structures of the other layers in this embodiment can be referred to the description of the second embodiment of the friction generator in fig. 5, and are not described again here.

Fig. 8 is a schematic cross-sectional structure diagram of a fifth embodiment of the friction generator selected for use by the fetal heart monitoring sensor, specifically, fig. 8 shows a cross-sectional view of each layer structure inside the friction generator. As shown in fig. 8, the friction generator of the present embodiment is different from fig. 4 in that the second friction generating layer is specifically a second high molecular polymer insulating layer 33 having a second electrode 32 provided on one side surface; the first polymer insulating layer 11 having the first electrode 10 on one surface and the second polymer insulating layer 33 having the second electrode 32 on one surface are stacked together, and a frictional interface is formed between the surface of the first polymer insulating layer 11 not having the first electrode 10 and the surface of the second polymer insulating layer 33 not having the second electrode 32. The friction generator shown in fig. 8 is a full pack structure.

In fig. 8, the first extraction electrode 16 is connected to the first electrode 10, and the second extraction electrode 17 is connected to the conductive shield layer 14. The embodiment is not limited to this connection manner, and may also be: the first extraction electrode is connected with the first electrode, and the second extraction electrode is connected with the second electrode; or the first extraction electrode is connected with the second electrode, and the second extraction electrode is connected with the conductive shielding layer. When the second extraction electrode is connected with the conductive shielding layer, the second extraction electrode is grounded. The first lead-out electrode and the second lead-out electrode are connected with the corresponding layer structures in a riveting mode.

When the friction generator in this embodiment is subjected to pressure, for example, heartbeat of a fetus and/or vibration and/or micro-vibration generated by movement of the fetus in a womb of a pregnant woman act on the friction generator, pressure generated by different actions can generate friction of different degrees between the first high molecular polymer insulating layer and the second high molecular polymer insulating layer, so that the first electrode and the second electrode respectively induce corresponding charges, and due to different materials used for the first high molecular polymer insulating layer and the second high molecular polymer insulating layer, potential differences of different degrees can be generated between the first electrode and the second electrode, and when the conductive shielding layer is grounded to zero potential, potential differences of different degrees can be generated between the first electrode and the conductive shielding layer and between the second electrode and the conductive shielding layer, so that fetal heart telecommunication of different strengths is output between the first leading-out electrode and the second leading-out electrode connected to each layer by using the above-mentioned connection method Sign and/or fetal activity electrical signals.

In this embodiment, the second polymer insulating layer in the first embodiment of the friction generator in fig. 4 is replaced with a second polymer insulating layer having a second electrode on one side surface, except for the above differences, specific settings of other layer structures in this embodiment can be referred to the description of the first embodiment of the friction generator in fig. 4, and are not described again here.

Fig. 9 is a schematic cross-sectional structure diagram of a sixth embodiment of the friction generator selected for use by the fetal heart monitoring sensor, specifically, fig. 9 shows a cross-sectional view of each layer structure inside the friction generator. As shown in fig. 9, the friction generator of the present embodiment is different from fig. 5 in that the second friction generating layer is specifically a second high molecular polymer insulating layer 33 having a second electrode 32 provided on one side surface; a first high molecular polymer insulating layer 11 with a first electrode 10 arranged on one side surface and a second high molecular polymer insulating layer 33 with a second electrode 32 arranged on one side surface are stacked together, and a friction interface is formed between the side surface of the first high molecular polymer insulating layer 11 without the first electrode 10 and the side surface of the second high molecular polymer insulating layer 33 without the second electrode 32; the insulating layer 18 completely covers the first electrode 10, the first high molecular polymer insulating layer 11 and the second high molecular polymer insulating layer 33, and partially covers the second electrode 32, so that a partial region of the second electrode 32 is in contact with the conductive shielding layer 14. The friction generator shown in fig. 9 is a half-pack structure.

In fig. 9, the first extraction electrode 16 is connected to the first electrode 10, and the second extraction electrode 17 is connected to the conductive shield layer 14. Since a partial region of the second electrode 32 is in contact with the conductive-shield layer 14, the second extraction electrode may also be connected to the second electrode. The first lead-out electrode and the second lead-out electrode are connected with the corresponding layer structures in a riveting mode. The first leading-out electrode can be directly riveted on the conductive adhesive tape as the first electrode, and the second leading-out electrode can be riveted on the conductive adhesive tape as the conductive shielding layer or the second electrode of the second high polymer insulating layer or a composite layer formed by the second electrode and the conductive shielding layer after being pasted.

When the friction generator in this embodiment is subjected to pressure, for example, the heartbeat of a fetus and/or vibration and/or micro-vibration generated by the fetus moving in the womb of a pregnant woman act on the friction generator, pressure generated by different actions can generate friction of different degrees between the first high molecular polymer insulating layer and the second high molecular polymer insulating layer, so that the first electrode and the second electrode respectively induce corresponding charges, and due to different materials used for the first high molecular polymer insulating layer and the second high molecular polymer insulating layer, potential differences of different degrees are generated between the first electrode and the second electrode, and meanwhile, due to the fact that a partial region of the second electrode is in contact with the conductive shielding layer, potential differences of different degrees are also generated between the first electrode and the conductive shielding layer, so that fetal electrocardiosignals and/or fetal electrocardiosignals of different strengths are output between the first leading-out electrode and the second leading-out electrode connected with each layer by using the above connection method Fetal movement electrical signals.

In this embodiment, the second high polymer insulating layer in the second embodiment of the friction generator in fig. 5 is replaced with a second high polymer insulating layer having a second electrode on one side surface, except for the above differences, specific settings of other layer structures in this embodiment can be referred to the description of the second embodiment of the friction generator in fig. 5, and are not described again here.

Fig. 10 is a schematic cross-sectional structure diagram of a seventh embodiment of the friction generator selected for use by the fetal heart monitoring sensor of the present invention, specifically, fig. 10 shows a cross-sectional view of each layered structure inside the friction generator. As shown in fig. 10, the friction generator of the present embodiment differs from fig. 4 in that the second friction generating layer includes, in addition to the second high polymer insulating layer 12: an intermediate electrode layer 40; a first high molecular polymer insulating layer 11, an intermediate electrode layer 40 and a second high molecular polymer insulating layer 12, one side surface of which is provided with a first electrode 10, are laminated together; a frictional interface is formed between the surface of the first polymer insulating layer 11 on the side where the first electrode 10 is not provided and the intermediate electrode layer 40 and/or between the second polymer insulating layer 12 and the intermediate electrode layer 40. The friction generator shown in fig. 10 is a full pack structure.

In fig. 10, the first extraction electrode 16 is connected to the first electrode 10, and the second extraction electrode 17 is connected to the conductive shield layer 14. The embodiment is not limited to this connection manner, and may also be: the first extraction electrode is connected with the intermediate electrode layer, and the second extraction electrode is connected with the conductive shielding layer; alternatively, the first extraction electrode is connected to the first electrode, and the second extraction electrode is connected to the intermediate electrode layer. When the second extraction electrode is connected with the conductive shielding layer, the second extraction electrode is grounded. The first lead-out electrode and the second lead-out electrode are connected with the corresponding layer structures in a riveting mode.

When the friction generator in this embodiment is under pressure, for example, the heartbeat of a fetus and/or the vibration and/or the micro-vibration generated by the fetus moving in the womb of a pregnant woman act on the friction generator, the pressure generated by different actions can generate different degrees of friction between the first high molecular polymer insulating layer and the intermediate electrode layer and/or between the second high molecular polymer insulating layer and the intermediate electrode layer, so that the first electrode and the intermediate electrode layer respectively induce corresponding charges, and due to the different materials used for the first high molecular polymer insulating layer, the second high molecular polymer insulating layer and the intermediate electrode layer, different degrees of potential differences are generated between the first electrode and the intermediate electrode layer, and when the conductive shielding layer is grounded to zero potential, different degrees of potential differences also exist between the first electrode and the conductive shielding layer, and between the intermediate electrode layer and the conductive shielding layer, therefore, fetal heart electrical signals and/or fetal movement electrical signals with different intensities are output between the first extraction electrode and the second extraction electrode which are connected with each layer in the connection mode.

In this embodiment, the second polymer insulating layer in the first embodiment of the friction generator of fig. 4 is replaced by the stacked intermediate electrode layer and the second polymer insulating layer, except for the above differences, specific settings of other layer structures in this embodiment can be referred to the description of the first embodiment of the friction generator of fig. 4, and are not described again here.

Fig. 11 is a schematic cross-sectional structure diagram of an eighth embodiment of the friction generator selected for use by the fetal heart monitoring sensor, specifically, fig. 11 shows a cross-sectional view of each layer structure inside the friction generator. As shown in fig. 11, the friction generator of the present embodiment is different from fig. 5 in that the second friction generating layer includes, in addition to the second high polymer insulating layer 12: an intermediate electrode layer 40; a first high molecular polymer insulating layer 11, an intermediate electrode layer 40 and a second high molecular polymer insulating layer 12, one side surface of which is provided with a first electrode 10, are laminated together; a friction interface is formed between the surface of the first polymer insulating layer 11, on the side not provided with the first electrode 10, and the intermediate electrode layer 40 and/or between the second polymer insulating layer 12 and the intermediate electrode layer 40; the insulating layer 18 completely covers the first electrode 10, the first polymer insulating layer 11 and the intermediate electrode layer 40, and partially covers the second polymer insulating layer 12, so that a partial region of the second polymer insulating layer 12 is in contact with the conductive shielding layer 14. The friction generator shown in fig. 11 is a half-pack structure.

In fig. 11, the second polymer insulating layer 12 is in contact with the conductive shielding layer 14, the first extraction electrode 16 is connected to the first electrode 10, and the second extraction electrode 17 is connected to the conductive shielding layer 14. The embodiment is not limited to this connection manner, and may also be: the first extraction electrode is connected with the intermediate electrode layer, and the second extraction electrode is connected with the conductive shielding layer; alternatively, the first extraction electrode is connected to the first electrode, and the second extraction electrode is connected to the intermediate electrode layer. When the second extraction electrode is connected with the conductive shielding layer, the second extraction electrode is grounded. The first lead-out electrode and the second lead-out electrode are connected with the corresponding layer structures in a riveting mode.

In this embodiment, the second high polymer insulating layer in the second embodiment of the friction generator of fig. 5 is replaced by the stacked intermediate electrode layer and the second high polymer insulating layer, except for the above differences, specific settings of other layer structures in this embodiment may be referred to in the description of the second embodiment of the friction generator of fig. 5, and are not described again here.

Fig. 12 is a schematic cross-sectional structure diagram of a friction generator according to the embodiment nine of the present invention, specifically, fig. 12 shows a cross-sectional view of each layer structure inside the friction generator. As shown in fig. 12, the friction generator of the present embodiment differs from fig. 4 in that the second friction generating layer includes an intermediate electrode layer 40 and a second high molecular polymer insulating layer 42 having a second electrode 41 provided on one side surface; a first high molecular polymer insulating layer 11 having a first electrode 10 on one surface thereof, an intermediate electrode layer 40, and a second high molecular polymer insulating layer 42 having a second electrode 41 on one surface thereof are sequentially laminated together; a rubbing interface is formed between the surface of the first high molecular polymer insulating layer 11 on the side where the first electrode 10 is not provided and the intermediate electrode layer 40 and/or between the surface of the second high molecular polymer insulating layer 42 on the side where the second electrode 41 is not provided and the intermediate electrode layer 40. The friction generator shown in fig. 12 is a full pack structure.

In fig. 12, the first extraction electrode 16 is connected to the first electrode 10, and the second extraction electrode 17 is connected to the conductive shield layer 14. The embodiment is not limited to this connection manner, and may also be: the first extraction electrode is connected with the first electrode, and the second extraction electrode is connected with the intermediate electrode layer or the second electrode; or the first extraction electrode is connected with the intermediate electrode layer, and the second extraction electrode is connected with the second electrode; alternatively, the first extraction electrode is connected to the intermediate electrode layer or the second electrode, and the second extraction electrode is connected to the conductive shield layer. When the second extraction electrode is connected with the conductive shielding layer, the second extraction electrode is grounded. The first lead-out electrode and the second lead-out electrode are connected with the corresponding layer structures in a riveting mode.

When the friction generator in this embodiment is subjected to pressure, for example, the heartbeat of a fetus and/or vibration and/or micro-vibration generated by the fetus moving in the womb of a pregnant woman act on the friction generator, the pressure generated by different actions can generate friction of different degrees between the first high molecular polymer insulating layer and the intermediate electrode layer and/or between the second high molecular polymer insulating layer and the intermediate electrode layer, so that the first electrode, the intermediate electrode layer and the second electrode respectively induce corresponding charges, and due to the different materials used for the first high molecular polymer insulating layer, the second high molecular polymer insulating layer and the intermediate electrode layer, further, different degrees of potential differences are generated between the first electrode and the intermediate electrode layer, between the second electrode and the intermediate electrode layer, and between the first electrode and the second electrode, and when the conductive shielding layer is grounded to zero potential, therefore, the fetal electrocardiosignals and/or fetal movement signals with different strengths are output between the first extraction electrode and the second extraction electrode which are connected with each layer by adopting the connection mode.

In this embodiment, the second polymer insulating layer in the first embodiment of the friction generator of fig. 4 is replaced by the stacked intermediate electrode layer and the second polymer insulating layer having the second electrode on one side surface, except for the above differences, the specific arrangement of the structures of the other layers in this embodiment can be referred to the description of the first embodiment of the friction generator of fig. 4, and will not be described again here.

Fig. 13 is a schematic cross-sectional structure diagram of a friction generator according to the present invention, specifically, fig. 13 shows a cross-sectional view of each layer structure inside the friction generator. As shown in fig. 13, the friction generator of the present embodiment differs from fig. 5 in that the second friction generating layer includes an intermediate electrode layer 40 and a second high molecular polymer insulating layer 42 having a second electrode 41 provided on one side surface; a first high molecular polymer insulating layer 11 having a first electrode 10 on one surface thereof, an intermediate electrode layer 40, and a second high molecular polymer insulating layer 42 having a second electrode 41 on one surface thereof are sequentially laminated together; a frictional interface is formed between the surface of the first high molecular polymer insulating layer 11 on the side where the first electrode 10 is not disposed and the intermediate electrode layer 40 and/or between the surface of the second high molecular polymer insulating layer 42 on the side where the second electrode 41 is not disposed and the intermediate electrode layer 40; the insulating layer 18 completely covers the first electrode 10, the first high molecular polymer insulating layer 11, the intermediate electrode layer 40 and the second high molecular polymer insulating layer 42, and partially covers the second electrode 41, so that a partial region of the second electrode 41 is in contact with the conductive shielding layer 14. The friction generator shown in fig. 13 is a half-pack structure.

In fig. 13, a partial region of the surface of the second polymer insulating layer 42 on the side provided with the second electrode 41 is in contact with the conductive shielding layer 14, the first extraction electrode 16 is connected to the first electrode 10, and the second extraction electrode 17 is connected to the conductive shielding layer 14. The embodiment is not limited to this connection manner, and may also be: the first extraction electrode is connected with the first electrode, and the second extraction electrode is connected with the intermediate electrode layer; or the first extraction electrode is connected with the first electrode, and the second extraction electrode is connected with the second electrode; or the first extraction electrode is connected with the intermediate electrode layer, and the second extraction electrode is connected with the second electrode or the shielding conductive layer. The first lead-out electrode and the second lead-out electrode are connected with the corresponding layer structures in a riveting mode.

When the friction generator in this embodiment is subjected to a pressure, for example, the heartbeat of a fetus and/or vibration and/or micro-vibration generated by the fetus moving in the womb of a pregnant woman act on the friction generator, the pressure generated by different actions can generate friction of different degrees between the first high molecular polymer insulating layer and the intermediate electrode layer and/or between the second high molecular polymer insulating layer and the intermediate electrode layer, so that the first electrode, the intermediate electrode layer and the second electrode respectively induce corresponding charges, and further, because the materials used for the first high molecular polymer insulating layer, the second high molecular polymer insulating layer and the intermediate electrode layer are different, potential differences of different degrees are generated between the first electrode and the intermediate electrode layer, between the second electrode and the intermediate electrode, and between the first electrode and the second electrode, and meanwhile, because a partial region of the second electrode is in contact with the shielding layer, therefore, the first extraction electrode and the second extraction electrode which are connected with each layer in the connection mode output fetal electrocardiosignals and/or fetal movement signals with different intensities.

In this embodiment, the second polymer insulating layer in the second embodiment of the friction generator in fig. 5 is replaced by the stacked intermediate electrode layer and the second polymer insulating layer having the second electrode on one side surface, except for the above differences, specific settings of other layer structures in this embodiment can be referred to the description of the second embodiment of the friction generator in fig. 5, and are not described again here.

In each embodiment of the above friction generator, the first electrode may be a conductive tape, and the first polymer insulating layer is adhered to the tape surface of the conductive tape. The first polymer insulating layer may be a film formed of a polymer material, such as a lattice polydimethylsiloxane film, i.e., a PDMS film. The second polymer insulating layer may also be a film formed of a polymer material, preferably a material different from that selected for the first polymer insulating layer, such as a polyethylene terephthalate film, i.e., a PET film. The second high molecular polymer insulating layer having the second electrode disposed on one side surface thereof may be a polyethylene terephthalate film having a surface disposed with metal aluminum, i.e., a PET/Al film. The second electrode can also be a conductive adhesive tape, and the adhesive surface of the conductive adhesive tape is adhered to the PET film. The second electrode layer or the intervening electrode layer is a conductive tape. The insulating layer can be an insulating tape with glue on one side or on two sides, such as a PET tape. The conductive shielding layer may be a single-sided adhesive or an adhesive-free conductive tape. The protective layer can be a fabric layer, a plastic layer or a plastic film, and if the protective layer is a plastic layer, the protective layer is light and thin plastic.

In each of the above embodiments of the friction generator, a protruding structure may be disposed on any one of the two surfaces forming the friction interface, and the present invention is not limited to the protruding shape. For example, a side surface of the first polymer insulating layer facing the second polymer insulating layer or the second electrode layer or the intermediate electrode layer is provided with a protrusion structure. Fig. 14 is a schematic view of a side surface of the first polymer insulating layer of the friction generator selected for use by the fetal heart and fetal movement monitoring sensor of the present invention. As shown in fig. 14, the first polymer insulating layer is a rectangular film with a bump array disposed on the surface, wherein the distance between the outermost bump close to the first long side of the rectangular film and the first long side is equal to the distance between the outermost bump close to the second long side of the rectangular film and the second long side; the distance between the outermost convex point close to the first short side of the rectangular film and the first short side is equal to the distance between the outermost convex point close to the second short side of the rectangular film and the second short side. The arrangement mode can improve the sensitivity of the friction generator, enables the friction generator to output a fetal heart electrical signal and/or a fetal movement electrical signal more stably, and improves the monitoring stability and reliability of the friction generator. Of course, it may be different from fig. 14, that is, the distance between the outermost convex point near the first long side of the rectangular film and the first long side is not equal to the distance between the outermost convex point near the second long side of the rectangular film and the second long side; the distance between the outermost convex point close to the first short side of the rectangular film and the first short side is not equal to the distance between the outermost convex point close to the second short side of the rectangular film and the second short side, and is not limited herein.

Optionally, the distance between the outermost protrusion near the first long side of the rectangular film and the first long side or the distance between the outermost protrusion near the second long side of the rectangular film and the second long side is 0.1mm to 10mm, preferably 1 mm; the distance between the outermost protrusion near the first short side of the rectangular film and the first short side or the distance between the outermost protrusion near the second short side of the rectangular film and the second short side is 0.1mm to 10mm, preferably 1 mm.

Optionally, the height of the bumps in the bump array is 0.01mm-5mm, preferably 1.25 mm; the bump pitch is 0.01mm to 30mm, preferably 10 mm.

In a preferred embodiment, the first polymer insulating layer is a dot matrix PDMS film, and the second polymer insulating layer is a PET film. The thickness of the lattice PDMS film is 50 μm to 1000 μm, preferably 200 μm; the thickness of the PET film is 30 to 500. mu.m, preferably 50 μm.

Fig. 15 is a flowchart of a first embodiment of a method for manufacturing a friction generator selected by the fetal heart and fetal movement monitoring sensor of the present invention. As shown in fig. 15, the manufacturing method of the friction generator includes the following steps:

step 101, manufacturing a first friction power generation layer and a second friction power generation layer, and laminating the first friction power generation layer and the second friction power generation layer together, wherein a friction interface is formed between the first friction power generation layer and the second friction power generation layer.

Step 102, cutting an insulating layer, and coating the first friction power generation layer and the second friction power generation layer with the insulating layer; and the number of the first and second groups,

and 103, cutting the conductive shielding layer, and coating the first friction power generation layer, the second friction power generation layer and the insulating layer with the conductive shielding layer.

Before the insulating layer is cut, connecting a first extraction electrode and a second extraction electrode with a first friction power generation layer and a second friction power generation layer respectively, and exposing the first extraction electrode and the second extraction electrode when the insulating layer is coated; or before the insulating layer is cut, connecting the first extraction electrode with the first friction generating layer or the second friction generating layer, exposing the first extraction electrode when the insulating layer is coated, and connecting the second extraction electrode with the conductive shielding layer before or after the conductive shielding layer is coated.

And 104, cutting the protective layer, and coating the outer side surface of the conductive shielding layer by using the protective layer.

Further, the step 101 includes: manufacturing a first high-molecular polymer insulating layer; cutting the conductive adhesive tape with the adhesive on the single surface to obtain a first electrode; and sticking the first electrode and the first high molecular polymer insulating layer together to form a first friction power generation layer. Cutting the conductive adhesive tape to obtain a second electrode layer serving as a second friction power generation layer; or, a second high molecular polymer insulating layer is manufactured to be used as a second friction power generation layer; or, a second electrode is arranged on one side surface of the manufactured second high molecular polymer insulating layer by adopting a coating or sputtering process, and the second high molecular polymer insulating layer with the second electrode arranged on one side surface is used as a second friction power generation layer.

Further, the manufacturing of the second friction power generation layer further includes: and manufacturing an intermediate electrode layer. And the intermediate electrode layer and the second high molecular polymer insulating layer or the second high molecular polymer insulating layer with the second electrode arranged on one side surface are stacked together to be used as a second friction power generation layer.

The step 102 includes: cutting the insulating layer, wherein the length of the insulating layer is greater than the sum of 2 times of the thicknesses of the first friction power generation layer and the second friction power generation layer, the length of the first friction power generation layer or the second friction power generation layer which is larger than the length of the first friction power generation layer or the second friction power generation layer is smaller than the sum of 2 times of the thicknesses of the first friction power generation layer and the second friction power generation layer, and the length of the first friction power generation layer or the second friction power generation layer which is larger than the length of the first friction power generation layer or the second friction power generation layer, the width of the insulating layer is greater than the sum of 2 times of the thicknesses of the first friction power generation layer and the second friction power generation layer, the width of the first friction power generation layer or the second friction power generation layer is larger than the sum of the widths of the first friction power generation layer and the second friction power generation layer, and the; and placing the first friction power generation layer and the second friction power generation layer which are stacked together in the middle of the insulating layer, and exposing partial area of the second friction power generation layer after coating the insulating layer.

Specifically, if the length of the first triboelectric generation layer is L₁Width of K₁Thickness of H₁The length of the second friction electricity generation layer is L₂Width of K₂Thickness of H₂And L is₁Greater than L₂，K₁Less than K₂Then, 2 (H)₁+H₂)+L₁<Length of the insulating layer<2(H₁+H₂)+2L₁，2(H₁+H₂)+K₂<Width of the insulating layer<2(H₁+H₂)+2K₂(ii) a If the length of the first friction electricity generation layer is L₁Width of K₁Thickness of H₁The length of the second friction electricity generation layer is L₂Width of K₂Thickness of H₂And L is₁Less than L₂，K₁Greater than K₂Then, 2 (H)₁+H₂)+L₂<Length of the insulating layer<2(H₁+H₂)+2L₂，2(H₁+H₂)+K₁<Width of the insulating layer<2(H₁+H₂)+2K₁。

Alternatively, the step 102 includes: cutting the insulating layer, wherein the length of the insulating layer is greater than or equal to the sum of the thicknesses of the first friction power generation layer and the second friction power generation layer and the length of the first friction power generation layer or the second friction power generation layer with the larger length, and the width of the insulating layer is greater than or equal to the sum of 2 times of the thicknesses of the first friction power generation layer and the second friction power generation layer and 2 times of the width of the first friction power generation layer or the second friction power generation layer with the larger width; or cutting the insulating layer, so that the length of the insulating layer is greater than or equal to the sum of 2 times of the thicknesses of the first friction power generation layer and the second friction power generation layer and 2 times of the larger length of the first friction power generation layer or the second friction power generation layer, and the width of the insulating layer is greater than or equal to the sum of the thicknesses of the first friction power generation layer and the second friction power generation layer and the larger width of the first friction power generation layer or the second friction power generation layer; the first friction electricity generation layer and the second friction electricity generation layer which are arranged together in a stacked mode are placed in the middle of the insulating layer, and the first friction electricity generation layer and the second friction electricity generation layer are completely covered with the insulating layer.

Specifically, if the length of the first triboelectric generation layer is L₁Width of K₁Thickness of H₁The length of the second friction electricity generation layer is L₂Width of K₂Thickness of H₂And L is₁Greater than L₂，K₁Less than K₂Then, the length of the insulating layer is not less than H₁+H₂+L₁The width of the insulating layer is more than or equal to 2 (H)₁+H₂)+2K₂(ii) a If the length of the first friction electricity generation layer is L₁Width of K₁Thickness of H₁The length of the second friction electricity generation layer is L₂Width of K₂Thickness of H₂And L is₁Less than L₂，K₁Greater than K₂Then, the length of the insulating layer is not less than 2 (H)₁+H₂)+2L₂The width of the insulating layer is more than or equal to H₁+H₂+K₁。

Further, connecting the first extraction electrode and the second extraction electrode with the first friction power generation layer and the second friction power generation layer respectively specifically comprises: connecting the first lead-out electrode and the second lead-out electrode with the first friction power generation layer and the second friction power generation layer respectively in a riveting mode; or, connecting the first extraction electrode with the first friction power generation layer or the second friction power generation layer specifically comprises: connecting the first extraction electrode with the first friction power generation layer or the second friction power generation layer in a riveting mode; connecting the second extraction electrode with the conductive shielding layer specifically comprises: and connecting the second extraction electrode with the conductive shielding layer by riveting.

Further, the step of forming the first polymer insulating layer further includes:

manufacturing a high polymer film with a salient point array distributed on the surface;

cutting the high molecular polymer film to obtain a rectangular film, wherein the distance between the outermost convex point close to the first long side of the rectangular film and the first long side is equal to the distance between the outermost convex point close to the second long side of the rectangular film and the second long side; the distance between the outermost convex point close to the first short side of the rectangular film and the first short side is equal to the distance between the outermost convex point close to the second short side of the rectangular film and the second short side.

Two embodiments of the method for manufacturing the friction generator will be described in detail below by taking the first friction generating layer as a dot matrix PDMS film and the second friction generating layer as a PET/Al film.

Fig. 16 is a flowchart of a second embodiment of the method for manufacturing a friction generator selected by the fetal heart and fetal movement monitoring sensor of the present invention. As shown in fig. 16, the manufacturing method of the friction generator includes the following steps:

step 201, forming PDMS to obtain a dot matrix PDMS film as a first high polymer insulating layer;

step 202, cutting the conductive adhesive tape with the adhesive on one side to obtain a first electrode;

Step 203, sticking the cut conductive adhesive tape with the adhesive on the single surface and the dot matrix PDMS film together to obtain a first friction power generation layer, namely sticking a first electrode and a first high polymer insulating layer together to obtain a first friction power generation layer, wherein the adhesive surface of the conductive adhesive tape is stuck to the surface of one side of the dot matrix PDMS film, which is not provided with the dot matrix;

step 204, riveting a first leading-out electrode to connect the first leading-out electrode with a conductive adhesive tape serving as a first electrode;

step 205, cutting the PET/Al film to obtain a second friction power generation layer, wherein an Al electrode is arranged on one side surface of the PET film through a coating or sputtering process, and then cutting is carried out;

step 206, assembling a friction generator structure, namely assembling a dot matrix PDMS film and a PET/Al film which are adhered with conductive adhesive tapes;

step 207, cutting the insulating layer;

step 208, laminating or wrapping an insulating layer: taking the lamination as an example, the assembled friction generator structure is placed in the middle, 2 pieces of insulating layers with the same size and the length being more than or equal to the sum of the length of the dot matrix PDMS film and the thickness of the first electrode, the dot matrix PDMS film and the PET/Al film which are 2 times of the thickness of the first electrode, the dot matrix PDMS film and the PET/Al film, and the width of the dot matrix PDMS film which are 2 times of the thickness of the first electrode, the dot matrix PDMS film and the PET/Al film are laminated up and down to be sealed, and the first lead-out electrode is exposed. Taking a package as an example, placing the assembled friction generator structure in the middle, selecting 1 insulating layer with the length being more than or equal to the sum of the thicknesses of the first electrode, the dot matrix PDMS film and the PET/Al film and the length of the dot matrix PDMS film, and the width being more than or equal to the sum of 2 times of the thicknesses of the first electrode, the dot matrix PDMS film and the PET/Al film and 2 times of the width of the dot matrix PDMS film to wrap the friction generator structure to be closed, and exposing the first leading-out electrode; or placing the assembled friction generator structure in the middle, selecting 1 insulating layer with the length being more than or equal to the sum of 2 times of the thicknesses of the first electrode, the dot matrix PDMS film and the PET/Al film and 2 times of the length of the dot matrix PDMS film and the width being more than or equal to the sum of the thicknesses of the first electrode, the dot matrix PDMS film and the PET/Al film and the width of the dot matrix PDMS film to wrap the friction generator structure to be closed, and exposing the first leading-out electrode;

Step 209, cutting the conductive shielding layer, and riveting a second extraction electrode to connect the second extraction electrode with the conductive shielding layer;

step 210, attaching or wrapping a conductive shielding layer: and (3) attaching or wrapping the conductive shielding layer: taking the bonding as an example, the friction generator structure assembled in step S208 is placed in the middle, 2 pieces of the conductive shielding layer with the same size are selected, and the conductive shielding layer with the length greater than or equal to 2 times the thickness of the friction generator structure assembled in step S208 and the sum of the length of the friction generator structure assembled in step S208, and the width greater than or equal to 2 times the thickness of the friction generator structure assembled in step S208 and the sum of the width of the friction generator structure assembled in step S208 is bonded up and down to be sealed, and the first lead-out electrode is exposed. Taking the wrapping as an example, the friction generator structure assembled in step S208 is placed in the middle, and 1 conductive shielding layer with the length greater than or equal to the sum of the thickness of the friction generator structure assembled in step S208 and the length of the friction generator structure assembled in step S208 and the width greater than or equal to the sum of 2 times of the thickness of the friction generator structure assembled in step S208 and 2 times of the width of the friction generator structure assembled in step S208 is selected to wrap the friction generator assembled in step S208 to be airtight, and the first extraction electrode is exposed; or, putting the friction generator structure assembled in the step S208 in the middle, selecting 1 conductive shielding layer with the length greater than or equal to the sum of 2 times of the thickness of the friction generator structure assembled in the step S208 and 2 times of the length of the friction generator structure assembled in the step S208, and the width greater than or equal to the sum of the thickness of the friction generator structure assembled in the step S208 and the width of the friction generator structure assembled in the step S208 to wrap the friction generator structure in the step S208 to be airtight, and exposing the first lead-out electrode;

And step 211, cutting the protective layer and finally packaging.

It should be noted that the lengths and widths of the first electrode, the lattice PDMS film and the PET/Al film are the same in this embodiment.

Fig. 17 is a flowchart of a third embodiment of the method for manufacturing a friction generator selected for use by the fetal heart and fetal movement monitoring sensor of the present invention. As shown in fig. 17, the manufacturing method of the friction generator includes the following steps:

301, forming PDMS to obtain a dot matrix PDMS film as a first high polymer insulating layer;

step 302, cutting the conductive adhesive tape with the adhesive on one side to obtain a first electrode;

step 303, sticking the cut conductive adhesive tape with the adhesive on the single surface and the dot matrix PDMS film together to obtain a first friction power generation layer, namely sticking a first electrode and a first high polymer insulating layer together to obtain a first friction power generation layer, wherein the adhesive surface of the conductive adhesive tape is stuck to the surface of one side of the dot matrix PDMS film, which is not provided with the dot matrix;

304, riveting a first leading-out electrode to connect the first leading-out electrode with a conductive adhesive tape serving as a first electrode;

305, cutting the PET/Al film to obtain a second friction power generation layer, wherein an Al electrode is arranged on one side surface of the PET film through a coating or sputtering process, and then cutting is carried out;

Step 306, assembling a friction generator structure, namely assembling a dot matrix PDMS film and a PET/Al film which are adhered with conductive adhesive tapes;

step 307, cutting the insulating layer;

step 308, insulating layer wrapping: putting the assembled friction generator structure in the middle, wherein the length of 1 piece of friction generator structure is greater than the sum of 2 times of the thicknesses of the first electrode, the dot matrix PDMS film and the PET/Al film and the length of the dot matrix PDMS film and is less than the sum of 2 times of the thicknesses of the first electrode, the dot matrix PDMS film and the PET/Al film and 2 times of the length of the dot matrix PDMS film; the insulating layer, the width of which is greater than the sum of the width of the first electrode, 2 times of the thickness of the dot matrix PDMS film and the PET/Al film and is less than the sum of the width of the first electrode, 2 times of the thickness of the dot matrix PDMS film and the width of the PET/Al film and 2 times of the width of the dot matrix PDMS film, wraps the friction generator structure until the partial area of the second friction generating layer is exposed, and exposes the first leading-out electrode;

step 309, cutting the conductive shielding layer, and riveting a second extraction electrode to connect the second extraction electrode with the conductive shielding layer;

step 310, attaching or wrapping a conductive shielding layer: taking the bonding as an example, the friction generator structure assembled in step S308 is placed in the middle, 2 pieces of the conductive shielding layer with the same size are selected, and the conductive shielding layer with the length greater than or equal to 2 times the thickness of the friction generator structure assembled in step S308 and the sum of the length of the friction generator structure assembled in step S308, and the width greater than or equal to 2 times the thickness of the friction generator structure assembled in step S308 and the sum of the width of the friction generator structure assembled in step S308 is bonded up and down to be sealed, and the first lead-out electrode is exposed. Taking the wrapping as an example, the friction generator structure assembled in step S308 is placed in the middle, and 1 conductive shielding layer with the length greater than or equal to the sum of the thickness of the friction generator structure assembled in step S308 and the length of the friction generator structure assembled in step S308 and the width greater than or equal to the sum of 2 times of the thickness of the friction generator structure assembled in step S308 and 2 times of the width of the friction generator structure assembled in step S308 is selected to wrap the friction generator assembled in step S308 to be sealed, and the first extraction electrode is exposed; or, putting the friction generator structure assembled in the step S308 in the middle, selecting 1 conductive shielding layer with the length greater than or equal to the sum of 2 times of the thickness of the friction generator structure assembled in the step S308 and 2 times of the length of the friction generator structure assembled in the step S308, and the width greater than or equal to the sum of the thickness of the friction generator structure assembled in the step S308 and the width of the friction generator structure assembled in the step S308 to wrap the friction generator structure in the step S308 to be airtight, and exposing the first lead-out electrode;

And 311, cutting the protective layer and finally packaging.

The utility model discloses the friction electric generator who uses in adopts the flexible film material of the cutting of being convenient for to make, so it has self-power, sensitivity is high, the output signal of telecommunication is stable, use easy operation, the size is adjustable wantonly, the quality is light, the user uses comfortable convenience, and structure and preparation simple process, low cost, the characteristics that are fit for extensive industrial production.

In the embodiment of the fetal heart and fetal movement monitoring band described above, the friction generator is used as the fetal heart and fetal movement monitoring sensor to simultaneously monitor the fetal heart and the fetal movement signal, the utility model discloses but not limited to this, because the fetal heart sound is the fetal heart beat sound, also is a form of presentation of fetal heart beat, the utility model discloses further utilize the fetal sound monitoring sensor to gather the fetal heart sound (i.e. fetal sound). The fetal heart electrical signals monitored by the friction generator and the fetal sound electrical signals monitored by the fetal sound monitoring sensor are combined to monitor the fetal heart beat more accurately and better.

Wherein, the fetal sound monitoring sensor can adopt a piezoelectric type fetal sound monitoring sensor, preferably a PVDF piezoelectric film sensor. The PVDF piezoelectric film has the characteristics of soft texture, light weight, similar acoustic impedance with water, good matching state, high application sensitivity, wide frequency response range and the like. Due to the characteristics, the PVDF piezoelectric film can be used as a fetal sound monitoring sensor for monitoring the heartbeat sound of a fetus.

Specifically, the utility model provides a structure of child heart fetal movement monitoring area of still another embodiment is different from the one in fig. 1 in that, child heart fetal movement monitoring part still includes at least one child sound monitoring sensor for gather child heart sound, and convert it into child sound signal output of telecommunication. The fetal heart related monitoring data can be more accurately and better obtained by combining the fetal heart electrical signals monitored by the friction generator and the fetal sound electrical signals monitored by the fetal sound monitoring sensor.

In one embodiment, the fetal heart and fetal movement monitoring component comprises at least one triboelectric and piezoelectric hybrid generator, wherein a triboelectric component in the triboelectric and piezoelectric hybrid generator constitutes the fetal heart and fetal movement monitoring sensor and a piezoelectric component in the triboelectric and piezoelectric hybrid generator constitutes the fetal sound monitoring sensor; the fetal heart and fetal movement monitoring sensor and the fetal sound monitoring sensor have a common electrode layer.

Fig. 18 is a schematic view of a cross-sectional structure of a triboelectric and piezoelectric hybrid generator as a component for monitoring fetal movement. As shown in fig. 18, the triboelectric and piezoelectric composite generator includes: the piezoelectric sensor comprises a first electrode layer 50, a first high molecular polymer insulating layer 60, a second electrode layer 70, a PVDF piezoelectric thin film sensor 80 and a third electrode layer 90, wherein the first electrode layer 50, the first high molecular polymer insulating layer 60 and the second electrode layer 70 are friction electric components (namely components forming a friction generator), and the second electrode layer 70, the PVDF piezoelectric thin film sensor 80 and the third electrode layer 90 are piezoelectric components (namely components forming a piezoelectric generator). The first electrode layer 50 is used as an electrical signal output end of the friction generator, the third electrode layer 90 is used as an electrical signal output end of the piezoelectric generator, the piezoelectric generator and the friction generator share the second electrode layer 70, which can be grounded and used as a reference electrode, and respectively form a potential difference with the first electrode layer 50 and the third electrode layer 90, and can also be suspended and not used, when the piezoelectric generator and the friction generator are suspended and not used, a reference potential point needs to be found in an external circuit or module to be used as another reference electrode, so that a potential difference is formed. As shown in fig. 18, the first electrode layer 50, the first high molecular polymer insulating layer 60 and the second electrode layer 70 constitute a fetal heart and fetal movement monitoring sensor, the second electrode layer 70, the PVDF piezoelectric film sensor 80 and the third electrode layer 90 constitute a fetal sound monitoring sensor, and the common electrode layer of the fetal heart and fetal sound monitoring sensors is the second electrode layer 70. The friction generator in fig. 18 is a three-layer structure, and the utility model discloses the friction electricity and the piezoelectricity composite generator that friction generator and piezoelectric generator that can also adopt four-layer structure, five-layer intermediate film structure or five-layer intermediate electrode structure constitute, do not do the restriction here.

In addition to the above differences, the specific arrangement of the structures of the other layers in the present embodiment can be referred to the description of the fetal heart and fetal movement monitoring belt shown in fig. 1, and will not be described herein again.

The utility model provides a child heart fetal movement monitoring belt adopts the friction generator of high sensitivity as child heart fetal movement monitoring sensor, can realize the monitoring to child heart and fetal movement signal simultaneously, and the misstatement rate is low, and is nontoxic environmental protection, safe and reliable; meanwhile, the PVDF piezoelectric film sensor is adopted as the fetal sound monitoring sensor in a combined mode, so that the fetal sound signal monitoring is increased, the monitoring is more accurate, and the monitoring quality is improved. The fetal heart and fetal movement monitoring device provided by the utility model adopts the light and flexible friction generator and the PVDF piezoelectric film sensor as the fetal heart and fetal movement monitoring component, thereby reducing the weight of the fetal heart and fetal movement monitoring belt and making the pregnant woman more comfortable when in use; the structure and the manufacturing process are simple, the cost is low, and the method is suitable for large-scale industrial production; this child heart child moves monitoring band simultaneously through set up insulation protection part and encapsulation part in self structure, this not only has reduced the wearing and tearing to child heart child moves monitoring band, also can avoid external environment (like humidity, dust) to the influence in child heart child moves monitoring band, improves the job stabilization nature and the reliability in child heart child moves monitoring band, still plays the effect of protecting against radiation and shielding simultaneously, has prolonged child heart child moves monitoring band life.

The utility model also provides a child heart fetal movement monitoring devices, including the fetal heart fetal movement monitoring area, still include: and the signal processing and analyzing module is connected with the fetal heart and fetal movement monitoring belt. The fetal heart and fetal movement monitoring zone can be referred to the description of the fetal heart and fetal movement monitoring zone in the above embodiment.

Fig. 19 is the schematic circuit diagram of the signal processing and analyzing module in the embodiment of the fetal heart and fetal movement monitoring device, as shown in fig. 19, the input end of the signal processing and analyzing module 500 is connected to the output end of the fetal heart and fetal movement monitoring component 100, and is used for processing and analyzing the fetal heart electrical signal and/or fetal movement electrical signal output by the fetal heart and fetal movement monitoring component 100, and generating the fetal heart analysis electrical signal according to the fetal heart electrical signal and/or generating the fetal movement analysis electrical signal according to the fetal movement electrical signal. To increase the comfort level of use for the pregnant woman, the signal processing and analyzing module 500 may be disposed outside the fetal heart and fetal movement monitoring zone that is not in contact with the abdominal wall of the pregnant woman. As shown in fig. 20, the signal processing and analyzing module 500 may be disposed on an outer surface of the packaging member of the fetal heart/fetal movement monitoring band, or may be disposed at other positions of the fetal heart/fetal movement monitoring band that do not affect the use of the pregnant woman, and is not limited in particular. Or different from the structure shown in fig. 20, the signal processing and analyzing module can also be arranged separately from the fetal heart and fetal movement monitoring belt and arranged outside the fetal heart and fetal movement monitoring belt, and the signal processing and analyzing module and the fetal heart and fetal movement monitoring belt are connected through a lead.

The signal processing and analyzing module 500 includes: an amplification module 510, a rectification module 520, a filtering module 530, an analog-to-digital conversion module 540, a micro-control module 550, and a power supply module 560. The input end of the amplification module 510 is connected to the output end of the fetal heart and fetal movement monitoring unit 100, and is configured to amplify the fetal heart electrical signal and/or the fetal movement electrical signal output by the fetal heart and fetal movement monitoring unit 100. The input end of the rectifying module 520 is connected to the output end of the amplifying module 510, and is configured to rectify the amplified fetal electrocardiosignals and/or fetal movement electrical signals output by the amplifying module 510. The input end of the filtering module 530 is connected to the output end of the rectifying module 520, and is configured to filter interference noise in the fetal heart electrical signal and/or fetal movement electrical signal output by the rectifying module 520. The input terminal of the analog-to-digital conversion module 540 is connected to the output terminal of the filtering module 530, and is configured to convert the analog fetal heart electrical signal and/or the analog fetal movement electrical signal output by the filtering module 530 into a digital fetal heart electrical signal and/or a digital fetal movement electrical signal. The input end of the micro-control module 550 is connected to the output end of the analog-to-digital conversion module 540, and is configured to generate a fetal heart analysis electrical signal and/or a fetal movement analysis electrical signal according to the digital fetal heart electrical signal and/or the digital fetal movement electrical signal output by the analog-to-digital conversion module 540. The output end of the power module 560 is connected to the power input ends of the amplifying module 510, the rectifying module 520, the filtering module 530, the analog-to-digital converting module 540 and the micro-control module 550, respectively, and is used for providing power for the amplifying module 510, the rectifying module 520, the filtering module 530, the analog-to-digital converting module 540 and the micro-control module 550.

Fig. 21 is a schematic diagram of another circuit principle of the signal processing and analyzing module in the embodiment of the fetal heart and fetal movement monitoring device provided by the present invention, as shown in fig. 21, the difference between the circuit principle of the signal processing and analyzing module of the present embodiment and fig. 19 is that the signal processing and analyzing module 500 further includes: and the input end of the wireless transmitting circuit 570 is connected with the output end of the micro control module 550, and is used for transmitting the fetal heart analysis electric signal and/or the fetal movement analysis electric signal output by the micro control module 550 to the terminal device 600.

Fig. 22 is a schematic diagram of a schematic circuit of a signal processing and analyzing module in an embodiment of the fetal heart and fetal movement monitoring apparatus according to the present invention, as shown in fig. 22, a first input terminal of the signal processing and analyzing module 500 is connected to an output terminal of the fetal heart and fetal movement monitoring sensor 110, and is configured to process and analyze the fetal heart electrical signal and/or fetal movement electrical signal output by the fetal heart and fetal movement monitoring sensor 110, and generate a fetal heart analyzing electrical signal according to the fetal heart electrical signal and/or generate a fetal movement analyzing electrical signal according to the fetal movement electrical signal; a second input terminal of the signal processing and analyzing module 500 is connected to the output terminal of the fetal sound monitoring sensor 120, and is configured to process and analyze the fetal sound electrical signal output by the fetal sound monitoring sensor, and generate a fetal sound analyzing electrical signal according to the fetal sound electrical signal.

As shown in fig. 22, the signal processing and analyzing module 500 includes: an amplification module 510, a rectification module 520, a filtering module 530, an analog-to-digital conversion module 540, a micro-control module 550, and a power supply module 560. The amplifying module 510 includes a first amplifying module 511 and a second amplifying module 512, an input end of the first amplifying module 511 is connected to an output end of the fetal heart and fetal movement monitoring sensor 110, and is configured to amplify the fetal heart electrical signal and/or fetal movement electrical signal output by the fetal heart and fetal movement monitoring component 110, and an input end of the second amplifying module 512 is connected to an output end of the fetal sound monitoring sensor 120, and is configured to amplify the fetal sound electrical signal output by the fetal sound monitoring sensor 120; the input end of the rectifying module 520 is connected to the output end of the first amplifying module 511, and is configured to rectify the amplified fetal electrocardiosignals and/or fetal movement electrical signals output by the first amplifying module 511; the filtering module 530 comprises a first filtering module 531 and a second filtering module 532, wherein an input end of the first filtering module 531 is connected with an output end of the rectifying module 520 and is used for filtering interference clutter in the fetal heart electrical signal and/or fetal movement electrical signal output by the rectifying module 520, and an input end 532 of the second filtering module is connected with an output end of the second amplifying module 512 and is used for filtering interference clutter in the amplified fetal sound electrical signal output by the second amplifying module 512; the analog-to-digital conversion module 540 has a first input end and a second input end, the first input end of the analog-to-digital conversion module is connected with the output end of the first filtering module 511, and is used for converting the analog fetal heart electrical signal and/or the analog fetal movement electrical signal output by the first filtering module 511 into a digital fetal heart electrical signal and/or a digital fetal movement electrical signal, the second input end of the analog-to-digital conversion module 540 is connected with the output end of the second filtering module 512, and is used for converting the analog fetal sound electrical signal output by the second filtering module 512 into a digital fetal sound electrical signal; the input end of the micro-control module 550 is connected to the output end of the analog-to-digital conversion module 540, and is configured to generate corresponding fetal heart analysis electrical signal and/or fetal movement analysis electrical signal and fetal sound analysis electrical signal according to the digital fetal heart electrical signal and/or digital fetal movement electrical signal and digital fetal sound electrical signal output by the analog-to-digital conversion module 540; the output terminal of the power module 560 is connected to the power input terminals of the amplifying module 510 (i.e. the power input terminals of the first amplifying module 511 and the second amplifying module 512), the rectifying module 520, the filtering module 530 (i.e. the power input terminals of the first filtering module 531 and the second filtering module 532), the analog-to-digital conversion module 540 and the micro-control module 550, respectively, for providing power to the amplifying module 510, the rectifying module 520, the filtering module 530, the analog-to-digital conversion module 540 and the micro-control module 550.

Optionally, the signal processing and analyzing module 500 further includes: and the input end of the wireless transmitting circuit is connected with the output end of the micro control module and is used for transmitting the fetal heart analysis electric signal and/or the fetal movement analysis electric signal and/or the fetal sound analysis electric signal output by the micro control module to the terminal equipment.

The utility model provides a child heart child moves monitoring devices adopts the friction generator of high sensitivity as child heart child moves monitoring sensor, can realize the monitoring to child heart and child move signal simultaneously, and the misstatement rate is low, and is nontoxic environmental protection, safe and reliable; meanwhile, the PVDF piezoelectric film sensor is adopted as the fetal sound monitoring sensor in a combined mode, so that the fetal sound signal monitoring is increased, the monitoring is more accurate, and the monitoring quality is improved. The fetal heart and fetal movement monitoring device provided by the utility model adopts the light and flexible friction generator and the PVDF piezoelectric film sensor as the fetal heart and fetal movement monitoring component, thereby reducing the weight of the fetal heart and fetal movement monitoring device and ensuring that the pregnant woman feels more comfortable when using the device; the structure and the manufacturing process are simple, the cost is low, and the method is suitable for large-scale industrial production; this child heart child moves monitoring devices simultaneously through set up insulation protection part and encapsulation part in child heart child moves monitoring band, this wearing and tearing to child heart child moves monitoring band have not only been reduced, also can avoid external environment (like humidity, dust) to the influence in child heart child moves monitoring band, improves the job stabilization nature and the reliability in child heart child moves monitoring band, still plays radiation protection and shielded effect simultaneously, has prolonged child heart child moves monitoring band life.

The utility model also provides a child heart fetal movement monitoring system, including the fetal heart fetal movement monitoring area, still include: and (4) terminal equipment. The fetal heart and fetal movement monitoring belt can refer to the description of the fetal heart and fetal movement monitoring belt in the above embodiments, and the description thereof is omitted. In the fetal heart and fetal movement monitoring system, the fetal heart and fetal movement monitoring zone does not comprise the signal processing and analyzing module. The terminal equipment is connected with the output end of the fetal heart and fetal movement monitoring component of the fetal heart and fetal movement monitoring belt through a lead and is used for processing and analyzing the fetal heart electrical signals and/or fetal movement electrical signals output by the fetal heart and fetal movement monitoring component, generating fetal heart analysis electrical signals according to the fetal heart electrical signals and/or generating fetal movement analysis electrical signals according to the fetal movement electrical signals and carrying out judgment and analysis. The terminal equipment is also used for processing and analyzing the fetal sound electric signals output by the fetal heart and fetal movement monitoring component, generating fetal sound analysis electric signals according to the fetal sound electric signals and carrying out judgment and analysis.

The terminal device may be a mobile phone, a tablet computer, a computer, and the like, and is not limited specifically here. The terminal device includes the signal processing and analyzing module used in the above embodiment, and can process and analyze the fetal heart electrical signal, the fetal movement electrical signal and/or the fetal sound electrical signal output by the fetal heart and fetal movement monitoring component, and judge and analyze the health condition of the fetus according to the electrical signals, and the terminal device can also provide fetal heart beat sound, fetal heart rate curve, fetal movement frequency diagram, and the like, which are all exemplified above, and the specific functions are not limited to these.

The utility model also provides a child heart fetal movement monitoring system, including child heart fetal movement monitoring devices, still include: a terminal device; the fetal heart and fetal movement monitoring device can refer to the description of the fetal heart and fetal movement monitoring device in the above embodiments, and the description thereof is omitted. In the fetal heart and fetal movement monitoring system, the fetal heart and fetal movement monitoring device comprises a signal processing and analyzing module. The terminal device is connected with the output end of the signal processing and analyzing module through a wire or in a wireless communication mode and is used for judging and analyzing according to the fetal heart analysis electric signal and/or fetal movement analysis electric signal output by the signal processing and analyzing module. The terminal equipment is also used for judging and analyzing according to the fetal sound analysis electric signal output by the signal processing and analyzing module.

The terminal device may be a mobile phone, a tablet computer, a computer, and the like, and is not limited specifically here. The terminal device is connected with the output end of the signal processing and analyzing module through a wire or in a wireless communication mode, and can process and analyze the fetal heart electrical signal, the fetal movement electrical signal and/or the fetal sound electrical signal output by the signal processing and analyzing module, judge and analyze the health condition of the fetus according to the electrical signals, provide fetal heart beat sound, fetal heart rate curve, fetal movement frequency diagram and the like, the above are all exemplified, and the specific functions are not limited to the above.

The utility model provides a child heart child moves monitoring system adopts the friction generator of high sensitivity as child heart child moves the monitoring sensor, can realize the monitoring to child heart and child move the signal simultaneously, and the misstatement rate is low, and is nontoxic environmental protection, safe and reliable; meanwhile, the PVDF piezoelectric film sensor is adopted as the fetal sound monitoring sensor in a combined mode, so that the fetal sound signal monitoring is increased, the monitoring is more accurate, and the monitoring quality is improved. The fetal heart and fetal movement monitoring system provided by the utility model adopts the light and flexible friction generator and the PVDF piezoelectric film sensor as the fetal heart and fetal movement monitoring component, thereby reducing the weight of the fetal heart and fetal movement monitoring system and ensuring that the pregnant woman feels more comfortable when using the fetal heart and fetal movement monitoring system; and the structure and the manufacturing process are simple, the cost is low, and the method is suitable for large-scale industrial production.

The utility model discloses in various modules, circuit mentioned are the circuit by the hardware realization, though wherein some module, circuit have integrateed the software, nevertheless the utility model discloses what protect is the hardware circuit of the function that integrated software corresponds, and not only software itself.

It will be appreciated by those skilled in the art that the arrangement of devices shown in the figures or embodiments is merely schematic and representative of a logical arrangement. Where modules shown as separate components may or may not be physically separate, components shown as modules may or may not be physical modules.

Finally, it is noted that: the above list is only the concrete implementation example of the present invention, and of course those skilled in the art can make modifications and variations to the present invention, and if these modifications and variations fall within the scope of the claims of the present invention and their equivalent technology, they should be considered as the protection scope of the present invention.

Claims

1. A fetal heart and fetal activity monitoring belt comprising: the device comprises a fetal heart and fetal movement monitoring component, a packaging component and a fixing component; wherein,

the fetal heart and fetal movement monitoring component comprises at least one fetal heart and fetal movement monitoring sensor and is used for converting the vibration of the fetal heart beating action on the fetal heart and fetal movement monitoring sensor into a fetal heart electrical signal to be output and/or converting the vibration of the fetus moving in the uterus and acting on the fetal heart and fetal movement monitoring sensor into a fetal heart electrical signal to be output;

the packaging component is used for hermetically coating the fetal heart and fetal movement monitoring component inside the packaging component;

the fixing part is used for coating the fetal heart and fetal movement monitoring belt on the abdomen of the pregnant woman.

2. A fetal heart and fetal movement monitoring belt according to claim 1 wherein the fetal heart and fetal movement monitoring means further comprises at least one fetal sound monitoring sensor for collecting fetal heart sounds and converting them into fetal sound electrical signals for output.

3. Fetal heart-fetal activity monitoring belt according to claim 1 or 2, wherein the fetal heart-fetal activity monitoring sensor is a triboelectric generator.

4. A fetal heart and fetal movement monitoring belt according to claim 3 wherein said fetal heart and fetal movement monitoring means is comprised of a plurality of triboelectric generators arranged in M rows and N columns, wherein each of said triboelectric generators has a first output and a second output; the first output ends of the N friction generators in each row are connected, and M row output ends of the fetal heart and fetal movement monitoring component are led out; and the second output ends of the M friction generators in each row are connected, and N row output ends of the fetal heart and fetal movement monitoring component are led out.

5. The fetal heart-fetal movement monitoring zone of claim 1, wherein the encapsulation comprises a first encapsulation and a second encapsulation, the first encapsulation and the second encapsulation being sealed at their edges to form a sealed cavity, the fetal heart-fetal movement monitoring component being disposed in the sealed cavity for hermetically encapsulating the fetal heart-fetal movement monitoring component.

6. A fetal heart fetal movement monitoring zone as claimed in claim 1 further comprising: an insulating protection member located inside the encapsulation member; the insulation protection component comprises an upper insulation protection layer and a lower insulation protection layer, the edges of the upper insulation protection layer and the lower insulation protection layer are sealed to form a sealed cavity, and the fetal heart and fetal movement monitoring component is arranged in the sealed cavity and used for sealing and protecting the fetal heart and fetal movement monitoring component.

7. A fetal heart and fetal movement monitoring belt according to claim 6 wherein the encapsulating member is an insulating encapsulating member; the fetal heart and fetal movement monitoring band further comprises: and the shielding component is arranged between the packaging component and the insulating protection component and covers the insulating protection component.

8. The fetal heart-fetal movement monitoring belt according to claim 1, wherein the fixing member comprises a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion are arranged on the outer surface of the packaging member, the first connecting portion and the second connecting portion are respectively arranged at two sides of the fetal heart-fetal movement monitoring belt, and the fetal heart-fetal movement monitoring belt is covered on the abdomen of the pregnant woman through mutual adhesion or buckling of the first connecting portion and the second connecting portion;

or, the fixing part comprises a first fixing band and a second fixing band, the first fixing band and the second fixing band are respectively provided with a connecting part, and the fetal heart and fetal movement monitoring band is coated on the abdomen of the pregnant woman through mutual adhesion or buckling of the connecting parts.

9. A fetal heart fetal movement monitoring belt according to claim 3 wherein the friction generator comprises:

the first friction power generation layer and the second friction power generation layer are arranged in a stacked mode; a friction interface is formed between the first friction electricity generating layer and the second friction electricity generating layer;

an insulating layer covering the first and second friction power generation layers;

A conductive shielding layer covering the first friction electricity generating layer, the second friction electricity generating layer and the insulating layer; and the number of the first and second groups,

the first extraction electrode and the second extraction electrode are used as the output end of the friction generator;

wherein the first extraction electrode and the second extraction electrode are connected with the first friction power generation layer and the second friction power generation layer, respectively; or the first extraction electrode is connected with the first friction power generation layer or the second friction power generation layer, and the second extraction electrode is connected with the conductive shielding layer.

10. The fetal heart fetal movement monitoring zone of claim 9, wherein the friction generator further comprises: and the protective layer coats the outer surface of the conductive shielding layer.

11. A fetal heart fetal activity monitoring zone according to claim 9 or 10 wherein the insulating layer completely encases the first triboelectric generating layer and partially encases the second triboelectric generating layer such that a partial region of the second triboelectric generating layer is in contact with the conductive shielding layer;

or, the insulating layer completely covers the first friction electricity generating layer and the second friction electricity generating layer.

12. The fetal heart fetal movement monitoring zone of claim 11, wherein the first triboelectric generating layer is a first high molecular polymer insulating layer having a first electrode disposed on one side surface thereof, and the second triboelectric generating layer is a second high molecular polymer insulating layer; the friction interface is formed between the surface of the first high polymer insulating layer, which is not provided with the first electrode, and the second high polymer insulating layer; the first extraction electrode is connected with the first electrode, and the second extraction electrode is connected with the conductive shielding layer;

Or the first friction power generation layer is a first high molecular polymer insulating layer with a first electrode arranged on one side surface, and the second friction power generation layer is a second electrode layer or a second high molecular polymer insulating layer with a second electrode arranged on one side surface; the friction interface is formed between the surface of the first high molecular polymer insulating layer on the side where the first electrode is not arranged and the second electrode layer or the surface of the second high molecular polymer insulating layer on the side where the second electrode is not arranged; the first lead-out electrode is connected with the first electrode; a partial region of the second electrode layer or a partial region of one side surface of the second high molecular polymer insulating layer, on which the second electrode is arranged, is in contact with the conductive shielding layer, and the second extraction electrode is connected with the second electrode layer or the second electrode or the conductive shielding layer;

or the first friction power generation layer is a first high molecular polymer insulating layer with a first electrode arranged on one side surface, and the second friction power generation layer is a second electrode layer or a second high molecular polymer insulating layer with a second electrode arranged on one side surface; the friction interface is formed between the surface of the first high molecular polymer insulating layer on the side where the first electrode is not arranged and the second electrode layer or the surface of the second high molecular polymer insulating layer on the side where the second electrode is not arranged; the first leading-out electrode is connected with the first electrode, and the second leading-out electrode is connected with the second electrode layer or the second electrode; or the first extraction electrode is connected with the first electrode or the second electrode layer or the second electrode, and the second extraction electrode is connected with the conductive shielding layer;

Or the first friction power generation layer is a first high polymer insulating layer with a first electrode arranged on one side surface, and the second friction power generation layer comprises an intermediate electrode layer and a second high polymer insulating layer which are arranged in a stacked mode; the friction interface is formed between the surface of the first high molecular polymer insulating layer, which is not provided with the first electrode, and the intermediate electrode layer and/or the second high molecular polymer insulating layer and the intermediate electrode layer; the first extraction electrode is connected with the first electrode or the intermediate electrode layer, and the second extraction electrode is connected with the conductive shielding layer; or the first extraction electrode is connected with the first electrode, and the second extraction electrode is connected with the intermediate electrode layer;

or the first friction power generation layer is a first high polymer insulating layer with a first electrode arranged on one side surface, and the second friction power generation layer comprises an intermediate electrode layer and a second high polymer insulating layer with a second electrode arranged on one side surface in a laminated manner; the friction interface is formed between the surface of the first high molecular polymer insulating layer, which is not provided with the first electrode, and the intermediate electrode layer and/or the surface of the second high molecular polymer insulating layer, which is not provided with the second electrode, and the intermediate electrode layer; the first extraction electrode is connected with the first electrode, and the second extraction electrode is connected with the intermediate electrode layer; or the first extraction electrode is connected with the first electrode or the intermediate electrode layer, a partial region of one side surface of the second high polymer insulating layer, which is provided with the second electrode, is in contact with the conductive shielding layer, and the second extraction electrode is connected with the second electrode or the conductive shielding layer;

Or the first friction power generation layer is a first high polymer insulating layer with a first electrode arranged on one side surface, and the second friction power generation layer comprises an intermediate electrode layer and a second high polymer insulating layer with a second electrode arranged on one side surface in a laminated manner; the friction interface is formed between the surface of the first high molecular polymer insulating layer, which is not provided with the first electrode, and the intermediate electrode layer and/or the surface of the second high molecular polymer insulating layer, which is not provided with the second electrode, and the intermediate electrode layer; the first extraction electrode is connected with the first electrode, and the second extraction electrode is connected with the intermediate electrode layer or the second electrode; or the first extraction electrode is connected with the intermediate electrode layer, and the second extraction electrode is connected with the second electrode; alternatively, the first extraction electrode is connected to the first electrode or the intermediate electrode layer or the second electrode, and the second extraction electrode is connected to the conductive shield layer.

13. The fetal heart fetal activity monitoring zone of claim 12, wherein the second extraction electrode connected to the conductive shield layer is a ground electrode.

14. Fetal heart and fetal movement monitoring belt according to claim 9 wherein at least one of the two surfaces forming the friction interface is provided with a raised formation.

15. The fetal heart fetal movement monitoring zone of claim 9, wherein the first extraction electrode and the second extraction electrode are connected with the first friction generating layer and the second friction generating layer, respectively, by riveting; or the first extraction electrode is connected with the first friction power generation layer or the second friction power generation layer in a riveting mode, and the second extraction electrode is connected with the conductive shielding layer in a riveting mode.

16. The fetal heart-fetal activity monitoring zone of claim 12, wherein the first polymeric insulating layer has a thickness of 50 to 1000 μ ι η and the second polymeric insulating layer has a thickness of 30 to 500 μ ι η.

17. The fetal heart fetal movement monitoring zone of claim 12, wherein the first polymer insulating layer is a rectangular film with an array of bumps distributed on the surface; wherein,

the distance between the outermost convex point close to the first long side of the rectangular film and the first long side is equal to the distance between the outermost convex point close to the second long side of the rectangular film and the second long side; the distance between the outermost convex point close to the first short side of the rectangular thin film and the first short side is equal to the distance between the outermost convex point close to the second short side of the rectangular thin film and the second short side.

18. The fetal heart-fetal activity monitoring zone of claim 17, wherein the distance between the outermost salient point near the first long side of the rectangular membrane and the first long side or the distance between the outermost salient point near the second long side of the rectangular membrane and the second long side is 0.1mm to 10 mm;

the distance between the outermost convex point close to the first short side of the rectangular thin film and the first short side or the distance between the outermost convex point close to the second short side of the rectangular thin film and the second short side is 0.1mm-10 mm.

19. A fetal heart fetal movement monitoring belt according to claim 17 or 18 wherein the height of the peaks in the array of peaks is between 0.01mm and 5mm and the pitch of the peaks is between 0.01mm and 30 mm.

20. Fetal heart fetal activity monitoring zone according to claim 2, wherein the fetal sound monitoring sensor is a PVDF piezoelectric film sensor.

21. Fetal heart and fetal movement monitoring belt according to claim 2, wherein the fetal heart and fetal movement monitoring components include at least one triboelectric and piezoelectric hybrid generator;

wherein a frictional electric component in the triboelectric and piezoelectric hybrid generator constitutes the fetal heart and fetal movement monitoring sensor, and a piezoelectric component in the triboelectric and piezoelectric hybrid generator constitutes the fetal sound monitoring sensor; the fetal heart and fetal movement monitoring sensor and the fetal sound monitoring sensor have a common electrode layer.

22. A fetal heart/fetal movement monitoring apparatus comprising the fetal heart/fetal movement monitoring zone of any one of claims 1-21 and further comprising: and the signal processing and analyzing module is connected with the fetal heart and fetal movement monitoring belt.

23. A fetal heart and fetal movement monitoring apparatus according to claim 22 wherein the signal processing and analyzing module is connected to the fetal heart and fetal movement monitoring means for processing and analyzing the fetal heart electrical signals and/or fetal movement electrical signals output from the fetal heart and fetal movement monitoring means, generating fetal heart analyzing electrical signals from the fetal heart electrical signals and/or generating fetal movement analyzing electrical signals from the fetal movement electrical signals.

24. Fetal heart-fetal movement monitoring apparatus according to claim 23, wherein the signal processing and analysis module comprises: the device comprises an amplifying module, a rectifying module, a filtering module, an analog-to-digital conversion module, a micro control module and a power supply module; wherein,

the amplification module is connected with the fetal heart and fetal movement monitoring component; the rectifying module is connected with the amplifying module; the filtering module is connected with the rectifying module; the analog-to-digital conversion module is connected with the filtering module; the micro control module is connected with the analog-to-digital conversion module; the power module is respectively connected with the amplifying module, the rectifying module, the filtering module, the analog-to-digital conversion module and the micro control module.

25. Fetal heart-fetal movement monitoring apparatus according to claim 22, wherein the signal processing and analysis module is disposed on an outer surface of the fetal heart-fetal movement monitoring band encapsulation or is disposed outside the fetal heart-fetal movement monitoring band, and is connected to the fetal heart-fetal movement monitoring band by a wire.

26. The fetal heart-fetal movement monitoring apparatus of claim 24, wherein the signal processing and analysis module further comprises: and the wireless transmitting circuit is connected with the micro control module.

27. A fetal heart fetal movement monitoring apparatus comprising the fetal heart fetal movement monitoring zone of any one of claims 2 or 20 or 21 and further comprising: and the signal processing and analyzing module is connected with the fetal heart and fetal movement monitoring belt.

28. A fetal heart and fetal movement monitoring apparatus according to claim 27 wherein said signal processing and analyzing module is respectively connected to said fetal heart and fetal movement monitoring sensor and said fetal sound monitoring sensor for processing and analyzing the fetal heart electrical signal and/or fetal movement electrical signal output from said fetal heart and fetal movement monitoring sensor and generating a fetal heart analyzing electrical signal from said fetal heart electrical signal and/or generating a fetal movement analyzing electrical signal from said fetal movement electrical signal and for processing and analyzing the fetal sound electrical signal output from said fetal sound monitoring sensor and generating a fetal sound analyzing electrical signal from said fetal sound electrical signal.

29. Fetal heart-fetal movement monitoring apparatus according to claim 28, wherein the signal processing and analysis module comprises: the device comprises an amplifying module, a rectifying module, a filtering module, an analog-to-digital conversion module, a micro control module and a power supply module; wherein,

the amplification module comprises a first amplification module and a second amplification module, the first amplification module is connected with the fetal heart and fetal movement monitoring sensor, and the second amplification module is connected with the fetal sound monitoring sensor; the rectifying module is connected with the first amplifying module; the filtering module comprises a first filtering module and a second filtering module, the first filtering module is connected with the rectifying module, and the second filtering module is connected with the second amplifying module; the analog-to-digital conversion module is respectively connected with the first filtering module and the second filtering module; the micro control module is connected with the analog-to-digital conversion module; the power module is respectively connected with the amplifying module, the rectifying module, the filtering module, the analog-to-digital conversion module and the micro control module.

30. A fetal heart and fetal movement monitoring apparatus according to claim 27 wherein the signal processing and analysis module is disposed on an outer surface of the fetal heart and fetal movement monitoring band enclosure or is disposed outside of the fetal heart and fetal movement monitoring band, connected to the fetal heart and fetal movement monitoring band by a wire.

31. The fetal heart-fetal movement monitoring device of claim 29, wherein the signal processing and analysis module further comprises: and the wireless transmitting circuit is connected with the micro control module.

32. A fetal heart fetal movement monitoring system comprising the fetal heart fetal movement monitoring zone of any one of claims 1-21 and further comprising: a terminal device;

33. A fetal heart and fetal movement monitoring system according to claim 32 wherein the terminal device is further adapted to process and analyze the fetal sound electrical signal outputted from the fetal heart and fetal movement monitoring component, and generate a fetal sound analysis electrical signal according to the fetal sound electrical signal for performing the judgment analysis.

34. A fetal heart/fetal movement monitoring system comprising the fetal heart/fetal movement monitoring apparatus of any one of claims 22-31 and further comprising: a terminal device;

The terminal equipment is connected with the signal processing and analyzing module through a wire or in a wireless communication mode and is used for judging and analyzing according to the fetal heart analysis electric signal and/or fetal movement analysis electric signal output by the signal processing and analyzing module.

35. A fetal heart and fetal movement monitoring system according to claim 34 wherein the terminal device is further configured to perform a judgment analysis based on the fetal sound analysis electrical signal outputted from the signal processing and analyzing module.