CN106539569A - Wearable physiological monitoring equipment and its antenna system - Google Patents

Abstract

The invention discloses a wearable physiological monitoring device and an antenna system thereof. Wherein, the antenna system includes: at least one transmitting antenna, the transmitting antenna is used to transmit the detection signal; at least one receiving antenna, the receiving antenna is used to receive the reflected signal after the detection signal passes through the target object; The gate switch is connected to at least one transmit antenna, and is used to control one transmit antenna in the at least one transmit antenna to transmit a detection signal, and/or the multiple gate switch is connected to at least one receive antenna, and is used to control at least one receive antenna. A receiving antenna of the antennas receives the reflected signal. The invention solves the technical problem in the related art that the physiological monitoring equipment adopts a dual-transmission and double-receiving antenna system, which causes mutual interference between the antennas and reduces the measurement accuracy of the physiological monitoring equipment.

Description

Wearable Physiological Monitoring Device and Its Antenna System

technical field

The invention relates to the field of antennas, in particular to a wearable physiological monitoring device and an antenna system thereof.

Background technique

With the continuous development of electronic technology, intelligent electronic physiological monitoring equipment (such as sphygmomanometer) is widely used in people's lives. Intelligent electronic physiological monitoring equipment can meet the needs of users to monitor the physiological index of the human body anytime and anywhere, and achieve the improvement of user experience. Effect. However, most of the physiological monitoring equipment in the related art adopts a dual-transmission and dual-reception antenna system, that is, the antenna system has two transmitting antennas and two receiving antennas, and the two transmitting antennas transmit signals at the same time, and the two receiving antennas receive signals at the same time. In the related art, the dual-transmitter and dual-receive antenna system used by the physiological monitoring equipment will cause the antennas to interfere with each other, thereby affecting the signal quality, reducing the measurement accuracy of the physiological monitoring equipment, and reducing the user experience.

Aiming at the problem in the related art that the physiological monitoring equipment uses a dual-transmission and dual-receiving antenna system, which causes mutual interference between the antennas and reduces the measurement accuracy of the physiological monitoring equipment, no effective solution has been proposed yet.

Contents of the invention

An embodiment of the present invention provides a wearable physiological monitoring device and its antenna system to at least solve the problem of the physiological monitoring device in the related art using a dual-transmission and double-receiving antenna system that causes mutual interference between the antennas and reduces the measurement accuracy of the physiological monitoring device. technical problem.

According to an aspect of an embodiment of the present invention, there is provided an antenna system for a wearable physiological monitoring device, including: at least one transmitting antenna, which is used to transmit detection signals; at least one receiving antenna, which is used to receive detection signals The reflected signal after passing through the target object; and at least one multi-way gating switch, the multi-way gating switch is connected with at least one transmitting antenna, and is used to control one of the transmitting antennas in the at least one transmitting antenna to transmit the detection signal, and/or multiple The road gate switch is connected with at least one receiving antenna, and is used for controlling one receiving antenna in the at least one receiving antenna to receive the reflected signal.

Further, at least one transmitting antenna includes: at least one transmitting antenna comprises: a first transmitting antenna and a second transmitting antenna, and at least one multiplexing switch comprises: a first multiplexing switch, wherein the first multiplexing The switches are respectively connected to the first transmitting antenna and the second transmitting antenna, and are used to control the first transmitting antenna or the second transmitting antenna to transmit detection signals.

Further, the antenna system further includes: a controller connected to at least one multiplexer switch, configured to control the at least one multiplexer switch to select one transmit antenna from at least one transmit antenna to transmit the probe signal, and/or to transmit the probe signal from the at least one transmit antenna One of the at least one receiving antennas is selected to receive the reflected signal.

Further, the antenna system is integrated on the flexible circuit board.

Further, the number of channels of the multiplexer is the same as the number of at least one transmitting antenna or at least one receiving antenna.

According to an aspect of an embodiment of the present invention, there is provided an antenna system for a wearable physiological monitoring device, including: a transmitting antenna for transmitting detection signals; at least one receiving antenna for receiving detection signals after passing through a target object the reflected signal; and a controller, respectively connected to the transmitting antenna and at least one receiving antenna, for controlling the transmitting antenna to transmit the detection signal, and controlling at least one receiving antenna to receive the reflected signal.

Further, the antenna system includes: at least two receiving antennas, the receiving antennas are used to receive the reflected signal after the detection signal passes through the target object; The antenna transmits the detection signal, and controls at least two receiving antennas to alternately receive the reflected signal.

Further, the antenna system is integrated on the flexible circuit board.

According to another aspect of the embodiments of the present invention, a wearable physiological monitoring device is also provided, including any antenna system in the embodiments of the present invention.

Further, the wearable physiological monitoring device is in the shape of a bracelet, wherein the antenna system surrounds the user's wrist for a preset length when the user wears the bracelet.

In the embodiment of the present invention, the antenna system of the wearable physiological monitoring device includes: at least one transmitting antenna, the transmitting antenna is used to transmit the detection signal; at least one receiving antenna, the receiving antenna is used to receive the reflected signal after the detection signal passes through the target object and at least one multiplexing switch, the multiplexing switch is connected to at least one transmitting antenna, and is used to control one of the transmitting antennas in the at least one transmitting antenna to transmit a detection signal, and/or the multiplexing switch is connected to at least one The receiving antennas are connected to control one of the at least one receiving antennas to receive the reflected signal. By setting the multi-channel gating switch to control only one transmitting antenna to transmit detection signals at the same time, and/or only one receiving antenna to receive reflected signals at the same time, the purpose of eliminating electromagnetic interference between antennas is achieved, thereby improving the physiological monitoring equipment. The measurement accuracy improves the technical effect of user experience, and then solves the technical problem that the physiological monitoring equipment adopts a dual-transmission and dual-reception antenna system in the related art, which causes mutual interference between the antennas and reduces the measurement accuracy of the physiological monitoring equipment.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention and constitute a part of the application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention. In the attached picture:

FIG. 1 is a schematic diagram of an antenna system of a wearable physiological monitoring device according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of an antenna system of an optional wearable physiological monitoring device according to an embodiment of the present invention;

3 is a schematic diagram of another optional antenna system of a wearable physiological monitoring device according to an embodiment of the present invention; and

Fig. 4 is a schematic diagram of an antenna system of another wearable physiological monitoring device according to an embodiment of the present invention.

detailed description

In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

According to an embodiment of the present invention, an embodiment of an antenna system of a wearable physiological monitoring device is provided. It should be noted that the antenna system in this embodiment can be set in any kind of wearable physiological monitoring device.

Fig. 1 is a schematic diagram of an antenna system of a wearable physiological monitoring device according to an embodiment of the present invention. As shown in Fig. 1, the antenna system 100 may include:

At least one transmitting antenna is used for transmitting detection signals.

The detection signal transmitted by the transmitting antenna may be a radio signal, and the detection signal may be used to detect a target object, wherein the target object may be a pulse. This embodiment preferably controls at least one transmitting antenna to alternately transmit detection signals, that is, only one transmission antenna transmits detection signals at the same time, which can eliminate signal interference caused by multiple transmission antennas simultaneously transmitting detection signals, thereby improving the measurement of physiological monitoring equipment. precision. The antenna system 100 shown in FIG. 1 includes two transmitting antennas, namely a first transmitting antenna 101 and a second transmitting antenna 102, and the first transmitting antenna 101 and the second transmitting antenna 102 alternately transmit detection signals.

At least one receiving antenna, the receiving antenna is used for receiving the reflection signal of the detection signal passing through the target object.

After the detection signal passes through the detected target object, such as the pulse, the detection signal will generate a Doppler frequency shift to generate a Doppler signal, and the reflected signal received by the receiving antenna is the Doppler signal. It should be noted that the reflected signal is very weak, and the physiological monitoring equipment in the prior art requires the user to constantly adjust the position so that the antenna system crosses the radial artery in order to obtain the signal with the largest amplitude. Preferably, the antenna system of this embodiment may include an electric tuner for adjusting the amplitude of the reflected signal, wherein the electric tuner may be a variable capacitor or a phase shifting unit. The antenna system of this embodiment uses an electric tuner to adjust the amplitude of the reflected signal, so that the user can obtain a signal with a relatively large amplitude without spending time adjusting the position of the physiological monitoring device, thereby achieving the effect of improving user experience.

This embodiment preferably controls at least one receiving antenna to receive the reflected signal alternately, that is, only one receiving antenna receives the reflected signal at the same time, which can eliminate the interference caused by multiple receiving antennas receiving the reflected signal at the same time, thereby improving the measurement of the physiological monitoring equipment. precision. The antenna system 100 shown in FIG. 1 includes two receiving antennas, namely a first receiving antenna 103 and a second receiving antenna 104, and the first receiving antenna 103 and the second receiving antenna 104 alternately receive reflected signals.

At least one multiplex switch, the multiplex switch is connected to at least one transmitting antenna, and is used to control one of the at least one transmit antenna to transmit a detection signal, and/or the multiplex switch is connected to at least one receive antenna connected to control one of the at least one receiving antenna to receive the reflected signal.

The multi-channel selection switch may be a switch for selecting and turning on one of the multiple channels. Optionally, there may be one or two multiplexing switches in this embodiment. When the antenna system includes a transmitting antenna, a plurality of receiving antennas or a receiving antenna and a plurality of transmitting antennas, the antenna system includes a multiplexing switch, and the multiplexing switch is connected to a plurality of receiving antennas or a plurality of transmitting antennas, It is used to control multiple receiving antennas or multiple transmitting antennas at the same time, only one receiving antenna receives the reflected signal or only one transmitting antenna transmits the detection signal. When the antenna system includes multiple transmitting antennas and multiple receiving antennas, the antenna system includes two multiplexing switches, one multiplexing switch is connected to multiple transmitting antennas, and is used to control only one transmitting antenna to transmit detection signals at the same time , another multi-way gating switch is connected to multiple receiving antennas, and is used to control only one receiving antenna to receive reflected signals at the same time.

Optionally, the number of channels of the multiplexer is the same as the number of at least one transmitting antenna or at least one receiving antenna. The number of channels of the multi-way switch is determined by the number of transmitting antennas or receiving antennas connected to it. For example, if the multi-way switch is connected to three transmitting antennas, the multi-way switch is a three-way switch.

The antenna system 100 shown in FIG. 1 includes two multiplexing switches, which are respectively a first multiplexing switch 105 and a second multiplexing switch 106, wherein the first multiplexing switch 105 and The first transmitting antenna 101 is connected with the second transmitting antenna 102, and is used to control the first transmitting antenna 101 or the second transmitting antenna 102 to transmit detection signals, and the second multiplexer 106 is connected with the first receiving antenna 103 and the second receiving antenna 103 respectively. The receiving antenna 104 is connected to control the first receiving antenna 103 or the second receiving antenna 104 to receive the reflected signal. The first multiplex switch 105 and the second multiplex switch 106 shown in FIG. 1 are preferably single-pole double-throw switches.

It should be noted that the antenna system shown in FIG. 1 is only a modification of the antenna system of the present invention. The number of transmitting antennas in FIG. 1 is not limited to 2, but may also be 3, 4 or more. The number of receiving antennas in Fig. 1 is not limited to 2, it can also be 3, 4 or more, the number of channels of the first multiplexer switch in Fig. 1 is the same as the number of transmitting antennas, the second The number of channels of the multiplexing switch is the same as the number of receiving antennas, here both the number of channels of the first multiplexing switch and the number of channels of the second multiplexing switch are 2.

Different from the situation where the antenna system shown in FIG. 1 includes two transmitting antennas, two receiving antennas, and two multiplexing switches, FIG. 2 is an optional wearable physiological monitoring device according to an embodiment of the present invention A schematic diagram of the antenna system, as shown in Figure 2, the antenna system 100 of this embodiment may include:

The first transmitting antenna 201 is used for transmitting detection signals.

The first receiving antenna 202 and the second receiving antenna 203 are used to alternately receive the reflection signal of the detection signal passing through the target object.

The first multiplex switch 204 is connected to the first receiving antenna 202 and the second receiving antenna 203 respectively, and is used to control the first receiving antenna 202 or the second receiving antenna 203 to receive reflected signals. Wherein, the first multiplex select switch 204 is preferably a single-pole double-throw switch.

The antenna system has only one transmitting antenna, and the first receiving antenna 202 and the second receiving antenna 203 are used to control the first receiving antenna 202 and the second receiving antenna 203 to receive reflected signals alternately, which can eliminate the simultaneous transmission of the first receiving antenna 202 and the second receiving antenna 203. The signal interference caused by the received reflected signal improves the measurement accuracy of the physiological monitoring equipment.

The antenna system shown in Figure 2 shows a situation where the antenna system includes a multiplex switch, and the antenna system shown in Figure 3 shows another situation where the antenna system includes a multiplex switch, wherein , FIG. 3 is a schematic diagram of another optional antenna system of a wearable physiological monitoring device according to an embodiment of the present invention. As shown in FIG. 3 , the antenna system 100 of this embodiment may include:

The first transmitting antenna 301 and the second transmitting antenna 302 are used to alternately transmit detection signals.

The first receiving antenna 303 is used to receive the reflection signal of the detection signal after passing through the target object.

The first multiplexing switch 304 is connected to the first transmitting antenna 301 and the second transmitting antenna 302 respectively, and is used for controlling the first transmitting antenna 301 or the second transmitting antenna 302 to transmit detection signals. Wherein, the first multiplex select switch 204 is preferably a single-pole double-throw switch.

The antenna system has only one receiving antenna, and the first transmitting antenna 301 and the second transmitting antenna 302 are used to control the first transmitting antenna 301 and the second transmitting antenna 302 to transmit detection signals alternately, which can eliminate the simultaneous The signal interference caused by transmitting the detection signal improves the measurement accuracy of the physiological monitoring equipment.

It should be noted that the antenna systems shown in Figures 1 to 3 only show the connection relationship between the transmitting antenna or the receiving antenna and the multiplex switch, and other structures in the antenna system are not shown in Figures 1 to 3 , but it does not mean that the antenna system of this embodiment does not include other structures.

It can be seen from FIG. 1 to FIG. 3 that there may be one or multiple transmitting antennas in the antenna system of this embodiment. When the antenna system includes a plurality of transmitting antennas, these transmitting antennas are connected to a multiplex switch, wherein the number of channels of the multiplex switch is the same as the number of transmit antennas. The antenna system utilizes the multi-channel gating switch to control multiple transmitting antennas to transmit detection signals at the same time only from one of the transmitting antennas. There may be one receiving antenna or multiple receiving antennas in the antenna system of this embodiment. When multiple receiving antennas are included in the antenna system, these receiving antennas are connected to a multiplex switch, wherein the number of channels of the multiplex switch is the same as the number of receive antennas, and the multiplex switch is used to Control multiple receiving antennas at the same time only one of the receiving antennas receives the reflected signal. This embodiment can eliminate the signal interference caused by multiple transmitting antennas or multiple receiving antennas transmitting or receiving signals simultaneously by setting multiplex switches for multiple transmitting antennas and multiple receiving antennas, thereby improving the measurement accuracy of physiological monitoring equipment , to improve the effect of user experience.

As an optional embodiment, the antenna system of this embodiment may further include: a controller connected to at least one multiplexer switch, and used to control at least one multiplexer switch to select from at least one transmit antenna A transmitting antenna transmits a detection signal, and/or a receiving antenna selected from at least one receiving antenna receives a reflected signal. The controller may send a control signal to at least one multiplexer switch, and the control signal may carry the frequency and amplitude of the detection signal transmitted by the transmitting antenna or the receiving frequency of the reflected signal received by the receiving antenna. It should be noted that if the antenna system includes multiple multiplex switches, the controller needs to be connected to the multiple multiplex switches respectively to control the multiple multiplex switches separately, so as to control the same time Only one transmitting antenna transmits the detection signal, or only one receiving antenna receives the reflected signal at the same time. As the control core of the antenna system, the controller can be a programmable logic controller or a single-chip microcomputer.

According to the embodiment of the present invention, another embodiment of the antenna system of a wearable physiological monitoring device is also provided. It should be noted that the antenna system in this embodiment can be set in any kind of wearable physiological monitoring device .

FIG. 4 is a schematic diagram of an antenna system of another wearable physiological monitoring device according to an embodiment of the present invention. As shown in FIG. 4, the antenna system 200 may include:

The transmitting antenna 401 is used for transmitting detection signals. The detection signal transmitted by the transmitting antenna 401 may be a radio signal, and the detection signal may be used to detect a target object, wherein the target object may be a pulse.

At least one receiving antenna, the receiving antenna is used for receiving the reflection signal of the detection signal passing through the target object. The antenna system shown in FIG. 4 shows a situation including two receiving antennas, namely a first receiving antenna 402 and a second receiving antenna 403 .

The controller 404 is connected to the transmitting antenna and at least one receiving antenna respectively, and is used for controlling the transmitting antenna to transmit the detection signal, and controlling at least one receiving antenna to receive the reflected signal. In the antenna system shown in FIG. 4 , the controller 404 is respectively connected to the transmitting antenna 401, the first receiving antenna 402 and the second receiving antenna 403, and is used to control the transmitting antenna 401 to transmit detection signals, and to control the first receiving antenna 402 and the second receiving antenna 402. The two receiving antennas 403 alternately receive reflected signals. The controller in this embodiment serves as the control core of the antenna system, and may be a programmable logic controller or a single-chip microcomputer.

Optionally, the antenna system of this embodiment may include: at least two receiving antennas, the receiving antennas are used to receive the reflected signal after the detection signal passes through the target object; and the controller is connected to the transmitting antenna and the at least two receiving antennas respectively , for controlling the transmitting antenna to transmit the detection signal, and controlling at least two receiving antennas to alternately receive the reflected signal. The receiving antenna in the antenna system of this embodiment can be one or multiple. When there are multiple receiving antennas, the controller is used to control multiple receiving antennas to receive reflected signals alternately, so that only one receiving antenna receives reflected signals at the same time. The reflected signal can achieve the effect of reducing signal interference and improving the measurement accuracy of physiological monitoring equipment.

The antenna system in this embodiment reduces the signal interference caused by the antenna system due to multiple transmitting antennas transmitting detection signals simultaneously by setting one transmitting antenna, and applies the antenna system with one transmitting antenna to physiological monitoring equipment, which can improve physiological The effect of monitoring the measurement accuracy of the device. At the same time, the antenna system in this embodiment controls at least two receiving antennas to receive reflected signals alternately by setting the controller, so that only one receiving antenna receives signals in the antenna system at the same time, and signal interference can also be avoided, thereby improving the physiological monitoring equipment. The accuracy of the measurement improves the effect of user experience.

Optionally, the antenna system in this embodiment may further include: a transmitting unit and a receiving unit, specifically:

The transmitting unit is respectively connected with the transmitting antenna and the controller, and is used to generate a detection signal according to the control signal of the controller, and send the detection signal to the transmitting antenna for transmission, wherein the control signal of the controller may carry the transmitting antenna to transmit detection Signal frequency, amplitude and other parameters. Optionally, the transmitting unit of this embodiment may include the following modules: a signal modulation module and a signal sending module, wherein:

The signal modulation module is connected with the controller, and is used for performing signal modulation processing according to the control signal to generate detection signals. The signal modulation may include frequency modulation, amplitude modulation, or phase modulation, and accordingly, the control signal may carry the control parameters of the above-mentioned modulation processing. The signal sending module is respectively connected with the signal modulating module and the transmitting antenna, and is used for sending the detection signal to the transmitting antenna for transmission.

The connection between the signal sending module and the transmitting antenna may be a wired connection or a wireless connection. When there is a wireless connection between the signal sending module and the transmitting antenna, the signal sending module may include a wireless communication module, wherein the wireless communication module may be a WIFI module, a Bluetooth module, or the like.

The receiving unit is respectively connected with the controller and the receiving antenna, and is used for signal processing the received reflection signal, and sending the processed reflection signal to the controller. The processing process of the reflected signal by the receiving unit may include signal demodulation, signal filtering, signal amplification, and the like. Specifically, the receiving unit may include the following modules: a signal receiving module, a signal demodulation module and a filtering and amplifying module, wherein:

The signal receiving module is connected with the receiving antenna for receiving reflected signals. The connection between the signal receiving module and the receiving antenna can be a wired connection or a wireless connection. When the signal receiving module is wirelessly connected to the receiving antenna, the signal receiving module may include a wireless communication module, wherein the wireless communication module may be a WIFI module, a Bluetooth module, or the like.

The signal demodulation module is connected with the signal receiving module, and is used for demodulating the reflected signal. The demodulation processing of the reflected signal by the signal demodulation module corresponds to the modulation processing of the detection signal by the signal modulation module. The demodulation process performed by the signal demodulation module on the reflected signal may include obtaining information such as frequency, amplitude, and phase of the reflected signal.

The filtering and amplifying module is respectively connected with the signal demodulation module and the controller, and is used for filtering and amplifying the demodulated reflected signal, and sending the filtered and amplified reflected signal to the controller. The filtering and amplifying module in this embodiment can be a whole module, or can be composed of a plurality of dispersed sub-modules, and the sub-modules respectively have functions of filtering and signal amplifying. A filter can be used for signal filtering, and an amplifier circuit can be used for signal amplification. In this embodiment, the filtering and amplification module is used to amplify and filter the reflection signal, which can improve the accuracy of the reflection signal received by the controller, which is conducive to improving the measurement accuracy of the physiological monitoring equipment, thereby achieving the effect of improving user experience.

It should be noted that there is only one transmitting unit and one receiving unit in the embodiment of the present invention. In the antenna system of this embodiment, by setting the multi-channel strobe switch, only one transmitting antenna transmits the detection signal at the same time, and only one receiving antenna receives the reflected signal, so that only one transmitting unit and one receiving unit are required to be set in the antenna system. The transmission and reception of the antenna system signal is completed, the hardware structure of the antenna system is simplified, and the hardware cost of the antenna system is greatly saved.

As an optional embodiment, the antenna system in the embodiment of the present invention can be integrated on a flexible circuit board, which can ensure that the performance of the internal antenna system will not be affected when the wearable physiological monitoring device is in any form. Influence, the flexible circuit board can allow the wearable physiological monitoring equipment to be made into any shape, such as wrist ring, foot ring, etc., which can reduce the volume of the device, facilitate the user to carry and use, and greatly improve the user experience.

The antenna system of the wearable physiological monitoring device in the embodiment of the present invention includes at least one multi-channel gating switch, which can control only one transmitting antenna to transmit detection signals at the same time, or only one receiving antenna to receive reflected signals at the same time. The signal solves the technical problem in the related art that the physiological monitoring equipment uses a dual-transmission and double-receiving antenna system, which causes mutual interference between the antennas and reduces the measurement accuracy of the physiological monitoring equipment. At the same time, the antenna system only needs to set one transmitting unit and one receiving unit to meet the requirements of transmitting and receiving, which simplifies the hardware structure and saves the hardware cost. The antenna system of this embodiment can improve the measurement accuracy of the physiological monitoring equipment and greatly improve the user experience of the physiological monitoring equipment.

According to the embodiment of the present invention, an embodiment of a wearable physiological monitoring device is also provided. It should be noted that the wearable physiological monitoring device of this embodiment may include any antenna system in the embodiment of the present invention . The antenna system has been introduced in detail in the foregoing embodiments of the present invention, and will not be repeated here.

Optionally, the wearable physiological monitoring device in this embodiment may be in the shape of a bracelet, wherein the antenna system surrounds the user's wrist for a preset length when the user wears the bracelet. The preset length can be adjusted according to the size of the wristband. In this embodiment, the antenna system is preferably set to wrap half a circle around the wrist when the user wears the bracelet, so that the antenna system can intersect with the user's radial artery to achieve the purpose of obtaining effective signals. It should be noted that the wearable physiological monitoring device in this embodiment can also have other shapes, and the present invention does not specifically limit the shape of the wearable physiological monitoring device, and it can be made into any shape according to actual needs.

Optionally, the wearable physiological monitoring device of this embodiment may further include a communication module, which may be a wireless communication module, such as WIFI, Bluetooth, and the like. Through the communication module, the wearable physiological monitoring device of this embodiment can communicate with the external control device, including accepting control instructions from the external control device, or sending the measured physiological index to the external control device for analysis and storage. Wherein, the external control device may be an intelligent mobile terminal, such as a smart phone, a tablet computer, and the like.

The wearable physiological monitoring device in this embodiment can use any antenna system in the embodiment of the present invention to obtain effective transmission signals even when the antenna system is not in an optimal position. The wearable physiological monitoring device of this embodiment can not only save the time for the user to adjust the position of the antenna system before use, but also improve the measurement accuracy of the physiological monitoring device, which greatly improves the user experience.

In the above-mentioned embodiments of the present invention, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to relevant descriptions of other embodiments. In the several embodiments provided in this application, it should be understood that the disclosed technical content can be realized in other ways. The above is only a preferred embodiment of the present invention, it should be pointed out that, for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.

Claims (10)

1. An antenna system of a wearable physiological monitoring device, characterized in that, comprising: at least one transmit antenna for transmitting sounding signals; At least one receiving antenna, the receiving antenna is used to receive the reflected signal of the detection signal after passing through the target object; and at least one multiplex switch, the multiplex switch is connected to the at least one transmit antenna, and is used to control one transmit antenna in the at least one transmit antenna to transmit the detection signal, and/or the The multiplex switch is connected to the at least one receiving antenna, and is used for controlling one receiving antenna in the at least one receiving antenna to receive the reflected signal. 2. Antenna system according to claim 1, characterized in that, The at least one transmitting antenna includes: a first transmitting antenna and a second transmitting antenna, The at least one multiplexing switch includes: a first multiplexing switch, Wherein, the first multiplexing switch is respectively connected to the first transmitting antenna and the second transmitting antenna, and is used to control the first transmitting antenna or the second transmitting antenna to transmit the detection signal . 3. The antenna system according to claim 1, wherein the antenna system further comprises: a controller, connected to the at least one multiplexing switch, configured to control the at least one multiplexing switch to select a transmitting antenna from the at least one transmitting antenna to transmit the detection signal, and/or transmit the detection signal from Selecting one receiving antenna from the at least one receiving antenna to receive the reflected signal. 4. The antenna system according to any one of claims 1 to 3, characterized in that the antenna system is integrated on a flexible circuit board. 5 . The antenna system according to claim 1 , wherein the number of channels of the multiplexing switch is the same as the number of the at least one transmitting antenna or the at least one receiving antenna. 6. An antenna system for a wearable physiological monitoring device, characterized in that it comprises: a transmitting antenna for transmitting a detection signal; At least one receiving antenna, the receiving antenna is used to receive the reflected signal of the detection signal after passing through the target object; and The controller is respectively connected to the transmitting antenna and the at least one receiving antenna, and is configured to control the transmitting antenna to transmit the detection signal, and control the at least one receiving antenna to receive the reflected signal. 7. The antenna system according to claim 6, wherein the antenna system comprises: At least two receiving antennas, the receiving antennas are used to receive the reflected signal of the detection signal after passing through the target object; and The controller is connected to the transmitting antenna and the at least two receiving antennas respectively, and is used for controlling the transmitting antenna to transmit the detection signal, and controlling the at least two receiving antennas to alternately receive the reflected signal. 8. The antenna system according to claim 6 or 7, characterized in that the antenna system is integrated on a flexible circuit board. 9. A wearable physiological monitoring device, comprising the antenna system according to any one of claims 1-8. 10. The wearable physiological monitoring device according to claim 9, wherein the wearable physiological monitoring device is in the shape of a wristband, wherein the antenna system surrounds the user's wrist when the user wears the wristband preset length.