KR20190057771A - Wearable device for notifying signs of defecation - Google Patents

Abstract

This embodiment includes a sensor unit including at least one acoustic sensor for measuring a bowel sound signal in a user's abdomen; A filter unit for removing noise due to heartbeat or respiration in the long-term signal; A processor for detecting a bowel symptom by comparing the number of long sounds with the predetermined threshold after detecting the number of long sounds from the long sound signal from which the noise is removed; A communication module for transmitting information on the defecation symptom to an external device; And a storage unit for storing the long sound signal and the number of long sounds.

Description

[0002] WEARABLE DEVICE FOR NOTIFYING SIGNS OF DEFECATION [0003]

The present invention relates to a wearable device for notifying a defecation symptom, and more particularly, to a wearable device for informing a user of a bowel movement symptom by monitoring the number of long sounds of a user.

The number of patients with dementia continues to increase as they enter the aging society. According to the report of the Central Dementia Center of the Ministry of Health and Welfare of the Republic of Korea ('Korea Dementia Status 2016'), the number of dementia patients in Korea is estimated to reach 3 million in 2060. Accordingly, various technologies for assisting dementia patients have been actively researched and developed.

Physiological problems that are not a problem for the general public can also be a serious problem for demented patients. Particularly, patients with severe dementia experience various problems such as defecation related problems, for example, when the defecation reflex is not properly performed, the obliterating desire is needed, . Therefore, patients with severe dementia wear diapers at all times and need aids in the care of the caregiver.

However, there is a problem that the care work of the guardian is unsanitary and labor intensity is high. Therefore, it is necessary to develop a variety of techniques to induce the patient to perform his / her own defecation activities or to reduce the intensity of the work of the defecation auxiliary work of the caregiver.

Based on this necessity, the present embodiment provides a wearable device that monitors the number of intestinal sounds of a user and discriminates and informs the user of the defecation symptom based on the number of intestinal sounds.

According to an aspect of the present invention, there is provided a wearable device for indicating a symptom of a bowel movement of a user, the wearable device comprising: a sensor part including at least one acoustic sensor for measuring a bowel sound signal in the abdomen of the user; A filter unit for removing noise due to heartbeat or respiration in the long-term signal; A processor for detecting a bowel symptom by comparing the number of long sounds with the predetermined threshold after detecting the number of long sounds from the long sound signal from which the noise is removed; A communication module for transmitting information on the defecation symptom to an external device; And a storage unit for storing the long sound signal and the number of long sounds.

According to another aspect of the present invention, there is provided a wearable device for indicating a user's bowel movement symptom, comprising: at least one acoustic sensor for measuring a bowel sound signal in a user's abdomen; A sensor unit including at least one motion sensor; A filter unit for removing noise due to heartbeat or respiration in each of the long sound signal and the abdominal motion signal; Removing the friction of the long sound signal from which noise has been removed using the noise canceled abdominal motion signal and comparing the number of long sounds detected from the long sound signal from which the stimulus is removed to a predetermined threshold value, A processor for identifying the processor; A communication module for transmitting information on the defecation symptom to an external device; And a storage unit for storing the long sound signal, the abdominal motion signal, and the number of long sounds.

The wearable device according to the present embodiment has an effect of enabling the user to predict the defecation time point by notifying the user of the defecation indications determined based on the number of long sounds of the user by various methods such as visual, auditory, and tactile sense.

FIG. 1 is a diagram showing the result of measuring a long sound signal immediately after defecation and a long sound signal before defecation respectively.
2 is a view showing a configuration of a wearable device according to one aspect of the present embodiment.
3 is a view showing the position of the acoustic sensor shown in Fig.
4 is a view showing a method of operating a wearable device according to an aspect of the present embodiment.
5 is a view showing a configuration of a wearable device according to another aspect of the present embodiment.
6 is a view showing the position of the motion sensor shown in Fig.
7 is a view showing a method of operating a wearable device according to another aspect of the present embodiment.
8 is a diagram specifically illustrating a process of removing the friction of the long-period signal shown in FIG.
9 is a view showing a specific example of the wearable device according to the present embodiment.
10 is a view showing an example of wearing the wearable device shown in Fig.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. Throughout the specification, when an element is referred to as being "comprising" or "comprising", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise . In addition, '... The term "module" refers to a unit that processes at least one function or operation, which may be implemented in hardware, software, or a combination of hardware and software.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a diagram showing the result of measuring a long sound signal immediately after defecation and a long sound signal before defecation respectively.

Specifically, Fig. 1 (a) shows a long sound signal measured immediately after defecation, that is, at a time point not related to defecation, and Fig. 1 (b) shows a long sound signal measured immediately before defecation, .

In the example of Fig. 1, the bowel sound signal is measured by a polyvinylidene fluoride (PVDF) sensor, which is an acoustic sensor, for 30 minutes at the sigmoid colon position of the user. Here, it is assumed that the number of peaks detected from each measurement result is equal to the number of long sounds.

In the example of Fig. 1, the abscissa represents the measurement time of the long sound signal, and the ordinate represents the relative size of the long sound signal.

1 (a) and FIG. 1 (b), it can be seen that the number of long sounds immediately before bowel movements is significantly increased compared with that immediately after bowel movements.

Table 2 shows the average number of long tongues measured in two subjects for a total of 25 hours over 22 times for 30 minutes each time.

The long sound is an important part of the examination of patients who complain of digestive system symptoms such as abdominal pain and diarrhea, and most doctors have to record the findings on the abdominal examination of the patient. In addition, as the computing technology rapidly develops and a variety of high sensitivity sensors are developed, various researches have been actively conducted to measure and analyze long sounds and to derive meaningful results.

Referring to Table 1, it can be seen that the average number of long sounds immediately before defecation is three times more than that at the time of defecation independent (ie, after bowel movement). These results indicate that there is a correlation between the number of long-term sounds and the defecation symptom, which can be used to predict the defecation symptom.

Therefore, an embodiment of the present invention is to provide a wearable device for determining a symptom of defecation by measuring the number of long sounds of a user.

2 to 4, a description will be made in detail of a wearable device for notifying a bowel movement symptom according to an aspect of the present invention.

2 is a view showing a configuration of a wearable device according to one aspect of the present embodiment.

2, the wearable device 200 may include a sensor unit 210, a control unit 230, a communication module 250, and a storage unit 270. In addition, the wearable device 200 may further include a user interface 290.

The sensor unit 210,

The sensor unit 210 may include at least one acoustic sensor 211 as a component necessary for measuring a user's biosignal.

The acoustic sensor 211 is a sensor that converts a physical sound into an electrical signal and transmits a user's long sound signal in real time while the power of the wearable device 200 is applied . The acoustic sensor 211 includes an ultrathin film piezoelectric microphone using a polyvinylidene fluoride (PVDF) film (hereinafter referred to as a PVDF acoustic sensor), but is not limited thereto.

Alternatively, the sound sensor 211 measures a long sound signal of the user by a predetermined period set by the user through a user interface 290 to be described later.

The acoustic sensor 211 is preferably disposed at a position close to the sigmoid colon of the user, as shown in Fig.

The long sound signal of the user measured by the sound sensor 211 may be stored in the storage unit 270 and may be used for discrimination of the defecation symptom through a filtering process by the control unit 230 to be described later.

The controller 230,

The control unit 230 may include a filter unit 231 and a processor 233 as components necessary to control the overall operation of the wearable device 200 and to detect the number of long sounds and to catch the bowel symptom.

The filter unit 231 functions to remove a direct current (DC) component from a living body signal measured by the sensor unit 210 and noise caused by heartbeat or respiration.

The filter unit 231 may be implemented with a high pass filter (HPF) to remove low frequency noise.

The processor 233 can perform a signal processing operation, specifically, an operation such as a partial sum operation, a peak detection, and the like at a predetermined time interval with respect to the measured long sound signal. Here, the subtotal operation means an operation of summing long sound signals at predetermined time intervals (for example, at intervals of 3 seconds) in consideration of occurrence of a long sound at an interval of typically 2 seconds to 5 seconds.

Further, the processor 233 can detect the defecation symptom by comparing the peak count with the predetermined threshold stored in the storage unit 270, and detecting the defecation symptom.

The processor 233 may drive firmware to control all operations of the wearable device 200 and may be implemented by a microprocessor or a central processing unit (CPU).

The signal processing and defibrillation symptom discrimination operation performed by the processor 233 will be described later in detail with reference to FIG.

The communication module (250)

The communication module 250 is a component necessary for transmitting information on a defecation symptom (hereinafter referred to as defecation symptom information) determined on the basis of a prolonged sound signal to an external device, and includes an LTE module, a Wi-Fi module, a Bluetooth module And the like.

Specifically, the communication module 250 transmits the defibrillation symptom information generated by the controller 230 to the user or his or her guardian through wired or wireless communication (e.g., Bluetooth, ZigBee, NFC (Near Field Communication) To an electronic device (e.g., a smart phone). The defecation symptom information transmitted to the electronic device is transmitted to the user through various functions of the electronic device in various ways such as a time (e.g., a warning phrase), a hearing (e.g., a notification bell), a tactile Can be output.

In the storage unit 270,

The storage unit 270 is a nonvolatile semiconductor memory device (e.g., NAND flash, RRAM (Resistive RAM) or the like) or a removable storage device (not shown) for storing the long sound signal, user information used for discriminating the defecation symptom, Media (e.g., SD card, etc.), and the like.

User interface 290,

The user interface 290 may include an input interface and / or an output interface as components necessary for receiving the user information used for distinguishing the defecation symptom and outputting the defecation symptom information.

The user interface 290 may include an input interface (e.g., a physical button, a touch pad, etc.) for inputting user information such as sex, age, A user of the wearable device 200 can select a measurement mode (e.g., continuous measurement, 30-minute period measurement, 1-hour period measurement, etc.) of the long-term signal through the input interface.

In addition, the user interface 290 may include an output interface (e.g., an LCD / LED / OLED display, a vibrator, etc.) for outputting defibrillation symptom information.

4 is a view showing a method of operating a wearable device according to an aspect of the present embodiment.

Hereinafter, a description will be made in detail of the process of determining a bowel symptom of a wearable device according to an aspect of the present invention with reference to FIG.

In step S410, the acoustic sensor 211 measures the user's long sound signal and transmits it to the filter unit 231. [ The acoustic sensor 211 may include a PVDF acoustic sensor and measures a long sound signal near the S phase colon of the user.

In step S420, the filter unit 231 receives a long sound signal from the sound sensor 211 and filters it to remove a DC component and noise due to heartbeat, respiration, or the like. The filter unit 231 may be implemented with a high pass filter (HPF) to remove low frequency noise.

In step S430, the processor 233 generates a partial sum signal (hereinafter referred to as a " partial additive sound signal ") at a predetermined time interval from the filtered long sound signal, in order to facilitate peak detection of the long sound signal. According to the present embodiment, the processor 233 may generate a subtotal prolonged signal using a Fourier series.

In step S440, the processor 233 detects the number of peaks of the subtended long sound signal and measures the number of long sounds. As described above with reference to FIG. 1, it is assumed that the number of long peaks in the present embodiment is equal to the number of long notes.

The processor 233 measures the number of long sounds continuously or periodically in accordance with the measurement mode selected by the user. The measured number of long sounds is stored in the storage unit 270.

In step S450, the processor 233 determines the defecation symptom based on the measured number of long sounds.

Specifically, the processor 233 compares the measured number of long sounds with a predetermined threshold to determine a defecation symptom. Here, the threshold value used for discriminating the defecation symptom may be preset in consideration of the sex, age, etc. of a person and stored in the storage unit 270. Specific examples are shown in Table 2. However, it should be noted that the threshold values in Table 2 are exemplary and the present embodiment is not limited thereto.

Considering that the amount of physical activity and the intestinal motility are approximately proportional to each other, it can be seen from Table 2 that the threshold value for discriminating the bowel movement symptom can be set to be relatively higher than that of the female for the younger age group and for the older age group.

In addition, the threshold value used for distinguishing the bowel movement symptom may be updated based on the number of long sounds measured by the wearer during the operation of the wearable device 200. For example, the processor 233 may update the initial threshold value to a value obtained by multiplying the average of the number of long sounds of the user stored in the storage unit 270 by a predetermined constant. According to this embodiment, the constant used for the threshold update may be three.

Meanwhile, the processor 233 may manage a threshold value for each user based on the user information input through the user interface 290. [ This is particularly useful when a plurality of users use the wearable device 200 according to the present embodiment.

Table 3 shows specific examples of setting, updating, and managing threshold values. However, it should be noted that the threshold values in Table 3 are illustrative and do not limit the present embodiment.

Referring to Table 3, the threshold value is initially set for each user (i.e., users A, B, C), and it can be confirmed that the threshold is updated to a value obtained by multiplying the average number of long sounds by three.

If it is determined in step S450 that the number of long sounds currently measured exceeds a predetermined threshold value (Yes), the processor 233 determines that the user is in the state immediately before defecation and transmits a defecation warning signal to the communication module 250 or the user interface (290), and the process may proceed to step S460.

In step S460, the communication module 250 may transmit the received defecation warning signal to the external electronic device through wireless communication. The defecation symptom information transmitted to the external electronic device can be output to the user through a variety of functions of the external electronic device such as visual, auditory, tactile, and the like.

Alternatively, in step S460, the user interface 290 may output the received defecation warning signal using a display device, a vibration device, or the like, thereby notifying the user or the guardian thereof of the state immediately before defecation.

If the number of long sounds is less than or equal to the predetermined threshold value (NO), the processor 233 determines that the user is in a post-defecation state (i.e., normal state) To the user interface 290, and may proceed to step S470.

Then, in step S470, the communication module 250 may transmit the received defibrillation normal signal to the external electronic device via wireless communication.

Alternatively, in step S470, the user interface 290 may output the received defecation normal signal using a display device, a vibration device, or the like.

In summary, the wearable device 200 according to one aspect of the present invention can measure the number of long sounds using the long sound signal of the user, discriminate signs of bowel movement based on the number of long sounds, and perform an operation of notifying the user .

Although it is described in FIG. 4 that a plurality of processes are performed sequentially, this is merely illustrative of the technical idea of this embodiment. In other words, the person skilled in the art will understand that the order described in FIG. 4 may be changed or a part of the plurality of processes may be performed in parallel without departing from the essential characteristics of the present embodiment And FIG. 4 is not limited to the time-series order.

Meanwhile, the processes shown in FIG. 4 can be implemented as computer-readable codes on a computer-readable recording medium. A computer-readable recording medium includes all kinds of recording apparatuses in which data that can be read by a computer system is stored. That is, a computer-readable recording medium includes a magnetic storage medium (e.g., ROM, floppy disk, hard disk, etc.), an optical reading medium (e.g., CD ROM, And the like). The computer-readable recording medium may also be distributed over a networked computer system so that computer readable code can be stored and executed in a distributed manner.

5 to 8, a description will be made in detail of a wearable device for notifying a defecation symptom according to another aspect of the present embodiment.

5 is a view showing a configuration of a wearable device according to another aspect of the present embodiment.

The wearable device 500 shown in Fig. 5 uses the abdominal motion signal measured by the motion sensor 513 to remove the noise due to the abdominal motion from the measured long sound signal. Thus, the wearable device 500 shown in Fig. .

Hereinafter, the wearable device 500 according to another aspect of the present embodiment will be described, focusing on such differences.

5, the wearable device 500 may include a sensor unit 510, a control unit 530, a communication module 550, a storage unit 570, and a user interface 590.

The sensor unit 510 includes:

The sensor unit 510 includes at least one acoustic sensor 511 and at least one motion sensor 513 as components necessary for measuring a long sound signal and a abdominal motion signal of a user .

The acoustic sensor 511 measures the user's long-term signal in real-time or on a predetermined period set by the user through a user interface 590 to be described later. The acoustic sensor 511 includes, but is not necessarily limited to, an ultra-thin piezoelectric microphone (hereinafter referred to as a PVDF acoustic sensor) using a polyvinylidene fluoride (PVDF) film. The acoustic sensor 511 is preferably disposed at a position close to the sigmoid colon of the user as described above with reference to Fig.

The motion sensor 513 measures a user's abdominal motion signal in real time or on a predetermined period set by the user through a user interface 590 to be described later. Motion sensor 513 includes, but is not necessarily limited to, an electromyogram (EMG) sensor. The movement sensor 513 is preferably disposed at a vermiform appendix position and a left and right flank area of the user as shown in FIG.

The user's abdominal motion signal measured by the motion sensor 513 may be stored in the storage unit 570 and may be used to remove friction of a long sound signal through a filtering process by a control unit 530, do.

Friction refers to a kind of noise component included in the long sound signal due to abdominal motion. Specifically, the sound generated by the movement of the user's abdomen, such as relaxation or contraction, is measured by the acoustic sensor 511 together with the long sound. The purpose of this embodiment is to determine the signs of bowel movement by measuring the number of long-term sounds of the user, so that the component due to abdominal motion in the measured long-term signal becomes noise. Therefore, the processor 533 can more precisely measure the number of long sounds by removing the friction of the long sound signal by using the motion signal.

The control unit 530

The control unit 530 may include a filter unit 531 and a processor 533 as components necessary for controlling the overall operation of the wearable device 500 and detecting the number of long sounds and capturing the defecation symptom.

The filter unit 531 functions to remove a direct current (DC) component and noise due to a heartbeat or respiration from a living body signal measured by the sensor unit 510. [

The filter unit 531 may be implemented as a high pass filter (HPF) to remove low frequency noise.

The processor 533 may perform a signal processing operation, specifically, an operation such as partial sum operation, elimination of friction, peak detection, and the like at a predetermined time interval with respect to the measured bio-signal.

The processor 533 may drive firmware to control all operations of the wearable device 500 and may be implemented by a microprocessor or a central processing unit (CPU).

The signal processing and defecation symptom discrimination operation performed by the processor 533 will be described later in detail with reference to FIG.

The communication module (550)

The communication module 550 is a component necessary for transmitting information on a defecation symptom (hereinafter referred to as defecation symptom information) determined on the basis of the measured biomedical signal to an external device. The communication module 550 includes an LTE module, a Wi-Fi module, Bluetooth) module and the like.

Specifically, the communication module 550 transmits the defibrillation symptom information generated by the control unit 530 to the user or the user through wired or wireless communication (e.g., Bluetooth, ZigBee, NFC, etc.) To a protector's electronic device (for example, a smart phone). The defecation symptom information transmitted to the electronic device can be transmitted to the user through various functions of the electronic device in various ways such as a time (e.g., a warning phrase), a hearing (e.g., a notification bell), a tactile Lt; / RTI >

The storage unit 570

The storage unit 570 is a nonvolatile semiconductor memory device (for example, NAND flash, RRAM (Resistive RAM), etc.) or a detachable type memory device A storage medium (e.g., an SD card or the like), or the like.

The user interface (590)

The user interface 590 may include an input interface and / or an output interface as components necessary for receiving the user information used for discriminating the defecation symptom and outputting the defecation symptom information.

The user can select the measurement mode of the long sound signal (eg, continuous measurement, 30-minute period measurement, 1-hour period measurement, etc.) through the input interface.

Further, the user can receive the defecation indications information through the output interface.

FIG. 7 is a view showing a method of operating the wearable device according to another aspect of the present invention, and FIG. 8 is a diagram specifically illustrating a process of removing a friction of a long sound signal shown in FIG.

7, the acoustic sensor 511 measures a long sound signal of the user and transmits it to the filter unit 531. The motion sensor 513 measures the abdominal motion signal of the user and outputs it to the filter unit 531 ).

The acoustic sensor 511 may include a PVDF acoustic sensor and measures a long sound signal near the S phase colon of the user.

The motion sensor 513 may include an EMG motion sensor and measures abdominal motion signals in a vermiform appendix position and a left and right flank area of the user.

In step S720, the filter unit 531 filters the bio-signals (i.e., the long sound signal and the abdominal motion signal) transmitted from the acoustic sensor 511 and the motion sensor 513 to generate a DC component and a heartbeat, And the like. The filter section 531 may be implemented with a high pass filter (HPF) to eliminate low frequency noise.

In step S730, the processor 533 generates a partial sum signal (hereinafter referred to as a subtotal prolonged signal and a subtotal motion signal) of a predetermined time interval from the filtered bio-signal to facilitate detection of a peak of the biological signal, . According to the present embodiment, the processor 533 may generate a subtotal signal using a Fourier series.

In step S740, the processor 533 removes the friction of the subtended sound signal by the abdominal motion using the subtotal motion signal.

Specifically, referring to Fig. 8, as a component (graph abscissa-temporal reference) overlapping with a subtotal motion signal (Fig. 8 (b)), A component whose specific gravity is equal to or larger than a predetermined ratio (for example, 30%) is regarded as friction. Then, the processor 533 removes the components regarded as frictional from the subtotal prolonged signal, and the result is as shown in (c) of FIG.

Returning to FIG. 7, in step S750, the processor 533 detects the number of peaks from the long sound signal from which the friction is removed, and measures the number of long sounds. As described above with reference to FIG. 1, it is assumed that the number of long peaks in the present embodiment is equal to the number of long notes.

In step S760, the processor 533 compares the measured number of long sounds with a predetermined threshold to determine a defecation symptom. Here, the threshold value can be set in advance in consideration of the sex, age, etc. of a person as described above with reference to FIG.

If it is determined in step S760 that the current number of long sounds exceeds the predetermined threshold value (Yes), the processor 533 determines that the user is in the state immediately before defecation and sends a defecation warning signal to the communication module 550 or the user interface 590 And proceeds to step S770.

In step S770, the communication module 550 can transmit the received defecation warning signal to the external electronic device via the wireless communication. The defecation symptom information transmitted to the external electronic device can be output to the user through various functions such as visual, auditory, tactile, etc. through various functions of the electronic device.

Alternatively, in step S770, the user interface 590 may output the received defecation warning signal using a display device, a vibration device, or the like, so that the user or his / her protector can be informed of the state immediately before defecation.

If it is determined in step S760 that the current number of long sounds is less than or equal to the predetermined threshold value (NO), the processor 533 determines that the user is in a post-defecation state (i.e., a normal state) To the user interface 590 and proceeds to step S780.

In step S780, the communication module 550 may transmit the received defibrillation normal signal to the external electronic device through wireless communication.

Alternatively, in step S780, the user interface 590 may output the received defecation normal signal using a display device, a vibration device, or the like.

In summary, the wearable device 500 according to another aspect of the present invention measures the number of long sounds using the user's long-term signal and the abdominal motion signal, identifies signs of bowel movement based on the measured long- Can be performed.

9 is a view showing a specific example of the wearable device according to the present embodiment.

9, the wearable device 900 includes one PVDF acoustic sensor 910, three EMG motion sensors 930-1 through 930-3, an electronic module 950, and a wear portion 970 .

One PVDF acoustic sensor 910 is placed near the sigmoid colon of the user to measure the long sound signal.

The three EMG motion sensors 930 are located near the vermiform appendix (EMG +, 901-1), the left flank area positions (EMG-, 901-2) and the right flank area positions (EMG GND, 901 -3) to measure the abdominal motion signal.

The electronic module 950 is disposed outside the PVDF acoustic sensor 910 and the EMG motion sensor 901-1 so as to face the front of the abdomen of the user and measures the number of long sounds from a living body signal (that is, a long sound signal and a motion signal) can do. The electronic module 950 may be implemented as a package in which the control unit 530, the communication module 550, the storage unit 570, and the user interface 590 described above with reference to FIG. 5 are integrated.

The electronic module 950 may further include a battery module (not shown) for supplying power to the wearable device 900.

The wearer 970 may be embodied as a belt of a flexible material (e.g., silicone, rubber band, etc.) that can be worn in the form of a circle on the abdomen of the wearer so that the number of long sounds can be accurately measured.

An example of wear of the wearable device 900 is as shown in Fig.

10 is a view showing an example of wearing the wearable device shown in Fig.

Referring to FIG. 10, a user may wear the wearable device 900 in the form of a belt on his / her abdomen and touch a power button (not shown) to drive the wearable device 900. At this time, the user can adjust the circumference of the wearing portion 970 by using a buckle (not shown) or the like so that the wearable device 900 is brought into close contact with the abdomen.

The foregoing description is merely illustrative of the technical idea of the present embodiment, and various modifications and changes may be made to those skilled in the art without departing from the essential characteristics of the embodiments. Therefore, the present embodiments are to be construed as illustrative rather than restrictive, and the scope of the technical idea of the present embodiment is not limited by these embodiments. The scope of protection of the present embodiment should be construed according to the following claims, and all technical ideas within the scope of equivalents thereof should be construed as being included in the scope of the present invention.

Claims (17)

A wearable apparatus for informing a user of a bowel movement symptom,
A sensor unit including at least one acoustic sensor for measuring a bowel sound signal in the abdomen of the user;
A filter unit for removing noise due to heartbeat or respiration in the long-term signal;
A processor for detecting a bowel symptom by comparing the number of long sounds with the predetermined threshold after detecting the number of long sounds from the long sound signal from which the noise is removed;
A communication module for transmitting information on the defecation symptom to an external device; And
And a storage unit for storing the long sound signal and the number of long sounds
Remodeling Warning Wearable Device. The method according to claim 1,
The processor comprising:
A partial sum operation is performed on the long sound signal from which the noise has been removed at a predetermined time interval to generate a partially extended sound signal and then the number of long sounds is detected from the partially synthesized sound signal
Remodeling Warning Wearable Device. 3. The method of claim 2,
Wherein the subtotal operation is performed by:
And is performed using a Fourier series
Remodeling Warning Wearable Device. The method according to claim 1,
The threshold value may be,
Is stored in the storage unit in advance based on the sex, age, etc. of the person, and is updated based on the number of long sounds stored in the storage unit during operation of the wearable device
Remodeling Warning Wearable Device. The method according to claim 1,
The processor comprising:
When the number of long sounds exceeds the threshold value, transmits a signal indicating a state of bowel warning to the communication module,
When the number of long sounds is equal to or less than the threshold value, transmits a signal indicating a state of defecation to the communication module
Remodeling Warning Wearable Device. The method according to claim 1,
The acoustic sensor comprises:
Including PVDF (polyvinylidene fluoride) film sensors
Remodeling Warning Wearable Device. The method according to claim 1,
The acoustic sensor comprises:
Is located near the sigmoid colon of the user
Remodeling Warning Wearable Device. The method according to claim 1,
The filter unit includes:
Which is implemented by a high pass filter
Remodeling Warning Wearable Device. The method according to claim 1,
Further comprising a wearable portion in the form of a belt for wearing the wearable device on the waist of the user,
Wherein the filter unit, the processor and the communication module are packaged as one electronic module and disposed on one side of the wearer
Remodeling Warning Wearable Device. The method according to claim 1,
Further comprising a user interface for inputting user information and a measurement mode for the prolonged sound signal from the user and outputting information on the defecation symptom
Remodeling Warning Wearable Device. 11. The method of claim 10,
In the measurement mode,
And at least one mode according to a measurement period of the prolonged signal
Remodeling Warning Wearable Device. A wearable apparatus for informing a user of a bowel movement symptom,
A sensor unit including at least one acoustic sensor for measuring a bowel sound signal in the abdomen of the user and at least one motion sensor for measuring a user's abdominal motion signal;
A filter unit for removing noise due to heartbeat or respiration in each of the long sound signal and the abdominal motion signal;
Removing the friction of the long sound signal from which noise has been removed using the noise canceled abdominal motion signal and comparing the number of long sounds detected from the long sound signal from which the stimulus is removed to a predetermined threshold value, A processor for identifying the processor;
A communication module for transmitting information on the defecation symptom to an external device; And
And a storage unit for storing the long sound signal, the abdominal motion signal, and the number of long sounds
Remodeling Warning Wearable Device. 13. The method of claim 12,
The processor comprising:
Generating a partial sum sound signal and a subtotal part motion signal by performing a partial sum operation at predetermined time intervals on the noise-removed long sound signal and the noise-removed abdomen motion signal, respectively, Is used to remove the friction of the subtended long sound signal
Remodeling Warning Wearable Device. 13. The method of claim 12,
The threshold value may be,
Is stored in the storage unit in advance based on the sex, age, etc. of the person, and is updated based on the number of long sounds stored in the storage unit during operation of the wearable device
Remodeling Warning Wearable Device. 13. The method of claim 12,
The processor comprising:
When the number of long sounds exceeds the threshold value, transmits a signal indicating a state of bowel warning to the communication module,
When the number of long sounds is equal to or less than the threshold value, transmits a signal indicating a state of defecation to the communication module
Remodeling Warning Wearable Device. 13. The method of claim 12,
Further comprising a wearable portion in the form of a belt for wearing the wearable device on the waist of the user,
Wherein the filter unit, the processor and the communication module are packaged as one electronic module and disposed on one side of the wearer
Remodeling Warning Wearable Device. 13. The method of claim 12,
Further comprising a user interface for inputting user information, the long sound signal, and the measurement mode for the abdominal motion signal from the user, and outputting information on the defecation symptom
Remodeling Warning Wearable Device.

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