Undressing sensor device and undressing detection method using the same

Abstract

The present application provides a kind of undressing sensor device, and undressing detection method using the device, which can realize non-restraint nursing by relying on small amount of manpower, can find the discomfort of the person being cared for and the risk behavior such as undressing caused thereby as early as possible.To solve the above technical problems, the undressing sensor device has a waistband 3 that can be wrapped around the waist of the person being cared for 110, an undressing sensor part 4 that detects at least one of stretching and disengagement of the waistband 3, and an alarm part 7 that alarms the caregiver when the undressing sensor part 4 detects at least one of stretching and disengagement of the waistband 3.The undressing sensor device 2 also has a storage part 6 that stores mode data or an alarm threshold value of undressing behavior, and an undressing judgment part 5 that compares the detection data of the undressing sensor part 4 with the undressing behavior mode data or the alarm threshold value when at least one of stretching and disengagement of the waistband 3 is detected, and judges whether it is undressing behavior.The undressing detection method performs the steps of wearing the undressing sensor device, starting the undressing sensor part, detecting the undressing behavior, and issuing an alarm.

Description

Technical Field

[0001] This invention relates to a undressing sensor device for detecting and preventing undressing behavior of patients or those being cared for in medical or nursing settings, and to a technique for undressing detection using the device. Background Technology

[0002] In the clinical and nursing care of dementia patients, it has been recognized that physical restraints such as restraint straps or anti-scratch gloves not only lead to a decline in the physical and mental function of the person being cared for, but also have adverse psychological and social effects on caregivers such as family members and related staff. Therefore, efforts are being made to achieve zero physical restraint.

[0003] However, for caregivers with declining cognitive function, there may be risky behaviors such as undressing, removing diapers, and soiling clothes. When caregivers defecate while undressed, it can lead to difficulties maintaining personal hygiene and increased discomfort. Furthermore, it increases the burden on caregivers in changing clothes and sheets. Without physical restraints to prevent these behaviors, it is necessary to increase the time spent on toilet training and monitoring, and allocate more manpower to detect discomfort caused by risky behaviors such as undressing as early as possible.

[0004] For example, Patent Document 1 (Japanese Patent Application Publication No. 2021-163106) discloses a diaper changing time monitoring system, including: an RFID tag installed on the diaper used by the caregiver, a reading device for reading information written in the IC chip of the RFID tag, and an external device for recording and processing values ​​calculated based on the information read by the reading device. The reading device acquires the information written in the IC chip when the diaper is not wet, takes the moment when information reading is interrupted as the first moment when the diaper needs to be changed, takes the moment when information is acquired from the IC chip on the new diaper after the change as the second moment when the diaper changing ends, and calculates the time from the first moment to the second moment as the time required for diaper changing.

[0005] In addition, Patent Document 2 (Patent No. 6929501) discloses a moisture detection sensor, a moisture alarm device, and a moisture leakage detection method. The moisture detection sensor is used to detect the dampness of diaper pads or diapers. Its feature is that any one of the following is assembled with a first electrode in this order: diaper pad and diaper pad cover; diaper pad and diaper; diaper pad, diaper and diaper pad cover; diaper; or diaper and diaper cover. A human body side electrode that is in contact with the human body is used as a second electrode opposite to the first electrode to form a capacitor structure.

[0006] Patent Document 1: Japanese Patent Application Publication No. 2021-163106 Patent Document 2: Japanese Patent No. 6929501 Summary of the Invention

[0007] The diaper changing time monitoring system in Patent Document 1, to more accurately calculate the time required for diaper changing, must consider various variable factors such as climate changes, changes in diet and intake, and changes in the caregiver's physical condition. Since the caregiver only notices when the diaper is wet, it cannot detect risky behaviors such as undressing. It also cannot prevent defecation or defecation after undressing.

[0008] The moisture detection sensor, moisture alarm device, and leakage detection method in Patent Document 2 are also identified by the caregiver when the diaper or pad is wet, and cannot detect the risky behavior.

[0009] With the development of a super-aged society, a shortage of nursing professionals has emerged. Providing unconstrained care in hospitals and nursing facilities with limited staff is extremely difficult. Furthermore, this problem is even more severe in home care.

[0010] In view of this reality, the present invention aims to provide a undressing sensor device and a undressing detection method thereof. This device can enable unrestrained care even when there is a shortage of personnel, and can detect the discomfort of the person being cared for and the resulting risky behaviors such as undressing as early as possible.

[0011] The present invention relates to a undressing sensor device, the device comprising: a waist belt that can be wrapped around the waist of a person being cared for; a undressing sensor unit that detects at least one of stretching and loosening of the waist belt; and an alarm unit that alerts the caregiver when the undressing sensor unit detects at least one of stretching and loosening of the waist belt.

[0012] The belt is worn around the waist of the person being cared for. When the person undresses, it deforms into a stretched state around the waist or a broken loop around the waist. The belt is shaped and designed to wrap around the waist, and can be either stretchable or non-stretchable along the waistline. The belt is flexible and will not put unnecessary pressure on the person's body. The belt can be made of a breathable, stretchable mesh material, such as a bandage or medical tape. The belt can be disposable and replaced with a new one after one or more uses (e.g., one week).

[0013] The undressing sensor detects at least one of the stretching and loosening of the belt. For example, the undressing sensor may have a pair of electrodes that are electrically powered; when the belt is worn, the electrodes are connected and energized; when the belt is stretched or loosened, the electrodes are disconnected and no longer energized. Alternatively, the undressing sensor may be an electromagnetic sensor with a magnet at its center; when the belt is worn, the electromagnetic sensor does not generate electricity, but when the belt is stretched or loosened, the electromagnetic sensor generates electricity. The undressing sensor may be disposable and replaced with a new one after one or more uses (e.g., one week).

[0014] The clothing removal sensor component consists of a variable resistor with a rod-shaped sliding electrode at the center of a cylindrical resistive body. An electric current is applied between the resistive body and the sliding electrode. The resistance is minimum when the belt is worn and maximum when the belt is stretched or removed, or when the sliding electrode detaches from the resistive body, causing the current to be cut off. The clothing removal sensor component can be a strain gauge or strain sensor capable of detecting the stretching or removal of the belt.

[0015] The clothing removal sensor unit includes: multiple switch units arranged along the stretching direction of the belt; and a switch operation unit that sequentially closes or opens these switch units as the belt stretches or extends. The switch operation unit can close or open a corresponding number of switch units according to the degree of stretching of the belt, and open or close a corresponding number of switch units according to the degree of shrinkage (shape recovery) of the belt. When the belt is removed, all switch units are open or closed. The clothing removal judgment unit includes a counting circuit for counting the number of open or closed switch units of the clothing removal sensor unit, and can determine whether the belt has stretched or detached, and whether clothing removal has occurred, based on the number of open or closed switch units.

[0016] The undressing sensor unit can be distributed in multiple units (at least 3 units) around the waist of the person being cared for.

[0017] The undressing sensor unit can be configured around the waist of the person being cared for, specifically on the left, front, and right sides of the abdomen. The left waist configuration showed the highest detection rate, followed by the front abdomen configuration. The right waist and front abdomen configurations showed the lowest false alarm rates. When it is necessary to improve the detection rate, the detection data from the left waist and front abdomen can be used preferentially; when it is necessary to reduce the false alarm rate, the detection data from the right waist and front abdomen can be used preferentially.

[0018] The undressing sensor component can be installed at any location around the waist of the person being monitored, including the left, front, or right waist area. To improve the detection rate, it can be installed on the left waist area. To reduce the false alarm rate, it can be installed on the right waist area or front abdomen.

[0019] The undressing sensor can be installed on the left waist and abdomen, or the front abdomen, around the waist of the person being cared for. Compared with the detection data from the right waist and abdomen, this improves the detection rate of undressing behavior. Alternatively, the undressing sensor can be installed on the left waist and abdomen, also around the waist of the person being cared for. Compared with the detection data from the front abdomen, this improves the detection rate of undressing behavior.

[0020] The undressing sensor can be installed at least at one location on the right lower abdomen and the front abdomen around the waist of the person being cared for. Compared with the detection data on the left abdomen, it can further reduce the false alarm rate of undressing behavior.

[0021] When the undressing sensor detects the ward's undressing behavior, the alarm unit alerts the caregiver so that appropriate measures can be taken before the ward engages in risky behavior. The alarm unit may also alert the caregiver when the undressing sensor detects at least one of the following: belt stretching or slipping. The alarm unit may also alert the caregiver when the undressing determination unit determines that the behavior constitutes undressing.

[0022] In this invention, a connecting part for engaging with the clothing of the person being cared for may be provided on the waistband and / or the undressing sensor part. Through this connecting part, the undressing sensor device, especially the waistband and the undressing sensor part, can be integrated with the person being cared for, thereby preventing the undressing sensor device, especially the waistband, from falling off when the person being cared for performs actions such as undressing or manipulating feces.

[0023] The connecting part can be a magnetic component, capable of magnetically attaching to magnetic components (such as magnetic clips) on the clothing of the person being cared for, or it can be a snap, clip, or hook and loop, allowing for attachment and detachment relative to the clothing. Alternatively, the magnetic component on the clothing can be connected to a magnetic component on the waistband and / or the undressing sensor. Furthermore, the connecting part can be located on the undressing sensor, the waistband, or both. Besides being located on the front side around the waist or near the undressing sensor, the connecting part can be located in other locations, preferably at two or more locations around the waist.

[0024] This invention relates to a clothing removal sensor device, comprising: a storage unit storing pattern data or alarm thresholds for clothing removal behavior; a clothing removal judgment unit that, when detecting at least one of stretching and loosening of the waistband, determines whether it constitutes clothing removal behavior based on the detection data from the clothing removal sensor unit; the clothing removal judgment unit compares the detection data from the clothing removal sensor unit with the pattern data or alarm thresholds for clothing removal behavior, and determines that it constitutes clothing removal behavior when the similarity to the pattern data is high or the alarm threshold is reached; when the clothing removal judgment unit determines that it constitutes clothing removal behavior, the alarm unit alerts the caregiver.

[0025] The storage unit stores pattern data of undressing behavior detected by the undressing sensor unit. This pattern data can be any of the following: data obtained from multiple individuals, data obtained from the person being cared for, or standard data derived from data obtained from multiple individuals. The pattern data of undressing behavior can also be voltage waveform data detected during the undressing behavior. Furthermore, the alarm threshold can be any of the following: data obtained from multiple individuals, data obtained from the person being cared for, or a standard threshold derived from data obtained from multiple individuals. The alarm threshold can also be a specific voltage value detected during the undressing behavior. The storage unit can be a non-volatile memory, flash memory, memory card, USB memory, RAM, ROM, HDD, SSD, etc.

[0026] The undressing determination unit compares the detection data from the person being cared for by the undressing sensor unit with the pattern data of undressing behavior stored in the storage unit to determine whether it is an act of undressing. The undressing determination unit can also determine whether undressing behavior exists throughout the entire process leading to the risky behavior by comparing the detection data obtained from the initial actions of the person being cared for in the risky behavior with the pattern data of undressing behavior stored in the storage unit. The undressing determination unit can be a microcomputer or other CPU equipped with software such as a undressing determination program and a transceiver program.

[0027] This invention relates to a clothing removal sensor device, which includes a clothing removal sensor unit comprising: a pair of electrodes respectively disposed at both ends of a waist belt; a power supply for applying a voltage between the pair of electrodes; a voltmeter for detecting the voltage between the pair of electrodes; each of the pair of electrodes is provided with a magnetic attraction part with different magnetic poles, and the pair of electrodes are reconnected even if at least one of the stretching and detachment of the waist belt is detected, if no clothing removal has occurred.

[0028] A detachable part is provided between the pair of electrodes and the belt, allowing for free attachment and removal from the belt. A power source applies voltage between the pair of electrodes through a resistor. A voltmeter measures the voltage between the pair of electrodes. The power source and voltmeter can be integrated with the belt. The power source and voltmeter are detachable from the belt. The power source and voltmeter can be wiredly connected via a wiring harness extending from the pair of electrodes.

[0029] The magnetic attraction component applies a certain attractive force between the pair of electrodes. The clothing removal sensor detects the voltage value between the pair of electrodes. If a risky behavior occurs, the electrodes separate, resulting in a zero voltage. If no clothing removal occurs, the magnetic attraction component brings the pair of electrodes together to restore the voltage. If the pair of electrodes repeatedly separates and rejoins more than twice within a short period of time, the clothing removal sensor determines it as the initial state of a risky behavior. The clothing removal sensor can also determine a clothing removal state when the pair of electrodes are separated and the voltage is zero for a certain period of time (e.g., 1 to 2 minutes).

[0030] The magnetic attraction component attracts the pair of electrodes with a certain attractive force. The magnetic attraction component can be composed of permanent magnets with different magnetic poles arranged around the pair of electrodes. The magnetic attraction component can also apply a different magnetic force to each of the pair of electrodes. The magnetic attraction component can be an electromagnet.

[0031] This invention relates to a clothing removal sensor device, which includes an alarm unit comprising: a transmitting module that outputs at least one of the detection data of the clothing removal sensor and the judgment signal of the clothing removal judgment unit; a control terminal that receives the output signal of the transmitting module and outputs a notification; and a human-machine interface that receives the notification output from the control terminal.

[0032] The transmitting module outputs at least one of the detection data from the clothing removal sensor and the judgment signal from the clothing removal judgment unit to the control terminal. The transmitting module is capable of wired or wireless communication with both the clothing removal judgment unit and the control terminal. The transmitting module can communicate with both the clothing removal judgment unit and the control terminal via at least one relay station.

[0033] The control terminal outputs the judgment information received from the sending module by the clothing removal judgment unit through a human-machine interface. The control terminal can process and store the data received from the sending module. The control terminal may have software for controlling the clothing removal sensor device of the present invention. The control terminal can connect to storage devices, servers, the Internet, cloud services, etc., for data accumulation and analysis.

[0034] The human-machine interface can be a mobile terminal, smartphone, telephone, monitor, speaker, display panel, nurse call system, etc., that communicates the occurrence of risky behavior to the caregiver.

[0035] This invention relates to a clothing removal sensor device, comprising: a monitoring camera for capturing images of the person being cared for; a database communicating with a control terminal and storing the ID data of the person being cared for; and software that associates at least one of the detection data from the clothing removal sensor and the judgment signal from the clothing removal judgment unit, along with their time information, with the ID data of the person being cared for in the database. Furthermore, the software associates the ID data, time information, and detection data from the clothing removal sensor, or the judgment signal from the clothing removal judgment unit, the time information, and the ID data with monitoring camera image data from tens of seconds before and after the detection of belt stretching or detachment, and accumulates these data together in the database.

[0036] The ID data of the person being cared for is information used to identify or determine the individual. For example, it may include name, age, gender, blood type, room number, bed number, medical record number, etc. The database communicates with the control terminal and analyzes and stores the data. The monitoring camera continuously captures images of the person being cared for and outputs the recorded images according to the software. The monitoring camera is equipped with memory and can overwrite recordings at regular intervals.

[0037] This invention relates to a method for detecting undressing using a undressing sensor device, comprising: a wearing step, wherein the undressing sensor is disposed at at least at one location on the right waist and front abdomen of the person being cared for, and the waist belt is wrapped around the waist of the person being cared for; an activation step, wherein the undressing sensor is activated; a detection step, wherein the undressing sensor detects at least one of stretching and loosening of the waist belt; and an alarm step, wherein when the detection step detects undressing behavior, the alarm unit outputs an alarm signal.

[0038] The wearing step involves wearing the belt around the waist of the person being cared for. For example, the caregiver may wear it around the waist of the person being cared for. Without considering improving the detection rate or reducing the false alarm rate, the undressing sensor can be freely positioned at any location on the front, right, or left abdomen of the person being cared for. Positioning the undressing sensor at least on the left abdomen and front abdomen of the person being cared for results in a higher detection rate for undressing behavior compared to positioning it on the right abdomen. Positioning the undressing sensor on the left abdomen of the person being cared for further improves the detection rate compared to positioning it on the front abdomen. Positioning the undressing sensor at least on the right abdomen and front abdomen of the person being cared for further reduces the false alarm rate for undressing behavior compared to positioning it on the left abdomen.

[0039] The activation step involves activating the undressing sensor device after the donning step. The undressing sensor device can be activated by the caregiver using a switch located on the belt, the undressing sensor unit, the alarm unit, or other parts. Alternatively, the undressing sensor device can be remotely activated via a control terminal or human-machine interface. The control terminal or human-machine interface can be a smartphone or mobile terminal carried by the caregiver, a computer or other terminal device located in the caregiver's waiting room such as the nurse's (medical staff's) station, or a nurse call center.

[0040] In the detection step, the clothing removal sensor detects at least one of the stretching and detachment of the belt.

[0041] When undressing is detected during the detection step, the alarm unit outputs an alarm signal. The undressing sensor unit communicates with the alarm unit via wired or wireless means, and then the alarm unit outputs an alarm signal to the control terminal or human-machine interface.

[0042] This invention relates to a method for detecting undressing using a undressing sensor device, comprising: a detection step, wherein the undressing sensor detects at least one of stretching and loosening of the belt; a undressing determination step, wherein when the undressing sensor detects at least one of stretching and loosening in the detection step, the undressing determination step determines whether it is an act of undressing; and an alarm step, wherein when the undressing determination step determines that it is an act of undressing, the alarm unit outputs an alarm signal.

[0043] In the clothing removal judgment step, if the clothing removal sensor detects at least one of stretching and detachment in the detection step, the clothing removal judgment unit determines whether it is a clothing removal behavior. If the clothing removal judgment unit determines that it is a clothing removal behavior in the clothing removal judgment step, the clothing removal judgment unit outputs the judgment information of the clothing removal behavior to the alarm unit.

[0044] In the alarm step, when the undressing judgment unit determines that undressing has occurred during the undressing judgment step, the alarm unit outputs an alarm signal. The undressing judgment unit communicates with the alarm unit via wired or wireless means, and then the alarm unit outputs an alarm signal to the control terminal or human-machine interface.

[0045] The effects of the invention According to the undressing sensor device and the undressing detection method using the device of the present invention, non-binding care can be achieved even with a small number of caregivers. The present invention provides undressing sensor technology to detect discomfort in the person being cared for and risky behaviors such as undressing as a result as early as possible. In particular, since the undressing sensor device of the present invention can be worn as a belt, it can be used without restricting the user's clothing. Attached Figure Description

[0046] Figure 1 This diagram illustrates the clothing removal alarm system 1 utilizing the clothing removal sensor device 2 of the present invention. Figure 1 (A) is a block diagram of the undressing alarm system 1. Figure 1 (B) Conceptual diagram of the undressing alarm system 1.

[0047] Figure 2 This diagram illustrates a clothing removal alarm system 1 using the clothing removal sensor device 2 of the present invention. Figure 2 (A) Circuit concept diagram of the undressing alarm system 1. Figure 2 (B) is a perspective view showing the main part of the clothing removal sensor device 2.

[0048] Figure 3 These are photos showing the main components of the clothing removal sensor device 2. Figure 3 Photo (A) is a photograph of the clothing removal sensor unit 4 (back of the electrode). Figure 3 (B) is a photograph of the clothing removal sensor section 4 (a pair of electrodes). Figure 3 (C) is a photograph of the belt 3 and the clothing removal sensor unit 4 in their disassembled state. Figure 3 (D) to Figure 3 (H) is a photograph of the belt 3 equipped with the clothing removal sensor unit 4. Figure 3 (J) is a photograph of the clothing removal sensor device 2.

[0049] Figure 4 It shows a photo of the undressing sensor device 2 being worn by the person being cared for, 110. Figure 4 (A) is a photo of the belt 3 wrapped around the waist 111. Figure 4 (B) ~ Figure 4 (D) is a combined photograph of the clothing removal sensor section 4 (a pair of electrodes). Figure 4 (E) ~ Figure 4 (F) is a photo of the belt 4 wrapped around the waist of the nursing gown 112.

[0050] Figure 5 This is an example of a waveform for detecting voltage. Figure 5 (A) is the voltage waveform detected during the undressing process. Figure 5 (B) is the voltage waveform detected during the undressing behavior.

[0051] Figure 6 This is a variation of the clothing removal sensor device 2. Figure 6 (A) is a perspective view of a modified example of the clothing removal sensor section 4 (a pair of electrodes 43). Figure 6 (B) is a three-dimensional view of a modified example of belt 3.

[0052] Figure 7This is another variation of the clothing removal sensor device 2. Figure 7 (A) is a perspective view of the main components of the clothing removal sensor device 2. Figure 7 (B) is a photograph of the state of the nursing gown 112 being worn.

[0053] Figure 8 This is a flowchart of the clothing removal detection method of the present invention. Detailed Implementation

[0054] Hereinafter, with reference to the accompanying drawings, the clothing removal sensor device of the present invention and the clothing removal detection method thereunder are described in detail in this embodiment.

[0055] The undressing sensor device 2 of the present invention includes: a waist belt 3, which can be worn around the waist 111 of a person being cared for; a undressing sensor unit 4, which detects at least one of the extension and detachment of the waist belt 3; and an alarm unit 7, which notifies the caregiver when the undressing sensor unit 4 detects at least one of the extension and detachment of the waist belt 3. In particular, this embodiment also includes: a storage unit 6, which stores pattern data of undressing behavior or alarm thresholds; and a undressing judgment unit 5, which, when detecting at least one of the extension and detachment of the waist belt 3, compares the detection data of the undressing sensor unit 4 with the pattern data of undressing behavior or the alarm thresholds to determine whether it is an act of undressing.

[0056] like Figure 2 (B) Figure 3 (A) ~ Figure 3 (J) and Figure 4 (A) ~ Figure 4 As shown in (F), the waist belt 3 is sized to be longer than the waist 111 of the person being cared for 110. It consists of a base belt 30 and an anti-slip sheet 31, with the anti-slip sheet 31 overlapping and integrally formed with the waist 111 of the base belt 30. The base belt 30 is an elastic, stretchable, and flexible material, such as surgical tape. The anti-slip sheet 31 can be a sheet of high-friction, soft rubber or synthetic resin, with uneven surfaces in contact with the waist 111. One end of the waist belt 3 is a detachable end 32, and the other end is the opposite end to the detachable end 32. When it is looped, the other end overlapping the detachable end 32 has a size adjustment range 34 around the waist.

[0057] On the back of the detachable end 32 and the surface of the size adjustment range 34, there are male and female face buckles 33. On the back of one side of the detachable end 32, there is a face buckle 33 for mounting the electrodes of the undressing sensor part 4. The anti-slip sheet 31 exposed in the area other than the face buckles 33 on the back of the belt 3 can increase the friction with the clothing (nursing clothes, pants, diapers, etc.) 112 of the person being cared for 110. The face buckles 33 can also be set to be freely attached to the base material tape 30 (surgical tape), in which case the face buckles 33 do not need to be set on the base material tape 30 (the surface).

[0058] The undressing sensor unit 4 has a pair of pole bases 40. These pole bases 40 are set shorter than the size adjustment range 34 and are composed of face clips that can be installed and removed relative to the face clips 33 on the front and back sides (and the medical tape of the substrate strip 30), respectively. The surface opposite to the fastening surface of the face clips of each pole base 40 is an electrode surface, which is a magnetic attraction part 41 with a flexible magnetic sheet (permanent magnet) attached. The pair of pole bases 40 are attracted by the magnetic attraction parts 41 of the magnetic poles of their different electrode surfaces.

[0059] The pair of electrode bases 40 have an aluminum strip conductive film 42 exposed at the midpoint of their respective magnetic attraction portions 41. Each conductive film 42 has an electrode 43 that penetrates the electrode base 40 and the magnetic attraction portion 41 in its thickness direction, and exposes a connecting plug 44 on the snap fastener side. The connecting plugs 44 of the pair of electrodes 43 are detachably connected to terminals 46 of detection harnesses 45. The terminals 46 of each detection harness 45 are sandwiched between the snap fastener of each electrode base 40, the size adjustment range 34 of the waistband 3 attached thereto, and the snap fasteners 33 for mounting the electrodes.

[0060] A sensor unit 47 is connected to the base end opposite to the terminal 46 of the pair of detection harnesses 45. The sensor unit 47 has a built-in power supply and voltmeter. The sensor unit 47 is connected to a transmitting module 48 via wired or wireless means. The transmitting module 48 has a built-in transceiver.

[0061] The pair of detection harnesses 45 and sensor unit 47 are integrated with the waist belt 3, enabling the sensor unit 47 to communicate wirelessly with the transmitting module 48. The pair of detection harnesses 45, sensor unit 47, and transmitting module 48 can be integrated with the waist belt 3. The pair of detection harnesses 45, sensor unit 47, transmitting module 48, and control terminal 70 can be integrated with the waist belt 3.

[0062] In addition to the transceiver, the transmitting module 48 also includes a clothing removal judgment unit 5 and a storage unit 6. The storage unit 6 can be a memory that stores pattern data or alarm thresholds for clothing removal behavior. The memory can rewrite the pattern data or alarm thresholds for clothing removal behavior with the latest information, or rewrite them with information corresponding to the specifications, installation location, and other usage conditions of the clothing removal sensor unit 4. The clothing removal judgment unit 5 is a microcomputer and software that compares the detection data from the clothing removal sensor unit 4 with the pattern data or alarm thresholds for clothing removal behavior stored in the memory 60. When the similarity to the pattern data is high, or when the alarm threshold is reached, it is judged as clothing removal behavior, and a detection signal is output.

[0063] The alarm unit 7 includes the transmitting module 48 and a control terminal 70 or a human-machine interface 71, which can communicate with the transmitting module 48. The control terminal 70 can be a desktop PC, laptop PC, tablet PC, or similar device operable by a caregiver or the administrator of the undressing sensor device 2. The human-machine interface 71 can be a smartphone, tablet PC, mobile phone, or other portable terminal used by the caregiver. The human-machine interface 71 can have the functions of the control terminal 70 and also serve as the control terminal 70; in this case, the control terminal 70 can be omitted.

[0064] The undressing sensor device 2 is equipped with a monitoring camera 8 that captures images of the person under care 110. The monitoring camera 8 has a control unit, a memory, and a transceiver, used to record the state of the person under care 110 in real time and rewrite the image data at regular intervals. The control terminal 70, based on its software, receives an alarm from the transmitting module 48 indicating that the person under care 110 is undressing, and then receives image data from the memory of the monitoring camera 8 for tens of seconds before and after the undressing behavior via the transceiver. The control terminal 70 has a transceiver unit capable of communicating with the transmitting module 48 and the monitoring camera 8 via a wireless repeater (e.g., Wi-Fi) 72 or a wired connection. The software can be replaced with a photorelay or a sequential control circuit. The image data can be used to observe the triggers for undressing and fecal manipulation behaviors and provide a reference for future preventative care.

[0065] The undressing sensor device 2 can be part of the undressing alarm system 1. In addition to the undressing sensor device 2, the undressing alarm system 1 also includes external storage devices 10 such as a server 11, a database 12, and a cloud platform 13 connected to the control terminal 70. In the undressing alarm system 1, a nurse call system (nurse call controller, transceiver) 14 can be located between the alarm unit 7 of the undressing sensor device 2, the control terminal 70, and the human-machine interface 71, allowing notifications from the control terminal 70 to be transmitted to the human-machine interface 71 via the nurse call system 14.

[0066] like Figure 2 As shown in (A), the undressing alarm system 1 includes, for example, a transmitting module 48 (sensor unit 47, undressing sensor part 4) of the undressing sensor device 2 connected to the bus 15 via wired or wireless means, a control terminal 70, a human-machine interface (mobile terminal) 71, a microcomputer, a memory, and a monitoring camera 8. The bus 15 may also be connected to an external storage device 10 such as a server 11, a cloud 13 on the Internet, and a nurse call system 14.

[0067] like Figure 1 (B) Figure 2 (B) Figure 3 (A) ~ Figure 3 (J) and Figure 4 (A) ~ Figure 4 As shown in (F), when the waist belt 3 is worn on the waist 111 of the person being cared for 110, the terminals 46 of each detection harness 45 need to be connected to the connector 44 of the electrode 43 of each pole base 40 of the pair of undressing sensor units 4. The pole base 40 (face buckle) of each undressing sensor unit 4 is then attached to each face buckle 33 of the waist belt 3. The undressing sensor unit 4 installed within the size adjustment range 34 is moved along the length of the waist belt 3 to adjust to a size suitable for the waist 111 of the person being cared for, ensuring that the conductive films 42 of the pair of undressing sensor units 4 overlap and do not shift, so that their respective magnetic attachment parts 41 attract each other. Figure 4 (A) Figure 4 (B) Figure 4 (D) Figure 4 As shown in (F), when the magnetic absorbing parts 41 are attracted to each other, the energized films 42 (electrodes 43) engage with each other and become energized. The face buckle 33 of the detachable end 32 is attached to the face buckle 33 of the size adjustment range 34 or the surface of the surgical tape, and then worn around the waist 111 of the person being cared for, without gaps from above the diaper and nursing gown.

[0068] When the undressing sensor device 2 detects the undressing behavior of the person being cared for 110, the voltmeter 471 will detect such... Figure 5 (A) and Figure 5The voltage waveform shown in (B) indicates that when the voltage stabilizes at around 2.5V, the undressing sensor unit 4 is energized, indicating that no undressing behavior has been detected. When the voltage is 0V, the undressing sensor unit 4 is in a detached state, indicating that undressing behavior has been detected. If the undressing behavior is unexpectedly terminated midway, the undressing sensor unit 4 will reconnect due to the attraction of the magnetic part 41. If the clothing is completely removed, the magnetic part 41 will detach and cannot re-attach, and the connection of the undressing sensor unit 4 will be disconnected for a certain period of time (e.g., tens of seconds).

[0069] like Figure 6 As shown in (A), the pair of undressing sensor units 4 can be replaced with a component consisting of a sheath pole 460 and a sliding pole 461. The sheath pole 460 is connected to one of the pair of detection wire bundles 45 and is made of a conductive material with resistance and magnetism. The sliding pole 461 can be freely inserted into the sheath pole 460 and is also made of a conductive material with resistance and magnetism. The sheath pole 460 and the sliding pole 461 are each provided with a buckle, which can be attached to the vicinity of both ends of the waist belt 3 and can be freely removed. When the waist belt 3 is wrapped around the waist 111 of the person being cared for 110, the sliding pole 461 is inserted into the sheath pole 460. If the waist belt 3 stretches due to undressing, the sliding pole 461 will move in the direction of disengaging from the sheath pole 460, and the voltage between them will change. In addition, if the person being cared for 110 stops undressing, and the belt 3 retracts to its original position without being pulled out, the sliding pole 461 will be reinserted into the sheath pole 460, and the voltage will return to normal.

[0070] Countermeasures for undetected fecal manipulation behavior The reason for the failure to detect is as follows: the belt 3 slides from the pants 112 towards the chest, causing the magnet to not detach when a hand is inserted into the pants 112 from above the clothing sensor 4, resulting in a failure to detect. To prevent this from happening, such as... Figure 6 As shown in (B), the middle section of the waist belt 3 where the undressing sensor section 4 is not located, for example, a range 35 with a length of 5 to 30 cm, can be cut off, and medical adhesive tape, surgical tape, clothing adhesive tape, or other adhesive tape of the same length as the middle section range 35 and the connecting range 38 can be placed between the cut ends 36 of the middle section of the waist belt 3 to replace the cut-off portion.

[0071] In Figure 6When the belt 3 shown in (B) is worn around the waist 111, the pair of electrodes 43 are overlapped, and the buckle 33 of the detachment end 32 is attached to the size adjustment range 34. The area near the cut end 36 is pressed and fixed to the waist 111, and then the adhesive tape 37 is attached between the cut ends 36 to make it seamlessly attached and installed with the pants 112.

[0072] If the mid-section 35 of the belt 3 is replaced with adhesive tape 37, the pants 112 will fit tightly against the mid-section 35 of the belt 3, making it impossible to insert by hand, thus more reliably preventing undetected items.

[0073] Figure 7 Further illustrated is a clothing removal sensor device 2 related to another embodiment. Figure 7 (A) is a perspective view showing the main parts of the clothing removal sensor device 2. Figure 7 (B) is a photograph showing the garment mounted on the nursing gown 112. In this embodiment, the undressing sensor device 2 has two connecting portions 39 on the waistband 3. Each connecting portion 39 consists of a clothing-side magnetic component 39b and a belt-side magnetic component 39a. The clothing-side magnetic component 39b is used to clamp and hold the patient's trousers 112, while the belt-side magnetic component 39a is disposed on the waistband or the undressing sensor unit 4. Specifically, the belt-side magnetic component 39a is sewn or integrated into the waistband 3, allowing for free attachment and detachment via magnetic adsorption relative to the clothing-side magnetic component 39b disposed on the trousers 112 worn by the patient 110. Alternatively, either connecting portion 39 may be disposed on the undressing sensor unit 4, rather than on the waistband.

[0074] Thus, by providing the joint 39, when the person being cared for takes off their pants 112, the belt 3 can be ensured to move with the pants 112, thereby avoiding the situation where only the belt 3 remains at the waist while the pants 112 are taken off.

[0075] The aforementioned joint 39, except for the one composed of, for example Figure 7 Besides being formed using magnetic components made of magnetic materials, it can also be formed using fasteners, clips, or hooks that can be worn on the trousers 112 worn by the person being cared for. However, as shown... Figure 7 As shown, if it is composed of a magnetic component 39b on the clothing side and a magnetic component 39a on the waist belt side, it can be freely engaged / disengaged according to the movements of the person being cared for 110, thereby relieving the burden on the waist belt 3, that is, avoiding the electrical cut-off of the undressing sensor 4 caused by the burden on the waist belt 3 due to the movements of the caregiver.

[0076] Clothing Detection Method Using Clothing Sensor Device 2 of the Present Invention The following is for reference Figure 1 (B) Figure 2 (B) Figure 5 (A) Figure 5 (B) and Figure 8 This will explain the method for detecting clothing removal.

[0077] Wearing Step 200 If prioritizing the detection rate of undressing behavior, the undressing sensor unit 4 is positioned at any location on the left waist or front abdomen around the waist 111 of the person being cared for; if prioritizing reducing the false alarm rate of undressing behavior, the undressing sensor unit 4 is positioned on the right waist, and the belt 3 is wrapped around the waist 111 of the person being cared for (step 201). The monitoring camera 8 is activated (step 202).

[0078] Startup Step 210 The sensor unit 47, alarm unit 7 (transmission module 48, control terminal 70), and wireless repeater 72 of the clothing removal sensor device 2 are activated.

[0079] Detection step 220 The undressing sensor device 2 begins to detect the act of undressing. The voltmeter of the sensor unit 47 measures the voltage between the pair of electrodes 43, and when the voltage changes, the detection data is sent to the undressing judgment unit 5.

[0080] Step 230 of the undressing judgment The undressing judgment unit 5 pre-stores pattern data or alarm thresholds of undressing behavior in the storage unit 6. For example... Figure 5 (A) Figure 5 As shown in (B), the pattern data or alarm threshold of the undressing behavior can be average or typical pattern data or alarm thresholds of voltage changes accompanying the undressing behavior (at least one of stretching and detachment of the belt 3) obtained from multiple experiments.

[0081] For example, Figure 5 (A) Figure 5 As shown in (B), in a typical undressing action, from the start of the undressing behavior to the complete undressing process, the pattern data of the undressing behavior will repeatedly show waveforms changing from an energized (2.5V) state to a de-energized (0V) state, and then from a de-energized (0V) state back to an energized (2.5V) state. Based on the pattern data, when the first or second waveform of the initial stage of the undressing behavior is detected, it can be determined as undressing behavior.

[0082] For example, Figure 5 (A) Figure 5As shown in (B), in a typical undressing action, at the start of the undressing behavior, the alarm threshold for the undressing behavior will exhibit a waveform change that repeatedly changes from a powered (2.5V) state to a disconnected (0V) state, and then from a disconnected (0V) state back to a powered (2.5V) state. However, there is concern that a single waveform change from the powered (2.5V) state to the disconnected (0V) state could lead to complete undressing. Even if there is only a single change to the disconnected (0V) state, if the duration of the disconnected (0V) state is longer than the waveform of a typical undressing action (e.g., tens of seconds or more), it can still be considered a undressing behavior.

[0083] The undressing judgment unit 5 compares the detection data received from the sensor unit 47 with the pattern data or alarm threshold of the undressing behavior. When the similarity with the pattern data is high, or when the alarm threshold is reached, it judges it as undressing behavior (for example, the initial stage of judging it as undressing behavior (step 231)).

[0084] Alarm Step 240 When the undressing judgment unit 5 determines that the undressing behavior is the initial action, it sends the ID data of the person being cared for (room number, bed number, name, age, medical record number, other identifiable personal data, etc.), the detection data received from the sensor unit 47, the time data of the undressing behavior, and the tens of seconds of recorded data before and after the time of the occurrence obtained from the monitoring camera 8 to the control terminal 70 through the sending module 48 (transceiver).

[0085] Upon receiving the ID data, detection data, occurrence time data, and video recording data, the control terminal 70 associates the detection data, occurrence time data, and video recording data with the ID data and accumulates them in the storage unit 6 (memory) or external storage device 10 (server 11, database 12, cloud 13 on the Internet) (step 241). The accumulated data (step 241) can be used to improve the judgment criteria of the undressing judgment unit 5, namely the accuracy of the pattern data or alarm threshold of the undressing behavior, as well as to improve the detection rate of future undressing behaviors and reduce the false alarm rate.

[0086] While the data is being accumulated (step 241), the control terminal 70 will notify (step 242) the human-machine interface 71 (smartphone or tablet computer) carried by the caregiver responsible for the caregiver 110 of the ID data (room number, bed number, name, age, medical record number, etc.) of the caregiver 110 who is undressing.

[0087] Corresponding confirmation step 250 After receiving the notification (step 242), and having completed the processing of the person under care 110, the control terminal 70 confirms whether processing completion information has been input to the human-machine interface 71 (step 251). If processing completion is input, the control terminal 70 confirms the stop operation (step 252). If a stop operation is performed, control ends. If no stop operation is performed, the process returns to the detection step 220 and control continues.

[0088] Experimental Example 1 To explore the detection accuracy of undressing and fecal manipulation behaviors. against Figure 2 (B) Figure 3 and Figure 4 The conditions required for the undressing judgment unit 5 of the undressing sensor device 2 shown to improve the detection accuracy of undressing and fecal manipulation behavior were discussed below.

[0089] The content of the discussion The subjects were 31 healthy adults (equivalent to the 110 individuals under their care). The discussion steps involve installing the undressing sensor device 2 and simulating undressing and fecal manipulation. The simulated actions are then observed, along with the detection response of the undressing sensor device 2.

[0090] Evaluation Project Whether the clothing removal sensor device 2 detects any reaction during each action.

[0091] The relationship between the size of the conductive part and the detection accuracy of the clothing removal sensor device 2.

[0092] The correlation between the installation position (right waist, front, left waist) of the clothing removal sensor device 2 and the detection accuracy of the sensor device 2 in each action.

[0093] The correlation between the body size of the subject and the detection accuracy of the undressing sensor device 2.

[0094] Project simulating striptease 1. Put your right hand inside your pants and pull them down.

[0095] 2. Put your left hand inside your pants and pull them down.

[0096] 3. Put your hands inside your pants and pull them down.

[0097] 4. Use your right hand to grab the pants and pull them down.

[0098] 5. Use your left hand to grab the pants and pull them down.

[0099] 6. Use both hands to grab the pants and pull them down.

[0100] 7. Use your feet to take off your pants.

[0101] 8. The subjects took off their pants using any method they could think of.

[0102] The installation position of the clothing removal sensor device 2 and the detection rate during each clothing removal action [Table 1] Result: 1 to 3 clothes were removed.

[0103] Undressing 1: Put your right hand into your pants and take them off.

[0104] 2. Take off your clothes: Put your left hand into your pants and take them off.

[0105] Step 3: Put your hands inside your pants and pull them down.

[0106] [Table 2] Result: 4-6 clothes removed

[0107] 4. Take off your clothes: Grab your pants with your right hand and pull them off.

[0108] Step 5: Grab the pants with your left hand and pull them off.

[0109] 6. Take off your clothes: Grab your pants with both hands and pull them off.

[0110] [Table 3] Result: 7-8 people took off their clothes.

[0111] 7. Take off your clothes: Use your feet to take off your pants.

[0112] Undressing 8: The subject (the person being tested) takes off his pants using any method he can think of (most of the actions are grabbing the waistband, lifting his waist and taking off his pants).

[0113] Experiment Example 2 Simulation of fecal manipulation behavior and daily life actions Similar to Experiment 1, using Figure 2 (B) Figure 3 and Figure 4 The undressing sensor device 2 shown confirmed the detection status of fecal manipulation behavior and daily life action simulation items, and verified the detection rate and accuracy.

[0114] 〇 Fecal manipulation behavior 1. Insert your right hand into your pants from the front, reaching towards your genitals and buttocks. 2. Reach your left hand inside your pants from the front, extending it to your genitals and buttocks. 3. Reach your hands inside your pants from the front, extending them to your genitals and buttocks. 4. Reach your right hand inside your pants from behind, down to your genitals and buttocks. 5. Reach your left hand inside your pants from behind, extending it to your genitals and buttocks. 6. Reach your hands inside your pants from behind, extending them to your genitals and buttocks. 〇 Daily life actions 1. Turn over 2. Get out of bed The installation location of the undressing sensor device 2 and the detection rate in various fecal manipulation behaviors [Table 4] Result ~ Feces manipulation 1~3 ~

[0115] Feces manipulation 1: Insert your right hand into your pants from the front, reaching towards your genitals and buttocks.

[0116] Feces manipulation 2: Put your left hand into your pants from the front, reaching towards your genitals and buttocks.

[0117] Fecal manipulation 3: Put both hands into your pants from the front, reaching towards your genitals and buttocks.

[0118] [Table 5] Result: Feces were handled 4-6 times.

[0119] Feces manipulation 4: Put your right hand into your pants from behind, reaching towards your genitals and buttocks.

[0120] Feces manipulation 5: Put your left hand into your pants from behind, reaching towards your genitals and buttocks.

[0121] Fecal manipulation 6: Put your hands inside your pants from behind, reaching towards your genitals and buttocks.

[0122] The installation location of the clothing removal sensor device 2 and the false alarm rate during daily life activities [Table 6] Results of daily life actions

[0123] The installation location of the clothing removal sensor device 2 and its average detection rate and average false alarm rate [Table 7] Summary of Detection Rate and False Alarm Rate

[0124] In both undressing and fecal handling tests, the detection rate was highest when the device was worn on the left side (the left waist and abdomen), followed by a relatively high detection rate when worn on the front (the front abdomen).

[0125] In daily life, when the undressing sensor device 2 is installed on the right side (the right waist and abdomen) and the front (the front abdomen), it shows a low false alarm rate.

[0126] Assuming unilateral paralysis, the installation location, detection rate, and false alarm rate of the undressing sensor device 2 are as follows: [Table 8] Summary of Detection Rate and False Alarm Rate

[0127] Undressing 1: Put your right hand into your pants and take them off.

[0128] 2. Take off your clothes: Put your left hand into your pants and take them off.

[0129] 4. Take off your clothes: Grab your pants with your right hand and pull them off.

[0130] Step 5: Grab the pants with your left hand and pull them off.

[0131] Feces manipulation 1: Insert your right hand into your pants from the front, reaching towards your genitals and buttocks.

[0132] Feces manipulation 2: Put your left hand into your pants from the front, reaching towards your genitals and buttocks.

[0133] Feces manipulation 4: Put your right hand into your pants from behind, reaching towards your genitals and buttocks.

[0134] Feces manipulation 5: Put your left hand into your pants from behind, reaching towards your genitals and buttocks.

[0135] Examination of detection rate and false alarm rate The detection rate for undressing actions is about 90%, the detection rate for fecal manipulation is 78% to 93%, and the false alarm rate is 4% to 11%.

[0136] In cases of paralysis, the most suitable effective installation position for the undressing sensor device 2 is from the front, as it has a high detection rate and a low false alarm rate. If the patient turns over less frequently and there is more movement involving feces, installation on the left side is also effective.

[0137] Experimental Example 3 In this experiment, the wearing experience of the undressing sensor device 2 was evaluated from the perspectives of weight, sense of incongruity, and discomfort.

[0138] [Table 9] Sensor wearing comfort

[0139] Other thoughts of the respondents (the subjects of the survey) Concerns were raised regarding the electrode wires (the detection wire bundle 45) (3 people). It won't fall off even when you turn over, so you can wear it with confidence (1 person). Experiment Example 4 Ten healthy adults were asked to wear patient clothing and take the following medications: Figure 7 The device shown has a undressing sensor with a joint in the waistband. It simulates undressing, fecal manipulation, and daily life activities to investigate the detection rate and false alarm rate under each action.

[0140] The actions simulating undressing are as follows.

[0141] 1. Put your right hand inside your pants and pull them down.

[0142] 2. Put your left hand inside your pants and pull them down.

[0143] 3. Put your hands inside your pants and pull them down.

[0144] 4. Grab the pants with your right hand and pull them off.

[0145] 5. Grab the pants with your left hand and pull them off.

[0146] 6. Grab the pants with both hands and pull them off.

[0147] 7. Reach your right hand in from the foot side of the sensor and pull down your pants.

[0148] 8. Reach your left hand in from the foot side of the sensor and pull down the pants.

[0149] 9. Reach your hands in from the foot side of the sensor and pull down the pants.

[0150] 10. Use your feet to take off your pants.

[0151] In addition, the actions that simulate defecation are as follows.

[0152] 1. Put your right hand into your pants from the front. 2. Reach your left hand into your pants from the front. 3. Put both hands into your pants from the front. 4. Insert your right hand into your pants from the foot side of the sensor. 5. Insert your left hand into your pants from the foot side of the sensor. 6. Put both hands inside your pants from the foot side of the sensor. 7. Reach your right hand into your pants from behind. 8. Reach your left hand inside your pants from behind. 9. Put both hands inside your pants from behind. The following are simulated daily life actions (false alarm rate).

[0153] 1. Turn over (4-5 times) 2. Get up When performing the above simulated actions, the detection rate for undressing behavior was 97.0%, the detection rate for fecal manipulation behavior was 95%, and the false alarm rate for daily life actions was 5.0%. This improvement in detection rate is due to the ability to prevent the act of reaching under the belt from the foot side, thereby further improving the detection rate and accuracy.

[0154] Industrial application possibilities The undressing sensor device of the present invention can be used in clinical medicine, nursing, childcare, health care and hygiene fields, as well as in the manufacture and sale of nursing clothes, children's clothing and other clothing, diapers, diaper pads and other nursing products, and the manufacture and sale of electronic products such as sensors, computers, software, and communications.

[0155] Symbol Explanation 1. Clothing removal alarm system; 2. Clothing removal sensor device; 3. Belt; 30. Substrate tape; 31. Anti-slip pads; 32. Detachable end; 33. Face button; 34. Size adjustment range; 35. Midway section; 36. Cut-off end; 37. Applying adhesive tape; 38. Connection range; 4. Clothing removal sensor unit; 40. Base (face buckle); 41. Magnetic suction part; 42. Electrostatic membrane; 43. Electrode; 44. Connect the plug; 45. Inspect the wiring harness; 46. ​​Terminal; 460. Sheath pole; 461. Sliding pole; 47. Sensor unit; 48. Sending module; 5. Undressing Judgment Section; 6. Storage section; 7. Alarm Department; 70. Control terminal; 71. Human-machine interface; 72. Wireless repeater; 8. Surveillance cameras; 9. Database; 10. External storage device; 11. Server; 12. Database; 13. The cloud on the Internet; 14. Nurse call system (nurse call controller, transceiver); 15. Bus; 110. The person being cared for; 111. Waist; 112. Nursing supplies (pants, diapers); Clothing removal test method 200. Wearing steps; 202. Start the surveillance camera 8; 210. Startup steps; 220. Testing steps; 230. Steps for determining whether clothing has been removed; 231. This is judged to be the initial stage of undressing behavior; 240. Alarm Procedure; 241. Data accumulation; 242. Notify the caregiver; 250. Corresponding confirmation steps; 251. Confirmation that the process is complete; 252. Confirm to stop operation. Claims (as amended under Article 19 of the Treaty) 1. A clothing removal sensor device, characterized in that it comprises: A belt that can be wrapped around the waist of the person being cared for; A clothing removal sensor unit that detects at least one of stretching and loosening of the belt; An alarm unit that alerts the caregiver when the undressing sensor unit detects at least one of stretching or detachment of the belt. 2. The clothing removal sensor device according to claim 1, characterized in that it comprises: A belt that can be wrapped around the waist of the person being cared for; A clothing removal sensor unit that detects at least one of stretching and loosening of the belt; The alarm unit alerts the caregiver when the undressing sensor unit detects at least one of the stretching and detachment of the belt. The belt section and / or the undressing sensor section are provided with a connecting part that engages with the clothing of the person being cared for. 3. The clothing removal sensor device according to claim 1 or 2, characterized in that it comprises: The storage unit stores pattern data or alarm thresholds for undressing behavior. The clothing removal determination unit determines whether a clothing removal behavior is occurring based on the detection data from the clothing removal sensor unit when it detects at least one of stretching and detachment of the belt. The clothing removal judgment unit compares the detection data from the clothing removal sensor unit with pattern data of the clothing removal behavior or an alarm threshold. If the similarity to the pattern data is high, or if the alarm threshold is reached, it is judged as clothing removal behavior. When the undressing judgment unit determines that the act is undressing, the alarm unit alerts the caregiver. 4. The clothing removal sensor device according to claim 1 or 2, characterized in that, The clothing removal sensor unit includes: A pair of electrodes are respectively disposed at both ends of the belt; A power source that applies a voltage between the pair of electrodes; A voltmeter for detecting the voltage between the pair of electrodes; Each of the pair of electrodes has a magnetic attraction part with different magnetic poles. Even if at least one of the stretching and detachment of the belt is detected, the pair of electrodes will reconnect if the clothing has not been removed. 5. The clothing removal sensor device according to claim 1 or 2, characterized in that, The alarm unit includes: The transmitting module outputs at least one of the detection data from the clothing removal sensor and the judgment signal from the clothing removal judgment unit; The control terminal receives the output signal from the transmitting module and outputs a notification. The human-machine interface receives notification outputs from the control terminal. 6. The clothing removal sensor device according to claim 1 or 2, comprising: Surveillance cameras, which capture images of the person being cared for; A database that communicates with the control terminal and stores the ID data of the person being cared for; The software associates at least one of the detection data from the undressing sensor and the judgment signal from the undressing judgment unit, along with their time information, with the ID data of the person being cared for and accumulates it in the database. Furthermore, the software associates the ID data, time information, and detection data from the undressing sensor, or the judgment signal from the undressing judgment unit, the time information, and the ID data with surveillance camera image data from tens of seconds before and after the detection of the belt stretching or detachment, and accumulates them together in the database. 7. A method for detecting clothing removal using the clothing removal sensor device according to claim 1 or 2, comprising the following steps: Wearing procedure: If the detection rate of undressing behavior is given priority, the undressing sensor is positioned at any position on the left waist or front abdomen around the waist of the person being cared for. If the false alarm rate of undressing behavior is given priority, the undressing sensor is positioned on the right waist, and the belt is wrapped around the waist of the person being cared for. The startup step involves activating the clothing removal sensor unit. In the detection step, the clothing removal sensor detects at least one of the stretching and detachment of the waist belt; In the alarm step, when the detection step detects the act of undressing, the alarm unit outputs an alarm signal. 8. A method for detecting clothing removal using the clothing removal sensor device of claim 2, comprising the following steps: In the detection step, the clothing removal sensor detects at least one of the stretching and detachment of the belt; In the clothing removal judgment step, when the clothing removal sensor detects at least one of stretching and detachment in the detection step, the clothing removal judgment unit determines whether it is a clothing removal behavior. In the alarm step, when the undressing judgment unit determines that the act is undressing during the detection step, the alarm unit outputs an alarm signal.

Claims

1. A clothing removal sensor device, characterized in that, have: A belt that can be wrapped around the waist of the person being cared for; A clothing removal sensor unit that detects at least one of stretching and loosening of the belt; An alarm unit that alerts the caregiver when the undressing sensor unit detects at least one of stretching or detachment of the belt.

2. The clothing removal sensor device according to claim 1, characterized in that, The belt section and / or the undressing sensor section are provided with a connecting part that engages with the clothing of the person being cared for.

3. The clothing removal sensor device according to claim 1, characterized in that, include: The storage unit stores pattern data or alarm thresholds for undressing behavior. The clothing removal determination unit determines whether a clothing removal behavior is occurring based on the detection data from the clothing removal sensor unit when it detects at least one of stretching and detachment of the belt. The clothing removal judgment unit compares the detection data from the clothing removal sensor unit with pattern data of the clothing removal behavior or an alarm threshold. If the similarity to the pattern data is high, or if the alarm threshold is reached, it is judged as clothing removal behavior. When the undressing judgment unit determines that the act is undressing, the alarm unit alerts the caregiver.

4. The clothing removal sensor device according to claim 1, characterized in that, The clothing removal sensor unit includes: A pair of electrodes are respectively disposed at both ends of the belt; A power source that applies a voltage between the pair of electrodes; A voltmeter for detecting the voltage between the pair of electrodes; Each of the pair of electrodes has a magnetic attraction part with different magnetic poles. Even if at least one of the stretching and detachment of the belt is detected, the pair of electrodes will reconnect if the clothing has not been removed.

5. The clothing removal sensor device according to claim 1, characterized in that, The alarm unit includes: The transmitting module outputs at least one of the detection data from the clothing removal sensor and the judgment signal from the clothing removal judgment unit; The control terminal receives the output signal from the transmitting module and outputs a notification. The human-machine interface receives notification outputs from the control terminal.

6. The clothing removal sensor device according to claim 1, comprising: Surveillance cameras, which capture images of the person being cared for; A database that communicates with the control terminal and stores the ID data of the person being cared for; The software associates at least one of the detection data from the undressing sensor and the judgment signal from the undressing judgment unit, along with their time information, with the ID data of the person being cared for and accumulates it in the database. Furthermore, the software associates the ID data, time information, and detection data from the undressing sensor, or the judgment signal from the undressing judgment unit, the time information, and the ID data with surveillance camera image data from tens of seconds before and after the detection of the belt stretching or detachment, and accumulates them together in the database.

7. A method for detecting clothing removal using the clothing removal sensor device of claim 1, comprising the following steps: Wearing procedure: If the detection rate of undressing behavior is given priority, the undressing sensor is positioned at any position on the left waist or front abdomen around the waist of the person being cared for. If the false alarm rate of undressing behavior is given priority, the undressing sensor is positioned on the right waist, and the belt is wrapped around the waist of the person being cared for. The startup step involves activating the clothing removal sensor unit. In the detection step, the clothing removal sensor detects at least one of the stretching and detachment of the waist belt; In the alarm step, when the detection step detects the act of undressing, the alarm unit outputs an alarm signal.

8. A method for detecting clothing removal using the clothing removal sensor device of claim 2, comprising the following steps: In the detection step, the clothing removal sensor detects at least one of the stretching and detachment of the belt; In the clothing removal judgment step, when the clothing removal sensor detects at least one of stretching and detachment in the detection step, the clothing removal judgment unit determines whether it is a clothing removal behavior. In the alarm step, when the undressing judgment unit determines that the act is undressing during the detection step, the alarm unit outputs an alarm signal.

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