JP2022049953A - Method performed by computer in order to provide information for determining state of cared person, behavior detection device, and system - Google Patents

Abstract

To provide a technique for objectively grasping daily living behavior of a cared person.SOLUTION: In a monitoring system, processing executed by a management device includes the steps of: receiving S610 a request of care information based on operation given to an input device; accessing a database of the care information of a cared person stored in a storage device to acquire S620 a cared person's care time; reading S630 predetermined standard time (care need certification standard time) for care need certification from the storage device; comparing care time with the care need certification standard time to estimate S640 a care needs level (for example, Requiring help 1, 2, Long-term care levels 1 to 5); and outputting S650 results of care need certification to be presumed as a result of comparison.SELECTED DRAWING: Figure 6

Description

The present disclosure relates to quantification of activities of daily living, and more specifically to a technique for measuring the time during which a care recipient is being cared for by a caregiver.

In a long-term care facility, a monitoring system may be used to grasp the activities of daily living of the care recipient (resident of the facility). Regarding the watching system, for example, Japanese Patent Application Laid-Open No. 2017-117423 (Patent Document 1) discloses "a watching system capable of grasping daily activities including the walking speed of a person to be watched". This watching system includes "a plurality of slave units 2 (2A to 2G) installed in the residence H and a master unit 3. Each slave unit 2 transmits a notification signal to the master unit 3 when it detects a target person. The master unit 3 calculates the travel time from the bedroom PD to the toilet PD of the person to be watched based on the time data of the notification signal from the slave unit 2D and the time data of the notification signal from the slave unit 2E. The walking speed of the person being watched over is calculated based on the travel time "(see [Summary]). Further, Japanese Patent Application Laid-Open No. 2015-42241 (Patent Document 2) discloses "a medical information processing apparatus that makes it possible to provide display information that makes it easy to evaluate a walking situation".

JP-A-2017-117423 JP-A-2015-42241

Conventionally, the long-term care certification of a long-term care recipient has been performed based on the visual inspection by the investigator and the diagnosis result of the attending physician. The care recipient may happen to be immobile or behave in a manner that makes them immobile when viewed by the investigator. Therefore, there is a possibility that the certification for long-term care may not be performed accurately. Therefore, there is a need for a technique for accurately certifying the care recipient as requiring long-term care.

The present disclosure has been made in view of the background as described above, and according to a certain embodiment, a technique for providing information for supporting certification for long-term care is disclosed.

According to certain embodiments, a method performed on a computer is provided to provide information for determining the condition of the care recipient. This method has a step of receiving a video signal output from a video sensor provided for photographing the room of the care recipient, an acceleration sensor, and a user from a first communication terminal attached to the user. It is provided with a step of receiving the identification information and the output of the accelerometer, and a step of determining the state of the care recipient based on the image of the living room and the output of the accelerometer.

According to other embodiments, a behavior detection device is provided. The behavior detection device includes an input interface for receiving an input of a video signal, a receiving device for receiving the radio signal, and a processor for detecting the behavior based on the video signal and the radio signal. The processor receives the video signal output from the video sensor provided for photographing the room of the care recipient, has an acceleration sensor, and has the user's identification information from the first communication terminal attached to the user. And, the output of the accelerometer is received, and the state of the care recipient is determined based on the image of the living room and the output of the accelerometer.

According to still other embodiments, the system is provided. The system includes a first communication terminal having an accelerometer and a sensor device for receiving radio signals. The sensor device includes a camera, a receiving device that receives a signal, and a processor that performs arithmetic processing using the signal. The processor receives a video signal output from a video sensor provided in the room to photograph the room of the care recipient, and from the first communication terminal, the identification information of the user of the first communication terminal and the acceleration. The output of the sensor is received, and the condition of the care recipient is determined based on the image of the living room and the output of the accelerometer.

According to a certain embodiment, the caregiver's caregiving time is measured, so that the activities of daily living of the caregiver can be objectively grasped.

The above and other objects, features, aspects and advantages of the invention will become apparent from the following detailed description of the invention as understood in connection with the accompanying drawings.

It is a figure which shows an example which measures the activities of daily living of a care recipient 800 according to a certain embodiment. It is a block diagram which shows an example of the structure of the monitoring system used in the care facility according to a certain embodiment. It is a figure which shows the locus of the signal acquired when the care recipient 800 is cared for by a caregiver 600. It is a figure which shows the outline of the data which can be acquired by the measuring device for each of the care recipient 800 and the caregiver 600. It is a flowchart which shows a part of the process which the control device 101 of a sensor box 100 executes. It is a flowchart which shows a part of the processing executed by the control device 201 of the management device 200 according to a certain embodiment. It is a flowchart which shows a part of the process which the wearable device 400 which has the function of estimating the distance with another wearable device 400 performs.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are designated by the same reference numerals. Their names and functions are the same. Therefore, the detailed description of them will not be repeated.

[Outline of understanding activities of daily living]
With reference to FIG. 1, one aspect of grasping the activities of daily living (ADL) of the care recipient according to a certain embodiment will be described. FIG. 1 is a diagram showing an example of measuring the activities of daily living of the care recipient 800 according to a certain embodiment. Activities of daily living are observed, for example, at the home of the care recipient 800 or when the care recipient has already moved into the care facility.

In the room 10 assigned to the care recipient 800's home or care facility, the sensor box 100 is attached to the ceiling. A bed 901 is arranged in the living room 10. The care recipient 800 may spend more time in bed 901, depending on the degree of care required. The care recipient 800 is wearing a wearable device 400A.

The wearable device 400A has a signal transmission function, and transmits a signal 140 at a predetermined timing or based on receiving a signal transmission request. The signal 140 may include acceleration data, time stamps, and the like.

In a certain aspect, in the living room 10, the caregiver 600 assists the care recipient 800. The caregiver 600 is wearing a wearable device 400B. When the care recipient 800 lives at home, the caregiver 600 is a family member or a home-visit helper of the care recipient 800. When the care recipient 800 lives in a facility, the caregiver 600 is a care staff member of the facility.

The wearable device 400B has a signal transmission function, and transmits a signal 150 at a predetermined timing or based on receiving a signal transmission request. The signal 150 may include acceleration data, time stamps, and the like.

Wearable devices 400A and 400B are collectively referred to as wearable devices 400. The wearable device 400 is, for example, a wristwatch type, a bracelet type, or the like, but may have other forms. The communication standard of the wearable device 400 is, for example, Bluetooth (registered trademark), but other wireless communication standards may be used. Further, the housing including the cover of the wearable device 400 may be formed with a reflective surface or a reflective object such as a mirror so as to stand out from surrounding objects when photographed by a camera, for example.

The sensor box 100 receives the signal 140 and the signal 150. The sensor box 100 further includes a storage device, a control device, a communication device, and each sensor (not shown). Each sensor may include a camera, a Doppler sensor, and the like. The configuration of the sensor box 100 will be described later.

In a certain aspect, the sensor box 100 uses the video signal output from the camera as an image sensor and the output signal transmitted from the wearable device 400A worn by the care recipient 800 to the care recipient 800. The state in the living room 10 is detected. The video signal includes the locus of movement of the care recipient 800. The output signal may include identification information of the user of the wearable device 400A (for example, the name or resident number of the care recipient 800) and the detected acceleration signal. In another aspect, the identification information of the user is stored in another device associated with the wearable device 400A (for example, a server that manages the user of the wearable device 400, a management device 200, etc.). May be good. In this case, the wearable device 400A may acquire the identification information of the user stored in the other device before transmitting the signal 140.

For example, the sensor box 100 holds layout information prepared in advance as a place for a bed, a toilet, or other equipment in the living room 10 in a memory. The sensor box 100 estimates the approximate position of the care recipient 800 using the layout information and the image signal.

Further, the sensor box 100 detects the movement of the care recipient 800 by using the output signal sent from the wearable device 400A. As an example, if the care recipient 800 is able to walk independently, albeit slowly, fluctuations in acceleration (eg, periodic fluctuations in response to vertical movement of the body) can be detected. On the other hand, if the care recipient 800 is in a state of requiring care to the extent that he / she cannot move by himself / herself, periodic fluctuations in acceleration may not be detected. Therefore, in a certain aspect, when the movement of the care recipient 800 is detected from the image signal and the fluctuation of the acceleration is further detected, the sensor box 100 states that the care recipient 800 is in a state of being able to walk independently. It can be judged. In another aspect, when the care recipient 800 is detected from the image signal and the time during which the acceleration fluctuation is not detected from the output signal from the wearable device 400A exceeds a predetermined time, the sensor box 100 is set to the sensor box 100. The care recipient 800 may determine that he / she cannot walk on his / her own.

The sensor box 100 uses the signals 140 and 150 and the signals acquired by each sensor to calculate the proximity between the care recipient 800 and the caregiver 600. In one aspect, the accessibility is calculated as the distance between the care recipient 800 and the caregiver 600. The distance is obtained, for example, by detecting the caregiver 600 and the care recipient 800 in an image of the living room 10 and calculating the distance between the caregiver 600 and the care recipient 800. In another aspect, the wearable device 400A worn by the care recipient 800 and the wearable device 400B worn by the caregiver 600 communicate with each other and, for example, use the AoA method to locate the wearable device 400 that is the source of the signal. May be specified.

When the care recipient 800 is in the living room 10, when the caregiver 600 performs care, the sensor box 100 receives the signal 140 transmitted from the wearable device 400A and the signal 150 transmitted from the wearable device 400B. obtain. Further, the sensor box 100 uses the image data obtained by photographing the living room 10 from the built-in camera (described later) and the data acquired from the signal 140 and the signal 150 to use the wearable devices 400A and 400B in the image. To identify. The identification of the wearable devices 400A and 400B is performed, for example, by extracting two regions having a specific color (for example, shown as reflected light) from the image.

The sensor box 100 further calculates the centers of gravity of the two regions, and calculates the distance between the centers of gravity as the distance between the regions. If this distance is less than a predetermined distance, the caregiver 600 is in close proximity to the care recipient 800, so that the sensor box 100 is assisted by the caregiver 600 in the caregiver 800. It can be determined that it is. On the contrary, when the distance is larger than a predetermined distance, the sensor box 100 determines that the caregiver 600 is away from the care recipient 800, and the caregiver 600 assists the caregiver 800. It can be presumed that it has not been received.

[System hardware configuration]
The configuration of the equipment used in the long-term care facility will be described with reference to FIG. FIG. 2 is a block diagram showing an example of a configuration of a monitoring system 20 used in a long-term care facility according to an embodiment. The monitoring system 20 includes a sensor box 100, a management device 200, a mobile terminal 300, a wearable device 400, a care call slave unit 500, a door sensor 510, a toilet sensor 520, an odor sensor 530, and a vital sensor 540. To prepare for.

[Sensor Box 100]
The sensor box 100 is provided on the ceiling of the living room 10 in the facility or the home of the care recipient 800. The sensor box 100 acquires the movement history of the care recipient 800 in the living room 900 and the video and / or photograph in the living room 900, and transmits it to the management device 200.

The sensor box 100 includes a control device 101, a ROM (Read Only Memory) 102, a RAM (Random Access Memory) 103, a communication interface 104, a camera 105, a Doppler sensor 106, a wireless communication device 107, and a storage device. It includes 108 and a beacon receiving device 109.

The control device 101 controls the operation of the sensor box 100. The control device 101 is composed of, for example, at least one integrated circuit. The integrated circuit is composed of, for example, at least one CPU (Central Processing Unit), at least one ASIC (Application Specific Integrated Circuit), at least one FPGA (Field Programmable Gate Array), or a combination thereof.

The ROM 102 may store various programs and settings executed by the control device 101. The RAM 103 temporarily stores a program loaded from the ROM 102 or the storage device 108, data received via the wireless communication device 107 or the beacon receiving device 109, and the like. The control device 101 executes the program read in the RAM 103.

The communication interface 104 may include an interface for wired or wireless communication with the management device 200 and an antenna (not shown). The sensor box 100 transmits / receives data to / from the management device 200 and other communication devices by wire or wirelessly. Other communication devices include, for example, a management device 200, a mobile terminal 300, and other communication terminals. In still other aspects, the communication interface 104 may include a slot for accepting a SIM (Subscriber Identity Module) card. By installing the SIM card in the slot, the sensor box 100 can communicate data with other information communication devices via a mobile phone line.

The camera 105 is a near-infrared camera in one implementation example. The near-infrared camera includes an IR (Infrared) projector that emits near-infrared light, and can take an image and / or a photograph showing the inside of the living room 900 even at night. In another embodiment, the camera 105 is a surveillance camera that receives only visible light. In still another embodiment, a 3D sensor or a thermography camera may be used as the camera 105. The sensor box 100 and the camera 105 may be integrally configured or may be configured separately.

The Doppler sensor 106 is, for example, a microwave Doppler sensor, which radiates and receives radio waves to detect the behavior (operation) of an object in the living room 900. As a result, the biometric information of the care recipient 800 in the living room 900 can be detected. In one example, the Doppler sensor 106 radiates microwaves in the 24 GHz band toward the bed 901 of each room 900 and receives the reflected waves reflected by the care recipient 800. The reflected wave is Doppler-shifted by the operation of the care recipient 800. The Doppler sensor 106 can detect the respiratory state and heart rate of the care recipient 800 from the reflected wave.

The wireless communication device 107 receives each signal emitted from the care call slave unit 500, the door sensor 510, the toilet sensor 520, the odor sensor 530, and the vital sensor 540, and transmits the received signal to the control device 101. For example, the care call slave unit 500 includes a care call button 501. When the care call button 501 is operated, the care call slave unit 500 transmits a signal indicating that the operation has been performed to the wireless communication device 107. The door sensor 510, the toilet sensor 520, the odor sensor 530, and the vital sensor 540 transmit the detection signals corresponding to each to the wireless communication device 107.

The storage device 108 is realized by, for example, a built-in HDD (Hard Disk Drive) or SSD (Solid State Drive). In other aspects, the storage device 108 may be configured to be removable. In this case, the storage device 108 can be realized as a memory card. The storage device 108 may store the video and / or photograph taken by the camera 105 and the detection information of the Doppler sensor 106.

In one aspect, the storage device 108 holds placement information of the space in which the sensor box 100 is installed (eg, own room, living room, corridor, etc. in a home or facility). The placement information is used to estimate the location and condition of the user of the room (eg, a resident of a home or a resident of a facility).

The beacon receiving device 109 includes an array antenna and receives a beacon signal. The beacon signal is transmitted by, for example, a wearable device 400 or other beacon signal transmitting device. In one aspect, the beacon signal includes the identification number of the wearable device. Further, when the beacon receiving device 109 complies with the Bluetooth 5.1 standard, the beacon receiving device 109 calculates the relative direction of the signal from the signal transmitted from the wearable device 400 by the receiving angle (AoA (Angle of Arrival)) method, and is wearable in real time. The position of the device 400 can be detected.

Further, when the wearable device 400 also complies with the Bluetooth 5.1 standard, the wearable device 400 (for example, the wearable device 400A) includes an array antenna and is transmitted from another wearable device 400 (for example, the wearable device 400B) by the reception angle method. From the signal, the relative direction of the signal can be calculated and the position can be detected in real time. The wearable device 400A transmits a signal 140 including the detected position information of the wearable device 400B and identification data of the wearable device 400B, and the sensor box 100 may receive the signal.

In another aspect, conversely, the wearable device 400B can detect the position of the wearable device 400B by the AoA method using the signal received from the wearable device 400A. In this case, the wearable device 400B may transmit the identification data and the position information of the wearable device 400A in addition to the identification data and the time data of the wearable device 400B. The transmitted signal 150 may be received by the sensor box 100.

In one aspect, the control device 101 stores in the storage device 108 the movement history of the care recipient 800 acquired by analyzing the video and / or the photograph and / or the detection information of the Doppler sensor 106. May be good. The movement history of the care recipient 800 includes at least the location information and the time stamp of the care recipient 800. In another aspect, the control device 201 may store the furniture arrangement information in the living room 900 acquired by analyzing the video and / or the photograph in the storage device 108.

The sensor box 100 periodically acquires video and / or photographs and detection information of the Doppler sensor 106 from the received signal. Then, the sensor box 100 may transmit these images and / or photographs and the detection information of the Doppler sensor 106 to the management device 200. Further, the sensor box 100 may transmit the movement history of the care recipient 800 and the arrangement information of the bed or other furniture in the living room 900 to the management device 200. When transmitting various information to the management device 200, the sensor box 100 may include an identifier uniquely identifying the living room 900 or the sensor box 100 in the information to be transmitted. The management device 200 can specify which room 900 information has been received by referring to the identifier included in the received information.

Since the signal 140 and the signal 150 include the identification information of the wearable device 400, the sensor box 100 can detect who is present in the living room 10.

Further, when the care recipient 800 is being cared for by the caregiver 600, the care recipient 800 may be inconvenienced in movement. Therefore, the movement or state change of the care recipient 800 may be caused. It may be less than the movement or change of condition of the caregiver 600. In that case, the fluctuation of the acceleration included in the signal 140 transmitted from the wearable device 400A worn by the care recipient 800 may be smaller than the fluctuation of the acceleration of the wearable device 400B worn by the caregiver 600.

Therefore, for example, when the control device 101 detects an image signal of a person in the living room 10 and further detects the reception of the signal 140, it can determine that the care recipient 800 is in the room. In that case, if the fluctuation of the acceleration included in the signal 140 is smaller than the preset threshold value, or if the acceleration hardly changes, the control device 101 is lying down on the care recipient 800. Can be determined. At this time, if the time when the signal 140 is received by the sensor box 100 is in the bedtime zone (for example, from 9:00 pm to 7:00 am), it is determined that the care recipient 800 may be sleeping. Can be. On the other hand, when the time when the signal 140 is received by the sensor box 100 is a time zone different from the time zone after meals or other bedtime, the control device 101 cannot move the body of the care recipient 800, and the care is provided. It can be presumed that it is in the required state.

In another aspect, the control device 101 may detect a person based on the signal from the camera 105 and may also receive the signal 140 and the signal 150. In this case, the control device 101 detects that two people are present in the living room 10. Further, when the acceleration included in the signal 140 is smaller than the acceleration included in the signal 150, or when the rate of change of the acceleration contained in the signal 140 is smaller than the rate of change of the acceleration included in the signal 150, the control device 101 , The caregiver 600 may be determined to be moving for the care recipient 800. In this case, when the images corresponding to the caregiver 600 and the care recipient 800 are detected as one (in a connected state), the control device 101 causes the caregiver 600 to care for the care recipient 800. It can be determined that it is close to.

In another aspect, if the distance between the caregiver 600 and the care recipient 800 is equal to or less than a predetermined threshold (for example, 0.3 m, 0.5 m, etc.) for a certain period of time, control is performed. The device 101 may determine that the care recipient 800 is being cared for by the caregiver 600. In this case, the distance between the care recipient 800 and the caregiver 600 may be calculated as the distance between the wearable device 400B and the wearable device 400A by, for example, the AoA method, and may be included in the signal 140A or the signal 150.

[Management device 200]
The management device 200 includes a control device 201, a ROM 202, a RAM 203, a communication interface 204, a display interface 205, an operation interface 207, and a storage device 220.

When the management device 200 is connected to the sensor box 100 arranged in the facility, the management device 200 aggregates the information of each care recipient 800 obtained from each living room 900, and keeps the state of each care recipient 800 steady. Can be monitored. In another aspect, when the sensor box 100 is provided at the home of the care recipient 800, the management device 200 communicates with the communication interface 104 of the sensor box 100 via an internet line or a mobile phone line network. obtain.

The control device 201 controls the operation of the management device 200. The control device 201 is composed of, for example, at least one integrated circuit. The integrated circuit is composed of, for example, at least one CPU, at least one ASIC, at least one FPGA, or a combination thereof.

The ROM 202 may store various programs and settings executed by the control device 201. The RAM 203 temporarily holds a program loaded from the ROM 202 or the storage device 220, data generated by the control device 201, data transmitted from the sensor box 100, and the like. The control device 201 executes the program read in the RAM 203.

The communication interface 204 may include an interface for communicating with other communication devices by wire or wirelessly, and an antenna (not shown). The management device 200 transmits / receives data to / from an external communication device via the communication interface 204. External communication equipment includes, for example, a sensor box 100.

The display interface 205 is connected to the display 206, and sends an image signal for displaying an image to the display 206 according to a command output from the control device 201.

The operation interface 207 accepts the connection of the input device 209. The input device 209 is, for example, a mouse, a keyboard, a touch panel, or other device capable of accepting a user's input operation. The operation interface 207 includes, for example, a USB (Universal Serial Bus) terminal. The operation interface 207 receives a signal output in response to a user operation from the input device 209, and sends the signal to the control device 201.

The storage device 220 may hold various information received from the sensor box 100, profile information of the care recipient 800, and profile information of the living room 900. The storage device 220 may be realized, for example, by an HDD or SSD. In another aspect, a memory card, DVD or other removable non-volatile data recording medium may constitute the storage device 220.

In one aspect, the control device 201 receives an input to select the care recipient 800 via the operating interface 207. The control device 201 has, for example, within a certain period (one week, one month, etc.) based on the data stored in the storage device 220 or the data received from the sensor box 100 for the selected care recipient 800. , The time of assistance from the caregiver 600 can be aggregated. Further, the control device 201 compares the totaled time with a predetermined standard for determining the degree of care required, measures the activities of daily living of the care recipient 800 at that time, and measures the measurement result. Can be output to the display 206. The measurement result may include, for example, a determination result of certification for long-term care, which is assumed according to the caregiving time.

In another aspect, the management device 200 may execute each process executed by the control device 101 of the sensor box 100 by receiving each signal received by the sensor box 100. In this case, the control device 201 of the management device 200 uses the video signal from the camera 105 and the data included in the signal 140 and the signal 150 to determine whether or not the care recipient 800 is receiving care. Can be estimated.

[Mobile terminal 300]
The mobile terminal 300 is used by the caregiver 600 to communicate with the management device 200 or another caregiver 600. The mobile terminal 300 includes a control device 301, a RAM 303, a communication interface 304, a display 305, an input device 306, and an internal memory 320.

The control device 301 controls the operation of the mobile terminal 300. The control device 301 is composed of, for example, at least one integrated circuit. The integrated circuit is composed of, for example, at least one CPU, at least one ASIC, at least one FPGA, or a combination thereof. The RAM 303 temporarily stores a program or the like loaded from the internal memory 320. The control device 301 executes the program read in the RAM 303.

The communication interface 304 includes a wireless interface and an antenna (not shown). The mobile terminal 300 exchanges data with an external communication device via the antenna and an access point (not shown). External communication devices include, for example, a sensor box 100, a management device 200, a mobile terminal 300 used by another caregiver 600, and the like.

The display 305 is realized by, for example, a liquid crystal monitor or an organic EL (Electro Luminescence) monitor. The input device 306 is realized, for example, by a touch sensor superimposed on the display 305. The touch sensor receives a touch operation that gives a command to the mobile terminal 300, and outputs the content of the operation to the control device 301.

The internal memory 320 is, for example, a storage medium such as an eMMC (Embedded Multimedia Card). As an example, the internal memory 320 stores a program executed by the control device 301, but the program is stored in a storage device other than the internal memory 320 if the storage device is accessible to the control device 301. May be good.

[Wearable device 400]
The wearable device 400 includes a beacon transmitting device 410, a beacon receiving device 420, a communication interface 403, a storage device 404, a RAM 405, a control device 406, and an acceleration sensor 407.

The beacon transmitting device 401 transmits a beacon signal using a short-range wireless technology such as BLE (Bluetooth Low Energy). The beacon signal is transmitted at predetermined time intervals or based on the transmission instruction given to the wearable device 400. The transmitted beacon signal is received by the sensor box 100, another wearable device 400 or other beacon signal receiving device.

The beacon receiving device 402 may receive a beacon signal transmitted from another wearable device 400 or other beacon signal transmitting device.

The communication interface 403 communicates with the sensor box 100 using WiFi® or another wireless communication method of Bluetooth.

The storage device 404 holds the data non-volatilely. The storage device 404 is realized by, for example, a flash memory or the like. In other aspects, SD memory cards and other removable data recording media may be used. In one aspect, the storage device 404 holds, for example, the identification data of the wearable device. Further, the storage device 404 can sequentially store the position information of the other wearable device 400 detected from the signal received from the other wearable device 400 and the detection time.

The RAM 405 temporarily holds the data. The retained data includes the position information of the other wearable device 400 detected from the signal received from the other wearable device 400, and the detection time.

The control device 406 controls the operation of the wearable device 400. The control device 406 is composed of, for example, at least one integrated circuit. The integrated circuit is composed of, for example, at least one CPU, at least one ASIC, at least one FPGA, or a combination thereof.

The accelerometer 407 detects a change in the speed of vertical movement of the wearable device 400. The detection result is used to calculate the number of steps of the user of the wearable device 400.

[Long-term care status detection]
With reference to FIG. 3, the detection that the care recipient 800 is being cared for by the caregiver 600 will be described. FIG. 3 is a diagram showing a locus of a signal acquired when the care recipient 800 is cared for by the caregiver 600. The locus can be derived from the signal acquired by the sensor box 100 after the caregiver 600 or the care recipient 800 has entered the room through the door 390.

The care recipient 800 is wearing a wearable device 400A. The caregiver 600 is wearing a wearable device 400B. While the caregiver 600 is in close proximity to the care recipient 800, the wearable devices 400A, 400B may transmit signals 140, 150, respectively. In one aspect, the signals 140, 150 are transmitted at predetermined time intervals.

The signal 140 transmitted by the wearable device 400A may include identification data of the wearable device 400A, identification data of the wearable device 400B, and location information. The signal 140 transmitted by the wearable device 400A may include identification data of the wearable device 400A, identification data of the wearable device 400B, and location information. The signal 150 transmitted by the wearable device 400B may include identification data of the wearable device 400B, identification data of the wearable device 400A, and location information. The signals 140 and 150 are received by the sensor box 100, respectively.

In the sensor box 100, the control device 101 executes an analysis process using the signal received by the beacon receiving device 109. For example, the control device 101 develops an area of the living room 900 in the RAM 103, and plots the identification data and the position information of the wearable device 400A and the identification data and the position information of the wearable device 400B in the area. In another aspect, when a marker (not shown) visible to the camera 105 is attached to the wearable device 400, the control device 101 sets the marker as the position of the wearable device 400 and corresponds to an image corresponding to the living room 900. Can be extracted from the area. In this case, the control device 101 can calculate the distance between the marker of the wearable device 400A and the marker of the wearable device 400B as the distance between the caregiver 600 and the care recipient 800.

The locus 351 represents the locus of the caregiver 600. The locus 352 represents the locus of the care recipient 800. When the control device 101 processes the signals 140, 150 at regular time intervals, the loci 351 and 352 can be represented as a set of points. In this case, the distance between the points constituting the locus 351 and the distance between the points forming the locus 352 may differ depending on the walking speeds of the caregiver 600 and the care recipient 800.

Area 361 represents the area corresponding to bed 901 of the care recipient 800. Area 362 represents an area presumed to have been in close proximity to the care recipient 800 in order for the caregiver 600 to assist the care recipient 800. The region 362 is, for example, a locus when the distance between the caregiver 600 and the care recipient 800 is equal to or less than a predetermined distance (for example, 50 cm, 75 cm, 1 m, etc.) at each time when the beacon signal is received. Area containing. The control device 101 may presume that the caregiver 600 was in close proximity to the care recipient 800 for assistance at this time.

In another aspect, the signal 140 may be transmitted based on detecting that the wearable device 400A is in close proximity to the wearable device 400B and pairing has been performed. Similar to the signal 140, the signal 150 may be transmitted based on the detection that the wearable device 400B is in close proximity to the wearable device 400A to perform pairing. As a result, when the caregiver 600 is so far away that the care recipient 800 cannot be assisted, the signals 140 and 150 are not transmitted, so that the sensor box 100 also does not receive the signals 140 and 150. Since the sensor box 100 executes the trajectory analysis process when the signals 140 and 150 are received, the sensor box 100 is not subject to the analysis process while the caregiver 600 and the care recipient 800 are not in close proximity to each other. This can improve the accuracy of detecting the time during which the caregiving is being performed.

Even outside the living room 10, changes in acceleration based on the vibration of the wearable device 400 can be detected. In order to accurately estimate the condition of the care recipient 800 in the living room 10, the control device 101 or the control device 201 may exclude data detected outside the living room 10. As an example, control when the time when the door of the living room 10 is opened is transmitted to the sensor box 100 wirelessly or by wire, and the signal 140 or the signal 150 transmits a time stamp as time data together with acceleration and other data. The device 101 or the control device 201 may exclude the signal 140 or the signal 150 including the time stamp before the time from the estimation target.

In other aspects, the care recipient 800 may walk down the corridor back to the room 10. In this case, the fluctuations in acceleration included in the signal 140 and the signal 150 received outside the living room 10 may all have similar fluctuations. This is because the caregiver 600 adjusts the walking speed to the walking speed of the care recipient 800 in order to assist the care recipient 800. In such a case, it can be estimated that the care recipient 800 has been cared for by the caregiver 600. Therefore, when the management device 200 detects such a case, the care recipient 800 is in need of care. It can be presumed that it was there.

On the other hand, if the care recipient 800 can walk normally in a common space such as a corridor or a dining room, the fluctuation in acceleration can be large. Therefore, when the management device 200 detects that the fluctuation of the acceleration included in the signal 140 is larger than the predetermined threshold value when the reception of the signal 150 is not detected when the signal 140 is received, the care recipient 800 can be determined to be in a state that does not require long-term care.

In another aspect, in order to accurately estimate the state of only the care recipient 800, when the caregiver 600 and the care recipient 800 are in the living room 10, the control device 101 relates to the caregiver 600 in the meantime. You may delete the data. For example, when the control device 101 receives the signal 150 from the wearable device 400B of the caregiver 600, the control device 101 may detect the presence of the caregiver 600 from the identification information included in the signal 150. Therefore, the control device 101 may exclude the time while receiving the signal 150 from the data.

[Data to be acquired]
The data that can be acquired by the measuring device will be described with reference to FIG. FIG. 4 is a diagram showing an outline of data that can be acquired by the measuring device for each of the care recipient 800 and the caregiver 600.

As shown in FIG. 4, data can be obtained from each of the care recipient and the caregiver. The data that can be acquired includes the movement speed, activity time, number of steps, video and position information of the care recipient 800, and the care time, position information and video of the caregiver 600, as described in the output column. .. Each data can be acquired by the sensor box 100 or the wearable device 400.

[Data about caregivers]
The moving speed of the care recipient 800 includes a maximum value, an average value, and an intermediate value. For example, the maximum value is the maximum walking speed among the walking speeds observed in a preset period (1 day, 1 week, 1 month, etc.). The mean value is the mean value of the walking speed observed in the period. The median is the walking speed located in the center when the observed walking speeds are arranged in descending (or ascending) order. The moving speed of the care recipient 800 is the trajectory and time obtained based on the signal acquired from the wearable device 400A outside the living room (for example, the living room at home, the toilet or other places other than the own room, the common space in the facility, etc.). Derived from the stamp.

Further, inside the living room, the moving speed can be derived based on an image obtained by taking a picture of the camera 105 of the sensor box 100 or a signal received by the beacon receiving device 109. Further, when the care recipient 800 is wearing the wearable device 400A, the moving speed can be calculated by using each signal continuously transmitted from the wearable device 400A and the reception time of each signal. ..

The activity time represents the time per day that the care recipient 800 is active outside the bed 901. The activity time is calculated using the signal received by the sensor box 100 and the area corresponding to the living room 900. For example, when the image corresponding to the care recipient 800 is out of the area, the time of activity outside the bed 901 is derived by accumulating the time out of the area.

The number of steps is derived using the acceleration detected by the acceleration sensor 407 included in the wearable device 400A.

The moving image is taken by the camera 105 of the sensor box 100. The manager can easily recognize the positional relationship between the care recipient 800 and the caregiver 600 by watching the moving image.

The position information can be detected by the sensor box 100 receiving a beacon signal transmitted from the wearable device 400A. In another aspect, the location information can be detected by the wearable device 400B that has received the signal emitted from the wearable device 400A worn by the care recipient 800. In another aspect, the sensor box 100 may receive the signal transmitted by the wearable device 400A and detect the position of the wearable device 400A by the AoA method.

[Data about caregivers]
The caregiving time is estimated using the time during which the caregiver 600 and the care recipient 800 remain in close proximity. For example, the sensor box 100 detects the time during which the caregiver 600 and the care recipient 800 have been in close proximity to each other by using the signal received from the wearable device 400A and the signal received from the wearable device 400B. The close state means that the distance between the caregiver 600 and the care recipient 800 is within a certain range, and it can be estimated that the time when the caregiving was performed. Therefore, the sensor box 100 derives the time during which the state continues as the caregiving time.

The position information of the caregiver 600 can be detected by the wearable device 400A that has received the signal emitted from the wearable device 400B worn by the caregiver 600. In another aspect, the sensor box 100 may receive the signal transmitted by the wearable device 400B and detect the position of the wearable device 400B by the AoA method.

The moving image is taken by the camera 105 of the sensor box 100. The manager can easily recognize the positional relationship between the care recipient 800 and the caregiver 600 by watching the moving image. In one aspect, the caregiving time is defined as the sum of the times when the caregiver 600 and the care recipient 800 are in close proximity. In this case, the administrator can confirm whether the calculated caregiving time is appropriate for the time when the caregiving is actually performed by watching the moving image.

[Control structure]
The control structure of the monitoring system 20 according to a certain embodiment will be described with reference to FIGS. 5 to 7. FIG. 5 is a flowchart showing a part of the process executed by the control device 101 of the sensor box 100.

In step S510, the control device 101 acquires information from the first device. For example, the sensor box 100 receives the signal 140 transmitted by the wearable device 400A via the beacon receiving device 109. The signal 140 includes identification data of the wearable device 400A. The control device 101 associates the time when the signal 140 is received with the signal 140. Therefore, the control device 101 can acquire the identification data of the wearable device 400A and the received time information. In another aspect, the signal 140 may include location information of the wearable device 400B detected based on the signal received from the wearable device 400B.

In step S520, the control device 101 acquires information from the second device. For example, the sensor box 100 receives the signal 150 transmitted by the wearable device 400B via the beacon receiving device 109. The signal 150 includes identification data of the wearable device 400B. The control device 101 associates the time when the signal 150 is received with the signal 150. Therefore, the control device 101 can acquire the identification data of the wearable device 400B and the received time information. In another aspect, the signal 150 may include location information of the wearable device 400A detected based on the signal received from the wearable device 400A.

In step S530, the control device 101 acquires information from each sensor. Each sensor includes a door sensor 510, a toilet sensor 520, an odor sensor 530, and a vital sensor 540. For example, the vital sensor 540 transmits the detected vital signs of the care recipient 800 at predetermined time intervals. Vital signs can include pulse or heart rate, respiratory rate, blood pressure and body temperature. The door sensor 510, the toilet sensor 520, and the odor sensor 530 transmit the detection signal to the sensor box 100 when the transmission trigger is detected. The transmission trigger is, for example, when the door 390 is opened or closed, when the toilet door is opened or closed, or when an odor is detected.

In step S540, the control device 101 estimates the states of the caregiver 600 and the care recipient 800 based on the acquired information. For example, in the control device 101, the distance between the wearable device 400A and the wearable device 400B is predetermined by using the locus data representing the change in the position of the wearable device 400A and the locus data representing the change in the position of the wearable device 400B. Detects a state that is less than or equal to the distance, and measures the duration of that state. Since this condition indicates that the caregiver 600 is in close proximity to the care recipient 800, it can be presumed that the caregiver 600 is assisting the care recipient 800.

In step S550, the control device 101 stores the state information of the caregiver 600 and the care recipient 800 in the storage device 108. The state information includes, for example, the position data of the caregiver 600, the position data of the care recipient 800, the estimated distance, and whether or not the care recipient 800 is assisted by the caregiver 600 in chronological order. Including flags to indicate.

In step S560, the control device 101 detects that a predetermined time has elapsed. After that, the control device 101 returns the control to step S510, and again acquires the position information of the care recipient 800 and the caregiver 600.

[Output of reference information for certification of need for nursing care]
The determination of certification for long-term care will be described with reference to FIG. FIG. 6 is a flowchart showing a part of the processing executed by the control device 201 of the management device 200 according to a certain embodiment.

In step S610, the control device 201 receives the request for long-term care information based on the operation given to the input device 209. More specifically, the manager and other staff input the name and other identification information of the care recipient 800 and the request for the care information of the care recipient 800 into the management device 200.

In step S620, the control device 201 accesses the database of care information of the care recipient 800 stored in the storage device 220, and acquires the care time of the care recipient 800.

In step S630, the control device 201 reads out a predetermined reference time for certification of need for nursing care (hereinafter, also referred to as “reference time for certification of need for nursing care”) from the storage device.

In step S640, the control device 201 compares the caregiving time with the reference time for long-term care certification, etc., and the caregiving level at which the caregiving time is appropriate (for example, support 1, 2, 1 to 5, etc.) To estimate.

In step S650, the control device 201 outputs the result of certification for long-term care estimated as a result of the comparison. For example, the management device 200 displays the name of the care recipient 800 and the result of certification on the display 206.

[Operation of wearable device 400]
A control structure of the wearable device 400 according to an embodiment will be described with reference to FIG. 7. FIG. 7 is a flowchart showing a part of the processing executed by the wearable device 400 having a function of estimating the distance from the other wearable device 400. Hereinafter, the case where the wearable device 400A estimates the distance to the wearable device 400B will be described, but conversely, the same applies to the case where the wearable device 400B estimates the distance to the wearable device 400A.

In step S710, the control device 406 of the wearable device 400A receives the beacon signal transmitted from another device (for example, the wearable device 400B).

In step S720, the control device 406 estimates the distance to another device (eg, wearable device 400B) by the AoA method using the beacon signal.

In step S730, the control device 406 stores the estimated distance in the storage device 404.

In step S740, the control device 406 detects that the transmission request for the distance has been received from the sensor box 100. For example, the sensor box 100 transmits a distance transmission request at preset time intervals (for example, every 10 seconds, every 30 seconds, every 1 minute, etc.).

In step S750, the control device 406 transmits the distance to the sensor box 100 in response to the reception of the transmission request. More specifically, first, the control device 406 accesses the storage device 404, reads out the distance acquired since the previous transmission request, and transmits the read distance via the beacon transmitting device 401. The transmitted signal is received by the beacon receiving device 109 of the sensor box 100. In the sensor box 100, the control device 101 can acquire a distance from the received signal and determine whether or not the caregiver 600 and the care recipient 800 are in close proximity to each other.

As described above, according to a certain embodiment, the control device 101 of the sensor box 100 or the control device 201 of the management device 200 has an image signal acquired by the camera 105 and a wearable device mounted on the care recipient 800. Using the signal 140 transmitted by the 400A and the signal 150 transmitted by the wearable device 400B attached to the caregiver 600, it is possible to estimate the time during which the caregiver 600 cares for the care recipient 800. As a result, since the normal movement of the care recipient 800 is grasped, information for determining the degree of care required of the care recipient 800 is provided. As a result, it is possible to perform certification for long-term care based on objective information, so that the accuracy of certification for long-term care can be improved.

In addition, since the activities of daily living of the care recipient 800 are grasped not only at the facility but also at the home of the care recipient 800, the degree of care required of the care recipient 800 is determined even when the investigator is absent. Since the information for the purpose can be obtained, it is possible to make an objective judgment.

In addition, since the caregiving time when the caregiver 600 is performed is also collected, the caregiving burden on the care recipient 800 can be grasped.

Some of the technical features disclosed herein can be summarized, for example:
[Structure 1] According to a certain embodiment, a method executed by a computer (for example, control device 101, control device 201) for providing information for determining the state of a care recipient (for example, a care recipient 800) is performed. Provided. In this method, a computer processor has a step of receiving a video signal output from a video sensor provided for photographing a care recipient's room, and the processor has an acceleration sensor and a user (for example, an example). The user's identification information (eg, name, number) and the output of the accelerometer (eg, acceleration, number of steps) are received from the first communication terminal (eg, wearable device 400A) attached to the care recipient 800). It includes a step, a step of determining the state of the care recipient based on the image of the living room and the output of the acceleration sensor. The state includes, for example, a state in which the care recipient 800 is being cared for by the caregiver 600 and a state in which the care recipient 800 is able to act on its own.

[Structure 2] In the method according to a certain aspect, the determination step is that the care recipient is in a state of being able to act normally based on the output exceeding a predetermined threshold value, and the output determines the threshold value. This includes determining that the care recipient is in need of care based on the lowering.

[Structure 3] In a method according to a certain aspect, the signal transmitted by the first communication terminal further includes the position information of the first communication terminal. The method has an accelerometer, and from a second communication terminal (for example, a wearable device 400B) attached to another user, the identification information of the other user, the output of the accelerometer, and the second communication terminal. Further provided with the location information of and the step of receiving. The determination step is to determine that the care recipient is in a state of needing care when the interval between the user and another user is less than a predetermined threshold, and the interval is a predetermined threshold. When the above is the case, it includes determining that the care recipient is in a state of being able to act normally.

[Structure 4] In a method according to a certain aspect, the first communication terminal and the second communication terminal each include an array antenna. The position information of the first communication terminal and the position information of the second communication terminal are acquired by communication between the first communication terminal and the second communication terminal, respectively.

[Structure 5] The method according to a certain aspect outputs the determination result of the care-requiring degree of the person to be cared for based on the comparison between the judgment result and the reference time predetermined for determining the care-requiring degree. Prepare more steps.

[Structure 6] The method according to a certain aspect further comprises a step of detecting entry and exit of a living room based on a video signal. The determination step is based on the fact that the time from entering the room to leaving the room exceeds a predetermined time when the output of the accelerometer from the first communication terminal is equal to or less than a preset threshold value. This includes determining that the care recipient is in need of care.

[Structure 7] According to another embodiment, a behavior detection device (for example, a sensor box 100) for detecting activities of daily living and other behaviors of the care recipient 800 is provided. The behavior detection device includes an input interface for receiving an input of a video signal, a receiving device for receiving the radio signal, and a processor (for example, a control device 101) for detecting the behavior based on the video signal and the radio signal. The processor receives a video signal output from a video sensor (for example, a camera 105) provided for photographing the room of the care recipient. The processor has an accelerometer and receives user identification information and the output of the accelerometer from a first communication terminal (eg, wearable device 400A) worn by the user. Further, the processor determines the condition of the care recipient based on the image of the living room and the output of the accelerometer.

[Structure 8] In the behavior detection device according to a certain aspect, the determination is that the care recipient is in a state of being able to act normally based on the fact that the output exceeds a predetermined threshold value, and the output is This includes determining that the care recipient is in need of care based on being below the threshold.

[Structure 9] In the behavior detection device according to a certain aspect, the signal transmitted by the first communication terminal further includes the position information of the first communication terminal. The processor has an accelerometer and further receives the identification information of the other user, the output of the accelerometer, and the position information of the second communication terminal from the second communication terminal attached to the other user. do. The determination is that when the interval between the user and another user is less than a predetermined threshold, it is determined that the care recipient is in a state requiring long-term care, and the interval is a predetermined threshold. When the above is the case, it includes determining that the care recipient is in a state of being able to act normally.

[Structure 10] In a behavior detection device according to a certain aspect, the first communication terminal and the second communication terminal each include an array antenna. The position information of the first communication terminal and the position information of the second communication terminal are acquired by communication between the first communication terminal and the second communication terminal, respectively.

[Structure 11] In the behavior detection device according to a certain aspect, the processor determines the care-requiring degree of the care recipient based on the comparison between the judgment result and the predetermined reference time for determining the care-requiring degree. Output the judgment result.

[Structure 12] In a behavior detection device according to a certain aspect, a processor further detects entry and exit from a living room based on a video signal. The determination is based on the fact that when the output of the accelerometer from the first communication terminal is less than or equal to a preset threshold value, the time from entering the room to leaving the room exceeds a predetermined time. This includes determining that the care recipient is in need of care.

[Structure 13] According to another embodiment, a system (for example, a monitoring system 20) for detecting activities of daily living and other behaviors of the care recipient is provided. The system includes a first communication terminal having an accelerometer (eg, wearable device 400A) and a sensor device for receiving radio signals (eg, sensor box 100). The sensor device includes a camera (camera 105), a receiving device that receives a signal, and a processor (control device 101) that executes arithmetic processing using the signal. The processor receives a video signal output from a video sensor provided in the room to photograph the room of the care recipient, and from the first communication terminal, the identification information of the user of the first communication terminal and the acceleration. The output of the sensor is received, and the condition of the care recipient is determined based on the image of the living room and the output of the accelerometer.

[Structure 14] In a system according to a certain aspect, the determination is that the care recipient is in a state of being able to act normally based on the output exceeding a predetermined threshold value, and the output determines the threshold value. This includes determining that the care recipient is in need of care based on the lowering.

[Structure 15] In a system according to a certain aspect, the signal transmitted by the first communication terminal further includes the position information of the first communication terminal. The system further comprises a second communication terminal having an accelerometer. The processor receives from the second communication terminal the identification information of the user of the second communication terminal, the output of the acceleration sensor, and the position information of the second communication terminal. The determination is that the care recipient is in a state of needing care when the distance between the user of the first communication terminal and the user of the second communication terminal is less than a predetermined threshold value. This includes determining that the care recipient is in a state of normal behavior when the interval is greater than or equal to a predetermined threshold.

[Structure 16] In a system according to a certain aspect, the first communication terminal and the second communication terminal each include an array antenna. The position information of the first communication terminal and the position information of the second communication terminal are acquired by communication between the first communication terminal and the second communication terminal, respectively.

[Structure 17] In a system according to a certain aspect, the processor determines the degree of care required of the person to be cared for based on a comparison between the result of the determination and a predetermined reference time for determining the degree of care required. Is output.

[Structure 18] In a system according to a certain aspect, the processor further detects entry and exit from the living room based on a video signal. The determination is based on the fact that when the output of the accelerometer from the first communication terminal is less than or equal to a preset threshold value, the time from entering the room to leaving the room exceeds a predetermined time. This includes determining that the care recipient is in need of care.

It should be considered that the embodiments disclosed this time are exemplary in all respects and not restrictive. The scope of the present invention is shown by the scope of claims rather than the above description, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

The disclosed technical features are available in the care recipient's home, the facility in which the care recipient resides, and other living spaces.

10,900 living room, 20 monitoring system, 100 sensor box, 101,201,301,406 controller, 102,202 ROM, 103,203,303,405 RAM, 104,204,304,403 communication interface, 105 camera, 106 Doppler sensor, 107 wireless communication device, 108, 220, 404 storage device, 109, 402, 420 beacon receiver, 140, 150 signal, 200 management device, 205 display interface, 206, 305 display, 207 operation interface, 209, 306 input device, 300 mobile terminal, 320 internal memory, 351,352 locus, 361,362 area, 390 door, 400,400A, 400B wearable device, 401,410 beacon transmitter, 407 acceleration sensor, 500 care call slave unit, 501 Care call button, 510 door sensor, 520 toilet sensor, 530 sensor, 540 vital sensor, 600 caregiver, 800 care recipient, 901 beds.

Claims (18)

A method performed on a computer to provide information to determine the care recipient's condition,
A step of receiving a video signal output from a video sensor provided for photographing the care recipient's room, and a step of receiving the video signal.
A step of receiving the user's identification information and the output of the accelerometer from a first communication terminal having an accelerometer and attached to the user.
A method comprising a step of determining the state of the care recipient based on the image of the living room and the output of the acceleration sensor. The determination step is
Based on the fact that the output exceeds a predetermined threshold value, it is determined that the care recipient is in a state of being able to act normally.
The method according to claim 1, wherein the care recipient is determined to be in a state requiring long-term care based on the output being below the threshold value. The signal transmitted by the first communication terminal further includes the position information of the first communication terminal.
The method has an acceleration sensor, and from a second communication terminal attached to another user, the identification information of the other user, the output of the acceleration sensor, and the position information of the second communication terminal are obtained. With more steps to receive,
The determination step is
When the distance between the user and the other user is less than a predetermined threshold value, it is determined that the care recipient is in a state requiring long-term care.
The method according to claim 1 or 2, comprising determining that the care recipient is in a state of being able to act normally when the interval is equal to or greater than the predetermined threshold value. The first communication terminal and the second communication terminal each include an array antenna.
The third aspect of claim 3, wherein the position information of the first communication terminal and the position information of the second communication terminal are obtained by communication between the first communication terminal and the second communication terminal, respectively. The method described. Claims 1 to 1 further include a step of outputting a determination result of the degree of care required of the person to be cared for based on a comparison between the result of the determination and a reference time predetermined for determining the degree of care required. The method according to any one of 4. Further provided with a step of detecting entry and exit from the living room based on the video signal.
The determination step is to exceed a predetermined time from entering the room to leaving the room when the output of the acceleration sensor from the first communication terminal is equal to or less than a preset threshold value. The method according to any one of claims 1 to 5, wherein the care recipient is determined to be in a state requiring long-term care based on the method. An input interface that receives video signal input and
A receiver that receives wireless signals and
It is equipped with a processor that detects an action based on the video signal and the radio signal.
The processor
Receives the video signal output from the video sensor provided to take a picture of the care recipient's room,
It has an accelerometer and receives the user's identification information and the output of the accelerometer from the first communication terminal attached to the user.
A behavior detection device that determines the state of the care recipient based on the image of the living room and the output of the acceleration sensor. The above judgment is
Based on the fact that the output exceeds a predetermined threshold value, it is determined that the care recipient is in a state of being able to act normally.
The behavior detection device according to claim 7, wherein the care recipient is determined to be in a state requiring long-term care based on the fact that the output is below the threshold value. The signal transmitted by the first communication terminal further includes the position information of the first communication terminal.
The processor has an acceleration sensor, and from a second communication terminal mounted on another user, the identification information of the other user, the output of the acceleration sensor, and the position information of the second communication terminal are obtained. , Receive more,
The above judgment is
When the distance between the user and the other user is less than a predetermined threshold value, it is determined that the care recipient is in a state requiring long-term care.
The behavior detection device according to claim 7 or 8, comprising determining that the care recipient is in a state of being able to act normally when the interval is equal to or greater than the predetermined threshold value. The first communication terminal and the second communication terminal each include an array antenna.
The ninth aspect of claim 9, wherein the position information of the first communication terminal and the position information of the second communication terminal are acquired by communication between the first communication terminal and the second communication terminal, respectively. The described behavior detection device. The processor outputs the determination result of the care-requiring degree of the person to be cared for based on the comparison between the determination result and the reference time predetermined for determining the care-requiring degree. The behavior detection device according to any one of 10. The processor further detects entry and exit from the living room based on the video signal.
The determination is that when the output of the acceleration sensor from the first communication terminal is equal to or less than a preset threshold value, the time from entering the room to leaving the room exceeds a predetermined time. The behavior detection device according to any one of claims 7 to 11, further comprising determining that the care recipient is in a state requiring long-term care. The first communication terminal having an accelerometer and
Equipped with a sensor device for receiving wireless signals
The sensor device is
With the camera
A receiver that receives signals and
Including a processor that executes arithmetic processing using the signal.
The processor
Receives the video signal output from the video sensor provided in the room to photograph the care recipient's room, and receives the video signal.
From the first communication terminal, the identification information of the user of the first communication terminal and the output of the acceleration sensor are received.
A system that determines the state of the care recipient based on the image of the living room and the output of the acceleration sensor. The above judgment is
Based on the fact that the output exceeds a predetermined threshold value, it is determined that the care recipient is in a state of being able to act normally.
13. The behavior detection system according to claim 13, comprising determining that the care recipient is in a state requiring long-term care based on the output being below the threshold value. The signal transmitted by the first communication terminal further includes the position information of the first communication terminal.
The system further comprises a second communication terminal having an accelerometer.
The processor receives from the second communication terminal the identification information of the user of the second communication terminal, the output of the acceleration sensor, and the position information of the second communication terminal.
The above judgment is
When the distance between the user of the first communication terminal and the user of the second communication terminal is less than a predetermined threshold value, it is determined that the care recipient is in a state requiring long-term care. ,
13. The system of claim 13 or 14, comprising determining that the care recipient is in a state of being able to behave normally when the interval is greater than or equal to the predetermined threshold. The first communication terminal and the second communication terminal each include an array antenna.
15. The position information of the first communication terminal and the position information of the second communication terminal are obtained by communication between the first communication terminal and the second communication terminal, respectively, according to claim 15. Described system. The processor outputs the determination result of the care-requiring degree of the person to be cared for based on the comparison between the determination result and the reference time predetermined for determining the care-requiring degree. 16. The system according to any one of 16. The processor further detects entry and exit from the living room based on the video signal.
The determination is that when the output of the acceleration sensor from the first communication terminal is equal to or less than a preset threshold value, the time from entering the room to leaving the room exceeds a predetermined time. The system according to any one of claims 13 to 17, wherein the care recipient is determined to be in need of care based on the system.

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