JP2020190871A - Determination device, control program of determination device, and determination method - Google Patents

Abstract

To provide a determination device, a control program of the determination device, and a determination method that determine the possibility of developing BPSD and provide information useful for care.SOLUTION: A watching system comprises: a detection unit for observing a person to be cared in each room; a staff terminal carried by a nursing or care staff; and a determination device. A determination device 20 includes: a first acquisition unit 211 that acquires behavioral information on a predetermined behavior of a care recipient based on a photographic image obtained by photographing the care recipient in an observation area; a second acquisition unit 212 that acquires history information on a care recipient 70 from a storage unit 23 that stores history information; a determination unit 213 that determines the possibility of developing BPSD of the care recipient based on the behavioral information acquired by the first acquisition unit 211 and the history information on a predetermined state acquired by the second acquisition unit 212; and a communication unit 22 that outputs a determination result of the determination unit 213.SELECTED DRAWING: Figure 4

Description

The present invention relates to a determination device, a control program for the determination device, and a determination method. In particular, the present invention relates to a determination device, a determination device control program, and a determination method used in a facility that cares for a care recipient.

As a background technique of the present invention, there is a technique of Patent Document 1. The information processing device of Patent Document 1 is input to a database including "at least one of the behavioral content and the behavioral content of the care subject or the care subject and information about the brain corresponding to at least one of the behavioral content and the behavioral content". The first process of generating or selecting the corresponding brain information based on at least one of the behavioral content and the behavioral content, and care management for the care subject or care object from the generated or selected brain information. The behavior content includes the state observation information, the behavior content includes the behavior observation information, and the information about the brain includes the brain damage site and the brain damage status. Includes information about. "

In addition, one of the symptoms of dementia is behavioral and psychological symptoms of dementia (BPSD: Behavioral and Psychological signs and Symptoms of Dementia). In Patent Document 1, this BPSD is referred to as Finkel, S, I. There is a description that it is defined as perceptual, thought content, mood or behavioral confusion that is frequently seen in dementia patients. In addition, according to the IPA (International Psychological Association), a study on the development of behavioral and psychological symptoms (BPSD) in care at facilities for the elderly reported that 90% of dementia patients had such symptoms. Behavioral and psychological symptoms (BPSD) are a major cause of distress and lead to poor quality of life for patients, their families and caregivers. "

JP-A-2017-201495 (paragraph 0018-0022)

When a care recipient (care recipient) develops BPSD, there is a risk of falling from the behavior caused by the symptom. Further, in a long-term care facility or the like, the symptom of BPSD may be induced in one person to be cared for by the symptom of BPSD in another long-term care person. From these facts, the burden on the caregiver increases due to the onset of BPSD of the care recipient.

If the caregiver in a care facility or the like is an experienced caregiver, it can be seen from the experience that there is a behavior or condition of the care recipient that is a sign of the onset of BPSD. It is also possible to prevent the onset of BPSD by prior care, and a veteran caregiver can prevent the onset of BPSD by providing prior care.

Given this situation, determining the signs of BPSD onset depends on the caregiver's experience. The present invention has been made in view of the above circumstances, and an object of the present invention is to determine the possibility of developing BPSD without depending on the magnitude of the experience of the caregiver and to provide information useful for caregiving.

The above object of the present invention is achieved by the following means.

(1) A first acquisition unit that acquires behavioral information regarding a predetermined behavior of the long-term care person based on a photographed image of the long-term care person in the observation area.
A second acquisition unit that acquires history information regarding a predetermined state of the long-term care person from a storage unit that stores history information about the long-term care person, and
Based on the behavior information acquired by the first acquisition unit and the history information acquired by the second acquisition unit, a determination unit for determining the possibility of BPSD onset of the care recipient.
An output unit that outputs the determination result of the determination unit and
Judgment device including.

(2) When the determination unit determines that the care recipient may develop BPSD,
The determination device according to (1) above, wherein the output unit notifies the terminal device that the care recipient may develop BPSD.

(3) The first acquisition unit detects the movement locus of the care recipient based on the photographed image and acquires the behavior information from the detected movement locus, according to the above (1) or (2). ).

(4) The action information is the level of wobbling when waking up.
The determination device according to (3) above, wherein the first acquisition unit determines the wobble level of the care recipient from the movement locus during walking detected based on the photographed image when waking up.

(5) The behavior information is the level of wobbling when waking up.
The first acquisition unit determines the wobble level of the care recipient from the movement locus of the head when sitting, which is detected based on the photographed image when waking up, or the above (3) or the above. The determination device according to (4).

(6) The determination unit determines the occurrence of the wake-up event of the care recipient based on the photographed image, and captures the photographed image immediately after the wake-up event occurs or before or after the occurrence of the wake-up event. Record in association with the event
The first acquisition unit determines the wobble level of the care recipient from the movement locus detected based on the captured image recorded in association with the wake-up event, the above (4) or the above (5). ).

(7) The history information is the defecation history of the care recipient, and the predetermined state is information indicating the elapsed time from defecation or the time interval of defecation, from the above (1) to the above (6). The determination device according to any one of.

(8) The determination unit determines that the care recipient may develop BPSD when the wobble level is at least a predetermined time and / or when the elapsed time or the time interval is at least a predetermined time. , The determination device according to (7) above.

(9) The determination device according to (8) above, which determines the possibility of developing BPSD in a plurality of stages based on the combination of the wobble level and the elapsed time.

(10) A step (a) of acquiring behavioral information regarding a predetermined behavior of the long-term care recipient based on a photographed image of the long-term care recipient in the observation area.
Step (b), the step (b) of acquiring the history information regarding the predetermined state of the care recipient from the storage unit in which the history information regarding the care recipient is stored.
Based on the behavior information acquired in the step (a) and the history information acquired in the step (b), the step (c) of determining the possibility of developing BPSD of the care recipient
The step (d) for outputting the determination result of the step (c) and
A control program for causing a computer that controls a determination device to execute a process including.

(11) When it is determined in the step (c) that the care recipient may develop BPSD,
The control program according to (10) above, in the step (d), notifying the terminal device that the care recipient may develop BPSD.

(12) In the step (a), the movement locus of the care recipient is detected based on the captured image, and the behavior information is acquired from the detected movement locus. The above (10) or the above (11). ) Described in the control program.

(13) The action information is the level of wobbling when waking up.
The control program according to (12), wherein in step (a), the wobble level of the care recipient is determined from the movement locus during walking detected based on the photographed image when waking up.

(14) The behavior information is the level of wobbling when waking up.
In the step (a), the wobble level of the care recipient is determined from the movement locus of the head when sitting, which is detected based on the photographed image when the person wakes up. The determination device according to (13).

(15) Further, based on the captured image, the occurrence of the wake-up event of the care recipient is determined, and the captured image immediately after the occurrence of the wake-up event or before or after the occurrence is used as the wake-up event. Including step (f) of associating and recording
In the step (a), the wobble level of the care recipient is determined from the movement locus detected based on the captured image recorded in association with the wake-up event, the above (13) or the above (14). ) Described in the control program.

(16) The history information is the defecation history of the care recipient, and the predetermined state is information indicating the elapsed time from defecation or the time interval of defecation, from the above (10) to the above (15). The control program described in any of.

(17) In the step (c), if the wobble level is equal to or higher than a predetermined level and / or if the elapsed time or the time interval is longer than a predetermined time, there is a possibility of developing BPSD for the care recipient. The control program according to (16) above, which determines.

(18) The control program according to (17) above, wherein the combination of the wobble level and the elapsed time determines the possibility of developing BPSD at a plurality of stages.

(19) A step (a) of acquiring behavioral information regarding a predetermined behavior of the long-term care recipient based on a photographed image of the long-term care recipient in the observation area.
Step (b), the step (b) of acquiring the history information regarding the predetermined state of the care recipient from the storage unit in which the history information regarding the care recipient is stored.
Based on the behavior information acquired in the step (a) and the history information acquired in the step (b), the step (c) of determining the possibility of developing BPSD of the care recipient
The step (d) for outputting the determination result of the step (c) and
Judgment method including.

The determination device according to the present invention stores a first acquisition unit that acquires behavioral information regarding a predetermined behavior of the long-term care person and history information about the long-term care person based on a photographed image of the long-term care person in the observation area. Based on the second acquisition unit that acquires the history information about the predetermined state of the long-term care person from the stored storage unit, the behavior information acquired by the first acquisition unit, and the history information acquired by the second acquisition unit. It includes a determination unit for determining the possibility of developing BPSD of the caregiver, and an output unit for outputting the determination result of the determination unit. This makes it possible to determine the possibility of developing BPSD and provide information useful for long-term care.

It is a figure which shows the whole structure of the monitoring system including the determination device. It is a figure which shows the example of the detection part installed in the room of a care subject. It is a block diagram which shows the schematic structure of the detection part. It is a block diagram which shows the schematic structure of the determination device. It is a block diagram which shows the schematic structure of a fixed terminal. It is a block diagram which shows the schematic structure of the staff terminal. It is a flowchart which shows the procedure of determining the possibility of BPSD onset by the determination apparatus which concerns on 1st Embodiment. It is a schematic diagram which shows the analysis of the behavior information by the movement locus of a care subject performed based on a photographed image. It is a schematic diagram which shows the analysis of the behavior information by the movement locus of a care subject performed based on a photographed image. This is an example of the operation screen displayed on the staff terminal. This is an example of the operation screen displayed on the staff terminal. This is an example of a table showing the probability level of BPSD onset in the combination of behavioral information and state information used in step S60. This is an example of a list of care recipients stored in the memory unit. It is a sequence chart which shows the procedure of the processing of the monitoring system in 2nd Embodiment. This is an example of an event list stored in the storage unit. It is a flowchart which shows the procedure of determining the possibility of BPSD onset by the determination apparatus which concerns on 2nd Embodiment. This is an example of another table showing the possibility of BPSD in the combination of behavioral information and defecation state used in step S360.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the description of the drawings, the same elements are designated by the same reference numerals, and duplicate description will be omitted. In addition, the dimensional ratios in the drawings are exaggerated for convenience of explanation and may differ from the actual ratios.

(overall structure)
FIG. 1 is a diagram showing an overall configuration of a monitoring system 1 according to the present embodiment, and FIG. 2 is a diagram showing an example of a detection unit 10 installed around a bed in a room of a care subject 70. The care target person 70 is, for example, a care recipient, and the care staff 80 is a caregiver who cares for the care target person 70.

As shown in FIG. 1, the monitoring system 1 includes a plurality of detection units 10, a determination device 20, a fixed terminal 30, and one or more staff terminals 40. These are connected to each other by wire or wirelessly via a network 50 such as a LAN (Local Area Network), a telephone network, or a data communication network so as to be communicable with each other. The network 50 may include repeaters such as repeaters, bridges, routers or cross-connects that relay communication signals. In the example shown in FIG. 1, the staff terminal 40, the detection unit 10, the determination device 20, and the fixed terminal 30 are connected to each other by a network 50 such as a wireless LAN including an access point 51 (for example, a LAN according to the IEEE802.11 standard). , Connected to communicate.

The watching system 1 is arranged at an appropriate place according to the care target person 70. The care target person 70 is, for example, a patient who needs nursing care due to illness or injury, the above-mentioned care recipient who needs nursing care due to deterioration of physical ability due to old age, or a person living alone. In particular, from the viewpoint of enabling early detection and early coping, the care target person 70 may be a person who needs the detection when a predetermined inconvenient event such as an abnormal state occurs in the person. Therefore, the watching system 1 is suitably arranged in buildings such as hospitals, welfare facilities for the elderly, and dwelling units, depending on the type of care recipient 70. In the example shown in FIG. 1, the watching system 1 is arranged in a facility including a plurality of rooms (living rooms) in which a plurality of care target persons 70 are accommodated and a plurality of rooms including a care station (also referred to as a nurse station).

The detection unit 10 is arranged in each living room (corresponding to the observation area) of the care subject 70. In the example shown in FIG. 1, four detection units 10 are arranged in the living rooms of Mr. A, Mr. B, Mr. C, and Mr. D, who are the care target persons 70, respectively. The observation area of the detection unit 10 includes a bed 60. The care staff 80, who provides nursing or long-term care to the care target person 70, carries a staff terminal 40, which is a mobile terminal, respectively. However, the position, number, and the like of each configuration included in the monitoring system 1 are not limited to the example shown in FIG. For example, the determination device 20 does not have to be arranged at the care station, and may be an external server unit connected to the network 50. Further, the fixed terminal 30 may be omitted, and the determination device 20 or the staff terminal 40 may take on the function. The detection unit 10 may be arranged in each home room of the care target person 70 so that the care target person 70 can detect not only the case of being in one facility but also the case of being at home.

(Detection unit 10)
FIG. 3 is a block diagram showing a schematic configuration of the detection unit 10. As shown in the figure, the detection unit 10 includes a control unit 11, a communication unit 12, a camera 13, a care call unit 14, and a voice input / output unit 15, which are connected to each other by a bus.

The control unit 11 is composed of a CPU (Central Processing Unit) and a memory such as a RAM (Random Access Memory) and a ROM (Read Only Memory), and controls and performs arithmetic processing of each unit of the detection unit 10 according to a program. The control unit 11 may further include an HDD (Hard Disk Drive) as a memory.

The communication unit 12 is an interface circuit for communicating with other devices such as a determination device 20, a fixed terminal 30, or a staff terminal 40 via the network 50. It is an interface for various local connections such as a network interface for wired communication based on standards such as Ethernet (registered trademark) and a wireless communication interface based on standards such as Bluetooth and 802.11, and it is a communication with each terminal connected to the network 50. I do.

The camera 13 is arranged on the ceiling or the upper part of the wall of the living room, for example, and photographs the bed 60 of the care subject 70 directly below as an observation area, and outputs a photographed image (photographed image data) taken from a bird's-eye view. This captured image (also referred to as "video") includes still images and moving images. Although the camera 13 is a near-infrared camera, a visible light camera may be used instead, or these may be used in combination. Further, the camera 13 outputs an image at, for example, 30 fps or 60 fps. Although the configuration of the system 1 is described as watching over the camera 13, the present invention is not limited to this, and the detection unit 10 may acquire an image from an external camera.

The control unit 11 recognizes the behavior of the care target person 70 from the captured image taken by the camera 13. This recognizing behavior includes "getting up (wake up 1)" from bed 60, "getting out (wake up 2)" from getting up from bed 60, "falling" from bed 60, and falling to the floor surface. Includes "falling over". Getting out of bed is a concept included in getting up, and in the following, "getting up" and "getting out of bed" are referred to as getting up 1 and getting up 2, respectively.

The control unit 11 detects an image silhouette (hereinafter, referred to as “human silhouette”) from a plurality of captured images (moving images). The human silhouette can be detected, for example, by extracting a range of pixels in which the difference is relatively large by the time difference in which the images whose shooting times are different are different. The human silhouette may be detected by a background subtraction method that subtracts a background image from a captured image. The recognition of getting up 1, getting up 2, falling, and falling is relative to the posture of the care recipient 70 (for example, standing, sitting, lying down, etc.) and the installation in the living room such as the bed 60 from the detected person silhouette. Recognize the distinction between wake-up 1, wake-up 2 and fall (fall) from the position. For example, the wake-up 1 can be recognized by the fact that the width of the human silhouette crossing any side of the quadrangle in the upward view with the four corners of the bed 60 as the vertices is increased to 20 cm or more. Further, for example, getting up 2 (getting out of bed) can be recognized by increasing the ratio of the external area of the human silhouette to the inside of the quadrangle to 80% or more. Further, when determining the sitting position, it may be recognized whether the sitting position is the sitting position (in the end sitting posture) sitting near the side of the bed 60.

These recognitions may be performed by a program processed by the CPU of the control unit 11, or may be performed by a built-in processing circuit. Further, the present invention is not limited to this, and the determination device 20 may perform all or most of these recognition processes, and the control unit 11 may only transmit the captured image to the determination device 20. When the control unit 11 recognizes any type of action, the control unit 11 transmits a notification that the action has occurred to the determination device 20 or the like.

Here, when the work of the care staff 80 is a care work for the care target person 70, the contents of correspondence regarding a predetermined event will be described. The predetermined event is an event related to the care subject 70, and includes at least wake-up 1, wake-up 2, fall, and fall. If "wake-up 1" is determined and the determination is within a predetermined time (wake-up time preset at the facility (for example, 7:00 to 8:00 am)), morning care is performed. This morning care includes face washing, tooth brushing assistance, denture wearing, change of clothes assistance, and the like. In addition, if it is an event of "wake up 2", wheelchair transfer and walking assistance may be required. In addition, as regular (regular) events (care events) other than the event determined by the detection unit 10, there are beverages, meal assistance, excretion assistance, wheelchair transfer, walking assistance, postural change (decubitus prevention), and bathing assistance. .. For these regular care events, an alert may be generated at a fixed time by the care call unit 14 or the like. When the care staff 80 responds to these predetermined irregular events and regular events, recording is performed according to the content of the care event and accumulated as a care history (history information). This care history is input mainly by the corresponding care staff 80 through the staff terminal 40 or the fixed terminal 30, for example. In the case of excretion assistance, the date and time of excretion, the amount of excretion, etc. are recorded. The operation screen for this input will be described later.

The care call unit 14 includes a push button type switch, and when the switch is pressed by the care target person 70 or the like, a care call (also referred to as a nurse call) is transmitted. The care call may be detected by a voice microphone instead of the push button type switch. When the switch of the care call unit 14 is pressed, that is, when the care call is detected, the control unit 11 transmits a notification to the determination device 20 or the like via the communication unit 12 and the network 50.

The voice input / output unit 15 is, for example, a speaker and a microphone, and enables a voice call by transmitting and receiving a voice signal to and from the staff terminal 40 and the like via the communication unit 12. The voice input / output unit 15 may be connected to the detection unit 10 via the communication unit 12 as an external device of the detection unit 10.

Further, the detection unit 10 transmits and receives microwaves to the bed 60 to detect a doppler shift type body motion sensor of the microwave generated by the body movement (for example, respiratory movement) of the care subject 70. You may also prepare. This body movement sensor detects the body movement of the chest (up and down movement of the chest) accompanying the respiratory movement of the care subject 70, and the disorder of the cycle in the body movement of the chest and the body of the chest that is below a preset threshold value. When the amplitude in motion is detected, it is recognized as a microbody motion abnormality.

In the present embodiment, the change in the state recognized by the detection unit 10 regarding the care target person 70 is notified to the care staff 80 such as wake-up 1, wake-up 2, fall, fall, and microbody movement abnormality (report). The event that should be performed is called an event. The event also includes a care call by the care call unit 14. The detection unit 10 transmits information on the event that has occurred to the determination device 20.

(Judgment device 20)
FIG. 4 is a block diagram showing a schematic configuration of the determination device 20. The determination device 20 is also referred to as a server, and includes a control unit 21, a communication unit 22, and a storage unit 23 (also referred to as a database). The control unit 21 includes a CPU, RAM, ROM, and the like as the same configuration as the control unit 11 of the detection unit 10. The communication unit 22 has the same configuration as the communication unit 12. The control unit 21 functions as a first acquisition unit 211, a second acquisition unit 212, and a determination unit 213, and determines the possibility of developing BPSD. Further, the communication unit 22 functions as an output unit by cooperating with the control unit 21, and notifies the registered notification destination of the determination result of the possibility of BPSD onset. This notification destination includes, for example, a staff terminal 40 and a fixed terminal 30.

The determination device 20 may be provided in the same building as the living room for the care target person 70, or may be provided in a remote location and connected via a network. Further, it may be configured as a separate body from the storage unit 23. For example, the determination device 20 may be a cloud server virtually constructed by a plurality of servers arranged on a network such as the Internet. Similarly, the storage unit 23 may also be a file server on the cloud. Each configuration is communicatively connected to each other by a bus.

The storage unit 23 stores various information such as an event list, a photographed image, a care target person list, and a care list. The care target list includes information such as the name of the care target 70, the level of certification for long-term care, the presence or absence of dementia, the dementia level if present, and the presence or absence of a wheelchair. In addition, the care list includes a care history (described later) such as food intake, water intake, excretion status, etc. for each care subject 70. Further, the predetermined area of the HDD of the storage unit 23 functions as a temporary storage unit, and temporarily stores the captured image output from each camera 13 that captures the observation area for a predetermined time (for example, several tens of minutes to several tens of hours). To do. That is, a predetermined area of the HDD is made to function as a ring buffer, and loop recording is performed for a predetermined time for each observation area as a recorded video. In loop recording, when the recording time is longer than a predetermined time, the newest captured image is overwritten in order from the captured image with the oldest time stamp. The predetermined time for temporary storage can be arbitrarily determined in consideration of the capacity and necessity of the storage device, such as several seconds, several minutes, several hours, several days, weeks, and months. Further, the temporary storage may be performed in a storage unit such as an HDD of the control unit 11. Further, when a predetermined event, for example, a fall, wake-up 1, or wake-up 2 occurs, the captured image (video) for a predetermined time (for example, several seconds to several tens of seconds) including the time when the event occurs corresponds to the event list. The event is tagged.

Further, the event such as wake-up 1, wake-up 2, fall, care call, etc. detected by the determination device 20 alone or in cooperation with the detection unit 10 as described above is related to which care target person 70. Judge (identify). Specifically, the detection unit 10 that has detected the event is ID-managed, and the care target person 70 (that is, the resident of the room) associated with the detection unit 10 is determined from the room number in which the detection unit 10 is installed. To do. Then, the determined event type and the care target person 70 are associated with each other and added to the event list of the storage unit 23.

(1st acquisition unit 211, 2nd acquisition unit 212, determination unit 213)
The first acquisition unit 211 of the control unit 21 acquires behavior information regarding a predetermined behavior of the care target person 70 (care recipient). The predetermined action is, for example, an event of waking up 1 or waking up 2 relating to the care subject 70. The first acquisition unit 211 analyzes the behavior from the captured images tagged with the events of the wake-up 1 or the wake-up 2. The first acquisition unit 211 detects the human silhouette by the same processing as the processing of the control unit 11 described above, and obtains a movement locus from the human silhouette or the position information of the human rectangle (center of gravity or center) surrounding the human silhouette. Ask. Then, the first acquisition unit 211 acquires the action information from the movement locus. The behavioral information is, for example, the level of wobbling during walking. The judgment index value of the wobble level (degree) is calculated from the movement locus in the bird's-eye view image by the amount of vibration having a period shorter than the walking cycle, or the difference between the position information at each time point in the movement locus and the moving average of the position information. It can be calculated from the integrated value of.

As the wobbling, the wobbling of the head in the sitting position may be used. Specifically, when waking up, the wobbling level of the head is determined from the movement locus of the rectangular position of the head (for example, the center of gravity or the center) in the sitting state (when sitting at the end) sitting on the end of the bed 60. judge. For example, the care target person 70 who needs assistance by the care staff 80 has few chances to evaluate the wobbling during walking because the assistance to wake up is provided in the care at the time of waking up. The wobbling of the head can be used as behavior information used for BPSD determination. In this case, if there is a care staff 80 to assist nearby, the first acquisition unit 211 separates the care staff 80 and the care target person 70 and makes a determination. In the following description, unless otherwise specified, the terms "wobble" and "wobble level" are used as the wobble level during walking and the wobble level during walking, respectively.

The second acquisition unit 212 of the control unit 21 acquires the history information regarding the predetermined state of the care target person 70 (care recipient) stored in the storage unit 23. Specifically, the second acquisition unit 212 acquires the care history (history information) related to the care target person 70 from the storage unit 23. This care history includes defecation records from the present time to the past (for example, one month ago) of a predetermined period.

The determination unit 213 of the control unit 21 determines the possibility of developing BPSD based on the behavior information acquired by the first acquisition unit 211 and the history information acquired by the second acquisition unit 212. Specific examples of these processes will be described later.

(Fixed terminal 30)
FIG. 5 is a block diagram showing a schematic configuration of the fixed terminal 30. The fixed terminal 30 is a so-called PC (Personal Computer), and includes a control unit 31 composed of a CPU, RAM, and the like, a communication unit 32, a display unit 33, an input unit 34, and an audio input / output unit 35. The fixed terminal 30 is arranged in, for example, a nurse station.

Further, when the care staff 80 or the technical staff attaches the detection unit 10 to each room (living room) through the fixed terminal 30, they can associate the room number with the detection unit 10 or make a living room such as a bed 60. The position information of the installation object, that is, the contour information of the upward view by the camera 13 on the ceiling is calibrated and specified. In addition, identification information such as the name and ID number of the care target person 70 who is hospitalized or resident is associated with each room number.

(Staff terminal 40)
FIG. 6 is a block diagram showing a schematic configuration of the staff terminal 40. The staff terminal 40 includes a control unit 41, a wireless communication unit 42, a display unit 43, an input unit 44, and a voice input / output unit 45, which are connected to each other by a bus. The control unit 41 includes a CPU, RAM, ROM, and the like as the same configuration as the control unit 11 of the detection unit 10. The wireless communication unit 42 enables wireless communication using standards such as Wi-Fi and Bluetooth, and wirelessly communicates with each device via the access point 51 or directly. The display unit 43 and the input unit 44 are touch panels, and a touch sensor as the input unit 44 is superimposed on the display surface of the display unit 43 composed of a liquid crystal or the like. The display unit 43 and the input unit 44 display the care staff 80 various operation screens displaying a list of a plurality of events included in the event list and the care list, and accept various operations through the operation screens. .. The voice input / output unit 45 is, for example, a speaker and a microphone, and enables the care staff 80 to make a voice call with another staff terminal 40 via the wireless communication unit 42. The staff terminal 40 is a device that functions as a user interface of the watching system 1, and can be configured by a portable communication terminal device such as a tablet computer, a smartphone, or a mobile phone. Further, the staff terminal 40 functions as a terminal device for inputting a care history and receiving a notification of the possibility of developing BPSD, as will be described later.

At the start of business, the care staff 80 performs login authentication processing to the determination device 20 through the assigned staff terminal 40. The care staff 80 inputs the staff ID and password through the touch panels (display unit 43, input unit 44) of the staff terminal 40, and transmits the staff ID and password to the determination device 20. The determination device 20 collates the authentication information stored in the storage unit 23, and transmits the authentication result according to the authority of the care staff 80 to the staff terminal 40 to complete the login authentication.

(Process for determining the possibility of developing BPSD by the determination device according to the first embodiment)
Next, with reference to FIGS. 7 to 11, a process for determining the possibility of developing BPSD in the first embodiment will be described. FIG. 7 is a flowchart showing a procedure for determining the possibility of developing BPSD. The process shown in FIG. 7 is performed for each of the care target persons 70. This process may be performed periodically, or may be executed irregularly in response to an instruction from a fixed terminal 30 such as a manager.

(Step S10)
The determination device 20 is described in step S60, which will be described later, according to the care target person information such as the degree of need for care certification, the physical information, etc. Set the threshold value of the action judgment level used in. For example, when determining wobbling during walking as behavior information, the higher the degree of care required certification, the larger the threshold value of the behavior determination bell.

(Step S20)
The first acquisition unit 211 of the determination device 20 acquires a captured image from the storage unit 23. This is a photographed image obtained from the camera 13 of the detection unit 10 installed in the room of the care subject 70 to be determined.

(Step S30)
The first acquisition unit 211 of the determination device 20 is walking in the captured image obtained in step S20 based on the position information of the person silhouette, the person rectangle, or the head rectangle (see FIG. 8A described later) at each time. The movement locus of is obtained, and the action information is acquired from the movement locus. As the behavior information, the level of wobble can be used as described above. Divide into multiple levels according to the size of the wobble. The number of captured images used for determining the behavior information acquired in step S20 may be one or a plurality. In one case, for example, a determination index value used for determining the level of wobbling may be calculated using an image taken during the daytime in the observation area (living room). In addition, images taken before and after the standard wake-up time set in advance in the facility may be used. In the case of a plurality of images, for example, a plurality of captured images at times before and after waking up are used over the past several days. In the case of a plurality of cases, the wobble determination index value may be calculated using the average value or the maximum value.

It is thought that the sleep state and BPSD are related to the use of movement wobble (or head wobble when sitting) when waking up (immediately after waking up), and therefore sleep state (not awakening) even immediately after waking up. This is because the effect of (sufficient) appears as wobbling.

8A and 8B are schematic views showing the analysis of behavioral information based on the movement locus of the watching target person 70, which is performed based on the captured image. FIG. 8A is a schematic view showing a photographed image 505 before and after the wake-up time. The figure is a bird's-eye view image from above, and shows a photographed image at the time of getting out of bed among the photographed images composed of a plurality of frames of a predetermined time length in which the care subject 70 to be judged is photographed. ing. In FIG. 8A, the head rectangle 510 is shown as the area of the thick rectangular frame.

FIG. 8B is a schematic diagram 506 showing a movement locus obtained from the position information of the head rectangle 510 after FIG. 8A. The region of schematic diagram 506 corresponds to the captured image 505 of FIG. 8A. The level (degree) of wobbling is determined from the movement locus. For example, it can be evaluated by the amount of vibration having a period shorter than the walking cycle of the movement locus, or by the integrated value of the difference (lateral fluctuation) between the position information at each time point in the movement locus and the moving average of the position information. ..

(Step S40)
The second acquisition unit 212 of the determination device 20 acquires the care history of the care target person 70 to be determined from the care list stored in the storage unit 23. Here, the procedure for inputting the care history by the care staff 80 will be described with reference to FIGS. 9A and 9B.

Although not shown, the care list includes multiple care events. Each care event corresponds to one care process. The care list, also called a care plan, is pre-generated based on data previously entered by the manager in line with the care plan. The care list includes care timing (schedule), care type (care name), room number, care recipient, and assigned care staff. The "care timing" is more input by the manager according to the care plan and indicates the scheduled time for the care event. The "care type" includes excretion assistance, wake-up assistance, meal assistance, wheelchair transfer assistance, postural change assistance, water intake assistance, walking assistance, bathing assistance, and the like. The excretion assistance is regularly performed by the care staff 80, and the pad is replaced, and the cleaning or the portable toilet (urinal) is replaced accordingly. Wake-up assistance is assisted by the care staff 80 when the care subject 70 gets up from bed in the morning, and meal assistance and hydration assistance are assistance for assisting meal or hydration. Wheelchair transfer assistance is assistance in moving from bed to wheelchair and sitting. Repositioning assistance is assistance in repositioning in bed to prevent pressure ulcers. The care staff 80 in charge is determined and assigned by a manager, a group leader in the care staff 80, or the like, for example, through a fixed terminal 30, according to the shift status of the care staff 80 in charge on the day or the day before.

9A and 9B are examples of operation screens displayed on the staff terminal 40. On the operation screen 431 shown in FIG. 9A, a list of care lists assigned to one care staff 80 (staff A) at a certain time is displayed. By operating any of the care events included in the care list on the operation screen 431, the care staff 80 transitions to another operation screen for confirming the detailed information of the care event or inputting the care status. For example, region a10 is a care event related to excretion assistance. By operating the area a10, the transition to the operation screen 432 of FIG. 9B is performed.

Areas a11 to a16 and buttons b1 are arranged in order from the top on the operation screen 432 of FIG. 9B. The area a11 is composed of a fixed bar and a tab area, and the current time and the like are displayed on the fixed bar. Also, the tab area can be scrolled horizontally. In the area a12, information on the care staff 80 using (that is, logged in) the staff terminal 40, an icon indicating the type of care event (excretion assistance), and information on the care target person 70 are displayed. Areas a13 to a15 are provided with areas for entering the type and amount of excrement according to the type of the pad, toilet, and portable excrement container (device). The area a16 is provided with a column for selecting the time when the care was actually performed (the time relative to the current time). The care staff 80 fills in each input field as necessary, and operates the button b1 after the entry is completed, so that the input data is transmitted from the staff terminal 40 to the determination device 20. In addition, the situation (time, etc.) of actual excretion may be input from the staff terminal 40, the fixed terminal 30, etc. as the care history (excretion history) by hearing from the care target person 70 or the like. .. In step S40, the care history of the care list entered and recorded in such a procedure is acquired.

(Step S50)
The second acquisition unit 212 acquires a predetermined state (state information) from the history information acquired in step S40. The predetermined state information is, for example, the elapsed time from the record of the immediately preceding defecation. Further, as the state information, the average time interval may be obtained from the record of defecation recorded from the present time to the past (for example, several weeks or days) for a predetermined period, and this may be used as the predetermined state information.

(Step S60)
The determination unit 213 of the determination device 20 determines the BPSD onset probability level from the threshold value set in step S10, the behavior information acquired in step S30 regarding the target care target person 70, and the state information acquired in step S50. FIG. 10 is an example of a table showing the probability level of BPSD onset when the behavioral information is staggered and the defecation state is used as the state information.

The threshold value of the action determination level acquired in step S10 is used to determine the magnitude of the wobble as the action information. The determination unit 213 of the determination device 20 determines that the determination index value of the calculated wobble level is "large" when it is equal to or more than the threshold value, and determines "small" when it is less than the threshold value.

The determination unit 213 uses, for example, the elapsed time from the record of defecation immediately before the defecation state as the state information. The threshold is, for example, 4 days (96 hours). When the state information is equal to or more than the threshold value, the determination unit 213 determines that it is "long", and when it is less than the threshold value, it determines that it is "less than normal (not long)". In the example of the table of FIG. 10, the determination unit 213 determines that there is no possibility of developing BPSD when the wobbling is small and the defecation state is below normal. On the other hand, if either "large wobble" or "long defecation state" is satisfied, it is determined that BPSD may develop. It should be noted that the table of FIG. 10 is merely an example, and by setting the threshold value appropriately, it may be determined that there is a possibility of developing BPSD only when both the wobble and defecation status information are equal to or higher than the predetermined value. Good.

(Step S70)
The determination device 20 outputs the determination result of step S60. For example, if there is a possibility of developing BPSD, the determination result is recorded in the care target list. FIG. 11 is an example of a care target person list stored in the storage unit 23, and since the care target person 70 (Mr. A) may develop BPSD, that fact is recorded in the list. The care target list can be viewed by the care staff 80 or the like in charge who has the viewing authority from the fixed terminal 30 or the staff terminal 40. Further, the care target person 70 may be notified when the care staff 80 in charge logs in with the staff terminal 40 that there is a possibility of developing BPSD.

As described above, in the determination device 20 according to the first embodiment, the first acquisition unit 211 of the control unit 21 determines the care recipient based on the captured image of the care recipient (care target person 70). The behavior information related to the behavior is acquired, the second acquisition unit 212 acquires the history information regarding the predetermined state of the long-term care recipient, and the judgment unit 213 can develop the BPSD of the long-term care recipient from the behavior information and the history information. The sex is judged and the judgment result is output. As a result, the possibility of developing BPSD can be determined without depending on the experience of the care caregiver, and information useful for care can be provided. In particular, the care staff 80 can recognize whether or not there is a possibility of developing BPSD by referring to the output determination result. Then, the care staff 80 is encouraged to carry out a more frequent patrol of the potential care target person 70 and to observe carefully during the regular patrol. In addition, as pre-care to prevent the onset of BPSD from progressing, the care staff 80 can call out to the care subject 70 determined to have a possibility, and guide them to activities, recreations, and walks.

(Second Embodiment)
Next, the determination device 20 according to the second embodiment will be described with reference to FIGS. 12 to 15. In the second embodiment, a photographed image for a predetermined time is recorded in association with an event (wake-up 1, wake-up 2, etc.) detected by the detection unit 10, and the determination device 20 generates behavior information based on the photographed image. get. In the second embodiment, the detection unit 10 functions as a part of the determination device 20.

(Event judgment processing in watching system 1)
First, the event determination process will be described with reference to FIGS. 12 and 13. Next, with reference to FIGS. 14 and 15, a process for determining the possibility of BPSD onset by the determination device 20 according to the second embodiment will be described. FIG. 12 is a sequence chart showing the processing procedure of the watching system 1.

(Processing related to event determination (steps S110 to S210))
(Step S110)
As shown in FIG. 12, the detection unit 10 detects the movement of the care target person 70 in the observation area or the event of the care call by the care target person 70. Then, the detection unit 10 determines whether or not a fall, a fall, or other event has occurred based on the movement of the care target person 70.

(Steps S120, S130)
When the occurrence of the event is determined, the detection unit 10 transmits the event information to the determination device 20. Further, when an event occurs, the detection unit 10 transmits image data (moving image or still image) obtained by photographing the observation area with the camera 13. In this case, the type of event that occurred is a specific type, for example, an event that may lead to an accident such as a fall or a fall, and wake-up 1 (wake-up) and wake-up 2 (get out of bed) used to determine the level (degree) of wobbling. If it is an event of, a video of a predetermined time (for example, several seconds to several tens of seconds) before and after the occurrence time including the time of occurrence is transmitted, and if it is another type of event, a still image at the time of occurrence is transmitted. Good.

(Steps S140, S150)
The determination device 20 updates the event list. Further, the image data of the moving image before and after the occurrence point or the still image at the time of occurrence sent in step S130 is stored in the storage unit 23. This image data is associated with the event. As another example, the detection unit 10 continuously transmits the captured image to the determination device 20, and the determination device 20 overwrites the captured image for a predetermined time (for example, the past several hours) in the temporary storage unit. Remember. Then, when an event occurs and the event information is received from the detection unit 10, the determination device 20 reads a still image or a moving image before and after the time of occurrence from the temporary storage unit and saves the event in association with the event. Good.

(Step S160)
When a new event is detected and added, or the status of the event is changed (step S190 described later), the determination device 20 updates the updated event list. Deliver to all logged-in staff terminals 40. The delivery destination at this time may be delivered only to the staff terminal 40 used by the care staff 80 who is in charge of the care target person 70 who generated the event. Each staff terminal 40 that has received the event list returns a receipt confirmation command in response to receiving the event list from the determination device 20 (not shown). The event list may be transmitted from the determination device 20 by transmitting only the difference data. For example, only the part that has changed from the event list transmitted immediately before, that is, the event that has been added or updated is transmitted as an event list to all staff terminals 40.

(Step S170)
Each staff terminal 40 updates the display content of the display unit 43 in response to receiving the event list from the determination device 20.

(Step S180)
The care staff 80 confirms the content of the event on the operation screen (not shown) displayed on the staff terminal 40. On this operation screen, an image showing the status of the event (occurrence time, elapsed time from occurrence, care target person name, thumbnail image of captured image at the time of event occurrence), and whether or not the care staff 80 itself responds. A "correspondence button" for inputting the judgment result is included.

(Steps S190, S200)
The staff terminal 40 transmits a confirmation result regarding the selected event to the determination device 20 in response to the operation of the "corresponding" button, and the determination device 20 returns an approval notification accordingly.

(Step S210)
The determination device 20 updates the event list according to the process of step S190. Specifically, when the "correspondence button" is operated by the care staff 80, it is considered that the response has been made at that time, and the status of this event is updated to the corresponding status.

FIG. 13 is an example of an event list stored in the storage unit 23. This event list includes a plurality of events created and updated by the process of steps S110 to S210 of FIG. 7 described above. The events included in the event list include wake up 1, wake up 2, fall, fall, and care call as described above. The latest event transmitted in step S120 is added to the end of the event list.

As shown in FIG. 13, the event ID, the detection unit ID (room number), the target person (care target person), the event type, the date and time of occurrence (time), which are the primary keys automatically assigned to each event, And the recorded image data (i101 to i108), and the information on the correspondence status are included. The image data is image data (captured image) of a moving image or a still image obtained by being photographed by the detection unit 10 when an event occurs as described above (step S130). Although not shown, the response status includes status (correspondence / non-correspondence), response staff, and response date and time (time).

In the example shown in FIG. 13, the events with event IDs d010, d014, and d016 are care calls, the events with event IDs d011 to d013 are events related to waking up (wake up 1, wake up 2), and the event ID is d015. The event is a fall. Further, each event including the wake-up 1 and the wake-up 2 is stored in association with captured images for a predetermined time (several seconds to several tens of seconds) immediately after the event occurrence time or before and after the occurrence time (image data i101). ~ I107).

(Process for determining the possibility of developing BPSD by the determination device 20 according to the second embodiment)
Next, a process for determining the possibility of developing BPSD will be described with reference to FIGS. 14 and 15. FIG. 14 is a flowchart showing a procedure for determining the possibility of developing BPSD by the determination device 20 according to the second embodiment. The flowchart of FIG. 14 corresponds to FIG. 7, and steps S310 to S360 correspond to steps S10 to S60 of FIG. 7, respectively.

(Step S310)
Here, the same process as in step S10 is performed. Specifically, the determination device 20 responds to the care target person information such as the degree of care requirement certification, physical information, etc. of the care target person 70 to be determined, which is recorded in the care target person list of the storage unit 23. , Set the threshold value of the action determination level used in step S360 described later.

(Step S320)
The first acquisition unit 211 acquires a captured image associated with a specific event of the care target person 70 to be determined from the storage unit 23. For example, a photographed image associated with wake-up 1 or wake-up 2 is acquired.

(Steps S330 to S360)
Similar to steps S30 to S60 in FIG. 7, the determination device 20 determines the possibility of developing BPSD of the target care subject 70 from the behavior information and the state information. FIG. 15 is an example of a table showing the possibility of developing BPSD in the combination of the behavioral information and the defecation state used in step S360.

In step S330, as shown in FIG. 15, the first acquisition unit 211 compares the calculated wobble level determination index value with the plurality of threshold values set in step S310 in a plurality of stages of levels 1 to 4. judge. The wobble increases in order from level 1 to level 4. Level 1 has the least wobble and level 4 has the largest. Further, the second acquisition unit 212 determines the level of the defecation status information in four stages according to the elapsed time from the immediately preceding defecation execution record. The elapsed time increases in order from level 1 to level 4. For example, level 1 is less than 1 day, level 2 is 1 day, level 3 is 2 to 3 days, and level 4 is 4 days or more. The determination unit 213 determines the possibility level of BPSD onset in determinations 1 to 4 based on the combination of behavioral information and state information. The accuracy of the possibility of onset increases in the order of "no possibility", "caution information", "pre-care recommendation", and "pre-care required" in each of the multiple stages of judgments 1 to 4.

(Step S370)
The determination device 20 determines whether or not notification is necessary according to the determination result determined in step S360. For example, if the determination is 1, it is determined that the notification is unnecessary (NO) and the process is terminated (end). If the determination result is determination 2 to 4, it is determined that notification is necessary (YES), and the process proceeds to step S380.

(Step S380)
The control unit 21 notifies the terminal devices such as the fixed terminal 30 and the staff terminal 40 of the determination result by the communication unit 22. The notification destination at this time is preferably a notification destination according to the target care target person 70. For example, the control unit 21 uses the communication unit 22 to send a determination result to the staff terminal 40 used by the care staff 80, with the care staff 80 of one person or the group in charge of the care of the care target person 70 as the notification destination. Notice. The content of this notification may simply describe the name of the target care recipient 70 and the possibility, or may be different depending on the determination result. For example, along with the content of the judgment level, precautions for care according to each judgment level may be included. The notification timing may be set when the care staff 80 logs in, or may be set regularly.

As described above, in the second embodiment, in the determination device 20, the first acquisition unit 211 of the control unit 21 is based on the photographed image of the care recipient (care target person 70) recorded in association with the event. The second acquisition unit 212 acquires the history information regarding the predetermined state of the long-term care recipient, and the determination unit 213 acquires the behavior information regarding the predetermined behavior of the long-term care person from the behavior information and the history information. The possibility of developing BPSD of the care recipient is determined, and the determination result is output. In particular, the care staff 80 in charge of care can perform appropriate care and pre-care to prevent the progression of BPSD onset, as in the first embodiment, based on the notified possibility of BPSD onset.

The configuration of the determination device 20 and the monitoring device 1 including the determination device 20 described above is not limited to the above configuration, but is within the scope of claims, as the main configuration has been described in explaining the features of the above-described embodiment. Can be modified in various ways. In addition, the configuration provided in a general determination device and watching system is not excluded. For example, the function of the determination device 20 may include components other than the above-mentioned components, or may not include a part of the above-mentioned components.

The determination device 20 may be incorporated in the detection unit 10, or the detection unit 10 other than the camera 13 may be omitted and integrated into the determination device 20. For example, in the second embodiment, the detection unit 10 that functions as a part of the control unit 21 of the determination device 20 detects the occurrence of an event, but the control unit 21 (determination unit 213) of the determination device 20 has been shown. ) Side may detect the occurrence of an event. Specifically, the detection unit 10 transmits the captured image captured by the camera 13 as it is to the determination device 20 in real time. The control unit 21 of the determination device 20 detects the occurrence of each event from the transmitted captured image, and stores the captured image at a predetermined time before and after the event occurrence time in the storage unit 23 in association with the event.

Further, the process in the determination device 20 according to the above-described embodiment may include steps other than the steps in the above-mentioned flowchart, or may not include a part of the above-mentioned steps. Further, the order of the steps is not limited to the above-described embodiment. Further, each step may be executed as one step in combination with other steps, may be executed by being included in other steps, or may be executed by being divided into a plurality of steps.

For example, the process of determining whether or not the notification in step S370 of FIG. 14 is necessary is omitted, and when it is determined in step S360 that there is no possibility of developing BPSD, the terminal device is notified that there is no possibility. You may do so.

Further, the means and method for performing various processes in the determination device 20 according to the above-described embodiment can be realized by either a dedicated hardware circuit or a programmed computer. The program may be provided by a computer-readable recording medium such as a USB memory or a DVD (Digital Versaille Disc) -ROM, or may be provided online via a network such as the Internet. In this case, the program recorded on the computer-readable recording medium is usually transferred to and stored in a storage unit such as a hard disk. Further, the above program may be provided as a single application software, or may be incorporated into the software of a device such as a detection unit as one function.

1 Watching system 10 Detection unit 11 Control unit 12 Communication unit 13 Camera 14 Care call unit 15 Voice input / output unit 20 Judgment device 21 Control unit 211 First acquisition unit 212 Second acquisition unit 213 Judgment unit 22 Communication unit 23 Storage unit 30 Fixed terminal 40 Staff terminal 41 Control unit 42 Wireless communication unit 43 Display unit 44 Input unit 45 Voice input / output unit 50 Network 60 Bed 70 Care target person 80 Care staff

Claims (19)

A first acquisition unit that acquires behavioral information regarding a predetermined behavior of the long-term care recipient based on a photographed image of the long-term care recipient in the observation area.
A second acquisition unit that acquires history information regarding a predetermined state of the long-term care person from a storage unit that stores history information about the long-term care person, and
Based on the behavior information acquired by the first acquisition unit and the history information acquired by the second acquisition unit, a determination unit for determining the possibility of BPSD onset of the care recipient.
An output unit that outputs the determination result of the determination unit and
Judgment device including. When the determination unit determines that the care recipient may develop BPSD,
The determination device according to claim 1, wherein the output unit notifies the terminal device that the care recipient may develop BPSD. The determination according to claim 1 or 2, wherein the first acquisition unit detects the movement locus of the care recipient based on the captured image and acquires the behavior information from the detected movement locus. apparatus. The behavior information is the level of wobbling when waking up.
The determination device according to claim 3, wherein the first acquisition unit determines the wobble level of the care recipient from the movement locus during walking detected based on the photographed image when waking up. The behavior information is the level of wobbling when waking up.
The first acquisition unit determines the wobbling level of the care recipient from the movement locus of the head when sitting, which is detected based on the photographed image when waking up, claim 3 or claim. 4. The determination device according to 4. The determination unit determines the occurrence of the wake-up event of the care recipient based on the photographed image, and associates the photographed image immediately after or before and after the wake-up event with the wake-up event. Record and record
The first acquisition unit determines the wobble level of the care recipient from the movement locus detected based on the captured image recorded in association with the wake-up event, according to claim 4 or 5. The determination device described. The history information is the defecation history of the care recipient, and the predetermined state is information indicating the elapsed time from defecation or the time interval of defecation, according to any one of claims 1 to 6. Judgment device. The determination unit determines that the care recipient may develop BPSD when the wobble level is at least a predetermined time and / or when the elapsed time or the time interval is at least a predetermined time. 7. The determination device according to 7. The determination device according to claim 8, wherein the determination device is determined at a plurality of stages of the possibility of developing BPSD based on the combination of the wobble level and the elapsed time. A step (a) of acquiring behavioral information regarding a predetermined behavior of the long-term care recipient based on a photographed image of the long-term care recipient in the observation area, and
Step (b), the step (b) of acquiring the history information regarding the predetermined state of the care recipient from the storage unit in which the history information regarding the care recipient is stored.
Based on the behavior information acquired in the step (a) and the history information acquired in the step (b), the step (c) of determining the possibility of developing BPSD of the care recipient
The step (d) for outputting the determination result of the step (c) and
A control program for causing a computer that controls a determination device to execute a process including. If it is determined in step (c) that the care recipient may develop BPSD,
The control program according to claim 10, wherein in step (d), the terminal device is notified that the care recipient may develop BPSD. The control according to claim 10 or 11, wherein in the step (a), the movement locus of the care recipient is detected based on the captured image, and the behavior information is acquired from the detected movement locus. program. The behavior information is the level of wobbling when waking up.
The control program according to claim 12, wherein in step (a), the wobble level of the care recipient is determined from the movement locus during walking detected based on the captured image when waking up. The behavior information is the level of wobbling when waking up.
In the step (a), the wobble level of the care recipient is determined from the movement locus of the head in the sitting position, which is detected based on the photographed image when the person wakes up. 13. The determination device according to 13. Further, based on the photographed image, the occurrence of the wake-up event of the care recipient is determined, and the photographed image immediately after the wake-up event occurs or before and after the occurrence is recorded in association with the wake-up event. Including step (f)
In the step (a), claim 13 or claim 14 determines the wobble level of the care recipient from the movement locus detected based on the captured image recorded in association with the wake-up event. The described control program. The history information is the defecation history of the care recipient, and the predetermined state is information indicating the elapsed time from defecation or the time interval of defecation, according to any one of claims 10 to 15. Control program. In step (c), it is determined that the care recipient may develop BPSD when the wobble level is equal to or higher than a predetermined level and / or when the elapsed time or the time interval is longer than a predetermined time. The control program according to claim 16. The control program according to claim 17, wherein the combination of the wobble level and the elapsed time determines the possibility of developing BPSD at a plurality of stages. A step (a) of acquiring behavioral information regarding a predetermined behavior of the long-term care recipient based on a photographed image of the long-term care recipient in the observation area, and
Step (b), the step (b) of acquiring the history information regarding the predetermined state of the care recipient from the storage unit in which the history information regarding the care recipient is stored.
Based on the behavior information acquired in the step (a) and the history information acquired in the step (b), the step (c) of determining the possibility of developing BPSD of the care recipient
The step (d) for outputting the determination result of the step (c) and
Judgment method including.