JP7259540B2 - Determination device, control program for determination device, and determination method - Google Patents

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 control program for the determination device, and a determination method used in facilities that provide care to care recipients.

As a background art of the present invention, there is a technique of Patent Document 1. The information processing apparatus of Patent Literature 1 includes "a database including at least one of the action content and the action content of the care target person or the care target object and brain-related information corresponding to at least one of the action content and the action content; a first process of generating or selecting corresponding brain-related information based on at least one of the action content and the action content, and care management for the care recipient or the care object from the generated or selected brain-related information and a processing unit that performs a second process for generating a method, wherein the behavior content includes behavior observation information, the action content includes behavior observation information, and the information about the brain includes the location of brain damage and the state of brain damage. including information about."

Moreover, one of the symptoms of dementia is behavioral and psychological symptoms of dementia (BPSD: Behavioral and Psychological signs and Symptoms of Dementia). In US Pat. It is defined as a disturbance of perception, thought content, mood or behavior that is frequently seen in dementia patients. Also, according to the IPA (International Psychogeriatric Association), a study on the development of behavioral and psychological symptoms (BPSD) in nursing home care reported that 90% of patients with dementia had these symptoms. Behavioral and psychological symptoms (BPSD) are a major cause of distress and lead to poor quality of life for patients, families and caregivers."

JP 2017-201495 (paragraph 0018-0022)

When a cared person (a person to be cared for) develops BPSD, there is a risk of falling due to behavior caused by the symptom. Moreover, in nursing care facilities and the like, the appearance of BPSD symptoms in one care recipient may induce symptoms of BPSD in other care recipients. For these reasons, the onset of BPSD in the care recipient increases the burden on the caregiver.

Caregivers in care facilities, etc., if they are veteran caregivers with a lot of experience, know from their experiences that there are behaviors and conditions of caregivers that are signs of BPSD onset. The onset of BPSD can be prevented by prior care, and veteran caregivers prevent the onset of BPSD by providing prior care.

Given this situation, it is dependent on the caregiver's experience to discern the signs of developing BPSD. 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 and provide information useful for nursing care without depending on the experience of the caregiver.

The above objects of the present invention are achieved by the following means.

(1) having a camera that captures a cared person in an observation area and generates a captured image, and based on the captured image, determines whether an event such as getting up, getting out of bed, or falling of the cared person has occurred; is notified to the staff terminal used by the staff who cares for the care recipient, and the history information of care for the care recipient is stored in the storage unit by the input by the staff through the staff terminal A determination device used,
a first acquisition unit that acquires action information related to a predetermined action of the care receiver based on a photographed image of the care receiver in an observation area of the camera ;
a second acquisition unit that acquires history information about a predetermined state of the care receiver from the storage unit that stores history information of care about the care receiver;
a determination unit that determines a possibility of BPSD onset of the care-receiver based on the behavior information acquired by the first acquisition unit and the history information acquired by the second acquisition unit;
An output unit that outputs the determination result of the determination unit ,
The determining unit determines occurrence of an event of getting up, getting out of bed, or falling of the care-receiver based on the photographed image, and determines the occurrence of the wake-up event immediately after, or before and after the occurrence of the wake-up event. record in association with the event of
The determination device, wherein the first acquisition unit acquires action information regarding a predetermined action of the care-receiver based on the captured image recorded in association with the wake-up event.

( 2 ) The determination device according to (1), wherein the first acquisition unit detects a movement trajectory of the cared person based on the captured image, and acquires the behavior information from the detected movement trajectory. .

( 3 ) the behavior information is the stagger level when waking up,
The determination device according to ( 3 ) above, wherein the first acquisition unit determines the sway level of the care-receiver from the movement trajectory during walking detected based on the photographed image during waking.

( 4 ) the behavior information is the stagger level when waking up;
The first acquisition unit determines the sway level of the care-receiver from the movement trajectory of the head in a sitting position, which is detected based on the photographed image at the time of waking up, or the above ( 2 ), or The determination device according to ( 3 ).

( 5 ) The above (1) to ( 4 ), wherein the history information is the defecation history of the care-receiver, and the predetermined state is information indicating the elapsed time from defecation or the time interval between defecations. The determination device according to any one of 1.

( 6 ) the behavior information is the stagger level when waking up;
The first acquisition unit determines the sway level of the care-receiver from a movement trajectory of the care-receiver detected based on the captured image at the time of waking,
The determination unit determines that the cared person has a possibility of developing BPSD when the sway level is a predetermined value or more and/or when the elapsed time or the time interval is a predetermined value or more, the above ( 5 ) The determination device described in ).

( 7 ) a first acquisition unit that acquires action information related to a predetermined action of the care receiver based on a photographed image of the care receiver in an observation area;
a second acquisition unit that acquires history information about a predetermined state of the care receiver from a storage unit that stores history information about the care receiver ;
a determination unit that determines a possibility of BPSD onset of the care-receiver based on the behavior information acquired by the first acquisition unit and the history information acquired by the second acquisition unit;
An output unit that outputs the determination result of the determination unit,
The behavior information is the stagger level when waking up,
The history information is the defecation history of the care-receiver, the predetermined state is information indicating an elapsed time from defecation or a time interval between defecations,
The first acquisition unit determines the sway level of the care-receiver from a movement trajectory of the care-receiver detected based on the captured image at the time of waking,
The determination device, wherein the determination unit determines the possibility of onset of BPSD in multiple stages based on a combination of the sway level and the elapsed time or the time interval.
(8) a first acquisition unit that acquires action information related to a predetermined action of the care receiver based on a photographed image of the care receiver in the observation area;
a second acquisition unit that acquires history information about a predetermined state of the care receiver from a storage unit that stores history information about the care receiver;
a determination unit that determines a possibility of BPSD onset of the care-receiver based on the behavior information acquired by the first acquisition unit and the history information acquired by the second acquisition unit;
An output unit that outputs the determination result of the determination unit,
The behavior information is the stagger level when waking up,
The history information is the defecation history of the care-receiver, the predetermined state is information indicating an elapsed time from defecation or a time interval between defecations,
The first acquisition unit determines the sway level of the care-receiver from a movement trajectory of the care-receiver detected based on the captured image at the time of waking,
The determination device, wherein the determination unit determines that the care-receiver has a possibility of developing BPSD when the sway level is a predetermined value or more and the elapsed time or the time interval is a predetermined value or more.
(9) When the determination unit determines that there is a possibility of developing BPSD for the care recipient,
The determination device according to any one of (1) to (8) above, wherein the output unit notifies the terminal device that the cared person may develop BPSD.

(10) having a camera that captures a cared person in an observation area and generates a captured image, and based on the captured image, determines whether an event such as getting up, getting out of bed, or falling of the cared person has occurred; is notified to the staff terminal used by the staff who cares for the care recipient, and the history information of care for the care recipient is stored in the storage unit by the input by the staff through the staff terminal A control program executed by a determination device used,
a step (a) of acquiring action information related to a predetermined action of the care receiver based on a photographed image of the care receiver in the observation area of the camera ;
step (b) of acquiring history information about a predetermined condition of the care receiver from the storage unit storing history information of care about the care receiver;
Step (c) of determining the possibility of BPSD onset of the care-receiver based on the behavior information acquired in step (a) and the history information acquired in step (b);
a step (d) of outputting the determination result of the step (c);
Based on the photographed images, it is determined whether the cared person gets up, gets out of bed, or falls, and the photographed images immediately after the occurrence of the wake-up event, or before and after the occurrence of the wake-up event, are associated with the wake-up event. and a step (e) of recording with
In the step (a), to cause a computer that controls a determination device to acquire action information related to a predetermined action of the care-receiver based on the captured image recorded in association with the wake-up event. control program.

( 11 ) The control program according to (10) above, wherein in step (a), the movement trajectory of the cared person is detected based on the photographed image, and the behavior information is acquired from the detected movement trajectory. .

( 12 ) the behavior information is a staggering level when waking up;
The control program according to ( 11 ) above, wherein, in step (a), the sway level of the care-receiver is determined from the locus of movement during walking detected based on the photographed image upon waking.

( 13 ) the behavior information is the stagger level when waking up,
In the step (a), the sway level of the care - receiver is determined from the movement trajectory of the head in the sitting position detected based on the photographed image at the time of waking up, or The control program according to ( 12 ).

( 14 ) The above (10) to ( 13 ), wherein the history information is the defecation history of the care-receiver, and the predetermined state is information indicating an elapsed time from defecation or a time interval between defecations. A control program according to any one of

( 15 ) the behavior information is the stagger level when waking up;
In the step (a), the sway level of the care receiver is determined from the movement trajectory of the care receiver detected based on the photographed image at the time of waking;
In the step (c), if the stagger level is a predetermined value or more and/or if the elapsed time or the time interval is a predetermined value or more, the cared person is determined to have a possibility of developing BPSD. The control program according to ( 14 ) above.

(16) step (a) of acquiring action information related to a predetermined action of the care receiver based on the photographed image of the care receiver in the observation area;
From the storage unit in which the history information about the care receiver is stored, to the care receiver in a predetermined state
step (b) of obtaining historical information about
Step (c) of determining the possibility of BPSD onset of the care-receiver based on the behavior information acquired in step (a) and the history information acquired in step (b);
a step (d) of outputting the determination result of the step (c);
including
The behavior information is the stagger level when waking up,
The history information is the defecation history of the care-receiver, the predetermined state is information indicating an elapsed time from defecation or a time interval between defecations,
In the step (a), the sway level of the care receiver is determined from the movement trajectory of the care receiver detected based on the photographed image at the time of waking;
In the step (c), the combination of the sway level and the elapsed time or the time interval determines the possibility of developing BPSD in multiple stages,
A control program for causing a computer that controls the determination device to execute processing .
(17) step (a) of acquiring action information about a predetermined action of the care receiver based on a photographed image of the care receiver in the observation area;
step (b) of acquiring history information about a predetermined condition of the care receiver from a storage unit storing history information about the care receiver;
Step (c) of determining the possibility of BPSD onset of the care-receiver based on the behavior information acquired in step (a) and the history information acquired in step (b);
a step (d) of outputting the determination result of the step (c);
including
The behavior information is the stagger level when waking up,
The history information is the defecation history of the care-receiver, the predetermined state is information indicating an elapsed time from defecation or a time interval between defecations,
In the step (a), the sway level of the care receiver is determined from the movement trajectory of the care receiver detected based on the photographed image at the time of waking;
In the step (c), when the sway level is a predetermined value or more and the elapsed time or the time interval is a predetermined value or more, it is determined that there is a possibility of developing BPSD in the cared person.
A control program for causing a computer that controls the determination device to execute processing .
( 18 ) When it is determined in step (c) that there is a possibility that the care recipient may develop BPSD,
The control program according to any one of the above (10) to (17) , wherein in the step (d), the terminal device is notified that the cared person may develop BPSD.

(19) step (a) of acquiring action information about a predetermined action of the care receiver based on a photographed image of the care receiver in the observation area;
step (b) of acquiring history information about a predetermined condition of the care receiver from a storage unit storing history information about the care receiver;
Step (c) of determining the possibility of BPSD onset of the care-receiver based on the behavior information acquired in step (a) and the history information acquired in step (b);
a step (d) of outputting the determination result of the step (c);
including
The behavior information is the stagger level when waking up,
The history information is the defecation history of the care-receiver, the predetermined state is information indicating an elapsed time from defecation or a time interval between defecations,
In the step (a), the sway level of the care receiver is determined from the movement trajectory of the care receiver detected based on the photographed image at the time of waking;
In the step (c), the combination of the sway level and the elapsed time or the time interval determines the possibility of developing BPSD in multiple stages,
judgment method.

The determination device according to the present invention includes a first acquisition unit that acquires action information related to a predetermined action of the care receiver based on a photographed image of the care receiver in an observation area, and stores history information regarding the care receiver. a second acquisition unit that acquires history information about a predetermined state of the care recipient from the stored storage unit; the behavior information acquired by the first acquisition unit; and the history information acquired by the second acquisition unit. A determination unit that determines the possibility of BPSD onset of the caregiver, and an output unit that outputs the determination result of the determination unit are provided. This makes it possible to determine the possibility of developing BPSD and provide information useful for nursing care.

It is a figure which shows the whole watching system structure containing a determination apparatus. It is a figure which shows the example of the detection part installed in the care target person's room. 4 is a block diagram showing a schematic configuration of a detection unit; FIG. It is a block diagram which shows schematic structure of a determination apparatus. 1 is a block diagram showing a schematic configuration of a fixed terminal; FIG. 2 is a block diagram showing a schematic configuration of a staff terminal; FIG. 4 is a flowchart showing a procedure for determining the possibility of developing BPSD by the determination device according to the first embodiment; FIG. 10 is a schematic diagram showing analysis of action information based on the movement trajectory of the care recipient, performed based on the photographed image; FIG. 10 is a schematic diagram showing analysis of action information based on the movement trajectory of the care recipient, performed based on the photographed image; It is an example of the operation screen displayed on the staff terminal. It is an example of the operation screen displayed on the staff terminal. It is an example of the table which shows the possibility level of BPSD onset in the combination of the action information and state information which are used by step S60. It is an example of a care target person list stored in the storage unit. It is a sequence chart which shows the procedure of the process of the watching system in 2nd Embodiment. It is an example of an event list stored in a storage unit. 9 is a flow chart showing a procedure for determining the possibility of BPSD onset by the determination device according to the second embodiment. It is an example of another table showing the possibility of BPSD in the combination of the behavior information and defecation state used in step S360.

Hereinafter, embodiments of the present invention will be described with reference to the attached drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and overlapping descriptions are omitted. Also, 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 the overall configuration of a monitoring system 1 according to this 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 recipient 70. As shown in FIG. The care recipient 70 is, for example, a cared person, and the care staff 80 is a caregiver who takes care of the care recipient 70 .

As shown in FIG. 1 , the watching 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 by wire or wirelessly so as to be able to communicate with each other via a network 50 such as a LAN (Local Area Network), a telephone network, or a data communication network. 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 via a network 50 such as a wireless LAN including an access point 51 (for example, a LAN conforming to the IEEE802.11 standard). , are communicatively connected.

The watching system 1 is arranged at an appropriate place according to the person to be cared 70 . The care recipient 70 is, for example, a patient who needs nursing care due to illness or injury, the above-mentioned cared person who needs care due to deterioration of physical ability due to old age, or a solitary person living alone. In particular, from the viewpoint of enabling early detection and early treatment, the person to be cared for 70 can be a person who needs detection when a predetermined inconvenient event such as an abnormal condition occurs to the person. Therefore, the watching system 1 is preferably installed in buildings such as hospitals, welfare facilities for the elderly, and dwelling units according to the type of the person to be cared for 70 . In the example shown in FIG. 1, the monitoring system 1 is placed in a facility that has multiple rooms including multiple rooms (residential rooms) where multiple care recipients 70 reside and care stations (also called nurse stations).

The detection unit 10 is arranged in each living room (corresponding to an observation area) of the person to be cared 70 . In the example shown in FIG. 1, four detection units 10 are arranged in the living rooms of persons A, B, C, and D who are care recipients 70, respectively. The observation area of the detector 10 includes the bed 60 . Care staff 80 who provide nursing or nursing care to care recipient 70 each carry a staff terminal 40, which is a portable terminal. However, the position, the number, and the like of each component included in the watching system 1 are not limited to the example shown in FIG. 1 . For example, determination device 20 may not be located at a care station, but may be an external server unit connected to network 50 . Alternatively, the fixed terminal 30 may be omitted, and the determination device 20 or the staff terminal 40 may perform the function. Note that the detecting unit 10 may be placed in each room of the care recipient 70 so that detection can be made not only when the care recipient 70 is in one facility but also when the care recipient 70 is at home.

(Detector 10)
FIG. 3 is a block diagram showing a schematic configuration of the detection section 10. As shown in FIG. 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 an audio input/output unit 15, which are interconnected by a bus.

The control unit 11 includes a CPU (Central Processing Unit), RAM (Random Access Memory), ROM (Read Only Memory), and other memories, and performs control and arithmetic processing of each unit of the detection unit 10 according to a program. Note that 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 the determination device 20 , the fixed terminal 30 or the 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 an interface for wireless communication based on standards such as Bluetooth and IEEE802.11, and communicates with each terminal connected to the network 50. I do.

The camera 13 is arranged, for example, on the ceiling or the upper part of the wall of the living room, photographs the bed 60 of the care recipient 70 directly below as an observation area, and outputs a photographed image (captured image data) photographed from above. The captured images (also referred to as “video”) include still images and moving images. Although the camera 13 is a near-infrared camera, a visible light camera may be used in place of this, or these may be used in combination. Also, the camera 13 outputs images at, for example, 30 fps or 60 fps. Note that the camera 13 is described as the configuration of the monitoring system 1, but the configuration 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 recipient 70 from the captured image captured by the camera 13 . The actions to be recognized include "wake up (wake up 1)" to get up from the bed 60, "leave the bed (wake up 2)" to leave the bed 60 after waking up, "fall" to fall from the bed 60, and to fall on the floor or the like. It includes "falling" to do. Getting out of bed is a concept included in getting up, and hereinafter, "getting up" and "getting out of bed" are referred to as getting up 1 and getting up 2, respectively.

The control unit 11 detects image silhouettes (hereinafter referred to as “person silhouettes”) from a plurality of captured images (moving images). A human silhouette can be detected, for example, by extracting a range of pixels having a relatively large difference based on a time difference obtained by subtracting images captured at different times. A person silhouette may be detected by a background subtraction method in which a background image is subtracted from a captured image. Recognition of wake-up 1, wake-up 2, fall, and fall is based on the detected human silhouette, the posture of the care recipient 70 (for example, standing, sitting, lying down, etc.), and the relative position of the bed 60 and other installations in the living room. Recognizes wake-up 1, wake-up 2, and fall (fall) from the position. For example, Wake-up 1 can be recognized by the fact that the width of the human silhouette crossing any side of a preset quadrangle with the four corners of the bed 60 as vertices has increased to 20 cm or more. Also, for example, Wake-up 2 (getting out of bed) can be recognized when the ratio of the outside area of the person silhouette to the inside of the rectangle has increased to 80% or more. Further, when determining the sitting position, it may be recognized whether the sitting position is a sitting position near the side of the bed 60 (at the time of sitting on the edge).

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. Also, without being limited to this, all or most of these recognition processes may be performed on the determination device 20 side, and the control unit 11 may only transmit the captured image to the determination device 20 . If any type of action is recognized, 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 nursing care work for the person to be cared for 70, the contents of the correspondence regarding a predetermined event will be described. The predetermined event is an event related to the care recipient 70, and includes at least wake-up 1, wake-up 2, fall, and fall. "Wake-up 1" is determined, and if the determination is within a predetermined time (wake-up time preset at the facility (for example, 7:00 am to 8:00 am)), morning care is performed. This morning care includes face washing, tooth brushing assistance, denture wearing, dressing assistance, and the like. In addition, if the event is "wake-up 2", wheelchair transfer and walking assistance may be required. Regular (fixed time) events (care events) other than the events determined by the detection unit 10 include beverages, meal assistance, excretion assistance, wheelchair transfer, walking assistance, position change (prevention of bedsores), and bathing assistance. . For these regular care events, an alert may be generated by the care call unit 14 or the like at the scheduled time. 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 care history (history information). This care history is mainly input 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 switch, and a care call (also referred to as a nurse call) is issued when the switch is pressed by the care recipient 70 or the like. A voice microphone may be used to detect a care call instead of the push-button switch. When the switch of the care call unit 14 is pressed, that is, when a care call is detected, the control unit 11 transmits a notification of the care call 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 voice communication by transmitting and receiving voice signals to and from the staff terminal 40 and the like via the communication unit 12 . Note that 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 includes a Doppler shift type body motion sensor that transmits and receives microwaves to and from the bed 60 and detects the Doppler shift of microwaves caused by body motion (for example, respiratory motion) of the person to be cared 70. You may have more. This body motion sensor detects the body motion of the chest (vertical motion of the chest) associated with the respiratory motion of the person to be cared 70, and detects disturbances in the cycle of the body motion of the chest and the body motion of the chest that is below a preset threshold value. When the amplitude of motion is detected, it is recognized as a micromotion anomaly.

In the present embodiment, the change in the state recognized by the detection unit 10 regarding the person to be cared 70, such as wake-up 1, wake-up 2, fall, fall, abnormal micromotion, etc., is notified (issued) to the care staff 80. is called an event. This 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 .

(Determination device 20)
FIG. 4 is a block diagram showing a schematic configuration of the determination device 20. As shown in FIG. The determination device 20 is also called a server, and includes a control unit 21, a communication unit 22, and a storage unit 23 (also called a database). The control unit 21 has a configuration similar to that of the control unit 11 of the detection unit 10, and includes a CPU, a RAM, a ROM, and the like. The communication unit 22 has a configuration similar to that of 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. In addition, 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 onset of BPSD. This notification destination includes, for example, the staff terminal 40 and the fixed terminal 30 .

This determination device 20 may be provided in the same building as the living room for the care recipient 70, or may be provided at a remote location and connected via a network. Moreover, the storage unit 23 may be configured as a separate body. 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 component is communicatively connected to each other by a bus.

The storage unit 23 stores various types of information such as an event list, a photographed image, a list of care recipients, a care list, and the like. The list of care recipients includes information such as the name of the care recipient 70, the level of certification for long-term care, the presence or absence of dementia, the level of dementia if present, the use of a wheelchair, and the like. In addition, the care list includes a care history (described later) such as the amount of food intake, the amount of water intake, and the state of excretion regarding each care subject 70 . A predetermined area of the HDD of the storage unit 23 functions as a temporary storage unit, and temporarily stores captured images output from each camera 13 that captures an observation area for a predetermined period of time (for example, several tens of minutes to several tens of hours). 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 period of time for each observation area as recorded video. In loop recording, when the recording time is equal to or longer than a predetermined time, captured images with the oldest time stamps are overwritten with new captured images. The predetermined time for temporary storage may be, for example, several seconds, several minutes, several hours, several days, several weeks, several months, etc., and can be arbitrarily determined in view of the capacity and necessity of the storage device. Temporary storage may be performed in a storage unit such as an HDD of the control unit 11 . In addition, when a predetermined event such as a fall, wake-up 1, or wake-up 2 occurs, captured images (videos) of a predetermined time (for example, several seconds to several tens of seconds) including the time when the event occurred correspond to the event list. events to be tagged.

In addition, the determination device 20 detects which care recipient 70 the event such as wake-up 1, wake-up 2, fall, care call, etc., detected independently or in cooperation with the detection unit 10 as described above. Determine (identify) whether Specifically, the detection unit 10 that has detected the event is ID-managed, and from the room number in which the detection unit 10 is installed, the care recipient 70 (that is, the resident of the room) associated therewith is determined. do. Then, the determined event type and the care recipient 70 are associated with each other and added to the event list in the storage unit 23 .

(First acquisition unit 211, second acquisition unit 212, determination unit 213)
The first acquisition unit 211 of the control unit 21 acquires action information regarding a predetermined action of the care recipient 70 (cared person). The predetermined action is, for example, a wake-up 1 or wake-up 2 event for the care recipient 70 . The first acquisition unit 211 analyzes the behavior from the captured images tagged with these wake-up 1 or wake-up 2 events. 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 the movement trajectory from the position information (the center of gravity or the center) of the human silhouette or the human rectangle surrounding the human silhouette. demand. Then, the first acquisition unit 211 acquires action information from the movement trajectory. The behavior information is, for example, the stagger level during walking. The determination index value of the sway level (degree) is calculated from the amount of vibration with a period shorter than the walking cycle from the movement trajectory in the bird's-eye view image, or the difference between the position information at each point in the movement trajectory and the moving average of the position information. can be calculated from the integrated value of

As the swaying, head swaying in a sitting position may be used. Specifically, when waking up, the sway level of the head is calculated from the movement trajectory of the position (for example, the center of gravity or the center) of the head rectangle in the sitting position (during sitting on the edge) of the bed 60. judge. For example, the care subject 70 who needs assistance from the care staff 80 has little opportunity to evaluate the swaying during walking because the care subject 70 is assisted to get up in the wake-up care. Head sway can be used as behavioral information 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 person to be cared 70 for determination. In the following description, unless there is a specific description, the terms "stagger" and "stagger level" are used as the stagger during walking and the stagger level during walking, respectively.

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

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. As shown in FIG. The fixed terminal 30 is a so-called PC (Personal Computer), and includes a control section 31, a communication section 32, a display section 33, an input section 34, and an audio input/output section 35, which are configured by a CPU, a RAM, and the like. The fixed terminal 30 is arranged, for example, in a nurse station.

In addition, the care staff 80 or technical staff, etc., through the fixed terminal 30, when the detection unit 10 is attached to each room (living room), associate the room number with the detection unit 10, position information of the installed object, that is, calibration and designation of outline information of upward view by the camera 13 on the ceiling. In addition, identification information such as the name and ID number of the care recipient 70 who is hospitalized or resides there is associated with each room number.

(Staff terminal 40)
FIG. 6 is a block diagram showing a schematic configuration of the staff terminal 40. As shown in FIG. The staff terminal 40 includes a control section 41, a wireless communication section 42, a display section 43, an input section 44, and an audio input/output section 45, which are interconnected by a bus. The control unit 41 has a configuration similar to that of the control unit 11 of the detection unit 10, and includes a CPU, a RAM, a ROM, and the like. 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 made of liquid crystal or the like. The display unit 43 and the input unit 44 display to the care staff 80 an event list and various operation screens listing a plurality of events included in 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 voice communication by the care staff 80 with other staff terminals 40 via the wireless communication unit 42 . The staff terminal 40 is a device that functions as a user interface of the monitoring system 1, and can be configured by portable communication terminal devices such as tablet computers, smart phones, or mobile phones. Further, the staff terminal 40 functions as a terminal device for inputting a care history and receiving notification of the possibility of developing BPSD, as will be described later.

The care staff 80 performs login authentication processing to the determination device 20 through the assigned staff terminal 40 at the start of work. The care staff 80 inputs the staff ID and password through the touch panel (the display unit 43 and the input unit 44 ) of the staff terminal 40 and transmits them to the determination device 20 . The determination device 20 compares the authentication information stored in the storage unit 23 and transmits the authentication result corresponding to the authority of the care staff 80 to the staff terminal 40, thereby completing the login authentication.

(Processing for Determining Possibility of Onset of BPSD by Determination Device According to First Embodiment)
Next, processing for determining the possibility of developing BPSD in the first embodiment will be described with reference to FIGS. 7 to 11. FIG. FIG. 7 is a flow chart showing the procedure for determining the possibility of developing BPSD. The processing shown in FIG. 7 is performed for each care recipient 70 . This process may be performed periodically, or may be performed irregularly according to an instruction from the manager or the like through the fixed terminal 30 .

(Step S10)
The determination device 20 performs step S60, which will be described later, according to the care target person information such as the certification of the level of care required and the physical information of the care target person 70 who is the determination target recorded in the care target person list of the storage unit 23. Set the threshold of the action judgment level used in . For example, when staggering during walking is determined as behavior information, the threshold value of the behavior determination bell increases as the level of care required is certified.

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

(Step S30)
The first acquisition unit 211 of the determination device 20 determines the position information of the human silhouette, the human rectangle, or the head rectangle (see FIG. 8A described later) at each time in the photographed image obtained in step S20. , and obtains action information from the movement trajectory. As the behavior information, the stagger level can be used as described above. Levels are divided into multiple levels depending on the degree of sway. One or a plurality of photographed images may be used for determining behavior information acquired in step S20. In one case, for example, an image captured during the daytime within the observation area (living room) may be used to calculate the determination index value used for determining the level of stagger. Alternatively, images captured before and after a standard wake-up time predetermined in the facility may be used. In the case of a plurality of images, for example, a plurality of captured images taken before and after waking up over the past several days are used. In the case of a plurality of values, the stagger 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 swaying during walking (or head swaying while sitting) when waking up (immediately after waking up). (sufficient) appears as wobble.

8A and 8B are schematic diagrams showing analysis of action information based on the movement trajectory of the person being watched over 70, which is performed based on captured images. FIG. 8A is a schematic diagram showing captured images 505 before and after the wake-up time. The figure is a bird's-eye view image from above, and shows an image taken at the time of leaving the bed, out of the imaged images composed of a plurality of frames of a predetermined length of time in which the care subject 70 to be judged is imaged. ing. In FIG. 8A, the head rectangle 510 is shown as the thick rectangular frame area.

FIG. 8B is a schematic diagram 506 showing the movement trajectory obtained from the position information of the head rectangle 510 after FIG. 8A. The area of the schematic diagram 506 corresponds to the captured image 505 of FIG. 8A. The level (degree) of stagger is determined from the movement locus. For example, it can be evaluated by the amount of vibration with a period shorter than the walking cycle of the movement trajectory, or by the integrated value of the difference (lateral wobble) between the position information at each point in the movement trajectory 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 recipient 70 to be determined from the care list stored in the storage unit 23 . A procedure for inputting a care history by the care staff 80 will now be described with reference to FIGS. 9A and 9B.

Although illustration is omitted, the care list includes a plurality of care events. Each care event corresponds to one care process. A care list, also called a care plan, is pre-generated based on data previously entered by the manager along with the care plan. The care list includes care timing (schedule), care type (care name), room number, care recipient, and assigned care staff. "Care Timing" is entered by the manager along the care plan and indicates the scheduled time at which the care event will occur. The "type of care" includes excretion assistance, wake-up assistance, meal assistance, wheelchair transfer assistance, postural change assistance, hydration assistance, walking assistance, bathing assistance, and the like. Excretion assistance is performed periodically by the care staff 80, such as pad replacement and accompanying cleaning, or replacement of a portable toilet bowl (urine bottle). Wake-up assistance is assistance provided by the care staff 80 when the person to be cared 70 gets out of bed in the morning, and meal assistance and water intake assistance are assistance for eating or hydration. Wheelchair transfer assistance is assistance in moving from a bed to a wheelchair and sitting down. Posture change assistance is assistance for changing a person's body position 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, etc. through the fixed terminal 30, for example, according to the shift status of the care staff 80 in charge on the current day or the previous day.

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

Areas a11 to a16 and a button 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 fixed bar displays the current time and the like. Also, the tab area is horizontally scrollable. Area a12 displays information on care staff 80 who use staff terminal 40 (that is, who have logged in), an icon indicating the type of care event (excretion assistance), and information on care recipient 70. FIG. Areas a13 to a15 are provided for entering the type and amount of excrement corresponding to the type of excretion container (device), such as pad, toilet, and portable. The area a16 has a column for selecting the time when care was actually performed (time relative to the current time). The care staff 80 fills in each entry field as necessary, and operates the button b1 after completing the entry, thereby transmitting the input data from the staff terminal 40 to the determination device 20 . It should be noted that the actual excretion situation (time, etc.) may be input from the staff terminal 40, the fixed terminal 30, etc. as a care history (excretion history) by hearing from the care recipient 70 or the like. . In step S40, the care history of the care list input and recorded in such a procedure is obtained.

(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 since the last defecation record. Alternatively, as status information, an average time interval may be obtained from records of defecation recorded for a predetermined period of time (for example, several weeks or days) from the present time, and used as the predetermined status information.

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

The threshold value of the behavior determination level acquired in step S10 is used to determine the magnitude of the sway as the behavior information. The determination unit 213 of the determination device 20 determines “large” when the calculated determination index value of the stagger level is equal to or greater than the threshold, and determines “small” when it is less than the threshold.

The determination unit 213 uses, for example, the elapsed time from the record of the defecation state immediately before the defecation state as the state information. The threshold is, for example, 4 days (96 hours). The determination unit 213 determines that the state information is “long” when the state information is equal to or greater than the threshold, and determines “below normal (not long)” when the state information is less than the threshold. In the example of the table in FIG. 10, the determining unit 213 determines that there is no possibility of developing BPSD when the stagger is small and the defecation state is below normal. On the other hand, when one of "severe stagger" and "long defecation state" is satisfied, it is determined that there is a possibility of developing BPSD. Note that the table in FIG. 10 is merely an example, and by appropriately setting the threshold, it may be determined that there is a possibility of developing BPSD only when both the stagger and the defecation state information are equal to or greater than a predetermined value. good.

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

As described above, in the determination device 20 according to the first embodiment, the first acquisition unit 211 of the control unit 21 obtains the care recipient's predetermined Behavior information about the behavior is acquired, the second acquisition unit 212 acquires history information about the predetermined condition of the care receiver, and the determination unit 213 determines the possibility of BPSD onset of the care receiver from the behavior information and the history information. and output the judgment result. This makes it possible to determine the possibility of developing BPSD without depending on the caregiver's experience, and to provide useful information for caregiving. In particular, the care staff 80 can recognize whether there is a possibility of developing BPSD by referring to the output determination result. Then, the care staff 80 is urged to make more frequent rounds of the possible care recipients 70 and to carefully observe them during regular rounds. In addition, as an advance care to prevent the onset of BPSD from progressing, the care staff 80 can call out to the care recipient 70 who has been determined to have a possibility of developing BPSD, and guide them to activities, recreation, and walks.

(Second embodiment)
Next, a determination device 20 according to a second embodiment will be described with reference to FIGS. 12 to 15. FIG. In the second embodiment, captured images for a predetermined time period are recorded in association with events (wake-up 1, wake-up 2, etc.) detected by the detection unit 10, and the determination device 20 determines behavior information based on the captured images. get. In the second embodiment, the detector 10 functions as part of the determination device 20 .

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

(Processing related to event determination (steps S110 to S210))
(Step S110)
As shown in FIG. 12 , the detection unit 10 detects movement of the care recipient 70 in the observation area or a care call event by the care recipient 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 person to be cared for 70 .

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

(Steps S140, S150)
The determination device 20 updates the event list. Also, the image data of the moving images before and after the time of occurrence or the image data of 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 images to the determination device 20, and the determination device 20 overwrites the images for a predetermined time period (for example, the past several hours) in the temporary storage unit. Remember. Then, when an event occurs and event information is received from the detection unit 10, the determination device 20 may read still images or moving images around the time of occurrence from the temporary storage unit and store them in association with the event. good.

(Step S160)
If the event list is updated by detecting and adding a new event or by changing the status of the event (step S190 described later), the determination device 20 updates the updated event list by: It is distributed to all staff terminals 40 that are logged in. Note that the delivery destination at this time may be delivered only to the staff terminal 40 used by the care staff 80 in charge of the care recipient 70 who caused the event. Each staff terminal 40 that has received the event list returns an acknowledgment command (not shown) in response to receiving the event list from the determination device 20 . It should be noted that the transmission of the event list from the determination device 20 may be performed by transmitting only difference data. For example, only changed parts, that is, events that have been added or updated with respect to the previously transmitted event list, are transmitted to all staff terminals 40 as an event list.

(Step S170)
Each staff terminal 40 updates the display contents 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 details of the event using an operation screen (not shown) displayed on the staff terminal 40 . This operation screen displays an image indicating the status of the event (occurrence time, elapsed time from occurrence, name of the person to be cared for, thumbnail image of the image taken when the event occurred), and whether or not the care staff 80 themselves will respond. A "response 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 "correspond" button, and the determination device 20 responds with an approval notification.

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

FIG. 13 is an example of an event list stored in the storage unit 23. As shown in FIG. This event list includes a plurality of events created and updated by the processes of steps S110 to S210 in 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 sent in step S120 is added to the end of the event list.

As shown in FIG. 13, each event includes an automatically assigned primary key event ID, detection unit ID (room number), target person (care target person), event type, date and time of occurrence (time), and recorded image data (i101 to i108), and information on the correspondence status. The image data is image data (captured image) of a moving image or a still image captured by the detection unit 10 when an event occurs as described above (step S130). Although illustration is omitted, the handling status includes status (handled/unhandled), handling staff, and handling date and time (time).

In the example shown in FIG. 13, events with event IDs d010, d014, and d016 are care calls, events with event IDs d011 to d013 are events related to wake-up (wake-up 1, wake-up 2), and event ID d015. The event is a fall. In addition, each event including wake-up 1 and wake-up 2 is associated with a photographed image of a predetermined time (several seconds to several tens of seconds) immediately after the occurrence time of the event or before and after the occurrence time (image data i101). ~i107).

(Processing for Determining Possibility of Onset of BPSD by Determination Device 20 According to Second Embodiment)
Next, the process of determining the possibility of developing BPSD will be described with reference to FIGS. 14 and 15. FIG. FIG. 14 is a flow chart showing the procedure for determining the possibility of developing BPSD by the determining device 20 according to the second embodiment. The flowchart in FIG. 14 corresponds to FIG. 7, and steps S310 to S360 correspond to steps S10 to S60 in FIG. 7, respectively.

(Step S310)
Here, the same processing as in step S10 is performed. Specifically, the determination device 20 is stored in the care target person list of the storage unit 23, and the care target person 70 to be determined is determined according to the care target person information such as the certification of the level of care required, physical information, etc. , the threshold value of the action determination level used in step S360, which will be described later, is set.

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

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

In step S330, as shown in FIG. 15, the first acquisition unit 211 compares the calculated sway level determination index value with a plurality of threshold values set in step S310, thereby determining the level 1 to level 4 in a plurality of stages. judge. From level 1 to level 4, swaying increases in order. Level 1 has the smallest fluctuation and level 4 has the largest fluctuation. The second acquisition unit 212 also determines four levels of the defecation state information according to the elapsed time from the last defecation performance record. From level 1 to level 4, the elapsed time becomes longer. For example, level 1 is less than 1 day, level 2 is 1 day, level 3 is 2-3 days, and level 4 is 4 days or more. The determining unit 213 determines the possibility level of developing BPSD using determinations 1 to 4 based on the combination of the behavior information and the state information. In each of the multiple stages of judgments 1 to 4, the probability of onset increases in order of "no possibility", "caution information", "advance care recommended", and "advance care required".

(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 results are determinations 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 terminal devices such as the fixed terminal 30 and the staff terminal 40 of the determination result through the communication unit 22 . The notification destination at this time is preferably a notification destination corresponding to the target care recipient 70 . For example, the control unit 21 sends the determination result to the staff terminal 40 used by the care staff 80 by the communication unit 22, with one or a group of care staff 80 in charge of the care of the person 70 being cared for as the notification destination. Notice. The content of this notification may be the name of the person to be cared 70 and a mere description of the possibility, or may have different content according to the determination result. For example, along with the content of the determination level, care precautions corresponding to each determination level may be included. Note that the notification timing may be performed when the care staff 80 logs in, or may be performed periodically.

As described above, in the second embodiment, in the determination device 20, the first acquisition unit 211 of the control unit 21 performs , the second acquisition unit 212 acquires history information related to the predetermined state of the care receiver, and the determination unit 213 determines from the behavior information and the history information The possibility of BPSD onset of the cared person is determined, and the determination result is output. In particular, the care staff 80 in charge of providing care can perform appropriate care and advance care to prevent progression of BPSD onset, as in the first embodiment, based on the notified possibility of onset of BPSD.

The configuration of the determination device 20 described above and the monitoring device 1 including this are the main configurations for describing the features of the above-described embodiment, and are not limited to the above-described configuration, and are within the scope of the claims. In can be variously modified. Moreover, it does not exclude the configuration provided in general determination devices and monitoring systems. For example, the functions of the determination device 20 may include components other than the above components, or may not include some of the above 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 functioning as part of the control unit 21 of the determination device 20 detects the occurrence of an event. ) 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 photographed image, and stores the photographed images of a predetermined time before and after the event occurrence time in the storage unit 23 in association with the event.

Furthermore, the processing in the determination device 20 according to the embodiment described above may include steps other than the steps of the flowcharts described above, or may not include some of the steps described above. Also, the order of steps is not limited to the embodiment described above. Furthermore, each step may be combined with other steps and executed as one step, may be executed while being included in other steps, or may be divided into a plurality of steps and executed.

For example, the process of determining whether or not notification in step S370 of FIG. 14 is necessary is omitted, and if 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.

Moreover, means and methods 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 Versatile 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 program may be provided as independent application software, or may be incorporated as a function into the software of the device such as the detection unit.

1 monitoring system 10 detection unit 11 control unit 12 communication unit 13 camera 14 care call unit 15 voice input/output unit 20 determination device 21 control unit 211 first acquisition unit 212 second acquisition unit 213 determination 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 recipient 80 care staff

Claims (19)

It has a camera that captures a cared person in an observation area and generates a captured image, and based on the captured image, determines the occurrence of an event such as getting up, getting out of bed, or falling of the cared person, and detects the event that has occurred. Used in a monitoring system that notifies the staff terminal used by the staff who cares for the care recipient, and stores the history information of care for the care recipient in the storage unit by input through the staff terminal by the staff, A determination device,
a first acquisition unit that acquires action information related to a predetermined action of the care receiver based on a photographed image of the care receiver in an observation area of the camera ;
a second acquisition unit that acquires history information about a predetermined state of the care receiver from the storage unit that stores history information of care about the care receiver;
a determination unit that determines a possibility of BPSD onset of the care-receiver based on the behavior information acquired by the first acquisition unit and the history information acquired by the second acquisition unit;
An output unit that outputs the determination result of the determination unit ,
The determining unit determines occurrence of an event of getting up, getting out of bed, or falling of the care-receiver based on the photographed image, and determines the occurrence of the wake-up event immediately after, or before and after the occurrence of the wake-up event. record in association with the event of
The determination device, wherein the first acquisition unit acquires action information regarding a predetermined action of the care-receiver based on the captured image recorded in association with the wake-up event. The determination device according to claim 1, wherein the first acquisition unit detects the movement trajectory of the care-receiver based on the photographed image, and acquires the behavior information from the detected movement trajectory. The behavior information is the stagger level when waking up,
The determination device according to claim 2 , wherein the first acquisition unit determines the sway level of the care-receiver from the movement trajectory during walking detected based on the photographed image upon waking. The behavior information is the stagger level when waking up,
The first acquisition unit determines the sway level of the care-receiver from the movement trajectory of the head in a sitting position, which is detected based on the photographed image at the time of waking up. 3. The determination device according to 3 . 5. The history information is the defecation history of the care-receiver, and the predetermined state is information indicating an elapsed time from defecation or a time interval between defecations. judgment device. The behavior information is the stagger level when waking up,
The first acquisition unit determines the sway level of the care-receiver from a movement trajectory of the care-receiver detected based on the captured image at the time of waking,
When the sway level is a predetermined value or more and/or when the elapsed time or the time interval is a predetermined value or more, the determination unit determines that the care-receiver is likely to develop BPSD. 5. The determination device according to 5 . a first acquisition unit that acquires action information related to a predetermined action of the care receiver based on a photographed image of the care receiver in an observation area;
a second acquisition unit that acquires history information about a predetermined state of the care receiver from a storage unit that stores history information about the care receiver ;
a determination unit that determines a possibility of BPSD onset of the care-receiver based on the behavior information acquired by the first acquisition unit and the history information acquired by the second acquisition unit;
An output unit that outputs the determination result of the determination unit,
The behavior information is the stagger level when waking up,
The history information is the defecation history of the care-receiver, the predetermined state is information indicating an elapsed time from defecation or a time interval between defecations,
The first acquisition unit determines the sway level of the care-receiver from a movement trajectory of the care-receiver detected based on the captured image at the time of waking,
The determination device, wherein the determination unit determines the possibility of onset of BPSD in multiple stages based on a combination of the sway level and the elapsed time or the time interval. a first acquisition unit that acquires action information related to a predetermined action of the care receiver based on a photographed image of the care receiver in an observation area;
a second acquisition unit that acquires history information about a predetermined state of the care receiver from a storage unit that stores history information about the care receiver ;
a determination unit that determines a possibility of BPSD onset of the care-receiver based on the behavior information acquired by the first acquisition unit and the history information acquired by the second acquisition unit;
An output unit that outputs the determination result of the determination unit,
The behavior information is the stagger level when waking up,
The history information is the defecation history of the care-receiver, the predetermined state is information indicating an elapsed time from defecation or a time interval between defecations,
The first acquisition unit determines the sway level of the care-receiver from a movement trajectory of the care-receiver detected based on the captured image at the time of waking,
The determination device, wherein the determination unit determines that the care-receiver has a possibility of developing BPSD when the sway level is a predetermined value or more and the elapsed time or the time interval is a predetermined value or more. When the determination unit determines that there is a possibility of developing BPSD for the care recipient,
The determination device according to any one of claims 1 to 8 , wherein the output unit notifies the terminal device that there is a possibility that the care recipient may develop BPSD. It has a camera that captures a cared person in an observation area and generates a captured image, and based on the captured image, determines the occurrence of an event such as getting up, getting out of bed, or falling of the cared person, and detects the event that has occurred. Used in a monitoring system that notifies the staff terminal used by the staff who cares for the care recipient, and stores the history information of care for the care recipient in the storage unit by input through the staff terminal by the staff , A control program executed by a determination device,
a step (a) of acquiring action information related to a predetermined action of the care receiver based on a photographed image of the care receiver in the observation area of the camera ;
step (b) of acquiring history information about a predetermined condition of the care receiver from the storage unit storing history information of care about the care receiver;
Step (c) of determining the possibility of BPSD onset of the care-receiver based on the behavior information acquired in step (a) and the history information acquired in step (b);
a step (d) of outputting the determination result of the step (c);
Based on the photographed images, it is determined whether the cared person gets up, gets out of bed, or falls, and the photographed images immediately after the occurrence of the wake-up event, or before and after the occurrence of the wake-up event, are associated with the wake-up event. and a step (e) of recording with
In the step (a), to cause a computer that controls a determination device to acquire action information related to a predetermined action of the care-receiver based on the captured image recorded in association with the wake-up event. control program. 11. The control program according to claim 10, wherein, in said step (a), a locus of movement of said care-receiver is detected based on said photographed image, and said behavior information is obtained from said detected locus of movement. The behavior information is the stagger level when waking up,
12. The control program according to claim 11 , wherein in said step (a), said sway level of said care-receiver is determined from said locus of movement during walking detected based on said photographed image upon waking. The behavior information is the stagger level when waking up,
In said step (a), said sway level of said care-receiver is determined from said locus of movement of said head in a sitting position, which is detected based on said photographed image upon waking up . 13. The control program according to 12 . 14. A method according to any one of claims 10 to 13 , wherein the history information is the defecation history of the care-receiver, and the predetermined state is information indicating an elapsed time from defecation or a time interval between defecations. control program. The behavior information is the stagger level when waking up,
In the step (a), the sway level of the care receiver is determined from the movement trajectory of the care receiver detected based on the photographed image at the time of waking;
In the step (c), if the stagger level is a predetermined value or more and/or if the elapsed time or the time interval is a predetermined value or more, the cared person is determined to have a possibility of developing BPSD. The control program according to claim 14 . a step (a) of acquiring action information related to a predetermined action of the care receiver based on a photographed image of the care receiver in an observation area;
step (b) of acquiring history information about a predetermined condition of the care receiver from a storage unit storing history information about the care receiver;
Step (c) of determining the possibility of BPSD onset of the care-receiver based on the behavior information acquired in step (a) and the history information acquired in step (b);
a step (d) of outputting the determination result of the step (c);
including
The behavior information is the stagger level when waking up,
The history information is the defecation history of the care-receiver, the predetermined state is information indicating an elapsed time from defecation or a time interval between defecations,
In the step (a), the sway level of the care receiver is determined from the movement trajectory of the care receiver detected based on the photographed image at the time of waking;
In the step (c), the combination of the sway level and the elapsed time or the time interval determines the possibility of developing BPSD in multiple stages,
A control program for causing a computer that controls the determination device to execute processing . a step (a) of acquiring action information related to a predetermined action of the care receiver based on a photographed image of the care receiver in an observation area;
step (b) of acquiring history information about a predetermined condition of the care receiver from a storage unit storing history information about the care receiver;
Step (c) of determining the possibility of BPSD onset of the care-receiver based on the behavior information acquired in step (a) and the history information acquired in step (b);
a step (d) of outputting the determination result of the step (c);
including
The behavior information is the stagger level when waking up,
The history information is the defecation history of the care-receiver, the predetermined state is information indicating an elapsed time from defecation or a time interval between defecations,
In the step (a), the sway level of the care receiver is determined from the movement trajectory of the care receiver detected based on the photographed image at the time of waking;
In the step (c), when the sway level is a predetermined value or more and the elapsed time or the time interval is a predetermined value or more, it is determined that there is a possibility of developing BPSD in the cared person.
A control program for causing a computer that controls the determination device to execute processing . In the step (c), when it is determined that there is a possibility of developing BPSD for the care recipient,
18. The control program according to any one of claims 10 to 17, wherein in step (d), the terminal device is notified that the care recipient may develop BPSD. a step (a) of acquiring action information related to a predetermined action of the care receiver based on a photographed image of the care receiver in an observation area;
step (b) of acquiring history information about a predetermined condition of the care receiver from a storage unit storing history information about the care receiver;
Step (c) of determining the possibility of BPSD onset of the care-receiver based on the behavior information acquired in step (a) and the history information acquired in step (b);
a step (d) of outputting the determination result of the step (c);
including
The behavior information is the stagger level when waking up,
The history information is the defecation history of the care-receiver, the predetermined state is information indicating an elapsed time from defecation or a time interval between defecations,
In the step (a), the sway level of the care receiver is determined from the movement trajectory of the care receiver detected based on the photographed image at the time of waking;
In the step (c), the combination of the sway level and the elapsed time or the time interval determines the possibility of developing BPSD in multiple stages,
judgment method.

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