WO2019021744A1

WO2019021744A1 - Alarm control system, detection unit, care support system, and alarm control method

Info

Publication number: WO2019021744A1
Application number: PCT/JP2018/024711
Authority: WO
Inventors: 和浩小島
Original assignee: コニカミノルタ株式会社
Priority date: 2017-07-27
Filing date: 2018-06-28
Publication date: 2019-01-31
Also published as: JP7120238B2; JPWO2019021744A1

Abstract

This care support system (1) is provided with: a behavior detection unit that detects the behavior or posture of a subject within a room and the position of the subject; a timer unit that measures the duration of the behavior or posture; a behavior information storage unit (501b) that stores past behavior information for the subject from a predetermined period in the past and a permissible time set in accordance with the past behavior information; and an alarm control unit (512) that controls the issuing of an alarm to a terminal possessed by a staff member on the basis of the information stored in the behavior information storage unit (501b) and information detected by the behavior detection unit and the timer unit regarding the current behavior or posture of the subject. The alarm control unit (512) issues an alarm to the terminal when the duration of the current behavior or posture of the subject within the room is longer than the permissible time.

Description

Alarm control system, detection unit, care support system and alarm control method

The present invention is applied to, for example, a care support system for supporting the daily life of a subject, and a detection control system for controlling generation of a notification to a terminal owned by a staff, and a detection unit including the detection control system. The present invention relates to a care support system including an alert control system and an alert control method.

Conventionally, various systems have been proposed for supporting the lives of elderly people and care recipients. For example, in Patent Document 1, a system is proposed that records the past behavior of the resident and uses the presence or absence of the behavior to determine the necessity of safety confirmation in an apartment for elderly people consisting of a plurality of dwelling units. There is. That is, in this system, detection information indicating the presence or absence of the behavior of the resident in each dwelling unit and the date and time when the presence or absence of the behavior of the tenant is detected is sequentially stored in the detection information storage unit of the dwelling unit control device. And at the time of execution of safety confirmation, a safety advance confirmation signal is transmitted from the master unit to the dwelling unit control device of each dwelling unit. Each dwelling unit control device determines whether or not detection information indicating that there is a resident's action within a predetermined time before receiving the safety prior confirmation signal is stored in the detection information storage unit, If it is stored, determination result information indicating that is transmitted to the parent device. The parent machine that has received this determination result information sets the resident of the dwelling unit in which the dwelling unit control device that has transmitted the determination result information is installed out of the safety confirmation target.

As a result, the parent machine does not need to display on the display the information (safety status information) about the safety status of the tenant who has acted in the past (because it is presumed that the above-mentioned tenant is safe), Only the safety status information about the remaining tenants whose behavior has not been detected can be displayed on the display. That is, it is possible to reduce the number of tenants who should display the safety status information on the display (the tenants whose safety status should be checked). As a result, it is possible to reduce the workload when the administrator confirms the safety based on the safety status information displayed on the display.

JP-A-2010-61414 (see claim 1, paragraphs [0010], [0011], [0021], [0061], etc.)

By the way, in a medical institution such as a hospital or a nursing facility, the behavior and posture (hereinafter referred to as an example) of a patient or a cared person (hereinafter also referred to as a target person) are monitored. There is a system that issues an alarm. In such a system, the action of the target person is photographed by a camera, the image recognition processing is performed on the acquired image, and the action of the target person is in a dangerous state (for example, falling) based on the image recognition Decide whether or not. Then, when it is in a dangerous state, an alarm is notified (reported) to a terminal owned by the staff. As a result, the staff can rush to the target person to check the state of the target person.

As described above, conventionally, when detecting the behavior of the subject, only the motion of the body of the subject is detected by image recognition. For this reason, even if the action of the target person is a daily action that is not a dangerous state (action that is normally performed), depending on the movement of the body, it is determined that the situation should be notified to the terminal, resulting in There was a case to notify false notification. For example, if the target person is stretching in a posture close to the state of falling on the floor, it is not in a situation to be notified as a dangerous state, but it is determined as "falling" on the image. There was a case to report a false alarm. In addition, conversely, even if the situation should be notified, it may not be determined as the situation to be notified, and as a result, there may be cases in which the report is lost. For example, when the target person stumbles on the floor, there is a situation that should be notified as a fall, but because the movement of the body is small on the image, it may not be determined as the situation to notify and may be disappointed .

As described above, conventionally, only the movement of the subject's body was detected, and therefore, depending on the movement of the body, the action can not be accurately determined (whether the action should be notified or the action not to be notified correctly). As a result, it was not possible to suppress the occurrence of false alarm or false alarm.

Although the system of Patent Document 1 detects the presence or absence of the behavior of the resident within a predetermined time in the past, it discloses the means and method for accurately determining the current behavior in consideration of the past behavior. There is no

The present invention has been made to solve the above problems, and its purpose is to accurately determine the current behavior and posture of a subject from information based on the past behavior of the subject and to be accurate. An alert control system capable of suppressing the occurrence of false alarm or false alert by alert control based on proper judgment, a moving object detection unit including the alert control system, and a care support system including the alert control system; And providing a notification control method.

An alert control system according to one aspect of the present invention includes an action detection unit that detects an action or posture of a target person in a room and a position to take the action or the posture, and a duration time of the action or the posture A timing unit that counts time, the behavior or posture of the subject detected by the behavior detection unit during a predetermined period in the past, the position where the behavior or the posture is taken, and the behavior or time being clocked by the timing unit An action information storage unit that stores the duration of the posture as past action information of the subject and stores an allowance time set according to the action information, and is stored in the action information storage unit Alert to a terminal owned by staff based on information and information detected by the behavior detection unit and the timekeeping unit about the current behavior or posture of the target person And a notification control unit configured to control a notification, wherein the notification control unit controls the terminal when the duration of the action or posture of the target person in the living room is longer than the allowable time. Alert to

A detection unit according to another aspect of the present invention is a detection unit installed in the living room, and includes the above-described notification control system.

A care support system according to still another aspect of the present invention is a care support system including the above-described alert control system, which manages a detection unit installed in the living room and information output from the detection unit. A management server, the detection unit includes the behavior detection unit and the timekeeping unit, and the management server includes the behavior information storage unit and the notification control unit.

The alert control method according to still another aspect of the present invention detects an action or posture of a subject in a current living room, a position where the action or the posture is taken, and a duration of the action or the posture. Behavior detection process, the behavior or posture of the subject in the room during a predetermined period in the past, the position to take the behavior or the posture, and the past behavior including the behavior or the duration of the posture An alert control step of controlling alerting of a terminal owned by the staff based on the information and information detected in the action detecting step about the current action or posture of the target person, In the notification control step, the terminal is notified when the duration of the action or posture of the target person in the current room is longer than the allowable time set according to the action information in the past. Do.

Accurately determine the current behavior or posture by using information based on the subject's past behavior (for example, the permissible time determined according to the past behavior position and its duration) to determine the current behavior or posture can do. Therefore, occurrence of false alarm or false alarm can be suppressed by alert control based on accurate judgment.

FIG. 1 is an explanatory view showing a schematic configuration of a facility type care support system according to an embodiment of the present invention. It is an explanatory view showing typically a situation of a living room where a moving object detection unit of the above-mentioned care support system was installed. It is a block diagram which shows the schematic structure of the said moving body detection unit. It is a block diagram which shows the detailed structure of the optical detection part of the said moving body detection unit. It is an explanatory view showing a schematic structure of a visit type care support system. It is a block diagram which shows the detailed structure of the management server which the said facility type care support system has. It is explanatory drawing which shows an example of the various information memorize | stored in the action information storage part of the said management server. It is explanatory drawing which shows the other example of the various information memorize | stored in the said action information storage part. It is explanatory drawing which shows the further another example of the various information memorize | stored in the said action information storage part. It is an explanatory view showing typically the picture in the living room acquired by photography with the optical detection part of the above-mentioned moving body detection unit. It is a flowchart which shows the flow of the process by alerting | reporting control in the said care support system. It is a flowchart which shows the flow of the process by the other alerting | reporting control in the said care support system. It is a flowchart which shows the flow of the process by the other alerting | reporting control in the said care support system. It is a flowchart which shows the flow of the process by the other alerting | reporting control in the said care support system.

It will be as follows if one embodiment of the present invention is described based on a drawing. In the present specification, the staff refers to workers (doctor, carer (caregiver), nurse, etc.) engaged in medical care, nursing care or nursing, and the subject is the subject to be taken care of by the staff. Refers to the person (caregiver, patient, etc.) Also, care refers to taking care of a subject regarding medical care, care or nursing.

The notification control system and the notification control method of the present embodiment are applicable to a care support system shown below or a moving body detection unit included in the care support system. The above-mentioned care support system is roughly classified into a facility type and a visit type (including a visit medical type, a visit care type, and a visit nursing type). Hereinafter, each type of care support system will be described in order.

[Care support system (facility type)]
FIG. 1 is an explanatory view showing a schematic configuration of a facility type care support system 1 of the present embodiment. The care support system 1 is a system for supporting the daily life of a cared person living in a care facility or a patient (cared person) admitted to a hospital, and is also called a watching system. . The care receiver and the care recipient are persons targeted for support by the care support system 1. Here, as an example, a case where the care support system 1 is constructed in a care facility will be described.

In the care facility S, a staff station 100 and a living room 101 are provided. The staff station 100 is a so-called filling station of the staff T who supports the life of the care recipient who spends in the nursing home S. The staff station 100 is provided with a management server 100a. The management server 100a is communicably connected to a later-described moving object detection unit 10 installed in the living room 101 via the communication line 200, and includes a central processing unit (CPU; Central Processing Unit). . The communication line 200 described above is configured by, for example, a wired LAN (Local Area Network), a wireless LAN, an Internet line, or the like.

The management server 100a receives various types of information (for example, a photographed image in the living room 101 and vital information of the care recipient (for example, vital data indicating a breathing state) transmitted from the moving body detection unit 10 via the communication line 200. Management, and the received information is displayed on the display unit 100b _1. Thereby, in the staff station 100, the staff T sees the information displayed on the display unit 100b ₁ and sees the state of the care receiver (for example, it is possible to grasp the existence of a fall or respiratory condition). display unit 100b ₁ may be a personal computer 100b displays that are communicably connected to for example a management server 100a. Incidentally, the management server 100a is The management server 100 may be configured integrally with the personal computer 100 b. It will be described in detail later configuration of.

In addition, since the staff T possesses the terminal 300 capable of wireless communication with the management server 100a via the communication line 200, the staff T operates the terminal 300 to access the management server 100a to acquire various information. Is possible. Furthermore, the staff member T can also display various information transmitted from the management server 100a to the terminal 300 on the screen of the terminal 300 to grasp the state of the care receiver. In addition, as said terminal 300, multifunctional portable terminals, such as a tablet and a smart phone, and a notebook type personal computer can be assumed, for example.

At least one living room 101 is provided in the care facility S, and FIG. 1 shows the case where two living rooms 101 are provided as an example. In the living room 101, one bed 102 used by the care recipient is installed. Although a single room is assumed as the room 101 here, a multi-floor room such as a double room or a quadruple room may be used. In the case of multi-floored rooms, beds 102 are installed as many as the number of care recipients who spend in the living room 101.

FIG. 2: is explanatory drawing which shows typically the mode in the living room 101 in which the moving body detection unit 10 was installed. As shown in FIG. 1 and FIG. 2, the moving body detection unit 10 is installed on the ceiling portion 101 a of each living room 101, and is communicably connected to the communication line 200. When a plurality of beds 102 are installed in the living room 101, the moving body detection units 10 are installed by the number corresponding to the beds 102 in the living room 101.

[Moving object detection unit]
Next, the moving body detection unit 10 will be described. FIG. 3 is a block diagram showing a schematic configuration of the moving body detection unit 10. As shown in FIG. The moving body detection unit 10 is a non-contact sensor installed in the living room 101 of the cared person (target person) and detecting the state of the cared person in the living room 101 without contacting the cared person. The moving body detection unit 10 includes an image recognition system 20, a radio wave detection unit 30, a unit control unit 40 and a clocking unit 45. The motion detection unit 10 is also referred to as a sensor box because it includes various sensors such as the radio wave detection unit 30 and an optical detection unit 23 described later. The timer unit 45 is configured by a timer that counts time, and particularly measures the continuation time of the behavior or posture of the care receiver detected by the behavior detection unit 27 described later.

(Radio wave detector)
The radio wave detection unit 30 is a sensor that detects the state of the care recipient in the living room 101 by radiation and reception of radio waves. The radio wave detection unit 30 includes a radiation unit and a reception unit (not shown), and for example, is a microwave Doppler sensor that radiates microwaves in the 24 GHz band and receives reflected waves that are reflected and Doppler-shifted by the care recipient Configured Thereby, the radio wave detection unit 30 can detect the respiratory state (respiration rate), the sleep state (sleep or awake), the heart rate and the like of the care recipient as biological information (vital data) from the received reflected wave. .

In addition, when the care recipient is breathing (including during sleep), minute movement of the body (micro movement) occurs due to the respiration of the care recipient. For this reason, detecting the respiratory state and the sleep state of the care recipient is the same as detecting the movement of the care recipient. From this, it can be said that the radio wave detection unit 30 functions as a micro motion detection unit that detects micro motion of the care recipient (subject).

In addition, the radio wave detection unit 30 emits radio waves (microwaves), and compares the frequency of the radio waves (reflected waves) reflected by the care receiver with the frequency of the emitted radio waves, thereby It is also possible to detect body movement (body movement). The radio wave detection unit 30 may be a sensor that detects only one of body movement and body movement.

(Unit control unit)
The unit control unit 40 controls the operations of the image recognition system 20 and the radio wave detection unit 30, and performs image processing and signal processing on the information obtained from the image recognition system 20 and the radio wave detection unit 30. Is a control board that outputs the information to the management server 100a as information on the condition of the care recipient.

The unit control unit 40 includes a main control unit 41, an information processing unit 42, an interface unit 43, a storage unit 24, and an image recognition unit 25. The storage unit 24 and the image recognition unit 25 are provided in the unit control unit 40 here, but may be provided independently of the unit control unit 40. The details of the storage unit 24 and the image recognition unit 25 will be described later.

The main control unit 41 is configured of a CPU that controls the operation of each unit in the moving object detection unit 10. The information processing unit 42 and the image recognition unit 25 may be configured by the above-described CPU (may be integrated with the main control unit 41), or may be another calculation unit or a circuit that performs a specific process. It may be configured.

The information processing unit 42 is configured to perform predetermined processing on information (for example, image data) output from an optical detection unit 23 described later of the image recognition system 20 and information (for example, data related to a breathing state) Perform signal processing based on the algorithm of The information obtained by the signal processing is used for image recognition in the image recognition system 20 (in particular, the image recognition unit 25).

A network cable (not shown) of the communication line 200 is electrically connected to the interface unit 43. Information on the condition of the care receiver detected by the moving object detection unit 10 based on the image and the microwave is transmitted to the management server 100 a via the interface unit 43 and the communication line 200.

(Image recognition system)
The image recognition system 20 includes an illumination unit 21, an illumination control unit 22, and an optical detection unit 23.

The lighting unit 21 includes an LED (Light Emitting Diode) that emits infrared light (for example, near infrared light) so as to enable photographing in the dark, and is positioned on the ceiling portion 101 a of the living room 101. , Illuminate the interior of the room 101. For example, the illumination unit 21 includes a plurality of LEDs, and illuminates a floor surface 101b (see FIG. 2) in the living room 101 and a wall connecting the ceiling portion 101a and the floor surface 101b. Control of illumination (emission of infrared light) by the illumination unit 21 is performed by the illumination control unit 22.

The optical detection unit 23 is an imaging unit that captures an image by capturing the inside of the living room 101 under the illumination of the lighting unit 21, and in particular, captures a cared person in the living room 101 to acquire an infrared image. It is an infrared image sensor. After the information (image data) of the image in the living room 101 acquired by the optical detection unit 23 is temporarily stored in the storage unit 24 described later, for example, based on the transmission request from the management server 100a, the management server 100a Will be sent. The detailed configuration of the optical detection unit 23 is as follows.

FIG. 4 is a block diagram showing the detailed configuration of the optical detection unit 23. The optical detection unit 23 is disposed on the ceiling unit 101 a of the living room 101 adjacent to the illumination unit 21, and acquires an image of a viewpoint directly above, whose view direction is directly below, by photographing. The optical detection unit 23 includes a lens 51, an imaging device 52, an AD (analog / digital) conversion unit 53, an image processing unit 54, and a control calculation unit 55.

The lens 51 is, for example, a fixed focus lens, and is configured of a general super wide-angle lens or a fisheye lens. As the super wide-angle lens, a lens having a diagonal angle of view of 150 ° or more can be used. Thereby, it becomes possible to image the inside of the living room 101 from the ceiling portion 101a to the floor surface 101b.

The imaging device 52 is configured of, for example, an image sensor such as a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS). The imaging device 52 is configured by removing the IR cut filter so that the condition of the care recipient can be detected as an image even in a dark environment. An output signal from the imaging element 52 is input to the AD conversion unit 53.

The AD conversion unit 53 receives an analog image signal of an image captured by the imaging element 52, and converts the analog image signal into a digital image signal. The digital image signal output from the AD conversion unit 53 is input to the image processing unit 54.

The image processing unit 54 receives the digital image signal output from the AD conversion unit 53, and executes image processing such as black correction, noise correction, color interpolation, white balance, and the like on the digital image signal. . The signal after image processing output from the image processing unit 54 is input to the image recognition unit 25.

The control calculation unit 55 performs calculations such as AE (Automatic Exposure) related to the control of the imaging device 52, and also controls the exposure time and gain of the imaging device 52. In addition, the control calculation unit 55 executes calculations such as suitable light amount setting and light distribution setting for the illumination unit 21 as necessary, and executes control. The control calculation unit 55 may have the function of the illumination control unit 22 described above.

The above-described image recognition system 20 further includes the storage unit 24 and the image recognition unit 25 described above.

The storage unit 24 is a memory for storing control programs executed by the unit control unit 40 and various types of information, and includes, for example, a random access memory (RAM), a read only memory (ROM), and a non-volatile memory.

The image recognition unit 25 performs an image recognition process on the image data of the image acquired by the optical detection unit 23. More specifically, the image recognition unit 25 extracts the contour of the object, for example, from the image data after the image processing unit 54 of the optical detection unit 23 executes the image processing, and uses a method such as pattern matching. Execute image recognition processing to recognize the shape. Thereby, the image recognition unit 25 can recognize the state (action or posture) of the care receiver in the living room 101. As a state of the cared person who is in the living room 101, getting up, leaving, entering a bed (bed), falling, etc. can be assumed. Further, the image recognition unit 25 can also recognize (detect) the position where the care receiver takes an action or a posture in the living room 101 by the above-described image processing.

Therefore, particularly the optical detection unit 23 and the image recognition unit 25 of the image recognition system 20 detect the action or posture taken by the care recipient in the living room 101 and the position where the care recipient takes action or posture in the living room 101 It can be said that the action detection unit 27 is configured. The behavior detection unit 27 performs both detection of the behavior or posture of the cared person in the past and detection of behavior or posture of the cared person at present.

Generally, "action" refers to the movement of the body (dynamic state), and "posture" refers to the posture of the body (static state). Falling may be regarded as dynamic "action" (movement of falling) or as static "posture" (falling state).

[Care support system (visit type)]
FIG. 5 is an explanatory view showing a schematic configuration of the visit type care support system 1. The visit-type care support system 1 installs the above-described moving body detection unit 10 at each home (for example, the living room 110) of a target person who manages health, such as a carer or a carer, and each moving body detection unit 10 Is configured to be communicably connected to the management server 100a via the communication line 200, and the basic configuration is the same as the facility type care support system 1 except that the moving object detection unit 10 is installed in each building. Is the same.

[Detailed configuration of management server]
Next, the detailed configuration of the management server 100a described above will be described. In addition, although the care support system 1 of a plant | facility type | mold is demonstrated to an example below, the same structure is applicable also to the care support system 1 of a visit type | mold.

FIG. 6 is a block diagram showing the detailed configuration of the management server 100a. The management server 100 a includes a storage unit 501, a communication unit 502, and a control unit 503.

The storage unit 501 is configured by, for example, a hard disk, and includes a main storage unit 501a, an action information storage unit 501b, and a layout information storage unit 501c. The main storage unit 501a stores various information transmitted from the moving object detection unit 10 and a program executed by the control unit 503. The various information includes, for example, the daily body temperature of the care recipient, body movement (including movement, number of movements per unit time, amount of movement), body movement (respiration rate), blood pressure, sleep state, etc. It includes biological information (vital data), image information acquired by photographing with the optical detection unit 23, image recognition result by the image recognition unit 25, time information counted by the clock unit 45, and the like. The various information may be transmitted from the moving body detection unit 10 to the management server 100 a in response to a transmission request for information from the management server 100 a (for example, the overall control unit 511), or automatically from the moving body detection unit 10. May be sent to the management server 100a.

The behavior information storage unit 501b includes (1) the action or posture of the care recipient in the living room 101, and (2) the position of the action or posture in the living room 101 during the predetermined period in the past ( 3) The duration of the action or posture is stored as the past action information of the cared person, and (4) the permissible time set according to the above action information is stored.

The “action or posture” of (1) and the “position” of (2) are acquired by the action detection unit 27 of the moving body detection unit 10. Here, as the “position” of the above (2), the center of gravity of the shape (silhouette) of the care recipient obtained by image recognition is considered.

The “duration” of the above (3) is acquired by the timing unit 45 of the moving object detection unit 10. The “duration” may be an average value of the daily duration, may be the maximum value in the past, or may be the duration of the latest day (for example, yesterday).

The “permissible time” in the above (4) indicates a threshold to be compared with the current action or the duration of the posture to be described later, and the duration considered that the cared person is not in a dangerous state. Point to the upper limit of the tolerance range of This "permissible time" is set slightly longer than the past "duration" of (3) above, for example, by the setting input in the personal computer 100b (see FIG. 1), but the "duration" in the past is It may be set to the same time. In addition, the above “permissible time” may be set for each area (according to area) when the inside of the living room 101 is divided into a plurality of areas, or the inside of the living room 101 may be set as one area. It may be set with a value (a common value regardless of the place in the living room 101).

As the predetermined period in the past, for example, an arbitrary period from the time when the care receiver first enters the living room 101 to the present can be assumed, but in particular, the care recipient continues daily It is desirable to have a period of taking some behavior or attitude. As such a habitual behavior or posture, consider stretch as an example. In addition, the past action information may include information obtained by accumulating actions (already ended) within an arbitrary period in the far past, and the present as the latest point, from the past to the present The information on the latest action (causing the current action) up to may be included.

FIG. 7 shows an example of various information stored in the action information storage unit 501b. Here, a stretch is assumed as the action or posture of the cared person in a predetermined period in the past, and it is assumed that the stretch has been performed at any position in the living room 101 in the past. Therefore, in FIG. 7, the item (1) is omitted and only the items (2) to (4) are shown. As shown in the figure, for each of the positions A to D at which the care recipient has performed stretching in the living room 101 in the past, the duration time and allowance time of the stretching are stored in the behavior information storage unit 501b. Here, the permissible time is set for each of the positions A to D according to the duration of the past stretch, and the permissible time is also longer as the past duration is longer. The positions A to D in FIG. 7 correspond to the positions A to D in the photographed image of FIG. Incidentally, the position A corresponds to the position near the bed 102 in the living room 101, the position B corresponds to the central position of the living room 101, the position C corresponds to the position near the wall or corner of the living room 101, D corresponds to the position on the bed 102.

FIG. 8 shows another example of various information stored in the action information storage unit 501b. As shown in the figure, the “permissible time” of (4) may be set to be common to all the positions A to D regardless of the duration of the past stretch.

In FIGS. 7 and 8, four positions (positions A to D) are listed as an example of positions stored as past action information (positions where the care recipient performed stretching in the living room 101 in the past). However, the number of positions stored as past action information may be appropriately set according to the past action of the care recipient. For example, past behavior information may be stored in the behavior information storage unit 501b for two to three or five or more locations.

Moreover, FIG. 9 has shown the further another example of the various information memorize | stored in the action information storage part 501b. For example, if the care recipient performs stretching at a fixed position every day, only one position (for example, position B) may be stored as past action information. Then, the “duration time” of the above (3) or the “permissible time” of the above (4) may be set for the one position (position B).

The layout information storage unit 501 c stores layout information in the living room 101. The layout information includes not only the shape of the floor surface 101 b in the living room 101 (outer shape) but also information on the position and the shape of the bed 102 disposed in the living room 101. FIG. 10 shows an image in the living room 101 acquired by photographing with the optical detection unit 23 of the moving object detection unit 10. The image recognition unit 25 can recognize the rectangular bed 102 disposed in the living room 101 from the image acquired by the optical detection unit 23 by image recognition, and can grasp the positions of the four corners. When the positions of the four corners of the bed 102 are indicated by hitting points P1 to P4, the positional information of the hitting points P1 to P4 defines layouts and shapes of the bed 102 and layout information defining the sleeping area of the care receiver. The positional information (layout information) of the hitting points P1 to P4 is transmitted from the moving body detection unit 10 to the management server 100a and stored in the layout information storage unit 501c.

By storing the layout information in the living room 101 in the layout information storage unit 501c, the notification control unit 512 described later determines the current position of the action or posture of the care receiver based on the layout information. However, it becomes possible to grasp at which position in the living room 101 (for example, whether it is an area outside the bed 102).

In the case where the care receiver does not go to bed in bed 102 but lays a futon on floor surface 101 b to go to bed in the same manner as described above, image recognition in image recognition unit 25 makes room 101 available. The position and shape of the futon inside are recognized, and positional information of the duvet (dots at the four corners) is stored as layout information in the layout information storage unit 501c.

In addition, even when a chair or sofa on which the care receiver can sit can be arranged in the living room 101, the position and shape of the chair or sofa in the living room 101 can be recognized by the same image recognition as described above. . Then, position information of a chair or a sofa is stored in the layout information storage unit 501c as layout information. The position information of the bed 102 or the like may be stored as layout information in the layout information storage unit 501c by setting input on the personal computer 100b (see FIG. 1).

The communication unit 502 is an interface for inputting and outputting information with the outside (for example, the moving object detection unit 10 and the terminal 300), and includes a transmitting circuit, a receiving circuit, an antenna, and the like.

The control unit 503 includes an overall control unit 511 and an alarm control unit 512. The overall control unit 511 is a block that controls the operation of each unit of the management server 100a, and is configured of, for example, a CPU. Based on the information stored in the action information storage unit 501b and the information detected by the action detection unit 27 and the timekeeping unit 45 about the current action or posture of the care receiver, the notification control unit 512 causes the staff T to It is a block which controls the alerting | reporting of the warning to the terminal 300 to possess, for example, is comprised by CPU. The overall control unit 511 and the notification control unit 512 may be configured by the same CPU.

Hereinafter, a specific example of notification control to the terminal 300 by the notification control unit 512 will be described.

[Specific example 1]
FIG. 11 is a flow chart showing the flow of processing by notification control in the care support system 1 of the present embodiment. The alerting | reporting control method implement | achieved in the care support system 1 of this embodiment includes an action detection process (S1) and an alerting | reporting control process (S3, S5, S7).

(S1: Behavior detection process)
In S1, the action detection unit 27 of the moving body detection unit 10 detects the current action or posture taken by the cared person in the living room 101 and the position where the cared person takes action or posture in the living room 101. Further, the timing unit 45 of the moving object detection unit 10 counts the duration of the above action or posture. The information detected by the behavior detection unit 27 and the time counting unit 45 is transmitted from the moving body detection unit 10 to the management server 100 a and stored in the behavior information storage unit 501 b.

(S3, S5, S7; alert control process)
In S3, the notification control unit 512 determines the duration obtained in S1, that is, the duration of the behavior or posture of the care recipient in the current living room 101, and the permissible time stored in the behavior information storage unit 501b. (Refer to FIG. 7, FIG. 8). At this time, either of the allowable times shown in FIGS. 7 and 8 may be employed. Further, since the position of the action or posture of the care receiver is detected in S1, in S3, the above-mentioned allowable time (for example, the allowable time at position A) for the same position as the detected position of the current action or posture. ) And the above duration (for example, duration at position A).

When the duration is longer than the allowable time, the notification control unit 512 determines that the terminal 300 should be notified of an alarm, and issues a notification to the terminal 300 possessed by the staff T (S5). On the other hand, if the duration is equal to or less than the allowable time, the notification control unit 512 determines that the terminal 300 should not be notified, and stops the notification to the terminal 300 (S7).

When the care recipient falls down in the living room 101 and can not move, the duration time of the action or posture of the care recipient at present is longer than the allowable time according to the past behavior information (for example, the position and time of the stretch) It is assumed that If the current duration is longer than the allowable time, the alert control unit 512 determines that the terminal 300 should be notified, and the staff T issues a notification based on the alert. It is possible to detect that the condition is dangerous and immediately rush to the care recipient to confirm the condition of the care recipient or to take necessary measures such as contacting a doctor. Therefore, it is possible to avoid leaving the cared person in danger. That is, in a situation where the care receiver is in a situation where the terminal 300 should be notified as being in a dangerous state, it is possible to avoid losing a report without determining that the situation should be notified. In particular, even for a fall with a small amount of movement, which is confusing with a stretch, a stillness at the same position (the current duration time) will be notified if it continues for a long time, and therefore the risk of failure may be reduced. Moreover, since the terminal 300 is not notified until the above-mentioned continuation time exceeds the above-mentioned permission time, for example, the frequency of the notification is reduced compared with the case where the above-mentioned continuation time is notified before reaching the above-mentioned permission time. . Thereby, the inconvenience caused by frequently receiving a notification at the terminal 300 is also reduced.

On the other hand, when the care recipient is stretching as usual in the living room 101, the time required for the habitual action (action) does not fluctuate greatly on a daily basis, so the current duration is the above-mentioned allowance Often less than time. If the duration time is less than the permissible time, the alert control unit 512 stops alerting to the terminal 300, so that the care recipient is not in a dangerous state, for example, the care recipient is stretching. Although it is not the situation which should be notified to the terminal 300, generation | occurrence | production of what is called a false alarm notified to the terminal 300 can be suppressed.

That is, according to the above-described alerting control, information based on the past carer's behavior (position, duration, and allowable time set according to them) is reflected in the current behavior detection algorithm. , An alert to the terminal 300 is controlled. As a result, if there is an exceptional movement (for example, a fall) different from the usual (past), it can be properly reported as a dangerous state at present. Also, if the current movement is a fall and confusing movement (for example, stretching) and the frequency of occurrence is high (if it is a movement that is usually performed), the current duration is less than the allowable time. Can be suppressed on the condition that

Also, at S3, by comparing the duration with the permissible time, it is determined whether the current behavior or posture of the care recipient is likely to be the behavior or posture that is normally performed. be able to. For example, when the duration is equal to or less than the allowable time, the current cared person's behavior is likely to be an action (for example, a stretch) which is usually performed, and the duration is longer than the allowable time. In the long case, the current carer's behavior is likely to be unusual (eg, falling). This makes it possible to accurately determine the current behavior and posture of the care recipient.

That is, the allowance time is set according to the past action information of the care receiver, and the allowance time is used as a threshold to judge the current action and posture, thereby taking into consideration the action of the care recipient in the past. , Current behavior and attitude can be accurately determined. As a result, as described above, the occurrence of false alarm or false alarm can be appropriately suppressed by the alert control based on the correct determination.

Further, according to the above notification control, even if the position of the current behavior or posture of the care recipient is within the sleeping area (on the bed 102), if the current duration is longer than the allowable time. , The terminal 300 is notified. As a result, even when the cared person stands up on the bed and falls, the terminal 300 can be notified and the staff T can be notified.

Further, when the notification control unit 512 determines that the duration of the current action or posture is longer than the allowable time defined for the same position as the position of the action or posture of the cared person in the current living room 101. To the terminal 300 (S1, S3, S5). As a result, it can be appropriately determined whether the current behavior or posture of the care recipient in the living room 101 is close to the behavior or posture performed daily at the same position. Based on this, it is possible to control an alert to terminal 300.

Further, the action detection unit 27 includes an optical detection unit 23 and an image recognition unit 25. This makes it possible to reliably detect the behavior or posture of the care recipient in the living room 101 and the position thereof.

In addition, the care support system 1 includes a moving body detection unit 10 installed in the living room 101 and a management server 100 a that manages information output from the moving body detection unit 10. The moving body detection unit 10 includes an action detection unit 27. The management server 100a includes an action information storage unit 501b and a notification control unit 512. In the configuration of the care support system 1 described above, the notification control unit 512 of the management server 100a can perform the above-described notification control to obtain the above-described effects.

From the above, the motion control system is configured to control the reporting to the terminal 300 by the moving object detection unit 10 (especially the behavior detection unit 27) and the management server 100a, and the care support system 1 It can be said that the configuration includes an information control system.

[Specific Example 2]
FIG. 12 is a flow chart showing the flow of processing by another notification control in the care support system 1 of the present embodiment. In this specific example, the notification control step of specific example 1 includes an action area determination step (S2). Hereinafter, points different from the specific example 1 will be described.

In S2, the notification control unit 512 determines the movement stop area in which the cared person stops moving in the living room 101 and performs life activities based on the layout information stored in the layout information storage unit 501b. It is determined whether the current position of the action or posture of the care receiver detected by the action detection unit 27 is in an area outside the movement stop area in the living room 101. Here, the above-mentioned daily activities performed by the cared person stopping the movement in the living room 101 include, for example, resting on the bed 102 and the futon (including sleeping, sleeping, and nap), a chair and a sofa, etc. Resting (including nap and resting), eating while sitting in a chair, watching television, reading, sewing, sewing operation, personal computer operation (including document entry, e-mail creation, web page viewing, etc.) can be assumed. Therefore, the movement stop area where the care receiver stops moving in the living room 101 and performs the above-mentioned daily activities corresponds to the installation area of at least one of the bed 102, the futon, the chair, and the sofa in the living room 101. There is. In addition, the above-mentioned chair generally refers to what a cared person can sit on, and this includes a fixed chair, a movable chair, and a toilet chair (a toilet bowl).

Then, the notification control unit 512 causes the position of the current action or posture of the care recipient to be in the area outside the movement stop area at S2, and the above-mentioned current time more than the allowable time at S3. If the duration is long, the terminal 300 is notified (S5). On the other hand, when the current position of the action or posture of the care receiver is in the movement stop area in S2, the notification control unit 512 stops the notification to the terminal 300 (S7).

If the current position of the action or posture of the care receiver is in an area outside the movement stop area in the living room 101, the care receiver is the floor surface 101b in the living room 101 if the current duration is longer than the allowable time. There is a high possibility of falling on top (see FIG. 10). In this case, since the terminal 300 is notified that it is a dangerous state, it is possible to avoid the situation where the care recipient is kept standing in the dangerous state. Further, since the notification is not issued until the duration exceeds the allowable time, the inconvenience caused by frequently receiving a notification at the terminal 300 is also reduced. On the other hand, when the care receiver is, for example, in the bed 102 (sleeping area) as the movement stop area, the care receiver stands up on the bed 102, but it is also assumed that it is in the sleep state. Therefore, it is possible to stop the notification to the terminal 300 when the care recipient is performing a living activity in the movement stop state (for example, while sleeping), and to prevent the occurrence of an erroneous notification.

In this specific example, when the cared person is in the movement stop area, the notification to the terminal 300 is suppressed on the condition that the current duration is longer than the allowable time. A certain condition may be added to suppress an alarm. For example, the alert may be suppressed when it is determined that the care recipient is in front of the wall (area suppression condition), or the alert may be suppressed when the care recipient has not moved from the position where the alert has already been issued. If it is within the fixed time from the previous report (preceding condition suppression condition), it may suppress the alarming condition (continuous suppression condition), or if it largely moves within the fixed time after falling. May be suppressed (the motion suppression condition).

[Specific Example 3]
FIG. 13 is a flow chart showing the flow of processing by still another notification control in the care support system 1 of the present embodiment. In this specific example, the notification control step of specific example 2 further includes a time zone determination step (S2-0).

In S2-0, the notification control unit 512 determines whether the current time is a bedtime zone in which the care receiver enters or sleeps. As a bedtime zone, for example, it is possible to assume 7:00 am of the next day from 21:00. Although this bedtime zone is preset as a time zone common to the care recipients of each living room 101, it may be set as a different time zone for each care recipient. The information on the bedtime period is set by, for example, the personal computer 100b, and stored in the storage unit 501 (for example, the main storage unit 501a).

Thereafter, the same process as in the second example is performed. That is, in S 2, the alert control unit 512 determines the movement stopping area (for example, the sleeping area) of the care recipient in the living room 101 based on the layout information, and the current action or posture of the care recipient It is determined whether or not the position is in an area outside the movement stop area in the living room 101. Then, when the current position of the action or posture of the care receiver is in an area outside the movement stop area, and the current duration is longer than the allowable time, the notification control unit 512 The alarm is issued to 300 (S5). On the other hand, when the current position of the action or posture of the care receiver is in the movement stop area, the notification control unit 512 stops the notification to the terminal 300 (S7).

As described above, in this specific example, the alert control unit 512 issues a notification to the terminal 300 when the current duration is longer than the allowable time in the bedtime zone of the care receiver set in advance. . As a case where a cared person acts in an area outside the movement stop area at a bedtime zone such as nighttime, for example, the cared person may go to the bathroom (move to go to the bathroom). In such a bedtime zone, when the behavior or posture of the care recipient is detected in the area outside the movement stop area, and the duration of the behavior or posture is longer than the allowable time, the care recipient is reciprocated to the toilet It is fully conceivable that a fall on the floor surface 101 b in the living room 101 is made on the way. Therefore, in this case, since the terminal 300 is notified, it is possible to reliably avoid the situation in which the cared person continues to be left in danger. Further, since the notification is not issued until the duration exceeds the allowable time, the inconvenience caused by frequently receiving a notification at the terminal 300 is also reduced. On the other hand, in the daytime, since the care receiver may lie down on the floor 101b and relax, the occurrence of false alarm can be prevented by stopping the notification to the terminal 300.

[Specific Example 4]
FIG. 14 is a flowchart showing the flow of processing by still another alert control in the care support system 1 of the present embodiment. In this specific example, the following steps S3-1 and S3-2 are added to the notification control step of specific example 1. Hereinafter, points different from the specific example 1 will be described. Here, it is assumed that the past action information stored in the action information storage unit 501b and the allowable time set in accordance therewith are the information shown in FIG.

In S3-1, the notification control unit 512 causes the position (for example, position C) at which the cared person's behavior or posture in the current living room 101 is to be included in the past action information (for example, position B). Determine if they are the same. Then, when the current position of the care receiver is different from the position included in the past action information, the notification control unit 512 determines the duration of the action or posture of the care recipient in the current living room 101 (for example, If the duration for position C) is longer than the allowable time for different positions (for example, the allowable time for position B), the terminal 300 is notified (S3-2, S5 ') and the above-mentioned allowable time or less In the case of, the notification to the terminal 300 is stopped (S3-2, S7 '). In S3-1, if the current position of the care recipient is the same as the position included in the past action information (for example, if both are the position B), the same process as in the first example is performed. It will be. That is, the process proceeds to S3 of FIG. 11, and the steps after S3 (including S5 and S7) are performed.

As described above, in the present specific example, the notification control unit 512 determines that the position where the cared person's behavior or posture in the current living room 101 is different from the position included in the past behavior information, and The terminal 300 is notified when the duration of the action or posture of the care recipient in the present living room 101 is longer than the allowable time defined for different positions (S3-1, S3-2, S5 ' ).

For example, the duration of the current action at a position (position C in the above example) where the cared person does not normally (previously) act in the living room 101 is at the position (position B in the above example) If the time is longer than the permitted time, it is presumed that the cared person falls at a position where he does not usually act and is in a dangerous state. In this case, since the terminal 300 is notified, it is possible to reliably avoid the situation in which the care recipient is left in danger. Moreover, since it is surmised that the cared person is not in a dangerous state when the above-mentioned continuation time is equal to or less than the above-mentioned allowable time, in this case, false notification to the terminal 300 is stopped. It is possible to prevent the occurrence and to reduce the burden of notification.

By the way, in each of the above specific examples, an example has been described in which the entire care support system 1 including the moving object detection unit 10 and the management server 100a constitutes a notification control system in which the notification to the terminal 300 is controlled. It is also possible to configure the alarm control system with the moving object detection unit 10 alone. For example, the main control unit 41 and the storage unit 24 of the moving body detection unit 10 have the same functions as the above-described notification control unit 512 and storage unit 501 (action information storage unit 501b, layout information storage unit 501c) of the management server 100a. It may be Then, the main control unit 41 may control the notification to the terminal 300 via the management server 100a or directly. In this case, the main control unit 41 is a terminal 300 possessed by the staff T based on the past behavior information and the information detected by the behavior detection unit 27 and the timekeeping unit 45 about the current behavior or posture of the care receiver. The alarm control unit is configured to control the alarming of the alarm. Therefore, the moving object detection unit 10 as the alarm control system includes the above-described action detection unit 27 (including the optical detection unit 23 and the image recognition unit 25), the clock unit 45, the storage unit 24, and the alarm control unit. And the main control unit 41 is configured to execute the terminal when the duration of the action or posture of the care recipient in the current living room 101 is longer than the allowable time stored in the storage unit 24. It can be said that the configuration is to report on 300.

[Others]
The alert control system, the detection unit, the care support system, and the alert control method of the present embodiment described above can be expressed as follows.

That is, the alert control system described above detects the action or posture of the subject in the room and the action detecting unit for detecting the action or the position taking the posture, and the duration time of the action or the posture The timekeeping unit for counting time, the behavior or posture of the subject detected by the behavior detection unit during a predetermined time period in the past, the position where the behavior or posture is taken, and the behavior or time measured by the timekeeping unit An action information storage unit that stores the duration of the posture as past action information of the subject, and stores an allowance time set according to the action information, and information stored in the action information storage unit And a terminal possessed by the staff based on information detected by the behavior detection unit and the timing unit regarding the current behavior or posture of the target person. And a notification control unit for controlling a notification of the notification, wherein the notification control unit is configured to, when the duration of the action or posture of the subject in the current room is longer than the allowable time, The terminal is notified.

The above notification control system further includes a layout information storage unit for storing layout information of the room, and the notification control unit stops the movement of the target person in the room based on the layout information. To determine the movement stop area in which living activities are to be performed, and the position of the current action or posture of the subject detected by the action detection unit is in an area outside the movement stop area in the living room The terminal may be notified if the position of the current action or posture of the subject is in the area and the current duration is longer than the allowable time. .

In the above-described alert control system, the alert control unit determines that the current duration is longer than the allowable time in a bedtime zone preset as a time zone in which the subject enters or sleeps. , The terminal may be notified.

In the above-described alert control system, the alert control unit is configured to determine whether the target person's action or posture in the living room is at the same position as the position of the target person in the current living room. The terminal may be notified when the duration of the action or posture of the subject is long.

In the above-described alert control system, the alert control unit determines that the current position at which the subject takes action or posture in the living room is different from and different from the position included in the past action information. The terminal may be notified when the duration of the action or posture of the subject in the current room is longer than the allowable time defined for the position.

In the above notification control system, the action detection unit performs an image recognition process on an image obtained by capturing an image by capturing an image of the living room, and the image obtained by the image capturing unit. You may include the image recognition part which detects a subject's action or attitude | position, and the said position in the said indoor room.

In the above-described alert control method, in the alert control step, the target person stops the movement in the living room based on the layout information in the living room to determine the movement stop area in which the living activity is performed. It is determined whether the position of the current action or posture of the target person detected in the action detection step is in an area outside the movement stop area in the living room, and the current action of the target person Alternatively, the terminal may be notified when the position of the posture is in the area and the current duration is longer than the allowable time.

In the above-described alert control method, in the alert control step, the current duration is longer than the allowable time in a bedtime zone preset as a time zone in which the subject enters or sleeps. , The terminal may be notified.

In the above-described alert control method, in the alert control step, in the current room, the allowable time defined for the same position as the position of the action or posture of the target person in the current room is determined. The terminal may be notified when the duration of the action or posture of the subject is long.

In the above-described alert control method, in the alert control step, the current position at which the target person's behavior or posture in the living room is different from and different from the position included in the past activity information The terminal may be notified when the duration of the action or posture of the subject in the current room is longer than the allowable time defined for the position.

The embodiment of the present invention has been described above, but the scope of the present invention is not limited to this, and various modifications can be made without departing from the scope of the invention. For example, it is possible to appropriately combine or replace the control and processing shown in each of the first to fourth embodiments.

The present invention can be used, for example, in a care support system that supports the daily life of a subject.

1 Care support system (reporting control system)
10 Motion detection unit (detection unit, alarm control system)
23 Optical detection unit (action detection unit, imaging unit)
24 storage unit (action information storage unit, layout information storage unit)
25 Image recognition unit (action detection unit)
27 behavior detection unit 41 main control unit (reporting control unit)
45 Timekeeping Unit 100a Management Server 101 Room 300 Terminal 501b Behavior Information Storage Unit 501c Layout Information Storage Unit 512 Notification Control Unit T Staff

Claims

An action detection unit that detects an action or posture of a target person in a room and a position at which the action or the posture is taken;
A timing unit that counts the duration of the action or the posture;
The behavior or posture of the subject detected by the behavior detection unit, the position at which the behavior or posture is taken, and the duration of the behavior or posture clocked by the timing unit during a predetermined period in the past An action information storage unit that stores information as past action information of the target person and stores an allowable time set according to the action information;
Based on the information stored in the behavior information storage unit and the information detected by the behavior detection unit and the timekeeping unit about the current behavior or posture of the target person, a warning is issued to a terminal owned by the staff And an alert control unit that controls the
The alert control system, wherein the alert control unit issues an alert to the terminal when the duration of the action or posture of the subject in the current room is longer than the allowable time.
It further comprises a layout information storage unit for storing layout information in the room,
The alert control unit determines, based on the layout information, a movement stop area in which the target person stops moving in the living room and performs life activities, and the current detection detected by the action detection unit. It is determined whether the position of the subject's action or posture is in an area outside the movement stopping area in the room, and the current position of the subject's action or posture is in the area, and The alert control system according to claim 1, wherein the terminal is alerted when the current duration is longer than the allowable time.
The alert control unit issues a notification to the terminal when the current duration is longer than the allowable time in a bedtime zone preset as a time zone in which the subject enters or sleeps. The alert control system according to claim 2.
The alert control unit is configured to perform the action or the posture of the subject in the current room than the allowable time defined for the same position as the position of the action or the posture of the subject in the current room. The alert control system according to any one of claims 1 to 3, wherein the terminal is alerted when the duration of the signal is long.
The alert control unit determines that the current position at which the subject takes an action or posture in the living room is different from the position included in the action information in the past, and the allowable time defined for a different position. The alert control system according to any one of claims 1 to 3, wherein the terminal is alerted when the duration of the action or posture of the subject in the current room is longer than the current time.
The behavior detection unit
An imaging unit configured to capture an image by capturing the room;
The image recognition unit includes an image recognition unit that detects an action or posture of the subject and the position in the living room by performing an image recognition process on the image acquired by the imaging unit. The alert control system according to any one of 5.
A detection unit installed in the room;
A detection unit comprising the alert control system according to any one of claims 1 to 6.
A care support system comprising the alert control system according to any one of claims 1 to 6, comprising:
A detection unit installed in the room, and a management server that manages information output from the detection unit,
The detection unit includes the behavior detection unit and the timing unit;
The care support system, wherein the management server includes the behavior information storage unit and the notification control unit.
An action detection step of detecting the action or posture of the subject in the current living room, the position where the action or the posture is taken, and the duration of the action or the posture;
The past action information including the action or posture of the subject in the living room, the position to take the action or the posture, the duration of the action or the posture, and the current An alerting control step of controlling alerting of a terminal owned by the staff based on information detected in the action detecting step about the action or posture of the target person,
In the notification control step, the terminal is notified when the duration of the action or posture of the target person in the current room is longer than the allowable time set according to the action information in the past. To control the alert control method.
In the alarm control step, a movement stop area in which the target person stops moving in the living room to perform a daily activity is determined based on layout information in the living room, and is detected in the action detection process. It is determined whether the current position of the subject's behavior or posture is in an area outside the movement stop area in the living room, and the current position of the subject's behavior or posture is in the area The alert control method according to claim 9, wherein the terminal is alerted when it is present and the current duration is longer than the allowable time.
In the alarm control step, the terminal is notified when the current duration is longer than the allowable time in a bedtime zone preset as a time zone in which the subject enters or sleeps. The alerting | reporting control method of Claim 10.
In the alarm control step, the action or posture of the subject in the current room than the allowable time defined for the same position as the position of the action or posture of the subject in the current room. The alerting control method according to any one of claims 9 to 11, wherein the terminal is alerted when the duration of time is long.
In the alarm control step, the allowable time at which the current position at which the subject takes action or posture in the living room is different from the position included in the action information in the past and defined for a different position The alert control method according to any one of claims 9 to 11, wherein the terminal is alerted when the duration of the action or posture of the subject in the current room is longer than the current time.