WO2017026218A1

WO2017026218A1 - Monitored person monitoring system, monitored person monitoring device, and monitored person monitoring method

Info

Publication number: WO2017026218A1
Application number: PCT/JP2016/070594
Authority: WO
Inventors: 泰啓本多; 岸本　卓也; 新　勇一
Original assignee: コニカミノルタ株式会社
Priority date: 2015-08-07
Filing date: 2016-07-12
Publication date: 2017-02-16
Also published as: JP6784213B2; JP6984712B2; JP2021012744A; JP6123971B1; JPWO2017026218A1; JP2017126372A

Abstract

A monitored person monitoring device, with one monitored person in a predetermined area being the subject, transmits determination result information indicating a determination result upon determining that the monitored person has performed a predetermined action in the area. A display device receives the determination result information through a server and displays the determination result indicated by the determination result information. A number-of-people determination unit determines the number of people in the area. When it has been determined that the number of people is two or more, a prevention control unit performs a control for preventing the determination result information from reaching the display device, and if it is determined that the number of people is one, the prevention control unit discontinues the control for prevention.

Description

Monitored person monitoring system, monitored person monitoring apparatus, and monitored person monitoring method

The present invention relates to a monitored person monitoring system that monitors, for example, a person who is a subject of nursing or care as a monitored person, and an apparatus and method applied to this system.

Japan (Japan) is an aging society, more specifically the ratio of population over 65 years old to the total population due to the improvement of living standards accompanying the post-war high economic growth, improvement of sanitary environment and improvement of medical standards, etc. It is a super-aging society with an aging rate exceeding 21%. In 2005, the total population was about 126.5 million, while the elderly population over the age of 65 was about 25.56 million. In 2020, the total population was about 124.11 million. There is also a prediction that the elderly population will be about 34.56 million. In such an aging society, nurses who need nursing or nursing care due to illness, injury, elderly age, etc., or those who need nursing care (such as those who require nursing care) are those who need nursing in a normal society that is not an aging society. It is expected that the increase will increase.

In addition, Japan is not only a super-aging society, but also a society with a declining birthrate with a total fertility rate of 1.43% in 2013, for example. For this reason, there is a problem such as geriatric care in which an elderly family (spouse, child, brother) cares for an elderly person who needs nursing or care.

Nursing and care recipients enter hospitals and other facilities such as welfare facilities for the elderly (Japanese elderly law short-term entrance facilities, nursing homes for the elderly and special nursing homes for the elderly, etc.) and receive nursing and nursing care. However, there are problems such as falling from the bed, falling down and getting injured while walking, and getting out of bed and hesitating. In any facility, nurses and caregivers regularly check their safety and condition by patroling, as it may cause even greater problems if left unattended for a long time. . However, the number of caregivers cannot keep up with the increasing number of care recipients, and the nursing care industry has a chronic shortage of workers.Furthermore, compared to daytime hours, semi-night shifts and night shift hours However, since the number of nurses, caregivers and the like is reduced, the work load per person is increased, and therefore the work load is required to be reduced. In addition, the above-mentioned problems of geriatric care are no exception in facilities, and elderly caregivers often take care of elderly care recipients, and there are also nursing homes where many of the caregivers working in the facility are elderly. To do. As you get older, your physical strength declines, and even if you're healthy, caregiving is a burden compared to younger caregivers, and movements and judgments are inevitably slow. In nursing care work, early judgment is important to prevent accidents such as falls and falls, and late judgment may be too late. In order to reduce such labor shortage and caregiver burden, there is a need for technology that complements care work. For this reason, in recent years, a monitored person monitoring device that monitors a monitored person to be monitored, such as a care recipient, has been researched and developed.

As one of such technologies, for example, there is an information processing apparatus that estimates the behavior of a person to be watched disclosed in Patent Document 1. The information processing apparatus obtains an optical flow in an acquired video and an image acquisition unit that acquires a video taken by a camera installed to watch over the behavior of a person to be watched on and near the bed When a moving object that moves based on the image processing unit and the obtained optical flow is detected, it is assumed that the detected moving object corresponds to the watching target person, and the position and moving direction of the detected moving object are A behavior estimation unit that estimates behavior on or near the bed of the person being watched over.

Also, for example, there is a watching system disclosed in Patent Document 2. In this system, the behavior of the monitored person is monitored using a wireless tag attached to the monitored person.

On the other hand, in terms of safety confirmation, a single person living alone is the same as the care recipient and the like and is a subject to be monitored.

As the monitored person monitoring system, when the monitored person monitoring device determines that the care recipient who is the monitored person has performed a predetermined action, information indicating the determination result is transmitted, and the display device is connected via the network. Consider a mode of receiving the information and displaying the determination result. If the monitored person monitoring device makes an erroneous determination and the determination result is displayed on the display device, it is the erroneous determination that is displayed, and thus the caregiver who is the monitor may make an incorrect response. For example, a caregiver needs to go to a room with a care recipient but does not go to the room, or conversely, a caregiver does not need to go to a room with a caregiver. Or something happens.

Even if the judgment result displayed on the display device is correct, if there is another person (for example, an attendant) near the care recipient, depending on the judgment result (for example, getting up), the room where the care recipient is located. There is no need for a caregiver to go.

JP 2014-174627 A JP 2014-166196 A

It is an object of the present invention to provide a system in which when a monitored person determines that he / she has performed a predetermined action, the determination result of an erroneous determination or a determination result that does not need to be handled by the monitoring person is notified to the monitoring person. To provide a monitored person management system, a monitored person management apparatus, and a monitored person monitoring method.

A monitored person monitoring system according to an aspect of the present invention includes a monitored person monitoring device, a server device, a display device, a number determination unit, and a blocking control unit. The monitored person monitoring device targets one monitored person in a predetermined area, and when determining that the monitored person performs a predetermined action in the area, determination result information indicating a determination result is provided. Send. The display device receives the determination result information via the server device, and displays the determination result indicated by the determination result information. The number-of-people determination unit determines the number of people in the area. The blocking control unit controls to prevent the determination result information from reaching the display device when the number of persons is determined to be two or more, and when the number of persons is determined to be 1, the blocking control unit performs the control. Release control.

The above and other objects, features and advantages of the present invention will become apparent from the following detailed description and the accompanying drawings.

It is a figure which shows the structure of the to-be-monitored person monitoring system in this embodiment. It is a functional block diagram of a detection unit (an example of a monitored person monitoring device). It is a schematic diagram which shows an example of the positional relationship of a detection unit and a to-be-monitored person in a room. It is explanatory drawing explaining operation | movement of a to-be-monitored person monitoring system when the to-be-monitored person in a room performs predetermined | prescribed action in the state in which the number of persons in the room was determined to be 1. It is explanatory drawing explaining operation | movement of a to-be-monitored person monitoring system, when the to-be-monitored person in a room performs predetermined | prescribed action in the state determined with the number of persons in a room being 2 or more. It is a flowchart explaining operation | movement of the detection unit (monitored person monitoring apparatus) which concerns on this embodiment. It is a functional block diagram of an action determination part.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In each figure, the structure which attached | subjected the same code | symbol shows that it is the same structure, The description is abbreviate | omitted about the content which has already demonstrated the structure.

FIG. 1 is a diagram showing a configuration of a monitored person monitoring system MS in the present embodiment. The monitored person monitoring system MS includes a plurality of detection units SU (SU-1 to SU-4), a management server unit SV, a fixed terminal unit SP, and one or a plurality of portable terminal units TA (TA-1, TA -2), and these are communicably connected via a network (network, communication line) NW such as a LAN (Local Area Network), a telephone network, and a data communication network, in a wired or wireless manner. The network NW may be provided with relays such as repeaters, bridges, routers, and cross-connects that relay communication signals. In the example shown in FIG. 1, the plurality of detection units SU-1 to SU-4, the management server unit SV, the fixed terminal unit SP, and the plurality of portable terminal units TA-1 and TA-2 are wireless including an access point AP. They are connected to each other via a network NW of a LAN (for example, a LAN according to the IEEE802.11 standard).

The monitored person monitoring system MS is arranged at an appropriate place according to the monitored person Ob. The monitored person (person to be watched) Ob is, for example, a person who needs nursing due to illness or injury, a person who needs care due to a decrease in physical ability, a single person living alone, or the like. In particular, from the viewpoint of enabling early detection and early action, the monitored person Ob may be a person who needs the detection when a predetermined inconvenient event such as an abnormal state occurs in the person. preferable. For this reason, the monitored person monitoring system MS is suitably arranged in a building such as a hospital, a welfare facility for the elderly, and a dwelling unit according to the type of the monitored person Ob. In the example shown in FIG. 1, the monitored person monitoring system MS is arranged in a building of a care facility that includes a plurality of rooms RM in which a plurality of monitored persons Ob live, a nurse station ST, and the like.

The detection unit SU has a communication function for communicating with other units SV, SP, and TA via the network NW. The detection unit SU captures an image of the monitored person Ob and generates an image. It is a device that determines whether or not an action has been taken. More specifically, the detection unit SU captures an image by imaging a monitored interface Ob, for example, a communication interface circuit (for example, a LAN card) for communicating with other units SV, SP, TA via a network. An image sensor to be generated, a data processing circuit for determining a state (situation) of the monitored person Ob based on an output (image) of the image sensor, a control circuit for controlling these, and a peripheral circuit thereof are configured and the determination result Is sent to the management server unit SV. The detection unit SU transmits the generated image (including still images and moving images) to other predetermined units SV, SP, and TA. Further, in the present embodiment, the detection unit SU is between the nurse call circuit that notifies the fixed call unit SP, the portable terminal unit TA, etc. of the nurse call, and the fixed terminal unit SP, the portable terminal unit TA, etc. A call circuit for performing a voice call is provided, and a nurse call and a voice call are possible. FIG. 1 shows four first to fourth detection units SU-1 to SU-4 as an example. The first detection unit SU-1 is one of the monitored persons Ob. The second detection unit SU-2 is disposed in the room RM-1 of Ob-1 and the second detection unit SU-2 is disposed in the room RM-2 of Mr. B Ob-2 who is one of the monitored persons Ob. -3 is arranged in a room RM-3 of Mr. C Ob-3, who is one of the monitored persons Ob, and the fourth detection unit SU-4 is Mr. D Ob-, who is one of the monitored persons Ob- 4 rooms RM-4.

The management server unit SV has a communication function for communicating with other units SU, TA, SP via the network NW, and receives determination result information about the monitored person Ob and an image of the monitored person Ob from the detection unit SU. This is a device that manages information (monitoring information) related to monitoring of the monitored person Ob. When the management server unit SV receives the determination result information related to the monitored person Ob and the image of the monitored person Ob from the detection unit SU, the management server unit SV receives a communication signal (monitoring information communication signal) containing the monitoring information related to monitoring the monitored person Ob. ) To the fixed terminal unit SP and the portable terminal unit TA. Further, the management server unit SV provides the client with data corresponding to the request of the client (in this embodiment, the fixed terminal unit SP and the portable terminal unit TA). Such a management server unit SV can be configured by, for example, a computer with a communication function.

The fixed terminal unit SP includes a communication function for communicating with other units SU, SV, TA via the network NW, a display function for displaying predetermined information, an input function for inputting predetermined instructions and data, and the like. The user interface of the monitored person monitoring system MS is input by inputting predetermined instructions or data to be given to the management server unit SV or the portable terminal unit TA, or displaying a determination result or an image obtained by the detection unit SU. It is a device that functions as (UI). Such a fixed terminal unit SP can be configured by, for example, a computer with a communication function.

The mobile terminal unit TA has a communication function for communicating with other units SV, SP, SU via the network NW, a display function for displaying predetermined information, an input function for inputting predetermined instructions and data, and a voice call. It has a calling function to perform, and inputs a predetermined instruction or data to be given to the management server unit SV or the detection unit SU, or displays the determination result or image obtained by the detection unit SU by a notification from the management server unit SV. It is a device that receives and displays the monitoring information related to the monitoring of the monitored person Ob.

Such a portable terminal unit TA can be configured by a portable communication terminal device such as a so-called tablet computer, a smartphone, or a mobile phone.

Next, the operation of this embodiment will be described. In the monitored person monitoring system MS having such a configuration, each unit SU, SV, SP, TA, when the power is turned on, executes necessary initialization of each part and starts its operation.

The monitored person monitoring system MS having the above configuration generally monitors each monitored person Ob by the following operation. The detection unit SU samples the output of the image sensor at a predetermined sampling period, determines the state (situation) of the monitored person Ob based on the sampled output of the image sensor, and as a result of the determination, the detection unit SU If it is determined that the person Ob has performed a predetermined action, the detection ID of the own device, the determination result information indicating the determination result determined as the state of the monitored person Ob, the determination time information indicating the determination time, and the determination The still image of the monitored person Ob used (if it is determined using a plurality of images, one of them (for example, the final image)) and the communication destination for downloading the moving image A communication signal (monitoring information communication signal) containing a communication address (for example, an IP address) is transmitted to the management server unit SV via the network NW. As the communication address of the own device, the communication address of the transmission source accommodated in the header may be used. The detection unit SU can determine the state (situation) of the monitored person Ob by a known technique. For example, the detection unit SU acquires an image of the monitored person Ob by the image sensor, detects a person area of the monitored person Ob from the acquired image, and detects the monitored person Ob from the aspect ratio of the detected person area. The posture of the person (for example, standing, sitting, lying down, etc.) is determined, the position of the detected person area is detected, and based on these determinations and the detected posture and position of the monitored person Ob, standing, sitting and falling Determine another.

When the management server unit SV receives the monitoring information communication signal from the detection unit SU via the network NW, the detection ID, determination result information, determination time information, still image data stored in the monitoring information communication signal, Communication addresses for obtaining moving images are stored (recorded) in association with each other. Then, the management server unit SV transmits this monitoring information communication signal to the fixed terminal unit SP and the portable terminal unit TA, for example, by broadcast or multicast broadcast communication. As a result, the state (situation) of the monitored person Ob is notified. When the communication address of the transmission source is also used as a communication address for obtaining a moving image, the communication address of the transmission source is the communication address of the management server unit SV by the transfer of the monitoring information communication signal by the management server unit SV. Therefore, the management server unit SV broadcasts the monitoring information communication signal after accommodating the communication address of the transmission source detection unit SU accommodated in the header in the payload of the monitoring information communication signal. In addition, the management server unit SV may transmit the monitoring information communication signal by unicasting to the mobile terminal unit TA previously associated with the detection unit SU that has transmitted the monitoring information communication signal.

When the fixed terminal unit SP and the portable terminal unit TA receive the monitoring information communication signal from the management server unit SV via the network NW, the monitoring information relating to the monitoring of the monitored person Ob contained in the monitoring information communication signal is received. indicate. Through such an operation, the monitored person monitoring system MS roughly detects each monitored person Ob by each detecting unit SU, management server unit SV, fixed terminal unit SP, and portable terminal unit TA, and each monitored person. Ob is being monitored.

FIG. 2 is a functional block diagram of the detection unit SU (an example of a monitored person monitoring device). FIG. 3 is a schematic diagram illustrating an example of a positional relationship between the detection unit SU and the monitored person Ob in the room RM. In FIG. 3, a bed BT is arranged in a substantially central region of the floor FL of the room RM, and a state where the monitored person Ob stands beside the bed BT is shown. The detection unit SU is attached to the center of the ceiling CE of the room RM. The detection unit SU includes an imaging unit 10, a number determination unit 11, a behavior determination unit 12, a communication unit 13, and a stop control unit 14.

The imaging unit 10 captures a predetermined area AR as a subject, and generates an image showing the subject. The imaging unit 10 may shoot a moving image having a predetermined area AR as a subject, or may shoot a still image having the predetermined area AR as a subject at predetermined intervals.

The imaging unit 10 is a digital camera such as a web camera, for example. The digital camera is, for example, an image forming optical system that forms an optical image of the area AR on a predetermined image forming surface, and a light receiving surface that coincides with the image forming surface. And an image processing unit that generates an image (image data) of the area AR by performing image processing on the output of the image sensor.

The detection unit SU including the imaging unit 10 is attached to the center of the ceiling CE of the room RM, and the blind spot of the imaging unit 10 is the space above the room RM, and the other space is the area AR. Thereby, the detection unit SU can monitor the behavior of the monitored person Ob in the room RM. In the present embodiment, monitoring the predetermined behavior of the monitored person Ob in the area AR means monitoring the predetermined behavior of the monitored person Ob in the room RM. The monitored person Ob may be monitored using the bed BT and its surroundings as the area AR instead of the entire room RM.

The imaging unit 10 may be a visible light camera, but may be an infrared camera combined with an infrared projector that projects near-infrared light so that it can be photographed even in the dark at night.

The action determination unit 12 targets one monitored person Ob in the room RM (in the area AR), and based on the image generated by the imaging unit 10, the monitored person Ob performs a predetermined action in the room RM. When it is determined whether or not a predetermined action has been performed, determination result information JI indicating a determination result is generated. The behavior determination unit 12 distinguishes and determines two or more types of behavior as the predetermined behavior. The behavior determination unit 12 can determine, for example, a state where the monitored person Ob is standing, a state where the monitored person Ob is sitting, and a state where the person falls over. Details of this determination will be described later.

The behavior determination unit 12 determines a predetermined behavior using the two-dimensional image captured by the imaging unit 10. However, the behavior determination unit 12 is not limited thereto, and a distance measuring sensor is arranged instead of the imaging unit 10, and the behavior determination unit 12 is used. May use a TOF (Time of Flight) method. It may be determined whether or not a predetermined action has been performed using a three-dimensional shape recognition technique. The light used for the distance measuring sensor is preferably infrared so that the monitored person Ob can recognize it.

The action determination unit 12 combining the above two techniques may be used.

The communication unit 13 transmits predetermined information when the behavior determination unit 12 determines that a predetermined behavior has been performed. The predetermined information is the determination result information JI created by the behavior determination unit 12 (for example, information indicating that the monitored person Ob falls), the determination time when the determination is made, the still image at this time, and the like is there. The transmission destination of the predetermined information is the management server unit SV (FIG. 1). The management server unit SV is an example of a server device, stores the received predetermined information, and broadcasts it to the fixed terminal unit SP and all the mobile terminal units TA. Thereby, the determination result, the determination time, the still image, and the like are displayed on the screen of the fixed terminal unit SP and the screens of all the mobile terminal units TA.

Hereinafter, for the convenience of explanation, the predetermined information is simply referred to as determination result information JI. The determination result information JI means predetermined information.

The number determination unit 11 determines the number of people in the room RM. Specifically, the number-of-persons determination unit 11 determines the area based on an image taken by the imaging unit 10, that is, an image used for determining whether or not the monitored person Ob performs a predetermined action in the action determination unit 12. The number of moving objects in the AR is detected, and the detected number is determined as the number of people in the room RM. This can be realized by, for example, a background difference method or an inter-frame difference method.

背景 A simple explanation of the determination of the number of people using the background subtraction method as an example. The number determination unit 11 stores a background image in advance. The background image is a still image obtained by photographing the area AR as a subject with the imaging unit 10 when there is no person in the area AR. The number determination unit 11 uses the motion image used by the behavior determination unit 12 for determining whether or not the monitored person Ob performs a predetermined behavior as an input image, compares the background image with the input image, and determines the number of moving objects. Is detected. The number determination unit 11 determines that the number of people in the area AR is 1 when the number of moving objects is 1, and the number of people in the area AR is 2 or more when the number of moving objects is 2 or more. Is determined. In the present embodiment, since the space excluding the space above the room RM is the area AR, the number of people in the area AR means the number of people in the room RM.

According to this embodiment, the number of persons in the room RM is determined using an image used to determine whether or not the monitored person Ob has performed a predetermined action in the room RM. Therefore, it is not necessary to provide a new sensor in order to determine the number of people in the room RM.

The number determination unit 11 is not limited to the above configuration, and may be, for example, the following configuration. In the vicinity of the entrance of the room RM, a first sensor capable of detecting a human body is arranged outside the room RM, and a second sensor capable of detecting a human body is arranged inside the room RM. When the first sensor detects the human body and then the second sensor detects the human body, it is determined that one person has entered the room RM, the second sensor detects the human body, and then the first sensor When the sensor detects a human body, it is determined that one person has left the room RM, and the number of persons in the room RM is determined based on these.

The stop control unit 14 is configured such that when the number determination unit 11 determines that the number of people in the room RM is 2 or more, the behavior determination unit 12 determines that the monitored person Ob has performed a predetermined action, and The communication unit 13 performs control to stop at least one of the functions of transmitting the determination result information JI. Alternatively, when the number determination unit 11 determines that the number of people in the room RM is 2 or more, the stop control unit 14 controls the communication unit 13 to transmit a command to stop simultaneous transmission to the management server unit SV. To control. When the number of persons in the room RM is determined to be two or more by the control of the stop control unit 14 as described above, the determination result is prevented from reaching the display device (mobile terminal unit TA, fixed terminal unit SP). it can. The stop control unit 14 functions as a blocking control unit (not shown). The stop control unit 14 and the prevention control unit will be described in detail later.

The number determination unit 11, the behavior determination unit 12, and the stop control unit 14 are hardware such as a CPU (Central Processing Unit), a RAM (Random Access Memory), and a ROM (Read Only Memory), a program executed by the CPU, and the like. Realized by software. The communication unit 13 is realized by an antenna, a communication control circuit, and the like.

The management server unit SV (FIG. 1) may have the functions of the number determination unit 11, the behavior determination unit 12, and the stop control unit 14. In this case, the monitored person monitoring apparatus is configured by the imaging unit 10 and the management server unit SV. The stop control unit 14 stops the function of the behavior determining unit 12 determining that the monitored person Ob has performed a predetermined behavior when the number determining unit 11 determines that the number of people in the room RM is 2 or more. Let

The monitored person monitoring system MS includes a blocking control unit (not shown). When it is determined that the number of people in the room RM is 2 or more, the blocking control unit controls to prevent the determination result information JI from reaching the mobile terminal unit TA and the fixed terminal unit SP and is in the room RM. When it is determined that the number of people is 1, the blocking control is released. The prevention control unit has a mode (mode 1 and mode 2) in which the stop control unit 14 is a block control unit and a mode (mode 3) in which the combination of the stop control unit 14 and the management server unit SV is a block control unit. is there.

The prevention control unit will be described in detail. FIG. 4 shows the operation of the monitored person monitoring system MS when the number of persons in the room RM determines that the number of persons in the room RM is 1, and the monitored person Ob in the room RM performs a predetermined action. It is explanatory drawing demonstrated. FIG. 5 shows the operation of the monitored person monitoring system MS when the number of persons in the room RM determines that the number of persons in the room RM is two or more and the monitored person Ob in the room RM performs a predetermined action. It is explanatory drawing explaining these. FIG. 5 shows the monitored person Ob and one person Ot other than the monitored person.

2 and 4, when the number determination unit 11 determines that the number of people in the room RM is 1, the blocking control unit cancels the blocking control. Therefore, the action determination unit 12 determines that the monitored person Ob has performed a predetermined action, generates determination result information JI indicating the action, and the communication unit 13 transmits the determination result information JI to the management server unit SV (FIG. To 1). As described above, the management server unit SV simultaneously transmits the received determination result information JI to the fixed terminal unit SP and all the mobile terminal units TA. Thereby, the determination result is displayed on the screen of the fixed terminal unit SP and the screens of all the mobile terminal units TA.

2 and 5, when the number determination unit 11 determines that the number of people in the room RM is two or more, the blocking control unit performs the blocking control. As described above, the blocking control unit has three modes.

Mode 1 is a mode in which the stop control unit 14 is a blocking control unit. That is, the prevention control unit is included in the detection unit SU. When it is determined that the number of people in the room RM is 2 or more, the stop control unit 14 indicates that the monitored person Ob has performed a predetermined action among the functions of the detection unit SU (monitored person monitoring device). Control to stop the judgment function. That is, the detection unit SU stops the behavior determination unit 12. According to the aspect 1, since it is not determined whether or not the monitored person Ob performs a predetermined action, the determination result information JI is not created. As a result, it is possible to prevent the determination result information JI from reaching the mobile terminal unit TA and the fixed terminal unit SP. According to the aspect 1, when it is determined that the number of people in the room RM is 2 or more, the determination result information JI is not sent to the network NW, so that traffic on the network NW can be reduced.

Aspect 2 is an aspect in which the stop control unit 14 is a blocking control unit, as in the first aspect. When it is determined that the number of people in the room RM is 2 or more, the stop control unit 14 performs control to stop the function of transmitting the determination result information JI among the functions of the detection unit SU. That is, the detection unit SU stops the communication unit 13. According to the aspect 2, even if the action determination unit 12 determines that the monitored person Ob performs a predetermined action and creates the determination result information JI, the communication unit 13 does not transmit the determination result information JI. The result information JI can be prevented from reaching the mobile terminal unit TA and the fixed terminal unit SP. According to aspect 2, as in aspect 1, when it is determined that the number of people in the room RM is 2 or more, the determination result information JI is not sent to the network NW, so the traffic of the network NW can be reduced.

Mode 3 is a mode in which the combination of the stop control unit 14 and the management server unit SV is a blocking control unit. In the detection unit SU, when it is determined that the number of people in the room RM is two or more, the stop control unit 14 controls the communication unit 13 and transmits a command to stop the simultaneous transmission to the management server unit SV. When the management server unit SV receives the instruction, the management server unit SV stores the determination result information JI even if it receives the determination result information JI. However, the determination result information JI is stored in the mobile terminal unit TA and the fixed terminal unit SP. Do not send all at once. According to the aspect 3, even if the detection unit SU determines that the monitored person Ob has performed a predetermined action and transmits the determination result information JI to the management server unit SV, the management server unit SV is not connected to the portable terminal unit TA. Since the determination result information JI is not transmitted to the fixed terminal unit SP, it is possible to prevent the determination result information JI from reaching the mobile terminal unit TA and the fixed terminal unit SP.

In any of Aspect 1 to Aspect 3, in the state where the blocking control unit is controlling to prevent determination result information JI from reaching mobile terminal unit TA and fixed terminal unit SP, When it is determined that the number of persons in the RM is 1, the blocking control unit cancels the blocking control. In addition, when the number of persons in the room RM is determined to be 2 or more by the number determination unit 11 in a state in which the blocking control unit has released the blocking control, the blocking control unit performs the blocking control. do. Therefore, according to the present embodiment, it is possible to automatically switch between blocking control and cancellation thereof.

When the blocking control unit performs the blocking control, the management server unit SV stores the blocking control as a log and stores the blocking control information as a fixed terminal. Send to unit SP. On the screen of the fixed terminal unit SP, it is displayed that the blocking control is being performed.

Among predetermined actions, a predetermined action is an exception, and even if the number of people in the room RM is two or more, the determination result information JI reaches the portable terminal unit TA and the fixed terminal unit SP. Also good. That is, for example, when the detection unit SU determines that the falling falls are predetermined actions among getting up, getting out of the floor, and falling, and the monitoring unit Ob determines that the monitored person Ob falls, the prevention control unit 11 cancels the control to block regardless of whether the number of persons is 1 or 2 or more.

Of the predetermined actions of the monitored person Ob, the fall and fall are serious. Even if there are two or more persons in the room RM and there is a possibility of an erroneous determination, the determination result indicating a fall and fall is made to reach the mobile terminal unit TA and the fixed terminal unit SP as an exception.

In the present embodiment, the portable terminal unit TA and the fixed terminal unit SP are described as display devices, but the management server unit SV can also be used as a display device.

1 includes a plurality of detection units SU described with reference to FIGS. 2 to 5, and the plurality of detection units SU are arranged in each of a plurality of rooms RM. The monitored person monitoring system MS is a system that assigns one room RM to one monitored person Ob and monitors a plurality of monitored persons Ob. The number-of-people determination unit 11 determines the number of people for each of the plurality of rooms RM. In the blocking control unit, the determination result information JI from the detection unit SU arranged in the room RM determined by the number determination unit 11 that the number of persons is 2 or more reaches the portable terminal unit TA and the fixed terminal unit. Control to prevent

The operation of the detection unit SU according to the present embodiment will be described by taking the aspect 2 as an example. FIG. 6 is a flowchart for explaining the operation. 2, 3, and 6, imaging unit 10 captures a moving image with an area AR of room RM as a subject. The number-of-persons determination unit 11 acquires data of moving images taken by the imaging unit 10 before a predetermined period from the current time (for example, 1 minute before the current time) (S11).

The number determination unit 11 determines the number of people in the room RM using the moving image data obtained in S11 (S12).

When the number determination unit 11 determines that the number of people in the room RM is 2 or more (No in S13), the detection unit SU invalidates the notification flag (S14). Thereby, even if the action determination part 12 produces | generates the determination result information JI, the communication part 13 does not transmit the determination result information JI to management server unit SV.

When the number determination unit 11 determines that the number of people in the room RM is one (Yes in S13), the detection unit SU enables the notification flag (S15). Thereby, the communication part 13 transmits the determination result information JI to the management server unit SV, when the action determination part 12 produces | generates the determination result information JI.

The behavior determination unit 12 determines whether or not the monitored person Ob has performed a predetermined behavior based on the moving image obtained in S11 (S16).

When the action determination unit 12 determines that the monitored person Ob is not performing the predetermined action (No in S16), the process returns to S11.

When the behavior determination unit 12 determines that the monitored person Ob has performed a predetermined behavior (Yes in S16), the behavior determination unit 12 generates determination result information JI indicating the determination result. Then, the behavior determination unit 12 determines whether or not the alert flag is valid (S17). At S14, the behavior determination unit 12 determines that the alert flag is invalid (No at S17). The communication unit 13 does not transmit the determination result information JI generated by the behavior determination unit 12 to the management server unit SV. Then, the process returns to S11.

In S15, the action determination unit 12 determines that the notification flag is valid (Yes in S17). The communication unit 13 transmits the determination result information JI generated by the behavior determination unit 12 to the management server unit SV (S18). Then, the process returns to S11.

The management server unit SV shown in FIG. 1 receives the transmitted determination result information JI and transmits the determination result information JI simultaneously to the fixed terminal unit SP and all the mobile terminal units TA. Thereby, the determination result is displayed on the screens of the fixed terminal unit SP and all the mobile terminal units TA.

The monitored person monitoring system MS executes the processes of S11 to S18 described above for each room RM in FIG.

As described in aspect 2, in the case of aspect 1, the detection unit SU omits the processes of S14, S15, and S17. When the detection unit SU determines that the number of people in the room RM is 2 or more, the detection unit SU returns to S11.

In the case of aspect 3, the detection unit SU omits the processes of S14, S15, and S17. When the detection unit SU determines that the number of people in the room RM is 2 or more, the detection unit SU proceeds to S16 and transmits a command to stop the simultaneous transmission to the management server unit SV. As described above, when the management server unit SV receives the command, the management server unit SV does not broadcast the determination result information JI to the fixed terminal unit SP and all the mobile terminal units TA even if it receives the determination result information JI. .

The main effect of this embodiment will be described. Referring to FIG. 1, in the case of a system that monitors whether one monitored person Ob (for example, a care recipient) has performed a predetermined action (for example, getting up, getting out of bed, falling down), one monitored person is monitored. If there are two or more persons in the room RM (an example of the area AR) in which the person Ob is present, there is a possibility that an erroneous determination may be made in determining whether one monitored person Ob has performed a predetermined action. In particular, when an image is used for determining whether or not one monitored person Ob has performed a predetermined action, an erroneous determination is likely to occur if two or more people are included in the image. Further, if there are two or more persons in the room RM, it means that a person other than the monitored person (for example, a caregiver or an attendant) is near the monitored person Ob, and the display device (mobile terminal unit TA, fixed) A monitor (for example, a caregiver) who sees the determination result displayed on the terminal unit SP does not need to go to the room RM where the monitored person Ob is present.

When a person other than the monitored person is in the room RM in order to prevent the monitoring result from being notified to the monitoring person of the erroneous determination result or the determination result that the monitoring person does not need to deal with, the person switches the detection unit SU. Is turned off manually so that the detection unit SU is not operated, and when the person is not in the room RM, the person can manually turn on the switch of the detection unit SU to operate the detection unit SU.

However, a person other than the person to be monitored may forget to switch the detection unit SU from off to on when leaving the room RM. Although the detection unit SU needs to resume monitoring whether or not the monitored person Ob has performed a predetermined action, the detection unit SU cannot resume. In order to prevent this, when a person other than the person to be monitored turns off the detection unit SU, it is conceivable that the detection unit SU is automatically turned on after a lapse of a predetermined time using a timer. However, when the detection unit SU is automatically turned on after a predetermined time has elapsed, if there is a person other than the person being monitored in the room RM, the detection unit SU may possibly make a determination error.

From the above viewpoint, in the monitored person monitoring system MS according to the present embodiment, when there are two or more persons in the room RM for monitoring the behavior of the monitored person Ob, the monitored person Ob is excluded from the monitoring target. That is, in the room RM in which the detection unit SU determines whether one monitored person Ob has performed a predetermined action, when the number of persons determination unit 11 determines that the number of persons is 2 or more, (Shown) controls to prevent the determination result from reaching the display device (fixed terminal unit SP, portable terminal unit TA). Therefore, according to the monitored person monitoring system MS according to the present embodiment, when it is determined that the monitored person Ob performs a predetermined action, the determination result of the erroneous determination in the system that notifies the monitoring result of the determination result. It is possible to prevent the monitoring result from being notified to the monitoring result that is unnecessary for the monitoring person.

Further, according to the present embodiment, among the plurality of rooms RM shown in FIG. 1, the room RM determined by the number determination unit 11 as having two or more persons is excluded from the monitoring target. Therefore, when there are a plurality of monitored persons Ob, the number of monitored persons Ob that need to be monitored can be reduced.

With reference to FIG. 1, the present embodiment has been described with an example in which the detection unit SU, the management server unit SV, the fixed terminal unit SP, and the mobile terminal unit TA are connected by the same network NW. It is not limited. For example, the detection unit SU and the management server unit SV are connected via a first network, and the management server unit SV, the fixed terminal unit SP, and the portable terminal unit TA are connected via a second network different from the first network. May be.

Next, the determination of whether or not the monitored person Ob has performed a predetermined action will be described in detail with reference to FIG. 3 and FIG. The predetermined action will be described with the monitored person Ob standing, sitting, and falling, but is not limited thereto, and may be, for example, the monitored person Ob getting up, getting out of bed, or falling. FIG. 7 is a functional block diagram of the behavior determination unit 12. The behavior determination unit 12 includes a control unit 21, a head extraction unit 22, a posture determination unit 23, and a final determination unit 24. The behavior determination unit 12 determines whether or not the monitored person Ob has performed a predetermined action by detecting the posture of the monitored person Ob.

The control part 21 is for controlling each part of the action determination part 12 according to the function of each said part, respectively.

The head extraction unit 22 extracts a head (an area of an image in which an image of the head in the image, a head image) is extracted from the image of the area AR acquired by the imaging unit 10. A known image processing technique is used to extract the head. For example, it is assumed that the shape of the head is an elliptical shape, and the image of the area AR is subjected to a so-called generalized Hough transform, thereby extracting the elliptical shape in the image of the area AR, that is, the head. Such an image processing technique is disclosed in, for example, the literature; “Makoto Murakami,“ Research on Feature Representation and Region Extraction in Human Head Recognition ”, March 2003, Waseda University. From the image of the area AR, by template matching using a head shape such as an ellipse or circle of the outline shape or a head shape such as an approximate shape as a template prepared in advance, or by fitting a closed curve such as so-called Snake Also, from the viewpoint of improving the extraction accuracy, these methods are used in combination with color information such as skin color and black color, and movement information that determines whether a person is based on the presence or absence of movement. Alternatively, from the viewpoint of shortening the image processing time, the area where the image processing is performed is selected from the images in the area AR. The color information, the motion information, etc. may be used to limit the region to a highly probable region, and the head extraction unit 22 sends the extracted head (head image region) to the posture determination unit 23. Notice.

The posture determination unit 23 obtains a predetermined parameter in the head extracted by the head extraction unit 22, and determines whether or not the posture is a predetermined posture based on the obtained parameter. It is. More specifically, the posture determination unit 23 determines whether or not the predetermined posture is based on whether or not a predetermined parameter in the head extracted by the head extraction unit 22 is equal to or greater than a predetermined threshold th. Is determined. In the present embodiment, the posture determination unit 23 functionally includes a parameter calculation unit 231 and a temporary determination unit 232.

The parameter calculation unit 231 obtains a predetermined parameter in the head extracted by the head extraction unit 22. As the predetermined parameter, an appropriate parameter that can determine the posture of the monitoring target can be used. For example, when deciding whether or not a fall has occurred, the height of the head is used as the parameter because the height of the head is different between the fall and fall postures and other postures such as standing and sitting. it can. In addition, for example, when determining whether the monitoring target is in the standing position, whether it is in the sitting position, or whether it falls or falls, in this case also, each posture of standing position, sitting position, and falling falls Since the height of the part is different, the height of the head can be used as the parameter. Further, when the area AR is imaged from the upper side in the height direction with respect to the monitoring target, the size of the head on the image (the length of the short side in the region of the image showing the head) is the head. It becomes the size according to the height of the part. That is, at the same position on the plane, the higher the head height, the larger the head size appears on the image. Therefore, in each case described above, the size of the head can be used as the parameter. That is, it is possible to estimate the height of the head by using the size of the head as the parameter, and based on the estimated height of the head, the monitoring target such as standing, sitting and falling Can determine posture.

The temporary determination unit 232 determines whether or not the predetermined posture is based on whether or not the predetermined parameter in the head obtained by the parameter calculation unit 231 is equal to or greater than a predetermined threshold th. According to this, it is possible to easily determine whether or not the predetermined posture is merely by determining whether or not the parameter is equal to or greater than the threshold th. More specifically, for example, when the height of the head is used as the parameter and it is determined whether or not the vehicle falls, the head that can distinguish the posture of falling and other postures such as standing and sitting. The height of the part is set in advance as the predetermined threshold (first threshold, fall / fall determination head height threshold) th1. Alternatively, in the case where it is desired to detect only the posture that is completely tilted, the height of the bed BT may be set to the threshold value th1. In addition, for example, when using the height of the head as the parameter and determining whether the monitoring target is standing, whether it is sitting, whether it is a fall or fall, standing posture and sitting The height of the head that can be distinguished from the posture is preset as the predetermined threshold (2-1 threshold, standing position determination head height threshold) th21 to distinguish between the sitting posture and the falling and falling posture The height of the possible head is set in advance as the predetermined threshold value (second-threshold value 2-2, sitting position falling head height threshold value) th22. When the size of the head is used as the parameter, the thresholds th1, t21, and th22 are similarly set in advance by replacing the height of the head with the size of the head. The thresholds th1, th21, and th22 may be set as appropriate by preparing a plurality of samples in advance and performing statistical processing.

Here, when setting the thresholds th1 and th22 for determining the fall and fall, the height of the sitting position varies depending on the height of the standing position, that is, the height. Therefore, it is preferable that the thresholds th1 and th22 are set based on the height of the standing position. By setting the threshold values th1 and th22 so that the height is lower than the height of the sitting position based on the height (height) of the standing position, the behavior determination unit 12 can prevent the posture of the monitoring target from falling and falling. It becomes possible to determine whether or not there is. The thresholds th1 and th22 are preferably set based on the height of the sitting position. By setting the thresholds th1 and th22 so that the height is lower than the height of the sitting position based on the height of the sitting position, the behavior determination unit 12 can determine whether or not the posture of the monitoring target is falling over. Can be determined.

Then, the temporary determination unit 232 notifies the final determination unit 24 of the determination result as the determination result of the posture determination unit 23.

Here, in the present embodiment, the imaging unit 10 acquires a plurality of images of the area AR at different times, and the head extracting unit 22 acquires each of the plurality of images of the area AR acquired by the imaging unit 10. Then, the head is extracted from the image, and the posture determination unit 23 sets a predetermined parameter in the head extracted by the head extraction unit 22 for each of the plurality of images of the area AR acquired by the imaging unit 10. Based on this, it is determined whether or not the posture is predetermined.

The final determination unit 24 finally determines whether or not the predetermined posture is based on a plurality of determination results determined by the posture determination unit 23. For example, when the final determination unit 24 determines that the plurality of determination results determined by the posture determination unit 23 are the predetermined posture continuously for a predetermined number of times (that is, always for a predetermined fixed time), Finally, the predetermined posture is determined. When the final determination unit 24 finally determines that the posture is the predetermined posture, the final determination unit 24 notifies the control unit 21 accordingly. When the control unit 21 receives a notification from the final determination unit 24 that the posture of the monitoring target is finally the predetermined posture, the control unit 21 obtains information indicating that the posture of the monitoring target is finally the predetermined posture. Output.

(Summary of embodiment)
The monitored person monitoring system according to the first aspect of the present embodiment targets one monitored person in a predetermined area, and determines that the monitored person has performed a predetermined action in the area. In this case, the monitored person monitoring apparatus that transmits the determination result information indicating the determination result, the determination result information transmitted by the monitored person monitoring apparatus is received via a network, and the received determination result information is transmitted. And a display device that receives the determination result information transmitted by the server device via the network or another network different from the network, and displays the determination result indicated by the determination result information. Included in the number determination unit for determining the number of people in the area and the monitored person monitoring device or the server device, and when the number of people is determined to be 2 or more, Result information to the control that prevents reach the display device, when the number of the person is determined to be 1, and a blocking control unit for releasing the control for the blocking.

In the case of a system that monitors whether one monitored person (for example, a care recipient) has performed a predetermined action (for example, getting up, getting out of bed, falling down), for example, an area (for example, a room) ) If there are two or more persons, there is a possibility of erroneous determination in determining whether one monitored person has performed a predetermined action. In particular, when an image is used for determining whether or not one monitored person has performed a predetermined action, an erroneous determination is likely to occur if two or more people are included in the image. In addition, if there are two or more people in the area, it means that a person other than the monitored person (for example, a caregiver or an attendant) is near the monitored person, and the determination result displayed on the display device It is not necessary for a watcher (eg, a caregiver) who sees to go to an area where the watched person is present.

From the above viewpoint, in the monitored person monitoring system according to the first aspect of the present embodiment, when there are two or more persons in the area where the behavior of the monitored person is monitored, the monitored persons are excluded from the monitoring target. That is, in the area where the monitored person monitoring device determines whether one monitored person has performed a predetermined action, when the number of persons determination unit determines that the number of persons is two or more, the prevention control unit Control is performed to prevent the determination result information from reaching the display device. Therefore, according to the monitored person monitoring system according to the first aspect of the present embodiment, when it is determined that the monitored person has performed a predetermined action, an erroneous determination is made in the system that notifies the monitoring result of the determination result. It is possible to prevent the monitoring person from being notified of the determination result or the determination result that the monitoring person does not need to handle.

For example, there are the following three modes of the blocking control unit.

(Aspect 1) When the number of people in the area is determined to be 2 or more, the prevention control unit determines that the monitored person has performed a predetermined action among the functions of the monitored person monitoring device. Control to stop. This blocking control unit is included in the monitored person monitoring apparatus. According to aspect 1, since it is not determined whether or not the monitored person has performed a predetermined action, determination result information is not created. As a result, it is possible to prevent the determination result information from reaching the display device.

(Aspect 2) When the number of persons in the area is determined to be 2 or more, the prevention control unit performs control to stop the function of transmitting the determination result among the functions of the monitored person monitoring device. This blocking control unit is included in the monitored person monitoring apparatus. According to the aspect 2, since the monitored person monitoring device determines that the monitored person has performed the predetermined action and creates the determination result information, the determination result information is not transmitted to the display device. You can prevent it from reaching. According to Aspect 1 and Aspect 2, when the number of people in the area is determined to be 2 or more, the determination result information is not sent to the network, so that network traffic can be reduced.

(Aspect 3) When the number of people in the area is determined to be two or more, the prevention control unit performs control to stop the function of the server device transmitting the determination result information to the display device. This blocking control unit is included in the server device. According to the aspect 3, even if it is determined that the monitored person monitoring device has performed the predetermined action and the determination result information is transmitted to the server device, the server device does not transmit the determination result information to the display device. Can be prevented from reaching the display device.

In the above-described configuration, the monitored person monitoring apparatus captures an image of the area as a subject, generates an image indicating the subject, and based on the image generated by the imaging unit, The number of moving objects is detected, and the number determination unit that determines the detected number as the number of persons and whether the monitored person performs the predetermined action in the area based on the image A behavior determining unit that determines whether or not the behavior determining unit has performed the predetermined behavior, and a communication unit that transmits the determination result information.

In this configuration, the number of people in the area is determined using an image used to determine whether or not the monitored person has performed a predetermined action in the area. This can be realized by, for example, a background difference method or an inter-frame difference method. According to this configuration, it is not necessary to provide a new sensor in order to determine the number of people in the area.

In the above configuration, the monitored person monitoring device can distinguish and determine two or more kinds of actions as the predetermined action, and the prevention control unit is configured so that the monitored person monitoring device can detect the two or more kinds of actions. If it is determined that a predetermined action is taken, the number determination unit cancels the blocking control regardless of whether the number of persons is 1 or 2 or more. The monitored person monitoring device determines the fall of the monitored person as the predetermined action.

Of the prescribed behavior of the monitored person, a fall and fall are serious. Even if there are two or more people in the area and there is a possibility of erroneous determination, the determination result indicating the fall and fall is delivered to the display device as an exception.

In the above configuration, the monitored person monitoring system is a system that allocates one room as the area to one monitored person and monitors the plurality of monitored persons, and a plurality of the monitored persons. A supervisor monitoring device is disposed in each of the plurality of rooms, the number determination unit determines the number of persons for each of the plurality of rooms, and the prevention control unit includes the number determination unit, Control is performed to prevent the determination result information from the monitored person monitoring device arranged in the room where the number of persons is determined to be two or more from reaching the display device.

According to this configuration, out of a plurality of rooms, a room in which the number of persons is determined to be 2 or more by the number determination unit is excluded from monitoring targets. Therefore, when there are a plurality of monitored persons, the number of monitored persons that need to be monitored can be reduced.

The monitored person monitoring apparatus according to the second aspect of the present embodiment captures an image of a predetermined area as a subject and generates an image showing the subject, and one monitored person within the area A behavior determination unit that determines whether or not the monitored person has performed a predetermined behavior in the area based on the image generated by the imaging unit, and the behavior determination unit includes the predetermined If it is determined that the user has acted, the communication unit that transmits the determination result information indicating the determination result, and the number of moving objects in the area are detected based on the image, and the detected number is determined as the number of the person. And a function for determining that the monitored person has performed the predetermined action when the number of persons is determined to be 2 or more, and the communication part Stop at least one of the functions to send judgment result information And His, if the number of the person is determined to be 1, and a stop control unit for releasing said control to stop.

The monitored person monitoring apparatus according to the second aspect of the present embodiment has the same effects as the monitored person monitoring system according to the first aspect of the present embodiment.

The monitored person monitoring method according to the third aspect of the present embodiment targets one monitored person in a predetermined area, and determines that the monitored person has performed a predetermined action in the area. A step of transmitting determination result information indicating a determination result, a step of causing the display device to receive the determination result information via a network, and causing the display device to display the determination result indicated by the determination result information. In the monitored person monitoring method comprising: a first step of determining the number of people in the area; and in the first step, when the number of people is determined to be 2 or more, A second step of performing a control for preventing the determination result information from reaching the display device, and releasing the control to be blocked when the number of persons is determined to be one.

The monitored person monitoring method according to the third aspect of the present embodiment has the same operational effects as the monitored person monitoring system according to the first aspect of the present embodiment.

This application is based on Japanese Patent Application No. 2015-157418 filed on August 7, 2015, the contents of which are included in this application.

In order to express the present invention, the present invention has been properly and fully described through the embodiments with reference to the drawings. However, those skilled in the art can easily change and / or improve the above-described embodiments. It should be recognized that this is possible. Therefore, unless the modifications or improvements implemented by those skilled in the art are at a level that departs from the scope of the claims recited in the claims, the modifications or improvements are not covered by the claims. To be construed as inclusive.

According to the present invention, it is possible to provide a monitored person monitoring system, a monitored person monitoring apparatus, and a monitored person monitoring method.

Claims

A monitored person monitoring device that targets one monitored person in a predetermined area and transmits determination result information indicating a determination result when it is determined that the monitored person has performed a predetermined action in the area When,
A server device that receives the determination result information transmitted by the monitored person monitoring device via a network, and transmits the received determination result information;
A display device that receives the determination result information transmitted by the server device via the network or another network different from the network, and displays the determination result indicated by the determination result information;
A number determination unit for determining the number of people in the area;
When the number of persons included in the monitored person monitoring apparatus or the server apparatus is determined to be 2 or more, the determination result information is controlled to prevent reaching the display apparatus, and the number of persons is determined. A monitored person monitoring system comprising: a blocking control unit that cancels the blocking control when it is determined as 1.
The monitored person monitoring device comprises:
An imaging unit that shoots the area as a subject and generates an image showing the subject;
Based on the image generated by the imaging unit, the number of moving objects in the area is detected, and the number determination unit that determines the detected number as the number of people,
An action determination unit that determines whether the monitored person has performed the predetermined action in the area based on the image;
The monitored person monitoring system according to claim 1, further comprising: a communication unit that transmits the determination result information when the behavior determination unit determines that the predetermined behavior has been performed.
The monitored person monitoring device can distinguish and determine two or more kinds of actions as the predetermined action,
When it is determined that the monitored person monitoring device has performed a predetermined action among the two or more kinds of actions, the number-of-persons determination part is configured such that the number of persons is 1 or 2 or more. 3. The monitored person monitoring system according to claim 1 or 2, wherein, regardless of any determination, the blocking control is canceled.
The monitored person monitoring system according to claim 3, wherein the monitored person monitoring device determines that the fall of the monitored person is the predetermined action.
The monitored person monitoring system is a system for allocating one room as the area to one monitored person and monitoring a plurality of the monitored persons.
A plurality of monitored person monitoring devices are arranged in each of the plurality of rooms,
The number-of-persons determination unit determines the number of persons for each of the plurality of rooms,
The blocking control unit is configured to receive the determination result information from the monitored person monitoring device arranged in the room in which the number of persons is determined to be two or more by the number determination unit. The monitored person monitoring system according to any one of claims 1 to 4, wherein control for blocking is performed.
An imaging unit that shoots a predetermined area as a subject and generates an image showing the subject;
Action determination for determining whether or not the monitored person has performed a predetermined action in the area based on the image generated by the imaging unit, targeting one monitored person in the area And
A communication unit that transmits determination result information indicating a determination result when the behavior determination unit determines that the predetermined behavior has been performed;
A number determination unit that detects the number of moving objects in the area based on the image and determines the detected number as the number of persons;
A function of determining that the monitored person has performed the predetermined action when the number of persons is determined to be two or more, and a function of transmitting the determination result information by the communication unit; A monitored person monitoring device, comprising: a stop control unit that performs control to stop at least one and releases the control to stop when the number of persons is determined to be one.
When it is determined that one monitored person in a predetermined area is the target and the monitored person has performed a predetermined action in the area, transmitting determination result information indicating a determination result; and The determination result information is received via a display device, and the determination result indicated by the determination result information is displayed on the display device.
A first step of determining the number of people in the area;
In the first step, when the number of persons is determined to be 2 or more, the determination result information is controlled to prevent reaching the display device, and when the number of persons is determined to be 1, And a second step of releasing the blocking control.