JP2021012744A - Monitored person monitoring system, monitored person monitoring device and monitored person monitoring method - Google Patents

Abstract

To prevent a determination result of erroneous determination and a determination result which does not requires a monitoring person' response are notified to the monitoring person.SOLUTION: A monitored person monitoring device (a detection unit SU) targets one monitored person Ob being in a room RM, and transmits determination result information showing a determination result in the case of determining that the monitored person performs a prescribed action in the room RM. A portable terminal unit TA and a fixed terminal unit SP receive the determination result information via a network NW, and display the determination result. A person number determination part 11 determines the number of persons existing in the room RM. A stop control part 14 (a prevention control part) performs control for preventing the determination result information from reaching the portable terminal unit TA and the fixed terminal unit SP in a case that the number of persons is two or more, and cancels the control for prevention in a case of determining that the number of persons is one.SELECTED DRAWING: Figure 1

Description

The present invention relates to, for example, a monitored person monitoring system that monitors a person who is the target of nursing or long-term 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 the population aged 65 and over to the total population due to the improvement of living standards, sanitary environment and medical standards accompanying the postwar high economic growth. It is a super-aging society with an aging rate of over 21%. In 2005, the total population was about 127.65 million, while the number of elderly people aged 65 and over was about 25.56 million, while in 2020, the total population was about 124.11 million. The elderly population is estimated to be about 34.56 million. In such an aging society, the nursing-requiring persons and long-term care-requiring persons (nursing-requiring persons, etc.) who require nursing care or nursing care due to illness, injury, aging, etc. The increase is expected rather than the above.

In addition, Japan is not only a super-aging society, but also a society with a declining birthrate, for example, with a total fertility rate of 1.43% in 2013. Therefore, there is a problem of elderly care in which an elderly family member (spouse, child, sibling) cares for the elderly who need nursing or nursing care.

Nursing and long-term care recipients enter hospitals and facilities such as welfare facilities for the elderly (short-term admission facilities for the elderly, nursing homes for the elderly, special elderly nursing homes, etc. under Japanese law) and live while receiving their nursing and long-term care. However, there are problems such as falling out of the bed, falling down while walking and getting injured, and getting out of the bed and wandering around. If left unattended for a long time in either state, even greater problems may occur, so at the facility, nurses, caregivers, etc. regularly patrol to confirm their safety and condition. .. However, the number of caregivers cannot keep up with the increasing number of care recipients, and the nursing care industry has a problem of chronic labor shortage. Furthermore, compared to the day shift hours, the quasi-night shift and night shift hours Then, since the number of nurses, caregivers, etc. decreases, the work load per person increases, and therefore, the reduction of the work load is requested. In addition, the above-mentioned problem of elderly care is no exception in facilities, and elderly caregivers often take care of elderly care recipients, and there are also nursing care facilities where many of the caregivers working in the facility are elderly. To do. As the elderly grow older, their physical strength weakens, and even if they are healthy, it is a burden to care for them compared to young caregivers, and their movements and judgments are inevitably slowed down. In long-term care work, it is important to make an early decision to prevent accidents such as falls, and if the decision is late, it may be too late. In order to reduce such labor shortages and the burden on caregivers, there is a need for technology that complements long-term care work. For this reason, in recent years, a monitored person monitoring device for monitoring (monitoring) a person to be monitored, such as a person requiring long-term care, has been researched and developed.

As one of such techniques, for example, there is an information processing device disclosed in Patent Document 1 that estimates the behavior of a person to be watched over. This information processing device obtains an image acquisition unit that acquires a moving image taken by a camera installed to monitor the behavior of a person to be watched on or near the bed, and an optical flow in the acquired moving image. When a moving object is detected based on the image processing unit and the obtained optical flow, the position and moving direction of the detected moving object are determined on the assumption that the detected moving object corresponds to the monitoring target person. Based on this, a behavior estimation unit that estimates the behavior of the person to be watched over or near the bed is provided.

Further, for example, there is a monitoring system disclosed in Patent Document 2. In this system, the behavior of the monitored person is monitored by 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 person requiring long-term care, and is a person to be monitored.

As a monitored person monitoring system, when the monitored person monitoring device determines that the person requiring long-term care who is the monitored person has performed a predetermined action, information indicating the determination result is transmitted, and the display device transmits the information indicating the determination result via the network. , Consider a mode in which the information is received and the determination result is displayed. If the monitored person monitoring device makes an erroneous determination and the determination result is displayed on the display device, the display is an erroneous determination, and the caregiver who is the observer may take an erroneous 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 care recipient but goes to the room. 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 with the care recipient may be present. The caregiver does not have to go.

Japanese Unexamined Patent Publication No. 2014-174627 Japanese Unexamined Patent Publication No. 2014-166196

An object of the present invention is that, when it is determined that the monitored person has performed a predetermined action, in a system that notifies the observer of the determination result, the determination result of erroneous determination or the determination result that the observer does not need to deal with is the observer. It is to provide a monitored person management system, a monitored person management device, and a monitored person monitoring method that can prevent the notification to.

The monitored person monitoring system according to one 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 it is determined that the monitored person has performed a predetermined action in the area, the determined result information indicating the determination result is displayed. 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 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 the persons is determined to be 2 or more, and when the number of the persons is determined to be 1, the blocking control unit prevents the determination result information from reaching the display device. Release the control.

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

It is a figure which shows the structure of the 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 between a detection unit and a monitored person in a room. It is explanatory drawing explaining the operation of the monitored person monitoring system when the monitored person in a room performs a predetermined action in a state where the number of people in a room is determined to be 1. It is explanatory drawing explaining the operation of the monitored person monitoring system when the monitored person in a room performs a predetermined action in the state that the number of people in a room is determined to be 2 or more. It is a flowchart explaining the operation 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 configurations with the same reference numerals indicate that they are the same configuration, and the description of the configurations already described will be omitted.

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 more mobile terminal units TA (TA-1, TA). -2), which are connected by wire or wirelessly via a network (network, communication line) NW such as a LAN (Local Area Network), a telephone network, and a data communication network. The network NW may be provided with repeaters 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 mobile terminal units TA-1 and TA-2 are wireless including the access point AP. They are communicably connected to each other by 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 over) Ob is, for example, a person who needs nursing care due to illness or injury, a person who needs nursing care due to deterioration of physical ability, or a person living alone. In particular, from the viewpoint of enabling early detection and early response, the monitored person Ob may be a person who needs to detect a predetermined inconvenient event such as an abnormal state when the person occurs. preferable. Therefore, the monitored person monitoring system MS is suitably arranged in buildings such as hospitals, welfare facilities for the elderly, and dwelling units, depending on the type of monitored person Ob. In the example shown in FIG. 1, the monitored person monitoring system MS is arranged in a plurality of room RMs in which a plurality of monitored person Obs live, a building of a nursing care facility including a nurse station ST, and the like.

The detection unit SU has a communication function of communicating with other units SV, SP, and TA via the network NW, images the monitored person Ob, generates an image, and the monitored person Ob is determined from the generated image. It is a device that determines whether or not an action has been taken. More specifically, the detection unit SU captures, for example, a communication interface circuit (for example, a LAN card) for communicating with other units SV, SP, and TA via a network, and an image of the monitored person Ob. It is configured to include an image sensor to be generated, a data processing circuit for determining the state (status) of the monitored person Ob based on the output (image) of the image sensor, a control circuit for controlling these, and a peripheral circuit thereof, and the determination result. The determination result information indicating is transmitted to the management server unit SV. Further, the detection unit SU transmits the generated image (including a still image and a moving image) to other predetermined units SV, SP, and TA. Further, in the present embodiment, the detection unit SU is connected to a nurse call circuit that notifies a fixed terminal unit SP, a mobile terminal unit TA, etc. of a nurse call, and a fixed terminal unit SP, a mobile terminal unit TA, or the like. It is equipped with a call circuit for making voice calls, enabling nurse calls and voice calls. In FIG. 1, four first to fourth detection units SU-1 to SU-4 are shown as an example, and the first detection unit SU-1 is Mr. A who is one of the monitored persons Ob. The second detection unit SU-2 is arranged in the room RM-1 of Ob-1, and the second detection unit SU-2 is arranged in the room RM-2 of Mr. B Ob-2, who is one of the monitored persons Ob, and is arranged in the room RM-2 of the third detection unit SU. -3 is arranged in the 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. It is arranged in room RM-4 of 4.

The management server unit SV has a communication function for communicating with other units SU, TA, and SP via the network NW, and receives the determination result information regarding the monitored person Ob and the image of the monitored person Ob from the detection unit SU. It 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 regarding the monitored person Ob and the image of the monitored person Ob from the detection unit SU, the management server unit SV receives the communication signal (monitoring information communication signal) containing the monitoring information regarding the monitoring of the monitored person Ob. ) Is transmitted to the fixed terminal unit SP and the mobile terminal unit TA. Further, the management server unit SV provides the client with data according to the request of the client (fixed terminal unit SP, mobile terminal unit TA, etc. in the present embodiment). Such a management server unit SV can be configured by, for example, a computer having a communication function.

The fixed terminal unit SP has a communication function for communicating with other units SU, SV, and TA via a 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 by inputting predetermined instructions and data given to the management server unit SV and the mobile terminal unit TA, and displaying the judgment results and images obtained by the detection unit SU. A device that functions as a (UI). Such a fixed terminal unit SP can be configured by, for example, a computer having a communication function.

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

Such a mobile 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, when the power is turned on, each unit SU, SV, SP, and TA executes necessary initialization of each part and starts its operation.

Then, the monitored person monitoring system MS having the above configuration generally monitors each monitored person Ob by the following operations. The detection unit SU samples the output of the image sensor at a predetermined sampling cycle, determines the state (situation) of the monitored person Ob based on the sampled output of the image sensor, and as a result of this determination, is monitored. When it is determined that the person Ob has performed a predetermined action, the detection ID of the own machine, the judgment result information indicating the judgment result determined as the state of the monitored person Ob, the judgment time information indicating the judgment time, and the judgment time information at the time of the judgment The image data of the used still image of the monitored person Ob (one of them (for example, the final image) when determined using a plurality of images) and the moving image of the own machine as a communication destination for downloading. A communication signal (monitoring information communication signal) including a communication address (for example, an IP address) is transmitted to the management server unit SV via the network NW. The communication address of the own machine may also be the communication address of the source stored in the header. 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 person area of the monitored person Ob from the aspect ratio of the detected person area. (For example, standing, sitting, lying down, etc.) is determined, the position of the detected person area is detected, and the standing, sitting, and falling over are based on the determined and detected posture and position of the monitored person Ob. Judge the distinction.

When the management server unit SV receives the monitoring information communication signal from the detection unit SU via the network NW, the management server unit SV receives the detection ID, the determination result information, the determination time information, the still image image data, and the still image data accommodated in the monitoring information communication signal. Communication addresses for obtaining moving images are associated with each other and stored (recorded). Then, the management server unit SV transmits this monitoring information communication signal to the fixed terminal unit SP and the mobile terminal unit TA by, for example, 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 the communication address for obtaining the moving image, the communication address of the transmission source is the communication address of the management server unit SV due to the transfer of the monitoring information communication signal by the management server unit SV. Therefore, the management server unit SV accommodates the communication address of the source detection unit SU contained in the header in the payload of the monitoring information communication signal, and then broadcasts the monitoring information communication signal. Further, the management server unit SV may unicast the monitoring information communication signal to the mobile terminal unit TA previously associated with the detection unit SU that transmitted the monitoring information communication signal.

When the fixed terminal unit SP and the mobile terminal unit TA receive the monitoring information communication signal from the management server unit SV via the network NW, the fixed terminal unit SP and the mobile terminal unit TA receive the monitoring information regarding the monitoring of the monitored person Ob accommodated in the monitoring information communication signal. indicate. By such an operation, the monitored person monitoring system MS roughly detects each monitored person Ob by each detection unit SU, management server unit SV, fixed terminal unit SP, and mobile terminal unit TA, and each monitored person. Ob is monitoring.

FIG. 2 is a functional block diagram of the detection unit SU (an example of the monitored person monitoring device). FIG. 3 is a schematic view showing an example of the 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 in which 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, an action determination unit 12, a communication unit 13, and a stop control unit 14.

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

The imaging unit 10 is, for example, a digital camera such as a webcam. The digital camera is, for example, an imaging optical system that forms an optical image of the area AR on a predetermined imaging surface, and is arranged so that the light receiving surface is aligned with the imaging surface, and the optical image of the area AR is an electrical signal. It is provided with an image sensor that converts the image sensor into an image sensor, an image processing unit that generates an image (image data) of the area AR by image processing the output of the image sensor, and the like.

The detection unit SU including the imaging unit 10 is attached to the center of the ceiling CE of the room RM, the blind spot of the imaging unit 10 is the space above the room RM, and the other space is the area AR. As a result, 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 by 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 emits near-infrared light so that the image can be taken even in the dark such as at night.

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

The action determination unit 12 determines a predetermined action by using the two-dimensional image captured by the image pickup unit 10, but the action determination unit 12 is not limited to this, and a distance measuring sensor is arranged instead of the image pickup unit 10 to determine the action determination unit 12. May determine whether or not a predetermined action has been taken by using a three-dimensional shape recognition technique based on a TOF (Time of Flight) method. The light used for the distance measuring sensor is preferably infrared rays so that the monitored person Ob can recognize it.

The behavior determination unit 12 may be a combination of the above two techniques.

When the action determination unit 12 determines that the action determination unit 12 has performed a predetermined action, the communication unit 13 transmits predetermined information. The predetermined information is the judgment result information JI (for example, information indicating that the monitored person Ob has fallen over) created by the behavior judgment unit 12, the judgment time when the judgment is made, the still image at this time, and the like. is there. The 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 predetermined information received, and simultaneously transmits the received predetermined information to the fixed terminal unit SP and all the mobile terminal units TA. As a result, 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.

In the following, for convenience of explanation, the above-mentioned predetermined information is simply referred to as determination result information JI, and 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 people determination unit 11 is based on an image taken by the imaging unit 10, that is, an image used in the behavior determination unit 12 to determine whether or not the monitored person Ob has performed a predetermined action. The number of moving objects in the AR is detected, and the detected number is determined to be the number of people in the room RM. This can be achieved by, for example, the background subtraction method or the interframe subtraction method.

The determination of the number of people will be briefly described using the background subtraction method as an example. The number of people determination unit 11 stores the background image in advance. The background image is a still image obtained by taking an image of the area AR as a subject by the imaging unit 10 when there is no person in the area AR. The number of people determination unit 11 uses a moving image used by the action determination unit 12 to determine whether or not the monitored person Ob has performed a predetermined action as an input image, collates 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 when the number of moving objects is 2 or more, the number of people in the area AR is 2 or more. Is determined. In the present embodiment, the space excluding the space above the room RM is the area AR, so the number of people in the area AR means the number of people in the room RM.

According to the present embodiment, the number of people in the room RM is determined by using an image used for determining 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 to determine the number of people in the room RM.

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

The stop control unit 14 has a function of determining that the behavior determination unit 12 has performed a predetermined action when the number determination unit 11 determines that the number of people in the room RM is 2 or more. The communication unit 13 controls 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 and transmits a command to stop the simultaneous transmission to the management server unit SV. Control to make it. By the control of the stop control unit 14 as described above, when the number of people in the room RM is determined to be two or more, 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 stop control unit (not shown). The stop control unit 14 and the stop control unit will be described in detail later.

The number determination unit 11, the action determination unit 12, and the stop control unit 14 include hardware such as a CPU (Central Processing Unit), a RAM (Random Access Memory), and a ROM (Read Only Memory), and a program executed by the CPU. It is realized by the software of. 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 action determination unit 12, and the stop control unit 14. In this case, the image pickup unit 10 and the management server unit SV constitute a monitored person monitoring device. 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 stops the function of the action determination unit 12 to determine that the monitored person Ob has performed a predetermined action. Let me.

The monitored person monitoring system MS includes a blocking control unit (not shown). When the number of people in the room RM is determined to be 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 the number of people is determined to be 1, the above-mentioned blocking control is released. The stop control unit includes a mode in which the stop control unit 14 serves as a stop control unit (aspects 1 and 2) and a mode in which the combination of the stop control unit 14 and the management server unit SV serves as a stop control unit (aspect 3). is there.

The blocking control unit will be described in detail. FIG. 4 shows the operation of the monitored person monitoring system MS when the monitored person Ob in the room RM performs a predetermined action in a state where the number of people determination unit 11 determines that the number of people in the room RM is 1. It is explanatory drawing to explain. FIG. 5 shows the operation of the monitored person monitoring system MS when the monitored person Ob in the room RM performs a predetermined action in a state where the number of people determination unit 11 determines that the number of people in the room RM is 2 or more. It is explanatory drawing explaining. In FIG. 5, the monitored person Ob and one person Ot other than the monitored person Ot are shown.

With reference to FIGS. 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 releases the blocking control. Therefore, the action determination unit 12 determines that the monitored person Ob has performed a predetermined action, generates a determination result information JI indicating the action, and the communication unit 13 generates the determination result information JI in the management server unit SV (FIG. FIG. Send 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. As a result, the determination result is displayed on the screen of the fixed terminal unit SP and the screen of all the mobile terminal units TA.

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

Aspect 1 is a mode in which the stop control unit 14 serves as a blocking control unit. That is, the blocking control unit is included in the detection unit SU. When the number of people in the room RM is determined to be 2 or more, the stop control unit 14 determines that the monitored person Ob has performed a predetermined action among the functions of the detection unit SU (monitored person monitoring device). Controls to stop the judgment function. That is, the detection unit SU stops the action determination unit 12. According to the first aspect, since it is not determined whether or not the monitored person Ob has performed 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 first aspect, 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 the traffic of the network NW can be reduced.

Aspect 2 is a mode in which the stop control unit 14 serves as a blocking control unit, as in the mode 1. When the number of people in the room RM is determined to be 2 or more, the stop control unit 14 controls 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 second aspect, even if the action determination unit 12 determines that the monitored person Ob has performed a predetermined action and creates the determination result information JI, the communication unit 13 does not transmit the determination result information JI, so that the determination is made. The result information JI can be prevented from reaching the mobile terminal unit TA and the fixed terminal unit SP. According to the second aspect, as in the first aspect, when the number of people in the room RM is determined to be 2 or more, the determination result information JI is not sent to the network NW, so that the traffic of the network NW can be reduced.

Aspect 3 is a mode in which the combination of the stop control unit 14 and the management server unit SV serves as a blocking control unit. When the number of people in the room RM is determined to be two or more, the detection unit SU controls the communication unit 13 by the stop control unit 14 to transmit a command to stop the simultaneous transmission to the management server unit SV. When the management server unit SV receives the command and then receives the judgment result information JI, the management server unit SV stores the judgment result information JI, but the judgment 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 third aspect, 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 still uses the mobile terminal unit TA. And 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 the first to third aspects, the number of people determination unit 11 controls the room by the number determination unit 11 in a state where the prevention control unit controls the determination result information JI from reaching the mobile terminal unit TA and the fixed terminal unit SP. When the number of people in the RM is determined to be 1, the blocking control unit releases the blocking control. Further, when the number determination unit 11 determines that the number of people in the room RM is 2 or more while the blocking control unit has released the blocking control, the blocking control unit controls the blocking. do. Therefore, according to the present embodiment, it is possible to automatically switch between the control for blocking and the release thereof.

When the blocking control unit is performing 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 above-mentioned blocking control is performed.

With the exception of predetermined actions among predetermined actions, even if the number of people in the room RM is 2 or more, the determination result information JI is made to reach the mobile terminal unit TA and the fixed terminal unit SP. May be good. That is, for example, the detection unit SU sets a fall as a predetermined action among getting up, getting out of bed, and falling, and when it is determined that the monitored person Ob has fallen, the prevention control unit is a number determination unit. No. 11 releases the control of blocking regardless of whether the number of people is 1 or 2 or more.

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

In the present embodiment, the mobile 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.

The monitored person monitoring system MS shown in FIG. 1 includes a plurality of detection units SU described with reference to FIGS. 2 to 5, and the plurality of detection unit SUs are arranged in each of the plurality of room RMs. The monitored person monitoring system MS is a system that allocates one room RM to one monitored person Ob and monitors a plurality of monitored person Obs. The number of people determination unit 11 determines the number of people for each of the plurality of room RMs. In the blocking control unit, the determination result information JI from the detection unit SU arranged in the room RM where the number determination unit 11 determines that the number of people is 2 or more reaches the mobile 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 second aspect as an example. FIG. 6 is a flowchart illustrating the operation. With reference to FIGS. 2, 3 and 6, the imaging unit 10 captures a moving image in which the area AR of the room RM is the subject. The number of people determination unit 11 acquires the data of the moving image taken by the imaging unit 10 from the present time to a predetermined period (for example, one minute before the present time) (S11).

The number of people determination unit 11 determines the number of people in the room RM by 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 alarm flag (S14). As a result, the communication unit 13 does not transmit the determination result information JI to the management server unit SV even if the action determination unit 12 generates the determination result information JI.

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 alarm flag (S15). As a result, when the action determination unit 12 generates the determination result information JI, the communication unit 13 transmits the determination result information JI to the management server unit SV.

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

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

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

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

The management server unit SV shown in FIG. 1 receives the transmitted determination result information JI and simultaneously transmits the determination result information JI to the fixed terminal unit SP and all the mobile terminal units TA. As a result, 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 S11 to S18 described above for each room RM in FIG. 1.

Although described in the second aspect, in the case of the first aspect, the detection unit SU omits the processing 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 the third aspect, the detection unit SU omits the processing 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 and then receives the judgment result information JI, the management server unit SV does not simultaneously transmit the judgment result information JI to the fixed terminal unit SP and all the mobile terminal units TA. ..

The main effects of this embodiment will be described. In the case of a system that monitors whether one monitored person Ob (for example, a person requiring long-term care) has performed a predetermined action (for example, getting up, getting out of bed, falling down) with reference to FIG. 1, one person is monitored. If there are two or more people in the room RM (an example of the area AR) in which the person Ob is located, there is a possibility that a misjudgment may be made in determining whether or not one monitored person Ob has performed a predetermined action. In particular, when an image is used to determine whether or not one monitored person Ob has performed a predetermined action, an erroneous determination is likely to occur if the image includes two or more people. Further, if there are two or more people 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). It is not necessary for the observer (for example, a caregiver) who sees the determination result displayed on the terminal unit SP) to go to the room RM where the monitored person Ob is located.

In order to prevent the observer from being notified of the judgment result of erroneous judgment or the judgment result that the observer does not need to respond to, when a person other than the monitored person is in the room RM, that person is the switch of the detection unit SU. It is conceivable that the person manually turns off the detection unit SU to prevent the detection unit SU from operating, and when the person is not in the room RM, the person manually turns on the switch of the detection unit SU to activate the detection unit SU.

However, a person other than the monitored person may forget to switch the detection unit SU from off to on when leaving the room RM. The detection unit SU needs to restart the monitoring of whether or not the monitored person Ob has performed a predetermined action, but cannot restart it. In order to prevent this, when a person other than the monitored person 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 by using a timer. However, when the detection unit SU is automatically turned on after the elapse of a predetermined time, if a person other than the monitored person is in the room RM, the detection unit SU may make an erroneous determination.

From the above viewpoint, in the monitored person monitoring system MS according to the present embodiment, when there are two or more people in the room RM that monitors the behavior of the monitored person Ob, the monitored person Ob is excluded from the monitoring target. That is, when the number determination unit 11 determines that the number of people is 2 or more in the room RM in which the detection unit SU determines whether or not one monitored person Ob has performed a predetermined action, the prevention control unit (non-operation) (Fig.) Controls to prevent the determination result from reaching the display device (fixed terminal unit SP, mobile 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 has performed a predetermined action, the determination result of the erroneous determination is determined in the system that notifies the observer of the determination result. It is possible to prevent the observer from being notified of the judgment result that the observer does not need to take.

Further, according to the present embodiment, among the plurality of room RMs shown in FIG. 1, the room RMs whose number of people is determined to be 2 or more by the number determination unit 11 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.

The present embodiment will be described with reference to FIG. 1 in 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. Not limited. For example, the detection unit SU and the management server unit SV are connected by the first network, and the management server unit SV, the fixed terminal unit SP, and the mobile terminal unit TA are connected by a second network different from the first network. It may have been done.

Next, the determination of whether or not the monitored person Ob has performed a predetermined action will be described in detail with reference to FIGS. 3 and 7. The predetermined actions will be described with standing, sitting, and falling of the monitored person Ob, but the present invention is not limited to this, and for example, the monitored person Ob may get up, get out of bed, or fall. FIG. 7 is a functional block diagram of the action determination unit 12. The action 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 action 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 unit 21 is for controlling each unit of the action determination unit 12 according to the function of each unit.

The head extraction unit 22 extracts a head (a region of an image showing the head in the image, an image of the head) 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, the shape of the head is assumed to be elliptical, and the image of the area AR is subjected to the so-called generalized Hough transform, whereby the elliptical shape in the image of the area AR, that is, the head is extracted. Such an image processing technique is disclosed in, for example, the literature; "Makoto Murakami," Study on Feature Expression and Area Extraction in Human Head Recognition ", March 2003, Waseda University". The head from the image of the area AR by template matching using the outline shape of the part or the head shape such as an ellipse or a circle of the outline shape as a template prepared in advance, or by a method of fitting a closed curve such as a so-called Snake. May be extracted. 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 motion information for determining whether or not a person is a person based on the presence or absence of motion. Alternatively, from the viewpoint of shortening the image processing time, in order to limit the area where the image processing is performed from the image in the area AR to the area where there is a high probability that a person exists, these color information, motion information, etc. may be used. May be used. The head extraction unit 22 notifies the posture determination unit 23 of the extracted head (image area of the head).

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 predetermined posture based on the obtained parameter. Is. More specifically, the posture determination unit 23 determines whether or not the posture is the predetermined posture depending on whether or not the predetermined parameter in the head extracted by the head extraction unit 22 is equal to or higher than the predetermined threshold value th. Is to be determined. In the present embodiment, the posture determination unit 23 functionally includes a parameter calculation unit 231 and a provisional 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 capable of determining the posture of the monitoring target can be used. For example, when determining whether or not a person has fallen, the height of the head is used as the parameter because the height of the head differs between the posture of falling and other postures such as standing and sitting. it can. Further, for example, when determining whether or not the monitoring target is standing, sitting, or falling, the head is also in each of the standing, sitting, and falling postures. Since the heights of the portions are different, the height of the head can be used as the parameter. In addition, when the area AR is imaged in anticipation of the area AR from above in the height direction with respect to the monitored object, the size of the head on the image (the length of the short side in the area of the image showing the head) is the head. The size corresponds to the height of the part. That is, at the same position on the plane, the higher the height of the head, the larger the size of the head appears on the image. Therefore, in each of the above cases, the size of the head can be used as the parameter. That is, the height of the head can be estimated 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 The posture can be judged.

The tentative determination unit 232 determines whether or not the posture is the predetermined posture depending on whether or not the predetermined parameter in the head obtained by the parameter calculation unit 231 is equal to or greater than the predetermined threshold value th. According to this, it is possible to easily determine whether or not the posture is the predetermined posture only by determining whether or not the parameter is the threshold value th or more. More specifically, for example, when the height of the head is used as the parameter to determine whether or not a person has fallen, the head that can distinguish the fallen posture from other postures such as standing and sitting. The height of the portion is preset as the predetermined threshold value (first threshold value, fall determination head height threshold value) th1. Alternatively, if it is desired to detect only the completely collapsed posture, the height of the bed BT may be set to the threshold value th1. Further, for example, when the height of the head is used as the parameter to determine whether or not the monitoring target is standing, sitting, or falling, the standing posture and sitting position are used. The height of the head that can be distinguished from the posture of is set in advance as the predetermined threshold value (2-1 threshold value, standing height determination head height threshold value) th21, and the sitting posture and the falling posture are distinguished. The height of the head that can be formed is preset as the predetermined threshold (2-2 threshold, sitting position fall fall head height threshold) th22. Even when the size of the head is used as the parameter, the height of the head is replaced with the size of the head, and the threshold values th1, t21, and th22 are similarly set in advance. These threshold values th1, th21, and th22 may be appropriately set by preparing a plurality of samples in advance and performing statistical processing.

Here, when the threshold values th1 and th22 for determining a fall are set, the height of the sitting position differs depending on the height of the standing position, that is, the height. Therefore, it is preferable that the threshold values 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 sitting height based on the standing height (height), such a behavior determination unit 12 causes the posture to be monitored to fall. It becomes possible to judge whether or not there is. Further, the threshold values th1 and th22 are preferably set based on the height of the sitting 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 of the sitting position, such an action determination unit 12 determines whether or not the posture of the monitored object is a fall. You will be able to judge whether or not.

Then, the provisional 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 extraction unit 22 acquires each of the plurality of images of the area AR acquired by the imaging unit 10. , The head is extracted from the image, and the posture determination unit 23 sets the predetermined parameters 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 a predetermined one.

Then, the final determination unit 24 finally determines whether or not the posture is the predetermined posture based on the 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 in the predetermined posture continuously (that is, always for a predetermined fixed time) a predetermined number of times. Finally, it is determined that the posture is the predetermined posture. 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 to that effect. 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 receives information that the posture of the monitoring target is finally the predetermined posture. Output.

(Summary of embodiments)
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 device that transmits the judgment result information indicating the judgment result and the judgment result information transmitted by the monitored person monitoring device are received via the network, and the received judgment 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. , The number of people determination unit for determining the number of people in the area, and the determination result information is the determination result information when the number of persons is determined to be 2 or more included in the monitored person monitoring device or the server device. It is provided with a blocking control unit that controls blocking of reaching the display device and releases the blocking control when the number of the persons is determined to be 1.

In the case of a system that monitors whether one person to be monitored (for example, a person requiring long-term care) has performed a predetermined action (for example, getting up, getting out of bed, falling, etc.), the area where one person is being monitored (for example, a room). ), If there are two or more persons, there is a possibility of erroneous determination in determining whether or not one monitored person has performed a predetermined action. In particular, when an image is used to determine whether or not one monitored person has performed a predetermined action, if the image includes two or more people, an erroneous determination is likely to occur. 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 judgment result displayed on the display device. The watcher (eg, caregiver) who sees does not have to go to the area where the watched person is.

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 people in the area for monitoring the behavior of the monitored person, the monitored person is excluded from the monitoring target. That is, when the number determination unit determines that the number of people is 2 or more in the area where the monitored person monitoring device determines whether or not one monitored person has performed a predetermined action, the blocking control unit determines. 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 monitorer of the determination result. It is possible to prevent the observer from being notified of the determination result of the above and the determination result that the observer does not need to take action.

There are the following three modes of the blocking control unit, for example.

(Aspect 1) When it is determined that the number of people in the area is 2 or more, the blocking control unit has a function of determining 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 device. According to the first aspect, since it is not determined whether or not the monitored person has performed a predetermined action, the 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 it is determined that the number of people in the area is 2 or more, the blocking control unit controls 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 device. According to the second aspect, even if the monitored person monitoring device determines that the monitored person has performed a predetermined action and creates the judgment result information, the judgment result information is not transmitted, so that the judgment result information is displayed on the display device. It can be blocked from reaching. According to the first and second aspects, when it is determined that the number of people in the area is 2 or more, the determination result information is not sent to the network, so that the traffic on the network can be reduced.

(Aspect 3) When the number of people in the area is determined to be two or more, the blocking control unit controls 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 third aspect, even if it is determined that the monitored person monitoring device has performed a predetermined action and the judgment result information is transmitted to the server device, the server device does not send the judgment result information to the display device. Can be prevented from reaching the display device.

In the above configuration, the monitored person monitoring device takes an image of the area as a subject and generates an image showing the subject, and the inside of the area based on the image generated by the imaging unit. Whether or not the monitored person has performed the predetermined action in the area based on the number determination unit that detects the number of moving objects and determines the detected number as the number of the person and the image. It is provided with an action determination unit for determining whether or not, and a communication unit for transmitting the determination result information when the action determination unit determines that the predetermined action has been performed.

In this configuration, the number of people in the area is determined by using an image used to determine whether or not the monitored person has performed a predetermined action in the area. This can be achieved by, for example, the background subtraction method or the interframe subtraction method. According to this configuration, it is not necessary to provide a new sensor 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 types of actions as the predetermined action, and the blocking control unit allows the monitored person monitoring device to perform the two or more types of actions. When it is determined that the behavior is determined in advance, the number determination unit releases the blocking control regardless of whether the number of persons is 1 or 2 or more. The monitored person monitoring device determines that the person being monitored falls over as the predetermined action.

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

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 a plurality of the monitored persons, and a plurality of the monitored persons. The observer monitoring device is arranged in each of the plurality of the rooms, the number of people determination unit determines the number of the persons in each of the plurality of the rooms, and the prevention control unit is the number of people 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 people is determined to be 2 or more from reaching the display device.

According to this configuration, of the plurality of rooms, the room in which the number of people is determined by the number determination unit to be 2 or more is excluded from the monitoring target. 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 device according to the second aspect of the present embodiment includes an imaging unit that takes a picture of a predetermined area as a subject and generates an image showing the subject, and a monitored person in the area. A behavior determination unit that determines whether or not the monitored person has performed a predetermined action in the area based on the image generated by the imaging unit, and the behavior determination unit determines the predetermined behavior. When it is determined that the action has been taken, the number of moving objects in the area is detected based on the communication unit that transmits the determination result information indicating the determination result and the image, and the detected number is the number of the person. A function of determining the number of people to be determined, a function of determining that the monitored person has performed the predetermined action when the number of the persons is determined to be 2 or more, and the communication unit of the communication unit. It is provided with a stop control unit that controls to stop at least one of the functions of transmitting determination result information and releases the control to stop the person when the number of the persons is determined to be 1.

According to the monitored person monitoring device according to the second aspect of the present embodiment, it has the same operation and effect 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. In this case, a step of transmitting the determination result information indicating the determination result and a step of causing the display device to receive the determination result information via the network and causing the display device to display the determination result indicated by the determination result information. In the 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, the above-mentioned A second step is provided in which control is performed to prevent the determination result information from reaching the display device, and when the number of the persons is determined to be 1, the blocking control is released.

According to the monitored person monitoring method according to the third aspect of the present embodiment, it has the same operation and effect 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 the present application.

In order to express the present invention, the present invention has been appropriately and sufficiently described through the embodiments with reference to the drawings above, but those skilled in the art can easily change and / or improve the above embodiments. It should be recognized that it can be done. Therefore, unless the modified or improved form implemented by a person skilled in the art is at a level that deviates from the scope of rights of the claims stated in the claims, the modified form or the improved form is the scope of rights of the claims. It is interpreted as being included in.

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

Claims (7)

A monitored person monitoring device that transmits judgment result information indicating a judgment result when it is determined that the monitored person has performed a predetermined action in a predetermined area for one person to be monitored. 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 that determines the number of people in the area,
When the number of persons is determined to be 2 or more by being included in the monitored person monitoring device or the server device, control is performed to prevent the determination result information from reaching the display device, and the number of persons is increased. A monitored person monitoring system including a blocking control unit that releases the blocking control when the determination is 1. The monitored person monitoring device is
An image pickup unit that takes a picture of 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 detected number is determined to be the number of people.
Based on the image, an action determination unit that determines whether or not the monitored person has performed the predetermined action in the area,
The monitored person monitoring system according to claim 1, further comprising a communication unit that transmits the determination result information when the action determination unit determines that the predetermined action has been performed. The monitored person monitoring device can distinguish and determine two or more types of actions as the predetermined action.
When the blocking control unit determines that the monitored person monitoring device has performed a predetermined action among the two or more types of actions, the number determination unit determines that the number of persons is one or two or more. The monitored person monitoring system according to claim 1 or 2, wherein the blocking control is released regardless of which determination is made. The monitored person monitoring system according to claim 3, wherein the monitored person monitoring device determines that a fall of the monitored person is a predetermined action. The monitored person monitoring system is a system that allocates one room as the area to one person to be monitored and monitors a plurality of the monitored persons.
A plurality of the monitored person monitoring devices are arranged in each of the plurality of the rooms.
The number of people determination unit determines the number of the persons for each of the plurality of the rooms, and determines the number of the persons.
The blocking control unit determines that the determination result information from the monitored person monitoring device arranged in the room where the number of people determination unit determines that the number of people is 2 or more reaches the display device. The monitored person monitoring system according to any one of claims 1 to 4, which controls blocking. An imaging unit that takes a picture of a predetermined area as a subject and generates an image showing the subject.
An 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 for one monitored person in the area. Department and
When the action determination unit determines that the predetermined action has been performed, the communication unit that transmits the determination result information indicating the determination result and the communication unit.
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 the person.
When the number of the persons is determined to be 2 or more, the action determination unit has a function of determining that the monitored person has performed the predetermined action, and the communication unit has a function of transmitting the determination result information. A monitored person monitoring device including a stop control unit that controls to stop at least one of them and releases the control to stop the person when the number of the persons is determined to be 1. Targeting one monitored person in a predetermined area, when it is determined that the monitored person has performed a predetermined action in the area, a step of transmitting judgment result information indicating the judgment result and a network are provided. A monitored person monitoring method comprising a step of causing a display device to receive the determination result information via the display device and causing the display device to display the determination result indicated by the determination result information.
The first step of determining the number of people in the area,
In the first step, when the number of the persons is determined to be 2 or more, control is performed to prevent the determination result information from reaching the display device, and when the number of the persons is determined to be 1. A monitored person monitoring method comprising a second step of releasing the blocking control.

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