JP2020126553A - Watching system and control program for watching system - Google Patents

Abstract

To provide a watching system that appropriately protects privacy of a watching target person, and a control program for the watching system.SOLUTION: A watching system 1 comprises: a determination unit (detection unit 10) that determines, based on an acquired captured image, whether or not a predetermined event related to a watching target person over an observation region has occurred; and a management server 20 as a management unit that stores the event and the captured image of the observation region in which the event has occurred in association with each other in a storage unit when the determination unit determines that the event has occurred. The determination unit includes an acceptance unit (control unit) that accepts a recording prohibition instruction sent from a controller operated by a user in each room. When the management unit accepts the recording prohibition instruction, the management unit stops a storage process of storing the captured image in a recording unit 23.SELECTED DRAWING: Figure 1

Description

The present invention relates to a watching system and a control program for the watching system. In particular, the present invention relates to a watching system and a control program for the watching system used in a facility that cares for a watching target person.

In Japan, the extension of life has become remarkable due to the improvement of living standard, the improvement of hygiene environment, and the improvement of medical care in line with the postwar high economic growth. For this reason, an aging society with a high aging rate is being combined with a decrease in the birth rate. In such an aging society, it is expected that the number of people requiring nursing care will increase due to illness, injury, and aging.

A person to be monitored, such as a care recipient, may fall while walking, fall from a bed and get injured, or walk around and be lost in a facility such as a hospital or a welfare facility for the elderly. Therefore, in order to enable nurses and caregivers to rush immediately when the watched person is in such a state, or to monitor the status of the watched person so as not to go missing. Development is in progress.

In the nurse call system disclosed in Patent Document 1 as such a system, one of the states of waking up and leaving the watching target person is determined from an image captured by a camera installed on the bed of the watching target person (patient). If a warning action such as getting up, leaving the bed, etc. is performed, it is possible to display the image captured by the camera on the nurse call base unit provided at the nurse station so that the situation can be confirmed. I have to. In addition, in Patent Document 1, in consideration of the privacy problem that the captured image is visible to a third party, the mosaiced captured image is displayed, and the captured image during attention behavior is recorded. Is also disclosed.

Further, Patent Document 2 discloses a watching system for the purpose of reducing the burden on the watching person. In this watching system, when the watched person is detected by the face recognition function from the image captured by the camera connected to the Internet using the registered face recognition data of the watched person, a video is recorded for a certain period of time and this video is recorded. The URL for browsing is sent to the registered watcher's e-mail address.

JP, 2014-90913, A JP, 2017-111506, A

However, in the nurse call system disclosed in Patent Document 1, if there is a person who is not a person to be watched (patient) such as a visitor, a cleaner, a nurse, or a caregiver, it is erroneously detected as the attention behavior of the person to watch. There is a risk of being lost. In such a case, there is a problem that the captured image is displayed carelessly and recorded. Further, in Patent Document 2, when a watching target person is detected, a moving image is recorded for a certain period of time and disclosed to the watching person, and there is no particular description regarding prohibition of recording.

The present invention has been made in view of the above circumstances, and an object of the present invention is to appropriately protect the privacy of a person being watched over by preventing unintentional recording.

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

(1) An acquisition unit that acquires a captured image of an observation region obtained by capturing an image with a camera,
Based on the captured image acquired, a determination unit that determines the presence or absence of the occurrence of a predetermined event regarding the watching target of the observation region,
When it is determined that the event has occurred by the determination unit, the management unit that stores the event and the captured image of the observation region in which the event has occurred in a storage unit in association with each other,
A reception unit that receives a recording prohibition instruction sent from the controller operated by the user,
The management system, when the management unit receives the recording prohibition instruction, stops the accumulation process of storing the captured image in the storage unit.

(2) The controller is provided in the observation area,
The monitoring system according to (1), wherein, when the management unit receives the recording prohibition instruction, the management unit stores the captured image for a predetermined time including a time point when the recording prohibition instruction is received in the storage unit.

(3) The watching system according to (1) or (2), wherein the management unit restarts the accumulation process that has been stopped after a predetermined time has elapsed after receiving the recording prohibition instruction.

(4) The watching system according to (3), wherein the management unit outputs an alert for notifying the resumption by a speaker arranged in the observation area before resuming the accumulation process.

(5) The staff who handles the above-mentioned person to be watched carries a staff terminal capable of wireless communication,
The staff terminal functions as the controller,
When the reception unit receives the recording prohibition instruction sent from the staff terminal,
The management unit associates the terminal ID given to the staff terminal with the time at which the recording prohibition instruction is accepted, and stores it in the storage unit, according to any one of (1) to (4) above. Watching system.

(6) The management unit restarts the accumulation process that has been stopped after a predetermined time has elapsed after receiving the recording prohibition instruction, and
The monitoring system according to (5), wherein before the accumulation process is restarted, alert information for notifying the restart is transmitted to the staff terminal that has sent the recording prohibition instruction.

(7) Step (a) of acquiring a captured image of the observation region obtained by the camera capturing the image,
A step (b) of determining whether or not a predetermined event related to the watching target person in the observation area has occurred based on the captured image acquired in the step (a);
When it is determined in step (b) that the event has occurred, the step of storing the event and the captured image of the observation region in which the event has occurred in a storage unit in association with each other,
A step (d) of receiving a recording prohibition instruction sent from the controller operated by the user,
When the recording prohibition instruction is accepted in the step (d), a step (e) of stopping the accumulation process of storing the captured image in the storage section,
A control program for causing a computer that controls the watching system to execute processing including the above.

The monitoring system according to the present invention, based on the acquired captured image, a determination unit that determines whether or not a predetermined event regarding the observation target person in the observation region has occurred, and if it is determined that an event has occurred by the determination unit, The management unit includes an management unit that stores an event and a captured image of the observation region in which the event has occurred in the storage unit in association with each other, and a reception unit that receives a recording prohibition instruction sent from the controller operated by the user. When the recording prohibition instruction is received, the accumulation process of storing the captured image in the storage unit is stopped. This makes it possible to appropriately protect the privacy of the person being watched over.

It is a figure which shows the whole structure of a watching system. It is a figure which shows the example of the detection part installed in the room of a watching target person. It is a block diagram which shows schematic structure of a detection part. It is a block diagram showing a schematic structure of a management server. It is a block diagram showing a schematic structure of a staff terminal. It is a sequence chart which shows the procedure of a process of a watching system. It is an example of an event list stored in the storage unit. It is an example of an operation screen for confirming an event displayed on the staff terminal. 6 is a flowchart showing a recording prohibition flag setting process performed by the management server in the first embodiment. 7 is a flowchart showing a process executed by the management server to stop the process of accumulating captured images using a recording prohibition flag. 11 is a flowchart showing a recording prohibition flag setting process performed by the management server in the second embodiment. FIG. 12A is an example of a status list recording the recording status, and FIG. 12B is an example of an event list. 9 is a flowchart showing a process that is executed by the watching system according to the modification and that stops the process of accumulating captured images.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the description of the drawings, the same elements will be denoted by the same reference symbols, without redundant description. Further, the dimensional ratios in the drawings are exaggerated for convenience of description, and may differ from the actual ratios.

(overall structure)
FIG. 1 is a diagram showing an overall configuration of a watching system according to the present embodiment, and FIG. 2 is a diagram showing an example of a detecting unit installed around a bed in a room of a watching target person.

As shown in FIG. 1, the watching system 1 includes a plurality of detection units 10 (10a to 10d), a management server 20, a fixed terminal 30, and one or more staff terminals 40 (40a, 40b). These are communicably connected to each other via a network 50 such as a LAN (Local Area Network), a telephone network or a data communication network by wire or wireless. The network 50 may include a repeater such as a repeater, a bridge, a router, or a cross connect that relays communication signals. In the example shown in FIG. 1, the staff terminal 40, the detection unit 10, the management server 20, and the fixed terminal 30 are mutually connected by a network 50 such as a wireless LAN including an access point 51 (for example, a LAN according to the IEEE 802.11 standard). , Is communicatively connected.

The watching system 1 is arranged at an appropriate place according to a watching target person (also referred to as a target person or a care target person) 70. The watching target person 70 is, for example, a patient who needs nursing due to illness or injury, a cared person who needs nursing care due to deterioration of physical ability due to aging, or a single person living alone. In particular, from the viewpoint of enabling early detection and early countermeasures, the watching target person 70 may be a person who needs the detection when a predetermined inconvenient event such as an abnormal state occurs in the person. Therefore, the watching system 1 is preferably installed in a building such as a hospital, a welfare facility for the aged, and a dwelling unit according to the type of the watching target person 70. In the example illustrated in FIG. 1, the watching system 1 is arranged in a facility including a plurality of rooms (a living room) in which a plurality of watching target persons 70 reside and a plurality of rooms including a care station (also called a nurse station).

The detection unit 10 is arranged in each room (corresponding to an observation area) of the watching target person 70. In the example shown in FIG. 1, the four detection units 10 (10a to 10d) are arranged in the living rooms of the watching target person 70, such as Mr. A, Mr. B, Mr. C, and Mr. D. A bed 60 is included in the observation region of the detection unit 10. The care staff 80, who provides nursing or nursing care to the watching target person 70, carries the staff terminal 40 which is a mobile terminal. However, the position, the number, and the like of each component included in the watching system 1 are not limited to the example illustrated in FIG. For example, the management server 20 may not be located at the care station and may be an external server unit connected to the network 50. Note that the detection unit 10 may be arranged in the room of each of the watching target people 70 so that the watching target person 70 can detect not only when the person is watching at one facility but also when the user is at home.

(Detection unit 10)
FIG. 3 is a block diagram showing a schematic configuration of the detection unit. As shown in the figure, the detection unit 10 includes a control unit 11, a communication unit 12, a camera 13, a recording prohibition switch 14, a care call unit 15, and a voice input/output unit 16, which are mutually connected by a bus. ing. The recording prohibition switch 14 functions as a "controller" that issues a recording prohibition instruction described later. The recording prohibition switch 14, the care call unit 15, and the voice input/output unit 16 are arranged in the same housing, and short-range wireless communication, for example, between the control unit 11 and the camera 13 which are separate from them, You may make it communicate by Bluetooth (trademark).

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

The communication unit 12 is an interface circuit for communicating with another device such as the management server 20, the fixed terminal 30, or the staff terminal 40 via the network 50. Interfaces for various local connections such as a network interface for wired communication according to standards such as Ethernet (registered trademark) and a wireless communication interface according to standards such as Bluetooth and IEEE 802.11, and communication with each terminal connected to the network 50. I do.

The camera 13 is arranged, for example, on the ceiling of the living room or on the upper part of the wall, and photographs the bed 60 of the watching target person 70 directly below as an observation area and outputs a photographed image (image data). The captured image (also referred to as "video") includes a still image and a moving image. Although the camera 13 is a near-infrared camera, a visible light camera may be used instead of this, or these may be used together. Although the configuration of the system 1 is described as watching over the camera 13, the invention is not limited to this, and the detection unit 10 may acquire an image from an external camera. In either case, the detection unit 10 functions as an “acquisition unit”.

The control unit 11 recognizes the behavior of the watching target person 70 from the captured image captured by the camera 13. The behaviors to be recognized include "getting up" from the bed 60, "getting away" from the bed 60, "falling" falling from the bed 60, and "falling" falling to the floor or the like.

The control unit 11 detects a silhouette of an image (hereinafter, referred to as “person silhouette”) from a plurality of captured images (moving images). The person silhouette can be detected, for example, by extracting a range of pixels having a relatively large difference by a time difference that is obtained by subtracting images whose shooting times are before and after. The person silhouette may be detected by a background subtraction method that subtracts the background image from the captured image. The recognition of getting up, leaving the bed, falling, and falling is based on the detected person silhouette from the posture of the target person 70 (for example, standing position, sitting position, recumbent position), and the relative position to the installation object such as the bed 60 in the living room. Recognize whether you wake up, leave the bed, or fall (fall). For example, the wake-up can be recognized by the preset width of the person silhouette crossing any side of the quadrangle in the upper view, which has four corners of the bed 60 as vertices, and is 20 cm or more. Also, for example, leaving the bed can be recognized when the ratio of the area of the person silhouette outside the inside of the quadrangle increases to 80% or more.

These recognitions may be performed by a program processed by the CPU of the control unit 11 or may be performed by a built-in processing circuit. In this case, the detection unit 10 functions as a “determination unit”. Further, the present invention is not limited to this, and the management server 20 side may perform all or most of these recognition processes, and the control unit 11 may only transmit the captured image to the management server 20. In this case, the detection unit 10 has only the function of the “acquisition unit”, and the management server 20 functions as the “determination unit”. When the control unit 11 recognizes any type of action, the control unit 11 transmits a notification that the action has occurred to the management server 20 or the like.

Here, in the case where the work of the care staff 80 is a care work for the person 70 to be watched over, the content of correspondence regarding a predetermined event will be described. The predetermined event is an event related to the watching target person 70, and includes at least getting up, leaving the bed, falling, and falling. If "wake-up" is determined and the determination is within a predetermined time (wake-up time set at the facility (for example, 7-8 am), morning care is performed. This morning care includes face washing, tooth brushing assistance, denture wearing, dressing assistance, and the like. In the case of an event of “getting out of bed”, wheelchair transfer and walking assistance may be required. Further, as events other than the events determined by the detection unit 10 (regular time), there are beverages, meal assistance, excretion assistance, wheelchair transfer, walking assistance, and postural change (pressure ulcer prevention). For these regular events, an alert may be generated by the care call unit 15 or the like at a fixed time.

(Recording prohibition switch 14)
The recording prohibition switch 14 includes a push button type switch, and when the switch is pressed by the watching target person 70 and other users in the living room, a recording prohibition instruction is transmitted. The recording prohibition switch 14 functions as a "controller" as described above. The recording prohibition switch 14 is preferably arranged within the photographing range of the camera 13 by being fixed to a wall or the like. For example, when the recording prohibition switch 14 fixedly attached to the wall is operated, the recording prohibition instruction is transmitted to the control unit 11 through the communication of the short-distance wireless communication standard such as Bluetooth. In this case, the control unit 11 of the detection unit 10 functions as a “reception unit” that receives the recording prohibition instruction. While recording is prohibited (accumulation processing is stopped), an LED (not shown) provided on the recording prohibition switch 14 may be blinked to indicate this.

As described above, each event is determined from the posture and movement of the watching target person 70 recognized from the person silhouette, but when another person such as the cleaning staff or the care staff 80 who cleans the living room is in the living room. Erroneous determination is likely to occur. In particular, when the watching target person 70 and the care staff 80 are in the vicinity of the bed 60 at the same time due to food assistance, excretion assistance, etc., an erroneous determination is likely to occur. When the monitoring system 1 receives a recording prohibition instruction from the recording prohibition switch 14 by the user, thereafter, a storage process of storing captured images including recording of captured images associated with an event until a predetermined cancellation condition is satisfied, and The notification process to the care staff 80 according to the occurrence of the event is stopped. The details of these stop processes will be described later.

The care call unit 15 includes a push button type switch, and when the switch is pushed by the watching target person 70 or the like, a care call (nurse call) is transmitted. A voice call microphone may be used instead of the push-button switch to detect the care call. When the switch of the care call unit 15 is pressed, that is, when the care call is detected, the control unit 11 transmits a notification that there is a care call to the management server 20 and the like via the communication unit 12 and the network 50.

The voice input/output unit 16 is, for example, a speaker and a microphone, and enables voice communication by transmitting/receiving a voice signal to/from the staff terminal 40 or the like via the communication unit 12. The voice input/output unit 16 may be connected to the detection unit 10 via the communication unit 12 as an external device of the detection unit 10. The speaker issues an alert (for example, a buzzer sound) to notify the restart when the storage process stopped by the recording prohibition instruction is automatically restarted (release of the stop) after a predetermined time elapses. This alert will be described later.

In addition, the detection unit 10 transmits and receives microwaves to and from the bed 60, and a Doppler shift type body movement sensor that detects a Doppler shift of microwaves generated by body movement (for example, respiratory movement) of the watching target person 70, It may be further provided. With this body movement sensor, the body movement of the chest (vertical movement of the chest) associated with the breathing movement of the watching target person 70 is detected, and the disturbance of the cycle in the body movement of the chest or the chest that is equal to or less than a preset threshold value When the amplitude of body movement is detected, it is recognized that the body movement is abnormal.

In the present embodiment, the change in the state recognized by the detection unit 10 regarding the watching target person 70 is notified (reported) to the care staff 80 such as getting up, leaving the bed, falling down, falling down, and abnormal movement of the body. A power event is called an event. This event also includes a care call by the care call unit 15. The detection unit 10 transmits information on the occurred event to the management server 20.

(Management server 20)
FIG. 4 is a block diagram showing a schematic configuration of the management server. The management server 20 functions as a “management unit”, and includes a control unit 21, a communication unit 22, and a storage unit 23 (also referred to as a database). The management server 20 may be provided in the same building as the room for the watching target person 70, or may be provided in a remote place and connected via a network. For example, the management server 20 may be a cloud server virtually constructed by a plurality of servers arranged on a network such as the Internet. The respective components are connected by a bus so that they can communicate with each other. The storage unit 23 stores an event list, recorded images (permanently held captured images), and various kinds of information regarding the watching target person 70 and the care staff 80. In addition, a predetermined area of the HDD of the storage unit 23 functions as a temporary storage unit, and temporarily stores a captured image output from each camera 13 that captures an observation area for a predetermined time (for example, tens of minutes to tens of hours). To do. That is, a predetermined area of the HDD is made to function as a ring buffer, and loop recording is performed as a recorded image for each observation area for a predetermined time. In the loop recording, when the recording time is equal to or longer than a predetermined time, the captured images with the old time stamps are sequentially overwritten with the new captured images. The predetermined time for temporary storage is, for example, several seconds. It can be arbitrarily determined in view of the capacity and necessity of the storage device, such as minutes, hours, days, weeks, months. The temporary storage may be performed in a storage unit such as the HDD of the control unit 11. In addition, as will be described later, when an event occurs, a captured image (moving image) for a predetermined time (for example, several seconds to several tens of seconds) including the time when the event occurs is tagged. The tagged captured image is prohibited from being overwritten and is permanently retained until a new request is made by the user. If the control unit 11 of the detection unit 10 is configured to temporarily store the data, it is transferred to the storage unit 23 of the management server 20 by being tagged, and thereafter, is permanently retained. The other control unit 21 and the communication unit 22 have the same functions as the respective components of the detection unit 10, and thus detailed description thereof will be omitted.

The management server 20 functioning as a management unit also functions as a determination unit by itself or in cooperation with the detection unit 10 as described above. For example, it is determined (identified) to which watching target person 70 the event such as getting up, leaving the bed, falling, and a care call detected by the detection unit 10 is related. In this determination, the detection unit 10 that has detected the event is ID-managed, and the watching target person 70 (that is, the resident of the room) that is associated with this is determined from the room number in which the detection unit 10 is installed. .. Then, the determined event type and the watching target person 70 are associated with each other and added to the event list of the storage unit 23.

(Fixed terminal 30)
The fixed terminal 30 is a so-called PC (Personal Computer), and includes a control unit including a CPU, a RAM, and the like, a communication unit, a display unit, an input unit, and a voice input/output unit. The fixed terminal 30 is arranged, for example, in a nurse station.

Further, the care staff 80, the technical staff, or the like associates the room number with the detection unit 10 when the detection unit 10 is attached to each room (living room) through the fixed terminal 30, or the interior of the living room such as the bed 60. The position information of the installed object, that is, the contour information of the ceiling camera 13 viewed from above is calibrated and designated. In addition, identification information such as the name and ID number of the watching target person 70 who is hospitalized or resides is also associated with each room number. In addition, the staff or the like can confirm the room number for which the storage process is stopped by the recording prohibition instruction described later on the displayed resident list screen.

(Staff terminal 40)
FIG. 5 is a block diagram showing a schematic configuration of the staff terminal 40. The staff terminal 40 includes a control unit 41, a wireless communication unit 42, a display unit 43, an input unit 44, and a voice input/output unit 45, which are mutually connected by a bus. The control unit 41 includes a CPU, a RAM, a ROM, and the like, which has the same configuration as the control unit 11 of the detection unit 10. The wireless communication unit 42 enables wireless communication using a standard such as Wi-Fi or Bluetooth, and wirelessly communicates with each device via the access point 51 or directly. The display unit 43 and the input unit 44 are touch panels, and a touch sensor as the input unit 44 is superimposed on the display surface of the display unit 43 formed of liquid crystal or the like. The display unit 43 and the input unit 44 cause the care staff 80 to display various operation screens listing a plurality of events included in the event list, and receive various operations through the operation screens. The voice input/output unit 45 is, for example, a speaker and a microphone, and enables a voice call by the care staff 80 with another staff terminal 40 via the wireless communication unit 42. The staff terminal 40 is a device that functions as a user interface of the watching system 1, and can be configured by a portable communication terminal device such as a tablet computer, a smartphone or a mobile phone. Further, the staff terminal 40 also functions as a controller, and the input unit 44 receives the “recording prohibition instruction” and its cancellation instruction through the operation screen displayed on the display unit 43.

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

(Procedure for processing of the monitoring system (basic processing))
Next, a procedure of processing performed by the entire watching system 1 will be described. First, the notification process related to the basic event determination and the captured image storage process will be described with reference to FIGS. 6 to 8. After that, with reference to FIG. 9 and FIG. 10, a process when the recording prohibition instruction from the user is received will be described.

FIG. 6 is a sequence chart showing a processing procedure of the watching system.

(Step S110)
As shown in FIG. 6, the detection unit 10 detects a movement of the watching target person 70 in the observation region or a nurse call event by the watching target person 70. Then, the detection unit 10 determines whether or not a fall, a fall, or another event has occurred based on the movement of the watching target person 70.

(Steps S120 and S130)
When it is determined that an event has occurred, the detection unit 10 sends the event information to the management server 20. Further, the detection unit 10 transmits image data (moving image or still image) obtained by photographing the observation area with the camera 13 when an event occurs. In this case, if the type of event that occurred is a specific type, for example, an event that may lead to an accident such as a fall or a fall, a predetermined time (for example, several seconds to several tens of seconds) before and after the occurrence time including the occurrence time is included. A moving image may be transmitted, and if it is another type of event, a still image at the time of occurrence may be transmitted.

(Steps S140 and S150)
The management server 20 updates the event list. Further, the storage unit 23 stores the image data of the moving image before and after the occurrence time or the still image at the occurrence time sent in step S130. This image data is associated with the event. As another example, the detection unit 10 continuously transmits the captured images to the management server 20, and the management server 20 side overwrites them on the temporary storage unit for a predetermined time (for example, several hours in the past). Remember. Then, the management server 20 reads a still image or a moving image before and after the occurrence time from the temporary storage unit in response to the occurrence of the event and the reception of the event information from the detection unit 10, and stores it in association with the event. Good.

In the present embodiment, as the captured image, a moving image of several tens of seconds before and after the event occurrence time is recorded in the storage unit 23 in association with all types of events. However, the present invention is not limited to this, and a moving image may be recorded only when the type of event is specific, for example, when the event falls or falls, and still images may be recorded for other types of events. A user such as an administrator may be allowed to specify the type of event for recording a moving image.

FIG. 7 is an example of an event list stored in the storage unit 23. The events included in the event list include waking up, leaving the bed, falling, falling, and a nurse call as described above. The latest event transmitted in step S120 is added to the end of the event list.

As shown in FIG. 7, for each event, an event ID that is a primary key automatically assigned, a detection unit ID (room number), a target person (watching target person), an event type, an occurrence date and time (time), The recorded image data and information on the correspondence status are included. As described above, the recorded image data is image data of a moving image or a still image, which is transmitted by step S130 and obtained by the detection unit 10 when an event occurs. The response status includes status, response staff, and response date and time (time). The correspondence status will be described later.

In the example shown in FIG. 7, the event with the event ID 010 is a fall, and the events with the event IDs 011 and 012 are nurse calls. Event IDs 013 to 015 are waking up, leaving the bed, and falling, which occurred in succession for one person 70 (Mr. B) to be watched over. The status of the correspondence status regarding the events of event IDs 010 to 012 has already been set, and the event IDs 013 to 015 are not set.

(Step S160)
When the event list is updated because a new event is detected and added, or the status of the event is changed, the management server 20 updates the updated event list to all staff members who are logged in. Deliver to terminal 40. The delivery destination at this time may be delivered only to the staff terminal 40 used by the care staff 80 who is in charge of the watching target person 70 who has caused the event. Each staff terminal 40 receiving the event list returns a receipt confirmation command (not shown) in response to receiving the event list from the management server 20. The management server 20 may transmit the event list by transmitting only the difference data. For example, only the changed portion of the event list transmitted immediately before, that is, only the added or updated event is transmitted to all the staff terminals 40 as the event list.

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

FIG. 8 is an example of operation screens 431 and 432 for inputting a response policy to an event displayed on the display unit 43 of the staff terminal 40. The operation screen 431 shown in the figure is a screen in which a list of event lists is displayed. The displayed event can be scrolled up and down by flicking.

Areas a11 and a12 of the operation screen 431 correspond to the event IDs 011 and 012 of the event list of FIG. 7, respectively. In the areas a11 and a12, an icon indicating that it is a nurse call and that it has been handled are displayed. The area a13 corresponds to the event IDs 013 to 015 surrounded by the broken line frame in FIG. Since these are related to the same watching target person 70 (Mr. B), they are collectively displayed in the same area. Further, since it is unsupported, a thumbnail image is displayed in the area a13 so that it can be easily distinguished from the supported. This thumbnail image is created from a still image cut out from the moving image i015 (see FIG. 7) related to the latest event (ID015). By operating the area a14, a text message can be exchanged with another care staff member 80 who is logged in. The control unit 41 transitions to the operation screen 432 for content confirmation by accepting a click operation on the area a13 by the care staff 80 on the operation screen 431.

(Step S180)
The care staff 80 confirms the content of the event on the operation screen 432 displayed on the staff terminal 40. On the operation screen 432, in the area a21, the ID (name: Mr. B) of the watching target person 70 who has generated (determined) an event and the ID of the care staff 80 who uses the staff terminal 40 (name: staff A) are displayed. It is displayed. In the area a22, the elapsed time from the event occurrence time is displayed. As shown in the broken line frame in FIG. 7, for the watching target person 70 (Mr. B), the occurrence of events of getting up, leaving the bed, and falling is continuously determined, and both are unsupported status. In the area a22, icons representing events of "wake-up" and "leaving" other than the latest event are shown. The elapsed time (“elapsed 0 minutes”) shown in the region a22 is the elapsed time (decimal is rounded down) since it was determined that the latest event occurred. In the area a23, a character indicating “fall” and an icon are shown. Further, in the area a24, a thumbnail image of a captured image at the time of fall determination is displayed. When the thumbnail image is insufficient as information and the care staff 80 wants to confirm the situation of the watching target person 70 who has caused a fall, the care staff 80 operates the “speak” button and the “view” button below. By operating the "speak" button, it is possible to talk with the watching target person 70 (Mr. B) through the voice input/output unit 16. By operating the “view” button, the live image captured by the camera 13 can be viewed by streaming playback.

The care staff 80 (Staff A) decides that he/she takes the initiative in taking charge of the fall (ID015) displayed by operating the "corresponding" button in the area a25. If not, the return button (triangle icon) in the area a26 is operated to return to the event list screen.

(Steps S190, S200)
The staff terminal 40 transmits a response request regarding the selected event to the management server 20 in response to the operation of the “corresponding” button, and in response thereto, the management server 20 returns an approval notification.

(Step S210)
The management server 20 updates the event list according to the process of step S190. Specifically, the status of the event list (ID 013 to 015: fall, etc.) is changed to "ready". In the present embodiment, the care staff 80 changes the status to “corresponding” in response to operating the “corresponding” button described above for the event displayed on the operation screen 432. That is, by operating the "correspondence" button, the correspondence status of "corresponding", which is information indicating confirmation, is input, and it is considered that the correspondence has been made, and the correspondence date and time is recorded. More specifically, in the event list of FIG. 7, the time when the processes of steps S190 and S200 are performed is recorded in the corresponding date/time column. Note that the time and date when the care staff 80 enters the room of the watching target person 70 who has caused an event such as a fall, a fall, or a nurse call may be recorded in the time and date column as the corresponding time and date. .. In addition, the management server 20 transmits the updated event list to all staff members who are logged in, in response to updating the event list.

As described above, when the occurrence of an event such as a fall or a fall is determined, event information including the response status to the event is accumulated in the event list. Image data is associated with each event in the event list and stored and accumulated. Such event determination and image data accumulation processing are basically performed continuously for 24 hours without stopping. However, as described above, if another person such as the cleaning staff or the care staff other than the watching target person 70 is in the observation area, an erroneous determination is likely to occur. In addition, it is not preferable that the processing of the care staff 80 carelessly records and remains the image data from the viewpoint of privacy such as excretion assistance, meal assistance, and the like. The same applies to the case where the person to be watched 70 himself/herself wants to secure privacy when he/she changes clothes in an observation area which is also a private space, and it is not preferable that the image data is recorded and left carelessly. Therefore, in the present embodiment, as will be described below, when a recording prohibition instruction is received through a user's operation on the controller, the image captured by the camera 13 is prioritized over normal processing related to event detection, and the image captured by the camera 13 is stored in the storage unit 23. Stop the accumulation process that is permanently stored in. In the following, the accumulation process of permanently storing the captured image of the camera 13 in the storage unit 23 is also simply referred to as “accumulation process”.

(Procedure for monitoring system processing (stopping storage processing))
FIG. 9 is a flowchart showing a recording prohibition flag setting process performed by the management server 20. FIG. 10 is a flow chart showing a process performed by the management server 20 to stop the process of accumulating captured images using the recording prohibition flag.

(Recording prohibition flag setting process)
(Step S301)
In FIG. 9, when the control unit 21 of the management server 20 receives the “recording prohibition instruction” (YES), the process proceeds to step S302. This “recording prohibition instruction” is transmitted through the staff terminal 40 functioning as a controller or the recording prohibition switch 14. Specifically, this is the case where the care staff 80 inputs a recording prohibition instruction through the operation screen of the staff terminal 40, or the user (including the care staff 80 and the watching target 70) operates the recording prohibition switch 14. ..

(Step S302)
The control unit 21 sets the recording prohibition flag stored in the internal memory to “ON”. The recording prohibition flag is set for each target observation area (room number) or each detection unit 10. For example, when the recording prohibition instruction is received from the recording prohibition switch 14 installed in the same room by the short-range communication standard wireless communication via the communication unit 12 of the detection unit 10 in the room 101, the recording prohibition flag is set to , Room 101. Similarly, when the staff terminal 40 receives a recording prohibition instruction from the detection unit 10a of the room 101 by wireless communication of the short-range wireless communication standard, the recording prohibition fluff is associated with the room 101. When transmitting the recording prohibition flag from the staff terminal 40 via the network 50, the room number (detection unit ID) for stopping the accumulation process may be selected on the operation screen for inputting an instruction. ..

(Step S303)
When the control unit 21 receives the “cancellation instruction” (YES), the process proceeds to step S304. As for the cancellation instruction, for example, when the recording prohibition instruction is transmitted by the recording prohibition switch 14 in step S301 and the recording prohibition switch 14 (in the same room) is operated again, this signal is treated as the cancellation instruction. Alternatively, when a cancellation signal is transmitted from the staff terminal 40 that has issued the recording prohibition instruction in step S301, it is also treated as a cancellation instruction.

(Step S304)
The control unit 21 sets the recording prohibition flag to “OFF” and ends the process (end).

(Stop processing of accumulation processing)
(Step S401)
In FIG. 10, processing using the recording prohibition flag set in FIG. 9 is performed. First, the detection unit 10 (control unit 11) sends the captured image output from the camera 13 in each observation region to the management server 20. The management server 20 loop-records the captured image in the storage unit 23. As will be described later (FIG. 13), this loop recording is configured to be stored in the storage unit on the detection unit 10 side, and in the tagging process described below, the management server 20 captures images for a predetermined time only. May be transferred.

(Step S402)
The detection unit 10 monitors the watching target person 70 in the observation area, that is, on or around the bed 60. When the detection unit 10 detects a new event, the detection unit 10 transmits information about the detected event (event information) to the management server 20. Note that this processing corresponds to step S120 in FIG. Further, as described above, the process of step S402 may be configured to be performed on the control unit 21 side.

(Step S403)
The management server 20 (control unit 21) waits for the reception of the event information from the detection unit 10, and if the event information is received (YES), the process proceeds to step S404.

(Step S404)
The control unit 21 of the management server 20 updates the event list (see FIG. 7) stored in the storage unit 23. A unique event ID is automatically assigned to each event. This process corresponds to step S140 in FIG.

(Step S405)
The control unit 21 confirms the status of the recording prohibition flag associated with the observation area (room number) in which the event has occurred, and if the status is “ON”, the processing ends (END). In this case, since the accumulation process is stopped, the captured image is not recorded even if the event is unintentionally detected (erroneous detection). On the other hand, if “OFF”, the process proceeds to step S406. This recording prohibition flag is set in the process of FIG.

(Step S406)
The management server 20 tags the recorded video in the observation area where the event in which the loop recording is performed in the storage unit 23 occurs. The captured images tagged are permanently stored. In addition, the captured image includes an image at the time of occurrence of the event.

(Step S407)
The captured image tagged in step S406 is associated with the event ID. The processes of steps S406 and S407 correspond to step S150 of FIG.

(Step S408)
In step S403, the control unit 21 sends to all staff members who are logged in, or to all staff members of a specific group associated with the event occurrence location (room number), for example, in the case of a room on the first floor, all staff members of the 1F charge group. Notify the event that occurred.

As described above, according to the first embodiment, when the recording prohibition instruction is received from the controller, the management server 20 sets the recording prohibition flag to ON, and while the recording prohibition flag is ON, the camera 13 The process of accumulating the photographed image obtained by the above in the storage unit 23 is stopped. As a result, it is possible to prevent the photographed image from being permanently stored, prevent the photographed image from being left carelessly, and, in turn, perform the operation in consideration of the privacy of the watching target person 70. In particular, the event determination for detecting the attention behavior (fall, fall) of the watching target person 70 in the observation area basically operates continuously. While the event determination is operating, the captured image storage processing is stopped with priority over the captured image storage processing that accompanies this determination, so that attention behavior is generated while protecting the privacy of the watching target person 70. You can monitor. Further, while the recording is prohibited, the generated event (mainly erroneous detection) is not notified to the care staff 80, so that unnecessary notification due to erroneous detection may cause an accident such as going to the place of occurrence. It is possible to reduce the burden on the care staff 80 due to the trouble of checking the situation.

(Second embodiment)
In the first embodiment, the recording prohibition flag is simply set by an input instruction from the controller, but in the second embodiment described below, the situation in which the recording prohibition instruction is transmitted is recorded. At the same time, the recording prohibition (stop of storage processing) is automatically released (storage processing is restarted) after a predetermined time has elapsed. FIG. 11 is a flowchart showing a recording prohibition flag setting process performed by the management server 20 according to the second embodiment. FIG. 12A is an example of a status list recording the recording status, and FIG. 12B is an example of an event list following FIG. 7. Note that the second embodiment is the same as the first embodiment except for the processes of FIG. 11 and FIG. 12 including the process of FIG.

(Steps S501, S502)
As shown in FIG. 11, when the control unit 21 of the management server 20 receives the “recording prohibition instruction” (YES), the process proceeds to step S502, and the recording prohibition flag is set to “ON”. These processes basically correspond to steps S301 and S302 of FIG. 9, but in step S502, the sender ID (MAC address or the like) is recorded. Although the description of the process of step S303 (“release instruction reception”) of FIG. 9 is omitted in FIG. 11, it can be inserted at any position between step S502 and step S509.

(Step S503)
The control unit 21 identifies the source that has transmitted the instruction in step S501. If it is transmitted by the recording prohibition switch 14 in the observation area (YES), the process proceeds to step S504, and if it is performed from the staff terminal 40 (NO), the process proceeds to step S505.

(Step S504)
The control unit 21 stores in the storage unit 23 a captured image for a predetermined time including the time (time) when the instruction is received in step S501. For example, it is a moving image having a length of 30 seconds to 60 seconds, and is a moving image from a time point several seconds before the time point of the reception. Alternatively, a plurality of still images (for example, several images at 1 second intervals) including the time of reception may be stored.

As described above, when the recording prohibition instruction is transmitted from the recording prohibition switch 14 provided in the observation area in the room, the captured image at the transmission time point (reception time point) is left to be managed later as necessary. By confirming the captured image, a person or the like can identify the user who made the call.

(Step S505)
The control unit 21 stores the terminal ID of the staff terminal 40 (unique identifier given to each staff terminal 40) that received the instruction in step S501 in the storage unit 23 in association with the received time. Thereby, the care staff 80 who has issued the recording prohibition instruction can be specified.

(Step S506)
Steps S506 and S507 are processing relating to automatic cancellation. The control unit 21 activates the timer starting from the time point when the recording prohibition instruction is received in step S501, and when the timer reaches the predetermined time t1, notifies the user of a cancellation advance notice alert. The alert can prevent the user from unintentionally restarting the accumulation process.

This alert may be a voice (for example, "cancel the recording prohibition in 30 seconds") that informs the restart of the accumulation process that was stopped by the speaker of the voice input/output unit 16, or it may be a buzzer sound. Good. Also, the blinking state of the LED in the sensor box may be changed as an alert (blinking at a shorter cycle). Further, if a recording prohibition instruction is received from the staff terminal 40, the alert may be sent from the staff terminal 40 that sent the alert together with or instead of the alert by the speaker. For example, the control unit 21 transmits, to the staff terminal 40 by wireless communication, alert information that gives advance notice of cancellation. Then, the staff terminal 40 that has received the alert information sends an alert to the care staff 80 by voice or vibration of a small motor (not shown) to which an eccentric weight is attached.

(Step S507)
The control unit 21 determines whether or not the timer has passed the predetermined time t2 (where t2>t1), and if the timer has passed (YES), the process proceeds to step S508. Here, the predetermined time t2 is, for example, 10 minutes or 20 minutes, and the predetermined time t1 is a time shorter than the predetermined time t2 by several tens of seconds. It should be noted that, before the predetermined time t2 elapses, the accumulation process stop may be extended if there is a user's extension instruction by an operation to the controller. For example, when the recording prohibition switch 14 is pressed for a long time or a second switch (not shown) of the recording prohibition switch 14 is operated after notifying the alarm of the cancellation notice, the control unit 21 receiving this notification receives the alarm. , The timer is reset by handling it as an instruction to extend the accumulation process.

(Step S508)
The control unit 21 sets the recording prohibition flag to OFF and ends the processing (END).

Hereinafter, with reference to FIG. 12, the data processing performed in the above-described processing of FIG. 11 will be described. As shown in FIG. 12A, in the status list of the recording status, the status ID that is automatically given as a primary key, the sender ID (detection unit ID or staff terminal ID), and the room for which recording is prohibited The number, the target person, the input command (recording status), the reception date and time (time), and the recorded image data are included. The sender ID is the detection unit ID (recording prohibition switch 14) or the staff terminal ID that gave the instruction in step S501. The recorded image data is captured image data of a moving image or a still image stored in the process of step S504. In the status ID 701, the fact that the "recording prohibition instruction" is transmitted from the staff terminal ID "40a" is recorded as the room number "101" for which the accumulation process is to be stopped. In the status ID 702, it is recorded that the predetermined time t2 (10 minutes) has passed from the reception time of the status ID 701, and the status is automatically released (corresponding to YES in step S507). Further, in FIG. 12B, event IDs 016 and 017 surrounded by a broken line frame are events detected while the accumulation process between the status IDs 701 and 702 in FIG. 12A is stopped. Event IDs 016 and 017 detected during this period are recorded in the event list. However, during this period, an event that has occurred in the target room is processed so as not to notify the staff terminal 40 of the care staff 80, so the status is recorded as “not notified”. Moreover, since the recording of image data is prohibited, the recorded image is “none”, and the captured image is not permanently recorded.

Also, the status ID 703 has the same contents as the status ID 701. However, in the status ID 703, since the recording prohibition instruction is received from the recording prohibition switch 14 of the detection unit 10b in the room 102, the transmission source has the detection unit ID “10b. Is recorded. Note that, at the time of FIG. 12A, the suspension of the accumulation process due to the recording prohibition instruction with the status ID 703 continues. As described above, the captured image (i016) is associated with the status ID 703 and recorded in the image.

The notification of the status ID of the recording status is not sent to the staff terminal 40. However, the staff terminal 40 (other than issuing the recording prohibition instruction) may be notified that the accumulation process is stopped. Alternatively, the staff terminal 40 or the fixed terminal 30 may be allowed to confirm the room number for which the accumulation process is stopped on the resident list screen or the like. Even when the accumulation process is stopped in a room, the camera 13 of the detection unit 10 in the room continues to operate as described above, and the detection unit 10 continues the event determination. doing. However, the streaming reproduction of the live image that can be operated through the operation screen 432 of FIG. 8 regarding the room in which the accumulation process is stopped is prohibited during the period in which the accumulation process is stopped.

As described above, in the second embodiment, the same effects as those of the first embodiment can be obtained, and further the following effects can be obtained. In the second embodiment, the situation in which the recording prohibition instruction is transmitted, that is, the captured image or the staff terminal ID is recorded as information that can identify the user who is the transmission source (steps S504 and S505). With this, even if the recording is temporarily stopped for the purpose of an unjust action, it is possible to identify by whom the action is performed. As a result, a check effect can be expected, and it is possible to prevent the recording from being temporarily stopped for the purpose of improper behavior.

Further, in the second embodiment, the temporary stop of the recording is automatically canceled, so that it is possible to prevent the situation where the event occurrence in the observation region cannot be dealt with for a long time due to the forgetting to cancel.

(Modification)
In the first and second embodiments, the captured images continuously sent from the detection unit 10 are loop-recorded on the management server 20 side, and the loop-captured captured images are accumulated according to the setting of the recording prohibition flag ( It was to switch whether to keep it permanently. In the modified example described below, loop recording is performed on the detection unit 10 side, and a recorded image for a predetermined time is transmitted to the management server 20 in response to the occurrence of an event. FIG. 13 is a flowchart showing a process that is executed by the watching system 1 (the detection unit 10 and the management server 20) according to the modification and that stops the process of accumulating captured images. The modified example is the same as the first embodiment except for FIG. 13, and the description thereof will be omitted. The configuration of the second embodiment may be combined with the modification.

(Stop processing of accumulation processing)
(Steps S601 to S604)
The same processing as steps S401 to S404 in FIG. 10 is performed. As described above, in the modification of FIG. 13, the detection unit 10 loop-records the captured image output from the camera 13 in the memory of its own device. Then, in step S603, the detection unit 10 detects the event and transmits the event information to the management server 20. Then, the management server 20 receiving this in step S604 updates the event list.

(Step S605)
Furthermore, the detection unit 10 extracts a recorded image of a predetermined time (for example, one minute before and after) of the observation area (room) where the event occurred, including the time when the event occurred, and transmits this to the management server 20. To do.

(Step S606)
The same process as step S405 in FIG. 10 is performed. That is, the control unit 21 of the management server 20 confirms the status of the recording prohibition flag associated with the observation area (room number) where the event has occurred, and if the status is “ON”, the process proceeds to step S609. This recording prohibition flag is set in the process of FIG.

(Step S607)
Here, the same processing as steps S406 and S407 in FIG. 10 is performed. Specifically, the control unit 21 of the management server tags the received recorded image and stores it in association with the event ID (permanent storage).

(Step S608)
As in step S408, the control unit 21 notifies all staff members who are logged in or all staff members of a specific group associated with the event occurrence location (room number) of the event that has occurred in step S603.

(Step S609)
Here, the control unit 21 of the management server 20 discards the recorded video received from the detection unit 10 according to the status of the recording prohibition flag. That is, the recorded video is not permanently stored and the process ends (end).

As described above, also in the watching system 1 according to the modified example, the same effect as that of the first embodiment can be obtained. Further, in the first embodiment and the modified example, since the exceptional process regarding the recording inhibition can be completed by the process on the management server 20 side, the program on the detection unit 10 side can be simplified. For example, when the version of the program is upgraded to improve the function or the like, only the program of the management server 20 needs to be updated, and the program on the detection unit 10 side is not affected. Further, the detection unit 10 transmits only the recorded video before and after the event occurrence to the management server 20, so that the communication amount can be reduced.

The configuration of the watching system described above is the main configuration in describing the features of the above-described embodiment, and is not limited to the above-described configuration, and can be variously modified within the scope of the claims. Further, the configuration included in a general watching system is not excluded. For example, the detection unit 10, the management server 20, the fixed terminal 30, and the staff terminal 40 may include components other than the above components, or may not include some of the above components.

Further, in the present embodiment, the management server 20 of the watching system 1 functions as a management unit and the storage unit 23 functions as a storage unit. However, the management server 20 and the storage unit 23 are omitted, and the detection unit 10 includes The functions of may be integrated.

Further, in the above-described embodiment, the detection unit 10, the management server 20, the fixed terminal 30, and the staff terminal 40 have been described as one device. However, the present embodiment is not limited to this. For example, for each configuration, an information processing device that executes various determination processes and a device that executes other processes may be configured separately. In this case, the information processing device and the device that executes other processing are connected by wire or wirelessly.

Further, the processing in the watching system 1 according to the above-described embodiment may include steps other than the steps in the above-described flowchart, or may not include some of the steps described above. Further, the order of steps is not limited to the above embodiment. Furthermore, each step may be combined with other steps and executed as one step, may be included and executed in another step, or may be divided into a plurality of steps and executed.

(Other modifications)
Furthermore, as another example, in the modified example of step S504, or in addition to the processing of step S504, the control unit 11 determines whether a person in the observation region has an image captured by the camera 13 after receiving the recording prohibition instruction. Movement may be detected. Then, when the movement of a person is detected as a starting point, a captured image for a predetermined time (for example, 30 seconds or 1 minute) may be recorded from that point. Further, the process of step S505 may include the process of step S504 (or “variation of step S504”). Specifically, even when the care staff 80 sends a recording prohibition instruction from the living room by Bluetooth communication through the staff terminal 40, the captured image for a predetermined time including the sending time is recorded. By these processes, it is possible to reliably leave the image of the user who issued the recording prohibition instruction.

The means and method for performing various processes in the watching system 1 according to the above-described embodiment can be realized by either a dedicated hardware circuit or a programmed computer. The program may be provided by a computer-readable recording medium such as a USB memory or a DVD (Digital Versatile Disc)-ROM, or may be provided online via a network such as the Internet. In this case, the program recorded on the computer-readable recording medium is usually transferred and stored in a storage unit such as a hard disk. Further, the above program may be provided as independent application software, or may be incorporated as one function into software of the device such as the detection unit.

1 Monitoring System 10 Detecting Section 11 Control Section 12 Communication Section 13 Camera 14 Recording Prohibition Switch 15 Care Call Section 16 Voice Input/Output Section 20 Management Server 21 Control Section 22 Communication Section 23 Storage Section 30 Fixed Terminal 40 Staff Terminal 41 Control Section 42 Wireless Communication Part 43 Display part 44 Input part 45 Voice input/output part 50 Network 51 Access point 60 Bed 70 Person to watch 80 Care staff

Claims (7)

An acquisition unit that acquires a captured image of the observation region obtained by the camera capturing the image,
Based on the captured image acquired, a determination unit that determines the presence or absence of the occurrence of a predetermined event regarding the watching target of the observation region,
When it is determined that the event has occurred by the determination unit, the management unit that stores the event and the captured image of the observation region in which the event has occurred in a storage unit in association with each other,
A reception unit that receives a recording prohibition instruction sent from the controller operated by the user,
The management system, when the management unit receives the recording prohibition instruction, stops the accumulation process of storing the captured image in the storage unit. The controller is provided in the observation area,
The watching system according to claim 1, wherein, when the management unit receives the recording prohibition instruction, the management unit stores the captured image for a predetermined time including the time when the recording prohibition instruction is received in the storage unit. 3. The watching system according to claim 1, wherein the management unit restarts the accumulation process that has been stopped after a predetermined time has elapsed after receiving the recording prohibition instruction. The monitoring system according to claim 3, wherein the management unit causes a speaker arranged in the observation region to output an alert for notifying resumption before the accumulation process is resumed. The staff who responds to the person to be watched carries a staff terminal capable of wireless communication,
The staff terminal functions as the controller,
When the reception unit receives the recording prohibition instruction sent from the staff terminal,
5. The watching system according to claim 1, wherein the management unit associates the terminal ID given to the staff terminal with the time when the recording prohibition instruction is received, and stores the associated time in the storage unit. .. The management unit restarts the accumulation process that has been stopped after a predetermined time has elapsed after receiving the recording prohibition instruction,
The monitoring system according to claim 5, wherein, before resuming the accumulation process, alert information for notifying resumption is transmitted to the staff terminal that has transmitted the recording prohibition instruction. A step (a) of acquiring a photographed image of the observation region obtained by the camera photographing;
A step (b) of determining whether or not a predetermined event related to the watching target person in the observation area has occurred based on the captured image acquired in the step (a);
When it is determined in step (b) that the event has occurred, the step of storing the event and the captured image of the observation region in which the event has occurred in a storage unit in association with each other,
A step (d) of receiving a recording prohibition instruction sent from the controller operated by the user,
When the recording prohibition instruction is accepted in the step (d), a step (e) of stopping the accumulation process of storing the captured image in the storage section,
A control program for causing a computer that controls the watching system to execute processing including the above.