JPWO2020100461A1 - Sensor device of monitored person monitoring support system, monitoring image storage method and monitored person monitoring support system - Google Patents

Abstract

The monitored person monitoring support system, its sensor device, and the monitoring image storage method of the present invention detect a predetermined event related to the monitored person with a sensor device provided corresponding to the monitored person, and the event. When a moving image is generated and the event is detected in the monitored person monitoring support system that notifies the central management device that manages the above and notifies the terminal device of the event detected by the sensor device via the central management device. In the storage, the generated moving image of the predetermined first time including the time when the event is detected is transmitted to the central management device as the event moving image, and the moving image of the predetermined second time longer than the first time is stored. The generated moving image is stored as a saved moving image in a moving image storage unit having a capacity.

Description

The present invention relates to a sensor device of a monitored person monitoring support system for supporting monitoring of a monitored person, a monitoring image saving method for storing the monitored image, and the monitored person monitoring support system.

In recent years, with the entry of a super-aging society, technologies for complementing operations in the nursing industry, long-term care industry, etc. have been researched and developed, and are disclosed in, for example, Patent Document 1.

The nurse call system disclosed in Patent Document 1 is installed in a bed for a patient to call a nurse, and is installed in a nurse station to answer a call by the nurse call slave unit. A nurse call system having a nurse call master unit, in which a camera that images a patient on the bed from above the bed and a state in which the patient is upright and the patient is away from the bed from the images captured by the camera. The nurse call master unit has a state determining means for determining the occurrence of at least one of them and outputting a caution state generating signal, and the nurse call master unit has a notification means for performing a notification operation in response to the caution state generating signal. The nurse call master unit has a monitor for displaying an image, an image control unit for displaying the image captured by the camera on the monitor when the attention state generation signal is received, and an image storage unit for storing the image. The image control unit stores the image captured by the camera in the image storage unit in accordance with the display of the image captured by the camera on the monitor.

Since the nurse call system disclosed in Patent Document 1 stores the image of the patient who performed the call operation, the state of the patient at the time of calling can be grasped later, which is useful for nursing work ([0030] of Patent Document 1). See paragraph). However, the nurse call system disclosed in Patent Document 1 stores the captured image only when it is determined that at least one of the state in which the patient is upright and the state in which the patient is away from the bed occurs. Therefore, in the nurse call system disclosed in Patent Document 1, when the determination of the occurrence is mistaken, that is, when the determination cannot be made when the occurrence should be determined (in the case of misreporting). However, there is a disadvantage that the captured image that should be originally saved is not saved. In addition, in the work of the nursing industry, the long-term care industry, etc., although it is not a false report, the situation of the patient etc. may be confirmed at a later date.

Japanese Unexamined Patent Publication No. 2014-90913

The present invention has been made in view of the above circumstances, and an object of the present invention is a sensor device and a monitoring image of a monitored person monitoring support system that can save an image at the time of occurrence while also saving an image at the time of misreporting. The purpose is to provide a storage method and the monitored person monitoring support system.

In order to realize the above-mentioned object, the monitored person monitoring support system, its sensor device, and the monitoring image storage method, which reflect one aspect of the present invention, provide the monitored person with a predetermined event related to the monitored person. Monitored person monitoring that detects by a corresponding sensor device, notifies the central management device that manages the event, and notifies the terminal device of the event detected by the sensor device via the central management device. In the support system, when a moving image is generated and the event is detected, the generated moving image of a predetermined first time including the time when the event is detected is transmitted as an event moving image to the central management device, and the first The generated moving image is stored as a storage moving image in a moving image storage unit having a storage capacity for storing a moving image of a predetermined second time longer than one hour.

The advantages and features provided by one or more embodiments of the invention are fully understood from the detailed description and accompanying drawings provided below. These detailed descriptions and accompanying drawings are given by way of example only and are not intended as a limited definition of the present invention.

It is a figure which shows the structure of the monitored person monitoring support system in embodiment. It is a figure which shows the structure of the sensor device in the said | monitored person monitoring support system. It is a figure which shows the structure of the management server apparatus in the said monitored person monitoring support system. It is a figure which shows the structure of the event moving image information table stored in the management server apparatus. It is a figure which shows the structure of the saved moving image information table stored in the management server apparatus. It is a flowchart which shows the operation about the storage of the stored moving image in the sensor device. It is a flowchart which shows the operation about the transmission of the saved moving image in the sensor device. It is a sequence diagram which shows the operation about the event notification in the monitored person monitoring support system. It is a flowchart which shows the operation about the transmission of the event moving image in the sensor device.

Hereinafter, one or more embodiments of the present invention will be described with reference to the drawings. However, the scope of the invention is not limited to the disclosed embodiments. It should be noted that the configurations with the same reference numerals in each figure indicate that they are the same configurations, and the description thereof will be omitted as appropriate. In the present specification, when they are generically referred to, they are indicated by reference numerals without subscripts, and when they refer to individual configurations, they are indicated by reference numerals with subscripts.

The monitored person monitoring support system in the embodiment supports the monitoring of the monitor (user) who monitors the monitored person (watching target person, target person) which is the monitoring target (watching target) to be monitored (watched). Is what you do. In the present embodiment, the monitored person monitoring support system is provided in response to the monitored person, and is communicably connected to a sensor device that detects a predetermined event related to the monitored person and the sensor device. A central management device that receives notification of an event detected by the sensor device and manages the event, and a notification of an event detected by the sensor device via the central management device that is communicably connected to the central management device. Equipped with a terminal device to receive. Then, in the present embodiment, the monitored person monitoring support system has a predetermined number including an imaging unit that generates a moving image and a time point when the event is detected, which is generated by the imaging unit when the event is detected. It has a moving image transmission processing unit that transmits a 1-hour moving image as an event moving image to the central management device, and a storage capacity for storing a predetermined 2nd hour moving image longer than the 1st hour, and the moving image generated by the imaging unit. It is provided with a moving image storage unit that stores the image as a saved moving image. The terminal device may be one type of device, but in the present embodiment, the terminal device is two types of devices, a fixed terminal device and a mobile terminal device. The main difference between these fixed terminal devices and mobile terminal devices is that while fixed terminal devices are operated in a fixed manner, mobile terminal devices are carried and operated by observers (users) such as nurses and caregivers, for example. The fixed terminal device and the mobile terminal device are substantially the same. As an example, a case where the image pickup unit, the moving image transmission processing unit, and the moving image storage unit are provided in the sensor device will be described more specifically below.

FIG. 1 is a diagram showing a configuration of a monitored person monitoring support system in the embodiment. FIG. 2 is a diagram showing a configuration of a sensor device in the monitored person monitoring support system. FIG. 3 is a diagram showing a configuration of a management server device in the monitored person monitoring support system. FIG. 4 is a diagram showing a configuration of an event moving image information table stored in the management server device. FIG. 5 is a diagram showing a configuration of a stored moving image information table stored in the management server device.

The monitored person monitoring support system MS in the embodiment is a system that supports monitoring of the monitored person Ob, and for example, as shown in FIG. 1, one or a plurality of sensor devices SU (SU-1 to SU-4). A management server device SV, a fixed terminal device SP, one or more portable terminal devices TA (TA-1, TA-2), and a private branch exchange (PBX, Private network change) CX. It is connected by wire or wirelessly via a network (network, communication line) NW such as a LAN (Local Area Network) so that it can communicate with each other. The network NW may be provided with repeaters such as repeaters, bridges and routers that relay communication signals. In the example shown in FIG. 1, the plurality of sensor devices SU-1 to SU-4, the management server device SV, the fixed terminal device SP, the plurality of mobile terminal devices TA-1, TA-2, and the premises exchange CX are L2 switches. Concentrators (hubs, HUBs) LS and mixed wired and wireless LANs including access point APs (eg LANs according to the 802.11 standard) NWs are communicatively connected to each other. More specifically, the plurality of sensor devices SU-1 to SU-4, the management server device SV, the fixed terminal device SP, and the private branch exchange CX are connected to the line concentrator LS, and the plurality of mobile terminal devices TA-1 and TA-2 are connected. Is connected to the concentrator LS via the access point AP. Then, the network NW constitutes a so-called intranet by using a group of Internet protocols such as TCP (Transmission Control Protocol) and IP (Internet Protocol).

The premises exchange (line switching machine) CX is connected to the network NW, controls the extension telephones such as outgoing calls, incoming calls, and calls between the mobile terminal devices TAs, and executes the extension telephones between the mobile terminal devices TAs. , For example, is connected to an outside line telephone TL such as a fixed telephone or a mobile phone via a public telephone network PN such as a fixed telephone network or a mobile phone network, and makes, receives, and makes a call between the outside line telephone TL and the mobile terminal device TA. The outside line telephone is controlled between the outside line telephone TL and the mobile terminal device TA to carry out the outside line telephone. The private branch exchange CX is, for example, a digital exchange, an IP-PBX (Internet Protocol Private Branch eXchange), or the like.

The monitored person monitoring support 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 the detection when a predetermined inconvenient event such as an abnormal state occurs in the person. preferable. Therefore, the monitored person monitoring support 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 support system MS is arranged in a plurality of living room RMs in which a plurality of monitored person Obs move in, or in a building of a nursing care facility having a plurality of rooms such as a nurse station. ..

The sensor device SU has a communication function for communicating with other devices SV, SP, TA via the network NW, and notifies a predetermined event (event) related to the monitored person Ob to the management server device SV, which will be described later. This is a device that transmits the event video of the above to the management server device SV and stores the saved video described later. The predetermined event (event) is a predetermined event that needs to be dealt with preferably, and is, for example, a predetermined action and a nurse call in the monitored person Ob in the present embodiment. Therefore, in the present embodiment, the sensor device SU detects a predetermined action in the monitored person Ob, notifies (transmits) the detection result to the management server device SV as an example of the predetermined event, and accepts the nurse call. The nurse call is notified (transmitted) to the management server device SV as another example of the predetermined event, a voice call is made with the terminal devices SP and TA, and an image including a moving image is generated and the terminal is generated. It is a device that delivers a moving image to the devices SP and TA. As shown in FIG. 2, such a sensor device SU includes, for example, an imaging unit 11, a sound input / output unit 12, a nurse call reception operation unit 13, and a sensor-side control processing unit (SU control processing unit) 14. A sensor-side communication interface unit (SU communication IF unit) 15 and a sensor-side storage unit (SU storage unit) 16 are provided.

The imaging unit 11 is a device that is connected to the SU control processing unit 14 and generates an image (image data) under the control of the SU control processing unit 14. The image includes a still image (still image data) and a moving image (moving image data). The image pickup unit 11 is arranged so as to be able to monitor the space (location space, in the example shown in FIG. 1, the living room (room) RM of the arrangement location) where the monitored person Ob, which is the monitoring target to be monitored, is scheduled to be located. The location space is taken as an imaging target from above, an image (image data) that gives a bird's-eye view of the imaging target is generated, and the image of the imaging target (target image) is output to the SU control processing unit 14. Preferably, since it is highly probable that the entire monitored person Ob to be monitored can be imaged, the imaging unit 11 has, for example, a head of the monitored person Ob in a bedding (for example, a bed) on which the monitored person Ob lies. It is arranged so that the image pickup target can be imaged from directly above the preset head position (usually, the pillow arrangement position) that is scheduled to be positioned. Alternatively, for example, the imaging unit 11 is arranged at a substantially central position on the ceiling surface because it is highly probable that the entire location space can be imaged. The sensor device SU uses the image pickup unit 11 to capture an image of the monitored person Ob from above the monitored person Ob, preferably an image immediately above the planned head position or from a substantially central position of the ceiling surface. Preferably, the moving image is acquired.

Such an imaging unit 11 may be a device that generates an image of visible light, but in the present embodiment, it is a device that generates an infrared image so that the monitored person Ob can be monitored even in a relatively dark place. .. In the present embodiment, such an imaging unit 11 is, for example, an imaging optical system that forms an infrared optical image of an imaging target on a predetermined imaging surface, and the light receiving surface is made to coincide with the imaging surface. It is data representing an infrared image in the imaging target by arranging the area image sensor that converts the infrared optical image in the imaging target into an electrical signal and image processing the output of the area image sensor. It is a digital infrared camera including an image processing unit or the like that generates image data, preferably moving image data. In the present embodiment, the imaging optical system of the imaging unit 11 is preferably a wide-angle optical system (so-called wide-angle lens (including a fisheye lens)) having an angle of view capable of imaging the entire living room RM in which the imaging unit 11 is arranged. ..

The sound input / output unit 12 is a circuit for inputting / outputting sound. That is, the sound input / output unit 12 is a circuit that is connected to the SU control processing unit 14 and generates and outputs a sound corresponding to an electric signal representing the sound according to the control of the SU control processing unit 14, and is an external circuit. This is a circuit for acquiring sound and inputting it to the sensor device SU. The sound input / output unit 12 includes, for example, a speaker that converts an electric signal (sound data) of sound into a mechanical vibration signal (acoustic signal) of sound, a microphone that converts a mechanical vibration signal of sound in an audible region into an electric signal, and the like. It is configured with and. The sound input / output unit 12 outputs an electric signal representing an external sound to the SU control processing unit 14, and also converts the electric signal input from the SU control processing unit 14 into a mechanical vibration signal of the sound and outputs the signal.

The nurse call reception operation unit 13 is connected to the SU control processing unit 14, and is a switch circuit such as a push button type switch for inputting a nurse call to the sensor device SU. The nurse call reception operation unit 13 may be connected to the SU control processing unit 14 by wire, or may be connected to the SU control processing unit 14 by, for example, short-range wireless communication such as a Bluetooth (registered trademark) standard.

The SU communication IF unit 15 is a communication circuit connected to the SU control processing unit 14 and for performing communication under the control of the SU control processing unit 14. The SU communication IF unit 15 generates a communication signal containing data to be transferred input from the SU control processing unit 14 according to the communication protocol used in the network NW of the monitored person monitoring support system MS, and generates the communication signal. The communication signal is transmitted to other devices SV, SP, and TA via the network NW. The SU communication IF unit 15 receives communication signals from other devices SV, SP, and TA via the network NW, extracts data from the received communication signals, and the SU control processing unit 14 can process the extracted data. It is converted into data in a different format and output to the SU control processing unit 14. The SU communication IF unit 15 is configured to include, for example, a communication interface circuit according to the IEEE802.11 standard or the like.

The SU storage unit 16 is a circuit that is connected to the SU control processing unit 14 and stores various predetermined programs and various predetermined data under the control of the SU control processing unit 14. The various predetermined programs include, for example, a SU control program that controls each unit 11 to 13, 15 and 16 of the sensor device SU according to the function of each unit, and predetermined information processing related to monitoring of the monitored person Ob. A control processing program such as a SU monitoring processing program that executes the above is included. The SU monitoring processing program detects a predetermined action in the monitored person Ob and notifies the detection result to the predetermined terminal devices SP and TA via the management server device SV as an example of the predetermined event (event). When the action detection processing program or the nurse call reception operation unit 13 receives the nurse call, the management server device SV is notified to that effect as another example of the predetermined event, and the SU sound input / output unit 12 or the like is used. A nurse call processing program that makes a voice call with the terminal devices SP and TA, a streaming processing program that distributes the moving image generated by the imaging unit 11 to the terminal device SP and TA that requested the moving image, and imaging. When a SU moving image storage processing program that stores the moving image generated by the unit 11 in the SU storage unit 16 or the event, or in the present embodiment, a preset specific type of event among the plurality of types is detected. , A moving image transmission processing program for transmitting a predetermined first-hour moving image including a time when the specific type of event is detected generated by the imaging unit 11 to the management server device SV as an event moving image, or the plurality of types. A tag information addition processing program that associates predetermined tag information related to the detected event with a saved video described later stored in the SU storage unit when an event of the remaining type other than the specific type is detected. It also includes a SU clock program that measures the time by year, month, day, hour, minute, and second. The various predetermined data include the sensor device identifier (sensor ID), which is an identifier for identifying and identifying the sensor device SU, the communication address of the management server device SV, and the moving image generated by the imaging unit 11. Etc., which includes data necessary for executing each program. The SU storage unit 16 includes, for example, a ROM (Read Only Memory) which is a non-volatile storage element, an EEPROM (Electrically Erasable Programmable Read Only Memory) which is a rewritable non-volatile storage element, and the like. The SU storage unit 16 includes a RAM (Random Access Memory) or the like that serves as a working memory of the so-called SU control processing unit 14 that stores data or the like generated during execution of the predetermined program. Then, in the present embodiment, the SU storage unit 16 functionally includes the first and second ring buffer storage units 161 and 162 of the ring buffer.

The first ring buffer storage unit 161 has a storage capacity (first storage capacity) for storing a predetermined first-hour moving image (first-hour long moving image), and stores the moving image generated by the imaging unit 11. It is a so-called ring buffer. Therefore, each frame (each frame data) in the moving image generated by the imaging unit 11 is sequentially generated in the order of generation from the start address (first start address) of the first ring buffer storage unit 161 to the final address (first final address). ) Is stored, and when the first final address is reached, the data is returned to the first start address and stored. Therefore, after the lapse of the first time after being stored in the first ring buffer storage unit 161, the oldest (oldest) stored moving image frame is overwritten with the moving image frame generated by the imaging unit 11 at this point. Is automatically erased. The first time is set appropriately in advance, for example, 30 seconds, 60 seconds (1 minute), 2 minutes, 3 minutes, and the like.

The second ring buffer storage unit 162 has a storage capacity (second storage capacity) for storing a predetermined second time moving image (second time long moving image) longer than the first time, and is generated by the imaging unit 11. It is a so-called ring buffer that stores the recorded moving image as a saved moving image. Therefore, each frame (each frame data) in the moving image generated by the imaging unit 11 is sequentially generated in the order of generation from the start address (second start address) of the second ring buffer storage unit 162 to the final address (second final address). ) Is stored, and when the second final address is reached, the data is returned to the second start address and stored. Therefore, after the lapse of the second time after being stored in the second ring buffer storage unit 162, the oldest (oldest) stored video frame is overwritten with the video frame stored at this point and automatically. Will be erased. The second time is appropriately set in advance, for example, 1 day, 3 days, 6 days, etc. so that the state of the patient or the like can be confirmed in a moving image at a later date. Then, the moving image generated by the imaging unit 11 may be stored directly from the imaging unit 11 in the second ring buffer storage unit 162 by the control processing unit 14, but in the present embodiment, the control processing unit 14 first stores the moving image. The moving image stored in the ring buffer storage unit 161 is stored in the second ring buffer storage unit 162.

The first and second ring buffer storage units 161 and 162 may be configured by physically arranging the storage elements in a ring shape, respectively, but since it is not realistic, the first ring buffer storage unit 161 may be configured. A storage area (first storage area) is secured in the RAM for the first ring buffer storage unit 161 with the first storage capacity, and it is logical by connecting the first start address and the first final address of this first storage area. Similarly, in the second ring buffer storage unit 162, a storage area (second storage area) is secured in the RAM for the second ring buffer storage unit 162 with a second storage capacity, and the second storage area of the second storage area It is logically constructed by connecting the second start address and the last address.

The SU control processing unit 14 controls each unit 11 to 13, 15 and 16 of the sensor device SU according to the function of each unit, and sends a predetermined event (event) related to the monitored person Ob to the management server device SV. It is a circuit for notifying, transmitting an event video to the management server device SV, and storing a stored video. More specifically, in the present embodiment, the SU control processing unit 14 detects a predetermined action in the monitored person Ob and notifies the management server device SV of the detection result as an example of the predetermined event (notification, (Transmit), accept the nurse call, notify (notify, transmit) the nurse call to the management server device SV as another example of the predetermined event, make a voice call with the terminal devices SP and TA, and make a moving image. An image including the above is generated and the moving image is distributed to the terminal devices SP and TA. When a specific type of event is detected, the event moving image is transmitted to the management server device SV, and the saved moving image is stored. The SU control processing unit 14 includes, for example, a CPU (Central Processing Unit) and peripheral circuits thereof. When the control processing program is executed, the SU control processing unit 14 has a sensor side control unit (SU control unit) 141, an action detection processing unit 142, a nurse call processing unit 143, a streaming processing unit 144, and a sensor-side moving image storage. It functionally includes a processing unit (SU moving image storage processing unit) 145, a moving image transmission processing unit 146, a tag information addition processing unit 147, and a sensor-side clock unit (SU clock unit) 148.

The SU control unit 141 controls each unit 11 to 13, 15 and 16 of the sensor device SU according to the function of each unit, and controls the overall control of the sensor device SU.

The action detection processing unit 142 detects a predetermined action set in advance in the monitored person Ob and notifies the management server device SV of the detection result as an example of the predetermined event. More specifically, in the present embodiment, the predetermined actions include, for example, waking up when the monitored person Ob wakes up, getting out of bed when the monitored person Ob leaves the bedding, and falling when the monitored person Ob falls from the bedding. And, there are four actions of a fall in which the monitored person Ob has fallen. Then, the behavior detection processing unit 142 detects, for example, the head of the monitored person Ob based on the target image captured by the imaging unit 11, and changes the size of the detected head of the monitored person Ob over time. Based on this, the monitored person Ob is detected to get up, get out of bed, fall, and fall. More specifically, first, the location region of the bedding BD, the first threshold value Th1, the second threshold value Th2, and the third threshold value Th3 are stored in advance in the SU storage unit 16 as one of the various predetermined data. The first threshold value Th1 is a threshold value for discriminating between the size of the head in the lying posture and the size of the head in the sitting posture in the region where the bedding BD is located. The second threshold value Th2 is a threshold value for discriminating whether or not the size of the head is in a standing posture in the living room RM excluding the area where the bedding BD is located. The third threshold value Th3 is a threshold value for discriminating whether or not the size of the head in the lying posture in the living room RM excluding the area where the bedding BD is located. Then, the behavior detection processing unit 142 extracts a moving object region from the target image as a region of the person of the monitored person Ob by, for example, the background subtraction method or the frame subtraction method. Next, the behavior detection processing unit 142 uses the extracted moving body region, for example, by Hough transform of a circle or an ellipse, for example, by pattern matching using a prepared head model, or for example, for head detection. The head region of the monitored person Ob is extracted by the neural network learned in. Next, the behavior detection processing unit 142 detects getting up, getting out of bed, falling, and falling from the extracted position and size of the head. For example, in the behavior detection processing unit 142, the position of the extracted head is within the location region of the bedding BD, and the size of the extracted head is the size of the lying posture by using the first threshold value Th1. When the size of the sitting posture changes from one to another over time, it is determined that the person has woken up, and the wake-up is detected. For example, in the behavior detection processing unit 142, the position of the extracted head changes with time from the inside of the bedding BD location area to the outside of the bedding location area, and the size of the extracted head is the second size. When the time changes from a certain size to the size of the standing posture by using the threshold value Th2, it is determined that the person has left the bed and the person has left the bed. For example, in the behavior detection processing unit 142, when the position of the extracted head changes from the inside of the location area of the bedding BD to the outside of the location area of the bedding BD, the size of the extracted head is the first. When the time changes from a certain size to the size of the lying posture by using the three threshold value Th3, it is determined that the person has fallen, and the fall is detected. For example, in the behavior detection processing unit 142, the position of the extracted head is in the living room RM excluding the area where the bedding BD is located, and the size of the extracted head uses the third threshold value Th3. When the time changes from the size of the head to the size of the lying posture, it is determined that the person has fallen, and the fall is detected.

When the predetermined action is detected in this way, the action detection processing unit 142 notifies the event, which contains event information (event information) representing the content of the predetermined event (event) related to the monitored person Ob. The communication signal (first event notification communication signal) of the above is notified to the management server device SV by the SU communication IF unit 15. More specifically, the action detection processing unit 142 has a sensor ID of its own machine, event information representing the content of the event, a time when the predetermined action is detected (detection time), and a target used for detecting the predetermined action. The first event notification communication signal containing the image is transmitted to the management server device SV via the SU communication IF unit 15. The event information is one or more of wake-up, wake-up, fall, fall and nurse call (NC) in the present embodiment, where the behavior detection processing unit 142 has detected wake-up, wake-up, fall and One or more of the falls are accommodated in the first event notification communication signal as the event information. The image may be at least one of a still image and a moving image. In the present embodiment, the still image is first notified, and the moving image is distributed according to the user's request. First, the moving image may be delivered, or the still image and the moving image may be transmitted, and the still image and the moving image may be displayed on the terminal devices SP and TA by splitting the screen.

When the nurse call reception operation unit 13 receives the nurse call, the nurse call processing unit 143 notifies the management server device SV of the first event notification communication signal accommodating the fact as another example of the predetermined event. A voice call is made between the terminal devices SP and TA by using the sound input / output unit 12 and the like. More specifically, when the nurse call reception operation unit 13 is input-operated, the nurse call processing unit 143 uses the sensor ID of its own device, the time when the nurse call is detected (detection time), and the event information. The first event notification communication signal accommodating the nurse call is transmitted to the management server device SV via the SU communication IF unit 15. Then, the nurse call processing unit 143 uses the sound input / output unit 12 and the like to make a voice call with the terminal devices SP and TA by, for example, VoIP (Voice over Internet Protocol).

When the streaming processing unit 144 receives a request for video distribution from the fixed terminal device SP or the mobile terminal device TA via the SU communication IF unit 15, the streaming processing unit 144 sends the request to the fixed terminal device SP or the mobile terminal device TA. , The moving image (for example, a live moving image) generated by the imaging unit 11 is delivered via the SU communication IF unit 15 by streaming reproduction.

The SU moving image storage processing unit 145 stores the moving image generated by the imaging unit 11 in the SU storage unit 16. More specifically, the SU moving image storage processing unit 145 stores the moving image generated by the imaging unit 11 in the first ring buffer storage unit 161 of the SU storage unit 16, and stores the moving image generated by the imaging unit 11. Is stored in the second ring buffer storage unit 162 of the SU storage unit 16. More specifically, first, the SU moving image storage processing unit 145 sequentially generates each frame (each frame data) in the moving image generated by the imaging unit 11 from the first start address of the first ring buffer storage unit 161. It stores up to the first final address, and when it reaches the first final address, it returns to the first start address and stores it. Then, the SU moving image storage processing unit 145 reads out the moving image of the first hour stored in the first ring buffer storage unit 161 every time the first time elapses, and the read out moving image of the first hour is used as the stored moving image. Is stored in the second ring buffer storage unit 162. That is, the SU moving image storage processing unit 145 stores each frame of the moving image generated by the imaging unit 11 in order of generation from the first head address to the first final address of the first ring buffer storage unit 161. When the first final address is reached, the moving image of the first time stored in the first ring buffer storage unit 161 is stored in the second ring buffer storage unit 162 as the stored moving image. Therefore, in the second ring buffer storage unit 162, the moving images of the first time stored in the first ring buffer storage unit 161 every time the first time elapses are sequentially generated in the second ring buffer storage unit 162. 2 From the first address to the second final address is stored, and when the second final address is reached, the second final address is returned and stored.

When the moving image transmission processing unit 146 detects the event, that is, in the present embodiment, a preset specific type of event among the plurality of types, the specific type of event generated by the imaging unit 11 is generated. The moving image of the predetermined first time including the time when the event is detected is transmitted to the management server device SV as an event moving image. As described above, the plurality of types of the event are getting up, getting out of bed, falling, falling and nurse call in this embodiment. The specific type is appropriately preset from among these. In this embodiment, the importance of the event is taken into account and falls and falls are set as the particular type. The event video may be a (past) video that is the first hour back from the time when the specific type of event is detected (detection time), but in the present embodiment, it is before the time when the event is detected. Including a moving image generated by the imaging unit 11 (pre-detection moving image) and a moving image generated by the imaging unit 11 after the time when the event is detected (post-detection moving image). The time lengths of the pre-detection moving image and the post-detection moving image may be the same or different. In one example, when the first time is 60 seconds, each time length is 30 seconds, or from the viewpoint of emphasizing the process leading to the event, the time length of the pre-detection moving image is 45 seconds and after detection. The time length of the video is 15 seconds, or the time length of the pre-detection video is 15 seconds and the time length of the post-detection video is 15 seconds from the viewpoint of emphasizing the confirmation of the monitored person Ob and the observer after the event. 45 seconds. Therefore, in the present embodiment, when the motion detection processing unit 142 detects the fall, the moving image transmission processing unit 146 has a predetermined seventh time (30 seconds in the above example) shorter than the first time from the detection time. After 45 seconds or 15 seconds), the moving image of the first hour stored in the first ring buffer storage unit 161 is read, and the read moving image of the first hour is transmitted to the management server device SV as the event moving image. do. Then, when the motion detection processing unit 142 detects the fall, the moving image transmission processing unit 146 has the first time stored in the first ring buffer storage unit 161 after the lapse of the seventh time from the detection time. The moving image is read, and the read moving image of the first time is transmitted to the management server device SV as the event moving image. In the transmission of this event video, the sensor ID of the own machine, the event information of the event caused by the transmission of the event video, the detection time of the event, and the communication signal (event video notification communication signal) accommodating the event video are managed. It is transmitted to the server device SV.

Further, in the present embodiment, the moving image transmission processing unit 146 transmits the stored moving image stored in the second ring buffer storage unit 162 to the management server device SV. More specifically, the moving image transmission processing unit 146 reads out the stored moving image of the second time stored in the second ring buffer storage unit 162 every time the second time elapses, and stores the read-out second time. The moving image is transmitted to the management server device SV. That is, the moving images of the first time stored in the first ring buffer storage unit 161 each time the first time elapses are sequentially stored from the second head address to the second final address of the second ring buffer storage unit 162. When the second final address is reached, the moving image transmission processing unit 146 reads out the stored moving image of the second time stored in the second ring buffer storage unit 162, and manages the read-out stored moving image of the second time. Send to the server device SV. In the transmission of the stored moving image, the sensor ID of the own machine and the communication signal (stored moving image notification communication signal) accommodating the stored moving image of the second time are transmitted to the management server device SV.

When the tag information addition processing unit 147 detects an event of the remaining type other than the specific type among the plurality of types, the SU storage unit 16 stores predetermined tag information related to the detected event. It is associated with the saved video that has been saved. As described above, in the present embodiment, the particular types are falls and falls, so the remaining types are wake-up, wake-up and nurse call. The tag information is appropriately set in advance, and for example, in the present embodiment, it is the event information and the detection time of the detected event. Therefore, when the tag information giving processing unit 147 detects wake-up by the action detection processing unit 142, the tag information assigning processing unit 147 associates the wake-up and its detection time with the saved video as the tag information, and when the wake-up is detected by the behavior detection processing unit 142. When the nurse call is detected by the nurse call processing unit 143, the nurse call and its detection time are associated with the saved video as the tag information. In the association of the tag information, for example, the electronic file in which the tag information is stored is stored in the SU storage unit 16, and the stored moving image for the second time stored in the second ring buffer storage unit 162 is stored in the management server device as described above. When transmitted to the SV, the electronic file of the tag information is further accommodated in the stored video notification communication signal, and after the transmission of the stored video notification communication signal, the electronic file of the tag information is deleted from the SU storage unit 16. NS. Alternatively, for example, the tag information is incorporated into the data of the stored moving image and stored. The moving image data that can accommodate such metadata (tag information in this embodiment) is, for example, in the mp4 format.

The SU clock unit 148 measures the time by year, month, day, hour, minute, and second.

In FIG. 1, the first to fourth sensor devices SU-1 to SU-4 are shown as an example, and the first sensor device SU-1 is Mr. A Ob-1 who is one of the monitored persons Ob. The second sensor device SU-2 is arranged in the living room RM-2 (not shown) of Mr. B Ob-2, who is one of the monitored persons Ob, and is arranged in the living room RM-2 (not shown). The third sensor device SU-3 is arranged in the living room RM-3 (not shown) of Mr. C Ob-3, who is one of the monitored persons Ob, and the fourth sensor device SU-4 is the monitored person. It is arranged in the living room RM-4 (not shown) of Mr. D Ob-4, who is one of the Obs.

In this embodiment, the first hour, the predetermined third hour that is equal to or greater than the first hour and less than the second hour, and the predetermined fourth hour that is equal to or less than the third hour are the same. In the case of the first time, the first ring buffer storage unit 161 stores a storage capacity for storing a moving image of a predetermined third time that is the first time or more and less than the second time. It corresponds to an example of a storage unit of a ring buffer that has and stores a moving image generated by the imaging unit. The second ring buffer storage unit 162 has a storage capacity for storing a moving image of a predetermined second time longer than the first time, and is an example of a moving image storage unit that stores the moving image generated by the imaging unit as a saved moving image. Equivalent to. The SU moving image storage processing unit 145 reads out the moving image of the 4th hour stored in the storage unit of the ring buffer every time the predetermined 4th hour of the 3rd time or less elapses, and reads out the reading moving image of the 4th hour. Corresponds to an example of a moving image storage processing unit that stores the stored moving image in the moving image storage unit.

The management server device SV has a communication function for communicating with other devices SU, TA, and SP via the network NW, and when the sensor device SU notifies the predetermined event, the information regarding the monitoring of the monitored person Ob ( Monitoring information (in the present embodiment, for example, the predetermined event (type of predetermined action detected by the sensor device SU or a nurse call received by the sensor device SU), an image (still image and moving image) of the monitored person Ob, and The detection time, etc.)) is managed, the predetermined event is notified (re-notification, re-notification, transmission) to the predetermined terminal device SP, TA, and the request of the client (terminal device SP, TA, etc. in the present embodiment) is performed. This is a device that provides the client with data according to the above and manages the entire monitored person monitoring support system MS. Then, in the present embodiment, the management server device SV also manages the event video and the stored video received from the sensor device SU. As shown in FIG. 3, such a management server device SV includes, for example, a server-side communication interface unit (SV communication IF unit) 21, a server-side control processing unit (SV control processing unit) 22, and a server-side storage unit. (SV storage unit) 23 is provided.

Like the SU communication IF unit 15, the SV communication IF unit 21 is a communication circuit connected to the SV control processing unit 22 and for performing communication under the control of the SV control processing unit 22. The SV communication IF unit 21 is configured to include, for example, a communication interface circuit according to the IEEE802.11 standard or the like.

The SV storage unit 23 is a circuit that is connected to the SV control processing unit 22 and stores various predetermined programs and various predetermined data under the control of the SV control processing unit 22. The various predetermined programs include, for example, an SV control program that controls each unit 21 and 23 of the management server device SV according to the function of each unit, and predetermined information processing related to monitoring of the monitored person Ob. A monitoring processing program, an SV video storage processing program that executes predetermined storage processing related to storage (recording) of event videos and stored videos received from the sensor device SU, an SV clock program that measures time by year, month, day, hour, minute, and second. A control processing program is included. The various predetermined data include a server identifier (server ID) for identifying the management server device SV of the own machine and identifying the management server device SV, the monitoring information of the monitored person Ob, and the predetermined predetermined data. Inter-device information representing information between devices SU, SP, TA such as notification destination of an event (event), sensor information related to sensor device SU, terminal information related to terminal devices SP, TA, event video, stored video, etc. Contains the data required to execute each program of. In order to store each of these monitoring information, inter-device information, sensor information, terminal information, event video, and stored video, the SV storage unit 23 includes a monitoring information storage unit 231, an inter-device information storage unit 232, and a sensor information storage unit 233. , The terminal information storage unit 234, the event moving image storage unit 235, and the stored moving image storage unit 236 are functionally provided.

The SV monitoring information storage unit 231 stores the monitoring information of the monitored person Ob transmitted and received to and from each of the devices SU, SP, and TA. More specifically, in the present embodiment, the SV monitoring information storage unit 231 has the sensor ID and event information as the monitoring information based on each information stored in the communication signal such as the first event notification communication signal. (Event information, getting up, getting out of bed, falling, falling and nurse call in this embodiment), detection time, target image, communication address of the sensor device SU as the acquisition destination of the live video, and whether or not there is a response (whether or not there is a response reception). It is stored in association with each other. The presence or absence of the countermeasure indicates that the observer who handles the terminal devices SP and TA has the intention to deal with (response, action, measure) the event information stored in the communication signal received by the terminal devices SP and TA. This is information indicating whether or not the terminal device SP or TA has accepted the signal.

In the present embodiment, the inter-device information storage unit 232 indicates the notification destination (re-notification destination, re-notification destination, transmission destination) of the first event notification communication signal or the like transmitted from the sensor device SU as the inter-device information. , The correspondence between the sensor ID that is the source and the terminal ID that is the notification destination (re-notification destination) (notification destination correspondence), and the IDs (sensor ID, terminal ID) of each device SU, SP, TA and their It stores the correspondence relationship with the communication address (communication address correspondence relationship) and the like. The terminal ID is a terminal identifier for identifying the terminal devices SP and TA and identifying the terminal devices SP and TA.

Each of the sensor ID, the server ID, and the terminal ID may be, for example, a serial number consisting of a predetermined symbol string or the like, or may be, for example, a communication address (in this case, the communication address correspondence relationship can be omitted).

The sensor information storage unit 233 stores the sensor information. In the present embodiment, the sensor information is information about the sensor device SU, and is information in which the sensor ID of the sensor device SU and the monitored person name of the monitored person Ob are associated with each other.

In the present embodiment, the terminal information storage unit 234 is a login observer indicating a monitor (user) who is logged in to the terminal device SP, TA (a monitor who handles the terminal device SP, TA) as the terminal information. It stores information and monitor work information that indicates the work status (work shift, working hours) of the monitor.

The event video storage unit 235 stores the event video. In the present embodiment, the event video storage unit 235 stores an electronic file of the event video and predetermined attribute information (event video attribute information) in the event video. In the present embodiment, the event moving image attribute information is stored in the event moving image storage unit 235 in a table format, for example, as shown in FIG. The event video attribute information table IT shown in FIG. 4 includes a sensor ID accommodated in the event video notification communication signal, event information and detection time, and a file name of the event video accommodated in the event video notification communication signal (event video file). Name) A sensor ID field 2351, an event field 2352, a detection time field 2353, and an event video file name field 2354 for registering each are provided, and a record is provided for each event video (event video file name). By referring to the event video attribute information, the monitored person (sensor ID) related to the event video, the type of detected event (event information), and the detection time can be recognized (who caused what event and when). can). In the detection time field 2353, the reception time of the received event video notification communication signal may be registered instead of the detection time.

The stored moving image storage unit 236 stores the stored moving image. In the present embodiment, the stored moving image storage unit 236 stores the electronic file of the stored moving image and the predetermined attribute information (stored moving image attribute information) in the stored moving image. In the present embodiment, the stored moving image attribute information is stored in the stored moving image storage unit 236 in a table format, for example, as shown in FIG. In the saved video attribute information table LT shown in FIG. 5, the sensor ID stored in the saved video notification communication signal and the file name (saved video file name) of the saved video stored in the saved video notification communication signal are registered. It has a sensor ID field 2361 and a saved video file name field 2364, and has a record for each saved video (saved video file name). Then, in the present embodiment, the case where the tag information is stored in the stored video notification communication signal is considered, and the stored video attribute information table LT further includes the event information and the event information in the tag information stored in the stored video notification communication signal. An event field 2362 and a detection time field 2363 for registering each detection time are provided. In the present embodiment, in order to erase the saved video after a lapse of a predetermined time, when the tag information is not included in the saved video notification communication signal, the detection time field 2363 contains the stored video notification communication signal. The reception time is registered. Further, even when the tag information is included in the stored video notification communication signal, the reception time of the stored video notification communication signal may be registered in the detection time field 2363 instead of the detection time. By referring to the saved video attribute information, the monitored person (sensor ID) and the reception time related to the saved video can be recognized, and if the tag information is included in the saved video notification communication signal, the saved video is further described. The type of detected event (event information) and the detection time related to the above can be recognized.

The SV control processing unit 22 controls each unit 21 and 23 of the management server device SV according to the function of each unit, and when the sensor device SU notifies the predetermined event, the SV control processing unit 22 monitors the monitored person Ob. The monitored person monitoring support system manages information, notifies the predetermined event to the predetermined terminal devices SP and TA (re-notification, re-notification, transmission), and provides the client with data according to the client's request. It is a circuit for managing the entire MS. Then, in the present embodiment, the SV control processing unit 22 also manages the event video and the stored video received from the sensor device SU. The SV control processing unit 22 includes, for example, a CPU and its peripheral circuits. When the control processing program is executed, the SV control processing unit 22 includes a server-side control unit (SV control unit) 221, a monitoring processing unit 222, a server-side video storage processing unit (SV video storage processing unit) 223, and a server. A side clock unit (SV clock unit) 224 is functionally provided.

The SV control unit 221 controls each unit 21 and 23 of the management server device SV according to the function of each unit, and controls the entire management server device SV.

When the monitoring processing unit 222 receives the notification of the predetermined event from the sensor device SU, it manages the monitoring information regarding the monitoring of the monitored person Ob, and notifies the predetermined event to the predetermined terminal devices SP and TA. .. More specifically, when the monitoring processing unit 222 receives the first event notification communication signal from the sensor device SU, the monitoring information regarding the monitoring of the monitored person Ob contained in the received first event notification communication signal. Is stored (recorded) in the SV monitoring information storage unit 231. The monitoring processing unit 222 stores the notification destinations (re-notification destination, transfer destination, transmission destination) corresponding to the sensor device SU that transmitted the received first event notification communication signal in the inter-device information storage unit 232. A second event notification communication signal is generated based on the selection (search) from the notification destination correspondence relationship, and the generated second event notification communication signal is transmitted by the SV communication IF unit 21. The selection (search processing) of the terminal device SP and TA of the notification destination is performed based on the sensor ID corresponding to the sensor device SU that has transmitted the received first event notification communication signal. When the event information contained in the first event notification communication signal is the predetermined action (one or more of getting up, getting out of bed, falling and falling), the second event notification communication signal includes a second event information. 1 The communication address corresponding to the sensor device SU having the sensor ID accommodated in the first event notification communication signal is accommodated as the download destination of the sensor ID, the event information and the target image, and the moving image accommodated in the event notification communication signal. Will be done. When the event information accommodated in the first event notification communication signal is the nurse call, the second event notification communication signal contains the sensor ID and event information accommodated in the first event notification communication signal. Will be done.

The SV moving image storage processing unit 223 executes a predetermined storage process regarding storage (recording) of the event moving image and the stored moving image received from the sensor device SU.

More specifically, first, when the event video notification communication signal is received, the SV video storage processing unit 223 stores the event video accommodated in the received event video notification communication signal in the event video storage of the SV storage unit 23. It is stored in the part 235. If the electronic file of the event video does not have a file name (event video file name), the SV video storage processing unit 223 first receives a predetermined file name (for example, a code string indicating that the event video is an event video). The event video is stored in the event video storage unit 235 with a file name or the like consisting of serial numbers assigned in order from the event video. Then, the SV video storage processing unit 223 newly adds a record to the event video attribute information table IT stored in the event video storage unit 235, and the sensor ID field 2351, the event field 2352, and the detection time in the added record. The sensor ID, event information, and detection time accommodated in the received event video notification communication signal are registered in each of the fields 2353, and the received event video notification communication is entered in the event video file name field 2354 in the added record. Register the event video file name of the event video stored in the signal.

On the other hand, when the stored video notification communication signal is received, the SV video storage processing unit 223 stores the stored video accommodated in the received stored video notification communication signal in the stored video storage unit 236 of the SV storage unit 23. If the electronic file of the saved video does not have a file name (saved video file name), the SV video storage processing unit 223 first receives a predetermined file name (for example, a code string indicating that the stored video is a saved video). The saved moving image is stored in the saved moving image storage unit 236 with a file name or the like consisting of serial numbers assigned in order from the event moving image. Then, the SV video storage processing unit 223 newly adds a record to the stored video attribute information table LT stored in the saved video storage unit 236, and the received event video is entered in the sensor ID field 2351 of the added record. The sensor ID accommodated in the notification communication signal is registered, and the saved moving image file name of the saved moving image accommodated in the received saved moving image notification communication signal is registered in the saved moving image file name field 2364 in the added record. Then, when the tag information is included in the received event video notification communication signal, the SV video storage processing unit 223 receives the reception in each of the event field 2362 and the detection time field 2363 in the newly added record. The event information and the detection time in the tag information stored in the saved video notification communication signal are registered, and when the tag information is not stored in the received event video notification communication signal, the SV video storage processing unit 223 , The reception time of the received saved moving image notification communication signal is registered in the detection time field 2363 in the newly added record.

Further, in the present embodiment, the SV video storage processing unit 223 has a predetermined fifth time longer than the second time from the reception time when the event video is received from the sensor device SU or the detection time of the event related to the event video. After the lapse of time, the event moving image is deleted from the event moving image storage unit 235. More specifically, the SV video storage processing unit 223 registers in the detection time field 2353 in the event video attribute information table IT at a preset time in the day, for example, at midnight when the date is switched. If the fifth time has passed from the detection time or reception time registered in the detection time field 2353 as a result of this reference, the event video file in this record is referenced. The electronic file of the event video having the event video file name registered in the name field 2354 is deleted from the event video storage unit 235, and this record is deleted (erased) from the event video attribute information table IT. The fifth time is appropriately set in advance, for example, 1 month, 3 months, 6 months, etc., by considering the storage period of the event moving image and the like. Then, the SV moving image storage processing unit 223 receives the saved moving image from the sensor device SU or the detection time of the event related to the saved moving image after a predetermined sixth time longer than the second time elapses. The stored moving image stored in the storage unit 236 is deleted from the stored moving image storage unit 236. More specifically, the SV video storage processing unit 223 registers in the detection time field 2363 in the saved video attribute information table LT at a preset time in the day, for example, at midnight when the date is switched. If the sixth time has passed from the detection time or reception time registered in the detection time field 2363 as a result of this reference, the saved moving image file in this record is referenced. The electronic file of the saved moving image having the saved moving image file name registered in the name field 2364 is deleted from the saved moving image storage unit 236, and this record is deleted (erased) from the saved moving image attribute information table LT. The sixth time is appropriately set in advance, for example, 1 month, 3 months, 6 months, etc., by considering the storage period of the stored moving image and the like. The fifth time and the sixth time may be the same as each other, or may be different from each other.

The SV clock unit 224 measures the time in the year, month, day, hour, minute, and second.

As shown by the broken line in FIG. 3, the management server device SV is further connected to the SV control processing unit 22 as needed, and for example, a server-side input unit (SV input unit) for inputting various commands and various data. ) 24, data between the server-side output unit (SV output unit) 25 that outputs various commands and data input by the SV input unit 24 and monitoring information related to monitoring of the monitored person Ob, and the external device. A server-side interface unit (SVIF unit) 26 or the like that performs input / output of the above may be provided.

Such a management server device SV can be configured by, for example, a computer having a communication function.

This management server device SV corresponds to an example of a central processing unit. The SV moving image storage processing unit 223 performs the event moving image after a predetermined fifth time longer than the second time has elapsed from the reception time when the event moving image is received from the sensor device or the detection time of the event related to the event moving image. Corresponds to an example of the event video erasing processing unit that erases from the event video storage unit. Then, the SV moving image storage processing unit 223 said that after a predetermined sixth time longer than the second time has elapsed from the reception time when the stored moving image is received from the sensor device or the detection time of the event related to the saved moving image. It also corresponds to an example of a saved moving image erasing processing unit for erasing a stored moving image stored in a saved moving image storage unit from the stored moving image storage unit.

The fixed terminal device SP includes a communication function for communicating with other devices 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 person to be monitored by inputting predetermined instructions and data given to the management server device SV and the mobile terminal device TA, displaying the monitoring information obtained by the sensor device SU by the notification from the management server device SV, and the like. It is a device that functions as a user interface (UI) of the monitoring support system MS. In the present embodiment, the fixed terminal device SP also displays an event video and a saved video specified by the user. Such a fixed terminal device SP can be configured by, for example, a computer having a communication function.

The mobile terminal device TA has a communication function for communicating with other devices 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 given to the management server device SV and the sensor device SU, displaying the monitoring information obtained by the sensor device SU by notification from the management server device SV, and displaying the monitoring information. It is a device for answering and calling a nurse call by voice call with the sensor device SU. In the present embodiment, the mobile terminal device TA also displays an event video and a stored video specified by the user. Such a mobile terminal device TA can be configured by, for example, a tablet computer having a communication function or a so-called smartphone.

Next, the operation of the monitored person monitoring support system MS in this embodiment will be described. FIG. 6 is a flowchart showing an operation related to storage of a stored moving image in the sensor device. FIG. 7 is a flowchart showing an operation related to transmission of a stored moving image in the sensor device. FIG. 8 is a sequence diagram showing an operation related to event notification in the monitored person monitoring support system. FIG. 9 is a flowchart showing an operation related to transmission of an event moving image in the sensor device.

In such a monitored person monitoring support system MS, each device SU, SV, SP, and TA executes necessary initialization of each part when the power is turned on, and starts its operation. In the sensor device SU, by executing the control processing program, the SU control processing unit 14 includes the SU control unit 141, the action detection processing unit 142, the nurse call processing unit 143, the SU streaming processing unit 144, and the SU moving image storage processing unit 145. , The moving image transmission processing unit 146, the tag information addition processing unit 147, and the SU clock unit 148 are functionally configured. In the management server device SV, the SV control processing unit 22 is functionally configured with the SV control unit 221 and the monitoring processing unit 222, the SV moving image storage processing unit 223, and the SV clock unit 224 by executing the control processing program. ..

First, the processing of the moving image generated by the imaging unit 11 in the sensor device SU will be described. When the sensor device SU starts its operation, the sensor device SU produces each frame (each frame data) in the moving image generated by the imaging unit 11 by the SU moving image storage processing unit 145 of the SU control processing unit 14 in the order of generation. Sequentially, the first ring buffer storage unit 161 stores from the first start address to the first final address, and when the first final address is reached, the first ring buffer storage unit 161 returns to the first start address and stores the data, and so on.

When each frame of the moving image generated by the imaging unit 11 is stored in the first ring buffer storage unit 161 such as this, the SU moving image storage processing unit 145 refers to the first ring buffer storage unit 161 in FIG. It is determined whether or not the storage process has completed its cycle (S11). That is, it is determined whether or not the frame storage process has reached the first final address. As a result of this determination, if the cycle has not been completed (No if the first final address has not been reached), the SU moving image storage processing unit 145 returns the processing to the processing S11. That is, the process S11 is repeated until one cycle is completed. On the other hand, as a result of the determination, when the cycle has been completed (Yes when the first final address has been reached), the SU moving image storage processing unit 145 is stored in the first ring buffer storage unit 161. The one-hour moving image is stored in the second ring buffer storage unit 162 as a saved moving image (S12), and then the process S13 is executed.

In this process S13, the sensor device SU determines whether or not its operation is completed (stopped) by the SU control processing unit 14. As a result of this determination, if the operation is terminated (stopped) (Yes), the sensor device SU ends this process, while if the operation is not terminated (stopped) (No), the sensor device SU ends the operation. SU returns the process to process S11.

Then, when the second ring buffer storage unit 162 stores the moving image of the first time stored in the first ring buffer storage unit 161 as a stored moving image, the SU moving image storage processing unit 145 displays the moving image in FIG. It is determined whether or not the storage process for the second ring buffer storage unit 162 has completed its cycle (S21). That is, it is determined whether or not the storage process for the moving image of the first time has reached the second final address. As a result of this determination, if the cycle has not been completed (No if the second final address has not been reached), the SU moving image storage processing unit 145 returns the processing to the processing S21. That is, the process S21 is repeated until it makes a round. On the other hand, as a result of the above determination, when one cycle is completed (Yes when the second final address is reached), the moving image transmission processing unit 146 of the SU control processing unit 14 sends the second ring buffer storage unit 162 to the second ring buffer storage unit 162. The stored moving image of the second time stored is transmitted to the management server device SV by the saved moving image notification communication signal (S22), and then the process S23 is executed.

In this process S23, the sensor device SU determines whether or not its operation is completed (stopped) by the SU control processing unit 14. As a result of this determination, if the operation is terminated (stopped) (Yes), the sensor device SU ends this process, while if the operation is not terminated (stopped) (No), the sensor device SU ends the operation. The SU returns the process to the process S21.

Each frame of the moving image generated by the imaging unit 11 is stored in the first ring buffer storage unit 161 and the storage process for the first ring buffer storage unit 161 reaches from the first start address to the first final address. After one round, the first-hour moving image (first-hour long moving image) stored in the first ring buffer storage unit 161 is stored in the second ring buffer storage unit 162 as a stored moving image. Then, when the storage process for the second ring buffer storage unit 162 reaches the second final address from the second start address and makes a round, the stored moving image for the second time stored in the second ring buffer storage unit 162 (second). The time-long stored video) is transmitted to the management server device SV as a stored video notification communication signal.

Next, the operation related to event notification in the monitored person monitoring support system MS will be described. In FIG. 8, when the sensor device SU detects an event (C1), the sensor device SU transmits a first event notification communication signal to the management server device SV (C2) in order to notify the detected event. More specifically, when the sensor device SU starts its operation, it operates at each frame or every few frames as follows to detect the predetermined event and detect the predetermined event. Is detected, the first event notification communication signal is transmitted to the management server device SV. The sensor device SU acquires an image (image data) for one frame from the imaging unit 11 as a target image, detects a predetermined action in the monitored person Ob based on the acquired target image, and performs the predetermined action. When detected, in order to notify the predetermined terminal device SP and TA of the detection result, the SU communication IF unit 15 transmits the first event notification communication signal of the action detection accommodating the predetermined action detected as the event information. To send to the management server device SV. During the operation in this way, the sensor device SU determines whether or not the nurse call is being accepted, and when the nurse call is accepted, the sensor device SU notifies the predetermined terminal devices SP and TA of the acceptance of the nurse call. In addition, the sensor device SU transmits the first event notification communication signal of the nurse call detection, which accommodates the received nurse call as the event information, to the management server device SV by the SU communication IF unit 15.

Subsequently, when the first event notification communication signal is received from the sensor device SU (C3), the management server device SV records (stores) the monitoring information by the received first event notification communication signal by the monitoring processing unit 222. (C4), the second event notification communication signal corresponding to the received first event notification communication signal is transmitted to the predetermined terminal devices SP and TA (C5). More specifically, when the monitoring processing unit 222 receives the first event notification communication signal from the sensor device SU via the network NW, the sensor ID and event information and the like accommodated in the received first event notification communication signal and the like. Each piece of information is stored (recorded) in the SV storage unit 23 as monitoring information of the monitored person Ob monitored by the sensor device SU having this sensor ID. Then, the monitoring processing unit 222 generates a second event notification communication signal to the terminal devices SP and TA having the terminal ID corresponding to the sensor ID accommodated in the received first event notification communication signal, and this generation is generated. The second event notification communication signal is transmitted by the SV communication IF unit 21.

Subsequently, when the second event notification communication signal is received from the management server device SV (C6), the terminal devices SP and TA that have received the second event notification communication signal are the sensors accommodated in the second event notification communication signal. Each information such as ID and event information is stored as monitoring information of the monitored person Ob monitored by the sensor device SU having this sensor ID, and the monitoring information is displayed (C7). As a result, the event detected by the sensor device SU is displayed on the predetermined terminal devices SP and TA via the management server device SV.

An observer NS such as a nurse or a caregiver who has referred to the monitoring information inputs a call request to the terminal devices SP and TA in order to make a call, for example. Upon receiving this input, the terminal devices SP and TA transmit a communication signal (call request communication signal) for requesting a call to the sensor device SU having the sensor ID related to the monitoring information being displayed. In response to this call request, the terminal device SP, TA and the sensor device SU are connected so as to be able to make a call by VoIP, and the observer NS makes a call with the monitored person Ob.

Further, for example, in order to refer to the moving image live, the observer NS inputs the moving image request to the terminal devices SP and TA. Upon receiving this input, the terminal devices SP and TA transmit a communication signal (video request communication signal) for requesting a moving image to the sensor device SU having the sensor ID related to the monitoring information being displayed. In response to the request for the moving image, the terminal device SP, TA and the sensor device SU are connected so as to be able to play the moving image by streaming, and the observer NS refers to the moving image displayed on the terminal device SP, TA.

Next, the process related to the transmission of the event moving image in the sensor device SU will be described. While notifying the event by detecting the event as described above, the sensor device SU transmits the event moving image by operating as follows.

In FIG. 9, when an event is detected as described with reference to FIG. 8 (S31, process C1 shown in FIG. 8), the sensor device SU receives the detected event by the moving image transmission process 146 of the SU control processing unit 14. It is determined whether or not the type is a specific type (S32). As a result of this determination, in the case of the specific type (Yes), the sensor device SU sequentially executes each process of the process S34, the process S35, and the process S36 by the moving image transmission process 146 of the SU control processing unit 14. After that, this process ends. On the other hand, as a result of the determination, when it is not the specific type (No, when it is the residual type), the sensor device SU is subjected to the processing S33 by the tag information addition processing unit 147 of the SU control processing unit 14. After execution, this process ends.

In the process S34, in order to generate the event video including the pre-detection video and the post-detection video, the video transmission process 146 functionally generates a timer set in the 7th time in the SU control processing unit 14. Run this generated timer.

In the process S35 following the process S34, the moving image transmission process 146 determines whether or not the timer has timed up. As a result of this determination, if the time is not up (No), the moving image transmission process 146 returns the process to the process S35. That is, the process S35 is repeated until the time is up. On the other hand, if the time is up as a result of the determination (Yes), the moving image transmission process 146 executes the process S36.

In this process S36, the moving image transmission process 146 transmits the event moving image to the management server device SV. More specifically, the moving image transmission process 146 reads the moving image of the first hour stored in the first ring buffer storage unit 161 and uses the read moving image of the first hour as an event moving image as an event moving image notification communication signal. Send to the management server device SV. Therefore, the moving image stored in the first ring buffer storage unit 161 is read out in order to be stored in the second ring buffer storage unit 162 as a stored moving image as described above, while a specific type of event is detected. In this case, it is read out for transmission as an event moving image to the management server device SV. Although it is possible that they match, normally, the moving image read out to be stored as a stored moving image in the second ring buffer storage unit 162 and the moving image read out to be transmitted to the management server device SV as an event moving image are used. ,It does not match.

On the other hand, in the process S33, the tag information addition processing unit 147 associates the predetermined tag information regarding the detected event with the stored moving image stored in the SU storage unit 16. For example, tag information (event information and detection time in this embodiment) is incorporated into the data of the stored moving image and stored.

When an event is detected in this way, if the type of the detected event is the specific type (fall and fall in this embodiment), the event video is the event video notification communication signal and the management server device SV. When the detected event type is the residual type (wake-up, wake-up and nurse call in the present embodiment), the tag information is associated with the stored moving image.

Next, the processing related to the event moving image and the saved moving image in the management server device SV will be described.

Upon receiving the saved video notification communication signal transmitted from the sensor device SU as described above, the management server device SV is accommodated in the received saved video notification communication signal by the SV video storage processing unit 223 of the SV control processing unit 22. The stored moving image is stored in the stored moving image storage unit 236 of the SV storage unit 23. Then, the management server device SV newly adds a record to the saved video attribute information table LT stored in the saved video storage unit 236 by the SV video storage processing unit 223 of the SV control processing unit 22, and this added record. The sensor ID accommodated in the received event video notification communication signal is registered in the sensor ID field 2351 in the above, and the stored video file name field 2364 in the added record is accommodated in the received stored video notification communication signal. Save video Register the video file name to save. Then, when the tag information is included in the received event video notification communication signal, the SV video storage processing unit 223 receives the reception in each of the event field 2362 and the detection time field 2363 in the newly added record. The event information and the detection time in the tag information stored in the saved video notification communication signal are registered, and when the tag information is not stored in the received event video notification communication signal, the SV video storage processing unit 223 , The reception time of the received saved moving image notification communication signal is registered in the detection time field 2363 in the newly added record.

On the other hand, the SV video storage processing unit 223 stores the saved video stored in the saved video storage unit 236 after the lapse of the sixth hour from the reception time of the saved video or the detection time of the event related to the saved video. Erase from part 236. More specifically, the SV video storage processing unit 223 sets the detection time or reception time registered in the detection time field 2363 in the saved video attribute information table LT, for example, at a preset time in a day. If the sixth time has passed from the detection time or the reception time registered in the detection time field 2363 as a reference result, the save video file name field 2364 registered in the save video file name field 2364 in this record is saved. The electronic file of the saved video having the video file name is deleted from the saved video storage unit 236, and this record is deleted from the saved video attribute information table LT.

Further, as described above, when the event video notification communication signal transmitted from the sensor device SU is received, the management server device SV is subjected to the received event video notification communication by the SV video storage processing unit 223 of the SV control processing unit 22. The event moving image accommodated in the signal is stored in the event moving image storage unit 235 of the SV storage unit 23. Then, the management server device SV newly adds a record to the event video attribute information table IT stored in the event video storage unit 235 by the SV video storage processing unit 223 of the SV control processing unit 22, and this added record. In each of the sensor ID field 2351, the event field 2352, and the detection time field 2353 in the above, the sensor ID, the event information, and the detection time accommodated in the received event video notification communication signal are registered, and the event video file in the added record is registered. In the name field 2354, the event video file name of the event video accommodated in the received event video notification communication signal is registered.

On the other hand, the SV video storage processing unit 223 deletes the event video from the event video storage unit 235 after the lapse of the fifth time from the reception time of the event video or the detection time of the event related to the event video. More specifically, the SV video storage processing unit 223 sets the detection time or reception time registered in the detection time field 2353 in the event video attribute information table IT, for example, at a preset time in the day. When the fifth time has passed from the detection time or the reception time registered in the detection time field 2353 as the reference result, the event registered in the event video file name field 2354 in this record is referenced. The electronic file of the event video having the video file name is deleted from the event video storage unit 235, and this record is deleted from the event video attribute information table IT.

In this way, the event moving image is stored in the management server device SV and deleted after the lapse of the fifth hour, and the saved moving image is stored in the management server device SV and deleted after the lapse of the sixth time.

As described above, the monitored person monitoring support system MS, the sensor device SU, and the monitoring image storage method implemented therein in the present embodiment generate the event generated by the imaging unit 11 when an event is detected. While transmitting the moving image of the predetermined first time including the time when the above is detected to the management server device SV as an event moving image, the moving image generated by the imaging unit 11 is stored in the second ring buffer storage unit 162 as a saving moving image. .. Therefore, the event video can be saved by the management server device SV, and the monitored person monitoring support system MS, the sensor device SU, and the monitoring image saving method fail to report as the saved video while saving the image at the time of occurrence. You can also save the image of the time. Therefore, it is possible to verify the event using the event video immediately after the event occurs, and it is also possible to verify the discovered event using the saved video at a later date, and both of these can be efficiently verified.

In the monitored person monitoring support system MS, the sensor device SU, and the monitoring image storage method, the moving image generated by the imaging unit 11 is stored in the first ring buffer storage unit 161 and stored in the first ring buffer storage unit 161. The event moving image is transmitted from the moving image to the management server device SV, and the saved moving image is stored in the second ring buffer storage unit 162. Therefore, the configuration of the monitored person monitoring support system MS, the sensor device SU, and the monitoring image storage method is simplified, and when the state of the patient or the like is confirmed at a later date, the contents of the event video and the storage method are described. The content of the video can be treated with the same value. For example, as evidence, the content of the event moving image and the content of the stored moving image can be treated equally. Further, since the first ring buffer storage unit 161 is a ring buffer, the monitored person monitoring support system MS, the sensor device SU, and the monitoring image storage method can be used with the memory element having the minimum storage capacity for storing the moving image of the first time. The oldest (oldest) stored moving image frame is overwritten with the moving image frame generated by the imaging unit at this point after the first hour has passed since it was stored in the first ring buffer storage unit 161. And can be erased automatically.

In the above-mentioned monitored person monitoring support system MS, sensor device SU, and monitoring image storage method, since the second ring buffer storage unit 162 is a ring buffer, the memory element having the minimum storage capacity for storing the moving image of the second time is used. The monitored person monitoring support system MS, sensor device SU, and monitoring image storage method can be configured, and the oldest (oldest) stored moving image is stored in the second ring buffer storage unit 162 for the second time. The frame is overwritten with the frame of the video stored at this point and can be deleted automatically.

The monitored person monitoring support system MS, the sensor device SU, and the monitoring image saving method can be referred to by the management server device SV by saving the event video related to a specific type of event in the management server device SV. The videos related to the types of events can be referred to in the saved videos based on the tag information.

In the above-described embodiment, when the moving image of the first time from the first ring buffer storage unit 161 is stored in the second ring buffer storage unit 162 as a storage moving image, the moving image of the first hour is stored with the same image quality. However, it may be stored after changing the image quality. For example, the stored moving image is stored in the first ring buffer storage unit 161 to the second ring buffer storage unit 162 with a second image quality lower than the first image quality of the moving image of the first hour (for example, an event moving image). More specifically, for example, the SU moving image storage processing unit 145 images the moving image of the first time stored in the first ring buffer storage unit 161 so as to have a second resolution lower than the first resolution. A stored moving image is generated by processing, and the stored moving image of the second resolution is stored in the second ring buffer storage unit 162. In one example, the resolution is changed from 1920 x 1080 to 1280 x 720. Alternatively, for example, the SU moving image storage processing unit 145 performs image processing on the moving image of the first time stored in the first ring buffer storage unit 161 so as to have a second frame rate lower than the first frame rate. As a result, a stored moving image is generated, and the stored moving image at the second frame rate is stored in the second ring buffer storage unit 162. In one example, the frame rate is changed from 30 fps to 15 fps. According to this, since the stored moving image has a second image quality lower than the first image quality of the moving image of the first hour (for example, an event moving image), the second ring buffer storage unit 162 can be configured by a memory element having a smaller storage capacity. ..

Further, in the above-described embodiment, a predetermined action in the monitored person Ob is detected as one of the events from the image generated by the imaging unit 11, but the present invention is not limited to this, and instead of the imaging unit 11. Alternatively, in addition to the imaging unit 11, a predetermined action in the monitored person Ob may be detected from another sensor. For example, a radar (or active sonar) may be used in place of the imaging unit 11 or in addition to the imaging unit 11. A method of detecting a predetermined behavior using radar (or active sonar) is disclosed in, for example, WO2018 / 186042 (PCT / JP2018 / 006492). When the image pickup unit 11 and the radar (or active sonar) are used, for example, the first detection result of the image pickup unit 11 and the second detection result of the radar (or active sonar) are finally detected by OR calculation. Is determined. If the first detection result of the imaging unit 11 and the second detection result of the radar (or active sonar) are the same and within a predetermined time, they may be integrated into one.

Further, in the above-described embodiment, the time length of the event moving image and the time length of the stored moving image stored in the first ring buffer storage unit 161 to the second ring buffer storage unit 162 are the same first time, but are different. You may. That is, in the above-described embodiment, the first ring buffer storage unit 161 has a storage capacity capable of storing a moving image of the first hour, which is the same as the time length of the event moving image, but has a storage capacity capable of storing the moving image of the first hour or longer. It may be. Further, in the above-described embodiment, when the storage process for the first ring buffer storage unit 161 has been completed, the moving image of the first time from the first start address to the first final address is stored as the first ring buffer storage unit. Although the moving images stored in the second ring buffer storage unit 162 from 161 are stored, the moving images stored in a part of the storage area of the first ring buffer storage unit 161 may be sequentially stored in the second ring buffer storage unit 162. .. That is, the first ring buffer storage unit 161 has a storage capacity for storing a moving image of a predetermined third time that is longer than the first time and less than the second time, and the moving image generated by the imaging unit 11 has a storage capacity. The SU moving image storage processing unit 145 is a storage unit of a ring buffer that stores the first ring buffer storage unit 161 (an example of the storage unit of the ring buffer) every time a predetermined fourth time elapses after the third time. ) Is read, the read moving image of the fourth hour is stored in the second ring buffer storage unit 162 (an example of the moving image storage unit) as the stored moving image, and the moving image is transmitted. When the processing unit 146 detects the event, the processing unit 146 reads the moving image of the first time stored in the first ring buffer storage unit 161 and uses the read moving image of the first time as the event moving image as the management server device. Send to SV. Preferably, the third time is a plurality of times the fourth time. In one example, the third hour is 10 minutes and the fourth hour is 2 minutes. In this example, the first ring buffer storage unit 161 makes a round every 10 minutes, and while the first ring buffer storage unit 161 makes a round in these 10 minutes, a moving image of 2 minutes every 2 minutes is stored as a saved moving image of the 1st ring buffer storage unit 161. Is sequentially read from the second ring buffer storage unit 162 and stored in the second ring buffer storage unit 162. Further, in this case, there may be an overlap for a predetermined time (several frames) between two stored moving images adjacent to each other in time series, and the overlap may not be required.

Further, in the above-described embodiment, when the storage process for the second ring buffer storage unit 162 has been completed, the stored moving image for the second time stored in the second ring buffer storage unit 162 is a stored moving image notification communication signal. Although it was transmitted to the management server device SV, the stored moving image of the second time is not transmitted to the management server device SV and is erased by sequentially overwriting from the second start address of the second ring buffer storage unit 162. May be done. By securing the storage capacity of the number of days required for confirmation at a later date in the second ring buffer storage unit 162, it is possible to sufficiently cope with the confirmation at a later date, and the management server device can store the stored moving image for the second time. It is not necessary to secure the storage capacity of the SV.

Further, in the above-described embodiment, the management server device SV erases the stored moving image after the lapse of the sixth time, but the stored moving image storage unit 236 is composed of a ring buffer from the third start address to the third final address. The management server device SV sequentially stores the stored moving image received from the sensor device SU from the third start address to the third final address for each reception, and when the third final address is reached, the third start address is reached. By returning to and storing by overwriting, the saved moving images may be sequentially deleted.

Further, in the above-described embodiment, tag information is added when the detected event type is not a specific type, but tag information is added to all types regardless of the detected event type. May be done.

The present specification discloses various aspects of the technology as described above, of which the main technologies are summarized below.

The sensor device according to one aspect is provided corresponding to the monitored person to be monitored, and is communicably connected to the sensor device that detects a predetermined event related to the monitored person and the sensor device. Receives notification of the event detected in the central management device that manages the event, and receives notification of the event detected by the sensor device via the central management device that is communicably connected to the central management device. The sensor device of the monitored person monitoring support system provided with a terminal device and for supporting the monitoring of the monitored person. The image pickup unit that generates a moving image and the image pickup unit when the event is detected. A moving image transmission processing unit that transmits the generated moving image of the predetermined first time including the time when the event is detected to the central management device as an event moving image, and a moving image of a predetermined second time longer than the first time. It has a storage capacity for storing, and includes a moving image storage unit that stores a moving image generated by the imaging unit as a stored moving image. Preferably, in the above-mentioned sensor device, the event moving image is a moving image (pre-detection moving image) generated by the imaging unit before the time when the event is detected and a moving image (pre-detection moving image) generated by the imaging unit after the time when the event is detected. Includes the generated video (video after detection). Preferably, in the sensor device described above, the event includes a plurality of types, and when the moving image transmission processing unit detects a preset specific type of event among the plurality of types, the event is described. A predetermined first-hour moving image including the time when the event is detected, which is generated by the imaging unit, is transmitted to the central management device as an event moving image. Preferably, the types of events are wake up, get out of bed, fall, fall and nurse call, and the particular type is the fall and the fall. Preferably, in the above-mentioned sensor device, the moving image transmitting unit further transmits a stored moving image stored in the moving image storage unit to the central management device.

When such an event is detected, such a sensor device transmits, as an event video, a moving image of a predetermined first time including a time when the event is detected generated by the imaging unit to the central management device. Then, the moving image generated by the imaging unit is stored in the moving image storage unit as a saved moving image. Therefore, the central management device can save the event moving image, and the sensor device can save the image at the time of failure as the saved moving image while saving the image at the time of occurrence.

In another aspect, in the above-mentioned sensor device, the moving image generated by the imaging unit has a storage capacity for storing a moving image of a predetermined third time that is the first time or more and less than the second time. A ring buffer storage unit that stores The first moving unit is further provided with a moving image storage processing unit that stores the moving image of the above as the stored moving image in the moving image storage unit, and the moving image transmitting unit stores the moving image in the storage unit of the ring buffer when the event is detected. The moving image of the time is read, and the read moving image of the first time is transmitted to the central management device as the event moving image. Preferably, in the above-mentioned sensor device, when the event is detected, the moving image transmitting unit stores the event in the ring buffer after a predetermined seventh time shorter than the first time has elapsed from the time when the event is detected. The video of the first time is read, and the read video of the first time is transmitted to the central management device as the event video.

Such a sensor device stores the moving image generated by the imaging unit in the storage unit of the ring buffer, and transmits the event moving image from the moving image stored in the storage unit of the ring buffer to the central management device. Save The video is stored in the video storage unit. Therefore, in the sensor device, the configuration is simplified, and when the state of the patient or the like is confirmed at a later date, the content of the event moving image and the content of the stored moving image can be handled with the same value. Further, since the storage unit is a ring buffer, the oldest (oldest) stored moving image frame after the lapse of 3 hours after being stored in the storage unit of the ring buffer is stored by the imaging unit at this time. It will be overwritten with the frame of the generated video and can be deleted automatically.

In another aspect, in the sensor device described above, the moving image storage unit is a ring buffer.

In such a sensor device, since the moving image storage unit is a ring buffer, the sensor device can be configured with a memory element having a minimum storage capacity for storing the moving image of the second time, and after being stored in the moving image storage unit. After the second hour, the oldest (oldest) stored video frame is overwritten with the video frame stored at this point and can be automatically erased.

In another aspect, in the sensor device described above, the stored moving image has a second image quality lower than the first image quality of the event moving image. Preferably, in the above-mentioned sensor device, the stored moving image has a second resolution lower than the first resolution of the event moving image. The second frame rate is lower than the rate.

In such a sensor device, since the stored moving image has a second image quality lower than the first image quality of the event moving image, the moving image storage unit can be configured by a memory element having a smaller storage capacity.

In another aspect, in the sensor device described above, the event includes a plurality of types, and the moving image transmission processing unit detects a preset specific type of event among the plurality of types. In addition, the moving image of a predetermined first time including the time when the event is detected, which is generated by the imaging unit, is transmitted to the central management device as the event moving image, and the specific type among the plurality of types is transmitted. Further provided is a tag information imparting processing unit that associates predetermined tag information relating to the detected event with the stored moving image stored in the moving image storage unit when an event of the remaining type other than the above is detected. Preferably, in the sensor device described above, the types of events are wake up, get out, fall, fall and nurse call, the particular type is the fall and the fall, and the residual type is wake up, Get out of bed and nurse call.

In such a sensor device, an event video related to a specific type of event can be referred to by the central management device by saving it in the central management device, and the video related to the remaining type of event can be referred to based on the tag information. You can refer to it in the saved video.

The monitoring image storage method according to the other aspect is provided corresponding to the monitored person to be monitored, and is communicably connected to the sensor device for detecting a predetermined event related to the monitored person and the sensor device. , A central management device that receives notification of an event detected by the sensor device and manages the event, and an event that is communicably connected to the central management device and detected by the sensor device via the central management device. This is a monitoring image storage method of a monitored person monitoring support system for supporting the monitoring of the monitored person, which is provided with a terminal device that receives the notification of the above, and is an imaging process for generating a moving image and when the event is detected. A moving image transmission processing step of transmitting the moving image of a predetermined first time including the time when the event is detected to the central management device as an event moving image generated in the imaging step, and a predetermined first time longer than the first time. The moving image storage unit having a storage capacity for storing a moving image for 2 hours is provided with a moving image storage step of storing the moving image generated in the imaging step as a saved moving image.

In such a monitoring image storage method, when the event is detected, a moving image of a predetermined first time including the time when the event is detected generated by the imaging unit is transmitted to the central management device as an event moving image. On the other hand, the moving image generated by the imaging unit is stored in the moving image storage unit as a saved moving image. Therefore, the event moving image can be saved by the central management device, and the monitoring image saving method can save the image at the time of failure as the saved moving image while saving the image at the time of occurrence.

The monitored person monitoring support system according to the other aspect is provided corresponding to the monitored person to be monitored, and can communicate with the sensor device and the sensor device that detect a predetermined event related to the monitored person. A central management device that is connected and receives notification of an event detected by the sensor device and manages the event, and is communicably connected to the central management device and detected by the sensor device via the central management device. A monitored person monitoring support system for supporting the monitoring of the monitored person, which is provided with a terminal device for receiving notification of the event, and has an imaging unit that generates a moving image and the imaging unit when the event is detected. A video transmission processing unit that transmits a predetermined first time video including a time when the event is detected to the central management device as an event video generated by the unit, and a predetermined second time longer than the first time. It has a storage capacity for storing moving images, and includes a moving image storage unit that stores moving images generated by the imaging unit as saved moving images. The monitored person monitoring support system according to the other aspect is provided corresponding to the monitored person to be monitored, and can communicate with the sensor device and the sensor device that detect a predetermined event related to the monitored person. A central management device that is connected and receives notification of an event detected by the sensor device and manages the event, and is communicably connected to the central management device and detected by the sensor device via the central management device. It is a monitored person monitoring support system for supporting the monitoring of the monitored person, comprising a terminal device for receiving notification of the event, and the sensor device is any of the above-mentioned sensor devices.

In such a monitored person monitoring support system, when the event is detected, the central management device generates a moving image of a predetermined first time including the time when the event is detected, which is generated by the imaging unit, as an event moving image. On the other hand, the moving image generated by the imaging unit is stored in the moving image storage unit as a saved moving image. Therefore, the event moving image can be saved by the central management device, and the monitored person monitoring support system can save the image at the time of failure as the saved moving image while saving the image at the time of occurrence.

In another aspect, in the above-mentioned monitored person monitoring support system, the central management device receives the event moving image storage unit for storing the event moving image received from the sensor device and the event moving image from the sensor device. It is provided with an event video erasing processing unit that erases the event video from the event video storage unit after a predetermined fifth time longer than the second time has elapsed from the reception time or the detection time of the event related to the event video.

Such a monitored person monitoring support system automatically deletes the event video after the lapse of the fifth time from the reception time or the detection time of the event, so that the event video can be memorized for the required time, and the event video can be stored. The storage capacity of the unit can be minimized.

In another aspect, in the above-mentioned monitored person monitoring support system, the moving image transmission unit further transmits a stored moving image stored in the moving image storage unit to the central management device, and the central management device causes the central management device. , The second time is longer than the second time from the storage moving image storage unit that stores the stored moving image received from the sensor device and the reception time when the saved moving image is received from the sensor device or the detection time of the event related to the saved moving image. After a lapse of a predetermined sixth time, the storage moving image erasing processing unit for erasing the stored moving image stored in the stored moving image storage unit from the stored moving image storage unit is provided.

Such a monitored person monitoring support system can save the saved video in the central management device, and automatically deletes the saved video after the lapse of 6 hours from the reception time or the detection time of the event. The saved video can be stored for the required time, and the storage capacity of the saved video storage unit can be minimized.

This application is based on Japanese Patent Application No. 2018-214508 filed on November 15, 2018, the contents of which are included in the present application.

Although embodiments of the present invention have been illustrated and described in detail, they are merely illustrations and examples and are not limited. The scope of the invention should be construed by the wording of the accompanying claims.

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 comprehensively included in.

According to the present invention, it is possible to provide a sensor device of a monitored person monitoring support system for supporting monitoring of a monitored person, a monitoring image saving method for storing the monitored image, and the monitored person monitoring support system.

Claims (10)

A sensor device that is provided in response to the monitored person to be monitored and detects a predetermined event related to the monitored person, is communicably connected to the sensor device, and notifies the notification of the event detected by the sensor device. It is provided with a central management device that receives and manages the event, and a terminal device that is communicably connected to the central management device and receives notification of an event detected by the sensor device via the central management device, and is monitored. The sensor device of the monitored person monitoring support system for supporting the monitoring of a person.
An imaging unit that generates moving images and
When the event is detected, a moving image transmission processing unit that transmits the moving image of a predetermined first time including the time when the event is detected generated by the imaging unit to the central management device as an event moving image.
It has a storage capacity for storing a moving image of a predetermined second time longer than the first time, and includes a moving image storage unit for storing a moving image generated by the imaging unit as a stored moving image.
Sensor device. A storage unit of a ring buffer having a storage capacity for storing a moving image of a predetermined third time that is equal to or longer than the first hour and less than the second time, and storing a moving image generated by the imaging unit.
The moving image of the 4th hour stored in the storage unit of the ring buffer is read out every time the predetermined 4th hour of the 3rd hour or less elapses, and the read moving image of the 4th hour is stored as the stored moving image. It also has a video storage processing unit that stores in the unit.
When the moving image transmission unit detects the event, the moving image transmitting unit reads the moving image of the first time stored in the storage unit of the ring buffer, and the read moving image of the first time is used as the event moving image for central management. Send to device,
The sensor device according to claim 1. The moving image storage unit is a ring buffer.
The sensor device according to claim 1 or 2. The saved moving image has a second image quality lower than the first image quality of the event moving image.
The sensor device according to any one of claims 1 to 3. The event includes multiple types
When the moving image transmission processing unit detects a preset specific type of event among the plurality of types, a predetermined first unit including a time point when the event is detected, which is generated by the imaging unit. A video of the time is transmitted as the event video to the central management device,
When an event of a residual type other than the specific type is detected among the plurality of types, predetermined tag information regarding the detected event is associated with the stored moving image stored in the moving image storage unit. Further equipped with a tag information addition processing unit,
The sensor device according to any one of claims 1 to 4. A sensor device that is provided in response to the monitored person to be monitored and detects a predetermined event related to the monitored person, is communicably connected to the sensor device, and notifies the notification of the event detected by the sensor device. It is provided with a central management device that receives and manages the event, and a terminal device that is communicably connected to the central management device and receives notification of an event detected by the sensor device via the central management device, and is monitored. It is a monitoring image storage method of the monitored person monitoring support system to support the monitoring of the person.
The imaging process to generate a moving image and
When the event is detected, a moving image transmission processing step of transmitting the moving image of a predetermined first time including the time when the event is detected generated in the imaging step to the central management device as an event moving image, and
A moving image storage unit having a storage capacity for storing a moving image of a predetermined second time longer than the first time is provided with a moving image storage step of storing the moving image generated in the imaging step as a storage moving image.
Surveillance image storage method. A sensor device that is provided in response to the monitored person to be monitored and detects a predetermined event related to the monitored person, is communicably connected to the sensor device, and notifies the notification of the event detected by the sensor device. It is provided with a central management device that receives and manages the event, and a terminal device that is communicably connected to the central management device and receives notification of an event detected by the sensor device via the central management device, and is monitored. It is a monitored person monitoring support system to support the monitoring of people.
An imaging unit that generates moving images and
When the event is detected, a moving image transmission processing unit that transmits the moving image of a predetermined first time including the time when the event is detected generated by the imaging unit to the central management device as an event moving image.
It has a storage capacity for storing a moving image of a predetermined second time longer than the first time, and includes a moving image storage unit for storing a moving image generated by the imaging unit as a stored moving image.
Observed person monitoring support system. A sensor device that is provided in response to the monitored person to be monitored and detects a predetermined event related to the monitored person, is communicably connected to the sensor device, and notifies the notification of the event detected by the sensor device. It is provided with a central management device that receives and manages the event, and a terminal device that is communicably connected to the central management device and receives notification of an event detected by the sensor device via the central management device, and is monitored. It is a monitored person monitoring support system to support the monitoring of people.
The sensor device is the sensor device according to any one of claims 1 to 5.
Observed person monitoring support system. The central management device
An event video storage unit that stores the event video received from the sensor device, and an event video storage unit.
The event video is deleted from the event video storage unit after a predetermined fifth time longer than the second time has elapsed from the reception time when the event video is received from the sensor device or the detection time of the event related to the event video. Equipped with an event video erasing processing unit
The monitored person monitoring support system according to claim 7 or 8. The moving image transmitting unit further transmits the stored moving image stored in the moving image storage unit to the central management device.
The central management device
A storage moving image storage unit that stores the stored moving image received from the sensor device, and a storage moving image storage unit.
The storage stored in the stored moving image storage unit after a predetermined sixth time longer than the second time has elapsed from the reception time when the stored moving image is received from the sensor device or the detection time of the event related to the saved moving image. A storage moving image erasing processing unit for erasing a moving image from the stored moving image storage unit is provided.
The monitored person monitoring support system according to any one of claims 7 to 9.

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