Behavior monitoring system and power saving method thereof

Abstract

This behavior monitoring system is provided with a detection unit, a determination unit and a power supply control unit. This detection unit includes an opening / closing detection sensor which corresponds to the opening / closing of a door in a room of a residence, and a person detection sensor which is present in each room and which detects the presence or absence of people. The determination unit determines that a monitoring target is in said room on the basis of detection by the opening / closing detection sensor that corresponds to the opening / closing of a door in a given room of the residence, and person detection by the person detection sensor that is provided in that room. Upon determining the room where the monitoring target is present, the power supply control unit changes the mode of the detection unit provided in rooms other than the room where the monitoring target is present from a normal mode to a power saving mode.

Description

[Technical field]

[0001] This specification discloses a behavior monitoring system and a power saving method thereof. [Background technology]

[0002] Conventionally, as this type of behavior monitoring system, a system has been proposed in which a monitored person monitoring device is provided in each of a plurality of rooms assigned as the living space of the monitored person (for example, see Patent Document 1). The monitored person monitoring devices are communicably connected to each other via a network, and each has a communication IF unit, an imaging unit (camera), a presence / absence determination unit that determines the presence / absence of the monitored person in the imaging target based on an image of the imaging target generated by the imaging unit, and an operation mode control unit (control processing unit) that controls the operation mode. When the operation mode control unit of each monitored person monitoring device determines that the monitored person is present in the imaging target in its own monitored person monitoring device, it controls the device in a normal operation mode in which the communication IF unit, the imaging unit, etc. are in an active state, and broadcasts a command to the other monitored person monitoring devices via the communication IF unit to switch the communication IF unit to an active state and to switch the imaging unit and the presence / absence determination unit to a power saving operation mode in which the sleep state is set. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2016-173642 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-mentioned behavior monitoring system, since the camera captures the image of the image capture target to determine whether or not the monitored person is present within the image capture target, a camera is required in each room, which leads to increased costs. Furthermore, some monitored people may feel uncomfortable being constantly monitored by a camera.

[0005] A primary object of the present disclosure is to enable low-cost, power-saving behavior monitoring system that monitors the behavior of a monitored person living in a residence. [Means for solving the problem]

[0006] In order to achieve the above-mentioned main object, the present disclosure has adopted the following means.

[0007] The behavior monitoring system of the present disclosure comprises: A behavior monitoring system for monitoring the behavior of a monitoring target person living in a residence, comprising: A detection unit including an opening / closing detection sensor provided on each door separating each room of the residence and detecting opening / closing of the corresponding door, and a human detection sensor provided in each room and detecting the presence or absence of a human; a determination unit that determines that a person to be monitored is present in any one of the rooms of the residence based on the detection of opening and closing of a door of the room by a corresponding opening and closing detection sensor and the detection of a person by a person detection sensor provided in the room; a power supply control unit that changes a mode of a detection unit provided in a room other than the room where the monitoring subject is present from a normal mode to a power saving mode when the determination unit determines which room the monitoring subject is present in; The gist of the project is to provide the following:

[0008] In the behavior monitoring system disclosed herein, the presence of a monitored person in a room is determined based on the fact that the opening and closing of a door in any room of a residence is detected by a corresponding opening and closing detection sensor and a person is detected by a human detection sensor installed in the room. This makes it possible to more reliably identify the room in which the monitored person is present without using an expensive human detection sensor. Furthermore, when the room in which the monitored person is present is determined, the mode of the detection units (opening and closing detection sensors and human detection sensors) installed in rooms other than the room in which the monitored person is present is changed from normal mode to power saving mode. This makes it possible to reduce power consumption in unnecessary sensors, etc. As a result, a behavior monitoring system that can save power at low cost can be achieved. [Brief description of the drawings]

[0009] [Figure 1] 1 is a schematic configuration diagram of a behavior monitoring system according to an embodiment of the present invention. [Diagram 2] FIG. 2 is an explanatory diagram showing an example of sensors installed in each room of a house. [Diagram 3] 13 is a flowchart illustrating an example of a data measurement process. [Figure 4] 13 is a flowchart illustrating an example of a data measurement process. [Diagram 5] 13 is a flowchart illustrating an example of a data measurement process. [Figure 6] 13 is a flowchart illustrating an example of a behavior pattern determination process. [Figure 7] FIG. 2 is an explanatory diagram showing an example of the installation position of a camera. [Figure 8] FIG. 2 is an explanatory diagram showing an example of an imaging result of a camera. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Next, an embodiment of the present disclosure will be described with reference to the drawings.

[0011] FIG. 1 is a schematic diagram of a behavior monitoring system 10 of this embodiment. As shown in FIG. 1, the behavior monitoring system 10 of this embodiment includes a management server 20 that manages the entire system, and a monitoring device 30 that is installed in each of residences A to C where a person to be monitored lives. The residences A to C are residences where, for example, elderly people or people requiring care live alone, and have, for example, an L (living room), D (dining room), K (kitchen), a bedroom, a washroom, a bathroom, a toilet, and an entrance, as shown in FIG. 2. The behavior monitoring system 10 can be used, for example, to monitor the behavior of elderly people or people requiring care as monitoring subjects on behalf of caregivers, and to find abnormalities in their behavior at an early stage.

[0012] The monitoring device 30 includes a control unit 31, a communication unit 32, a display unit 33, a speaker 34, a power supply unit 35 (power supply circuit), and sensors 40. The control unit 31 is configured as a microprocessor centered around a CPU, and includes a ROM, a RAM, etc. in addition to the CPU. The display unit 33 and the speaker 34 output various information from the management server 20 by display or sound.

[0013] The sensors 40 are used to detect where and what the monitored person living in the residence is doing, and as shown in FIG. 2, include door sensors 41, 43, 51, 61, 71, 81, human presence sensors 42a, 42b, 42c, 52, 62, 72, a sleep sensor 53, a toilet faucet sensor 73, and a temperature sensor 44.

[0014] The door sensors 41, 43, 51, 61, 71, and 81 are configured as magnet-type open / close sensors having, for example, a permanent magnet fixed to the door side and a magnetic sensor fixed to the frame side. The door sensor 41 is provided on the door of the living / dining / kitchen room, the door sensor 43 is provided on the door of a refrigerator installed in the kitchen, and the door sensor 51 is provided on the door of a bedroom. The door sensor 61 is provided on the door of a toilet room, the door sensor 71 is provided on the door of a bathroom, and the door sensor 81 is provided on the front door.

[0015] The motion sensors 42a, 42b, 42c, 52, 62, and 72 are sensors that detect people within a detection area in a non-contact manner, and are configured as, for example, infrared sensors that detect infrared rays and convert them into electrical signals. The motion sensors 42a, 42b, and 42c are provided in the living room, dining room, and kitchen of the living / dining / kitchen room, respectively. The motion sensor 52 is provided in the bedroom, the motion sensor 62 is provided in the bathroom, and the motion sensor 72 is provided in the toilet room.

[0016] Sleep sensor 53 is, for example, a sheet-type biosensor that is provided under a bed mattress in a bedroom and acquires biometric information such as the pulse and breathing of a person sleeping in the bed. Temperature sensor 44 is provided on the front side of the refrigerator and detects the change in the surrounding temperature when the refrigerator door is opened. Toilet faucet sensor 73 detects the operation of the toilet flush lever or flush switch, and in this embodiment, detects large flush operation and small flush operation in a distinguishable manner.

[0017] The power supply unit 35 is a power supply circuit that is connected to a commercial power system and converts AC power from the commercial power system into DC power of a predetermined voltage and supplies it to the control unit 31, the communication unit 32, the display unit 33, the speaker 34, and the sensors 40. The power supply unit 35 can control the power supply individually for each sensor of the sensors 40, and has a normal mode in which power is supplied to the sensor to make the sensor operable, and a sleep mode (power saving mode) in which power supply to the sensor is stopped to make the sensor in an inoperable sleep state. Each sensor of the sensors 40 can be switched between the normal mode and the sleep mode by the control unit 31 controlling the power supply unit 35.

[0018] The management server 20 comprises a processing unit 21, a communication unit 22, and a storage unit 23. The processing unit 21 is configured as a microprocessor centered on a CPU, and comprises a ROM, a RAM, etc. in addition to the CPU. The communication unit 22 of the management server 20 is connected to the communication unit 32 of each monitoring device 30 via a network 11 such as the Internet, and the management server 20 and each monitoring device 30 exchange data and signals with each other via the communication units 22, 32. The storage unit 23 is configured with an HDD, SSD, etc., and receives data measured by each monitoring device 30 and stores the data for a certain period of time.

[0019] Next, the operation of the behavior monitoring system thus configured will be described. First, the operation of the monitoring device 30 will be described, and then the operation of the management server 20 will be described. Fig. 3 is a flow chart showing an example of a data measurement process executed by the control unit 31 of the monitoring device 30 installed in each of the residences A to C. This process is repeatedly executed at predetermined time intervals.

[0020] In the data measurement process, the control unit 31 judges whether or not the door sensor 41 detects the opening and closing of the door of the living / dining / kitchen room (step S100), whether or not the door sensor 51 detects the opening and closing of the door of the bedroom (step S116), whether or not the door sensor 61 detects the opening and closing of the door of the bathroom (step S132), whether or not the door sensor 71 detects the opening and closing of the door of the toilet room (step S148), and whether or not the door sensor 81 detects the opening and closing of the front door (step S164). If the control unit 31 judges that none of the doors have been opened or closed, it judges whether or not the monitored person is determined to be at home in step S172 (to be described later) (step S176). If the control unit 31 judges that the monitored person is determined to be at home, if any of the sensors of the sensors 40 reacts, the control unit 31 transmits the detection data to the management server 20 (step S178) and ends the data measurement process. On the other hand, if the control unit 31 judges that the monitored person is not determined to be at home, it ends the data measurement process.

[0021] When the control unit 31 determines in step S100 that the door to the LDK room has been opened or closed, it determines whether or not the monitored person has been determined to be present in the LDK room in step S106 (described later) (step S102). When the control unit 31 determines that the monitored person has not been determined to be present in the LDK room, it determines whether or not any of the sensors in the LDK room (the motion sensors 42a, 42b, 42c, the door sensor 43, and the temperature sensor 44) have responded within a predetermined time since the door to the LDK room was opened or closed (step S104). When the control unit 31 determines that there has been no response from any of the sensors in the LDK room within the predetermined time, it proceeds to step S176. On the other hand, if the control unit 31 determines that there has been a reaction from any of the sensors in the LDK room within the specified time, it determines that the person to be monitored has entered the LDK room and is present in the room, and transmits this determination result and the detection data of each sensor in the LDK room (human presence sensors 42a, 42b, 42c, door sensor 43, and temperature sensor 44) to the management server 20 (step S106).Then, the control unit 31 controls the power supply unit 35 to change the mode of the sensors in rooms other than the LDK room (sensors other than the door sensors 41, 43, human presence sensors 42a to 42c, and temperature sensor 44 in the LDK room) to sleep mode (step S108), and proceeds to step S176. In this embodiment, the motion sensors 42a, 42b, and 42c are installed in the living room, dining room, and kitchen, respectively, and the control unit 31 determines that the person to be monitored is in the living room when the motion sensor 42a reacts, determines that the person to be monitored is in the dining room when the motion sensor 42b reacts, and determines that the person to be monitored is in the kitchen when the motion sensor 42c reacts. Furthermore, in this embodiment, a door sensor 43 is provided on the door of the refrigerator, and a temperature sensor 44 is provided on the front side of the refrigerator, and the control unit 31 determines that the person to be monitored has opened the refrigerator door when the door sensor 43 reacts or the temperature detected by the temperature sensor 44 drops by a predetermined temperature or more within a predetermined time. One of the door sensor 43 and the temperature sensor 44 may be omitted.

[0022] If the control unit 31 determines in step S102 that the person is determined to be in the LDK room, it determines whether or not there is a reaction from any of the sensors in the LDK room (step S110). If the control unit 31 determines that there is a reaction from any of the sensors in the LDK room, it determines that the person to be monitored is still in the LDK room, and proceeds to step S176. On the other hand, if the control unit 31 determines that there is no reaction from any of the sensors in the LDK room, it determines that the person to be monitored is not in the LDK room and has left the LDK room, and transmits the determination result to the management server 20 (step S112). Then, the control unit 31 controls the power supply unit 35 to change the mode of all sensors to normal mode (step S114), and proceeds to step S176.

[0023] If the control unit 31 determines in step S116 that the opening and closing of the bedroom door has been detected, it determines whether or not it has been determined in step S122, described below, that the monitored person is present in the bedroom (step S118). If the control unit 31 determines that the monitored person is not present in the bedroom, it determines whether or not there has been a reaction from any of the sensors in the bedroom (the human sensor 52 or the sleep sensor 53) during a predetermined time period since the opening and closing of the bedroom door was detected (step S120). If the control unit 31 determines that there has been no reaction from any of the sensors in the bedroom during the predetermined time period, it proceeds to step S176. On the other hand, if the control unit 31 determines that there has been a response from any of the sensors in the bedroom within the specified period of time, it determines that the person to be monitored has entered the bedroom and is present in the bedroom, and transmits this determination result and the detection data of each sensor in the bedroom (the human presence sensor 52 and the sleep sensor 53) to the management server 20 (step S122).Then, the control unit 31 controls the power supply unit 35 to change the mode of the sensors in rooms other than the bedroom (sensors other than the bedroom door sensor 51, the human presence sensor 52, and the sleep sensor 53) to sleep mode (step S124), and proceeds to step S176.

[0024] If the control unit 31 determines in step S118 that the person is determined to be in the bedroom, it determines whether or not there is no response from any of the sensors in the bedroom (step S126). If the control unit 31 determines that there is a response from any of the sensors in the bedroom, it determines that the person to be monitored is still in the bedroom, and proceeds to step S176. On the other hand, if the control unit 31 determines that there is no response from any of the sensors in the bedroom, it determines that the person to be monitored is not in the bedroom and has left the bedroom, and transmits the determination result to the management server 20 (step S128). Then, the control unit 31 controls the power supply unit 35 to change the modes of all the sensors to normal mode (step S130), and proceeds to step S176.

[0025] If control unit 31 determines in step S132 that the bathroom door has been opened or closed, it determines whether or not the monitored person has been determined to be in the bathroom in step S138, which will be described later (step S134). If control unit 31 determines that the monitored person has not been determined to be in the bathroom, it determines whether or not the bathroom motion sensor 62 has responded within a predetermined time since the bathroom door was detected to be opened or closed (step S136). If control unit 31 determines that the bathroom motion sensor 62 has not responded within the predetermined time, it proceeds to step S176. On the other hand, if the control unit 31 determines that there has been a reaction from the bathroom motion sensor 62 within the specified time, it determines that the person to be monitored has entered the bathroom and is present in the bathroom (taking a bath) and sends the determination result to the management server 20 (step S138), and then the control unit 31 controls the power supply unit 35 to change the mode of the sensors in rooms other than the bathroom (sensors other than the bathroom door sensor 61 and the motion sensor 62) to sleep mode (step S140), and proceeds to step S176.

[0026] If the control unit 31 determines in step S134 that the person is determined to be in the bathroom, it determines whether or not there is no reaction from the bathroom motion sensor 62 (step S142). If the control unit 31 determines that there is a reaction from the bathroom motion sensor 62, it determines that the person to be monitored is still in the bathroom, and proceeds to step S176. On the other hand, if the control unit 31 determines that there is no reaction from the bathroom motion sensor 62, it determines that the person to be monitored is not in the bathroom and has left the bathroom, and transmits the determination result to the management server 20 (step S144). Then, the control unit 31 controls the power supply unit 35 to change the modes of all sensors to normal mode (step S146), and proceeds to step S176.

[0027] When the control unit 31 determines in step S148 that the toilet door has been opened or closed, it determines whether or not the monitored person is determined to be in the toilet in step S154 described later (step S150). When the control unit 31 determines that the monitored person is not in the toilet, it determines whether or not there has been a reaction from any of the toilet sensors (the human sensor 72 or the toilet faucet sensor 73) during a predetermined time period since the toilet door was detected to be opened or closed (step S152). When the control unit 31 determines that there has been no reaction from any of the toilet sensors during the predetermined time period, it proceeds to step S176. On the other hand, if the control unit 31 determines that there has been a response from any of the sensors in the toilet room within the specified time, it determines that the person to be monitored has entered and is present in the toilet room, and transmits this determination result and the detection data of each sensor in the toilet room (the human presence sensor 72 and the toilet faucet sensor 73) to the management server 20 (step S154), and then the control unit 31 controls the power supply unit 35 to change the mode of the sensors in rooms other than the toilet room (sensors other than the toilet room door sensor 71, the human presence sensor 72, and the toilet faucet sensor 73) to sleep mode (step S156), and proceeds to step S176.

[0028] When the control unit 31 determines in step S150 that the person is determined to be in the toilet room, it determines whether or not there is no reaction from any of the sensors in the toilet room (step S158). When the control unit 31 determines that there is a reaction from any of the sensors in the toilet room, it determines that the person to be monitored is still in the toilet room, and proceeds to step S176. On the other hand, when the control unit 31 determines that there is no reaction from any of the sensors in the toilet room, it determines that the person to be monitored is not in the toilet room, but has left the toilet room, and transmits the determination result to the management server 20 (step S160). Then, the control unit 31 controls the power supply unit 35 to change the modes of all the sensors to normal mode (step S162), and proceeds to step S176.

[0029] When the control unit 31 determines in step S164 that the front door has been opened or closed, it determines whether or not the monitored person has been determined to be out in step S168 described below (step S166). When the control unit 31 determines that the monitored person has not been determined to be out, it determines that the monitored person is out (step S168). Then, the control unit 31 controls the power supply unit 35 to change the modes of all sensors other than the door sensor 81 of the front door to the sleep mode (step S170), and proceeds to step S176.

[0030] If the control unit 31 determines in step S166 that the person to be monitored has been determined to be out, then since the person to be monitored has returned home from being out, the control unit 31 determines that the person to be monitored is at home and transmits the result of the determination to the management server 20 (step S172). Then, the control unit 31 controls the power supply unit 35 to change the modes of all the sensors to the normal mode (step S174), and proceeds to step S176.

[0031] In this way, the control unit 31 determines which room the monitored person is in by combining a door sensor that detects the opening and closing of the door separating each room with a human presence sensor that detects whether or not a person (monitored person) is in the corresponding room, and can more reliably identify the location of the monitored person. In addition, when the control unit 31 determines that the monitored person is in a certain room, it changes the mode of the sensors installed in the other rooms to sleep mode, thereby suppressing unnecessary power consumption and achieving energy saving in the entire system. Furthermore, when the control unit 31 determines that the door of the room in which the monitored person is present is opened or closed and that the monitored person has left, it returns the modes of all sensors to normal mode, making it possible to appropriately detect the destination of the monitored person.

[0032] Next, a description will be given of the operation of the management server 20. Fig. 6 is a flow chart showing an example of a behavior pattern determination process executed by the processing unit 21 of the management server 20. This process is repeatedly executed at predetermined time intervals.

[0033] In the behavior pattern determination process, the processing unit 21 first determines whether or not it has received measurement data (such as the result of determining whether the monitored person has entered or left the room, or the detection data from the sensors 40) from each monitoring device 30 (step S200). If the processing unit 21 determines that it has not received measurement data, it ends the behavior pattern determination process. On the other hand, if the processing unit 21 determines that it has received measurement data, it accesses a time server via the Internet to obtain the current date, time (hour / minute / second), and day of the week as time information (step S202), and stores the obtained time information in the storage unit 23 in association with the measurement data (step S204).

[0034] Next, the processing unit 21 judges whether data for a certain period (for example, one day's worth or one week's worth) has been accumulated in the storage unit 23 (step S206). When the processing unit 21 judges that data for a certain period has not yet been accumulated, it ends the behavior pattern judgment process. On the other hand, when the processing unit 21 judges that data for a certain period has been accumulated in the storage unit 23, it extracts a behavior pattern from the accumulated data (step S208). The extraction of the behavior pattern is performed by judging the wake-up time, meal time, number of toilet visits, bath time, bedtime, etc. based on the time information associated with the measurement data. The wake-up time can be judged by acquiring the detection time when the sleep sensor 53 detects a change from a sleeping state to an awake state. The meal time can be judged by acquiring the occurrence time when a movement from the kitchen to the dining room, opening and closing of the refrigerator, staying in the dining room for a predetermined time or longer, etc. occurs. The number of toilet visits can be counted when a flushing operation is detected by the toilet faucet sensor 63. The bath time can be determined based on the difference between the time when the user enters the bathroom and the time when the user leaves the bathroom. The bedtime can be determined by obtaining the time when the sleep sensor 53 detects a change from an awake state to a sleeping state.

[0035] When the processing unit 21 extracts a behavior pattern in this way, it compares the extracted behavior pattern with behavior patterns extracted in the past (step S210). The comparison of behavior patterns is performed by, for example, comparing wake-up times, meal times, number of toilet visits, bath time, bedtime, and the like. Then, the processing unit 21 outputs the comparison results to the corresponding monitoring device 30 (step S212), and ends the behavior pattern determination process. The monitoring device 30 outputs the received comparison results to the display unit 33 and the speaker 34. This allows the behavior of the monitored person to be grasped without the need for a caregiver to be present at all times, making it possible to find any abnormality in the monitored person at an early stage. The processing unit 21 may transmit the comparison results to a pre-registered information portable terminal such as a smartphone in order to notify the monitored person and his / her guardian of the comparison results.

[0036] Here, the correspondence between the main elements of the embodiment and the main elements of the present disclosure described in the claims will be described. That is, the door sensors 41, 51, 61, 71, and 81 of the embodiment correspond to the open / close detection sensors of the present disclosure, and the human presence sensors 42a, 42b, 42c, 52, 62, and 72, the door sensor 43, the temperature sensor 44, the sleep sensor 53, the toilet faucet sensor 73, and the like correspond to the human detection sensors. The control unit 31 which executes steps S132 to S138, S142, S144, S148 to S154, S158, S160, S164 to S168, and S172 corresponds to a determination unit, and the control unit 31 which executes steps S108, S114, S124, S130, S140, S146, S156, S170, and S174 of the data measurement process corresponds to a power control unit. Also, the storage unit 23 of the management server 20 corresponds to a storage unit, and the processing unit 21 which executes the behavior pattern determination process corresponds to a comparison unit.

[0037] It goes without saying that the present disclosure is in no way limited to the above-described embodiment, and can be embodied in various forms as long as it falls within the technical scope of the present disclosure.

[0038] For example, in the above-described embodiment, the control unit 31 determines in which room the monitored person is present by combining the door sensors 41, 51, 61, 71, 81 and the motion sensors 42a, 42b, 42c, 52, 62, 72, etc. However, the control unit 31 may use a motion capture camera to determine where the monitored person is and what he or she is doing. As shown in FIG. 7, the motion capture camera 142 may be installed in the dining room, for example, instead of the motion sensor 42b. As shown in FIG. 8, the motion capture camera 142 detects only the movements of the limbs, head, and torso, and does not obtain information related to privacy such as the face, so that the monitored person can be prevented from feeling uncomfortable about being constantly monitored by a camera.

[0039] In the behavior monitoring system of the present disclosure described above, the presence of a monitored person in a room is determined based on the fact that the opening and closing of a door in any room of a residence is detected by a corresponding opening and closing detection sensor and a person is detected by a human detection sensor installed in the room. This makes it possible to more reliably identify the room in which the monitored person is present without using an expensive human detection sensor. Furthermore, when the room in which the monitored person is present is determined, the mode of the detection units (opening and closing detection sensors and human detection sensors) installed in rooms other than the room in which the monitored person is present is changed from normal mode to power saving mode. This makes it possible to reduce power consumption in unnecessary sensors, etc. As a result, a behavior monitoring system that can save power at low cost can be achieved.

[0040] In the behavior monitoring system of the present disclosure, the power control unit may change the mode of the detection units installed in rooms other than the room where the monitored person is present to the power saving mode, and then change the mode of all the detection units to the normal mode based on the opening and closing of a door to the room where the monitored person is present being detected by a corresponding opening and closing detection sensor. In this way, it becomes possible to appropriately detect the next destination of the monitored person after he or she leaves the room where he or she is currently present.

[0041] In the behavior monitoring system of the present disclosure, the human detection sensor may include a status detection sensor that detects the status of an object installed in any room of the residence. In this case, the rooms of the residence may include a toilet room, the toilet room may have a toilet as an object installed in the toilet room, and the status detection sensor that detects the status of the toilet may detect the operation of a flush lever or flush switch of the toilet. Also, the room may have a refrigerator as an object installed in the room, and the status detection sensor that detects the status of the refrigerator may detect the opening and closing of the door of the refrigerator or a change in temperature of the refrigerator. In this way, it is possible to grasp the behavior of the monitored person using the status detection sensor.

[0042] Furthermore, in the behavior monitoring system of the present disclosure, the opening / closing detection sensor may also be installed at the front door of the residence, and the determination unit may determine that the person to be monitored has gone out based on the opening / closing of the front door being detected by the corresponding opening / closing detection sensor when the person to be monitored is determined to be in any room of the residence, and may determine that the person to be monitored has returned home based on the opening / closing of the front door being detected by the corresponding opening / closing detection sensor when the person to be monitored has gone out, and the control unit may set the modes of the detection units other than the opening / closing detection sensor that detects the opening / closing of the front door to the power saving mode based on the determination that the person to be monitored has gone out, and may change the modes of all the detection units to the normal mode based on the determination that the person to be monitored has returned home. In this way, it is possible to determine that the person to be monitored has gone out, and to reduce power consumption by unnecessary sensors and the like while the person to be monitored is out.

[0043] The behavior monitoring system of the present disclosure may further include a storage unit that stores the detection results of the detection unit, and a comparison unit that extracts the behavior pattern of the monitored person from the stored detection results and compares the current behavior pattern with the past behavior pattern. In this way, it is possible to grasp the behavior of the monitored person and quickly find any abnormalities.

[0044] In the behavior monitoring system of the present disclosure, the human detection sensor may include a camera installed in any room of the residence, and the camera may be a motion capture camera for detecting the behavior of the person being monitored. In this way, the behavior of the person being monitored can be monitored without leaving any images of the face or other private information.

[0045] The present disclosure is not limited to a behavior monitoring system, but may also be embodied in a power saving method in a behavior monitoring system. [Industrial Applicability]

[0046] The present disclosure is applicable to the manufacturing industry of activity monitoring systems. [Explanation of symbols]

[0047] 10 behavior monitoring system, 11 network, 20 management server, 21 processing unit, 22 communication unit, 23 memory unit, 30 monitoring device, 31 control unit, 32 communication unit, 33 display unit, 34 speaker, 35 power supply unit, 40 sensors, 41, 43, 51, 61, 71, 81 door sensor, 42a, 42b, 42c, 52, 62, 72 human presence sensor, 44 temperature sensor, 53 sleep sensor, 73 toilet faucet sensor, 142 motion capture camera.

Claims

1. A behavior monitoring system for monitoring the behavior of a monitoring target person living in a residence, comprising: A detection unit including an opening / closing detection sensor provided on each door separating each room of the residence and detecting opening / closing of the corresponding door, and a human detection sensor provided in each room and detecting the presence or absence of a human; a determination unit that determines that a person to be monitored is present in any one of the rooms of the residence based on the detection of opening and closing of a door of the room by a corresponding opening and closing detection sensor and the detection of a person by a person detection sensor provided in the room; a power supply control unit which, when the determination unit determines the room in which the monitored person is present, changes a mode of the detection units provided in rooms other than the room in which the monitored person is present from a normal mode to a power saving mode, and after changing the mode of the detection units provided in rooms other than the room in which the monitored person is present to the power saving mode, changes the mode of all of the detection units to the normal mode based on detection of opening and closing of a door to the room in which the monitored person is present by a corresponding opening and closing detection sensor; A behavior monitoring system comprising:

2. The behavior monitoring system according to claim 1 , The human detection sensor includes a status detection sensor that detects a status of an object installed in any room of the residence. Behavioral monitoring system.

3. The behavior monitoring system according to claim 2, The room of the residence includes a toilet room; The toilet room has a toilet bowl as an installation, The state detection sensor that detects the state of the toilet detects the operation of a flush lever or a flush switch of the toilet. Behavioral monitoring system.

4. The behavior monitoring system according to claim 2 or 3, The room has a refrigerator as an installation, a state detection sensor that detects a state of the refrigerator detects opening and closing of a door of the refrigerator or a change in temperature of the refrigerator; Behavioral monitoring system.

5. The behavior monitoring system according to any one of claims 1 to 4, The opening / closing detection sensor is also installed on an entrance door of the residence, the determination unit determines that the person to be monitored has gone out based on the opening and closing of the front door being detected by a corresponding opening and closing detection sensor in a state in which it has been determined that the person to be monitored is in any room of the residence, and determines that the person to be monitored has returned home based on the opening and closing of the front door being detected by a corresponding opening and closing detection sensor in a state in which it has been determined that the person to be monitored has gone out, the control unit sets the modes of the detection units other than an opening / closing detection sensor that detects the opening / closing of the front door to the power saving mode based on the determination that the person to be monitored has gone out, and changes the modes of all the detection units to the normal mode based on the determination that the person to be monitored has returned home. Behavioral monitoring system.

6. The behavior monitoring system according to any one of claims 1 to 5, A storage unit that stores a detection result of the detection unit; a comparison unit that extracts a behavior pattern of the monitored person from the stored detection results and compares the current behavior pattern with a past behavior pattern; A behavior monitoring system comprising:

7. The behavior monitoring system according to any one of claims 1 to 6, The human detection sensor includes a camera installed in any room of the residence, The camera is a motion capture camera for detecting the movement of the person being monitored. Behavioral monitoring system.

8. A power saving method for a behavior monitoring system that monitors behavior of a monitored person living in a residence, comprising: providing an opening / closing detection sensor for detecting the opening / closing of a door corresponding to each door separating each room of the residence, and providing a human detection sensor for detecting the presence or absence of a human in each room; determining that the monitored person is present in any one of the rooms of the residence based on the opening and closing of a door of the room being detected by a corresponding opening and closing detection sensor and a person being detected by a human detection sensor provided in the room; changing the modes of the opening and closing detection sensors and human detection sensors provided in rooms other than the room in which the monitored person is present from normal mode to power saving mode; and after changing the modes of the opening and closing detection sensors and human detection sensors provided in rooms other than the room in which the monitored person is present to power saving mode, changing the modes of all the opening and closing detection sensors and human detection sensors to the normal mode based on the opening and closing of the door of the room in which the monitored person is present being detected by the corresponding opening and closing detection sensor; How to save power.

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