Abnormality determination system

Abstract

To provide an abnormality determination system which enables adequate determination of whether or not an abnormality has occurred to an inhabitant, enables responding at an optimal timing (adjustable to a setting for each inhabitant according to an ordinary lifestyle or the like) in accordance with a situation of each inhabitant, without influencing the inhabitant's lifestyle, and which does not require activation or stopping.SOLUTION: An abnormality determination system 1 includes: an entry / exit detection device 2 for detecting door-opening of an entrance door of a residence H; a presence detection device 3 for detecting presence of an inhabitant T in at least one of a plurality of activation areas A inside the residence H; an information recording part 40 for recording door-opening information detected by the entry / exit detection device 2 and presence information 300 detected by the presence detection device 3, along a time axis TL; and an abnormality determination part 41 for determining whether or not an abnormality has occurred to the inhabitant T, on the basis of the recorded information recorded by the information recording part 40. Thereby, the abnormality determination system enables suitable measures to be taken for each inhabitant T.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an anomaly detection system that accurately detects an anomaly in a resident, thereby enabling an appropriate response. [Background technology]

[0002] In recent years, as the average age of the population increases year by year, the proportion of elderly people aged 65 or older living in apartment complexes and other housing is also increasing. In this situation, how to check for abnormalities occurring in elderly residents living alone has become an issue.

[0003] A system has previously been proposed that records combinations of resident behavior and the operation of specified equipment such as a thermos pot, detects each of them and determines whether they match the recorded pattern, and if they do not, determines that an abnormality has occurred to the resident and notifies them (see Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2001-034869 A Summary of the Invention [Problem to be solved by the invention]

[0005] In the past, the system required residents to start or stop the system themselves when entering or leaving the residence. However, since this is not part of the resident's normal lifestyle, they may forget to start or stop the system. This makes it impossible for the system to function effectively.

[0006] In addition, in conventional systems, if a person does not behave according to a pre-stored pattern, it may be determined that an abnormality has occurred even when no abnormality has occurred. Because there is a risk that a person will be reported if he or she behaves in a manner other than the pattern, the resident will limit his or her own activities, which affects the resident's lifestyle. In addition, from the perspective of the administrator, there is no way to know that the above-mentioned reports are false, so when a report is made, the administrator must go to the site.

[0007] For this reason, in practice, it has been necessary to set the time with a sufficient margin for determining whether or not an abnormality has occurred, for example, to be set to several hours or more. However, when an abnormality occurs, it is necessary to wait a long time before determining that an abnormality has occurred for the residents, and this can lead to the risk of rescue being too late.

[0008] To provide an abnormality determination system that can accurately determine whether an abnormality has occurred to a resident without affecting the resident's lifestyle, and can respond quickly at the optimal timing depending on the situation, without requiring startup or shutdown. [Means for solving the problem]

[0009] In light of the current situation, the inventor conducted extensive research and discovered that by combining detection of the opening of the front door, which is the entrance / exit, with detection of presence within the residence, it is possible to confirm whether a resident is leaving, returning home, or at home and to determine whether something unusual has happened to the resident, and it also becomes unnecessary to start or stop the system as in the conventional manner, and thus arrived at the present invention.

[0010] The anomaly determination system of the present invention comprises an entry / exit detection unit that detects the opening of an entrance / exit to a residence, a presence detection unit that detects the presence of a resident in at least one of a number of activity areas within the residence, an information recording unit that records the open door information detected by the entry / exit detection unit and the presence information detected by the presence detection unit along a time axis, and an anomaly determination unit that determines whether or not an abnormality has occurred to the resident based on the recorded information recorded by the information recording unit.

[0011] Such an anomaly detection system can accurately determine whether an abnormality has occurred with a resident without affecting the resident's lifestyle, and can respond at the optimal timing according to each resident's situation (by adjusting settings for each resident based on their usual lifestyle, etc.), and because it detects the presence of a resident, there is no need to start or stop the system.

[0012] The system further includes a behavior determination unit which determines the behavior of the resident in the residence based on the recorded information, wherein the behavior determination unit determines that the resident has gone out when the presence information and the open gate information are recorded in this order among the recorded information, determines that the resident has returned home when the open gate information and the presence information are recorded in this order, and determines that the resident has temporarily opened the gate when the presence information is recorded again within a predetermined interval after the presence information and the open gate information are recorded in this order, and the abnormality determination unit preferably determines whether or not an abnormality has occurred to the resident based on the behavior determination information determined by the behavior determination unit.

[0013] According to such an anomaly determination system, the behavior determination unit determines whether the resident has gone out, returned home, or been at home, and the anomaly determination unit can accurately determine whether or not something unusual has occurred with the resident.

[0014] It is also preferable that the system further includes an information analysis unit that analyzes the activity pattern of the resident based on the recorded information, and the abnormality determination unit determines whether or not an abnormality has occurred to the resident based on the activity pattern information analyzed by the information analysis unit.

[0015] According to such an anomaly detection system, the information analysis unit analyzes the activity patterns of the residents within the residence, and the anomaly detection unit can determine that an anomaly has occurred from the activity pattern information of the residents.

[0016] In addition, it is preferable that the anomaly determination unit sets an anomaly score indicating the degree of risk of an anomaly based on the recorded information, and determines whether or not an anomaly has occurred to the resident based on the anomaly score.

[0017] According to such an anomaly determination system, if the anomaly score does not reach a predetermined threshold value, it is not determined that something abnormal has happened to the resident, so that minor changes due to the resident's whims, etc., will not result in it being determined that something abnormal has happened to the resident.

[0018] In addition, it is preferable that the residence further comprises a questioning means for questioning the resident about whether or not something unusual has occurred and obtaining a response from the resident, and an imaging means for imaging at least one of the plurality of activity areas, and if no response can be obtained from the resident to the questioning by the questioning means, a situation confirmation unit is further provided which, after informing the resident that imaging will begin by the questioning means, begins imaging by the imaging means.

[0019] According to such an anomaly determination system, the manager can directly grasp the current state of the resident while respecting the resident's privacy by using the questioning means and image capturing means, so that the manager does not have to visit the site.

[0020] In addition, it is preferable that the home security system further comprises an entrance / exit control unit that performs an operation to unlock or lock the entrance when the abnormality determination unit determines that an abnormality has occurred with the resident.

[0021] Such an anomaly determination system can facilitate rescue of residents who have experienced an incident, and can restrict residents from leaving their homes due to suspected dementia or other conditions.

[0022] It is also preferable that the residence be provided with an alarm means near the entrance that allows the resident to notify the outside of the occurrence of an abnormality.

[0023] According to this type of abnormality determination system, even if an unexpected accident such as a fall at the entrance or a theft such as a burglary occurs when the gate is opened, help can be sought from outside by providing an alarm means near the entrance. Effect of the Invention

[0024] This makes it possible to accurately determine whether an abnormality has occurred with a resident without affecting the resident's lifestyle, and can respond at the optimal timing according to each resident's situation (by adjusting the settings for each resident based on their usual lifestyle, etc.), and provides an abnormality determination system that does not need to be started or stopped. [Brief description of the drawings]

[0025] [Figure 1] 1 is a block diagram showing an example of the configuration of an anomaly determination system according to an embodiment of the present invention. [Diagram 2] 2 is a schematic diagram showing a residence in which the anomaly detection system shown in FIG. 1 is installed. [Diagram 3] 3 is a flowchart illustrating a series of operations in the anomaly detection system shown in FIG. 2. [Figure 4] 3 is a schematic diagram showing recorded information in the anomaly detection system shown in FIG. 2. [Diagram 5] 13 is a schematic diagram showing recorded information when something unusual happens to a resident. FIG. [Figure 6] 11 is a graph showing analysis information of the information analysis unit based on the recorded information. [Figure 7] 13 is a flowchart showing operations to be performed after it is determined that something unusual has happened to a resident. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] Hereinafter, an embodiment of the anomaly determination system according to the present invention will be described with reference to the drawings. Note that components with the same reference numerals in each drawing are the same, and their description will be omitted. Fig. 1 is a schematic diagram showing an example of the configuration of an anomaly determination system according to one embodiment of the present invention.

[0027] The anomaly determination system 1 shown in FIG. 1 includes an entrance / exit detection device 2, which is an entrance / exit detection unit provided in, for example, a residence H, a presence detection device 3, which is a presence detection unit, a server device 4, and an administrator terminal 9. As described later, the entrance / exit detection device 2 is provided at an entrance / exit G of the residence H through which a resident T enters and exits, and detects the opening of the entrance / exit G, for example, the front door. The entrance / exit detection device 2 is preferably a multi-factor authentication device that identifies the resident T by reading, for example, one or more of the resident T's possession information such as a mobile terminal or IC card, knowledge information such as a password or PIN code, and biometric information such as a fingerprint or voiceprint. In addition, if the resident T is an elderly person, assuming memory disorders associated with age such as forgetfulness, an authentication device that identifies the resident T only using biometric information without using possession information or knowledge information is preferable.

[0028] The presence detection device 3 is preferably a human presence sensor that uses infrared rays, ultrasound, etc., and since it reacts to the movement of a resident T, who is a heat source within the residence H, or any action within the residence H, at least one is provided in each activity area A to detect a resident T.

[0029] The entrance / exit detection device 2 and the presence detection device 3 are each connected to the server device 4 via a network 6 so as to be capable of transmitting data, and transmit the open gate information 200 and the presence information 300 detected by the entrance / exit detection device 2 and the presence detection device 3, respectively. The network 6 may be various communication means such as the Internet, a public telephone line, a mobile communication network, a LAN (Local Area Network), WiFi (registered trademark), etc., or may be a combination of these communication means, and may be configured as a wired or wireless communication, or a combination of wired and wireless communication. The administrator terminal 9 may be an information processing device such as a so-called personal computer, a smartphone, a tablet terminal, etc., and is connected to the server device 4 via the network 6 so as to be capable of transmitting and receiving data.

[0030] The server device 4 is configured to include, for example, a central processing unit (CPU) that executes a predetermined calculation process, a random access memory (RAM) that temporarily stores data, a non-volatile storage device 5 such as a hard disk drive (HDD) or a solid state drive (SSD) that stores a program for executing an anomaly determination system that determines whether an anomaly has occurred in the resident T, a communication circuit, and its peripheral circuits. The server device 4 executes the program stored in the storage device 5, and thus an information recording unit 40, an anomaly determination unit 41, a behavior determination unit 42, an information analysis unit 43, a situation confirmation unit 44, and an entrance / exit control unit 45 each function as information processing for implementing the anomaly determination system 1. The storage device 5 also functions as a storage unit that stores information in the anomaly determination system 1.

[0031] Although the storage device 5 is included in the server device 4, it may not be included in the server device 4, but rather a non-volatile storage device, for example, configured using an HDD or SSD, may be provided separately and made accessible from the server device 4.

[0032] The information recording unit 40 records the open gate information 200 detected by the entrance / exit detection device 2 and the presence information 300 detected by the presence detection device 3 along a time axis TL that diagrams the passage of time. The recorded information 400 recorded by the information recording unit 40 is stored in the storage device 5. For example, when a resident T leaves the door where the entrance / exit detection device 2 is installed at the entrance / exit G open, or when the resident T continues to work in an activity area where the presence detection device 3 is installed, and the open gate information 200 and the presence information 300 are continuously detected by the entrance / exit detection device 2 or the presence detection device 3, the information recording unit 40 may record the entire period during which the open gate information 200 and the presence information 300 are continuously detected, or may record only the time when the open gate information 200 and the presence information 300 are first detected.

[0033] The anomaly determination unit 41 determines whether an anomaly has occurred in the resident T based on the recorded information 400. For example, the anomaly determination unit 41 sets an anomaly determination condition in advance based on the size of the residence H and the physical ability of the resident T when the resident T performs daily activities. The anomaly determination condition includes a stay time in an activity area A, a travel time required to move between each activity area A, a predetermined detection interval between a plurality of presence information 300 detected in the current activity area A, and between presence information 300 detected in the current activity area A and presence information 300 detected in the next activity area A. The predetermined detection interval may be set according to each activity area A and time period.

[0034] For example, if the time period is a bedtime period and the activity area is a bedroom, since resident T is expected to go to bed, the anomaly determination condition can be set to a stay time of 10 hours or less when the resident goes to bed. Also, since the frequency of detecting activity in the bedroom is during bedtime, and since behavior such as turning over in sleep is expected to decrease, the anomaly determination condition can be set to a detection interval of 1 hour or less for the presence information 300.

[0035] Therefore, the abnormality determination unit 41 determines whether or not an abnormality has occurred with the resident T depending on whether or not the abnormality determination condition has been violated based on the open gate information 200 and the presence information 300 recorded in the record information 400. Note that the abnormality determination condition is not limited to one, but may be multiple, and may be a certain range with upper and lower limits.

[0036] The behavior determination unit 42 determines the behavior of the resident T at the residence H based on the recorded information 400. The behavior determination unit 42 determines whether the resident T has gone out of the residence H, whether the resident has returned to the residence H, or whether the resident has only temporarily opened the gate, based on the order in which the gate opening information 200 and the presence information 300 in the recorded information 400 were recorded along the time axis TL.

[0037] When the presence information 300 and the gate opening information 200 are recorded in this order in the record information 400, the behavior determination unit 42 determines that the resident T has gone out from the residence H. When the gate opening information 200 and the presence information 300 are recorded in this order in the record information 400, the behavior determination unit 42 determines that the resident T has returned home to the residence H. When the presence information 300 and the gate opening information 200 are recorded in this order in the record information 400, and then the presence information 300 is recorded again within a predetermined interval, the behavior determination unit 42 determines that the resident T has temporarily opened the gate. In this way, the anomaly determination unit 41 can improve the accuracy of determining whether or not an anomaly has occurred to the resident by taking into account the behavior determination information 420 determined by the behavior determination unit 42. In addition, the behavior determination information 420 determined by the behavior determination unit 42 may be recorded in the record information 400 as the resident T's going out, temporary opening of the gate, and returning home determined based on the behavior determination information 420, or the behavior determination information 420 may be stored in the storage device 5 without being recorded in the record information 400.

[0038] Furthermore, the anomaly determination unit 41 sets an anomaly score indicating the degree of possibility of an anomaly based on the recorded information 400. The anomaly determination unit 41 determines that an anomaly has occurred in the resident T when the anomaly score reaches a predetermined score threshold. The anomaly score is set according to the degree of deviation from the anomaly determination condition described above. The greater the deviation from the anomaly determination condition, the larger the anomaly score. Furthermore, even if the anomaly score is small, if deviation from the anomaly determination condition is repeated multiple times within a predetermined period, it may be determined that an abnormality has occurred in the resident T according to the accumulation of the anomaly scores. In this way, by using the anomaly score, the anomaly determination unit 41 reduces the occurrence of a mistaken determination that an abnormality has occurred due to a minor change in the resident that is different from normal. The anomaly score is stored in the storage device 5 separately from the recorded information 400. When the anomaly determination unit 41 has finished making a determination, the cumulative anomaly score up to that point may be deleted from the storage device 5 and the anomaly score may be newly accumulated.

[0039] The information analysis unit 43 analyzes the activity pattern of resident T, which is the lifestyle of resident T, based on the recorded information 400. Activity pattern information 431 of resident T analyzed by the information analysis unit 43 is stored in the storage device 5 separately from the recorded information 400. This reflects that resident T performs different lifestyle activities only under specific conditions or during specific time periods, thereby reducing false alarms caused by differences in lifestyle.

[0040] If the anomaly determination unit 41 determines that an anomaly has occurred with the resident T, the situation confirmation unit 44 uses an interrogation means and an imaging means provided in the residence H to confirm the situation of the resident T at the residence H. The interrogation means asks the resident T whether an anomaly has occurred and obtains a response from the resident T, and the imaging means images at least one of the multiple activity areas A. If no response is obtained to the interrogation by the interrogation means, the situation confirmation unit 44 again transmits, via the interrogation means, a message that imaging will be performed by the imaging means, and then starts imaging by the imaging means. The image captured by the imaging means is displayed on the administrator terminal 9.

[0041] The entrance / exit control unit 45 performs an operation to lock or unlock the entrance / exit G when the abnormality determination unit 41 determines that an abnormality has occurred with the resident T. Normally, the resident T locks the door from inside the residence H, and when an abnormality occurs with the resident T, the entrance / exit control unit 45 can unlock the entrance / exit G of the residence H or transmit an unlocking password from the entrance / exit control unit 45 to the administrator terminal 9.

[0042] Fig. 2 is a schematic diagram showing a plan view of a residence H in which an anomaly detection system according to the present invention has been installed. As shown in Fig. 2, the residence H is made up of an entrance, a toilet, a dressing room, a bathroom, a passageway, a veranda, and a Western-style room, and the Western-style room includes a kitchen space, a combined dining and living space, and a sleeping space. These spaces can be divided into the entrance and passageway as activity area A1, the toilet as activity area A2, the kitchen space as activity area A3, the combined dining and living space as activity area A4, the veranda as activity area A5, the sleeping space as activity area A6, the dressing room as activity area A7, and the bathroom as activity area A8.

[0043] Further, the residence H is provided with a plurality of situation confirmation devices AD, including a speaker (not shown) that asks the resident T whether or not an abnormality has occurred, a microphone (not shown) that acquires the resident T's response to the question, and a camera (not shown) that captures an image of one of the activity areas A1 to A8 where the presence of the resident T, where an abnormality may have occurred, was last confirmed. Note that the speaker, microphone, and camera may each be a device that supports 360° in all directions. Also, each may be provided individually in the residence H, instead of being integrated into one device like the situation confirmation device AD.

[0044] The entrance / exit detection device 2 is provided at the entrance G so as to be able to identify whether the resident T has opened the door when entering the residence H or when leaving the residence H. For example, as shown in FIG. 2, the entrance / exit detection device 2 is a biometric authentication device using face recognition, and is provided at the front door.

[0045] The presence detection device 3 is provided on the ceiling of each of the activity areas A1 to A8. For example, as shown in Fig. 2, the presence detection device 3 is a human sensor that uses infrared rays, and when the space is large or long and narrow, such as the activity area A4 or activity area A5, multiple presence detection devices 3 are provided to reduce the occurrence of dead space where the resident T cannot be detected.

[0046] In order to reduce the possibility that the resident T cannot hear the call or cannot be imaged in a dead space, at least one situation confirmation device AD ​​is provided in each space separated by a wall or door in the residence H. As shown in Fig. 2, one situation confirmation device AD ​​is provided in each of the activity areas A2, A5, A7, and A8, which are spaces separated by walls or doors, whereas only one situation confirmation device AD ​​is provided in each of the activity areas A1, A3, A4, and A6, which are spaces not separated by walls or doors.

[0047] A series of operations of the anomaly detection system 1 according to the present invention in a residence H under normal circumstances will be described. Fig. 3 is a flow chart illustrating a series of operations in the anomaly detection system 1 shown in Fig. 2. Fig. 4 is a schematic diagram showing recorded information 400 in the anomaly detection system 1 shown in Fig. 2.

[0048] When the resident T returns home from outside the residence H, the entrance / exit detection device 2 detects the gate opening information 200, and then the presence detection device 3 installed in the activity area A1 adjacent to the entrance / exit G detects the presence information 300, and the behavior determination unit 42 determines that the resident T has returned home (step S01). At this time, as shown in FIG. 4, the information recording unit 40 records the gate opening information 200 detected from when the front door is opened to when it is closed, and the presence information 300 detected when the presence of the resident T is detected in the activity area A1, in an overlapping manner on the time axis TL. The behavior determination unit 42 determines that the resident T has returned home based on the recorded information 400 in which the gate opening information 200 and the presence information 300 are stored in this order by the information recording unit 40. The information recording unit 40 reflects the behavior determination information 420 on the time axis TL.

[0049] When resident T performs daily activities in residence H, he moves from activity area A1 to other activity areas A2 to A8, and the presence detection devices 3 installed in activity areas A1 to A8 detect the presence of resident T (step S02). At this time, the information recording unit 40 continuously records the presence information 300 detected by the presence detection devices 3 installed in activity areas A1 to A8 in sequence on the time axis TL. In addition, between activity areas that are not separated by a wall or door, such as activity area A3 and activity area A4, the presence information 300 may be detected simultaneously by the presence detection devices 3 installed in both activity areas, and in this case, too, the presence information 300 is recorded on the time axis TL in an overlapping manner.

[0050] When the resident T goes out from the residence H, the presence detection device 3 installed in the activity area A1 detects the presence information 300, and then the entrance / exit detection device 2 detects the gate opening information 200, and the behavior determination unit 42 determines that the resident T has gone out (step S03). At this time, as shown in FIG. 4, the information recording unit 40 records the presence information 300, which detects the presence of the resident T in the activity area A1, and the gate opening information 200, which is detected from when the front door is opened to when it is closed, in an overlapping manner on the time axis TL. The behavior determination unit 42 determines that the resident T has gone out based on the recorded information 400 in which the presence information 300 and the gate opening information 200 are stored in this order by the information recording unit 40. The information recording unit 40 reflects the behavior determination information 420 on the time axis TL.

[0051] A description will now be given of how the abnormality determination unit 41 according to the present invention determines that an abnormality has occurred with the resident T from the open gate information 200 and the presence information 300 recorded along the time axis TL.

[0052] As an example of an incident occurring to resident T, a case will be described in which an incident occurs immediately after resident T returns home from outside residence H through entrance / exit G. Assuming that an incident has occurred to resident T that has impeded his / her activities, first, gate opening information 200 and presence information 300 are detected by entrance / exit detection device 2 provided at entrance / exit G and presence detection device 3 provided in activity area A1, respectively. Information recording unit 40 also records that gate opening information 200 and presence information 300 have been detected in that order, and behavior determination unit 42 determines that resident T has returned home.

[0053] At this time, if the resident T who experienced the abnormality is conscious, he or she can press the emergency button, which is a notification means provided near the entrance / exit G, to not only notify the manager terminal 9 or the management company, but also to call for help from the emergency call center and to notify the surrounding area outside the residence H of the abnormality by using a rotating light or an alarm sound. The emergency button, which is a notification means, can also be used to notify the police and to prevent burglaries and the like.

[0054] Fig. 5 is a schematic diagram showing recorded information 400 when something unusual happens to a resident T. If the resident T who has experienced an unusual event loses consciousness and collapses, the information recording unit 40 records the open gate information 200 and the presence information 300 shown in Fig. 5(a) or Fig. 5(b) on the time axis TL.

[0055] If the resident T collapses unconscious but makes a movement such as convulsions, as shown in FIG. 5(a), the presence information 300 detected by the presence detection device 3 installed in the activity area A1 is continuously recorded on the time axis TL. For example, the anomaly determination unit 41 sets the anomaly determination condition to be staying in the activity area A1 for 10 minutes or more. In this case, the anomaly determination unit 41 sets the anomaly determination condition according to how much the anomaly determination condition is exceeded. The anomaly determination unit 41 accumulates the anomaly scores based on the anomaly determination condition. When the anomaly score reaches a predetermined threshold, the anomaly determination unit 41 notifies the administrator terminal 9 that an anomaly has occurred in the resident T.

[0056] When the resident T collapses unconscious and does not move at all, as shown in FIG. 5(b), the presence information 300 is not recorded from the time point when the resident T collapses. For example, the anomaly determination unit 41 sets an anomaly determination condition that the presence information 300 or the gate opening information 200 is not recorded on the time axis TL for 10 minutes or more even though the behavior determination unit 42 determines that the resident T has returned home. In this case, too, an anomaly score is set depending on how much the anomaly determination condition is exceeded. The anomaly determination unit 41 accumulates the anomaly scores based on the anomaly determination condition. When the anomaly score reaches a predetermined threshold, the anomaly determination unit 41 notifies the administrator terminal 9 that an anomaly has occurred in the resident T.

[0057] In addition, when analyzing the activity pattern information 431, the information analysis unit 43 can analyze locations or events from the recorded information 400 that occurred more than a predetermined period of time after the presence of resident T was detected or after it was determined that resident T had gone out.

[0058] Fig. 6 is a graph showing analysis information 430 of the information analysis unit 43 based on the record information 400. The analysis information 430 shown in Fig. 6 is a graph showing the stay period in the activity areas A1 to A8 that is 30 minutes or more after the presence of the resident T is detected in the record information 400, or the out-of-home period that is 30 minutes or more after the out-of-home of the resident T is determined.

[0059] FIG. 6 is expressed in 24-hour units. The horizontal axis of FIG. 6 is a chronological arrangement of locations (any of the activity areas A1 to A8) or events (outing OS) detected by 23:59 on the day, starting from 0:00 AM on the day. The vertical axis of FIG. 6 represents the time lapse from detection to end of detection for each location or event arranged on the horizontal axis. If there is no record information 400 in which the resident T is detected in another location or the event is ended, the analysis information 430 continuously shows the elapsed time of the location or event. In addition, if the date and time are crossed, the analysis information 430 is shown up to 23:59 PM as the analysis information of the day, and the analysis information 430 is shown after that as the analysis information of the next day.

[0060] An example of the analysis information 430 when no abnormality has occurred with respect to the resident T is as shown in Fig. 6(a). The analysis information 430 as shown in Fig. 6(a) is stored in the storage device 5. When the analysis information 430 is accumulated and reaches a predetermined amount of information, the information analysis unit 43 analyzes the activity pattern information 431 based on the analysis information 430 accumulated in the storage device 5. An example of the activity pattern information 431 is also as shown in Fig. 6(a). Since the presence of the resident T has been detected in the activity area A6 for 8 hours, the activity pattern information 431 of the resident T includes the period up to the time when the resident T went out for 2 hours in the out-of-home OS.

[0061] The anomaly determination unit 41 can change the anomaly determination conditions or adjust the anomaly score, which are set in advance in the anomaly determination unit 41, based on the activity pattern information 431 that reflects the lifestyle of the resident T. This can reduce false alarms that may result in an anomaly being determined to have occurred in the resident T due to individual differences in lifestyle.

[0062] Furthermore, the anomaly determination unit 41 can determine an anomaly in the resident T based on the activity pattern information 431 in addition to the anomaly determination conditions. FIG. 6(b) shows an example of a case where an anomaly occurs in the resident T for which the activity pattern information 431 shown in FIG. 6(a) has been analyzed. From the analysis information 430 shown in FIG. 6(b), it can be inferred that the resident T went out during the day. Although more than 10 hours have passed since it was determined that the resident T went out, the return of the resident T, which would be the end of the outing, has not been determined, so the elapsed time is continuously shown.

[0063] For example, if the abnormality determination condition is set in advance such that if resident T has been out during the day, an abnormality is determined to have occurred if 10 hours or more have passed, then the abnormality determination unit 41 determines that an abnormality has occurred in resident T at this point in time. However, based on the activity pattern information 431 shown in FIG. 6(a) analyzed by the information analysis unit 43, resident T usually returns home within two hours even if he or she goes out during the day, so the abnormality determination unit 41 can determine that an abnormality has occurred in resident T at an earlier stage than when the abnormality determination condition determines that an abnormality has occurred in resident T. This allows for early response to the abnormality that has occurred in resident T.

[0064] Therefore, the anomaly determination unit 41 according to the present invention is not only provided with anomaly determination conditions for determining that an anomaly has occurred for each activity area A1 to A8, but also determines whether an anomaly has occurred in the resident T based on the anomaly score and activity pattern information 431. As a result, it is possible to accurately determine whether an anomaly has occurred in the resident T, making it possible to respond appropriately at the optimal timing according to the situation of each resident (the setting can be varied for each resident T based on the normal lifestyle, etc.).

[0065] A series of operations will be described after the anomaly detection system 1 according to the present invention has determined that an anomaly has occurred in the resident T. Fig. 7 is a flowchart showing the operations after it has been determined that an anomaly has occurred in the resident T.

[0066] When it is determined that something has happened to the resident T, as shown in FIG. 7, the situation confirmation unit 44 uses the speaker included in the situation confirmation device AD ​​to ask the resident T whether or not something has happened, such as "Have you noticed anything unusual in your physical condition?" (step S21). At this time, if a response is obtained from the microphone from the resident T denying the occurrence of any abnormality, such as "I'm fine" or "There is nothing unusual," the abnormality determination system 1 returns to normal operation (step S21 is No). The questioning through the speaker may be repeated several times, not just once. If there is no response after a certain period of time has passed since the questioning, or if a groan or the like is obtained from the microphone (step S22 is Yes), regardless of whether or not there is a response, the speaker notifies the resident T that imaging will begin (step S23), and imaging begins for the activity areas A1 to A8 last recorded in the record information 400 (step S24). Note that voice data asking the resident T whether or not something has happened may be stored in advance in the storage device 5, and the situation confirmation unit 44 may broadcast this voice data from the speaker.

[0067] Images of the activity areas A1-A8 where the presence of the resident T was last confirmed, captured by the camera included in the situation confirmation device AD, are displayed on the administrator terminal 9 (step S25). This completes the series of operations that occur after the anomaly determination system 1 according to the present invention determines that an anomaly has occurred with the resident T.

[0068] The information recording unit 40 may reflect in the recorded information 400 that the anomaly determination unit 41 has determined that an anomaly has occurred in resident T, or may also record in the recorded information 400 the fact that no anomaly has occurred as a result of the situation confirmation unit 44 asking resident T whether an anomaly has occurred. In this way, the anomaly determination system 1 according to the present invention updates the activity pattern information 431 of the information analysis unit 43 based on the recorded information 400, or changes the setting of the anomaly score based on the recorded information 400, thereby improving the accuracy of the determination by the anomaly determination unit 41 as to whether an anomaly has occurred in resident T.

[0069] In addition, the recorded information 400 stored in the storage device 5 by the information recording unit 40 can also be used as an index for considering the health condition of the resident T. For example, it can be discovered from the recorded information 400 that the resident T has difficulty staying in a certain activity area or wanders around at night. Such information can provide clues as to whether the resident T has dementia.

[0070] Thereafter, if resident T is diagnosed with dementia based on the recorded information 400, not only can it be determined whether something unusual has happened to resident T, but the abnormality determination system 1 of the present invention can also control the opening and closing of the front door using the entrance / exit control unit 45.

[0071] Furthermore, the abnormality determination system 1 of the present invention may be combined with a well-known communication means such as installing a security camera in the entry / exit detection device 2 that captures images of the area around the entrance / exit G outside the residence H, or directly reporting to a manager or the police in the activity area A1 immediately after entering through the entrance / exit G.

[0072] Although the embodiment of the present invention has been described above, the present invention is not limited to these embodiments, and it is of course possible to carry out the present invention in various forms without departing from the gist of the present invention. [Explanation of symbols]

[0073] 1. Anomaly Detection System 2. Entry and exit detection device 3 Presence detection device 4. Server equipment 5 Storage device 6 Network 9. Administrator terminal 40 Information Recording Section 41 Abnormality Judgment Department 42 Behavior Judgment Department 43 Information Analysis Department 44 Status Check Department 45 Entrance / Exit Control Unit 200 Opening information 300 Presence information 400 Record Information 420 Action Judgment Information 430 Analysis information 431 Activity Pattern Information A1~A8 Activity Area AD status check device G Entrance H Residence OS going out T Resident TL Timeline

Claims

1. an entrance / exit detection unit that detects the opening of an entrance / exit of the residence; a presence detection unit configured to detect the presence of a resident in at least one of a plurality of activity areas within the residence; an information recording unit that records gate opening information detected by the entrance / exit detection unit and presence information detected by the presence detection unit along a time axis; An anomaly determination system comprising: an anomaly determination unit that determines whether or not an anomaly has occurred to the resident based on the recorded information recorded by the information recording unit.

2. a behavior determination unit that determines a behavior of the resident in the residence based on the recorded information, The behavior determination unit is configured to determine, among the recorded information, When the presence information and the gate opening information are recorded in that order, it is determined that the resident has gone out; When the opening information and the presence information are recorded in that order, it is determined that the resident has returned home; If the presence information is recorded again within a predetermined interval after the presence information and the gate opening information are recorded in that order, it is determined that the resident has temporarily opened the gate; The anomaly determination system according to claim 1 , wherein the anomaly determination unit determines whether or not an anomaly has occurred to the resident based on behavior determination information determined by the behavior determination unit.

3. An information analysis unit that analyzes an activity pattern of the resident based on the recorded information, The anomaly detection system according to claim 1 , wherein the anomaly detection unit determines whether or not an anomaly has occurred in the resident based on the activity pattern information analyzed by the information analysis unit.

4. The anomaly determination unit sets an anomaly score indicating a degree of anomaly risk based on the recorded information, The anomaly determination system according to claim 3 , further comprising: determining whether or not an anomaly has occurred to the resident based on the anomaly score.

5. The residence is provided with an inquiry means for inquiring about the presence or absence of an abnormality to obtain a response from the resident, and an imaging means for imaging at least one of the plurality of activity areas; The anomaly determination system of claim 4, further comprising a situation confirmation unit that, if no response is obtained from the resident to the query made by the querying means, informs the resident that imaging will begin using the querying means, and then begins imaging using the imaging means.

6. The anomaly determination system according to claim 5 , further comprising an entrance / exit control unit that performs an operation to unlock or lock the entrance when the anomaly determination unit determines that an abnormality has occurred in the resident.

7. 7. The anomaly determination system according to claim 6, wherein the residence is provided with a notification means near the entrance for the resident to notify the outside of the occurrence of an anomaly.

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