JP2018120455A - Monitoring system and center device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a monitoring system for detecting change of health condition of a user, and a center device.SOLUTION: A monitoring system includes: a monitoring device disposed in an object to be monitored, to transmit an abnormal signal corresponding to an emergency signal output in response to user operation; and a center device disposed in a monitoring center to receive the abnormal signal. The center device includes an analysis unit which analyzes occurrence frequency of the abnormal signal, to perform determination relating to the change of health condition of the user.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a monitoring system and a center device.

  In recent years, an aging society is progressing, and the number of households living only by elderly people is increasing. If these elderly people have signs of illness but are not aware of anyone around them, it is possible that they will become more serious.

  For this reason, there is an increasing need to confirm the safety of elderly parents who live far away. For example, in Patent Document 1, a door sensor is attached to a door of an elderly house, a water flow sensor is attached to a toilet, or a human body detection sensor is attached to a ceiling of a toilet. The behavior can be confirmed.

JP 2000-123273 A

  However, in the above-mentioned Patent Document 1, it is only possible to confirm whether or not a certain level of daily activities can be performed. For example, you can only check whether you are going out from the situation of the door sensor, whether you are using a toilet from the water flow sensor, whether you are using a toilet from the human body detection sensor, etc. It is impossible to grasp that the level of daily activity is gradually decreasing, and it is impossible to detect a change in health status.

  The present invention has been made in view of such problems, and an object thereof is to provide a monitoring system and a center apparatus that can detect a change in the health state of a user.

According to one aspect of the present invention, a monitoring device that is installed in a monitoring target and that transmits an abnormal signal according to an emergency signal that is output in response to a user's operation, and that is installed in a monitoring center and receives the abnormal signal. A monitoring system comprising: an analyzing unit that analyzes the frequency of occurrence of the abnormal signal and makes a determination regarding a change in the health condition of the user. Is done.
By analyzing the frequency of occurrence of abnormal signals, it is possible to detect changes in the user's health condition.

  The analysis unit may determine that there is a change in the health state of the user when the increasing tendency of the abnormal signal satisfies a predetermined condition.

  The center device includes an alarm type setting unit that sets whether the abnormal signal is a real alarm or a false alarm, and the analysis unit includes the abnormal signal that is set as a false alarm among the abnormal signals. The determination may be made by analyzing the frequency of occurrence of.

  The emergency signal may be output from an emergency button installed on the monitoring target or an emergency terminal portable by the user.

  The analysis unit may perform the determination in consideration of the attribute information of the user. The attribute information may include an age and / or family structure of the user.

  The monitoring device can be set to any one of a plurality of modes including a home security mode for manned time and a security set mode for going out, and a security mode signal indicating the set mode is set in the center device The analysis unit may perform the determination based on the security mode signal and also considering the setting status of the security mode signal.

According to another aspect of the present invention, there is provided a center device that receives an abnormal signal according to an emergency signal output in response to a user's operation from a monitoring device installed in a monitoring target, wherein the abnormality A center device is provided that has an analysis unit that analyzes the frequency of signal generation and makes a determination regarding a change in the health condition of the user.
By analyzing the frequency of occurrence of abnormal signals, it is possible to detect changes in the user's health condition.

  By analyzing the occurrence frequency of false alarms by the user over a long period, among abnormal signals received from a plurality of types of sensors installed on the monitoring target, it is possible to detect changes in the user's health condition.

The schematic diagram which shows schematic structure of a security system. FIG. 2 is a block diagram showing a schematic configuration example of a sensor 11 and a monitoring device 12 installed on a monitoring target 100. The figure explaining the relationship between a detection signal and security mode. FIG. 2 is a block diagram showing a schematic configuration example of a center device 21 installed in a monitoring center 200. The figure which shows an example of an alarm information table. The figure which shows typically an example of the generation | occurrence | production number (FIG. 6 (a)) of the abnormal signal set as a false alarm, and its increase rate (FIG.6 (b)).

  Embodiments according to the present invention will be specifically described below with reference to the drawings.

  FIG. 1 is a schematic diagram showing a schematic configuration of a security system. As illustrated, one or a plurality of monitoring targets 100 and a monitoring center 200 are connected via a network. The monitoring target 100 may be an arbitrary living area such as a dwelling unit, a store, or a business office. The monitoring center 200 is a facility operated by a security company or the like, and a monitor constantly monitors whether there is an abnormality in the monitoring target 100. The security system includes a plurality of types of sensors 11 and monitoring devices 12 installed in each monitoring target 100, and a center device 21 installed in the monitoring center 200.

  FIG. 2 is a block diagram illustrating a schematic configuration example of the sensor 11 and the monitoring device 12 installed in the monitoring target 100.

  When the sensor 11 detects a predetermined phenomenon, the sensor 11 outputs a detection signal or an emergency signal to the monitoring device 12. The sensor 11 includes a fire prevention sensor 111 such as a fire detection sensor 1111 and a gas detection sensor 1112, a human body detection sensor 1121, a crime prevention sensor 112 such as an open / close detection sensor 1122 and a destruction detection sensor 1123, and an emergency button 1131 and an emergency terminal 1132. The emergency call device 113 may be included.

  The fire detection sensor 1111 in the disaster prevention sensor 111 is installed in the monitoring target 100 and outputs a detection signal when a predetermined amount of heat is detected within a predetermined time or a detection signal when a predetermined amount of smoke is detected within a predetermined time. Is output. The gas detection sensor 1112 is installed in the monitoring target 100 and outputs a detection signal when a predetermined gas amount is detected within a predetermined time.

  Such a disaster prevention sensor 111 outputs a detection signal after a relatively long time has elapsed since a predetermined phenomenon (for example, generation of heat, smoke, or gas) is detected in order to suppress erroneous detection. For example, the fire detection sensor 1111 outputs a detection signal when smoke or heat is continuously detected for 30 seconds or more. In this sense, it can be said that the disaster prevention sensor 111 is a sensor that is difficult to issue.

  The human body detection sensor 1121 in the security sensor 112 is installed in or around the monitoring target 100 and outputs a detection signal when a human body is detected within a predetermined monitoring range. The open / close detection sensor 1122 is installed in a window, a door, or the like, and outputs a detection signal when such opening / closing is detected. The destruction detection sensor 1123 is installed on a window or a wall of the monitoring target 100, and outputs a detection signal when such destruction is detected.

  Such a security sensor 112 outputs a detection signal immediately after detecting a predetermined phenomenon (for example, intrusion of a person, opening / closing or destruction of a window) (or after a relatively short time has passed). In this sense, it can be said that the security sensor 112 is an easy-to-report sensor.

  The detection signal from the disaster prevention sensor 111 or the security sensor 112 includes information (sensor ID) indicating which of the sensors 11 is derived.

  An emergency button 1131 in the emergency notification device 113 is installed on a wall or the like in the monitoring target 100, and outputs an emergency signal when detecting an operation (for example, button pressing) by a user. The emergency terminal 1132 is carried by the user, and outputs an emergency signal when an operation (for example, long press) by the user is detected. Such an emergency call device 113 is a sensor that requires an active operation by a user.

  The emergency signal from the emergency call device 113 includes information (user ID) indicating which user's emergency button 1131 or emergency terminal 1132 is derived in addition to the sensor ID.

  The monitoring device 12 is used for so-called home security, and includes a timer unit 121, a sensor interface 122, an operation unit 123, a display unit 124, a control unit 125, a storage unit 126, a communication unit 127, and the like. The monitoring device 12 may be composed of a plurality of devices, and each component may be distributedly installed in the monitoring target 100.

The time measuring unit 121 measures the current date and time and day of the week, and generates time information.
The sensor interface 122 connects each sensor 11 and the control unit 125 in a wired or wireless manner, receives a detection signal or an emergency signal from each sensor 11, and notifies the control unit 125 of it. When the sensor interface 122 receives the detection signal or the emergency signal, the sensor interface 122 stores the detection signal or the emergency signal in the detection information table in the storage unit 126 in association with the reception date and time or the sensor ID (or the user ID in the case of an emergency signal).

  The operation unit 123 is a touch panel or the like and receives an operation from a user. The display unit 124 is a liquid crystal display or the like, and displays an operation screen or the like in the monitoring device 12.

  As an example, the operation unit 123 may be configured by a liquid crystal touch panel display in which the display unit 124 is integrally configured, and an IC card reader. When the IC card reader reads the user's IC card, collation with the collation information stored in advance in the storage unit 126 is performed. If authenticated, the operation on the liquid crystal touch panel display by the user is permitted. Operation symbols for various inputs are displayed on the liquid crystal touch panel display, and a signal is input to the control unit 125 when the user selects a symbol.

  The operation unit 123 may include a cancel button. Depending on the type of sensor 11, if the user accidentally outputs a detection signal or an emergency signal, the user can press the cancel button within a predetermined time. In this case, an abnormal signal (described later) corresponding to the detection signal or the emergency signal is not transmitted to the monitoring center 200.

  The control unit 125 includes a microcomputer including a processor, a ROM (Read Only Memory), a RAM (Random Access Memory), and the like, and its peripheral circuits, and controls the entire monitoring device 12. In addition, the mode setting unit 1251, the abnormality determination unit 1252, and the cancel processing unit 1253 are realized by the processor in the control unit 125 executing a predetermined program.

  The mode setting unit 1251 sets a security mode based on a user operation on the operation unit 123 and stores the security mode in the storage unit 126. Further, the mode setting unit 1251 transmits a security mode signal indicating the set security mode from the communication unit 127 to the center device 21. In the present embodiment, it is assumed that the security mode can be set to any one of the following “security release mode”, “security set mode”, and “home security mode”.

Security release mode: set when the monitoring target 100 is manned, and does not perform intrusion monitoring.
Security set mode: set when the monitoring target 100 is unattended, and performs intrusion monitoring.
Home security mode: set when the monitoring target 100 is manned, and performs intrusion monitoring by some sensors 11.

  As an example of setting each security mode, the user is set to the security set mode when going out of the monitoring target 100, set to the security release mode when there is frequent entry or exit such as during the day, and at home such as at night. When it is necessary to guard the surroundings of the monitoring target 100, the home security mode is set.

  When the abnormality determination unit 1252 receives the detection signal, the abnormality determination unit 1252 determines whether or not an abnormality has occurred with reference to the security mode stored in the storage unit 126.

FIG. 3 is a diagram illustrating the relationship between the detection signal and the security mode.
When a detection signal from the disaster prevention sensor 111 or the destruction detection sensor 1123 such as the fire detection sensor 1111 or the gas detection sensor 1112 is received, the abnormality determination unit 1252 determines that an abnormality has occurred in the monitoring target 100 regardless of the security mode. The sensor 11 that is determined to be abnormal regardless of the security mode is designated in advance.

  When the security release mode is set, the abnormality determination unit 1252 determines that no abnormality has occurred in the monitoring target 100 even if a detection signal from the human body detection sensor 1121 or the open / close detection sensor 1122 is received. This is because the security release mode assumes that the monitoring target 100 is manned. The sensor 11 that is determined to be abnormal when the security release mode is set is also designated in advance.

  When the guard set mode is set, when a detection signal is received from any of the sensors 11, the abnormality determination unit 1252 determines that an abnormality has occurred in the monitoring target 100. This is because the security set mode is based on the premise that the monitoring target 100 is unattended.

  When the home security mode is set, the abnormality determination unit 1252 monitors the detection signal from the outer periphery monitoring sensor (for example, the open / close detection sensor 1122) that detects intrusion from outside the monitoring target 100 (outside the dwelling unit). It is determined that an abnormality has occurred in the target 100. On the other hand, even if a detection signal from the human body detection sensor 1121 that monitors the presence or absence of a human body in the monitoring target 100 is received, the abnormality determination unit 1252 determines that no abnormality has occurred in the monitoring target 100.

  As described above, when one of the sensors 11 outputs a detection signal when the security set mode is set, an abnormal signal is transmitted to the center device 21. On the other hand, when the security release mode or the home security mode is set, the abnormal signal is transmitted to the center device 21 only when the sensor 11 designated in advance outputs a detection signal. In this sense, it can be said that the security mode determines which sensor 11 outputs the detection signal to the center device 21 when the detection signal is output.

  Returning to FIG. 2, when it is determined that an abnormality has occurred, the abnormality determination unit 1252 stores the abnormality content in the current state information of the storage unit 126 and sends an abnormality signal from the communication unit 127 to the center device 21 of the monitoring center 200. Send. The abnormal signal may include information indicating the detection date and time, information indicating which sensor 11 outputs the abnormal signal, information indicating the security mode, and the like. In addition, when it is determined that the abnormality has been resolved by the user setting the security release mode or the like, the abnormality determination unit 1252 normalizes the current state information in the storage unit 126 and sends a recovery signal from the communication unit 127 to the center device. To 21.

  In addition, when receiving the emergency signal, the abnormality determination unit 1252 transmits the abnormality signal to the center device 21 regardless of the security mode. The abnormal signal based on the emergency signal may include a user ID in addition to the information included in the abnormal signal based on the detection signal. The emergency signal from the emergency button 1131 or the emergency terminal 1132 may be directly transmitted to the center device 21 as an abnormal signal without passing through the monitoring device 12.

  When the cancel button in the operation unit 123 is pressed within a predetermined time from the output of the detection signal (or emergency signal), the cancel processing unit 1253 outputs that the detection signal (or emergency signal) has been canceled. Are stored in the storage unit 126 as a sensor detection log. In this case, although no abnormal signal is transmitted to the center device 21, the cancel processing unit 1253 sends a cancel information signal indicating the sensor detection log from the communication unit 127 to the center every predetermined cycle (for example, once a day). You may transmit to the apparatus 21. FIG.

  The storage unit 126 includes a ROM, a RAM, an HDD (Hard Disk Drive), and the like. The storage unit 126 stores a property ID for specifying the monitoring target 100, various programs, and various information for operating the monitoring device 12. More specifically, the detection information table, the security mode information indicating the set security mode, the sensor detection log, the verification information indicating the IC card information of the user who can use the monitoring device 12, and each sensor 11 are specified. The storage unit 126 stores a sensor arrangement information table in which a sensor ID, a sensor type, and an installation position are associated with each other, a window or door open / closed state based on a detection signal from the open / close detection sensor 1122, and the like.

  The communication unit 127 constructs a communication network such as a VPN (Virtual Private Network) tunnel between the monitoring device 12 in the monitoring target 100 and the center device 21 in the monitoring center 200, and between the monitoring device 12 and the center device 21. Encrypted communication with. When the communication unit 127 transmits various signals such as the abnormal signal, the security mode signal, and the cancel information signal described above to the center device 21, the communication unit 127 refers to the storage unit 126 and performs transmission after assigning the property ID.

  FIG. 4 is a block diagram illustrating a schematic configuration example of the center device 21 installed in the monitoring center 200. The monitoring center 200 includes one or more computers, and includes a communication unit 211, an operation unit 212, a display unit 213, a control unit 214, a storage unit 215, and the like.

  The communication unit 211 constructs a communication network such as a VPN tunnel between the monitoring device 12 in the monitoring target 100 and the center device 21 in the monitoring center 200, and encrypts communication between the monitoring device 12 and the center device 21. I do. The communication unit 211 receives the above-described various information and various signals from the monitoring device 12 of the monitoring target 100. In addition, the communication unit 211 periodically performs a health check for confirming a communication state with the monitoring device 12 installed in each monitoring target 100.

  The operation unit 212 is a touch panel, a mouse, a keyboard, and the like, and receives an operation from a monitor. The display unit 213 is a liquid crystal display or the like, and displays a necessary screen. When an abnormal signal is received from the monitoring device 12 installed in the monitoring target 100, information on the monitoring target 100 to be dealt with is displayed on the display unit 213 based on the property ID, sensor ID, and the like included in the abnormal signal. Is done. The observer can take necessary measures while viewing this information.

  The control unit 214 includes a microcomputer composed of a processor, a ROM, a RAM, and the like and peripheral circuits thereof, and controls the center device 21 as a whole. Also, the alarm type setting unit 2141 and the analysis unit 2142 are realized by the processor in the control unit 214 executing a predetermined program.

  The alarm type setting unit 2141 sets the type of an actual alarm or a false alarm in the abnormality signal from the monitoring device 12 and stores it in the storage unit 215 as an alarm information table. A real alarm is a case where an actual fire has occurred and the security guard or firefighter has responded, a case where there has been an intruder and the security guard or police have responded, or a case where the user has a sudden illness and the security guard or emergency has responded Etc. A false alarm is a case where an abnormal signal based on a detection signal from the fire detection sensor 1111 is received even though no fire actually occurs, and a human body detection sensor even though no intruder actually exists A case where an abnormal signal based on a detection signal from 1121 is received, or a case where an abnormal signal based on an emergency signal is actually received from the emergency call device 113 even though the user is not suddenly ill. More specifically, for false alarms, when smoke is filled during cooking, or when an unstable health user intentionally generates an abnormal signal by bringing the lighter close to the fire sensor, for example. including.

  The determination and setting as to whether it is a real alarm or a false alarm may be automatically performed by the alarm type setting unit 2141 or may be performed based on an operation from the monitoring person on the operation unit 212. In the latter case, based on the property ID or user ID attached to the abnormality signal, the monitor performs a reverse check on the monitored object 100 by telephone or the like, confirms whether there is an abnormality, and confirms whether there is an abnormality from the operation unit 212. May be entered. If confirmation by telephone is not possible, the counselor visits the monitoring object 100 and confirms the result, reports the result to the monitoring person, and the monitoring person makes an actual / false alarm from the operation unit 2 1 2. Input may be made. Furthermore, the actual alarm / false alarm may be determined in accordance with the presence or absence of a notification operation to the police or fire department by the monitoring staff. Specifically, for a property that has received an abnormal signal, if an alarm or a notification operation to the fire department is recorded, it is determined as an actual alarm, and if a property that has been detected abnormally without a notification operation is recovered, it is determined as a false alarm. You may do it.

  The type of the actual alarm / false alarm set in this way is associated with the abnormal signal, and further stored in the storage unit 215 by the alarm type setting unit 2141 as an alarm information table with reference to the guard mode signal.

  FIG. 5 is a diagram illustrating an example of an alarm information table. As shown in the figure, when (detection date and time), where (property ID), which sensor (sensor ID), in which security mode the detection signal was output, and whether the detection signal was a real alarm or a false alarm Is stored as a table. The alarm information table may further include a user ID.

  Returning to FIG. 4, the analysis unit 2142 analyzes the information from the monitoring device 12 and performs the following determination regarding the change in the health state of the user of the monitoring target 100.

  As a first example, the analysis unit 2142 analyzes an alarm information table, and among abnormal signals, an abnormal signal derived from a detection signal output from a specific sensor 11 (particularly, an abnormal signal set as a false alarm). The occurrence frequency is analyzed, and it is determined that there is a change in the health state of the user when a change tendency such as an abnormal signal from the specific sensor 11 increasing rapidly is seen.

  The specific sensor 11 in this case is preferably a sensor 11 that is difficult to issue a report, more specifically, a fire detection sensor 1111 or the like. An abnormal signal from the sensor 11 that is difficult to report should not be reported so much, but the fact that such an abnormal signal has been reported at a high frequency means that the user's cognitive function is healthy. This is because some abnormality may have occurred in the state.

  For example, when abnormal signals that are false alarms from the fire detection sensor 1111 are rapidly increasing, there is a possibility of smoke generation or heat generation associated with cooking. In such a case, generation of smoke or heat increases rapidly in the monitoring target 100. It can be assumed that there is no correction in spite of being. In this case, the olfactory sensation is low and you do not notice the generation of smoke. Changes such as the detection sensor 1111 being informed are suspected.

  Whether or not the abnormal signals are increasing rapidly can be determined by whether or not a predetermined condition is satisfied. For example, the analysis unit 2142 may compare the rate of increase of the number of abnormal signal occurrences per predetermined period with respect to the reference number and a predetermined threshold value. As a more specific example, the predetermined period can be set to one week, the reference number can be set to the number of abnormal signal occurrences in the previous week, or the average value of the number of abnormal signal occurrences of the same sensor 11 installed in each property. . Further, the present invention is not limited to the example of determining the degree of increase, and the number of occurrences of such a state may be compared with a threshold value to determine whether the frequency is equal to or higher than a certain level.

  FIG. 6 is a diagram schematically showing an example of the number of occurrences of abnormal signals set as false alarms (FIG. 6 (a)) and the rate of increase (FIG. 6 (b)). (The unit is arbitrary). The solid line is an abnormal signal with a specific property ID0, and the broken line is an abnormal signal with another property ID1.

  For example, at time t1, the increase rate of the abnormality signal of the property ID 0 exceeds the threshold value TH0. Therefore, the analysis unit 2142 determines that an abnormality has occurred in the user with the property ID 0.

  The threshold for the increase rate may be set in multiple stages, and the analysis unit 2142 may make a determination according to each stage. For example, two levels of threshold values (a high threshold value TH1 and a low threshold value TH0) are set.

  In the example of FIG. 6, the increase rate of the abnormal signal exceeds the high threshold TH1 at time t2 for the user of the property ID1. In this case, since there is a possibility that a fire will occur recently, the analysis unit 2142 determines that the degree of urgency is high. Then, the analysis unit 2142 (or the monitoring person) notifies the registered contact information (separated family, family doctor, visiting nurse, etc.) to that effect. When the family uses the same security company, the family monitoring device 12 may be notified so as to display an abnormal signal report history and a predicted symptom.

On the other hand, regarding the user of the property ID 0, the increase rate of the abnormal signal at the time t1 is between the low threshold value TH0 and the high threshold value TH1. In this case, the analysis unit 2142 determines that an abnormality has occurred in the user but the degree of urgency is not so high. Then, the analysis unit 2142 (or a supervisor) can notify the nearest sales staff and recommend a planning change such as addition of the fire detection sensor 1111. Also, if there is a routine that visits the user regularly, it is changed to a higher priority in the visit list.

  The analysis unit 2142 may consider conditions of user attribute information (such as age and family structure) registered in advance. For example, the threshold value may be varied according to user attribute information. That is, when an elderly person lives alone on the monitoring target 100 based on a pre-registered family structure, the threshold value may be set lower to make it easier to determine that there is an abnormality. Also, when there is a mental medical history in the past, the threshold value may be set lower similarly. Alternatively, the threshold value may be set higher during the daytime and lower at nighttime. This is because normal life is performed during the day, but abnormal behavior tends to occur at night. In addition, when the abnormal signal is rapidly increasing or when it is rapidly decreasing, the analysis unit 2142 may determine that there is a change in the health state of the user.

  In parallel with the determination described above, the analysis unit 2142 includes an abnormal signal (in particular, an abnormal signal derived from a detection signal output from a sensor 11 (hereinafter, referred to as a normal sensor 11) different from the specific sensor 11). The occurrence frequency of the abnormal signal set as a false alarm) may be analyzed, and it may be determined that there is a change in the health state of the user when the abnormal signal from the normal sensor 11 is rapidly increasing. That is, the analysis unit 2142 may perform a determination different from the determination based on the abnormal signal from the specific sensor 11 based on the abnormal signal from the normal sensor 11.

  The normal sensor 11 in this case is a sensor 11 that is easier to report than the specific sensor 11, that is, a sensor 11 that is likely to be reported even in normal life due to carelessness of the user. An open / close detection sensor 1122 that outputs a detection signal when the window is opened during the security mode setting is suitable.

  Even when abnormal signals that are false alarms from the normal sensor 11 are rapidly increasing, there is a possibility that there is a change in the health condition of the user. However, in comparison with the specific sensor 11, the normal sensor 11 is careless and an abnormal signal is likely to be generated. Therefore, the analysis unit 2142 determines that the degree of urgency is relatively low. Alternatively, the threshold value for determining that there is a change in the user's health condition may be set higher than the determination based on the abnormality signal based on the detection signal of the fire detection sensor 1111.

  Further, when the normal sensor 11 is the above-described opening / closing detection sensor 1122, an abnormal signal is generated according to the detection signal from the opening / closing detection sensor 1122 when the home security mode is set, but when the security release mode is set, the abnormal signal is generated. Does not occur. Therefore, it is considered that the user can set or change the security mode and can make a certain degree of normal judgment. Therefore, when the security mode signal indicates the home security mode, it can be said that it is appropriate to determine that the degree of urgency is low even if an abnormal signal derived from the detection signal from the open / close detection sensor 1122 increases rapidly.

  Further, the analysis unit 2142 may perform the determination in consideration of the cancel information signal. As described above, depending on the type of the sensor 11, even if the user accidentally outputs a detection signal or an emergency signal, if the user presses the cancel button within a predetermined time, the center device 21 may malfunction. No signal is sent. Instead, the analysis unit 2142 can grasp that the sensor is canceled after sensor detection (sensor detection log) by using the cancel information signal.

  When the user canceled properly even if a detection signal or the like was output accidentally before, the abnormal signal was transmitted to the center device 21 without being canceled and the number of false alarms rapidly increased. The analysis unit 2142 may determine that there is a change in the health state of the user. This is because the user is unable to perform the cancel operation or feels annoying the cancellation, and some care may be necessary.

  In the above example, a change in the user's health condition is determined based on the frequency of occurrence of an abnormal signal set as a false alarm in particular as an abnormal signal. However, a distinction is made between a real alarm and a false alarm. Is not essential, and determination may be made based on the frequency of occurrence of abnormal signals including actual alarms.

  This is because the frequency of actual alarms is much lower than that of false alarms, and users who have problems with their health are not intentionally important. This is because there are cases in which abnormalities are generated. Therefore, when making a more accurate determination, it is preferable to distinguish between an actual alarm and a false alarm. However, in consideration of simplification of processing of abnormal signal data, etc., it is possible not to identify a real alarm and a false alarm. Good.

  Further, in the analysis of the occurrence frequency of the abnormal signal, information on the set security mode may be taken into consideration. That is, an abnormal signal generated when the security mode is the security set mode may be excluded from the analysis target. This is because there is a high possibility that it is unrelated to the change in the health condition of the user because it is an actual alarm or a false alarm that occurs when the user is absent.

  As a second example, the analysis unit 2142 analyzes the alarm information table, and among the abnormal signals, an abnormal signal derived from the emergency signal output from the emergency call device 113 (particularly, an abnormal signal set as a false alarm). The occurrence frequency is analyzed, and it is determined that there is a change in the health condition such as the user's cognitive function when the abnormal signal from the emergency call device 113 is rapidly increasing. The emergency signal is not output unless the user intentionally performs a specific operation on the emergency call device 113. That is, there is a low possibility that a signal is output by an erroneous operation against the user's will. As described above, even if an abnormal signal is output by a user's intentional operation, if the result of confirmation is not urgent, it is treated as a false alarm.

  Most of the emergency signals that are such false alarms are likely to be caused by an intentional operation by a user whose normal judgment is reduced. Such an erroneous operation should be less frequent than, for example, opening a window and outputting a detection signal during home security mode setting. Nevertheless, frequent occurrence of emergency signals due to a specific user means that erroneous operations by the user frequently occur in normal life, and there is a high possibility that there is some change in the health state of the user.

  As in the first example, it can be determined whether or not the abnormal signal has increased rapidly in the second example depending on whether or not a predetermined condition is satisfied. For example, the analysis unit 2142 may compare the rate of increase of the number of abnormal signal occurrences per predetermined period with respect to the reference number and a predetermined threshold value. The threshold for the increase rate may be set in multiple stages, and the analysis unit 2142 may make a determination according to each stage. For example, two levels of threshold values (a high threshold value and a low threshold value) are set. Further, the analysis unit 2142 may consider conditions of user attribute information (such as age and family structure) registered in advance. Moreover, you may determine by comparing not only the increase degree but the frequency | count of occurrence.

The analysis unit 2142 may change the threshold based on the security mode signal. For example, when the setting frequency to the security set mode set when going out is more than a predetermined number of times (for example, once a day), the threshold value may be set higher to make it difficult to determine that there is an abnormality. This is because it can be estimated that normal activities are performed as the number of times of going out increases. Moreover, it is because it can be estimated that setting the security mode when going out has normal judgment ability.

  Thus, in this embodiment, since the change of an abnormal signal is analyzed, the change of health conditions, such as a user's cognitive function, can be detected.

  The embodiment described above is described for the purpose of enabling the person having ordinary knowledge in the technical field to which the present invention belongs to implement the present invention. Various modifications of the above embodiment can be naturally made by those skilled in the art, and the technical idea of the present invention can be applied to other embodiments. Therefore, the present invention should not be limited to the described embodiments, but should be the widest scope according to the technical idea defined by the claims.

DESCRIPTION OF SYMBOLS 100 Monitoring object 11 Sensor 111 Disaster prevention sensor 1111 Fire detection sensor 1112 Gas detection sensor 112 Security sensor 1121 Human body detection sensor 1122 Opening / closing detection sensor 1123 Destruction detection sensor 113 Emergency call device 1131 Emergency button 1132 Emergency terminal 12 Monitoring device 121 Timing unit 122 Sensor interface 123 Operation unit 124 Display unit 125 Control unit 1251 Mode setting unit 1252 Abnormality determination unit 1253 Cancel processing unit 126 Storage unit 127 Communication unit 200 Monitoring center 21 Center device 211 Communication unit 212 Operation unit 213 Display unit 214 Control unit 2141 Alarm type setting unit 2142 Analysis unit 215 Storage unit

Claims (8)

A monitoring device that is installed in a monitoring target and transmits an abnormal signal in response to an emergency signal output in response to a user operation;
A monitoring system installed at a monitoring center and receiving the abnormal signal, and a monitoring system comprising:
The said center apparatus is a monitoring system which has an analysis part which analyzes the occurrence frequency of the said abnormal signal and performs the determination regarding the change of the said user's health condition.   The monitoring system according to claim 1, wherein the analysis unit determines that the health state of the user has changed when an increasing tendency of the abnormal signal satisfies a predetermined condition. The center device has an alarm type setting unit for setting whether the abnormal signal is a real alarm or a false alarm,
The monitoring system according to claim 1, wherein the analysis unit analyzes the occurrence frequency of the abnormal signal set as a false alarm among the abnormal signals and performs the determination.   The monitoring system according to any one of claims 1 to 3, wherein the emergency signal is output from an emergency button installed in the monitoring target or an emergency terminal portable by the user.   The monitoring system according to claim 1, wherein the analysis unit performs the determination in consideration of the attribute information of the user.   The monitoring system according to claim 5, wherein the attribute information includes an age and / or family structure of the user. The monitoring device can be set to any one of a plurality of modes including a home security mode for manned time and a security set mode for going out, and a security mode signal indicating the set mode is set in the center device To
The monitoring system according to claim 1, wherein the analysis unit performs the determination in consideration of a setting state of the security mode signal based on the security mode signal. A center device that receives an abnormal signal corresponding to an emergency signal output in response to a user operation from a monitoring device installed in a monitoring target,
The center apparatus which has an analysis part which analyzes the frequency of occurrence of the abnormal signal and makes a determination regarding a change in the health state of the user.