Abnormality detection system

Abstract

To provide an abnormality detection system that allows each of a plurality of detection means to be individually switched between a non-blocked state and a blocked state.SOLUTION: A user can set detection means 112 of some of a plurality of detection devices 11 to a blocked state during inspection, and can set detection means 112 of detection devices 11 not under inspection to a non-blocked state. As a result, the system avoids unintended alarms during inspection and correctly performs an alarm when a detection device 11 not under inspection detects an actual abnormality.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a technique for detecting the occurrence of an abnormality in a detection area. [Background technology]

[0002] Homes, stores, etc. are equipped with anomaly detection systems that detect the occurrence of abnormalities within a room, such as the occurrence of a fire, etc. Generally, in this type of anomaly detection system, if there are multiple defined areas such as rooms within a building, a detection device that detects abnormalities is placed in each area, and a management device that manages the status of the building in an integrated manner based on the detection results of each detection device is provided.

[0003] In such an anomaly detection system, inspections are periodically conducted to confirm whether the detection devices are operating properly. Inspections are conducted by intentionally causing an anomaly within the area where the detection device being inspected is located, and the suitability of the detection device is determined based on whether the anomaly can be detected. If no countermeasures are taken during this process, the detection device being inspected may send an anomaly detection notification to the management device, even though no anomaly has actually occurred. In response to this anomaly detection notification, the management device may sound an alarm, turn on a warning light, or send information to notify people in the security room or elsewhere of the anomaly (hereinafter, this process of notifying the detection of an anomaly will be referred to as "alert").

[0004] In order to avoid the problem of false alarms that may occur during inspection work as described above, a system is known that has a blocking operation function that blocks the transmission of information from the detection device to the management device when inspection work is being performed on the detection device (see Patent Document 1). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 10-149620 Summary of the Invention [Problem to be solved by the invention]

[0006] The system disclosed in Patent Document 1 avoids the problem of false alarms being issued during inspection work. However, in the system disclosed in Patent Document 1, communication between all of the multiple detection devices and the management device is blocked. Therefore, even if a detection device that is not being inspected detects an actual abnormality such as a fire while one of the detection devices is being inspected, the detection device does not send an abnormality detection notification to the management device, resulting in the problem that the management device does not issue the alarm that it should have issued.

[0007] The present invention provides an anomaly detection system that detects anomalies using multiple detection means, and that is capable of issuing an alert regarding an abnormality that has actually occurred while avoiding unintended alerts associated with inspections when some of the detection means are under inspection. [Means for solving the problem]

[0008] The abnormality detection system of the present invention comprises a plurality of detection means that measure physical quantities at different positions and detect abnormalities based on the measured physical quantities, and an alarm issuing means that issues an alarm, which is a process for notifying the outside world that an abnormality has been detected, based on the results of detection by the plurality of detection means, wherein each of the plurality of detection means can selectively take either a blocked state or a non-blocking state, and when some of the plurality of detection means are in a blocked state, the alarm issuing means issues an alarm based on the results of detection by the detection means in the non-blocking state, but does not issue an alarm based on the results of detection by the detection means in the blocked state. [Effects of the Invention]

[0009] According to the present invention, when some of the detection means are undergoing inspection, unintended issuance of an alarm due to the inspection is avoided, and an alarm is issued regarding an abnormality that has actually occurred. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a diagram showing the configuration of an anomaly detection system according to an embodiment. [Figure 2] FIG. 2 is a diagram showing the hardware configuration of a detection device according to an embodiment. [Figure 3] FIG. 2 is a diagram showing the functional configuration of a detection device according to an embodiment. [Figure 4] FIG. 2 is a diagram illustrating a hardware configuration of a management apparatus according to an embodiment. [Figure 5] FIG. 2 is a diagram showing the functional configuration of a management apparatus according to an embodiment. [Figure 6] FIG. 10 is a diagram showing a screen displayed by a management device according to an embodiment. [Figure 7] FIG. 10 is a diagram showing a hardware configuration of a detection device according to a modified example. [Figure 8] FIG. 10 is a diagram showing the functional configuration of a detection device according to a modified example. [Figure 9] FIG. 10 is a diagram showing the functional configuration of a management device according to a modified example. DETAILED DESCRIPTION OF THE INVENTION

[0011] [Embodiment] An anomaly detection system 1 according to one embodiment of the present invention will be described below. The anomaly detection system 1 continuously determines whether an anomaly such as a fire has occurred in a monitored area, and if it determines that an anomaly has occurred, i.e., if it detects an anomaly, it performs processing to notify nearby people and the manager of the monitored area, etc., that an anomaly has been detected, i.e., issues an alert.

[0012] 1 is a diagram showing the configuration of an anomaly detection system 1. The anomaly detection system 1 includes a plurality of detection devices 11, each of which is placed at a different position within a monitored area, and a management device 12 that communicates with each of the detection devices 11.

[0013] The management device 12 is placed, for example, in a management room where a manager resides, and when any of the detection devices 11 detects an abnormality, it notifies the manager or other person in the management room of the abnormality by sound or display, and also communicates with the external device 2 to notify the external device 2 of the abnormality. The external device 2 is a higher-level system such as a central monitoring device or a mobile terminal device carried by the manager, and is a device that notifies relevant people who are not in the management room that an abnormality has been detected, in response to information received from the management device 12.

[0014] The number of detection devices 11 included in the anomaly detection system 1 may be any number equal to or greater than two. In the following description, it is assumed that the number of detection devices 11 included in the anomaly detection system 1 is six, as illustrated in FIG.

[0015] There are no particular limitations on the area to be monitored in which each of the multiple detection devices 11 is disposed. However, in the following description, as an example, the area to be monitored is the space inside a two-story building, with three rooms R11 to R13 on the first floor of the building and three rooms R21 to R23 on the second floor of the building. Furthermore, it is assumed that one detection device 11 is disposed in each of these six rooms.

[0016] Hereinafter, when multiple detection devices 11 are to be distinguished from one another, the reference number of the room in which the detection device 11 is placed will be added in parentheses, such as detection device 11 (R11).

[0017] 2 is a diagram showing the hardware configuration of the detection device 11. The detection device 11 includes a processor 1101 that processes data according to a program, a memory 1102 that stores various data including the program executed by the processor 1101, a sensor 1103 that measures surrounding physical quantities, and a communication IF (Interface) 1104 that communicates data with the management device 12. Note that the detection device 11 may include multiple sensors 1103 of the same type or different types.

[0018] Fig. 3 is a diagram showing the functional configuration of the detection device 11. That is, when the processor 1101 of the detection device 11 processes data in accordance with the program for the detection device 11 according to this embodiment, a device having the configuration shown in Fig. 3 is realized. The mechanical configuration of the detection device 11 will be described below.

[0019] The measuring means 111 measures the surrounding physical quantity and delivers measurement result data indicating the measurement result to the detecting means 112 and the transmitting means 113 .

[0020] The detecting means 112 determines whether or not there is an abnormality based on the measurement result indicated by the measurement result data received from the measuring means 111, i.e., the physical quantity measured by the measuring means 111. Then, the detecting means 112 passes the determination result data indicating the determination result of whether or not there is an abnormality to the transmitting means 113.

[0021] The determination result data that the detecting means 112 passes to the transmitting means 113 is either an abnormality detection notification, which is a notification indicating that an abnormality has been detected, or a normality notification, which is a notification indicating that the system is normal.

[0022] The transmitting means 113 transmits the measurement result data received from the measuring means 111 and the judgment result data received from the detecting means 112 to the management device 12 together with a device ID that identifies the detecting device 11 that has the measuring means 111 and the detecting means 112.

[0023] 4 is a diagram showing the hardware configuration of the management device 12. The management device 12 includes a processor 1201 that processes data according to a program, a memory 1202 that stores various data including the program executed by the processor 1201, a touch screen 1203 that has a touch panel that accepts touch operations by the user and a display that displays various information to the user, a speaker 1204 that outputs sounds to the user, and a communication IF 1205 that performs data communication between each of the detection devices 11 and the external device 2.

[0024] The touch screen 1203 operates under the control of the processor 1201 to form the user interface 122 described below, but instead of the touch screen 1203, the management device 12 may be equipped with another type of device or group of devices that operates under the control of the processor 1201 to form the user interface 122 (for example, a display without a touch panel and physical controls (buttons, knobs, sliders, etc.)).

[0025] Fig. 5 is a diagram showing the functional configuration of the management device 12. That is, when the processor 1201 of the management device 12 processes data in accordance with the program for the management device 12 according to this embodiment, a device having the configuration shown in Fig. 5 is realized. The mechanical configuration of the management device 12 will be described below.

[0026] The receiving means 121 receives measurement result data and judgment result data from each of the detecting devices 11, along with the device ID (IDentifier) ​​of that detecting device 11. The receiving means 121 passes the received device ID of the detecting device 11, measurement result data, and judgment result data to the user interface 122. The receiving means 121 also passes the received device ID of the detecting device 11 and judgment result data to the reporting means 123.

[0027] The user interface 122 includes a receiving unit 1221 for receiving instructions from the user, and an issuing unit 1222 for issuing various types of information to the user by displaying them.

[0028] The instructions received by the receiving means 1221 include an instruction to switch between a non-blocking state and a blocked state for any of the multiple detecting devices 11. The non-blocking state is a state in which the alarm issuing means 123 issues an alarm based on the result of detection by the detecting means 112. The blocked state is a state in which the alarm issuing means 123 does not issue an alarm based on the result of detection by the detecting means 112. Each of the detecting means 112 of the multiple detecting devices 11 can individually, i.e., independently of the detecting means 112 of the other detecting devices 11, selectively take either the non-blocking state or the blocked state.

[0029] When the user interface 122 receives an instruction from the user via the receiving means 1221 to switch the detection means 112 of any of the detection devices 11 from a non-blocking state to a blocking state or from a blocking state to a non-blocking state, the user interface 122 passes a switching notification, which is a notification indicating the received instruction, to the reporting means 123. The switching notification includes the device ID of the detection device 11 to be switched and a status flag indicating the status after switching (for example, "1" indicating a blocked state or "0" indicating a non-blocking state).

[0030] The alert issuing means 123 stores a status flag indicating the current status (non-interrupted status or interrupted status) of the detecting device 11 (detecting means 112) identified by the device ID, in association with the device ID, based on the switching notification received from the user interface 122. Then, when the alert issuing means 123 receives determination result data from the receiving means 121, the alert issuing means 123 issues an alert only if the received determination result data is an abnormality detection notification and the status flag stored in association with the device ID received together with the abnormality detection notification is in the non-interrupted status. In other words, when some of the multiple detecting means 112 are in the interrupted status, the alert issuing means 123 issues an alert based on the detection result by the detecting means 112 in the non-interrupted status, but does not issue an alert based on the detection result by the detecting means 112 in the interrupted status.

[0031] The alert issued by the alert issuing means 123 may be, for example, sounding an alarm (or audio of an alarm message) from the speaker 1204, displaying an alarm message on the touch screen 1203, and transmitting an abnormality detection notification to the external device 2 via the communication IF 1205. However, the content of the alert issued by the alert issuing means 123 may be changed in various ways as long as it is a process for notifying the outside that an abnormality has been detected.

[0032] 6 is a diagram showing a screen (hereinafter referred to as a "monitor screen") displayed by output means 1222 of user interface 122. Note that output means 1222 of user interface 122 is realized by the display of touch screen 1203 that operates under the control of processor 1201, and therefore the monitor screen is displayed on the display of touch screen 1203. Also, reception means 1221 of user interface 122 is realized by the touch panel of touch screen 1203 that operates under the control of processor 1201, and virtual operators (buttons displayed in area A3) included in the monitor screen play the role of operators that receive touch operations by the user.

[0033] The monitor screen is divided into six sections corresponding to the plurality of detecting devices 11. In each of these sections, the following objects are arranged in areas A1 to A6.

[0034] Area A1: A text box that displays the room name (e.g., "R11") Area A2: A text box that displays text indicating the current state of the detection means 112 ("non-blocked state" or "blocked state"). Area A3: Virtual button for receiving an instruction to switch the state of the detection means 112 ("Switch to disconnected state" or "Switch to non-disconnected state") Area A4: Image of an indicator that represents the physical quantity indicated by the measurement result data Area A5: Image of a virtual lamp indicating whether or not an abnormality has been detected as indicated by the judgment result data (a red lamp indicating that an abnormality has been detected, or a green lamp indicating that the condition is normal) Area A6: A text box that displays text indicating whether or not an abnormality has been detected in the judgment result data ("No abnormality" or "Anomaly detected!").

[0035] By looking at the text in area A2 of each section on the monitor screen, the user can intuitively know in which room the detection means 112 of the detection device 11 located is currently in an unblocked state or a blocked state.

[0036] In addition, by performing a touch operation on a button displayed in area A3 of any section of the monitor screen, the user can easily switch the state of the detection means 112 of the detection device 11 located in the room corresponding to the section in which the button is located.

[0037] Furthermore, by looking at the indicator displayed in area A4 of any of the sections on the monitor screen, the user can know in real time the change in the magnitude of the physical quantity being measured by the measuring means 111 of the detection device 11 located in the room corresponding to the section in which the indicator is located.

[0038] Furthermore, by looking at the lamp displayed in one of the areas A5 on the monitor screen and the text in area A6, the user can intuitively know whether the detection means 112 of the detection device 11 located in the room corresponding to the section in which the objects are located is currently detecting an abnormality.

[0039] The following describes the user's work and the behavior of the anomaly detection system 1 when the user inspects each of the multiple detection devices 11 in sequence.

[0040] In the following explanation, as an example, it is assumed that the user inspects the detection devices 11 in the following order: detection device 11 (R11) → detection device 11 (R12) → detection device 11 (R13) → detection device 11 (R21) → detection device 11 (R22) → detection device 11 (R23).

[0041] Before inspecting the detection device 11 (R11), the user checks the text displayed in area A2 of the section corresponding to room R11 on the monitor screen (Figure 6) displayed on the management device 12 to confirm that the detection means 112 of the detection device 11 (R11) is currently in an unblocked state.

[0042] Next, the user touches the button displayed in area A3 of the section corresponding to room R11 on the monitor screen. In response to this touch, the detection means 112 of the detection device 11 (R11) enters the blocked state. Then, the text "Blocked state" is displayed in area A2 of the section corresponding to room R11 on the monitor screen, and the label "Switch to non-blocked state" is displayed on the button in area A3 of that section.

[0043] Next, the user moves to room R11 and starts work to inspect the detection device 11 (R11). For example, if the detection device 11 detects a fire by detecting smoke generated in association with a fire, the user starts generating smoke in room R11 as an inspection work, for example, using a smoke generating device that generates smoke similar to the smoke generated in association with a fire.

[0044] If the detecting device 11 (R11) is operating normally, the detecting device 11 (R11) will continuously send an abnormality detection notification to the management device 12 in response to the start of inspection work on the detecting device 11 (R11) by the user. The alarm issuing means 123 of the management device 12 will not perform alarm issuing processing even if it receives an abnormality detection notification regarding the detecting device 11 (R11) in the cut-off state. In other words, even if the management device 12 receives an abnormality detection notification from the detecting device 11 (R11) in the cut-off state, it will not emit an alarm sound (or voice of an alarm message) from the speaker 1204, display an alarm message on the touch screen 1203, or send an abnormality detection notification to the external device 2 via the communication IF 1205.

[0045] When the management device 12 receives an abnormality detection notification from the detection device 11 (R11) in the cut-off state, it does not perform the alarm processing as described above, but instead notifies the user that a real abnormality was not detected and that the detection device 11 (R11) operated normally in response to the inspection work. Specifically, as an operation to notify the user of normal operation during inspection, the management device 12 turns on the lamp in area A5 of the section corresponding to room R11 on the monitor screen in red and displays the text "Abnormality detected!" in area A6, just as when a real abnormality is detected, but by displaying "cut-off state" in area A2, it notifies the user that a real abnormality was not detected in room R11 and that the detection device 11 (R11) operated normally in response to the inspection work.

[0046] Depending on the inspection work, the indicator in the area A4 of the section corresponding to the room R11 on the monitor screen will indicate the physical quantity at the time of smoke generation.

[0047] The user moves from room R11 to the location where the management device 12 is installed, and determines whether the detection device 11 is operating normally based on the color of the lamp in area A5 of the section of the monitor screen corresponding to room R11 (the section where the text "Shutdown state" is displayed in area A2), the text in area A6, and the physical quantity indicated by the indicator in area A4.

[0048] Next, the user moves to room R11 again and completes the inspection work for the detection device 11 (R11). For example, if the inspection work is generating smoke using a smoke generating device, the user stops generating smoke in room R11.

[0049] Next, the user moves back to the location where the management device 12 is installed, and after confirming that the physical quantity indicated by the indicator in area A4 corresponding to room R11 on the monitor screen is showing a normal value, that the lamp in area A5 of that section is green, and that the text in area A6 reads "No abnormalities," the user performs a touch operation on the button in area A3 of that section. In response to this operation, the detection means 112 of the detection device 11 (R11) enters the non-blocking state. Then, the text "non-blocking state" is displayed in area A2 of the section corresponding to room R11 on the monitor screen, and the label "switch to blocking state" is displayed on the button in area A3 of that section.

[0050] The user performs the same operations as those described above for the detecting device 11 (R11) for the detecting device 11 (R12) and subsequent detecting devices 11. As a result, the user can know whether each of the detecting device 11 (R11) to the management device 12 (R23) is operating normally.

[0051] According to the above-described anomaly detection system 1, a user can individually switch between the non-shutoff state and the shutoff state each of the detection means 112 of the multiple detection devices 11. Therefore, while a user is inspecting some of the multiple detection devices 11, the user can set the detection means 112 of the detection devices 11 under inspection to the shutoff state and the detection means 112 of the detection devices 11 not under inspection to the non-shutoff state, thereby avoiding unintended alarms due to inspection, and also correctly issuing an alarm regarding the anomaly if a detection device 11 not under inspection detects an actual anomaly.

[0052] Furthermore, according to the above-described abnormality detection system 1, when the detection means 112 of the detection device 11 that was switched to a blocked state for inspection is returned to a non-blocking state after the inspection is completed, the user can easily confirm from the information displayed in areas A4 to A6 on the monitor screen that the effects of the inspection work have been fully resolved and that the detection device 11 that performed the inspection has not output an abnormality detection notification associated with the inspection.

[0053] For example, if smoke for inspection is generated, after the inspection is completed, the remaining smoke for inspection may cause the detection device 11 that has completed the inspection to continue outputting an abnormality detection notification for a while. In such a state, if the user switches the detection means 112 of the detection device 11 that has completed the inspection from the shut-off state to the non-shut-off state, the alarm issuing means 123 will unintentionally issue an alarm. According to the abnormality detection system 1 described above, the user can easily check on the monitor screen whether the detection device 11 that has completed the inspection is outputting an abnormality detection notification, thereby avoiding such unintentional alarm issuing.

[0054] [Variations] The above-described embodiment is one embodiment of the present invention, and various modifications can be made within the scope of the technical concept of the present invention. These modifications are shown below. Note that two or more of the modifications shown below may be combined as appropriate.

[0055] (1) In the above-described embodiment, the alarm issuing means 123 receives an abnormality detection notification output from the cutoff state detection means 112, but does not perform processing in response to the abnormality detection notification, thereby avoiding unintended alarm issuing. Alternatively, the alarm issuing means 123 may avoid unintended alarm issuing by not receiving an abnormality detection notification output from the cutoff state detection means 112.

[0056] (2) In the above-described embodiment, when the detection means 112 in the cutoff state detects an abnormality, the abnormality detection notification output from the detection means 112 is received by the alarm issuing means 123. That is, in the above-described embodiment, even when the detection means 112 is in the cutoff state, when the detection means 112 detects an abnormality, it outputs the abnormality detection notification to the alarm issuing means 123.

[0057] Alternatively, each of the plurality of detection means 112 may be configured to, when it detects an abnormality, output an abnormality detection notification to the alarm issuing means 123 if the detection means itself is in a non-blocking state, but not output an abnormality detection notification to the alarm issuing means 123 if the detection means itself is in a blocked state.

[0058] FIG. 7 is a diagram showing the hardware configuration of the detection device 11 according to this modified example, FIG. 8 is a diagram showing the functional configuration of the detection device 11 according to this modified example, and FIG. 9 is a diagram showing the functional configuration of the management device 12 according to this modified example.

[0059] In this modification, the management device 12 (FIG. 9) includes a transmission means 124 in addition to the functional configuration units (FIG. 5) included in the management device 12 in the above-described embodiment. When a user operates the user interface 122 to instruct switching of any of the detection devices 11 from a non-blocked state to a blocked state or from a blocked state to a non-blocked state, the transmission means 124 transmits a switching notification to the detection device 11 in response to the user's operation.

[0060] In this modification, the hardware of the detection device 11 (FIG. 7) includes the components of the detection device 11 in the above embodiment (FIG. 2) as well as a lamp 1105. The lamp 1105 is, for example, an LED (Light Emitting Diode) lamp, and emits light under the control of the processor 1101.

[0061] In this modification, the detecting device 11 (FIG. 8) includes receiving means 114 and notifying means 115 in addition to the functional configuration units (FIG. 3) included in the detecting device 11 in the above-described embodiment. The receiving means 114 receives the switching notification transmitted from the management device 12 in response to the user's operation as described above, and passes the received switching notification to the detecting means 112. The notifying means 115 notifies the user that an abnormality has been detected by flashing the lamp 1105 in a predetermined pattern in accordance with an instruction from the detecting means 112.

[0062] In this modification, the detection means 112 switches the current state between the non-blocking state and the blocking state in accordance with the received switching notification. If the current state is the non-blocking state, the detection means 112 detects an abnormality and then passes the abnormality detection notification to the transmission means 113, as in the above embodiment. As a result, the transmission means 113 transmits the abnormality detection notification to the management device 12, and the management device 12 issues an alert.

[0063] On the other hand, if the current state is the interruption state and the detection means 112 detects an abnormality, it does not pass the abnormality detection notification to the transmission means 113, but instead instructs the notification means 115 to notify that an abnormality has been detected. In accordance with the instruction from the detection means 112, the notification means 115 notifies the user that an abnormality has been detected, for example by flashing according to a predetermined pattern. In this case, the detection device 11 does not transmit the abnormality detection notification to the management device 12, and therefore the management device 12 does not issue an alert.

[0064] When performing inspection work, the user operates the user interface 122 of the management device 12 to change the state of the detection device 11 to be inspected from the non-shutoff state to the shutoff state, then moves to the room where the detection device 11 to be inspected is located, and after emitting, for example, similar smoke, determines whether the lamp 1105 of the detection device 11 to be inspected starts flashing in a predetermined pattern indicating the detection of an abnormality, and determines whether the detection device 11 is operating normally.

[0065] (3) In the above-described embodiment, the user interface 122 accepts instructions through a touch operation by the user. The method by which the user interface 122 accepts user instructions is not limited to this. For example, the management device 12 may be equipped with a microphone, and the user interface 122 may pick up the user's voice using the microphone, recognize the picked-up voice, and accept the user's instructions.

[0066] In the above-described embodiment, the user interface 122 issues information to the user by displaying it. However, the method by which the user interface 122 issues information to the user is not limited to this. For example, the information issued by the user interface 122 may be read aloud by a synthesized voice, and the voice may be output by the speaker 1204.

[0067] (4) In the above-described embodiment, the physical quantity measured by the measuring means 111 itself is displayed in the area A4 of the monitor screen, but any information may be displayed in the area A4 as long as it is information related to the physical quantity measured by the measuring means 111. For example, the average value (moving average value) of the physical quantity measured by the measuring means 111 during a predetermined period in the most recent past may be displayed in the area A4.

[0068] Furthermore, in the above-described embodiment, the results of abnormality detection by the detection means 112 are displayed in area A5 or area A6 of the monitor screen, but any information may be displayed in area A5 or area A6 as long as it displays information related to the results of abnormality detection by the detection means 112. For example, when no abnormality has been detected by the detection means 112, the elapsed time since the last abnormality was detected may be displayed in area A6.

[0069] (5) In the above-described embodiment, in order to avoid unintended alarms caused by the detection device 11 switching from the blocked state to the non-blocked state too quickly after inspection, the measurement results and detection results are displayed for each individual detection device 11.

[0070] The method for avoiding the above-mentioned unintended issuance of an alarm is not limited to the display of the measurement result or the detection result. For example, when the user interface 122 receives a user instruction to switch the detection means 112 from the blocked state to the non-blocking state, if the detection means 112 detects an abnormality, the user interface 122 may be configured to issue a notification, such as a pop-up display, to prompt the user to confirm whether or not to switch the detection means 112 to the non-blocking state.

[0071] In this case, when the user interface 122 receives a user instruction to switch the detection means 112 from the blocked state to the non-blocked state, it puts on hold the switching according to the instruction and displays a pop-up message such as, "The detection device you are about to switch to is detecting an abnormality. Switching to the non-blocked state will immediately start issuing an alarm. Are you sure you want to switch to the non-blocked state? (``Switch'' / ``Don't switch'')." Then, the pending switching is executed only when a touch operation to select ``Switch'' is performed in response to the pop-up message.

[0072] In addition, the instruction received by the user interface 122 from the user to switch the detection means 112 to a non-blocking state when the detection means 112 in a blocked state has not detected an abnormality may be different from the instruction received by the user interface 122 from the user to switch the detection means 112 to a non-blocking state when the detection means 112 in a blocked state has detected an abnormality.

[0073] For example, to switch a detection means 112 that is in a blocked state and has not detected an abnormality to a non-blocking state, the user may simply single-tap the button in area A3 of the section on the monitor screen that corresponds to that detection means 112, whereas to switch a detection means 112 that is in a blocked state and has detected an abnormality to a non-blocking state, the user may have to double-tap or hold down the button in area A3 of the section on the monitor screen that corresponds to that detection means 112.

[0074] (6) In the above-described embodiment, when the detection means 112 is switched from the cutoff state to the non-cutoff state, the process for detecting an abnormality by the detection means 112 may be reset.

[0075] For example, in a case where the detection means 112 determines that a fire has occurred when the concentration of smoke measured by the measurement means 111 exceeds a predetermined threshold and continues for a predetermined time or longer, and then determines that a normal state (no fire) has been restored when the concentration of smoke measured by the measurement means 111 falls below the predetermined threshold and continues for a predetermined time or longer, the detection means 112 continues to output the abnormality detection notification for a while even after the inspection smoke is no longer measured by the measurement means 111. Therefore, if the user instructs to switch from the shut-off state to the non-shut-off state after checking, for example, by looking at the indicator in area A4 that the inspection smoke has sufficiently disappeared, resetting the process for detecting an abnormality by the detection means 112 that is the target of the switch instruction allows the detection means 112 to quickly return to the normal operating state.

[0076] (7) In the above-described embodiment, when the cutoff state detection means 112 detects an abnormality, even if a user's instruction to switch to the non-cutoff state is received, the cutoff state detection means 112 may be configured not to switch to the non-cutoff state in accordance with the instruction. In this case, the cutoff state detection means 112 may be switched to the non-cutoff state after the cutoff state detection means 112 no longer detects an abnormality in accordance with the switching instruction given by the user when the abnormality is detected.

[0077] (8) In the above-described embodiment, the method for inspecting the detection device 11 is to change the physical quantity to be detected (e.g., the amount of smoke) in the space in which the detection device 11 is placed, have the measurement means 111 of the detection device 11 correctly measure the physical quantity, and inspect whether the detection means 112 can correctly detect an abnormality based on the measurement result. The method for inspecting the detection device 11 is not limited to this.

[0078] For example, an inspection may be performed in which the measurement means 111 outputs measurement result data indicating an abnormality that has been stored in advance to the detection means 112, thereby determining whether the detection means 112, transmission means 113, etc. are operating normally.

[0079] (9) In the above-described embodiment, the instruction to switch the detection means 112 between the non-blocking state and the blocking state is received by the user interface 122 of the management device 12, but the instruction to switch may be received by something other than the user interface 122.

[0080] For example, if the detection device 11 has an operator such as a button that accepts user operation, the detection device 11 may accept an instruction to switch the detection means 112 of the detection device 11 between the non-blocking state and the blocking state using the operator. In this case, the detection device 11 transmits, for example, a status flag indicating the current state in accordance with the switching instruction accepted by the detection device 11 to the management device 12, and when the management device 12 receives an abnormality detection notification, the management device 12 determines, based on the status flag received from the detection device 11, whether to issue an alert in response to the abnormality detection notification.

[0081] (10) In the above-described embodiment, the measuring means 111 and the detecting means 112 that detects abnormalities based on the measurement results of the measuring means 111 are provided in the same device (detecting device 11), but the detecting means 112 corresponding to the measuring means 111 may be provided in a device different from the measuring means 111.

[0082] For example, the detection means 112 may be arranged in the management device 12. In this case, the anomaly detection system 1 includes a plurality of measuring devices that do not include the detection means 112, instead of the plurality of detecting devices 11, and each of these measuring devices transmits measurement result data together with a device ID to the management device 12. Then, the detection means 112 included in the management device 12 and corresponding to each of the plurality of measuring devices detects an anomaly based on the physical quantity indicated by the measurement result data received from the corresponding measuring device.

[0083] (11) The physical quantity measured by the sensor 1103 of the detection device 11 may be changed in various ways depending on the type of abnormality detected by the detection device 11 and the method of detection. For example, when the detection device 11 detects a fire, a sensor 1103 may be employed that measures the amount of smoke, heat, light in a predetermined wavelength band, or gas generated by the fire. Furthermore, when the detection device 11 detects the intrusion of a suspicious person, a sensor 1103 may be employed that measures a magnetic force that changes with the opening and closing of a door, the amount of measurement light blocked by a moving object, or the like.

[0084] (12) In the above-described embodiment, the anomaly detection system 1 includes a plurality of detection devices 11. However, the anomaly detection system 1 may include only one detection device 11. [Explanation of symbols]

[0085] 1...abnormality detection system, 2...external device, 11...detection device, 12...management device, 111...measuring means, 112...detection means, 113...transmitting means, 114...receiving means, 115...notification means, 121...receiving means, 122...user interface, 123...alarm means, 124...transmitting means, 1101...processor, 1102...memory, 1103...sensor, 1104...communication IF, 1201...processor, 1202...memory, 1203...touch screen, 1204...speaker, 1205...communication IF, 1221...receiving means, 1222...emitting means.

Claims

1. a plurality of detecting means for measuring physical quantities at different positions and detecting an abnormality based on the measured physical quantities; an alarm issuing means for issuing an alarm, which is a process for notifying an external party that an abnormality has been detected, based on the results of detection by the plurality of detection means; Equipped with each of the plurality of detection means can selectively take either a blocking state or a non-blocking state; When some of the plurality of detecting means are in a blocked state, the alarm issuing means issues an alarm based on the result of detection by the detecting means in a non-blocking state, but does not issue an alarm based on the result of detection by the detecting means in a blocked state. Anomaly detection systems.

2. When each of the plurality of detection means detects an abnormality, it outputs an abnormality detection notification to the alarm issuing means, the abnormality detection notification being a notification indicating that the abnormality has been detected; The alarm issuing means does not accept an abnormality detection notification output from the detection means in a cut-off state, or accepts an abnormality detection notification output from the detection means in a cut-off state but does not perform processing in response to the abnormality detection notification. The anomaly detection system of claim 1 .

3. When each of the plurality of detection means detects an abnormality, if the detection means itself is in a non-interrupted state, it outputs an abnormality detection notification, which is a notification indicating that an abnormality has been detected, to the alarm issuing means, and if the detection means itself is in a interrupted state, it does not output the abnormality detection notification to the alarm issuing means. The anomaly detection system of claim 1 .

4. a receiving unit configured to receive a user instruction to switch between a non-interrupted state and an interrupted state for each of the plurality of detecting units; an output means for outputting to a user, for each of the plurality of detection means, at least one of information relating to a physical quantity measured by the detection means and information relating to a result of abnormality detection by the detection means; The anomaly detection system of claim 1 , comprising:

5. When a detection means among the plurality of detection means that has received an instruction to switch the blocked state to a non-blocking state by the reception means detects an abnormality, the issuance means issues a notification to prompt the user to confirm whether or not it is OK to switch the detection means to the non-blocking state. The anomaly detection system of claim 4 .

6. An instruction received by the receiving means from a user to switch the detecting means to a non-blocking state when the detecting means in the blocked state has not detected an abnormality is different from an instruction received by the receiving means from a user to switch the detecting means to a non-blocking state when the detecting means in the blocked state has detected an abnormality. The anomaly detection system of claim 4 .

Images