JP2005190433A - Security system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a security system, capable of carrying out sure monitoring by eliminating blank times of monitoring, at setting of the termination of security mode. <P>SOLUTION: A tentative alarm signal is transmitted from a security device 10, based on a detection signal 1 from a detector 20x (2). A center system 30 starts timekeeping of a first predetermined time, based on the tentative alarm signal (3). When the security mode is terminated, a termination signal is transmitted to the center system (4) and (5), and the center system 30 resets the first predetermined time, to set a non-security mode when receiving the termination signal within the first predetermined time (6). When the center system 30 does not receive the termination signal within the first predetermined time, the center system issues an alarm signal (8), by deciding it as being an abnormal state by elapse of the first predetermined time (7). Thereby, when the first predetermined time elapses, after the transmission of the tentative alarm signal, the abnormal state is surely decided, whereby the abnormal state can be detected, even if the security system is destroyed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a security system that monitors buildings, factories, and other facilities (security target areas) from a remote location, and issues an alarm to prompt countermeasures when an abnormal state such as an intrusion abnormality is detected.

In a security target area such as a building, security is required in a situation where no one is present at night or the like, and normally a non-security mode is set when a person is engaged in work. Therefore, the last person sets the security mode, and the first person cancels the security mode and makes the non-security mode. In the conventional security system, in order to eliminate false alarms while ensuring safety during mode setting operations such as security mode setting release, a mode setting unit is provided in the security target area and is necessary for the security mode release operation A method has been proposed in which an abnormality detection signal from a specific detector (final detector) provided in the vicinity of the entrance / exit is ignored for a predetermined time, or transmission of an alarm signal to the monitoring center is suspended for a predetermined time. (See Patent Document 1). In other words, the predetermined time required for the mode change operation is to suspend sending the detection signal from the final detector to the monitoring center (center system), thereby securing the operation time for mode setting change and preventing false alarms. It is out.
JP 2002-329275 A

  In such a conventional security system, even if the final detector detects an abnormal state during the security mode, the controller (security device) in the security target area suspends sending a warning signal to the center system for a predetermined time. . Therefore, for example, when an intruder enters from a monitoring area where the final detector is located, an abnormality report to the center system is delayed by the time for which transmission is suspended. Furthermore, if the controller or the like having a communication function is invaded from the monitoring area with the final detector and the communication function is destroyed, the notification of the final detector that has been suspended cannot be transmitted to the center system. In the center system, there may be a situation where an abnormality cannot be detected quickly.

  As a countermeasure against such a situation, a regular alarm function for confirming a normal state by exchanging information between the center system and the controller at predetermined time intervals has been proposed. However, depending on the timing of the regular notification interval, it may take a considerable amount of time to find an abnormality, and a sufficient monitoring function may not be achieved. Recent crimes are becoming more sophisticated and faster, and there is a need for early resolution of these problems.

The present invention is for solving the above-described problems, and provides a security system capable of preventing a delay in transmission of an alarm signal to a center system when entering from a monitoring area having a final detector. With the goal.
Furthermore, it is an object of the present invention to provide a security system capable of determining by the center system that the communication function has been destroyed when entering from a monitoring area with a final detector.

  In the present invention, when an intrusion is detected by the security device during the security mode, a temporary warning signal (pre-alarm signal) is transmitted to the center system, and the center system receives a temporary warning signal and the first predetermined time elapses. If the release signal is not received before, the above problem is solved by determining that an abnormality has occurred.

The security system according to the first aspect of the present invention includes at least one detector provided in a security target area, a security device that receives a detection signal from the detector, and a security device connected by a communication line. A security system having a center system for monitoring a security target area based on data from a security device,
The security device includes (1) a mode setting unit for setting the monitoring state of the security target area to the non-security mode or the security mode, and (2) when the detection signal is received from the detector during the security mode. An alarm reporting unit that transmits an alarm signal, and (3) when a setting signal for canceling the security mode and switching to the non-security mode is received from the mode setting unit, a cancellation signal indicating that the security mode has been canceled A mode information transmission unit for transmitting to
The center system includes (4) a mode management unit that determines that an abnormality occurs when a release signal is not received within a first predetermined time after receiving a temporary alarm signal.

  In this aspect, when the detector detects an intrusion, a certain warning signal is always transmitted to the center system, and the first predetermined time period is not transmitted unless a signal indicating that there is no abnormality in the security target area is transmitted from the security device. After the elapse of time, it is determined as an abnormal state. Therefore, even if the communication function between the center system and the security device is broken by entering from the entrance / exit where the mode is changed, the temporary alarm signal is sent to the center system when the detector detects the entry. Thus, it is possible to reliably detect an abnormal situation in the center system.

  The security system according to another aspect of the present invention transmits a temporary alarm signal only when the alarm notification unit receives a detection signal from a predetermined specific detector, and detects a detection signal from another detector. Is received, an alarm signal is transmitted. According to this aspect, it is possible to minimize the number of detectors that measure the first predetermined time, and immediately recognize an abnormal situation when a detector other than the specific detector detects an abnormality.

  The security system according to another aspect of the present invention is characterized by further comprising means for changing the first predetermined time. The means for changing the first predetermined time can be provided in the security device or in the center system. For example, a configuration may be adopted in which a person having a predetermined change authority changes the first predetermined time by operating an operating device provided in the security target area.

  In the security system according to another aspect of the present invention, the security device further includes a timing unit that transmits a temporary alarm signal and starts counting a second predetermined time, and the alarm notification unit includes a second predetermined time When the setting signal for switching from the security mode to the non-security mode is not received from the mode setting unit within the time, an alarm signal is transmitted to the center system. In this aspect, the temporary alarm signal is transmitted, the second predetermined time is counted by the security device, and the alarm signal is transmitted when the security mode is not released even after the second predetermined time has elapsed.

  The second predetermined time is preferably shorter than the first predetermined time. If the warning signal is not transmitted from the security device to the center system even after the first predetermined time has elapsed by making the second predetermined time shorter than the first predetermined time, the center system Since it can be determined that there is a high possibility of being destroyed, it is possible to grasp that a more criminal situation is occurring.

  In the security system according to another aspect of the present invention, the security device further includes a time setting unit that changes the second predetermined time, and a second time after the change when the second predetermined time is changed. A set time sending unit for transmitting information of a predetermined time to the center system, and when the center system receives the information of the second predetermined time, the first predetermined time according to the length of the second predetermined time A time adjustment unit for adjusting the length of time is provided. The length of the first predetermined time is changed by changing the length of the second predetermined time when the layout of the security target area is changed or the arrangement of the mode setting unit or the final detector is changed. Adjustments such as lengthening or shortening may be required. In this aspect, in such a case, the length of the first predetermined time is adjusted according to the length of the second predetermined time.

  The security system according to another aspect of the present invention includes a time management unit capable of setting a prohibited time zone in which the center system prohibits the change setting from the security mode to the non-guard mode, and the mode management unit includes the prohibited time zone. Is characterized in that when a temporary alarm signal is received, it is immediately determined that an intrusion abnormality has occurred. In this mode, for example, by operating with the first predetermined time as “0”, or by not measuring the time itself, a time zone in which a crime such as midnight is likely to occur is specified and immediately intruded. It can be configured to determine that there is an abnormality.

  As described above, according to the present invention, when an intrusion in the security mode is detected by the security device, a temporary warning signal (pre-alarm signal) is transmitted to the center system, and the center system receives the temporary warning signal first after receiving the temporary warning signal. If the release signal is not received before the predetermined time elapses, it is determined that an intrusion abnormality has occurred, thereby creating a monitoring blank time even when entering from the monitoring area where the final detector is located. Therefore, it is possible to monitor abnormality in the center system.

  In addition, when a temporary warning signal is transmitted from the security device, the security device times a second predetermined time shorter than the first predetermined time, and the predetermined release operation is not performed within the second predetermined time. The center system is configured to transmit an intrusion alarm signal to the center system. When the center system receives neither the release signal nor the intrusion alarm signal after receiving the temporary alarm signal, the security device or communication device in the security target area is received. It is possible to determine that has been destroyed. In such a case, it is possible to take an advanced invasion countermeasure with a higher degree of urgency.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing a configuration of a security system according to an embodiment of the present invention. In the security system, the security device 10 provided in a security target facility or security target area 50 such as a house, a condominium, or a building is connected to the monitoring center 60 via a communication line 55 such as a telephone line. It is connected to the system 30. The center system 30 is a monitoring computer system that monitors a plurality of security target areas 50, 50-2, and 50-3, and issues an alarm and manages security behavior when an abnormal state occurs.

  In each security target area 50 (including 50-2 and 50-3, the same applies hereinafter), an intrusion sensor that detects the opening or closing of a window or door, an internal sensor that detects the presence of a person in the monitoring area, a gas leak or a fire Various detectors 20a to 20x (hereinafter collectively referred to as “detector 20” when there is no need to identify individual detectors) including disaster prevention sensors and the like that detect the occurrence of the above are provided. The detector 20 outputs each detection signal to the security device 10. For these detectors, for example, various conventional sensors such as micro switches, magnet sensors, optical sensors such as passive or active infrared sensors, thermal detectors, smoke detectors, gas detectors, etc. They can be used as appropriate. Further, since these detectors are not the gist of the present invention, various sensors that are put into practical use after the filing of the present invention can be appropriately used according to the security target. Note that the detection signal of the disaster prevention sensor can be configured to always notify the center system 30 regardless of the security mode described below.

  The operation device 21 connected to the security device 10 in the security target area is an input device for setting the security target area to the security mode or the non-security mode or setting a predetermined monitoring condition. For setting and changing the mode, a magnetic card or the like is used to confirm that the user has the change authority, and the input of a predetermined password is required. These verification methods can also use more advanced verification techniques as appropriate.

  1 shows an example in which the detector 20 and the operation device 21 and the security device 10 are connected by wire, but it is also possible to make a wireless connection using a conventional technique if necessary. is there.

  The security device 10 communicates with the center system 30 and transmits information indicating the status of the security target area 50 to the center system 30 under a predetermined condition. The center system 30 monitors the security target area 50 based on the information received from the security apparatus 10 and the communication status indicating whether communication with the security apparatus 10 is possible. Whether the security target area 50 is in a normal state or abnormal It is determined whether it is in a state.

  Next, the security device 10 will be described with reference to FIG. FIG. 2 is a functional block diagram showing the concept of the security device 10. Detection signals output from the detectors 20 a to 20 x are input to the control unit 12 via the detector interface (I / F) 11. When the control unit 12 receives the detection signals from the detectors 20a to 20x, the control unit 12 is necessary for the center system 30 via the communication unit 17 in accordance with predetermined processing procedures corresponding to various situations such as security mode and mode switching. Each unit is controlled to transmit information. For example, in the security mode, when a detection signal is received from each detector, an alarm signal such as an intrusion alarm is reported to the center system in principle.

  However, when changing the setting from the non-security mode to the security mode and leaving the security target area, when changing the mode from the security mode to the non-security mode in order to enter the security target area, the controller 21 Even if the detector x provided nearby detects a person who leaves or enters the building, it is not an abnormal state. Therefore, a special process is required for the detection signal of the detector that accompanies the detection of a person entering or leaving when changing the security mode setting.

  In the present invention, the mode setting unit 16, the mode information sending unit 15, and the alarm notification unit 14 are provided to distinguish between an intruder for changing the mode setting and an intruder from the vicinity of the operation device 21, and to quickly It was made possible to judge with certainty.

  When the security mode is canceled from the security mode and set to the non-security mode, the mode change operation is performed by the operating device 21 provided in the security target area 50. When entering the guard target area 50 for the mode change operation and approaching the operating device 21 during the guard mode, the intruder is detected by the detector 20x. When the detector 20x detects an intruder, the detection signal is transmitted to the control unit 12 via the detector I / F 11 in the security device 10. The control unit 12 determines whether the received detection signal is a detection signal from a specific detector related to the mode setting change or a detection signal from another detector.

  In the case of a detection signal from a specific detector, the control unit 12 transmits a temporary alarm signal to the center system 30 by controlling the alarm notification unit 14. In the center system 30, when the temporary alarm signal is received, the time measurement for a predetermined time (first predetermined time) is started from the time of reception. If it is not a detection signal from a specific detector, the control unit 12 controls the alarm notification unit 14 to immediately transmit an alarm signal indicating an intrusion abnormality to the center system 30 and the center system 30 issues an intrusion alarm. Is done.

  The mode change input information input from the operating device 21 by the visitor is input to the mode setting unit 16. The mode setting unit 16 confirms the operation authority under the control of the control unit 12 and accepts an input from the operation device 21. When the operation authority is recognized and the security mode release operation is completed, a release signal indicating that the security mode has been released is sent from the mode information sending unit 15 and transmitted to the center system 30 via the communication unit 17.

When the center system 30 receives the release signal within the first predetermined time, the center system 30 stops the timing operation for the first predetermined time, cancels the security mode, and shifts to the non-security mode. If the release signal is not received within the first predetermined time, the center system 30 determines that there is an intrusion abnormality in the security target area 50, displays the abnormality content on the display unit (not shown), Encourage the center system monitor to take action to deal with the abnormality.
Thus, after receiving a temporary alarm signal, when not receiving a cancellation | release signal within 1st predetermined time, by having comprised so that it might be determined as an intrusion abnormality, even if the security device 10 was destroyed, an abnormal alarm was guarded Even if it is not transmitted from the apparatus, it is possible to reliably detect an intrusion abnormality. This makes it possible to detect an intrusion from a monitoring area with the final detector more quickly and reliably.

  In addition, a timing unit 13 is provided in the security device 10 to transmit a temporary alarm signal, and at the same time, the timing unit 13 measures a second predetermined time shorter than the first predetermined time, and the second predetermined time has elapsed. However, if the operation for canceling the security mode is not completed, the alarm signal may be transmitted to the center system 30. Thus, in the center system 30, if neither the release signal nor the alarm signal due to the elapse of the second predetermined time has been received until the first predetermined time has elapsed after receiving the temporary alarm, the intruder It is possible to predict that there is a high possibility that the security device 10 has been destroyed.

  The center system 30 will be described with reference to FIG. FIG. 3 is a functional block diagram showing an embodiment of a portion related to the present invention of the center system. The temporary alarm signal and the release signal transmitted from the security device 10 through the communication line 55 are input to the mode management unit 35 of the monitoring device 32 via the communication interface (I / F) 31. When the mode management unit 35 receives the temporary alarm signal, the mode management unit 35 activates the time measuring unit 34 and measures the first predetermined time. When the release signal is input within the first predetermined time, the mode management unit 35 determines that the security mode has been released normally and ends the process. When the first predetermined time has elapsed, the mode management unit 35 outputs an intrusion signal to the abnormality monitoring unit 36. The abnormality monitoring unit 36 activates the alarm issuing unit 37 to display the details of the abnormality on the display unit, and prompts the monitoring personnel of the center system to take action for abnormality.

  An alarm signal transmitted from the security device 10 is input to the abnormality monitoring unit 36. When the abnormality monitoring unit 36 receives an alarm signal from the security device 10 due to the elapse of the second predetermined time, the abnormality monitoring unit 36 activates the alarm issuing unit 37 and displays the abnormality content on the display unit. Encourage observers to take anomalous action. On the other hand, in the configuration in which the security device 10 measures the second predetermined time, when the abnormality monitoring unit 36 receives the intrusion signal from the mode management unit 35 without receiving the alarm signal, the abnormality monitoring unit 36 The unit 36 determines that the security device in the monitoring target area that has transmitted the temporary alarm signal has been destroyed, displays the abnormality content on the display unit, and prompts the center system monitor to take an abnormality response action.

  FIG. 4 is a timing chart for explaining the timing from when the detector 20x outputs a detection signal to the security device 10 until the center system 30 issues an alarm in the security system according to the embodiment of the present invention. When the detector 20x detects an intruder and outputs a detection signal (1), a temporary alarm signal is transmitted from the security device 10 (2). When the center system 30 receives the temporary alarm signal, the center system 30 starts measuring the first predetermined time (3). When the user cancels the security mode and switches to the non-security mode (4), a cancellation signal is transmitted from the security device 10 to the center system 30 (5). When the center system 30 receives the release signal, the center system 30 ends the timing of the first predetermined time and changes the security mode to the non-security mode (6).

  When the center system 30 does not receive the release signal within the first predetermined time (7), it determines that an abnormal situation has occurred in the security target area and issues an alarm (8). Thus, when the detector detects an intrusion during the security mode, the center system is always notified of predetermined information, and the predetermined condition is satisfied within a predetermined time counted by the center system 30 based on the notification. If no release signal is received, it is determined that an abnormality has occurred. As a result, a security hole (monitoring blank time) in the procedure for canceling the security mode can be closed, and reliable security can be performed.

  Moreover, when transmitting a temporary alarm signal to the security device 10, it can also comprise so that the time measurement of the 2nd predetermined time may be started within the security device 10 (9). When the security mode is canceled and the non-security mode is set, the time measurement for the second predetermined time is reset (10). When the security mode is not canceled and the second predetermined time has elapsed (11), an alarm signal is transmitted from the security device 10 to the center system 30 (12), and an alarm is issued by the center system 30 (13). According to this aspect, when the warning signal is not transmitted after the second predetermined time after the security device 10 transmits the temporary warning signal, it can be determined that the security device is highly likely to be destroyed. Become. In this aspect, the second predetermined time is required to be shorter than the first predetermined time. For this reason, when the second predetermined time is set from the operating means (not shown), the second predetermined time set in the center system 30 is transmitted from the set time sending unit 18 and the set second predetermined time is transmitted. It is also possible to configure to adjust the first predetermined time according to the time. It is also possible to configure so that the setting of the first predetermined time and the second predetermined time can be changed by the operation device 21.

  The processing procedure of the center system 30 will be described using the flowchart of FIG. When the center system 30 receives a temporary alarm signal from the security device 10 (S101; YES), it starts counting the first predetermined time (S102). Next, whether or not the mode change information indicating that the release of the security mode is set to be effective is received from the security device 10 (S103). When mode change information for canceling the security mode is received (S103; YES), the security mode is canceled and the non-security mode is set (S105).

  If the mode change information has not been received, it is confirmed whether or not the first predetermined time has elapsed (S104). If the first predetermined time has not elapsed, the same processing is repeated. If the mode change information is not received even after the first predetermined time has elapsed (S104; YES), it is determined as an abnormal state, an alarm is issued, and a corresponding action is activated (S106).

  A processing procedure in a case where a time zone for prohibiting the security mode release is provided will be described using the flowchart of FIG. In this case, when a temporary alarm signal is received (S201; YES), first, the release prohibition time zone information stored in advance is read out. (S202). Next, it is compared whether or not the current time is within the read prohibition time zone (S203). If the current time is the cancellation prohibition time zone (S204; YES), an alarm is issued and an abnormality handling process is started (S205). If it is not the cancellation prohibition time zone, the process when the temporary alarm signal shown in FIG. 6 is received is sequentially executed from step S102.

It is a figure which shows the structure of the security system which concerns on embodiment of this invention. FIG. 2 is a functional block diagram showing the concept of the security device according to the embodiment of the present invention. It is a functional block diagram which shows one Embodiment of the part relevant to this invention of a center system. It is a timing chart for demonstrating the timing from transmission of the temporary alarm signal by a security device to the alarm issuing by a center system. It is a flowchart explaining the process sequence of the center system concerning one Embodiment of this invention. It is a processing procedure of the center system concerning other embodiment of this invention, Comprising: It is a flowchart which shows a processing procedure in case the time slot | zone which prohibits guard mode cancellation | release is provided.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10, 10-2, 10-3 Security apparatus 11 Detector interface 12 Control part 13 Timekeeping part 14 Temporary alarm notification part 15 Mode information transmission part 16 Mode setting part 17 Communication part 18 Set time transmission part 20a-20x Detector 21 Operation Device 30 Center system 31 Communication interface 32 Monitoring device 33 Time management unit 34 Timekeeping means 35 Mode management unit 36 Abnormality monitoring unit 37 Alarm issuing unit 50, 50-2, 50-3 Security target area 55 Communication line 60 Monitoring center

Claims (6)

At least one detector provided in a security target area, a security device that receives a detection signal from the detector, and connected to the security device through a communication line, based on data from the security device A security system having a center system for monitoring a security target area,
The security device
(1) a mode setting unit for setting a monitoring state of the security target area to a non-security mode or a security mode;
(2) an alarm notification unit for transmitting a temporary alarm signal to the center system when a detection signal is received from the detector during the security mode;
(3) When receiving a setting signal from the mode setting unit to release the security mode and switch to the non-security mode, a mode signal is transmitted to the center system to indicate that the security mode has been released. And
With
The center system is
(4) A security system comprising a mode management unit that determines an abnormality when the release signal is not received within a first predetermined time after receiving the temporary warning signal.   The alarm reporting unit transmits the temporary alarm signal only when receiving a detection signal from a predetermined specific detector, and when receiving a detection signal from another detector, The security system according to claim 1, wherein the security system is transmitted. The security system according to claim 1, further comprising means for changing the first predetermined time.   The security device further includes a timing unit that transmits the temporary alarm signal and starts measuring a second predetermined time, and the alarm notification unit guards from the mode setting unit within the second predetermined time. The security system according to any one of claims 1 to 3, wherein an alarm signal is transmitted to the center system when a setting signal for switching from the mode to the non-security mode is not received. The security device further includes a time setting unit for changing the second predetermined time, and information on the second predetermined time after the change to the center system when the second predetermined time is changed. It has a set time sending part to send,
The center system includes a time adjustment unit that adjusts the length of the first predetermined time according to the length of the second predetermined time when the information of the second predetermined time is received. The security system according to claim 4, wherein the security system is characterized. The center system includes a time management unit capable of setting a prohibited time zone for prohibiting the change setting from the security mode to the non-guard mode, and the mode management unit receives the temporary warning signal in the prohibited time zone. The security system according to any one of claims 1 to 5, wherein when it is done, it is immediately determined as abnormal.

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