JP2004110316A - Security system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a security system capable of reducing a burden of security by reducing the generation of false alarm in the security system. <P>SOLUTION: This security system is provided with a leave-from-building timer function, and furthermore, provided with a sensor 103a for guarding a security area, a timer unit 200 for counting the predetermined time when a building is set in the security condition by a security setting unit 201, and a control unit 210 for making a detecting signal, which is generated when the sensor 103a detects a human body, ineffective, in addition to making the sensor, which is provided near an entrance of the building, ineffective during the time till the time count by the timer unit 200 is completed. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a security device, and more particularly to a security device having a leaving timer function.
[0002]
[Prior art]
Currently, the security device has an entrance timer function and an exit timer function to prevent the security device from malfunctioning by the first person entering the building and the last person leaving the building (since both are generally provided together, Both are sometimes referred to as an entrance / exit timer function).
[0003]
In a security device used in a general building, a security area is configured by arranging a sensor for detecting a human body in each room, passage, window, or doorway in the building. The security area is set to a security state or a security release state by a user operating security setting means. The security setting means is generally provided near the entrance inside the building.
[0004]
Therefore, when the building is set to be in a security state, those who enter the building are required to install the sensor installed at the entrance of the building and the interior near the entrance before reaching the place where the security setting means is provided. Will be detected by the sensor. Also, those who leave the building after setting the building in the security state go to the entrance from the place where the security setting means is provided, and are installed inside the vicinity of the sensor and the sensor installed at the entrance of the building before leaving. Will be detected by the sensor. Then, based on the detection by the sensor, the security device notifies the monitoring center or the like.
[0005]
However, the above-mentioned entrance and exit are justified. When entry and exit are properly performed, a function is required to prevent notification to the monitoring center, and the corresponding function is the entry / exit timer function.
[0006]
When the security device has an entrance / exit timer function, the first occupant is sensed by the sensor while traveling from the entrance to the security setting means. At this time, the entrance timer starts measuring time, and while the timer is measuring, the detection signal of the sensor installed in the area from the entrance to the place where the security setting means is provided is suspended. Then, if an operation is performed on the security setting means from the security state to the security release state within the clocking time, the signal which is held by the sensor as a legitimate visitor is invalidated. If the operation for changing to the security release state is not performed within the clocking time, the monitoring center is notified based on the signal that has been held by the sensor and held as an intruder.
[0007]
On the other hand, the last exit person operates the security setting means to set the building to the security state. At this time, the exit timer starts counting time, and during the counting, the detection signal of the sensor installed in the area from the place where the security setting means is provided to the entrance is invalidated. Therefore, even when the last exit person is detected by the sensor before leaving the building, the detection signal of the sensor is invalidated and no notification is made to the monitoring center.
[0008]
As described above, the security device having the entrance / exit timer function can prevent the notification to the monitoring center even if it is detected by the sensor when the user is a legitimate entrance.
[0009]
In addition, a security device having an entry / exit timer function can be applied to a building in which a plurality of security areas are set in a building, such as a tenant building, and each of which is independently set to a security state or a security release state. In this case, the common area near the entrance of the building where the security setting means is installed is set to the security state in conjunction with the fact that all the security areas set for the building are in the security state. Therefore, the point that the entrance / exit timer applied to such a building does not function when there is a security area that is not set to the security state is different from a building where a single security area is set.
[0010]
[Patent Document 1]
JP-A-11-283155 (Claim 1)
[0011]
[Problems to be solved by the invention]
However, there is a case where a person who has finally exited the building returns to a room which is a security area after setting the security area to the security state by the security setting means. This is because, for example, after the last exit set security, he / she noticed that he had left something in the room, noticed that he had forgotten to turn off the lights and to turn off the power to the equipment, and also went out and rained. It may occur when returning to a room or the like for the reason that it is found that a person is falling and to return to take an umbrella.
[0012]
When returning to the security area after setting the security area to the security state, the final exit person should normally operate the security setting means again to release the security of the room to which the user should return. However, in most cases, the final exit returns to the room due to unexpected circumstances as described above, and often forgets to release the security. If the person returns to the room without releasing the security, the person who is finally leaving may be sensed by a security sensor in the room and reported to the monitoring center.
[0013]
A report made for detecting the last exit is false. However, the surveillance center must promptly send a security guard to the site due to a false alarm. For this reason, the false alarm in the security device is a factor that places a heavy burden on the security monitoring side, and it has been strongly desired to prevent occurrence thereof.
[0014]
The present invention has been made in view of the above points, and an object of the present invention is to provide a security device that can reduce false alarms generated in a security device and reduce the burden of security.
[0015]
[Means for Solving the Problems]
To achieve the above object, the invention according to claim 1 is provided near a doorway in a building, a security setting means for setting a security area set in the building to a security state or a security release state, and the security setting means. When the building is set in the security state by means, a predetermined time is measured, and until the time measurement is completed, detection of a sensor that detects a human body in an area from the installation position of the security setting means to the entrance / exit. A detection signal invalidating means for invalidating a signal, wherein the detection signal invalidating means measures a predetermined time when the security area is set to the security state in the security setting means. Until the time measurement ends, the detection signal of the sensor that detects a human body installed in the security area is further invalidated.
[0016]
According to the first aspect of the present invention, the security setting means provided near the entrance in the building sets the security area set in the building to the security state or the security release state. At this time, the detection signal invalidating unit measures a predetermined time, and invalidates the detection signal of the sensor that detects a human body in a region from the installation position of the security setting unit to the entrance until the timing is completed. Further, the detection signal invalidating means measures a predetermined time when the security area is set to the security state, and invalidates a detection signal of a sensor that detects a human body installed in the security area until the time measurement ends. To Therefore, it is possible to prevent the sensor from detecting the last exiting person who has returned to the security area after the security state has been set once, thereby preventing false alarms from occurring.
[0017]
The security device according to the invention according to claim 2, wherein a plurality of the security areas are set in a building, and the security setting unit sets each of the plurality of security areas to a security state or a security release state independently. The detection signal invalidating means, when any one of the plurality of security areas is set to the security state by the security setting means, measures a predetermined time for each security area set to the security state, and the time measurement is performed. Until the termination, the detection signal generated when the sensor provided in the security area detects a human body is invalidated.
[0018]
According to the second aspect of the present invention, when a plurality of security areas are set in the building and the security setting means sets each of the plurality of security areas independently to the security state or the security cancellation state, the detection signal is invalidated. The means measures a predetermined time for each security area set in the security state, and invalidates a detection signal generated by a sensor provided in this security area detecting a human body until the time measurement ends. I do. Therefore, even when there are a plurality of areas, it is possible to prevent the false exit from being detected by the sensor and detecting the last exit person returning to the area after setting the security state once.
[0019]
In the security device according to the third aspect of the present invention, a plurality of sensors for detecting a human body are provided in the security area, and the detection signal invalidating unit is configured to detect a specific one of the plurality of sensors in the security area. The output detection signal is invalidated.
[0020]
According to the third aspect of the present invention, a detection signal of a specific sensor among a plurality of sensors installed in a security area is invalidated. For this reason, it is possible to invalidate the detection signal of the sensor that is likely to detect the last exit person who has returned to the security area after the security setting, and to prevent a false alarm from occurring while suppressing a decrease in the security effect. .
[0021]
The security device according to the invention according to claim 4, further comprising time extension means for performing an operation of extending the time measured by the detection signal invalidating means in at least one of the security areas, wherein the time extension means is provided. The present invention is characterized in that a time period during which a detection signal of a sensor in a security area provided by itself is invalidated is extended.
[0022]
According to the fourth aspect of the present invention, when the last exit person returns to the area, the time can be further extended in the security area where the detection signal of the sensor is invalidated. For this reason, it is possible to prevent an erroneous report from being issued due to a delay in the exit of a person returning from the room. Further, the predetermined time for disabling the detection signal can be set to a minimum required time, and security of security can be maintained.
[0023]
A security device according to a fifth aspect of the present invention is characterized in that timekeeping forced termination means for forcibly terminating timekeeping by the detection signal invalidating means is provided near the security setting means or outside the building. .
[0024]
According to the fifth aspect of the invention, it is possible to forcibly end the timing by the detection signal invalidating means near the security setting means or outside the building, and to enable the detection signal of the sensor in the security area. For this reason, even after the last exit from the building, the detection signal of the sensor installed in the security area is not invalidated, and the reliability of security can be prevented from being impaired.
[0025]
The security device according to the invention according to claim 6, wherein invalidation canceling means for canceling the invalidation of the detection signal by the detection signal invalidating means is provided near the security setting means or outside the building. I do.
[0026]
According to the invention described in claim 6, it is possible to cancel the detection signal invalidation by the detection signal invalidating means near the security setting means or outside the building, and to enable the detection signal of the sensor in the security area. For this reason, even after the last exit from the building, the detection signal of the sensor installed in the security area is not invalidated, and the reliability of security can be prevented from being impaired.
[0027]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of a security device according to the present invention will be described in detail with reference to the accompanying drawings.
[0028]
(Embodiment 1)
FIG. 1 is a diagram for explaining a security device according to a first embodiment of the present invention, and shows a building containing a single organization (for example, a store) and a security state of the building. The building has an office 1, an office 2, a warehouse 1, and a warehouse 2, and further has an entrance hall which is a common area of each room.
[0029]
The office 1 is provided with a passive sensor 103a for detecting a human body and a magnet switch 105a for detecting the open / closed state of a window or a door. The office 2 is provided with a passive sensor 103b and a magnet switch 105b, the warehouse 1 is provided with a magnet switch 105c, and the warehouse 1 is provided with a magnet switch 105d. Further, passive sensors 106 and 107 are provided in the entrance hall, and a magnet switch 109 for detecting opening and closing of the door is provided at the entrance of the building. The office 1, the office 2, the warehouse 1, and the warehouse 2 are all areas guarded by a plurality of sensors, and each area is hereinafter also referred to as a security area.
[0030]
Further, the security device according to the first embodiment includes a security device 101 that is provided near an entrance in a building and that sets a security area set in the building to a security state or a security release state. The security device 101 has a security setting unit for setting a security area to a security state, as described later.
[0031]
FIG. 2 is a block diagram for explaining the security device 101. When the security area is set to the security state in the security setting unit 201, the security device 101 includes a timekeeping unit 200 that measures a predetermined time, and the security setting unit 201 is installed until the time measurement ends. It includes passive sensors 106 and 107 for detecting a human body in a region from a position to an entrance of a building, and a control unit 210 for invalidating a detection signal of the magnet switch 109. Such a function of the security device is a so-called leaving timer. The leaving timer is for preventing a false report from being issued by a person leaving the building after the security is set by the security setting unit 201.
[0032]
Further, the control unit 210 of the security device according to the present invention invalidates the detection signal of the passive sensor 103a that detects a human body installed in the security area during the time measurement by the time measurement unit 200. In the present embodiment, it is assumed that the place where the last exit person may return after the security is set is only the office 1 and the detection signal of the passive sensor 103a installed in the office 1 is invalidated. I have. Further, when temporarily returning to the office 1 for reasons such as going to retrieve a lost item, the detection signal of the magnet switch 105a is not invalidated because it is considered that the window will not be opened. By thus minimizing the number of sensors that invalidate the detection signal, the reliability of security is not impaired.
[0033]
The sensor for invalidating the detection signal is not limited to the one described above, and can be arbitrarily selected according to the situation of the building (security area), and a plurality of sensors may be targeted.
[0034]
In addition, the security device of the first embodiment includes passive sensors 103a, 106, and 107 as security means for guarding a security area (the passive sensor 103b and the magnet switches 105a to 105d are shown as a sensor group). Further, the security device 101 includes a notification unit 207 that outputs a detection signal to the monitoring center 209 under the control of the control unit 210, and notifies that an abnormality has occurred in the building.
[0035]
In the first embodiment configured as described above, when each sensor provided in the security area detects an abnormality, a detection signal is output, and the state in which the security device 101 notifies the monitoring center based on the detection signal. It is called security. At this time, the detection signal is said to be valid. When each sensor provided in the security area detects an abnormality, a detection signal is output, and a state in which the security device 101 ignores the detection signal is referred to as a security release state. Also, the detection signal is said to be invalid. This is similar to a general security device.
[0036]
The configuration described above operates as follows. That is, the last person leaving the building checks the locking state of each room and the like, and then heads to the security device 101 installed in the entrance hall. After the security setting unit 201 performs an operation of setting the security area to the security state, the user exits the building entrance. When the security area is set to the security state, the security device 101 starts security of the entire building.
[0037]
At this time, the control unit 210 of the security device 101 starts time measurement of a predetermined time by the timekeeping means 200 in the same manner as a general exit timer function, and a passive sensor provided in the entrance hall until the time measurement of the predetermined time is completed. The detection signals of the magnet switches 106 and 107 and the magnet switch 109 provided at the entrance of the building are invalidated.
[0038]
Further, the control unit 210 according to the first embodiment invalidates the detection signal of the passive sensor 103a in the office 1 until the clocking of the predetermined time by the clock unit 200 ends. Therefore, even if the last exit needs to return to the security area for some reason, and the security setting unit 201 is not operated to release the security in the security area, the security is not reported to the monitoring center 209 without being notified. You can return to the area.
[0039]
In the present embodiment, control unit 210 invalidates a detection signal of a specific sensor (passive sensor 103a) among a plurality of passive sensors in a security area. When the security device 101 inputs the detection signal output by the sensor, the input terminal or an address preset in the sensor determines which sensor has detected the abnormality and where in the security area the abnormality has been detected. Can be determined. Therefore, the security device 101 identifies the input terminal of the detection signal of the passive sensor 103a or the address of the passive sensor 103a, and ignores the detection signal corresponding to the passive sensor 103 to invalidate the detection signal of the passive sensor 103a. can do.
[0040]
As described above, for example, by setting only the sensor in the security area where a person who has left the exit area is likely to return to the target of detection signal invalidation, the security device of the first embodiment disables the sensor in the security area. In this case, the security can be prevented from lowering in reliability.
[0041]
By the way, when implementing the leaving timer function according to the present invention, the predetermined time is longer than the time set by the conventional leaving timer function. That is, there is a relationship of t2> t1 between the conventional predetermined time t1 and the predetermined time t2 of the present invention. In such a relationship, the time t1 is set based on the time required for the last exiting person to move from the security device 101 to the entrance of the building, whereas the time t2 is determined by the last exiting person from the security device 101. This is because it is set based on the time required to return to the area and move again to the entrance of the building.
[0042]
FIG. 3 is a flowchart for explaining the operation of the security device according to the first embodiment in which the detection signal of the sensor in the security area is invalidated. The control unit 210 determines whether a security state is set for the security area in the security setting unit 201 (step S301). If the security state has not been set (step S301: No), the process waits until the security state is set.
[0043]
If it is determined in step S301 that the security state has been set (step S301: Yes), the control unit 210 starts timing of the timing unit 200 (step S302). Then, control is performed so that the detection signals of the passive sensors 106 and 107 provided in the entrance hall, the magnet switch 109 provided in the entrance of the building, and the passive sensor 103a in the security area are invalidated (step S303). Next, the control unit 210 determines whether a predetermined time has elapsed (step S304). As a result, if the predetermined time is being measured (step S304: No), the measurement of the predetermined time is continued.
[0044]
On the other hand, when the clocking of the predetermined time is completed (Step S304: Yes), the control of invalidating the passive sensors 103a, 106, 107 and the magnet switch 109 is released (Step S305). As a result, those sensors become effective. Thereafter, the security setting unit 201 of the security device 101 determines whether the security of the security area has been released (step S306), and waits until the security is released. Regarding step S306, the entrance timer function of the related art is actually used, and the security is released without outputting a false alarm.
[0045]
The security device according to the first embodiment described above extends the application range of the exit timer function from the vicinity of the security device 101 to an arbitrary range in the security area, and once the security area is set to the security state, the security area is set. Erroneous information generated by returning to the above can be prevented. For this reason, it is possible to provide a security device that is easy to use for a person leaving the building and that can reduce the burden by reducing false alarms and reduce the burden on the security side.
[0046]
Note that the present invention is not limited to the first embodiment described above. That is, in the security device according to the first embodiment, as shown in FIG. 1, the invalidation canceling unit 101a for canceling the invalidation of the detection signal by the control unit 210 can be provided outside the vicinity of the entrance of the building. The invalidation canceling unit 101a inputs a control signal to the security device 101 by a user operation. As an operation method of the invalidation release unit 101a, an arbitrary method may be used according to the situation from among button operation, card operation, and the like. This control signal forcibly terminates the time measurement by the time measurement unit 200 of the security device 101, or cancels the invalidation of the detection signal by the control unit 201. Therefore, the invalidation canceling unit 101a can be said to be a configuration in which the sensor is enabled by forcibly terminating the timekeeping by the timekeeping unit 200 of the security device 101 or by canceling the invalidation of the detection signal by the control unit 201.
[0047]
By providing the invalidation canceling unit 101a, the final exit person operates the invalidation canceling unit 101a when returning to the security area and exiting after completing the use while the clocking of the predetermined time is being performed, The passive sensors 103a, 106, 107 and the magnet switch 109 can be restored. For this reason, the time during which the detection signal of each sensor becomes invalid is minimized, and the safety can be maintained while preventing the occurrence of false alarms.
[0048]
Although the invalidation canceling unit 101a is provided outside the building in FIG. 1, it may be provided near the security device 101 inside the building. In this case, only the passive sensor 103a is restored when the invalidation canceling unit 101a is operated, and the other sensors (sensors provided at the entrance hall and the building entrance) wait for a predetermined time (the invalidation canceling unit 101a is installed). After the time set based on the time required to move out of the place and leave the building). That is, the operation for restoring other sensors is the same as the exit timer function of the related art. According to such a configuration, the time during which the detection signal of the passive sensor 103a is invalid is minimized, and safety can be maintained while preventing occurrence of false alarm.
[0049]
(Embodiment 2)
Next, a security device according to a second embodiment of the present invention will be described. FIG. 4 is a diagram for explaining a security device according to the second embodiment of the present invention. The illustrated building is a five-story tenant building, and for simplicity of description, it is assumed that each floor (floor) includes a separate tenant 1 to tenant 5, respectively. Passive sensors 403a to 403e are provided on each floor, respectively. A common switch on the first floor is provided with a magnet switch 401 and a passive sensor 403 for detecting opening and closing of a door at a building entrance. Each floor is connected by an elevator E, and a security device 101 is provided near the landing on the first floor of the elevator E. Security area operation units 501b to 501e are provided near elevators on the second to fifth floors. FIG. 5 is a block diagram illustrating a security device according to the second embodiment of the present invention.
[0050]
The security device 101 has the same configuration as the security device described in the first embodiment, and a part of illustration and description is omitted. However, in the second embodiment, each floor is an independent security area. Each security area is different from the first embodiment in that the security area or the security release state is independently set by the last leaver of each tenant.
[0051]
The last leaver of each tenant leaves the floor to which he / she belongs in the security setting section 201 of the security device 101, and leaves the floor. When all floors are set to the security state by operation of the security setting unit 201, the security device 101 automatically sets the common unit to the security state and sets the entire building to the security state. At this time, the passive sensor 403 between the security device 101 and the entrance of the building and the magnet switch 401 provided at the entrance of the building are targets for invalidating the detection signal for a predetermined time by the conventional exit timer function.
[0052]
In the security device according to the second embodiment, the security setting unit 201 sets a security state for each of a plurality of security areas (floors). When any one of the plurality of security areas is set to the security state by the security setting unit 201, the timing unit 200 is set to the security state even when there is a security area in the security release state in the entire building. A predetermined time is counted for each security area. The control unit 210 controls the passive sensor 403 provided in the common unit, the magnet switch 401 provided in the building entrance, and the security areas set in the security state until the time measurement of the predetermined time by the time measurement unit 200 ends. The detection signal generated when the provided passive sensor detects a human body is invalidated. When all the security areas are not set to the security state, the common area and the building entrance are in the security release state and the detection signal is invalidated, so that the appearance does not change.
[0053]
In the security device according to the second embodiment, security area operation units 501b to 501e are provided near elevators on each of the second to fifth floors. By operating the security area operation unit 501, the time measured for the floor can be extended during the time measurement by the time measurement unit 200. Therefore, even if it is impossible to leave the building within a predetermined time due to trouble in finding things or the like, it is possible to obtain the required work time by extending the clocking time. In addition, when the last exit person returns to the tenant, if the security area operation unit 501 is always operated, the initial predetermined time measured by the timekeeping unit 200 is the same as the location where the security device 101 is provided. It may be set based on the time required to move to each tenant from. Then, the last exit person returns to the security area from the place where the security device 101 is provided, performs a search, etc., and compares it with a predetermined time set based on the time until moving to the building entrance again. Can be set to a short time, and the time during which the detection signal output from the sensor is invalidated when the final exit person leaves without returning to the tenant can be minimized.
[0054]
In addition, a notifying unit such as a speaker may be provided together with the security area operation unit 501, and an announcement urging the operation may be played when the clock unit 200 measures the predetermined time for the security area. Alternatively, when the time is approaching, it may be notified to that effect.
[0055]
According to the above-described second embodiment, the security device of the present invention is applied to a building having a plurality of security areas that are independently guarded and released, and a false alarm is given even if the last exit person returns to the security area. Can be prevented from occurring.
[0056]
Furthermore, the present invention is not limited to the above-described first and second embodiments. When a plurality of security areas are set, the present invention need not be applied to all security areas. For example, the exit timer function of the related art may be used for some security areas, and the present invention may be applied to other security areas.
[0057]
The security area operation unit 501 described in the second embodiment may be applied to a building in which a single security area is set as described in the first embodiment. In this case, the security area operation unit may be installed in the office room in the first embodiment, that is, a room to which the last exited person may return. In the case where there are a plurality of rooms to which the user may return, the rooms may be installed in each room.
[0058]
In the second embodiment, the security area operation unit 501 is installed near the elevator. However, the security area operation unit 501 may be installed near a place where the last exited person may return. Further, as in the first embodiment, the sensor for which the detection signal is to be invalidated may be a minimum necessary sensor among a plurality of sensors provided on each floor.
[0059]
【The invention's effect】
As described above, the invention described in claim 1 prevents a sensor from detecting a final exit person who has returned to the security area after setting the security state, thereby preventing false alarms from occurring. Therefore, there is an effect that it is possible to provide a security device that can reduce false alarms generated in the security device and reduce the burden of security.
[0060]
The invention described in claim 2 prevents the sensor from detecting the last exiting person who has returned to the security area after setting the security state once even when there are a plurality of security areas, and prevents false alarms from occurring. Therefore, there is an effect that it is possible to provide a security device that can reduce false alarms generated in the security device and reduce the burden of security.
[0061]
The third aspect of the invention has an effect that it is possible to prevent a false alarm from occurring while suppressing a decrease in the security effect.
[0062]
According to the fourth aspect of the invention, it is possible to prevent an erroneous report from being issued due to a delay in the exit of a person returning to the security area. In addition, there is an effect that the time measured by the detection signal invalidating means is set to be short in advance, and security of security can be maintained.
[0063]
The invention described in claim 5 has an effect that the time during which the detection signal is invalidated by forcibly terminating the clocking can be minimized, and the security of security can be maintained.
[0064]
The invention described in claim 6 has an effect that by canceling the invalidation of the detection signal, the time during which the detection signal is invalidated can be minimized, and the security of security can be maintained.
[Brief description of the drawings]
FIG. 1 is a diagram for explaining a security device according to a first embodiment of the present invention.
FIG. 2 is a block diagram illustrating a security device.
FIG. 3 is a flowchart illustrating an operation of a leaving sensor applied to a security area in the security device according to the first embodiment;
FIG. 4 is a diagram for explaining a security device according to a second embodiment of the present invention.
FIG. 5 is a block diagram for explaining a security device according to a second embodiment of the present invention.
[Explanation of symbols]
101 Security device
101a invalidation release unit
103a, 103b, 106, 107, 403, 403a to 403e Passive sensors
105a-105d, 109 Magnet switch
200 timer
201 Security setting section
207 Notification section
209 Monitoring Center
210 control unit
501 Security area operation unit

Claims (6)

A security setting means provided near the entrance in the building and for setting a security area set in the building to a security state or a security release state, and a predetermined time when the building is set to the security state in the security setting means. And a detection signal invalidating means for invalidating a detection signal of a sensor for detecting a human body in a region from an installation position of the security setting means to the entrance until the timing is completed. A device,
The detection signal invalidating means measures a predetermined time when the security area is set to the security state by the security setting means, and further detects a human body installed in the security area until the time measurement ends. A security device for invalidating a detection signal of a sensor that performs a security operation. When a plurality of the security areas are set in a building, and the security setting means sets each of the plurality of security areas independently to a security state or a security release state, the detection signal invalidating means includes a plurality of security areas. When any one of them is set in the security state by the security setting means, a predetermined time is measured for each security area set in the security state, and provided in the security area until the time measurement is completed. The security device according to claim 1, wherein a detection signal generated when the sensor detects a human body is invalidated. A plurality of sensors for detecting a human body are provided in the security area, and the detection signal invalidating means invalidates a detection signal output from a specific sensor among the plurality of sensors in the security area. The security device according to claim 1 or 2, wherein At least one of the security areas further includes a time extending means for performing an operation of extending the time measured by the detection signal invalidating means, and the time extending means detects a sensor in a security area provided by itself. The security device according to any one of claims 1 to 3, wherein a time period when the signal is invalidated is extended. The timekeeping compulsory terminating means for forcibly terminating timekeeping by the detection signal invalidating means is provided near the security setting means or outside the building. Security equipment. The invalidation canceling means for canceling the invalidation of the detection signal by the detection signal invalidating means is provided in the vicinity of the security setting means or outside the building. Security equipment.

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