JPH07152979A - Crime preventive alarm device - Google Patents

Abstract

PURPOSE:To provide the crime preventive alarm system which prevents a false report from being sent to a security company, etc., owing to the misdetection of a remaining person as an external intruder since the device is set to an unmanned guard mode by mistake though the person still remains in a guard area. CONSTITUTION:The outputs of human body detectors 2a-2n which are arranged in the guard area so as to detect an external intruder are connected to a guard output through a guard setting switch 4. This device is provided with a remaining person indicating means 6 which indicates that there is the staying person by discriminating whether the value of electric power or a current which is consumed in the guard area is larger than a previously set level and whether or not there is a place wherein the luminance of lighting is larger than a previously set level; when a guard setting switch 4 is turned on, whether or not there is a remaining person is indicated and the switch operator recognizes it.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention monitors a presence or absence of an illegal intruder in a security area set inside a building, and outputs a warning when the illegal intruder is detected. It is about.

[0002]

2. Description of the Related Art This type of security alarm uses a well-known infrared passive type, ultrasonic type or radio wave type human body detection device for detecting the presence of a human body at one or more places to be monitored in a building or the like. While installing and setting a security area, connect each of these human body detection devices to a security controller that centrally manages, and when one of the human body detection devices detects an illegal intruder and outputs a human body detection signal, the security From the controller, the receiver of the security company is notified by radio or by wire via a public telephone line. By installing this security alarm system, for example, it is possible to monitor the inside of a large building unattended. If there is a residual person in the security area, even if the human body detection device detects it, it should not report to the security company etc. A "security setting switch" is provided to select whether or not to set the security system. Conventionally, the last evacuee turns on the security setting switch (sets to a warning state), and the first attendee starts every morning. It was turned off (cleared).

Usually, there is an indicator near the security setting switch for displaying the detection state of the human body detecting device, and when the residual person is detected by the human body detecting device, the last exiting person is still You can know that there is a false alarm can be prevented. However, when the remaining person is not in the detection area of the human body detection device, or when the movement is slow even if it is in the area, it is possible to turn on the security setting switch without noticing that there are people remaining in the building. In such a case, the human body detection device detects the remaining person as an illegal intruder, and this human body detection device outputs a human body detection signal and the security controller erroneously notifies the security company. There was a drawback that it would end up.

[0004]

SUMMARY OF THE INVENTION Therefore, according to the present invention, when the final remaining person turns on the security setting switch, if there is a remaining person in the building, the person who operated the switch is informed of the presence of the remaining person. By doing so, it was confirmed that the person who perceived that he was the last remaining person did not go around the building and confirm that no one else remained, and that no other person remained. On the contrary, the security setting switch is turned on with confidence, and conversely, when it is notified that there are residual people, by not turning on the security setting switch, it is possible to prevent false alarms to alarm companies etc. The problem to be solved is to provide an alarm device.

[0005]

A security alarm system according to the present invention is a security alarm system in which a human body detection device is installed in a predetermined area and an alarm signal is issued when any one of the human body detection devices outputs a human body detection signal. In the above, a residual person detecting means for detecting the presence or absence of a residual person in the predetermined area by means different from the human body detecting device, and a setting switch for setting the alarm signal to be notified to an external organization when the alarm signal is issued. And a false alarm preventing means for outputting the alarm signal to an external engine on condition that the residual person detecting means detects that there is no residual person when the setting switch is in the ON state.

The residual person notifying means of the present invention is output by a voice such as language, buzzer, etc., lamp display, characters, and graphic display, and the output is output near the place where the security setting switch is installed, and the security setting switch is operated. It is something that a person can recognize.

The residual person detecting means of the present invention may be any means different from the human body detecting device. For example, the power consumption value in the warning area and the brightness in the room in the warning area are larger than a predetermined value. Whether or not there is a residual person is determined depending on whether or not there is a residual person.

[0008]

When the person who thinks that he / she is the last remaining person turns on the security setting switch when he / she exits, if the remaining person detection means detects that the remaining person is present, the remaining person notification means Notify that. Therefore, a person who sets the security setting switch to ON recognizes the notification, returns the security setting switch to OFF, and exits, so that false alarms are prevented.
When the security setting switch is set to ON, if the residual person informing means notifies that there is no residual person, the last residual person exits with the security setting switch set to ON, for a predetermined time, for example, 1 minute. Later, the detection output of the human body detection device is set to the security system connected to the alarm output.

When the remaining person is working, the electric power is used for lighting equipment, air conditioning equipment, laboratory equipment, office equipment, etc., so that the power consumption value in the entire monitoring area exceeds a predetermined value. Therefore, it is possible to estimate the presence or absence of a residual person from the value of the power meter or the ammeter.

Further, when the residual person is present and working, the room, corridor, stairs, etc. in which the residual person is present is lit up, and therefore, for example, a sensor for distinguishing light and darkness at points such as stairs and corridors. By observing that any sensor is detecting "brightness", it is possible to estimate the presence or absence of a residual person based on whether or not all points are "dark". You can

[0011]

1 is a block diagram of an embodiment of the present invention. The output of the crime prevention human body detection device (2a), (2b), ..., (2n) arranged at a predetermined point in the security area is O.
It is input to the R gate circuit (12), and its output is sent to the alarm output (15) via the setting switch (4) and the transmitter (14). On the other hand, the residual signal detection means by means different from the human body detection device, for example, the output signal of the discrimination circuit (16) for discriminating that the value of the power meter (10) in the security area is larger than a predetermined value, and the illumination in the building. The output signal of the discrimination circuit (17) for discriminating that the value of the illuminance meter (7) for measuring the illuminance by the device is larger than a predetermined value is input to the OR gate circuit (18) with a prohibition terminal. Instead of the illuminator (7), a light receiver that emits an output when it is brighter than a predetermined level may be provided. A follow-up switch (19) that turns on and off in association with the setting switch (4) is provided. When the follow-up switch (19) is turned on, the OR gate circuit (1
The prohibition of 8) is released, and a state in which an output can be generated is entered. O
The output of the R gate (18) activates the notification means (6). The informing means (6) is a display lamp, a character display, or a buzzer, a voice or the like that can be heard by the operator of the setting switch (4), which is arranged near the setting switch (4). The discrimination circuits (16) and (17), the OR gates (12) and (18), the setting switch (4), the follow-up switch (19), the transmitter (14), and the notification means (6) described above operate the security controller (3). I am configuring.

FIG. 2 shows a block diagram of another embodiment of the present invention. The crime prevention warning system (1) is installed at a plurality of places to be watched and has a plurality of crime prevention human body detection devices (2), each of which is set as a warning area, like the existing one.
a), (2b), ..., (2n) and a security controller (3) to which the crime prevention human body detection devices (2a), (2b) ,. There is. Crime prevention human body detection device (2a), (2b), ...,
(2n) is for detecting a human body such as an infrared passive type, a radio wave type, or an ultrasonic type, and outputs a human body detection signal to the security controller (3). The security controller (3) is a receiving device (11) such as a security company when a human body detection signal is input from any of the crime prevention human body detection devices (2a), (2b), ..., (2n).
Wirelessly or by wire.

The security controller (3) controls the entire system in addition to the above-mentioned functions.
When the guard switch (4) is manually turned on, or when a command signal is input from the clock unit 8 at a preset time such as 9 pm, a lighting fixture, an air conditioner, and The power monitor signal from the control panel 10 that controls the power supply to the various electric devices (9a), (9b), ..., (9n) in the other building is taken in, and the power consumption is calculated in advance from the power monitor signal. Whether or not there is a residual person is determined by whether it is above the set level,
Indicator lights, if there are residual persons above the level,
When the notification means (6) equipped with at least one of a buzzer, a voice synthesizer, etc. is driven to notify the existence of the remaining person, and when the level is below the level and there is no remaining person, the electric device is In the case of a small building with a small number of people, it is easier to check the presence of the remaining person only by the brightness of the room.Therefore, instead of the power monitor signal, it is installed in each room equipped with an illumination lamp. Whether or not there is a residual person can be determined by whether or not the illuminance level signal input from the illuminance meter (7) is at the set level. On the other hand, when the special switch (5) is turned on, the predetermined processing described later is performed.

Note that it is not necessary to incorporate all the configurations shown in FIG. 2, and it is possible to select as appropriate according to the conditions of the installation place, the usage form, or the purpose of use. Next, the operation when the configurations of FIG. 2 are appropriately selected and combined will be described with reference to the flowcharts of FIGS. 3 to 5.

FIG. 3 is a flow chart in the case where the security switch (4) of FIG. 2 is a mechanical switch and the security switch (4) is turned on by a manual operation when the security release state is set to the security state. . Referring to the figure, in the alarm release state (step S1), when a person who recognizes that he / she is the last person to leave turns on the security switch (4) by manual operation (step S2), the security controller (3) ) Takes in the power monitor signal from the power distribution control panel (10) or the illuminance level signal from the illuminance meter (7), and from the power consumption level or illuminance level when unattended, which is experimentally determined and set in advance. Also, it is determined whether or not the above is true, that is, whether or not the remaining person is at the manned level (step S3).

When it is determined that the level is the unmanned level, the unmanned guard state is set to output the human body detection signal to the guard company (step S6). On the other hand, when it is determined that the person is at the manned level, the notifying means (6) is driven to notify that the remaining person exists (step S).
4). For example, the presence of a remaining person is notified by lighting an LED or the sound of a buzzer, or the distribution control panel (10).
Based on the signal from, the warning light indicating the content of "a person remains in the XX room on the XX floor" or the content thereof is notified by an artificial voice by the voice synthesizer.

The operator of the security switch (4) who confirms the presence of the remaining person on the spot by driving the notification means (6) without turning around the building immediately turns off the security switch (4). A return operation is performed (step S5). Then, when the security switch (4) is turned off, the process returns to step S1 and waits for the last exit person to turn on the security switch (4). In this way, even if the security switch (4) is turned on without noticing that there are people remaining, the security controller (3) controls the security alert release state and maintains the alerting means (6). Since the operator of the security switch (4) is informed of the presence of the remaining person by driving, the warning state is not set even though the person remains. Moreover, the operator of the security switch (4) can immediately confirm the presence of the remaining person without going around the building, and the alarm means (6)
Based on the content of the notification, the person can quickly stop in the room or place where he / she is left to request the ON operation of the security switch (4) and prevent forgetting to set the security state.

FIG. 4 shows that when the security switch (4) is automatically turned on at a predetermined time every day, or a specific person turns on the security switch (4) at a predetermined time every day regardless of the presence of a residual person. The flow chart at the time of turning on is shown. Warning release state of system (1) (step S11)
In the above, when the security switch (4) consisting of an electronic switch is turned on by the clock unit (8) at a set time, or a specific person such as a guard manually operates the mechanical security switch (4) at a predetermined time by manual operation. When turned on (step S1
2), the security controller (3) takes in the power monitor signal from the power control panel (10) or the illuminance level signal from the illuminance meter (7), and from the power consumption level or illuminance level when unattended The existence of the remaining person is determined by whether or not the above (step S13).

When it is determined that the level is the unmanned level, the security controller (3) sets the unmanned security state (step S15). On the other hand, when it is determined to be the manned level, a preset fixed time such as 5 minutes is counted (step S14),
The determination as to whether or not it is the manned level at every elapse of a certain time (step S13) is repeated until it is determined that it is not the manned level, and when the last person exits, the unmanned security state is automatically set (step S15). ) Will be done. In this example, there is an advantage that forgetting of setting can be prevented more reliably than in the case of FIG.

FIG. 4 is a flow chart when the special switch (5) shown in FIG. 1 is incorporated. This special switch (5) is used when a particular electric device needs to be constantly energized or lighting is turned on during an unattended night, and when a guard switch (4) is set, It is used, for example, in the case where it is desired to keep the alert release state in order to work overnight while the configuration is automatically turned on at a predetermined time.

Next, the flowchart of FIG. 5 will be described. System (1) alert release state (step S2
In 1), a clock unit (8) turns on a security switch (4) consisting of an electronic switch at a set time, or a specific person such as a guard is a mechanical security switch (4).
Is manually turned on at a predetermined time (step S2
2) and the security controller (3) take in either the power monitor signal from the power control panel (10) or the illuminance level signal from the illuminometer (7), and the level of power consumption when unattended Alternatively, it is determined whether or not the illuminance level is higher than the illuminance level, that is, whether or not the illuminance level is the manned level at which the residual person exists (step S23).

If it is determined that the level is the unmanned level, the security controller (3) is set to the unmanned security state (step S28). On the other hand, when it is determined that the manned level is set, it is determined whether the special switch (5) is set to the on state (step S2).
4) is performed. When the special switch (5) is in the off state, it is determined whether the manned level is reached or not at each elapse of a certain time (step S23) and the special switch (5) as in steps S13 and S14 of FIG. ) Is ON (step S24) is repeated until it is determined that it is not a manned level, and when the last person exits, the unmanned security state is automatically set (step S28).

On the other hand, if the special switch (5) is set to the ON state, then it is determined whether or not the manned level change is set (step S25). If the level change is set by specifying the type and number of specific electric equipment that is always energized or the number of lighting that is always on during an unattended night, unattended Then, the level of power consumption or illuminance is calculated, and the calculated discrimination level is changed and set (step S27). Then, the determination as to whether or not the power consumption or the illuminance is equal to or lower than the above-set change-determined level (step S27) is repeated at regular intervals, and the last person exits and the power consumption or the illuminance becomes equal to or lower than the determined level. When it is determined that there is something wrong (step S27), the unmanned security state is automatically set (step S28).

If it is determined that the manned level change is not set (step S25) after it is determined that the special switch (5) is on (step S24), the notification means 6 is driven. Then, the instruction to change and set the discrimination level is issued (step S29). Based on this notification, wait until a sufficient time (for example, 15 minutes) has elapsed for the remaining people to judge whether or not to work by staying overnight (step S30). By the time this time elapses,
When the remaining person does not change the discrimination level to stay overnight, the electronic security switch (4) is turned off (step S31), and the warning release state is continuously set (step S31). S32). Therefore, it is possible to prevent a false alarm from being sent to a security company by detecting a person who works while staying overnight. If the manned level change is set before the predetermined time elapses based on the notification of the determination level change setting instruction, the same processing as steps S26 to S28 described above is performed.

[0025]

According to the present invention, when the security switch (4) for controlling the notification to the security company is turned on, the existence of the residual person is notified from the power consumption or illuminance at that time, and the residual person is notified. As long as it exists, it can be prevented from being set to a warning state by mistake.

Further, since the notifying means for notifying the existence of the residual person is provided when it is confirmed that the residual person is present, for example, the presence setting of the residual person is set to the security setting switch (4) even without going around the building. It can be confirmed immediately when operating.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a block diagram showing another embodiment of the present invention.

FIG. 3 is a flow chart showing an operation in the embodiment of FIG.

FIG. 4 is a flowchart showing another operation example in the embodiment of FIG.

FIG. 5 is a flowchart showing still another operation example in the embodiment of FIG.

[Explanation of symbols]

 1 Crime Prevention Alarm System 2a-2n Crime Prevention Human Body Detector 3 Security Controller 4 Security Setting Switch 6 Notification Means 7 Illuminance Meter 10 Electricity Meter

Claims (5)

[Claims] 1. A human body detection device is installed in a predetermined area,
In a security alarm device that issues an alarm signal when any human body detection device outputs a human body detection signal, a security setting switch that connects the human body detection signal to the alarm output,
A follow-up switch that operates following the setting of the security setting switch, a residual person detecting means for detecting the presence or absence of a residual person in the area by means different from the human body detecting device, and the residual person A crime prevention alarm device comprising: a residual person informing means for informing that the person detecting means detects that a residual person is present. 2. The crime prevention alarm device according to claim 1, wherein the output of the residual person notifying means is recognizable to a person who has operated the security setting switch. 3. A human body detection device is installed in a predetermined area,
In a crime prevention alarm system that issues an alarm output when any human body detection device outputs a human body detection signal, residual person detection means for detecting the presence or absence of a residual person in the predetermined area by means different from the human body detection device. , When the alarm signal is issued, a security setting switch for setting it to be notified to an external organization, and when the security setting switch is in the ON state, the residual person detection means detects that there is no residual person. A crime prevention alarm device having a false alarm prevention means for outputting the above-mentioned alarm signal on the condition. 4. The residual person detection means detects that there is a residual person when the power consumption value of the commercial AC power supply supplied to the electric equipment in the predetermined area is larger than a predetermined level, and is smaller than the predetermined level. The crime prevention alarm device according to claim 1 or 3, which is for detecting that there is no residual person. 5. The crime prevention alarm device according to claim 1, wherein the residual person detection means detects whether any of the interior lights in the predetermined area is turned on.