JPH02143400A - Guard information transmitter - Google Patents

Abstract

PURPOSE:To prevent the sending of erroneous information obtained when a person to set the start of guard goes out from an entrance to a monitoring center by equipping this device with a means which never recognizes abnormality even when the means detects the abnormality in a previously determined sequence in an invasion system sensor loop after the start of the guard is set. CONSTITUTION:The abnormality in respective sensors and a change in a key box 50 are recognized by a central processing part 30, informed from this central processing part 30 to a line corresponding part 20, and communicated from the line corresponding part 20 through a communication line to the monitoring center. However, an invasion sensor sequence detecting part 40 never informs the central processing part 30 of the abnormality only in a case when invasion sensors 60, 70, 80 connected to the part 40 detect the abnormality in the sequence of the sensor 60 the sensor 70 the sensor 80. On the other hand, the part 40 informs the part 30 of the abnormality only in cases having the other abnormality detection sequences. Thus, it can be prevented that the erroneous information obtained when the person to set the start of the guard goes out is sent to the monitoring center.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a security information transmitting device that automatically reports an abnormal situation to a monitoring center via a communication line. The present invention relates to a W image information transmitting device that monitors people leaving the building.

[Prior art] In recent years, abnormal situation information (for example,
A security information system (i-device) is used to report incidents such as fires, gas leaks, and break-ins to the monitoring center via communication lines.

The sensor is also equipped with something like an intrusion sensor loop that detects intruders from one entrance and exit.

By the way, even if the security guard is to be held unattended, someone has to turn on the security switch at the end and leave the building. In this case, if no countermeasures are taken, a false alarm will be sent to the monitoring center each time the person leaves the building, indicating that there is a break-in attempt.

For this reason, the conventional security information IIB transmitter uses a timer to disable the sensor loop at the entrance/exit for a certain period of time after the start of security.

In other words, the structure was such that the abnormality of the intruder was not reported until the person who turned on the security switch left the building.

[11 Problems to be Solved] The conventional security information transmitting device mentioned above uses a timer to make the sensor at the entrance and exit valid from a false one. -・There was a problem in that it was not easy to use, as it required constant movement, and the user had to constantly look at the clock while acting.

The present invention has been made in view of the above-mentioned problems, and uses the detection order of intrusion sensors to monitor the case where the person who turned on the 'i6ii switch leaves the building. The purpose is to provide transmitting equipment.

In order to achieve the objective of [Means for Solving the Problems], the 1i information transmitting device of the present invention includes an intrusion sensor loop, a 2 sensor for detecting the occurrence of an abnormal situation, and a communication line. a line response unit that notifies the monitoring center of abnormal situation information via
A security information system equipped with a central processing unit that monitors the detection status of abnormal situations using equipped sensors, and when an abnormal situation is detected, controls the line response unit described in 2 above and notifies the monitoring center of abnormal situation information. In the transmitting device, the security sensor includes an intrusion sensor detection order f section that determines whether or not an abnormal situation is detected according to the order in which the abnormal situation is detected by the intrusion sensor loop. The composition is as follows.

With this configuration, even if the sensors detect an abnormality in a predetermined order in the intrusion system sensor loop after the security start is set, it will not be recognized as an abnormality.

[Example code] Hereinafter, the present invention will be explained in detail based on the drawings.

FIG. 1 is a block diagram of a security information transmitting device according to an embodiment of the present invention.

In the same figure, IO is a line (N line, 20 is a line corresponding section,
30 is a central processing unit, and 10 is an intrusion sensor order detection unit. Here, the central processing section 30 is connected to the line correspondence section 20, and the line correspondence section 2o is connected to the communication line 10.

Next, 50 is a key box for setting the start and release of security, and its output is connected to the central processing unit 3o and the intrusion sensor order detection unit 40. Also, 60,70.80
are intrusion sensors for entrances and exits, which are connected to the intrusion sensor order detection unit 40 as No. 1, No. 2, and No. 3. The output of the intrusion sensor order detection section 40 is output to the central processing section 30. :f: 90 is another sensor, which is directly connected to the central processing unit 30.

” - In the configuration described above, abnormality of each sensor and key box 5
The change in 0 is recognized by the central processing unit 30, and is passed from the central processing unit 30 to the line handling unit 20, where it is passed to the line handling unit 20.
0 reports to the monitoring center via a communication line.

By the way, the intrusion sensor order detection unit 40 determines whether the connected intrusion sensors are sensors (t60 - sensor 7 - sensor 80).
The central processing unit 30 is not notified of the abnormality only when an abnormality is detected in the order of. And only for other orders,
It has a notification mechanism.

Next, FIG. 2 is a circuit diagram of the intrusion sensor order detection section shown in the security information transmitting device of FIG. 1.

In FIG. 2, sensor loops 11, 2, and 3 correspond to intrusion sensors 60, 70.00, respectively.

In addition, since each sensor loop is normally closed, photocoupler 1. 2. A current flows through the primary side of 3. Therefore, since the transistor in the quadratic example of photocoupler 1.2°;3 is on, its output is low (
■-〇W). On the other hand, when the sensor detects an abnormality, the loop opens and the output of the photocoupler is high (H).
IGH).

The output of each photocoupler is a D-flip-flop (D-
It is connected to the 9-man power of F/F) 41 and the man-power of the 2-man AND circuit. On the other hand, D-flip-flops 41, 42
, 43.44 clocks C are given clocks whose frequency is sufficiently faster than the changing speed of the sensor.

Similarly, the output of the key box 50 is connected to the reset manual of each I)-flip-flop, and when the key box is set to start, all the D-free
・The knob flop is reset and returns to the period state.

Now, if sensor loop 11 becomes abnormal, D-flip-flop 4] is set, and the two-man AND circuit 45
One side becomes high, and one side of the two-man AND circuit 46 becomes low. As a result, when sensor loop No. 12 becomes abnormal next time, D-flip-flop 42 is set, and D-flip-flop 4;3 is not set. Further, when the D-flip-flop 42 is set, one side of the two-man AND circuit 47 becomes low, and even if the sensor loop No. 3 becomes inactive thereafter, the D-flip-flop 44 is not set. Therefore, the output of the two-person chaor circuit 48 remains low, and the central processing unit 30 is not notified of the abnormality.

However, if sensor loops 12 and 3 become abnormal first, the D-flip-flop 43 h) D-flip-flop 44 is set, and the output of the two-man OR circuit 4 becomes high, and the central processing unit 30 An abnormality is notified to. Also,
Even if sensor loop No. 3 becomes abnormal in sensor loop No. 11, the flip-flop 414 is set,
The output of the two-person chaor circuit 48 becomes high and the central processing unit 3
0 is notified of the abnormality.

[Effects of the Invention] As explained above, the present invention includes means for not recognizing abnormalities even if abnormalities are detected in a predetermined order in the sensor loop of the intrusion system after the security start is set. With this, it is possible to monitor the exiting behavior of the person who set the vi preparation mode until they exit from the entrance after setting the vi preparation start. Therefore, it is possible to prevent false alarms from being sent to the monitoring center, and there is an effect that it is possible to provide an information transmitting device that can significantly improve the quality of security and monitoring.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a V security information transmitting device according to an embodiment of the present invention, and FIG. 2 is a circuit diagram of an intrusion sensor order detection section shown in the security information transmitting device of FIG. 1. 3 0: 40: 50: 90: Communication line line support section Central processing section Intrusion sensor order detection section Key box 70.80: Intrusion sensor for entrance and exit and other sensors

Claims (1)

[Claims] A security sensor that includes an intrusion sensor loop and detects the occurrence of an abnormal situation, a line response unit that notifies the monitoring center of abnormal situation information via a communication line, and a line response unit that monitors the detection status of abnormal situations by the security sensor. , a security information transmitting device comprising a central processing unit that controls the line response unit and notifies the monitoring center of abnormal situation information when an abnormal situation is detected; 1. A security information transmitting device comprising: an intrusion sensor detection order determining section that determines whether an abnormal situation is detected according to the abnormal situation detection order.