JP2001167364A - Repeater of crime prevention system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a crime prevention system which can specify a crime prevention sensor generating an alarm and make clear the trespassing path of a trespasser. SOLUTION: This crime prevention system comprises crime prevention sensor SA, SB... which output electric signals corresponding to a trespasser, a repeater T1 having line connection terminals TL1, TL21... where crime prevention lines connected to the crime-prevention sensors SA, SB... are connected, and a crime- prevention receiver A which is equipped with line connection terminals AL1, AL2... connected with the crime-prevention lines L1, L2... connected to the repeater T1 and generates a crime prevention alarm when a trespasser detection signal is inputted to one of the line connection terminal AL1, AL2.... the repeater TL is equipped with an alarm display part T1-5 which makes displays corresponding to the line connection terminals TL1, TL2... to which trespasser detection signals are inputted from the crime prevention sensors SA, SB... and a signal output part T1-3 which outputs the trespasser detection signal as an alarm signal to the crime prevention receiver A when the trespasser detection signal is inputted to one of the line connection terminals.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a security system capable of specifying a security detector that has issued an alarm.

[0002]

2. Description of the Related Art FIG. 10A is a system configuration diagram for explaining a conventional security system, and FIG. 10B is an exploded side view showing a security sensor of the conventional security system.
FIGS. 11A and 11B are simplified circuit diagrams illustrating a conventional security system. As shown in FIG. 10A, the security system includes, for example, a security receiver A and a plurality of security sensors SA, SB,. Security Receiver A
Has a plurality of line connection terminals AL1, AL2,. For example, a security line L1 is connected to the line connection terminal AL1, a security line L2 is connected to the line connection terminal AL2, a security sensor SA is connected to the security line L1, and a security sensor is connected to the security line L2. SB is connected.

As shown in FIG. 11 (b), a security sensor comprises a base b1, a body b2, and a cover b3.
And a security detector b4, and optical systems b5 and b6. The base b1 is attached to a construction material surface such as a ceiling. The body b2 is attached to the base b1, and the cover b3 is attached to the body b2. Security detector b4
And the optical systems b5 and b6 are housed inside by a cover b3.

The security detector detects an intruder as follows and outputs an intruder detection signal. That is, when the intruder approaches the security sensor, the infrared rays emitted from the intruder pass through the cover b3, reach the optical system b6, and are reflected by the optical system b6. The infrared light reflected by the optical system b6 reaches the optical system b5, is reflected by the optical system b5, and is finally received by the security detector b4. The security detector b4 performs an electrical analog output according to the intensity of the received infrared light.

[0005] The electrical analog output output from the security detector b4 is amplified by an amplifier (not shown).
It is input to a determination unit (not shown). When the amplified analog output exceeds a predetermined level, the determination unit notifies the signal output unit (not shown) of the fact. Then, the signal output unit outputs an intruder detection signal by, for example, opening a closed contact output.

The security system shown in FIG. 10 (a) can be expressed as a simplified circuit diagram as shown in FIGS. 11 (a) and 11 (b). Here, in FIG. 11B, SA-1 is a signal output unit of the security sensor SA, and SB-1
Is a signal output section of the security sensor SB, SC-1 is a signal output section of the security sensor SC, and SD-1 is a signal output section of the security sensor SD.

That is, when the security sensors SA and SB are connected as shown by the solid line in FIG.
If one of the security sensors SA and SB detects an intruder and issues an alert, the signal output unit SA-1 shown in FIG.
Are closed, and the closed loops formed by closing the signal output section SB-1 are cut off, and this cutoff is detected, and the security sensors SA, S connected to the security lines L1, L2 are detected.
The fact that any of B detects an intruder can be notified by a security alarm.

When the security sensors SA, SB, SC, and SD are connected as shown by a broken line in FIG. 10A, the security receiver A is connected to any one of the security sensors SA, SB, SC, and SD. If the intruder detects and reports an intruder, the signal output unit SA-1, the signal output unit SB-1 and the signal output unit SC-1 shown in FIG. Since the closed loop formed by the closing of the signal output unit SD-1 is disconnected, this disconnection is detected, and one of the security sensors SA, SB, SC, and SD connected to the security line L1 is disconnected. Detection of an intruder can be notified by a security alarm.

[0009]

However, in the security system as described above, the security receiver A
When the connection is made as shown by the solid line in FIG. 10A, whether the security sensor SA connected to the security line L1 has detected an intruder, or the security sensor SB connected to the security line L2 Can detect whether an intruder has been detected, but if it is connected as shown by the broken line in FIG. 10A, the security sensors SA, SB, SC, and SC connected to the security line L1 Even if it is known that the SD has detected an intruder, the operation indicator light for notifying that the intruder has been lit is about several seconds. For example, which of the security sensors SA and SB detects the intruder? Had the problem of not knowing.

In addition, when the detection of the security sensor is malfunctioning,
If the security detector that malfunctioned cannot be specified, and if the detection of the security detector is an intruder detection, the intrusion route and the intrusion location cannot be specified. Further, it is not known whether the detected security sensor malfunctions or the intruder is detected, and measures against malfunctions of the security sensor itself are limited. The causes of this malfunction include (1) temperature changes in the detection area (wind, water vapor, etc.) (2) Popcorn noise generated by the detection element itself. Appropriate setting and masking of unnecessary detection area (4) Improvement of performance of detection element.

The present invention has been made in view of the above-described problems, and has as its object to identify the security sensor that has issued a warning, thereby making it possible to clarify the intrusion route of an intruder. Another object of the present invention is to provide an excellent security system that can identify a security sensor that has falsely reported early even in the case of a false report.

[0012]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a security detector for outputting an electric signal corresponding to an intruder, A repeater having a plurality of line connection terminals to which a security line connected to the sensor is connected, and a plurality of line connection terminals to which a security line connected to the repeater is connected, and any one of the line connection terminals In a security system comprising a security receiver that performs a security alarm when an intruder detection signal is input, the repeater displays a display corresponding to the line connection terminal to which the intruder detection signal from the security sensor has been input. And a signal output unit for outputting an alarm signal to the security receiver when an intruder detection signal is input to any of the line connection terminals.

[0013] In the invention according to the second aspect, in the invention according to the first aspect, the relay unit keeps displaying the alarm display unit until the reset button provided on the surface or inside is pressed. It is characterized by the following.

According to a third aspect of the present invention, in the first or the second aspect of the present invention, the repeater includes:
When receiving the intruder detection signal from the security sensor, the power supply to the security sensor is turned off.

According to a fourth aspect of the present invention, in the first to third aspects, the repeater includes:
When the power supply from the security receiver is cut off, the power supply of the built-in battery and the like is used to supply power to the security detector and the repeater itself, and an intruder detection signal from the security detector is output. If so, the first-half alert display section is turned on and held.

According to a fifth aspect of the present invention, in the first to fourth aspects of the present invention, the repeater includes:
When the intruder detection signal from the security sensor is continuously input for a predetermined time, an alarm signal is transmitted to the security receiver.

According to the sixth aspect of the present invention, a first aspect is provided.
(4) The repeater is characterized in that the repeater is provided with a logical product operation means for calculating a logical sum of an input signal from a security line connected to a predetermined security sensor.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of a repeater of a security system according to the present invention will be described in detail with reference to FIGS. 1 to 4, and a second embodiment will be described in detail with reference to FIGS. Will be described.

[First Embodiment] FIG. 1 is a system configuration diagram for explaining a security system. As shown in FIG.
This security system includes a security receiver A, a plurality of security sensors SA, SB... Sn, and a plurality of repeaters T1,. The security receiver A is the same as that described in the above-described related art, and includes, for example, a plurality of line connection terminals AL1,. The security line L1 is connected to the line connection terminal AL1.
1 is connected to a repeater T1.

The security sensors SA, SB... Sn are the same as those described in the above-mentioned prior art, receive infrared rays radiated from the intruder, and detect the intruder based on the intensity of the received infrared rays. It is determined whether or not there is an intruder when the intensity of the received infrared ray exceeds a predetermined level, and outputs an intruder detection signal when it is determined that there is an intruder.

The repeater T1 has a plurality of line connection terminals TL
, TLn, a plurality of district windows HT1,... HTn, etc., an alarm display section, a sensor alarm input section T1-2, and a signal output section T1-3. The security sensor SA is connected to the line connection terminal TL1 via the security line L1-1.
A security sensor Sn is connected to the line connection terminal TLn via a security line Ln-1. District window HT of alarm display section T1-5
1 indicates that an intruder detection signal is input to the line connection terminal TL1.

FIG. 2 is an internal configuration diagram of the repeater. FIG.
As shown, the sensor alarm input unit T1-2, the signal output unit T1-3, the circuit power supply unit T1-4, and the alarm display unit T1-
5 and CPUT1-1. It should be noted that the sensor alarm input units T1-2 have input circuits corresponding in number to the predetermined number of connected security sensors. Further, the signal output section 1-3 includes line connection terminals TL1,.
When an intruder detection signal from the security sensor is input to any of n, an alarm signal that is an intruder detection signal is output to the security receiver A.

The repeater T1 receives the alarm of the security sensor from the sensor alarm input unit T1-2, and outputs the area windows HT1, HT2,... Of the alarm display unit T1-5 according to the line of the security sensor.
·································································································································· 検 知 · The repeater T1 immediately sends an alarm signal to the security receiver A after receiving the alarm from the security detector. The display on the district window or the like is continued until a reset button (not shown) provided on the surface of the repeater or inside thereof is pressed. Then, after receiving the alarm signal of the security detector, the repeater T1 receives the CPUT1-
1 sends a control command to the circuit power supply unit T1-4 to turn off the power supply to the security sensor, and thereby the circuit power supply unit T1-4.
-4 turns off the power supply to the security sensor.

By turning off the power supply of the security sensor, the security sensor does not detect the security officer when the security officer or the like enters the security area by the alarm operation of the receiver. is there. Therefore, it is possible to install the repeater regardless of the inside or outside of the guard area. If the power supply of the security detector is not turned off, when a manager, a security guard, etc. enters the guard area by the alarm operation of the receiver,
The security detector detects the manager, etc., and the display on the repeater is the detection display of the intruder.

When the power supply from the security receiver A is cut off, the repeater supplies power to the security detector and the repeater itself by backing up the battery BT and the like built therein.

The security system configured as described above
It is operated as follows. That is, as shown in FIG.
A room F having an entrance / exit E is located at a position facing the passage D, and a repeater T1 is installed near the entrance / exit E facing the passage D. In the room F, windows F1 and F2 are provided, and on the ceiling, security sensors SA and SB are provided. The security sensor SA is connected to the line connection terminal TL1 of the repeater T1 via the security line L1-1, and the security sensor SB is connected to the security line L.
It is connected to the line connection terminal TL2 of the repeater T1 via 1-2. The signal output unit T1-3 of the repeater T1 is connected to the line connection terminal AL1 of the security receiver A via the security line L1.
Connected to.

For example, as shown in FIG. 3 (e), in response to the intrusion from the intrusion a shown in FIG. 4, the security detector SA detects the intruder and issues an alert, and outputs an intruder detection signal. Then, as shown in FIG. 3 (g), the repeater T1 illuminates and displays the district window HT1 of the alarm display section T1-5, holds this illuminated display, and outputs the security line L from the signal output section T1-3.
1 and outputs an intruder detection signal to the line connection terminal AL1 of the security receiver A. The security receiver A receives this signal and notifies that there is an intruder in the guard area of the security line L1, as shown in FIG. 3 (i). So the guards
The train rushes to the location of the repeater T1 connected to the security line L1.

Then, the alarm display section T1-5 of the repeater T1
Since the district window HT1 is lit, it can be recognized that the security sensor SA in the room F has detected and issued an intruder.
Here, as shown in FIG. 3 (k), the district window HT1 of the alarm display section T1-5 of the repeater T1 remains lit until a reset button provided on the surface or inside of the repeater is pressed. . Also, assuming that the security detector SB detects and reports an intruder and outputs an intruder detection signal in response to the intrusion from the intrusion b shown in FIG. 4, the repeater T1 is shown in FIG. As described above, the area window HT2 of the alarm display section T1-5 is lit and displayed, and the lit display is maintained.

While the repeater is backing up, the above-described operations of the sensor and the repeater are the same as when the power of the repeater is supplied. That is, as shown in FIG.
When the power supply from the security receiver A is cut off, the repeater T1 supplies power to the security detector and the repeater itself by backing up the battery BT and the like built therein, and detects an intruder from the security detector. When a signal is received, the corresponding district window is turned on and held.

Thus, in the security system configured as described above, the security sensor that has issued the alarm can be specified,
In addition to being able to clarify the intruder's intrusion route, it is also possible to identify the security detector that falsely reported early in the event of a false report. be able to. In addition, when a security sensor makes a false report, the detector can be specified at an early stage, so that services such as on-site response are greatly improved.

[Second Embodiment] FIG. 5 is a system configuration diagram for explaining a security system according to this embodiment. In FIG. 5, the same parts as those in the above-described first embodiment are denoted by the same reference numerals, and detailed description of the same reference numerals will be omitted. The repeater of this security system differs from that of the first embodiment in that it is characterized by the AND setting of the security circuit (security sensor alarm input unit) or the security sensor alarm accumulation time. This is a configuration having a setting unit that can perform setting.

FIG. 6 is an internal configuration diagram of the repeater T1.
As shown in FIG. 6, the repeater according to the present embodiment includes a sensor alarm input unit T1-2, a signal output unit T1-3, a circuit power supply unit T1-4, and an alarm display unit T1-5. And CPUT1-1
And a setting unit T1-6. Here, the setting unit T1-6 is a security circuit to which the security sensor is connected as described above, and is a security circuit Ln-1,..., Ln-1.
The ND setting or the setting of the security sensor alert accumulation time can be performed.

Next, the processing of the alarm signal of the security sensor of the repeater will be described in the following cases (1) and (2). (1) The repeater T1 sends an alarm signal to the security receiver A when receiving the alarm signal of the security line by AND.
In this case, the setting unit serving as a logical AND operation means calculates the AND of the security line L1-1 to which the security sensor SA shown in FIG. 5A is connected and the security line Ln-1 to which the security sensor SB is connected. Set at T1-6, for example, as shown in FIG.
An alarm signal is sent to the security receiver A by taking the AND of both security lines for the intrusion from the Internet.

That is, the security sensor S shown in FIG.
7A and the detection output of the security sensor SB shown in FIG.
The alarm signal shown in (i) is transmitted. At this time, the repeater T1
7 (g) and 7 (h), the alarm display section T1-
The five district windows HT1 and HT2 are lit.

Alternatively, as shown in FIG.
When A to SC and security detector SD are installed, FIG.
The security line L1-1 of the security sensors SA to SC shown in FIG.
AND of the line Ln-1 of the security sensor SD and
An alarm signal may be sent to the security receiver A only when the condition D is satisfied. (2) When only the security sensor SA or the security sensor SB continues to issue a warning (intruder detection signal) within a predetermined time t, the relay T1 issues an alarm signal to the security receiver A. Is sent. For example, in the case of the intrusion route b in FIG. 8, the security sensor has a plurality of detection beams, and the intruder reaches the safe while traversing any number of the detection beams.
When crossing this detection beam (penetration speed of a sneaking foot)
Then, the alarm signal of the security sensor SB is transmitted. Therefore, if the intruder moves in the detection area of the security sensor SA for the above-mentioned predetermined time, the security sensor SB will transmit an alarm signal as shown in FIG. After t, the repeater T1 sends an alarm signal to the security receiver A as shown in FIG.

The repeater T1 counts the number of alarm signals (ON / OFF signals of the relay contacts, etc.) of the security sensor with a pulse counter (not shown), and when the count exceeds a preset count, The repeater T1 may transmit an alarm signal (intruder detection signal) to the security receiver A.

The present invention is not limited to the above embodiment, but can be implemented in various forms. For example, the present invention can be applied not only to the security system of the above embodiment but also to other security systems such as an entrance / exit management system linked to the security system.

[0038]

According to the first aspect of the present invention, it is possible to provide an excellent security system that can identify a security sensor that has issued a warning and clarify an intruder's intrusion route.

According to the invention described in claim 2, according to claim 1
In addition to the effect of the invention described, an excellent crime prevention system that enables the clarification of the intrusion route by leaving the display of the area window of the repeater, and that can identify the security sensor that falsely reported early even in the case of a false report. Is provided.

According to the invention described in claim 3, according to claim 1
In addition to the effects of the invention described in the second aspect, furthermore, there is an effect that it is possible to provide an excellent security system that can increase the reliability and can be installed regardless of the installation location of the repeater inside or outside the guard area.

According to the invention described in claim 4, according to claim 1,
In addition to the effects of the third aspect of the present invention, there is an effect that a more reliable and superior security system can be provided by backing up the power supply.

According to the fifth and sixth aspects of the present invention, in addition to the effects of the first to fourth aspects of the present invention, further, when the security line is set to AND, or when a certain period of time, the alarm is issued. To send an alarm signal to the security receiver only when you continue to
Further, there is an effect that an excellent security system in which the detection reliability is improved can be provided.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram illustrating a connection relationship among a repeater, a security receiver, and a security sensor of a security system according to a first embodiment of the present invention.

FIG. 2 is an internal configuration diagram of a repeater of the security system.

FIG. 3 is a diagram illustrating the operation of the repeater of the security system.

FIG. 4 is a diagram illustrating an intrusion route in the security system.

FIG. 5 is a system configuration diagram illustrating a connection relationship among a repeater, a security receiver, and a security sensor of the security system according to the second embodiment of the present invention.

FIG. 6 is an internal configuration diagram of a repeater of the security system.

FIG. 7 is a diagram illustrating the operation of the repeater of the security system.

FIG. 8 is a diagram illustrating an intrusion route in the security system.

FIG. 9 is a diagram illustrating an intrusion route in the security system.

10A is a system configuration diagram illustrating a conventional security system, and FIG. 10B is an exploded side view illustrating a security sensor of the conventional security system.

FIG. 11 is a simplified circuit diagram illustrating a conventional security system.

[Explanation of symbols]

 A Security receiver AL1, AL2,..., ALn Line connection terminal L1, L2,. -4 Circuit power supply unit T1-5 Alarm display unit T1-6 Setting unit TL1, TL2, ... TLn Line connection terminal BT battery L1-1, L2-1, Ln-1 Security line HT1, HT1, ... HTn area window SA, SB, SC, SD,... Sn Sn security detector SA-1 signal output section SB-1 signal output section SC-1 signal output section SD-1 signal output section

 ──────────────────────────────────────────────────続 き Continued on the front page F-term (reference) GG73

Claims (6)

[Claims] 1. A security detector for outputting an intruder detection signal corresponding to an intruder, a repeater having a plurality of line connection terminals to which a security line connected to the security detector is connected, A security system comprising: a plurality of line connection terminals to which a security line to be connected is connected, and a security receiver that performs a security alarm when an intruder detection signal is input to any of the line connection terminals. Is an alarm display unit that performs display corresponding to the line connection terminal to which the intruder detection signal from the security sensor is input, and as an alarm signal when an intruder detection signal is input to any of the line connection terminals A signal output unit for outputting the signal to the security receiver. 2. The repeater according to claim 1, wherein the repeater continues the display of the alarm display unit until a reset button provided on the surface or inside is pressed. 3. The relay device, when receiving the intruder detection signal from the security detector, turns off the power supply to the security detector that has transmitted the intruder detection signal. A repeater for a security system according to claim 2. 4. When the power supply from the security receiver is cut off, the repeater supplies power to the security detector and the repeater itself by backing up a power supply such as a built-in battery. 4. The transponder of the security system according to claim 1, wherein the alarm display section is turned on and held if there is an intruder detection signal from the security sensor. 5. The relay device sends an alarm signal to the security receiver if the intruder detection signal from the security sensor is continuously input for a predetermined period of time. A repeater for a security system according to claim 1. 6. The relay device according to claim 1, wherein said repeater is provided with a logical product calculating means for calculating a logical product of an input signal from a security line connected to a predetermined security sensor.
A repeater for the described security system.