CN2148988Y

CN2148988Y - Anti-misalarming program controller for anti-theft alarm system

Info

Publication number: CN2148988Y
Application number: CN 93238345
Authority: CN
Inventors: 韩志超; 魏春竹
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-03-22
Filing date: 1993-03-22
Publication date: 1993-12-08
Anticipated expiration: 2003-03-22

Abstract

The utility model provides an anti-misalarming program controller for an anti-theft alarm system, comprising a power supply circuit and a control circuit. The control circuit which comprises a nonstable multivibrator type oscillator, a relay and a peripheral circuit for charge and discharge is connected between a signal detector and an alarm device. Time of early warning, permitted times of warning in unit time and time of warning can be arranged in advance by regulating the anti-misalarming program controller to accomplish anti-misalarming program control. The utility model which can be collocated in any common anti-theft systems without line changes is suitable for the direct connection and the indirect connection of any alarm devices.

Description

Anti-misalarming program controller for anti-theft alarm system

The utility model relates to a kind of telltale, particularly relates to the anti-wrong report of a kind of guard against theft and alarm system program controller.

Common guard against theft and alarm system is by detector, sensor-type etc. and telltale (sound, light) two is partly formed as IR Passive formula, microwave, its course of work is when abnormal conditions appear in search coverage, detector will be made feedback to the unusual fluctuation signal, promptly export a delay switch amount, admittance is also kept telltale work.But owing to exist the multiple factor that may cause " system's misoperation " usually to some extent in the actual application environment, for reduce and avoid reporting by mistake, common way is at present, one compression investigative range, desensitization, it two is with the detector of two kinds of different operating principles and in order to reduce rate of false alarm, the former has lost detector performance, and the latter has improved use cost greatly.

The purpose of this utility model is to provide a kind of anti-wrong report of guard against theft and alarm system program controller that is connected in the detector of any working method and controls any telltale.

The utility model guard against theft and alarm system wrong report program controller is to realize like this, comprise power circuit and control circuit, power circuit is, transformer connects the 220V power supply, secondary coil connects the rectifier input end, output terminal connects the mu balanced circuit of being made up of two electric capacity and three terminal regulator, output 12V voltage.Control circuit is by unstable type multivibrator, relay and discharge and recharge peripheral circuit and constitute, its circuit is connected to, signal input circuit and clamp down on circuit output end and connect unstable type multivibrator trigger end respectively, the pre-warning time initialization circuit and the time setting circuit output terminal of warning connect unstable type multivibrator input end respectively, and display circuit and out control circuit input end connect unstable type multivibrator output terminal respectively.The input termination detector of this program controller signal input circuit, out control circuit output termination telltale.

The anti-wrong report of the utility model guard against theft and alarm system program controller principle of work is, can set in advance pre-warning time T by this program controller, allow the number of times A(that reports to the police to determine in unit interval by unstable type multivibrator model) and the time T 2 of warning, after detector receives the unusual fluctuation signal, the switching value of output is an early warning signal, and its delay time is an early warning period T 1.When the detector output one-period time is the early warning signal of T1, and program controller promptly enters alert status by waiing upon alert state, and when occurring early warning signal in the time A time at T, then program controller enters the state of warning and starts telltale; Otherwise during not enough A time of the early warning signal that occurs in the time at T, program controller then returns to the alert state (as Fig. 3) of waiing upon from alert status automatically.

The advantage of the anti-wrong report of the utility model guard against theft and alarm system program controller is that circuit is simple, can reduce effectively and avoid guard against theft and alarm system to send false positive signal, configurablely need not change circuit, be suitable for the direct or indirect control of any telltale in any common burglary-resisting system.

Describe the utility model embodiment in detail below in conjunction with accompanying drawing.

Fig. 1: the utility model circuit diagram

Fig. 2: the utility model fundamental diagram.

The anti-wrong report of the utility model guard against theft and alarm system program controller is made up of power circuit and control circuit.Wherein power circuit is, transformer T secondary coil connects rectifier D one end, and the other end connects the mu balanced circuit of being made up of capacitor C 7, C8 and three terminal regulator 7812, output 12V voltage.Control circuit is the unstable type multivibrator with integrated package NE556, and resistance R 3, capacitor C 1 and K switch 1 series connection constitute signal input circuit, one termination+12V, and other end ground connection, middle-end pin 6, K1 connects detector; Variable resistor R1 connects with electrochemical capacitor C2 and constitutes the pre-warning time initialization circuit, one termination R3 one end, and pin 7 behind the other end series connection C3, middle-end pin 2, pin 2 is connected with pin 1; R4 connects with C5 to constitute and clamps down on circuit, one termination+12V, other end pin 8; Variable resistor R2 connects with electrochemical capacitor C6 and constitutes the time setting circuit of warning, one termination+12V, and pin 11 behind the other end series connection C4, middle-end pin 13, pin 13 is connected with pin 12; R5 connects with LED and constitutes display circuit, and one termination pin 5, the other end are connected to the end of C4; A diode D1 and an end series diode D2 pin 9 after relay J RX-BF is in parallel, one group external control contact J2 connects telltale, and another group self-keeping contact connects K switch 2, and pin 4 is connected with pin 14, connects+12V pin 3 ground connection with pin 10 is same.Detector output early warning signal, the K1 closure, produce a trigger pulse, when A time of reaching that NE556 presets of the trigger pulse of K1 (when A=T ÷ T1, T 〉=AT1), pin 9 will overturn and be high level, this moment is closed if K1 receives behind the early warning signal once more, and relay J KX-BF external control contact J2 is pushed, and starts telltale simultaneously and reports to the police.

Claims

1, the anti-wrong report of a kind of guard against theft and alarm system program controller, comprise power circuit and control circuit, it is characterized in that being connected between detector and the telltale, its control circuit is by unstable type multivibrator, relay and discharge and recharge peripheral circuit and constitute, circuit connecting mode is, signal input circuit and clamp down on the output termination unstable type multivibrator trigger end of circuit, pre-warning time initialization circuit and the time setting circuit of warning output termination unstable type multivibrator input end, display circuit and out control circuit input termination unstable type multivibrator output terminal.