CN2204474Y - Automatic paging auti-damaged telephone alarming device - Google Patents

Abstract

The utility model discloses an automatic paging anti-damaged telephone alarming device, which comprises an anti-damaged sensor, an anti-damaged front end alarming device and a far-end alarm telephone. The structure of the utility model is characterized in that the anti-damaged sensor is composed of two independent closed loops which are formed by the corresponding connection of telephone user lines and a monitoring sensing line, wherein, the telephone user lines and the monitoring sensing line are arranged in parallel combination; the monitoring-sensing line is provided with a DC power supply, and both ends of the monitoring sensing line are connected with a plurality of resistors in series respectively. The anti-damaged front end alarming device comprises a bistable trigger, a monostable trigger connected with the bistable trigger, and a pulse code launcher used for storing paging numbers. The utility model has the advantages of simple structure, safe utilization and high reliability, and can send out alarm sounds to mobile users through automatic paging codes.

Description

Automatic paging auti-damaged telephone alarming device

The utility model relates to a kind of telephonic communication system that is suitable for fire, police, theft or the combination of other warning system, the tamper-proof telephone alarm device of especially a kind of automatic paging.

Along with expanding economy and growth in the living standard, people progressively strengthen security personnel's consciousness of family's property and common property, thereby the design and the patent documentations of many relevant telephone automatic alarm systems have appearred, Chinese patent CN2144901Y discloses a kind of " the language telephone set of reporting to the police automatically ", it is by transducer, the bistable state delay circuit, governor circuit, the language combiner circuit, the signaling circuit, phone hook switch circuit and 30 seconds delay circuits constitute, receive external information by transducer and trigger the bistable state delay circuit, and then make governor circuit control language combiner circuit dialogue machine send sound, the signaling circuit is to default phone signaling, and the hook switch circuit is connected phone automatically and carried out the automatic pointing language alarm.This class telephone alerting system structure is complicated, can only fix a point to report to the police to predetermined telephone set by the wire communication circuit, its alarm signal can not store yet, show, and also can cause confusion because of the false alarm that often occurs, and stays opportunity to the lawless person.In case especially communication line or relevant apparatus are destroyed, then alarm signal in time can't be sent out.So the accuracy and the fail safe of its warning are still not ideal enough.

The purpose of this utility model just is to overcome above-mentioned the deficiencies in the prior art part, provides a kind of structure simpler, does not influence the higher tamper-proof telephone alarm device of automatic paging of communication and security authority work and accuracy and fail safe.It utilize phone and automatic paging device manipulate the family automatically can reception when mobile, storage and display alarm signal, and be cut off or relevant apparatus sends corresponding alarm signal when destroyed at communication line.

The purpose of this utility model can be achieved by implementing following technical proposal: along telephone loop in addition and close and lay that two two ends are serially connected with a resistance respectively and with the monitoring sense line of a direct current power supply, they are connected to form two active closed-loop paths with corresponding two subscriber lines two ends respectively, constitute tamper-proof transducer.Its two ends are connected with the remote-end alarm device input that is made of ordinary telephone set, source double stable attitude trigger with the tamper-proof front end alarm input of being made up of flip and flop generator, monostable flipflop and pulse code sender respectively.Described flip and flop generator is reduced to input signal with the ohmically voltage in tamper-proof transducer two ends, produces state turnover and trigger associated mechanisms forward end and remote-end alarm respectively after processing and amplifying; Monostable flipflop is a kind of delay trigger circuit, it is connected with the pulse code sender with flip and flop generator, the certain hour work of every interval once after flip and flop generator produces state turnover, so that the calling alarm password that will be stored in the pulse code sender sends the pulse signal that gives elder generation's setting by the front end subscribers feeder to paging center, realize from the trend User Alarms.In order to obtain better effect, the utility model also can adopt following technical measures:

1, tamper-proof transducer is coupled to the input of flip and flop generator by the commutation gate circuit of being made up of two triodes, two diodes and some resistance.

2, in flip and flop generator, use the bistable state integrated package of two same models, be provided with the delay circuit that constitutes by fet, diode and resistance, electric capacity therebetween.Output is connected to midget relay with the control interlock circuit.

3, the source double stable attitude trigger with far-end onsite alarming function can be arranged in the ordinary telephone set with conventional alarm, constitutes a remote-end alarm telephone set.

Accompanying drawing 1 is an electric functional-block diagram of the present utility model.

Accompanying drawing 2 is the sensing of the utility model embodiment--the circuits for triggering connection layout.

The utility model is described in further detail below in conjunction with embodiment and accompanying drawing.In the ordinary telephone set 2 that conventional alarm 1 is housed, add a charged source and be connected to the source double stable attitude trigger 4 of chimes of doom optical generator 3 and form a remote-end alarm telephone set III.The front end of this telephone loop A, A ' is provided with a flip and flop generator 7 that is connected to monostable flipflop 5 and pulse code sender 6 and provides power supply with subscribers feeder A, A ', constitutes tamper-proof front end alarm I thus.It can be located in the cable branch casket of remote-end alarm telephone set III or in the program control total machine room of user and other be difficult near place of destroying.Between tamper-proof front end alarm I and remote-end alarm telephone set III, in addition and close and lay two and be serially connected with resistance R in two ends respectively along subscribers feeder A, A ' ₁, R ₂And R ₁', R ₂' and with monitoring sense line B, the B ' of DC power supply E, E ', its two ends are connected to form two separate active closed-loop paths with two subscriber lines A, A ' two ends respectively accordingly, form tamper-proof transducer II thus.Its front end passes through by two triode BG ₁, BG ₂With two diode D ₁, D ₂And the input coupling of flip and flop generator 7 in the commutation gate circuit formed of some resistance 8 and the tamper-proof front end alarm I; Its far-end is the input coupling by source double stable attitude trigger 4 in same commutation gate circuit 8 and the remote-end alarm telephone set III also.Flip and flop generator 4 and 7 is by two models bistable state ic chip that is JEC-2 ₁And IC ₂, be located at therebetween and comprise field effect transistor BG ₃, diode D ₃, resistance R and capacitor C constitute at interior delay circuit and the midget relay J that is positioned at output.Ic chip wherein ₁And IC ₂Supply pin 5 meet high voltage subscribers feeder A, its pin 8 all links to each other with low-voltage subscribers feeder A ' with pin 13.Ic chip ₁Input pin 7 be connected on the commutation gate circuit 8 in diode D ₁And D ₂Negative pole on, its output pin 2 is by diode D ₃With ic chip ₂Input pin 7 connect and ic chip ₂Output pin 2 be connected with the coil of midget relay J.Delay circuit wherein can be set at 1～5 second time of delay, the false alarm that produces to prevent misoperation; Midget relay J has a plurality of contacts, has automatic connection and sends alarm signal, cuts off functions such as getting in touch of telephone set and subscribers feeder automatically.Monostable flipflop 5 in the present embodiment adopts conventional RC delay circuit, is set at the upset in 3 minutes of every interval time of delay and triggers once.Pulse code sender 6 uses the routine call pulse to store integrated package, is used to store paging and alarm cipher, and the 3 fens clockwise paging centers in every interval send the pulse signal of once reporting to the police under the control of monostable flipflop 5.Present embodiment not only can utilize the wire communication circuit to transmit conventional various alarm signals to designated telephone, also above-mentioned conversion of signals can be become predetermined cipher by the User Alarms of paging center repetition in moving.Particularly telephone loop monitoring sense line and relevant apparatus destroyed after, still can report to the police in the acousto-optic mode at the scene of remote-end alarm telephone set III in time, simultaneously by tamper-proof front end alarm I through paging center to the user or specify beep-pager with password form repetition of alarms.When communication line is unimpeded, four resistance R at tamper-proof transducer II two ends ₁, R ₂And R ₁', R ₂' on all produce a constant voltage drop, connected commutation gate circuit 8 not conductings, thereby flip and flop generator 4,7 all do not work, and do not influence communication line.But when any subscribers feeder A, A ' and monitoring sense line B, B ' more than one or in the tamper-proof transducer II is cut off when destroying corresponding resistance R ₁, R ₁' go up voltage drop to disappear, and make corresponding triode BG ₁, BG ₂The conducting output signal of telecommunication passes through corresponding diode D again ₁, D ₂To ic chip ₁Input pin 7 input positive pulse signals, make its state turnover and from the output pin 2 output signals of telecommunication, through diode D ₃After postponing for 1～5 second with the RC delay circuit to ic chip ₂Input pin 7 input pulse signals, make its state turnover and from the output pin 2 output signals of telecommunication, and then drive midget relay J action, adhesive or disconnect a plurality of contacts and start interlock circuit work realizes on-the-spot sound and light alarm and automatic paging crypto-alarm.

The utility model has simple in structurely, safe and reliable and do not affect the normal operation of communication and security authority compared with prior art, utilizes existing radio automatic paging system to realize with the password form to characteristics such as mobile subscriber's warnings. Especially in the situation that communication line is cut off or relevant apparatus is destroyed, still can in time send corresponding alarm signal.

Claims (4)

1, the tamper-proof telephone alarm device of a kind of automatic paging, comprise transducer, bistable trigger-action circuit, single-shot trigger circuit, pulse signaling circuit and ordinary telephone set, it is characterized in that tamper-proof transducer (II) is by telephone loop (A), (A ') and with it and close two of laying and be serially connected with resistance (R at two ends respectively ₁), (R ₂) and (R ' ₁), (R ' ₂) and sensor monitoring line (B), (B ') correspondence of having DC power supply (E), (E ') connect into two active closed-loop paths and form, the front end of tamper-proof transducer (II) is connected with tamper-proof front end alarm (I) input that comprises flip and flop generator (7), monostable flipflop (5) and pulse code sender (6), and its far-end links to each other with source double stable attitude trigger (a 4) input.

2, the tamper-proof telephone alarm device of automatic paging according to claim 1 is characterized in that tamper-proof transducer (II) passes through by two triode (BG ₁), (BG ₂) and two diode (D ₁), (D ₂) the commutation gate circuit (8) that constitutes is connected with flip and flop generator (4), (7) respectively.

3, the tamper-proof telephone alarm device of automatic paging according to claim 1 and 2 is characterized in that flip and flop generator (4), (7) are by two bistable state integrated package (IC ₁), (IC ₂) and the therebetween fet (BG that comprises ₃), diode (D ₃), resistance (R), electric capacity (C) constitutes at interior delay circuit and midget relay (J).

4, the tamper-proof telephone alarm device of automatic paging according to claim 3 is characterized in that source double stable attitude trigger (4) is arranged in the ordinary telephone set (2) with conventional alarm (1), constitutes remote-end alarm telephone set (III).

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