CN2328061Y

CN2328061Y - Cut off alarm network against stealing

Info

Publication number: CN2328061Y
Application number: CN 98234088
Authority: CN
Inventors: 郭耀强
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-05-08
Filing date: 1998-05-08
Publication date: 1999-07-07
Anticipated expiration: 2008-05-08

Abstract

The utility model belongs to a cut off alarm network against stealing, which is composed of a main control module 1, a defense area condition signal driver 2, a network signal converter 3, a detection signal driver 4, an acoustic-optic alarm circuit 6, a communication dialing drive circuit 7 and an anti-theft net body 8. The utility model is characterized in that the anti-theft net body 8 is provided with a defense area conducting wire loop circuit 5 which is composed of a loop, and the loop is composed of a conducting wire network. If the anti-theft net body 8 is destroyed by prying, drilling, beating, etc., a defense area conducting wire loop S of the anti-theft net body 8 is disconnected and a host machine is driven to give out an alarm. The utility model has the advantages of low wrong alarming rate, high reliability and low cost.

Description

Breaking alarming formula anti-theft net

The utility model relates to a kind of anti-theft net, particularly a kind of anti-theft net of breaking alarming formula.

Because the public security problem is increasingly serious, people pay attention to more for antitheft, seem important more for the antitheft of balcony, basically just on balcony weld a bar-mat reinforcement with reinforcing bar covers balcony to present people, reach antitheft purpose, this mode all is the antitheft of passive type, because anti-theft net is just used reinforcing bar spot welding, the robber only need use simple tools, employing is struck, sled, the mode of boring just is easy to anti-theft net is opened, and especially at dead of night or owner when going out, will occur that the robber enters house and owner does not know, cause criminal case easily, the anti-theft net that uses exists theftproof performance poor now, the shortcoming that can not report to the police.

The breaking alarming formula anti-theft net of the superior performance that just can at once report to the police when the purpose of this utility model is to provide a kind of anti-theft net of wanting to destroy balcony as the robber to enter the house.

The purpose of this utility model can realize by following measure:

The utility model is made of main control module, defence area status signal driver, networking signal converter, detection signal drives device, communication dialing driving circuit, sound light alarming circuit, antitheft dictyosome, and it is characterized in that: antitheft dictyosome is provided with defence area wire loop circuit.

The mesh that defence area wire loop circuit is made up of the lead that is arranged on the antitheft dictyosome constitutes.

The utlity model has that reliability height, rate of false alarm are low, pick-proof, anti-drilling, advantage that price is low.

Referring to accompanying drawing, Fig. 1 is a functional-block diagram of the present utility model, and Fig. 2 is a signal flow graph of the present utility model, and Fig. 3 is a wiring diagram of the present utility model, and Fig. 4 is a dictyosome structural representation of the present utility model.

The utility model will be further described below in conjunction with accompanying drawing:

Referring to Fig. 1,1 is that main control module, 2 is that defence area status signal driver, 3 is that networking signal converter, 4 is that detection signal drives device, 5 is that defence area wire loop circuit, 6 is that sound light alarming circuit, 7 is the driving circuit that dials of communicating by letter.

Referring to Fig. 2, the output terminal that the detection signal that the signal output part of main control module 1 sends is transported to detection signal drives device 4 input ends, process detection signal drives device 4 is transported to defence area wire loop circuit 5, the signal conveys of defence area wire loop circuit 5 outputs is to defence area status signal driver 2, the output signal of defence area status signal driver 2 is input to the input end of main control module 1, and the alerting signal of main control module 1 outputs to the sound light alarming circuit 6 and the dialing driving circuit 7 of communicating by letter respectively.

Referring to Fig. 3, main control module 1 is made of microcomputer chip CPU, and detection signal drives device 4 can be made of latch 74LS373, defence area status signal driver 2 can be made of input buffer 74LS244, and networking signal frequency conversion device 3 is by D4, D3, C3, R3, R4, N2 constitutes.

Referring to Fig. 4,8 is antitheft dictyosome, and S is the lead that is distributed on the antitheft dictyosome 8.

The utility model is made of main control module 1, defence area status signal driver 2, networking signal converter 3, detection signal drives device 4, sound light alarming circuit 6, communication dialing driving circuit 7, antitheft dictyosome 8, it is characterized in that: be provided with defence area wire loop circuit 5 at antitheft dictyosome 8.

The mesh that defence area wire loop circuit 5 is made up of the lead that is arranged on the antitheft dictyosome 8 constitutes.

Referring to Fig. 3, the utility model is after system's energising, export the data input pin of a high level detection signal from the data-out port of main control module 1 to detection signal drives device 4 (latch 74LS373), cushion through latch 74LS373, high level signal is transported to the base stage of triode N1 from the data output end of latch 74LS373, make triode N1 conducting, high level signal is through the emitter of triode N1, behind the networking lead S by defence area wire loop circuit 5, through networking signal frequency conversion device 3, high level signal becomes networking, defence area status signal, again with the data input pin of signal conveys to networking, defence area status signal driver 2 (input buffer 74LS244), after amplifying, the defence area status signal is transported to the data input pin of main control module 1 from the data output end of 74LS244, and main control module 1 is made corresponding processing according to the level height state of defence area status signal.

Main control module 1 constantly sends detection signal, level state to S loop, networking, defence area scans detection, when the networking lead S of the defence area wire loop 5 on being arranged at antitheft dictyosome 8 is disconnected, the sensed current signal that main control module 1 sends is by behind the triode N1, can not form the loop through networking lead S, being equivalent to loop S is disconnected, there is not current signal to be input to networking signal converter 3, make signal converter 3 output high level in networking to main control module 1, after main control module 1 is received high level signal, send signal and be input to sound light alarming circuit 6, send the sound and light alarm signal; Perhaps issue a signal to communication dialing driving circuit 7, forward public telephone network to, be connected to by public telephone network on the phone or beeper of setting, also can be connected to 110 alarm stations.

The utility model is when practical application, with main control module 1, defence area status signal driver 2, networking signal converter 3, detection signal drives device 4, sound light alarming circuit 6, communication dialing driving circuit 7 usefulness box bodys are assembled together as the main frame of burglar alarm, with lead the anti-theft net wire loop circuit 5 on main frame and the antitheft dictyosome 8 is coupled together, the networking lead S of anti-theft net wire loop circuit 5 is by certain density and rule, mode with the networking is distributed on the anti-theft net 8, as the robber during by the antitheft dictyosome 8 of outside destroy, as pound, sled, bore, Deng, then must destroy the lead S that is distributed on the antitheft dictyosome 8, thereby cause the warning of main frame

Be provided with automatic fault 1 li of main control module and detect, N1 is breakdown when triode, can detect automatically by the fault self-checking function of main control module 1, and points out by suggestion device.

Claims

1, a kind of breaking alarming formula anti-theft net, constitute by main control module 1, defence area status signal driver 2, networking signal converter 3, detection signal drives device 4, sound light alarming circuit 6, communication dialing driving circuit 7, antitheft dictyosome 8, it is characterized in that: be provided with anti-theft net defence area wire loop circuit 5 at antitheft dictyosome 8.

2, breaking alarming formula anti-theft net according to claim 1, it is characterized in that: the mesh that anti-theft net defence area wire loop circuit 5 is made up of the lead that is distributed in antitheft dictyosome 8 constitutes.