CN2468057Y - Antitheft alarmer of electrical equipment for long-distance transmission - Google Patents

Abstract

The utility model relates to an antitheft alarm of electrical equipment for long-distance transmission. The utility model is characterized in that electrical equipment for transmission is connected in series with one transformer B; a secondary electrode L2 of the transformer B is connected with a rectifier D1-4 which is connected with a base electrode of an electronic switch control pipe BG1. Low-voltage alternating current which is generated by the transformer B through induction is converted into direct current through rectification, and the direct current which is generated by induction is applied on the base electrode of the electronic switch control pipe BG1 by rectification; the forward bias of the electronic switch control pipe BG1 is switched on, and the bias voltage of an electronic switch composite pipe BG2 is shorted to earth; meanwhile, BG2 and BG3 have no bias for cutoff, and a power supply of a buzzer or a transmitter is turned off by the cutoff of the electronic switch pipe BG3. Once the electrical equipment for transmission is stolen, B loses induced voltage to cause BG3 to be switched on so that the power supply of the buzzer or the transmitter is switched on, the utility model gives an alarm on site or transmits stolen wireless signals, distant places can receive the signal alarm by a receiver, and numerical codes are displayed by a computer.

Description

Long distance power transmission consumer burglar alarm

The utility model belongs to a kind of burglar alarm, is specially adapted to the wireless anti-theft alarming of remote high-low pressure power transmission line and consumer.

Along with the progress of science and technology development, wireless station has also all been built up in many remote mountain areas on high mountain top, satellite broadcasting television is received changes the station, and the stolen phenomenon of transmission of electricity consumer of these stations happens occasionally; Also have the transmission of electricity consumer in each large, medium and small oil field, the whole nation also not take simple and effective anti-theft measure.These transmission of electricity consumers are in a single day stolen, cause very big loss just for local people's productive life and national economy.Existing burglar alarm technical scheme adopt mostly broken string, infrared, be sensed as probe and realize burglar alarm, when visitor or animal enter the police circles zone, the i.e. wrong report of also will reporting to the police, very impracticable.

The purpose of this utility model provides a kind of remote-wireless burglar alarm for unattended transmission of electricity consumer exactly, and has avoided the interference false alarm of visitor or animal.

The technical solution of the utility model is: mutual inductor that primary impedance is ignored of (no matter hi-line or low-voltage line) polyphone on the transmission line of electricity of consumer.The induced potential that utilizes mutual inductor to produce behind rectifying and wave-filtering, is added in positive bias on the base stage of an electronic switch control tube, makes the control tube conducting and controls electronic switch and turn-off the working power of transmitting set or hummer and make it to quit work.When in case the transmission of electricity consumer is stolen, the mutual inductor that is connected on the transmission of electricity consumer circuit loses induced potential, the base stage of electronic switch control tube loses bias voltage and ends simultaneously, regularly electronic switch is out of control and working power that open transmitting set or hummer makes it work, hummer can send onsite alarming sound, but transmitting set transmitted radio signal, in the certain distance scope, utilize the radio signal that wireless receiving exchange receiver/transmitter emission comes and report to the police, simultaneously show stolen number, debate location, not stolen orientation according to wireless receiving exchange computer.The transmission of electricity consumer that belongs to the special line power supply can directly be installed the burglar alarm of being made up of mutual inductor, rectifier filer, electronic switch controller, power supply timing electronic switch and hummer in power supply place, realizes long distance power transmission consumer burglar alarm.Concrete scheme is as follows:

A kind of long distance power transmission consumer wireless anti-theft alarming device, regularly electronic switching circuit, direct supply charging circuit, hummer, transmitting set and wireless receiving exchange computer constitute by mutual inductor rectifier control circuit, power supply.It is characterized in that the mutual inductor rectifier control circuit is made up of mutual inductor, rectifier filer, resistance, voltage stabilizing diode, transistor; Power supply regularly electronic switching circuit is made up of transistor, resistance, electric capacity, accumulator; The direct supply charging circuit is constituted by a diode; Supporting prior art products transmitting set and wireless receiving exchange computer are formed the wireless anti-theft alarming device.It is characterized in that primary winding of mutual inductor L1 is serially connected on the transmission of electricity consumer circuit, secondary coil L2 links to each other with the ac input end of rectifier D1-4; The positive pole of rectifier D1-4, filter capacitor C1 positive pole and resistance R 1 one ends link to each other with diode (D6, D7) is anodal; The R1 other end, capacitor C 2 positive poles and stabilivolt D5 positive pole link to each other with the base stage of transistor BG1; The D6 negative pole links to each other with resistance R 2 one ends with timing capacitor C3 positive pole; The R2 other end links to each other with the BG1 collector with resistance R 3 one ends; The R3 other end links to each other with triode BG2 base stage; The BG2 emitter links to each other with triode BG3 base stage; The BG3 emitter links to each other with hummer or transmitting set; The D7 negative pole links to each other with the positive pole of direct supply E with (BG2, BG3) collector; D1-4 negative pole, (C1, C2) negative pole, D5 negative pole, BG1 emitter, hummer r negative pole and transmitting set f negative pole link to each other with the negative pole of direct supply E; It is indoor that wireless receiving exchange F is installed on the total monitoring of office.

The utility model has the advantages that: have simple in structurely, stable and reliable for performance, cost is low, and usage range is wide, can be installed in the easy stolen place of transmission of electricity consumer, sets hummer as on-the-spot burglar alarm; Set the wireless transmit receiver as the remote-wireless burglar alarm.How many transmitting sets that set different channel can be installed and away from the scene multichannel be installed and receive exchange, emission receives the computer code and shows and report to the police as remote-wireless.

Accompanying drawing 1 is the utility model circuit structure diagram

Below in conjunction with accompanying drawing the utility model is described further:

When transmission of electricity consumer operate as normal, high-voltage ac current is by primary winding of mutual inductor L1, and secondary coil L2 just responds to the induced potentials more than producing 15 volts, after D1-4 rectification C1 filtering, through diode D6 timing capacitor C3 is charged respectively; Through diode D7 accumulator E is charged; Be added in positive bias on the electronic switch control tube BG1 base stage through resistance R 1 step-down, make the conducting of BG1 positively biased.The conducting of BG1, make the positive bias shorted to earth of electronic switch complex pipe BG2 base stage and end, BG2 ends by making electronic switching tube BG3 base stage no-bias, thereby BG3 by the working power of turn-offing transmitting set or hummer, make transmitting set or hummer non-transformer and remain static.When the transmission of electricity consumer is stolen, being connected in electric current among the primary winding of mutual inductor L1 on the transmission line of electricity reduces or equals zero, the corresponding reduction of the induced potential of secondary coil L2 or equal zero, correspondingly cause the bias voltage of electronic switch control tube BG1 to reduce or equal zero, make BG1 become no-bias and end by former positive bias conducting, after BG1 ends, make electronic switch complex pipe BG2 be in positive bias within a certain period of time and conducting by timing capacitor C3 discharge, the conducting of BG2 makes the conducting of electronic switching tube BG3 positively biased simultaneously, thereby open the working power of transmitting set f or hummer r, hummer r works and sends onsite alarming sound or transmitting set f work and launch stolen radio signal, and wireless receiving exchange F receives stolen radio signal warning and shows the coding of stolen place transmitting set through computer digital.To 3 discharges of capacitor C in the electronic switching circuit complete after, make electronic switch turn-off the working power of hummer r or transmitting set f, this time onsite alarming or remote-wireless are reported to the police and are finished thus, and the security personnel also arrests the robber through the timely scene of pouncing on of running quickly, and resumes production.

Claims (3)

1, a kind of long distance power transmission consumer burglar alarm is specially adapted to the burglar alarm of power transmission line and consumer.This burglar alarm is by the mutual inductor rectifier control circuit, the timing electronic switching circuit, charging circuit, hummer, transmitting set and wireless receiver constitute, it is characterized in that the mutual inductor rectifier control circuit is by mutual inductor, rectifier filer, resistance, stabilivolt, transistor is formed, primary winding of mutual inductor L1 is serially connected on the transmission of electricity consumer circuit, secondary coil L2 links to each other with rectifier D1-4, the D1-4 cathode output end, filter capacitor C1 positive pole links to each other the R1 other end with resistance R 1 one ends, capacitor C 2 positive poles link to each other with transistor BG1 base stage with stabilivolt D5 positive pole.

2, transmission of electricity consumer burglar alarm according to claim 1, it is characterized in that power supply regularly electronic switching circuit forms by transistor, diode, resistance, electric capacity, accumulator, diode (D6, D7) is anodal to link to each other with rectifier D1-4 positive pole; The D6 negative pole links to each other with resistance R 2 one ends with timing capacitor C3 positive pole; The R2 other end links to each other with triode BG1 collector with resistance R 3 one ends; The R3 other end links to each other with triode BG2 base stage; The BG2 emitter links to each other with triode BG3 base stage; The BG3 emitter links to each other with hummer or transmitting set; The D7 negative pole links to each other with direct supply E is anodal with (BG2, BG3) collector.

3, according to claim 1 and 2 described burglar alarms, it is characterized in that under the prerequisite that adopts mutual inductor rectifier control circuit, power supply timing electronic switching circuit, set demonstration of transmitting set f and wireless receiving exchange F computer and warning, regularly electronic switching tube BG3 emitter links to each other with hummer r or transmitting set F, by the working time of power supply timing electronic switching circuit control hummer or transmitting set.

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