CN202583288U

CN202583288U - Safety protection device of electric meter box

Info

Publication number: CN202583288U
Application number: CN 201220261153
Authority: CN
Inventors: 蒋正坤
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-06-05
Filing date: 2012-06-05
Publication date: 2012-12-05
Anticipated expiration: 2022-06-05

Abstract

The utility model relates to a safety protection device, and in particular relates to a safety protection device of an electric meter box. The safety protection device comprises a three-phase voltage acquisition circuit, a switch signal triggering circuit, a singlechip control circuit and a wireless transmitting and receiving circuit, wherein signals acquired by the three-phase voltage acquisition circuit and the switch signal triggering circuit are controlled by the singlechip control circuit to be output to the wireless transmitting and receiving circuit. The safety protection device acquires the signals through the three-phase voltage acquisition circuit; when the acquired signals are abnormal, alarming signals are sent out through a wireless module; a wireless receiving module alarming host machine displays the alarming address and location; and when users open the electric meter box privately, the alarming signals are sent out to an appointed operator on duty, and the appointed operator on duty monitor each monitoring point. The safety protection device provided by the utility model can integrate voltage monitoring and electricity stealing prevention.

Description

The ammeter box safety apparatus

Technical field

The utility model relates to a kind of crime prevention device, particularly be a kind of ammeter box safety apparatus.

Background technology

At present, electric power is the leading industry of every profession and trade, is the power source of every profession and trade; Ammeter box is an outer case of power supply administration's metering electric energy number of degrees, and country is annual huge because of the stealing loss, has upset social electricity consumption order; In order to prevent the electric stealer, power department has been done a large amount of work, secondly; The quality of voltage quality of ammeter box is also concerning the quality of power supply, and prior art can't be concentrated monitoring voltage and anti-electricity-theft in one.

The utility model content

The purpose of the utility model is to overcome above-mentioned deficiency, and a kind of ammeter box safety apparatus is provided.

The utility model solves the technical scheme that its technical matters adopted: the ammeter box safety apparatus; Comprise three-phase voltage Acquisition Circuit, switching signal trigger circuit, single chip machine controlling circuit and wireless transceiver circuit, the signal of said three-phase voltage Acquisition Circuit and the collection of switching signal trigger circuit exports wireless transceiver circuit to through single chip machine controlling circuit control.

Said three-phase voltage Acquisition Circuit is gathered the 380V loop voltage that three-phase voltage constitutes by threephase potential transformer YB, through diode D1, D2, D3 rectification respectively, constitutes through capacitor C 1, C2 filtering again.

Said switching signal trigger circuit are connected to photoelectrical coupler U2 through resistance R 2 and constitute by being installed on normally closed switch LQ output terminal in the ammeter chamber door.

Said wireless transceiver circuit is made up of FDD-5 transmitter module IC1, JDD-5 receiver module IC2, external LED 1 and the loudspeaker Y of JDD-5 receiver module IC2.

Through adopting above-mentioned technical scheme, the beneficial effect of the utility model is: this device is through three-phase voltage testing circuit acquired signal, when the signal of gathering takes place when unusual; Send alerting signal through wireless module, orientation, wireless receiving module alarm host machine display alarm address, and when the user opens ammeter box privately; Send alerting signal; Give the operator on duty of appointment, through the monitoring of operator on duty to each control point, monitor set voltage and anti-electricity-theft in one.

Description of drawings

Fig. 1 is the frame assumption diagram of the utility model;

Fig. 2 is the circuit theory diagrams of the utility model.

Embodiment

Like Fig. 1, shown in Figure 2; The ammeter box safety apparatus of the utility model; Comprise three-phase voltage Acquisition Circuit 1, switching signal trigger circuit 2, single chip machine controlling circuit 3 and wireless transceiver circuit 4, the signal that said three-phase voltage Acquisition Circuit 1 and switching signal trigger circuit 2 are gathered exports wireless transceiver circuit 4 to through single chip machine controlling circuit 3 controls.

Said three-phase voltage Acquisition Circuit 1 is gathered the 380V loop voltage that three-phase voltage constitutes by threephase potential transformer YB, through diode D1, D2, D3 rectification respectively, constitutes through capacitor C 1, C2 filtering again.Adjustment adjustable resistance W1 can change the signal output height that M is ordered, and this signal is input to the 38th pin of single-chip microcomputer U1 after capacitor C 2 filtering, and be high level this moment; When threephase potential transformer YB input voltage was 0V, the M current potential also was 0V, and this moment, the 38th pin of single-chip microcomputer U1 also was a low level; Explain to have this moment and take place to have a power failure or power fail that this signal is judged through the computing of single-chip microcomputer U1 internal processes, by the 5th pin output high level signal of single-chip microcomputer U1; Through resistance R 4 current limlitings, make triode VT1 conducting, be input to the 2nd pin of FDD-5 transmitter module IC1; And to deliver to its 3rd pin CP be the modulation signal input end, and the high-frequency signal of emission is modulated.Antenna TX promptly launches modulated frequency electromagnetic waves to JDD-5 receiver module IC2; The 4th pin CPA audio signal output end of JDD-5 receiver module IC2 directly drives common electrical dynamic formula loudspeaker Y and sends chimes of doom; Its 2nd pin data output end output high level makes LED 1 get electroluminescence simultaneously; Expression receives the data-signal of extension set, reaches the purpose of remote monitoring.

Said switching signal trigger circuit 2 are connected to photoelectrical coupler U2 through resistance R 2 and constitute by being installed on normally closed switch LQ output terminal in the ammeter chamber door, and when chamber door is forced when opening, normally closed switch LQ becomes normal battle by normally closed point; Photoelectrical coupler U2 becomes not on-state by conducting state, and the 1st pin of photoelectrical coupler U2 is a high level by low transition, and the possibility of positive opening box door operation stealing is described this moment; The 5th pin output high level signal by single-chip microcomputer U1; Through resistance R 4 current limlitings, make triode VT1 conducting, be input to the 2nd pin of FDD-5 transmitter module IC1; And to deliver to its 3rd pin CP be the modulation signal input end, and the high-frequency signal of emission is modulated.Antenna TX promptly launches modulated frequency electromagnetic waves to JDD-5 receiver module IC2; The 4th pin CPA audio signal output end of JDD-5 receiver module IC2 directly drives common electrical dynamic formula loudspeaker Y and sends chimes of doom; Its 2nd pin data output end output high level makes LED 1 get electroluminescence simultaneously; Expression receives the data-signal of extension set, reaches the purpose of remote monitoring.

An above-described preferred embodiment that is merely the utility model can not limit the scope that this practicality is implemented, and every equalization of being done according to the utility model claim changes and decorates, and all should still belong in the scope that the utility model contains.

Claims

1. ammeter box safety apparatus; It is characterized in that: comprise three-phase voltage Acquisition Circuit (1), switching signal trigger circuit (2), single chip machine controlling circuit (3) and wireless transceiver circuit (4), the signal that said three-phase voltage Acquisition Circuit (1) and switching signal trigger circuit (2) are gathered exports wireless transceiver circuit (4) to through single chip machine controlling circuit (3) control.

2. ammeter box safety apparatus according to claim 1; It is characterized in that: said three-phase voltage Acquisition Circuit (1) is gathered the 380V loop voltage that three-phase voltage constitutes by threephase potential transformer YB; Through diode D1, D2, D3 rectification respectively, constitute through capacitor C 1, C2 filtering again.

3. ammeter box safety apparatus according to claim 1 is characterized in that: said switching signal trigger circuit (2) are connected to photoelectrical coupler U2 through resistance R 2 and constitute by being installed on normally closed switch LQ output terminal in the ammeter chamber door.

4. ammeter box safety apparatus according to claim 1 is characterized in that: said wireless transceiver circuit (4) is made up of FDD-5 transmitter module IC1, JDD-5 receiver module IC2, external LED 1 and the loudspeaker Y of JDD-5 receiver module IC2.