CN202009221U

CN202009221U - Novel electric leakage security controlling means

Info

Publication number: CN202009221U
Application number: CN2011201387691U
Authority: CN
Inventors: 傅哲龙; 黄永福
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-05
Filing date: 2011-05-05
Publication date: 2011-10-12
Anticipated expiration: 2021-05-05

Abstract

The utility model relates to the security control field, especially a novel electric leakage security controlling means, comprising a residual current detection circuit, an amplification circuit, an A\D data conversion circuit, a single chip microprocessor control circuit, an alarm circuit, a wireless transceiver circuit and a display circuit, wherein the output signal of the residual current detection circuit is input to the A\D data conversion circuit through the amplification circuit, connected to the single chip microprocessor control circuit via the output of the A\D data conversion circuit, output to the alarm circuit, the wireless transceiver circuit and the display circuit via the single chip microprocessor control circuit, thus achieving the goal of integration of alarming, displaying and wireless alarming.

Description

A kind of new pattern creepage security personnel control device

Technical field

The utility model relates to security personnel control field, particularly be a kind of new pattern creepage security personnel control device.

Background technology

Sell earth leakage protective device in the market and mainly act on two kinds of action power dump and warning circuits, but can't realize wireless remote alarming function and protection, show that function such as leakage current is in one.

The utility model content

The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of new pattern creepage security personnel control device is provided.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of new pattern creepage security personnel control device, comprise residual current testing circuit, amplifying circuit, A D data converting circuit, single chip machine controlling circuit, warning circuit, wireless transceiver circuit and display circuit, the output signal of described residual current testing circuit after amplifying circuit amplifies, be input to A the D data converting circuit, by A D data converting circuit output connect single chip machine controlling circuit, export warning circuit, wireless transceiver circuit and display circuit to by single chip machine controlling circuit control.

Described residual current testing circuit adopts residual current sensor acquisition electric leakage signal.

Described wireless transceiver circuit is accepted module by FDD-5 transmitter module and JDD-5 and is constituted.

Described display circuit is a LCD display.

By adopting above-mentioned technical scheme, the beneficial effects of the utility model are: this device adopts the residual current testing circuit to gather the line electrical leakage signal, by Single-chip Controlling output, reach warning and demonstration, radio alarming function in the purpose of one by warning circuit, wireless transceiver circuit and display circuit.

Description of drawings

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

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

Embodiment

As shown in Figure 1, a kind of new pattern creepage security personnel control device of the present utility model, comprise residual current testing circuit 1, amplifying circuit 11, A D data converting circuit 12, single chip machine controlling circuit 2, warning circuit 21, wireless transceiver circuit 22 and display circuit 23, the output signal of described residual current testing circuit 1 after amplifying circuit 11 amplifies, be input to A D data converting circuit 12, by A D data converting circuit 12 output connect single chip machine controlling circuits 2, export warning circuit 21 to by single chip machine controlling circuit 2 controls, wireless transceiver circuit 22 and display circuit 23.

As shown in Figure 2, by residual current transducer LN output series resistance R1, R2 forms residual current testing circuit 1, three-phase firewire and zero line are passed residual current testing circuit LN simultaneously, when the three-phase firewire root has earth fault, LN level of residual current testing circuit produces induction weak voltage signal, this signal is input to operational amplifier IC1, after operational amplifier IC1 internal arithmetic is amplified, through diode D1 rectification, be input to the 2nd pin of A/D converter IC2 after capacitor C 2 filtering, through the 5th of A/D converter IC2,6, the 25th of 7 pin and single-chip microcomputer U1,32,34 pin are formed voltage data transition of communications circuit, read the current data information of A/D converter IC2 through single-chip microcomputer U1, when the live wire earth leakage current big more, the Q1 point current potential of operational amplifier IC1 output is also just high more, after judging super also set point, divides single-chip microcomputer IC1 internal processes three tunnel outputs, the first via by the high level of the 37th pin of single-chip microcomputer U1 output through resistance R 6 current limlitings, make triode Q1 conducting, loud speaker BDD sends " ticking ... " alarm sound, prompting has a leak current fault; The second tunnel output is by the I/O mouth output drive signal of single-chip microcomputer U1 internal processes control output end the 1st pin, the high potential signal of output makes triode VT1 conducting through resistance R 8, be input to FDD-5 transmitter module IC4 the 2nd pin, and deliver to the CP modulation signal input end of the 3rd pin of FDD-5 transmitter module IC4, high-frequency signal to emission is modulated, antenna TX promptly launches modulated frequency electromagnetic waves to JDD-5 receiver module IC5, the 4th pin CPA audio signal output end of JDD-5 receiver module IC5 directly drives common electrical dynamic formula loud speaker Y sounding, its data output end the 2nd pin output high level makes LED 1 get electroluminescence simultaneously, and expression receives the alarm signal of extension set; Third Road output is formed the indicated data communication circuit by the 27th, 12,7,8 pin of single-chip microcomputer U1 and the 3rd, 4,5,6 pin of LCD display IC3, read the current variable condition of signal of Q1 end by single-chip microcomputer U1, after A/D converter IC2 data transaction, be input to single-chip microcomputer U1, send control signal through single-chip microcomputer U1 conversion, drive leakage current value and related electric information that LCD display IC3 shows current circuit or equipment, reach warning and demonstration, radio alarming function.

Above-described only is a preferred embodiment of the present 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. new pattern creepage security personnel control device, it is characterized in that: comprise residual current testing circuit (1), amplifying circuit (11), A D data converting circuit (12), single chip machine controlling circuit (2), warning circuit (21), wireless transceiver circuit (22) and display circuit (23), the output signal of described residual current testing circuit (1) after amplifying circuit (11) amplifies, be input to A D data converting circuit (12), by A D data converting circuit (12) output connect single chip machine controlling circuit (2), export warning circuit (21) to by single chip machine controlling circuit (2) control, wireless transceiver circuit (22) and display circuit (23).

2. a kind of new pattern creepage security personnel control device according to claim 1, it is characterized in that: described residual current testing circuit (1) adopts residual current sensor acquisition electric leakage signal.

3. a kind of new pattern creepage security personnel control device according to claim 1, it is characterized in that: described wireless transceiver circuit (22) is accepted module by FDD-5 transmitter module and JDD-5 and is constituted.

4. a kind of new pattern creepage security personnel control device according to claim 1, it is characterized in that: described display circuit (23) is LCD display.