CN203133254U

CN203133254U - GSM power supply detection circuit

Info

Publication number: CN203133254U
Application number: CN 201320085780
Authority: CN
Inventors: 黄冬来
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-02-21
Filing date: 2013-02-21
Publication date: 2013-08-14
Anticipated expiration: 2023-02-21

Abstract

The utility model relates to a GSM power supply detection circuit, comprising a phase voltage collection circuit and a one-chip microcomputer control circuit. Output signals of the phase voltage collection circuit are respectively transmitted to an overvoltage comparison circuit and an under-voltage comparison circuit; output signals of the overvoltage comparison circuit the under-voltage comparison circuit are transmitted to the one-chip microcomputer control circuit; output signals of the one-chip microcomputer control circuit are transmitted to a GSM module alarm circuit; when voltage is abnormal, the one-chip microcomputer control circuit performs identification and determination and emits alarm information to professional through a GSM module to safely monitor electrical network operation states.

Description

A kind of GSM power sense circuit

Technical field

The utility model relates to electronic circuit field, particularly be a kind of GSM power sense circuit.

Background technology

Under the single phase power supply situation, because power supply administration's transformer output overvoltage is too high or disconnected zero situation of chamber main line distribution system, to cause the too high or under-voltage of phase voltage, finally cause power devices overvoltage/undervoltage fault, household electrical appliance such as refrigerator or air conditioner are under-voltage because of phase voltage, can make compressor can not rotate the back and produce fault or catch fire, and overtension can produce electric equipment and damages, even the breaking out of fire accident.

The utility model content

The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of GSM power sense circuit is provided.

The technical scheme that its technical matters that solves the utility model adopts is: the GSM power sense circuit, comprise phase voltage Acquisition Circuit and single chip machine controlling circuit, the output signal of described phase voltage Acquisition Circuit is transferred to superpotential comparator circuit and under-voltage comparator circuit respectively, the output signal of described superpotential comparator circuit and under-voltage comparator circuit is sent to single chip machine controlling circuit, and the output signal of described single chip machine controlling circuit sends to the gsm module warning circuit.

The transformer BT that the phase voltage loop output terminal that described phase voltage Acquisition Circuit is made of live wire L, zero line N connects gathers signal, and the output signal of described transformer BT sends to voltage stabilizing integration module IC5 through rectification, filtering circuit.

By adopting above-mentioned technical scheme, the beneficial effects of the utility model are: when voltage takes place when unusual, the utility model sends warning message by gsm module to the professional, the state of security monitoring operation of power networks after single chip machine controlling circuit identification is judged.

Description of drawings

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

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

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

As shown in Figure 1 and Figure 2, GSM power sense circuit of the present utility model, comprise phase voltage Acquisition Circuit 1 and single chip machine controlling circuit 2, the output signal of described phase voltage Acquisition Circuit 1 is transferred to superpotential comparator circuit 11 and under-voltage comparator circuit 12 respectively, the output signal of described superpotential comparator circuit 11 and under-voltage comparator circuit 12 is sent to single chip machine controlling circuit 2, and the output signal of described single chip machine controlling circuit 2 sends to gsm module warning circuit 21.

Described phase voltage Acquisition Circuit 1 is by live wire L, the transformer BT that the phase voltage loop output terminal that zero line N constitutes connects gathers signal, by live wire L, zero line N constitutes the phase voltage loop, normal value is at the AC220V state, the secondary output AC voltage of transformer BT is about 8V, through diode D1-D4 bridge rectifier, capacitor C 1, after the C2 filtering, this DC voltage divides two-way to be input to the 1st pin of voltage stabilizing integration module IC5 respectively, handle through its inner voltage stabilizing that back output 5V power supply is supplied with local circuit and for comparer IC2 provides the reference comparison voltages value, another road is input to the in-phase end of comparer IC2 through potentiometer W2 adjustment.As live wire L, zero line N constitutes the phase voltage loop, urban network electricity pressure value is when AC280V, the secondary output AC voltage of transformer BT is about 11V, export through rectification, potentiometer W2 is input to the 3rd of comparer IC2 after adjusting, 6 pin, with the 2nd of comparer IC2,5 pin carry out voltage ratio, the 5th of comparer IC2,6,7 pin and peripheral cell are formed the superpotential comparator circuit, when the 6th pin voltage of comparer IC2 during greater than the 5th pin voltage reference value, the upset of comparer IC2 internal circuit, the 7th pin output high level signal by comparer IC2, be input to the 35th pin I/O end of single-chip microcomputer IC3 through resistance R 3 current limlitings, after single-chip microcomputer IC3 internal processes is judged, connect to form the data information transfer circuit by gsm wireless module I C4 and single-chip microcomputer IC3, after the identification of single-chip microcomputer IC3 internal processor, send the driving data signal by single-chip microcomputer IC3, after the decoding of gsm wireless module I C4 internal circuit, through the base station network transmission, to designated person's phone number transmission electric voltage exception warning message.

As live wire L, zero line N constitutes the phase voltage loop, urban network electricity pressure value is when AC150V, the secondary output AC voltage of transformer BT is about 5V, export through rectification, potentiometer W2 is input to the 3rd of comparer IC2 after adjusting, 6 pin, with the 2nd of comparer IC2,5 pin carry out voltage ratio, comparer IC2 the 3rd, 2,1 pin and peripheral cell are formed the under-voltage comparator circuit, when the 2nd pin voltage of comparer I C2 during greater than its 3rd pin voltage reference value, the upset of comparer IC2 internal comparator circuit, the 1st pin output high level signal by comparer IC2, be input to single-chip microcomputer IC3 the 25th pin I/O end through resistance R 2 current limlitings, after single-chip microcomputer IC3 internal processes is judged, send the driving data signal by single-chip microcomputer IC3, after the decoding of gsm wireless module I C4 internal circuit, through the base station network transmission, to designated person's phone number transmission electric voltage exception warning message, security monitoring operation of power networks state.

Above-described only is a preferred embodiment of the present utility model, can not limit the scope that the utility model is implemented, and every equalization of doing according to the utility model claim changes and decorates, and all should still belong in the scope that the utility model contains.

Claims

1. GSM power sense circuit, it is characterized in that: comprise phase voltage Acquisition Circuit (1) and single chip machine controlling circuit (2), the output signal of described phase voltage Acquisition Circuit (1) is transferred to superpotential comparator circuit (11) and under-voltage comparator circuit (12) respectively, the output signal of described superpotential comparator circuit (11) and under-voltage comparator circuit (12) is sent to single chip machine controlling circuit (2), and the output signal of described single chip machine controlling circuit (2) sends to gsm module warning circuit (21).

2. GSM power sense circuit according to claim 1, it is characterized in that: the transformer BT that the phase voltage loop output terminal that described phase voltage Acquisition Circuit (1) is made of live wire L, zero line N connects gathers signal, and the output signal of described transformer BT sends to voltage stabilizing integration module IC5 through rectification, filtering circuit.