CN202600132U

CN202600132U - Electric energy monitoring module of electric meter box

Info

Publication number: CN202600132U
Application number: CN 201220261134
Authority: CN
Inventors: 林禹鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-06-05
Filing date: 2012-06-05
Publication date: 2012-12-12
Anticipated expiration: 2022-06-05

Abstract

The utility model relates to a monitoring module, particularly to an electric energy monitoring module of an electric meter box. The module comprises a photocoupling circuit, a central processing unit (CPU), a calendar circuit, a storage circuit, wherein output signals of the photocoupling circuit are sent to the CPU through a pulse counting circuit, then output to an alarm circuit and a carrier signal phase locking circuit through control of the CPU, output signals of the carrier signal phase locking circuit are transmitted to a carrier signal decoding circuit through a frequency-selective amplifier, and the CPU is in a bi-directional data communication with the calendar circuit and sends output signals of the calendar circuit to the storage circuit. According to the monitoring module, the photocoupling circuit is adopted to read an electric energy meter, one mark is generated when the meter turns a circle, through the marks, collecting signals pass through the pulse circuit, are counted and stored by a single chip microcomputer, and transmitted to a carrier host through the carrier signals to display whether the electric energy meter is accurate, if the meter is not in a qualified state, a carrier alarm prompt is provided immediately.

Description

A kind of ammeter box energy monitor module

Technical field

The utility model relates to a kind of monitoring modular, particularly be a kind of ammeter box energy monitor module.

Background technology

Electric energy meter is installed on ammeter box, and electric energy meter is the establishing criteria of power supply administration's charge, if electrical energy meter calibration is wrong; Bring loss can for user and one side of power supply administration, traditional method of calibration is in the electric energy meter load power bulb to be installed, and passes through stopwatch again; Observe the electric energy meter number of turn-taking; Check through formula, the error that exists like this is very big, and the meter degree is inaccurate.

The utility model content

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

The utility model solves the technical scheme that its technical matters adopted: a kind of ammeter box energy monitor module; Comprise photoelectricity coupled circuit, central processing unit, warning circuit, perpetual calendar circuit, memory circuit and carrier signal phase lock circuitry; The output signal of said photoelectricity coupled circuit sends to central processing unit through the pulse counting circuit; Export warning circuit and carrier signal phase lock circuitry to by central processing unit control again; The output signal of said carrier signal phase lock circuitry is through frequency-selecting amplifier circuit transmission to carrier signal decoding scheme; Said central processing unit and perpetual calendar circuit bidirectional data communication, its output signal with the perpetual calendar circuit sends to memory circuit.

Said photoelectricity coupled circuit is by being made up of the reflective photoelectric sensor VD1, Q1 and the peripheral cell thereof that are installed on the electric energy meter aluminium dish.

Said pulse-scaling circuit adopts CD4093 impulse meter IC2.

Said perpetual calendar circuit adopts IS1302 clock chip IC4.

Said memory circuit adopts 24C02 reservoir IC3.

Said carrier signal phase lock circuitry is made up of LM567 tone decoder U1 and peripheral electric capacity 1C1, resistance 1R1, resistance 1R2 thereof.

Said frequency-selecting amplifier circuit is made up of elementary L1, electric capacity 1C2, the capacitor 1C3 of triode VT1, audio-frequency transformer (AFT) T, and sends data-signal through telephone wire to the carrier signal decoding scheme through secondary L2, the electric capacity 1C4 of audio-frequency transformer (AFT) T.

Said carrier signal decoding scheme is made up of the audio-frequency transformer (AFT) T1, LM567 ATD U2, triode VT2 and the LED that connect successively.

Through adopting above-mentioned technical scheme; The beneficial effect of the utility model is: this device adopts photoelectric coupled circuit to read electric energy meter and whenever turns around a mark is all arranged, through this mark, acquired signal through pulsing circuit by single-chip microcomputer counting, storage; Send carrier wave main frame machine to through carrier signal again and show whether this electric energy meter is correct; If be in defective state, the carrier wave alarm reaches the remote online purpose of monitoring in real time immediately.

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

As shown in Figure 1; A kind of ammeter box energy monitor module of the utility model; Comprise photoelectricity coupled circuit 1, central processing unit 2, warning circuit 3, perpetual calendar circuit 4, memory circuit 5 and carrier signal phase lock circuitry 6; The output signal of said photoelectricity coupled circuit 1 sends to central processing unit 2 through pulse counting circuit 11; Export warning circuit 3 and carrier signal phase lock circuitry 6 to by central processing unit 2 controls again; The output signal of said carrier signal phase lock circuitry 6 transfers to carrier signal decoding scheme 8 through frequency-selecting amplifier circuit 7, said central processing unit 2 and perpetual calendar circuit 4 bidirectional data communications, and its output signal with perpetual calendar circuit 4 sends to memory circuit 5.

As shown in Figure 2, reflective photoelectric sensor VD1, Q1 are installed on the electric energy meter aluminium dish, when the aluminium dish whenever turns around; Photoelectricity coupling light impinges upon the surface of aluminium dish, and the aluminium dish of ammeter whenever turns around just has a unfilled corner, with such calculating; The photoelectricity coupling just has a pulse output, and this pulse output signals is input to the 21st pin I/O end of single-chip microcomputer IC1 after CD4093 impulse meter IC2 amplification and shaping, as the counting signal acquisition source; Read the pulse signal of CD4093 impulse meter IC2 by single-chip microcomputer IC1, and carry out the inside counting, after judging by single-chip microcomputer IC1; Send control signal; First via output is by the 2nd pin output low level of single-chip microcomputer IC1, through resistance R 4 current limlitings, promote loudspeaker YD send " ticking ... " Prompting sound; The expression electric energy meter turns around; The time data telecommunication circuit of being made up of the 5th, 6,7 pin of the 26th, 13,5 pin of single-chip microcomputer IC1 and IS1302 clock chip IC4 is judged that through single-chip microcomputer IC1 internal processes the current time of reading IS1302 clock chip IC4 is deposited in the database of 24C02 reservoir IC3, and is transferred to the carrier wave main frame through carrier signal.The multivibrator that another route LM567 tone decoder U1 and peripheral electric capacity 1C1, resistance 1R1, resistance 1R2 thereof constitute is formed phase lock circuitry; Its oscillation frequency is by the parameter determining of electric capacity 1C1, resistance 1R1, and carrier frequency is adjusted in the 150-300KHZ scope.Elementary L1, electric capacity 1C2, capacitor 1C3 by triode VT1, audio-frequency transformer (AFT) T constitute the frequency-selecting amplifier circuit; The 25th pin output high level signal by single-chip microcomputer IC1; Make LM567 tone decoder U1 obtain working power; LM567 tone decoder U1 starts working, and is coupled on local telephone network speaking wire or the AC network AC220V power lead and is sent by secondary L2, the electric capacity 1C4 of audio-frequency transformer (AFT) T, sends data-signal to the carrier wave main frame.

Said carrier signal decoding scheme is made up of the audio-frequency transformer (AFT) T1, LM567 ATD U2, triode VT2, the LED that connect successively; The time constant of resistance 2R1, electric capacity 2C5 network has determined the voltage controlled oscillator of LM567 ATD U2; When the carrier wave extension set when main frame sends 150-300KHZ carrier wave command signal; Be coupled to the secondary L3 of audio-frequency transformer (AFT) T through electric capacity 2C1, audio-frequency transformer (AFT) T1, its secondary L3, electric capacity 2C2, electric capacity 2C3 form a carrier wave frequency selection network.Signal after the frequency-selecting is coupled to the 3rd pin signal input part of LM567 ATD U2 through electric capacity 2C4; After LM567 ATD U2 decoding,, make triode VT2 conducting by its 8th pin output terminal output low level; LED is lighted; Receive the carrier data signal of extension set, explained that electric energy meter has occurred unusually, reached the remote online purpose of monitoring in real time.

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 energy monitor module; It is characterized in that: comprise photoelectricity coupled circuit (1), central processing unit (2), warning circuit (3), perpetual calendar circuit (4), memory circuit (5) and carrier signal phase lock circuitry (6); The output signal of said photoelectricity coupled circuit (1) sends to central processing unit (2) through pulse counting circuit (11); Export warning circuit (3) and carrier signal phase lock circuitry (6) to by central processing unit (2) control again; The output signal of said carrier signal phase lock circuitry (6) transfers to carrier signal decoding scheme (8) through frequency-selecting amplifier circuit (7); Said central processing unit (2) and perpetual calendar circuit (4) bidirectional data communication, its output signal with perpetual calendar circuit (4) sends to memory circuit (5).

2. a kind of ammeter box energy monitor module according to claim 1 is characterized in that: said photoelectricity coupled circuit (1) is by being made up of the reflective photoelectric sensor VD1, Q1 and the peripheral cell thereof that are installed on the electric energy meter aluminium dish.

3. a kind of ammeter box energy monitor module according to claim 1 is characterized in that: said pulse-scaling circuit (11) adopts CD4093 impulse meter IC2.

4. a kind of ammeter box energy monitor module according to claim 1 is characterized in that: said perpetual calendar circuit (4) adopts IS1302 clock chip IC4.

5. a kind of ammeter box energy monitor module according to claim 1 is characterized in that: said memory circuit (5) adopts 24C02 reservoir IC3.

6. a kind of ammeter box energy monitor module according to claim 1 is characterized in that: said carrier signal phase lock circuitry (6) is made up of LM567 tone decoder U1 and peripheral electric capacity 1C1, resistance 1R1, resistance 1R2 thereof.

7. a kind of ammeter box energy monitor module according to claim 1; It is characterized in that: said frequency-selecting amplifier circuit (7) is made up of elementary L1, electric capacity 1C2, the capacitor 1C3 of triode VT1, audio-frequency transformer (AFT) T, and sends data-signal through telephone wire to carrier signal decoding scheme (8) through secondary L2, the electric capacity 1C4 of audio-frequency transformer (AFT) T.

8. according to claim 1 or 7 described a kind of ammeter box energy monitor modules, it is characterized in that: said carrier signal decoding scheme (8) is made up of the audio-frequency transformer (AFT) T1, LM567 ATD U2, triode VT2 and the LED that connect successively.