CN2262243Y

CN2262243Y - Advanced charge controller for IC card electric meter

Info

Publication number: CN2262243Y
Application number: CN 96224928
Authority: CN
Inventors: 李良模; 徐植坚
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-11-15
Filing date: 1996-11-15
Publication date: 1997-09-10
Anticipated expiration: 2006-11-15

Abstract

The utility model relates to an advance charge controller for an IC card electric meter, composed of a central processor, a photoelectric sampling circuit, a digital display circuit, a data reading storage circuit, a remaining electricity alarm circuit, a power supply circuit and a power line switch circuit. The output terminals of the power supply circuit, the data reading storage circuit and the photoelectric sampling circuit are all connected with the input terminal of the central processor, and the output terminal of the central processor is connected with the input terminals of the digital display circuit, the remaining electricity alarm circuit and the power line switch circuit respectively. The utility model has the advantages of simple and reasonable structure, easy processing and fabrication, and no interference to electric networks; the utility model also has the advantage that the difficulty in fee charging in power systems can be effectively improved, and is suitable as equipment for electric fee charging in civil and industrial electric networks.

Description

IC-card watt-hour meter pre-payment controller

The utility model is a kind of IC-card watt-hour meter pre-payment controller.

Electric energy---as a kind of commodity, enter huge numbers of families, and in people's life, played the part of more and more important role.At present, domestic electric power system all adopts first electricity consumption, and the back is paid the mode of the electricity charge and sold electric energy, like this, causes a large amount of electricity charge to regain, and causes the tremendous economic loss to electric power system; Simultaneously, because this marketing method, pay for huge production capital earlier first by electric power system, and then regain from the user successively, make power supply department bear huge financial burden, be unfavorable for the benign cycle of electric system management state, cause power supply shortage, even be difficult to keep the situation of normal power supply.

It is a kind of simple in structure that the purpose of this utility model is to provide, dependable performance, the IC-card watt-hour meter pre-payment controller that automaticity is high.

The utility model is to adopt following proposal to realize: it is by center processor, photoelectric sampling circuit, digital display circuit, the data read memory circuit, surplus electric alarm circuit, power circuit, power switching circuitry circuit bank line, described power circuit, data read memory circuit, the output of photoelectricity sampling warning circuit all connects the input of center processor, and the output of center processor connects the input end of digital display circuit, surplus electric alarm circuit, power switching circuitry circuit respectively.

The utility model is simple and reasonable, and processing and manufacturing is easy, and is easy to use, highly sensitive, can effectively improve electric system charge difficulty, noiseless to electrical network, is suitable for using in civilian and industrial electrical network, makes electric fees charging equipment.

Concrete structure of the present utility model describes in detail below in conjunction with accompanying drawing:

Accompanying drawing 1 is the utility model electricity reason block scheme

Accompanying drawing 2 is this practical full mold electrical schematic diagram

See accompanying

drawing

1,2, the utility model is by center processor 1, photoelectric sampling circuit 2, digital display circuit 3, data read memory circuit 4, surplus electric alarm circuit 5, power circuit 6, power switching circuitry circuit 7 is formed, described power circuit 6, photoelectric sampling circuit 2, the output of data read memory circuit 4 all connects the input end of center processor 1, the output of center processor 1 connects digital display circuit 3 respectively, surplus electric alarm circuit 5, the input end of power switching circuitry circuit 7, and center processor 1 is by integrated line piece U1, capacitor C 1, C2, C3, C4, crystal oscillator C2, knob S1 forms, photoelectric sampling circuit 2 is by light emitting diode L1, phototriode N1, resistance R 1, R2, R3 forms, digital display circuit 3 is made up of LCD panel LCD, data read memory circuit 4 is by integrated package U3, U2, switch S 2, capacitor C 10, C11, resistance R 4, R12, R13, R14 forms, surplus electric alarm circuit 5 is made up of piezoelectric buzzer BJ1, power circuit 6 is by integrated package U4, rectifier bridge BR1, protective tube F1, resistance R 9, R10, R11, voltage dependent resistor (VDR) RV, capacitor C 6, C7, C8, C9 forms, power switching circuitry circuit 7 is by bidirectional triode thyristor TR1, photoelectricity is isolated trigger TR2, resistance R 5, R6, R7, R8, capacitor C 5 is formed.

In the utility model, the integrated package model is respectively:

U1--MC6805L1 U2--93C46 U3--88SC102

U4--78L05 TR2--MOC3061

Principle of work of the present utility model is summarized as follows:

During use the utility model is installed wiring near the leading-out terminal of watt-hour meter junction box.Before the electricity consumption, the user must buy the IC-card that has write power consumption and management data to power supply department, and IC-card is inserted in the Card Reader circuit, and center processor will at first be checked the password of IC-card, and through four nuclear sign indicating numbers, password is all wrong, and IC-card will be destroyed voluntarily; If password meets, center processor is read into the content in the IC-card among the power failure data-carrier store U2, and makes the IC-card return-to-zero, at this moment, crystal digital coding on the display LCD flicker shows the data of reading in from IC-card, successful to show Card Reader, and can check data for the user, then, center processor will be controlled photoelectricity insulation triggering circuit TR2, make power switching circuitry TR1 connecting subscribers participating power circuit, at this moment, the user can begin electricity consumption.During user power utilization, photoelectric sampler is transformed into pulse with the revolution that user's watt-hour meter rotates, send center processor U1 to handle the power consumption of recording user, and the real-time last electric weight of explicit user, remaining during to a setting value when electric weight, single chip microcomputer starts surplus electric alarms based on pattern recognition BJ and sends to ring and carry out surplus electric alarm, when surplus electricity exhausts, center processor will be controlled power switching circuitry TR1, TR2 and disconnect, and cut off subscriber's line circuit, thereby stop power supply.

In sum, the utility model is simple in structure, and processing and manufacturing is easy, stable performance, highly sensitive, can effectively improve electric system toll administration level, reduce charge labour intensity, reduce the national economy loss, be suitable for using in civilian and industrial electrical network, as the electric fees charging servicing unit.

Claims

IC-card watt-hour meter pre-payment controller, comprise center processor 1, photoelectric sampling circuit 2, digital display circuit 3, data read memory circuit 4, surplus electric alarm circuit 5, power circuit 6, power switching circuitry circuit 7, it is characterized in that power circuit 6, photoelectric sampling circuit 2, the output of data read memory circuit 4 all connects the input end of center processor 1, the output of center processor 1 connects digital display circuit 3 respectively, surplus electric alarm circuit 5, the input end of power switching circuitry circuit 7, and center processor 1 is by integrated line piece U1, capacitor C 1, C2, C3, C4, crystal oscillator C2, knob S1 forms, photoelectric sampling circuit 2 is by light emitting diode L1, phototriode N1, resistance R 1, R2, R3 forms, digital display circuit 3 is made up of LCD panel LCD, data read memory circuit 4 is by integrated package U3, U2, switch S 2, capacitor C 10, C11, resistance R 4, R12, R13, R14 forms, surplus electric alarm circuit 5 is made up of piezoelectric buzzer BJ1, power circuit 6 is by integrated package U4, rectifier bridge BR1, protective tube F1, resistance R 9, R10, R11, voltage dependent resistor (VDR) RV, capacitor C 6, C7, C8, C9 forms, power switching circuitry circuit 7 is by bidirectional triode thyristor TR1, photoelectricity is isolated trigger TR2, resistance R 5, R6, R7, R8, capacitor C 5 is formed.