CN2156513Y

CN2156513Y - Compound fee rate time section controller

Info

Publication number: CN2156513Y
Application number: CN 93238790
Authority: CN
Inventors: 何荣钦
Original assignee: SHUDA ELECTRIC POWER AND ELECTRONIC INSTRUMENT AND METER FACTORY SICHUAN
Current assignee: SHUDA ELECTRIC POWER AND ELECTRONIC INSTRUMENT AND METER FACTORY SICHUAN
Priority date: 1993-05-31
Filing date: 1993-05-31
Publication date: 1994-02-16
Anticipated expiration: 2003-05-31

Abstract

The utility model provides a compound fee rate time section controller, comprising an electrical source, a photoelectric sensor joint circuit, an MPU which is connected with the photoelectric sensor joint circuit, a calendar clock, an asynchronous communication joint circuit, a display joint circuit and a digital display. The utility model is characterized in that the MPU is a 16Cxx MPU CMOS chip, and the calendar clock adopts a calendar clock CMOS chip. The compound fee rate time section controller has small volume, and thus, the compound fee rate time section controller can be arranged in the common induction typed watt-hour meter in order to alter the common induction type watt-hour meter into a compound fee rate watt-hour meter. The utility model can work reliably, after electricity is cut, the data can be chronically and reliably kept, and the real time clock can reliably and continuously run in order to accurately calculate degree.

Description

Compound fee rate time section controller

Thereby the utility model relates to a kind of and the supporting use of induction type pulse electricity meter and make it to become the multiple tariff period controller that multi-rate meter is realized time sharing meter.

At present the domestic existing multiple tariff period controller of China by power supply, accept the photoelectric sensor interface circuit of watt-hour meter aluminium dish rotation information, with photoelectric sensor interface circuit microprocessor linked, the calendar clock that is connected with microprocessor, asynchronous communication interface circuit can be connected with the meter reader on the watt-hour meter respectively, sort controller and the supporting use of induction type pulse electricity meter can become multi-rate meter, thereby the realization time sharing meter, but this multiple tariff period controller time spent also have the following disadvantages:

1. the microprocessor in the sort controller generally adopts function to cross strong and chip and quantity that volume is bigger are more, as 8031 microprocessor chips and memory chip, so volume is all bigger, so in the existing watt-hour meter of can not directly packing into, controller must be made separate unit and is attached on the watt-hour meter outward, or with former Watt hour meter shell lengthening or increase and hold this unit, so not only factory makes inconvenience, cost increases, and the user to transform or change former watt-hour meter be that multi-rate meter is also very inconvenient, difficulty, sometimes narrow and small owing to adorning the space of showing switch cubicle, even can't reequip or change, also be not easy to the maintenance and the verification of watt-hour meter in addition.

2. owing to adopted more in the controller or performance chip improperly, make reliability decrease, when electric system generation disturbance, can not reliably working after interference such as voltage fluctuation or watt-hour meter power down are sent a telegram in reply again; Having a power failure the back calendar clock can not reliably working, can not preserve data reliably, might walk unrest, and influence is the meter degree accurately.

3. most existing multi-rate meters only provide power consumption and the total electricity consumption of peak phase and paddy phase, and flat phase electric weight then deducts peak, the value of paddy phase by total electric weight and calculates and obtain, so in fact can't judge and examine the correctness of each phase meter degree according to reading value.

In view of above reason, the purpose of this utility model be for provide a kind of can be little with the supporting volume of watt-hour meter, reliable operation, the meter degree is tariff period controller again accurately.

The utility model is the improvement on existing multiple tariff period controller basis, it is characterized in that microprocessor be 16C * * microprocessor chip, its A2, B0, B4 port are connected with calendar clock, and B0, B1, B2, B3, B4, B5, B6 port are connected (referring to Fig. 1, Fig. 2) with display interface circuit.

The back-up source that the diode D1 that contains direct supply and be attached thereto is arranged in the above-mentioned controller, clock chip IC 2 is arranged in the calendar clock, 5 pin among the clock chip IC2,6 pin, 7 pin respectively with 16C * * A2, B0, B4 port in the microprocessor chip be connected, the negative pole of diode D1 in 8 pin and the back-up source is connected (referring to Fig. 2), after AC power disappears, back-up source provides the operation of the real-time clock in the calendar clock chip, and the various data that will write down and set are preserved.

Above-mentioned 16C * * microprocessor chip can adopt 16C54 microprocessor chip or 16C55 microprocessor chip or 16C56 microprocessor chip or 16C57 microprocessor chip.

Photoelectric sensor is converted to electric pulse with the rotation of watt-hour meter aluminium dish and sends into microprocessor, which kind of period the real-time clock that microprocessor is provided by calendar clock chip IC2 is defined as, and aluminium dish turn signal is changed to the secondary electric weight charges in the meter degree register cells different in the calendar clock chip, (as 6 seconds) at regular intervals, microprocessor carries out communication by asynchronous communication interface circuit and meter reader, send the once information of this device recording, comprise the ammeter table number in it, time, the dividing time-steps table, the current record data of three period meter degree registers, dividing time-steps table and the instruction of meter degree register value is set, microprocessor drives charactron by display interface circuit, the circulation demonstration time reaches the respectively record value and the current period of degree of counting register, when AC power disappears, provide the operation of the real-time clock in the calendar clock chip by back-up source, and the various data of keeping records and setting.

Compare with existing multiple tariff period controller, the utlity model has following advantage:

Since adopted 16C * * microprocessor chip, volume is little, thus can pack into existing just a large amount of make produce and the common induction meters of operation in, shell and inside all need not to do any change and just transform it as multi-rate meter easily.

2. electric system has disturbance and when disturbing, or after power down resets again, can resume work reliably, even system voltage has than great fluctuation process, its operate as normal is also unaffected.

3. adopt back-up source to power to clock chip, after the power failure, data can be preserved stably in a long term and real-time clock can turn round continuously reliably.

4. circulation demonstrates peak, flat, each phase of paddy and total electric weight, and provide when operation segment mark, the user can (whether peak, flat, paddy phase reading sum equal sum according to indicated value, the time segment mark whether with the period conformed at that time), whether the work of judging this device at any time is normal, whether indicated value is accurately credible, and total number of degrees can do directly comparison with the indicated electric degree value of mechanical character wheel formula register, should be in full accord.

Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing:

Fig. 1 is the utility model circuit block diagram

Fig. 2 is the utility model circuit diagram.

With reference to figure 1, Fig. 2, photoelectric sensor interface circuit 1 is arranged, microprocessor 2, calendar clock 3, back-up source 4, display interface circuit 5, nixie display 6, asynchronous communication interface circuit 7, power supply 8 in the utility model.

Photoelectric sensor interface circuit 1 with the rotation of watt-hour meter aluminium dish 9 be converted to electric pulse send into 16C56 microprocessor chip in the microprocessor 2 (microprocessor chip can adopt 16C57 or 16C54 or 16C55 etc. or 16C * * the series microprocessor chip), calendar clock chip in the calendar clock 3 has passed through 5,6, the A2 of 7 pin and the little process chip of 16C56, B0, the B4 port links to each other, real-time clock is offered microprocessor 2, which kind of period the real-time clock that is provided by calendar clock chip is defined as, and aluminium dish turn signal is scaled the secondary electric weight charges in the meter degree register cells different in the calendar clock chip, at regular intervals, (as 6 seconds), microprocessor 2 is by the A0 of 16C56 microprocessor chip, A1 port and asynchronous communication interface circuit 7 and meter reader 10(are referring to Fig. 1) carry out communication, send the signal of this device recording, microprocessor 2 by with the B0 of little process chip 16C56, B1, B2, B3, B4, B5, the charactron circulation demonstration time in the display interface circuit 5 driving nixie displaies that the B6 port joins and the record value and the current period of each register.

When AC power 8 disappears, provide the operation of the real-time clock in the calendar clock chip by the direct current of back-up source 44,8 pin by diode D1 and calendar clock chip to calendar clock 3, and keeping records and setting and various data.

Claims

1, multiple tariff period controller comprises power supply; Accept the photoelectric sensor interface circuit of watt-hour meter aluminium dish rotation information, with photoelectric sensor interface circuit microprocessor linked, the calendar clock that is connected with microprocessor respectively, the asynchronous communication interface circuit, display interface circuit, the digital display tube that is connected with display interface circuit, the asynchronous communication interface circuit can be connected with the meter reader in the watt-hour meter, it is characterized in that described microprocessor is the 16CXX microprocessor chip, A2 in the 16CXX microprocessor chip, B0, the B4 port is connected with calendar clock, B0, B1, B2, B3, B4, B5, the B6 port is connected with display interface circuit, A0, the A1 port is connected with the asynchronous communication interface circuit.

2, multiple tariff period controller as claimed in claim 1, it is characterized in that having in the described controller back-up source of the diode D1 that contains direct supply and be connected in series with it, calendar clock chip IC2 is arranged in the described calendar clock, in the calendar clock chip 5,6,7 pin respectively with 16C * * A2, the B0 of microprocessor chip, B4 port be connected, the negative pole of the diode D1 in 8 pin and the back-up source is connected.

3, multiple tariff period controller as claimed in claim 1, it is characterized in that described 16C * * microprocessor chip can adopt 16C54 microprocessor chip or 16C55 microprocessor chip or 16C56 microprocessor chip or 16C57 microprocessor chip.