CN2639894Y - Multiple charge rate ammeter compound output terminal control device - Google Patents

Abstract

The utility model discloses a control device for a multi charge rate electric meter composite output port, which is characterized in that a single chip is in line connection with a clock circuit, the single chip is in line connection with a test circuit, the single chip is in line connection with an far infrared communication port, the single chip is in line connection with an photoelectric coupler, and the photoelectric coupler is in line connection an output terminal. By adopting the innovative technique, the utility model realizes the different charge rates are used in the different time on the multi charge rate electric meter without changing the original electric meter box, lowers the unnecessary economic loss greatly and saves fund around 0.3 billion RMB.

Description

The compound output port control device of a kind of many rates ammeter

Technical field:

The utility model relates to the technical field of electric control appliance, specifically a kind of compound output port control device of many rates ammeter.

Background technology:

Because electric energy can't be stored this singularity, cause the generating set utilization factor of power industry lower, and the trend of continuous step-down arranged, cause the benefit of whole industry can't reach maximization, address the above problem and just must set up rational electricity price mechanism, this core wherein is exactly by formulating the electricity consumption policy of time-of-use tariffs, to implement tou power price, except framing a price policy, government guides enterprise, resident's electricity consumption behavior, also need high-quality, measurement instrument---many charge electric meters of high reliability and cheap metering tou power price, need many charge electric meters to have different kinds of parameters output (1.RS485 communication interface in force, 2. programming allows/forbids port, 3. electric pulse output port, 4. reference clock pulse output end mouth in showing) realize various function to reach, these problems will realize not difficult originally, but since the year end 80 of last century Shanghai carried out in " Every household has an ammeter " transformation project of resident, the table case that usefulness is installed has been done comprehensive transformation, these table casees meet request for utilization at present fully, because of not implementing tou power price when fashion, thereby table case size is less, can't satisfy many charge electric meters the different kinds of parameters output port is arranged, need and to address this problem, a kind of is that the table case of transforming is originally all scrapped, and economic loss is very big like this.About 150 yuan of the unit price of each table case, full Shanghai have more than 200 ten thousand table casees approximately, need fund more than 3 hundred million, lose very big.

Summary of the invention:

The purpose of this utility model is to provide a kind of many rates ammeter compound output port control device, and it can overcome the some shortcomings of prior art.

To achieve these goals, the technical solution of the utility model is: the compound output port control device of a kind of many rates ammeter, it mainly comprises shell, single-chip microcomputer in the enclosure is set, it is characterized in that: circuit is connected between single-chip microcomputer and the clock circuit, and circuit is connected between single-chip microcomputer and the metering circuit, and circuit is connected between single-chip microcomputer and the far infrared communication port, circuit is connected between single-chip microcomputer and the photoelectrical coupler, and circuit is connected between photoelectrical coupler and the lead-out terminal.

The utility model after the many charge electric meters of feasible employing carry out the charging of timesharing electric power, need not be changed the table case of original watt-hour meter by technological innovation, can greatly reduce unnecessary economic loss, about 3 about hundred million of saving fund.

Description of drawings:

Fig. 1 is the utility model structure principle chart

Fig. 2 is the utility model circuit theory diagrams

Embodiment:

The utility model will be further described below in conjunction with drawings and Examples.

The utility model mainly comprises shell, single-chip microcomputer 1 in the enclosure is set, it is characterized in that: circuit is connected between single-chip microcomputer 1 and the clock circuit 2, the exportable clock reference pulse signal of clock circuit, circuit is connected between single-chip microcomputer 1 and the metering circuit 3, the exportable electric pulse signal of metering circuit, circuit is connected between single-chip microcomputer 1 and the far infrared communication port 4, can the transmitted in both directions signal between single-chip microcomputer and the far infrared communication port, circuit is connected between single-chip microcomputer 1 and the photoelectrical coupler 5, and circuit is connected between photoelectrical coupler 5 and the lead-out terminal 6.

What the utility model adopted is existing PIC16C57 single-chip microcomputer, the data processing unit of the compound output port control device of many rates ammeter in the ordinary course of things, give tacit consent to metering circuit turn signal from the rotating element of induction meter of forming by two groups of infrared light sensing devices by the PIC16C57 single-chip microcomputer, in the RC1～RC3 pin input single-chip microcomputer of single-chip microcomputer, inner by single-chip microcomputer through after shaping and the modulating pulse width processing, according to many charge electric meters pulse constant, one side drive stepping motor duplex counter, reach metering electric weight purpose, export " electric pulse " signal by the I/O mouth (RB0) of " single-chip microcomputer " on the other hand, remove to control the photoelectrical coupler input end, when electric pulse of needs output, the RB0 output low level, make the light emitting diode conducting of the input end of photoelectrical coupler, the phototriode resistance of the output terminal of photoelectrical coupler reduces, make the electric pulse signal through after the photoelectric coupler isolation, by pulse output end on the terminal box electric pulse is exported, meanwhile, the clock circuit of being made up of RS5C372A and quartz oscillator sends the internal clocking of clock reference pulse (" second " signal pulse) as many charge electric meters with every 1s cycle, many charge electric meters are exactly with the foundation of this clock as time-shared charge, according to the period of setting, by " the putting down " in the control switching stepper motor duplex counter of single-chip microcomputer 1, " paddy " stepper motor, the rate electric weight that measures is recorded " putting down " respectively, in " paddy " register, when needs are measured the accuracy of many charge electric meters internal clocking, can give an order to single-chip microcomputer by the far infrared communication port by outside hand-hold programmer, the clock reference pulse signal that the clock circuit that single-chip microcomputer will originally be gathered this moment sends, by single-chip microcomputer internal switch circuit with I/O mouth (RB0), from original electric pulse conversion of signals is the clock reference pulse, thereby by after the photoelectric coupler isolation, by pulse output end on the terminal box clock reference pulse is exported, simultaneously, single-chip microcomputer inside picks up counting, do not receive the new clock reference pulse signal that sends after minute, then recover electric pulse output.Reach and be implemented on the same pair of lead-out terminal function of compound electric pulse and clock reference pulse.

Claims (1)

1, the compound output port control device of a kind of many rates ammeter, it mainly comprises shell, single-chip microcomputer in the enclosure is set, it is characterized in that: circuit is connected between single-chip microcomputer and the clock circuit, circuit is connected between single-chip microcomputer and the metering circuit, circuit is connected between single-chip microcomputer and the far infrared communication port, and circuit is connected between single-chip microcomputer and the photoelectrical coupler, and circuit is connected between photoelectrical coupler and the lead-out terminal.

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