CN103164902A - Multi-meter reading way single phase charge-controlling intelligent electric energy meter - Google Patents
Multi-meter reading way single phase charge-controlling intelligent electric energy meter Download PDFInfo
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- CN103164902A CN103164902A CN 201110406446 CN201110406446A CN103164902A CN 103164902 A CN103164902 A CN 103164902A CN 201110406446 CN201110406446 CN 201110406446 CN 201110406446 A CN201110406446 A CN 201110406446A CN 103164902 A CN103164902 A CN 103164902A
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Abstract
Provided is a multi-meter reading way single phase charge-controlling intelligent electric energy meter which comprises a microprocessor, an electric energy meter measurement unit, a voltage sampling unit, a current sampling unit and a power circuit. A signal output end of the voltage sampling unit and a signal output end of the current sampling unit are connected with a signal input end of the electric energy meter measurement unit, a data output end of the electric energy meter measurement unit is connected with a data input end of eth microprocessor, an output end of the microprocessor is connected with a light-emitting dioxide (LED) display module, an input end of the microprocessor is connected with an integrated circuit (IC) clamping interface circuit. The microprocessor is further connected with a clock circuit, a memorizer, an infrared communication circuit, a general packet radio service (GPRS) communication circuit and a carrier communication circuit. A power output end of the power circuit is respectively connected with a power input end of the electric energy meter measurement unit, a power input end of the microprocessor and a power input end of a serial communication circuit. The multi-meter reading way single phase charge-controlling intelligent electric energy meter can provide multiple meter reading ways and can be simple and convenient.
Description
Technical field
The technical program belongs to electric power metering device, specifically a kind of many meter reading methods single-phase charge-controlled intelligent electric meter.
Background technology
In prior art, due to the limitation of use occasion, such as city, rural area or factory and enterprise etc., meter reading personnel's workload is very large, and, also be not easy to control.In addition because the situation of application scenario is different, stable, the reliability of electric energy meter there is higher requirement.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the technical program proposes a kind of many single-phase kilowatts, and is specific as follows:
A kind of many meter reading methods single-phase charge-controlled intelligent electric meter comprises microprocessor, electric energy meter metering units, voltage sample unit, current sampling unit and power circuit; Be connected signal output part and connect the signal input part of electric energy meter metering units in described voltage sample unit with current sampling unit; The data output end of electric energy meter metering units connects the data input pin of microprocessor;
The output terminal of described microprocessor is connected with the LCD display module; The input end of described microprocessor is connected with the IC-card interface circuit; Microprocessor also is connected with clock circuit, storer, infrared communication circuit, GPRS telecommunication circuit and carrier communication circuit;
The power output end of power circuit connects respectively the power input of electric energy meter metering units, the power input of microprocessor and the power input of serial communication circuit.
Described electric energy meter metering units is electric energy meter computation chip ADE7755.
Described voltage sample unit is resistor voltage divider network.
Described current sampling unit adopts copper-manganese resistance as sampling resistor.
The IC-card interface circuit is used for supporting the CPU card.In prior art, the CPU card is mainly finance level IC-card.The single-chip microcomputer that is equivalent to a specific type take CPU card (CPU card and SAM module are as encryption medium) as the master CPU card embedded chip, inner except with controller, storer, outside time sequence control logic etc., also with algorithm unit and operating system, memory capacity is large, and processing power is strong, the characteristics such as information storage security.
The principle of this electric energy meter is, tested alternating voltage and electric current are through delivering to special-purpose electric energy computation chip through after a series of digital processings after sampling with high precision, convert the pulse duration frequency signal that is directly proportional to active power to and give microprocessor, it is cumulative that microprocessor carries out timesharing with pulse signal according to the period rate, obtain total electric weight and each rate electric weight, result is saved in data memory.Microprocessor is completed simultaneously and is shown and the function of carrying out message exchange with outside (infrared communication, 485 serial communications, carrier communication, GPRS communicate by letter), can realize multiple meter reading method; The advantages such as that this table has is highly reliable, high precision, long-life.It is wide that its adapts to voltage range, and complete machine need not be adjusted after dispatching from the factory.
Description of drawings
Fig. 1 is the theory diagram of the technical program.
Embodiment
The technical program is further illustrated as follows below in conjunction with accompanying drawing and embodiment:
With reference to figure 1, a kind of many meter reading methods single-phase charge-controlled intelligent electric meter comprises microprocessor, electric energy meter metering units, voltage sample unit, current sampling unit and power circuit; Be connected signal output part and connect the signal input part of electric energy meter metering units in described voltage sample unit with current sampling unit; The data output end of electric energy meter metering units connects the data input pin of microprocessor;
The output terminal of described microprocessor is connected with the LCD display module; The input end of described microprocessor is connected with the IC-card interface circuit; Microprocessor also is connected with clock circuit, storer, infrared communication circuit, GPRS telecommunication circuit and carrier communication circuit;
The power input of described power circuit connects tested circuit, power circuit can adopt Switching Power Supply, and the power output end of power circuit connects respectively the power input of electric energy meter metering units, the power input of microprocessor and the power input of serial communication circuit.
Described electric energy meter metering units is electric energy meter computation chip ADE7755.
Described voltage sample unit is resistor voltage divider network.
Described current sampling unit adopts copper-manganese resistance as sampling resistor.
In this example, described IC-card interface circuit adopts SLE4442IC card module for reading and writing.
Carrier communication circuit and GPSS telecommunication circuit can be matched the matured product of different manufacturers, in this example preferably
KQ-100E type power line carrier, PLC module, this carrier communication module can directly and between microprocessor be passed through digital signal communication.
This electric energy meter can satisfy multiple meter reading method by existing ripe circuit module circuit and microprocessor-based control/calculation function.
Claims (4)
1. meter reading method single-phase charge-controlled intelligent electric meter more than a kind is characterized in that comprising microprocessor, electric energy meter metering units, voltage sample unit, current sampling unit and power circuit; Be connected signal output part and connect the signal input part of electric energy meter metering units in described voltage sample unit with current sampling unit; The data output end of electric energy meter metering units connects the data input pin of microprocessor;
The output terminal of described microprocessor is connected with the LCD display module; The input end of described microprocessor is connected with the IC-card interface circuit; Microprocessor also is connected with clock circuit, storer, infrared communication circuit, GPRS telecommunication circuit and carrier communication circuit;
The power output end of power circuit connects respectively the power input of electric energy meter metering units, the power input of microprocessor and the power input of serial communication circuit.
2. many meter reading methods single-phase charge-controlled intelligent electric meter according to claim 1 is characterized in that described electric energy meter metering units is electric energy meter computation chip ADE7755.
3. many meter reading methods single-phase charge-controlled intelligent electric meter according to claim 1 is characterized in that described voltage sample unit is resistor voltage divider network.
4. many meter reading methods single-phase charge-controlled intelligent electric meter according to claim 1 is characterized in that described current sampling unit adopts copper-manganese resistance as sampling resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110406446 CN103164902A (en) | 2011-12-09 | 2011-12-09 | Multi-meter reading way single phase charge-controlling intelligent electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110406446 CN103164902A (en) | 2011-12-09 | 2011-12-09 | Multi-meter reading way single phase charge-controlling intelligent electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103164902A true CN103164902A (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110406446 Pending CN103164902A (en) | 2011-12-09 | 2011-12-09 | Multi-meter reading way single phase charge-controlling intelligent electric energy meter |
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| CN (1) | CN103164902A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706976A (en) * | 2016-12-09 | 2017-05-24 | 杭州西力智能科技股份有限公司 | Intelligent electric energy meter |
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2011
- 2011-12-09 CN CN 201110406446 patent/CN103164902A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706976A (en) * | 2016-12-09 | 2017-05-24 | 杭州西力智能科技股份有限公司 | Intelligent electric energy meter |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130619 |