CN203101503U - Multifunctional electric energy meter based on high-precision metering - Google Patents
Multifunctional electric energy meter based on high-precision metering Download PDFInfo
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- CN203101503U CN203101503U CN 201320066074 CN201320066074U CN203101503U CN 203101503 U CN203101503 U CN 203101503U CN 201320066074 CN201320066074 CN 201320066074 CN 201320066074 U CN201320066074 U CN 201320066074U CN 203101503 U CN203101503 U CN 203101503U
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Abstract
The utility model discloses a multifunctional electric energy meter based on high-precision metering. The multifunctional electric energy meter based on high-precision metering comprises an MCU (Microprogrammed Control Unit) module, a power supply module, a voltage current sampling module, an electric energy metering module, a data storage module, an LCD (Liquid Crystal Display) module, an RS (Radio Station) 485 communication module and an infrared communication module, wherein the voltage current sampling module is used for sampling voltage and current; the other end of the voltage current sampling module is connected to the electric energy metering module; and the electric energy metering module, the power supply module, the LCD display module, the data storage module, the RS485 communication module and the infrared communication module are connected to the MCU module respectively. By adopting the technical scheme, the multifunctional electric energy meter based on high-precision metering has the advantages of achieving active 0.2S-level and reactive 1.0-level precision, being capable of realizing complex functions including time-sharing charging and the like of electric energy, and being high in reliability, good in generality and strong in anti-interference capability.
Description
Technical field
The utility model relates to a kind of electric energy meter, refers in particular to a kind of multifunctional electric energy meter based on high-precision measuring, belongs to the electric power meter technical field.
Background technology
Total errors of electric energy countings is excessive to be the key issue that electric energy metrical exists, it directly influences the correct calculation of every electric industry technical economical indexes such as electric industry generated energy, line loss, coal consumption, station service, delivery, power consumption, it is fair and rational that business is chargeed, and influences electric industry department and user's economic benefit.Along with power industry to big electrical network, high-power station, big unit, high voltage, high parameter, supermatic development and on national network in the future propelling, the electric power of conveying is increasing; Along with the commercial operation of power industry, be entity with the province, net factory separates, and between power plant and the electrical network, between the networking circuit, all will settle accounts by electric energy tariff, this problem is more and more outstanding.Making great efforts to improve the comprehensive accurately level of electric energy metrical, is an instant vital task.
Therefore, a intelligent electric energy meter with high-precision measuring of design is significant.
The utility model content
The utility model aims to provide a kind of multifunctional electric energy meter based on high-precision measuring, and it can realize the electric energy high-precision measuring, functions such as real time data and process record, time-sharing measurement, self diagnosis, and overall volume is little, metering precisely, and is easy to operate, for electric energy metrical brings very big facility.
It is as follows that the utility model solves the problems of the technologies described above the technical scheme of being taked: based on the multifunctional electric energy meter of high-precision measuring, comprise: the MCU module, power module, the electric current and voltage sampling module, the electric energy metrical module, data memory module, the LCD display module, the RS485 communication module, infrared communication module, wherein, described electric current and voltage sampling module is sampled to voltage and current, the other end is connected to described electric energy metrical module, and described electric energy metrical module, power module, the LCD display module, data memory module, the RS485 communication module, infrared communication module is connected to described MCU module respectively.
Further preferred construction is that described electric current and voltage sampling module comprises voltage branch circuit (Ua, Ub, Uc) summation current transformer (Ia, Ib, Ic).
Further preferred construction is, the computation chip in the described electric energy metrical module adopts the computation chip of commercially available IDT90E32 model.
Further preferred construction is, the microprocessor in the described MCU module adopts commercially available NEC processor.
Further preferred construction is also to comprise: clock module, LED light, button, battery, full decompression circuit, it is connected with described MCU module respectively.
Further preferred construction is, also comprises self-diagnostic circuit, and it is connected to described MCU module.
The utility model has been taked after the such scheme, has following advantage: precision can reach meritorious 0.2S level, idle 1.0 grades; Can realize the sophisticated functionss such as time-shared charge of electric energy; The reliability height, versatility is good, and antijamming capability is strong.
Other features and advantages of the utility model will be set forth in the following description, and, partly from instructions, become apparent, perhaps understand by implementing the utility model.The purpose of this utility model and other advantages can realize and obtain by specifically noted structure in the instructions of being write, claims and accompanying drawing.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described in detail, so that above-mentioned advantage of the present utility model is clearer and more definite.
Fig. 1 is the structural representation of the multifunctional electric energy meter based on high-precision measuring of the present utility model.
Embodiment
Below in conjunction with specific embodiment the utility model is described in detail.
The three-phase intelligent electric energy meter of the high-precision measuring of present embodiment, it can realize the electric energy high-precision measuring, functions such as real time data and process record, time-sharing measurement, self diagnosis, and overall volume is little, metering precisely, and is easy to operate, for electric energy metrical brings very big facility.
Specifically, it comprises: MCU module, electric current and voltage sampling module 1, power module 2, electric energy metrical module 3, LCD display module 4, clock module 5, data memory module 6, RS485 communication module 7, infrared communication module 8, wherein, wherein, described power module 2 provides normal power supply for monoblock table hardware, after described electric energy metrical module 3 is handled by the data of electric current and voltage sampling module 1 sampling, and be fed through the MCU module, perhaps, initiatively obtain the continuous data of electric energy metrical module 3 by the MCU module, finish the metering of electric flux.
Wherein, electric energy meter software is taked hierarchical design thought from bottom to top, is made up of hardware abstraction layer, operating system, storage system, application layer four parts, and specifically its software then is not elaborated.
Specifically, described electric current and voltage sampling module is sampled to voltage and current, the other end is connected to described electric energy metrical module, and described electric energy metrical module, power module, LCD display module, data memory module, RS485 communication module, infrared communication module are connected to described MCU module respectively.
And, preferred embodiment, described electric current and voltage sampling module comprises voltage branch circuit (Ua, Ub, Uc) summation current transformer (Ia, Ib, Ic).In addition, the computation chip in the described electric energy metrical module adopts the computation chip of commercially available IDT90E32 model.Microprocessor in the described MCU module adopts commercially available NEC processor.
In the preferred embodiment further, also comprise: clock module, LED light, button, battery, full decompression circuit, it is connected with described MCU module respectively, and, among this embodiment, also include self-diagnostic circuit, it is connected to described MCU module, wherein, above-mentioned self-diagnostic circuit can be chosen public design, does not describe in detail at this.
Specific descriptions to present embodiment are elaborated.
Wherein, after voltage, current signal are handled by electric current and voltage sampling module 1, be sent to electric energy metrical module 3, computation chip obtains voltage, the current sampling signal of each phase respectively from electric current and voltage sampling module 1, meritorious and reactive energy to electrical network consumption measures, simultaneously continuous data is stored in the register of self, waits for reading of microprocessor.After voltage signal is handled by power module 2 simultaneously, for all chips in showing provide operating voltage.
Wherein the LCD display module is used to show current and historical electric quantity data, current and historical requirement data, data such as date, time, voltage, electric current, power, power factor; LED is used for the ammeter abnormal alarm, comprises the phase failure, negative phase sequence, defluidization, battery undervoltage warning etc.
Wherein, described clock module 5 is bases of multifunction electric meter time-division operation, for the clearing of the calculating electric weight of requirement, freezing data provides clock signal accurately on time, effectively regulate imbalance between power supply and demand by carrying out different rates in the different periods, regulate load curve, improve the unbalanced phenomenon of power consumption.
In addition, described data memory module 6 is used for the process data and the result data of this three-phase intelligent electric energy meter operation are carried out record, and its existing kind is a lot, does not repeat them here.
In addition, since electric energy meter do as a wholely generally to adopt asynchronous communication interface with communicating by letter of kilowatt meter reading-out system (write by hand device etc.).This table mainly is RS485 communication module 7 and infrared communication module 8.This electric energy meter has 3 independently physical communication mouths: the 1st tunnel 485 mouthful, the 2nd tunnel 485 mouthful, the mailing address of three communication ports of far infrared mouth (shared) are same address, two 485 mouthfuls of baud rates can change between 1200bps, 2400bps, 4800bps, 9600bps, and far infrared baud rate is fixed as 1200bps.
Microprocessor MCU is as the core of this three-phase intelligent electric energy meter, is used in conjunction with control program and other functional part the overall operation of this three-phase intelligent electric energy meter being carried out control and management.Its by with the register of communication with electric energy metrical module 3 of electric energy metrical module 3 in the meritorious and reactive energy data of storing read, and carry out respective handling, for example be stored in the data memory module 6, on LCD display module 5, shown etc.
Wherein, the existing kind of microprocessor MCU module is a lot, for example adopts the NEC processor.
This three-phase intelligent electric energy meter can also comprise self-diagnostic circuit and self-diagnostic program, and self-diagnostic program can be stored in the data memory module 6, thereby can carry out fault self-diagnosis to this three-phase intelligent electric energy meter.Get rid of operation hidden danger.
This three-phase intelligent electric energy meter is by the cooperation of hardware and software, can realize the height intelligence of equipment, not only can realize time-sharing measurement, demand metering, electric weight clearing, logout, zero clearing, electric weight freeze, can also information indicating and indication, self diagnosis, sound and light of alarm.
For existing electric energy meter, the utlity model has following advantage: 1, precision can reach meritorious 0.2S level, idle 1.0 grades; 2, can realize the sophisticated functionss such as time-shared charge of electric energy; 3, reliability height, versatility is good, and antijamming capability is strong.
Description in the foregoing description and the instructions has just illustrated principle of the present utility model, and under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall in the claimed scope.
It should be noted that at last: the above only is preferred embodiment of the present utility model, be not limited to the utility model, although the utility model is had been described in detail with reference to previous embodiment, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (6)
1. multifunctional electric energy meter based on high-precision measuring, it is characterized in that, comprise: MCU module, power module, electric current and voltage sampling module, electric energy metrical module, data memory module, LCD display module, RS485 communication module, infrared communication module, wherein, described electric current and voltage sampling module is sampled to voltage and current, the other end is connected to described electric energy metrical module, and described electric energy metrical module, power module, LCD display module, data memory module, RS485 communication module, infrared communication module are connected to described MCU module respectively.
2. the multifunctional electric energy meter based on high-precision measuring according to claim 1 is characterized in that, described electric current and voltage sampling module comprises voltage branch circuit (Ua, Ub, Uc) summation current transformer (Ia, Ib, Ic).
3. the multifunctional electric energy meter based on high-precision measuring according to claim 1 and 2 is characterized in that, the computation chip in the described electric energy metrical module adopts the computation chip of commercially available IDT90E32 model.
4. the multifunctional electric energy meter based on high-precision measuring according to claim 1 and 2 is characterized in that, the microprocessor in the described MCU module adopts commercially available NEC processor.
5. the multifunctional electric energy meter based on high-precision measuring according to claim 1 is characterized in that, also comprises: clock module, LED light, button, battery, full decompression circuit, it is connected with described MCU module respectively.
6. the multifunctional electric energy meter based on high-precision measuring according to claim 1 is characterized in that, also comprises self-diagnostic circuit, and it is connected to described MCU module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320066074 CN203101503U (en) | 2013-02-05 | 2013-02-05 | Multifunctional electric energy meter based on high-precision metering |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320066074 CN203101503U (en) | 2013-02-05 | 2013-02-05 | Multifunctional electric energy meter based on high-precision metering |
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| Publication Number | Publication Date |
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| CN203101503U true CN203101503U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320066074 Expired - Fee Related CN203101503U (en) | 2013-02-05 | 2013-02-05 | Multifunctional electric energy meter based on high-precision metering |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105788091A (en) * | 2016-05-24 | 2016-07-20 | 南宁市茂百科技有限公司 | Intelligent electric meter |
| CN106291088A (en) * | 2016-07-25 | 2017-01-04 | 广东工业大学 | A kind of intelligent electric meter |
| WO2020048238A1 (en) * | 2018-09-06 | 2020-03-12 | 威胜集团有限公司 | Modular design method for electric energy meter software |
-
2013
- 2013-02-05 CN CN 201320066074 patent/CN203101503U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105788091A (en) * | 2016-05-24 | 2016-07-20 | 南宁市茂百科技有限公司 | Intelligent electric meter |
| CN106291088A (en) * | 2016-07-25 | 2017-01-04 | 广东工业大学 | A kind of intelligent electric meter |
| WO2020048238A1 (en) * | 2018-09-06 | 2020-03-12 | 威胜集团有限公司 | Modular design method for electric energy meter software |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20180205 |