CN101876694B - Configuration software based function detection device of multifunctional electric energy meter and method thereof - Google Patents
Configuration software based function detection device of multifunctional electric energy meter and method thereof Download PDFInfo
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- CN101876694B CN101876694B CN200910272896A CN200910272896A CN101876694B CN 101876694 B CN101876694 B CN 101876694B CN 200910272896 A CN200910272896 A CN 200910272896A CN 200910272896 A CN200910272896 A CN 200910272896A CN 101876694 B CN101876694 B CN 101876694B
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- 238000012360 testing method Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
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Abstract
The invention discloses a configuration software based function detection device of a multifunctional electric energy meter and a method thereof, relating to a detection device of the multifunctional electric energy meter. The device comprises a PC (Personal Computer), a programme-controlled three-phase power source, an electric energy meter, a serial port expander and a physical layer converter. The method comprises the steps of basic parameter inputting, functional detection project configuration, protocol consistent detection, electric energy meter parameter storage, function detection based on the configuration, electric energy meter restoration and data saving. The invention has the advantages that: by combining the operation conditions of the electric energy meter with a communication protocol together to assess the functions of the electric energy meter, the automation of the function detection can be realized and the detection effect for detecting the functions of the electric energy meter can be improved; the function detection projects can be configured and modified autonomously; the communication protocol can be configured, modified and supplemented autonomously; and the function detection of a plurality of electric energy meters can be simultaneously carried out and the detection efficiency of the electric energy meters can be improved.
Description
Technical field
The present invention relates to a kind of multifunctional electric energy meter pick-up unit, relate in particular to a kind of function detection device of multifunctional electric energy meter and method thereof based on configuration software.
Background technology
Multifunctional electric energy meter (intelligent electric meter) is meant by measuring unit and data processing unit etc. to be formed, and except that measuring meritorious/reactive energy, also has two or more functions such as timesharing, measurement requirement, and the electric energy meter of ability demonstration, storage and output data.It is mainly used in critical point stoichiometric point important in the electric system and electric power big customer's charge accounting.Along with the develop rapidly of electronic technology and the construction of intelligent grid; The function expansion of multifunctional electric energy meter is maked rapid progress; Except basic electric energy metrical function; Possess also generally that requirement measurement, rate and period, measurement data are stored, freezed, logout, many functions such as communicate by letter, can replace multiple instrument such as decompression timer, electric energy quality monitor on the function.
Because the multifunctional electric energy table function is complicated, before launching each item function, must carry out the parameter setting to multifunctional electric energy meter through specific communication protocol.Therefore, before coming into operation, manufacturing enterprise will carry out the parameter setting to electric energy meter according to the concrete applicable cases of different regions, and at the electric energy meter run duration, power supply enterprise also need change partial parameters.The function of electric energy meter and communication protocol are relatively independent two parts that are closely connected again, and the multi-functional of electric energy meter need carry out the parameter setting through communication protocol, move correct but parameter is provided with the function that correctly can not guarantee electric energy meter.Therefore the Function detection to electric energy meter must combine communication protocol to examine together.
In recent years along with electric company deepens constantly what the management of power use required, examine the electric energy meter of equipment by force as main metering, its function is also constantly abundant and perfect thereupon.Can work safely and steadly at the scene in order to guarantee electric energy meter; Stopping low-quality goods influences the fair and just metering of electric energy; Country and industry have issued that a series of standard comes the function and the performance index of standard electric energy meter, and testing agency has also made the testing of much making great efforts to improve electric energy meter; Electric energy meter type approval test project has reached thirties at most at present, comprises many index examinations such as product insulating property, mechanical property, electromagnetic compatibility.In numerous examination projects, the Function detection of the multi-functional part of electric energy meter but never obtains enough attention of power consumer and testing agency.Present all detection device of electric energy meter; Only be that the simple individual event communication protocol of the sum of errors of electric energy meter part is detected; For example write table address, write the time etc., and do not combine communication protocol to detect the apparatus and method of other functions such as subsequent use period switching, decompression defluidization record, freezing data of electric energy meter together.Owing to lack pick-up unit towards the electric energy meter Function detection; Manual detection takes time and effort; Can't satisfy the need of work that the various functions of electric energy meter is carried out full test; Can not in time find the hidden danger of quality of electric energy meter product, directly cause the part electric energy meter product discovery feature that is in operation not meet the phenomenon of code requirement, cause serious economy loss and bad social influence to power supply enterprise.
On the other hand; Because the continuous variation of technical progress and demand; The function of electric energy meter and communication protocols parliament bring in constant renewal in and change; Conventional detection system software section will be realized a certain task, all is to realize that through writing fixing program this method can not adapt to the variation of the function and the communication protocol of electric energy meter in time.
Summary of the invention
To the problem and shortage that above-mentioned prior art means exist, the purpose of this invention is to provide a kind of simple in structure, easy to operate, be convenient to detect function detection device of multifunctional electric energy meter and the method thereof of upgrading and using manpower and material resources sparingly based on configuration software.
The objective of the invention is to realize like this:
One, function detection device of multifunctional electric energy meter (abbreviation device)
Like Fig. 1, this device comprises PC, program control three phase power source, electric energy meter, serial extended unit and physical layer converter;
Program control three phase power source is made up of signal source, voltage power amplifier and current power amplifier;
Physical layer converter comprises radio switch, carrier converter and RS-485 converter:
The annexation of this device is:
PC links to each other through RS-232 interface with signal source; The signal source output terminal connects the input end of voltage power amplifier and current power amplifier respectively; The output terminal of voltage power amplifier is through the parallel voltage circuit that is connected to or many electric energy meters of pressure-wire; The output terminal of current power amplifier is through the electric current line current return to or many electric energy meters connected in series; PC links to each other with serial extended unit, is used to expand the serial ports quantity of PC; The serial ports that serial extended unit is expanded out respectively with physical layer converter in radio switch, carrier converter and RS-485 converter link to each other; Radio switch is connected through wireless channel with the electric energy meter that possesses radio communication function; Carrier converter is connected through pressure-wire with the electric energy meter that possesses the carrier communication function; The RS-485 converter is connected through the RS-485 bus with the electric energy meter that possesses the RS-485 communication function.
The principle of work of this device is:
This device is given electric energy meter through the program control three phase power source output voltage of detection software control in the PC, current signal; Amplitude, phase place and the phase sequence of program control three phase power source output voltage, current signal all can be regulated, thereby just can simulate operating mode and the various unusual electricity condition of using that electric energy meter moves at the scene in the laboratory; PC is connected with physical layer converter final sum electric energy meter through serial extended unit, has set up detection software and the communication channel of electric energy meter in the PC, makes the detection software can read and be provided with the various data and the parameter of electric energy meter; When detection software control electric energy meter operates in operating mode, can detect the communication protocol accordance of electric energy meter, can after the electric energy meter parameter is set, detect the function of electric energy meter and whether move correctly; Detect the software control electric energy meter and operate in unusually when using electricity condition, whether the event recording function that can detect electric energy meter is correct.
The present invention has the following advantages and good effect:
1. this device has been realized the Function detection robotization with the combine function of examination electric energy meter of electric energy meter operating condition and communication protocol, has improved the detection effect to the electric energy meter Function detection;
2. the Function detection project can dispose and revise voluntarily, need not to revise source program, has improved the practicality of system;
3. communication protocol can dispose voluntarily, revises and augment, and supports simultaneously to need not to revise source program, has improved the dirigibility of system;
4. this device can carry out the Function detection of polylith electric energy meter simultaneously, has improved the detection efficiency of electric energy meter.
Description of drawings
Fig. 1 is this apparatus structure block diagram;
Fig. 2 is the basic flow sheet that this device PC detects software.
Wherein:
The 10-PC machine;
The program control three phase power source of 20-,
The 21-signal source,
22-voltage power amplifier,
The 23-current power amplifier;
The 30-electric energy meter,
31,32 ... 3n-first, second ... The n electric energy meter;
The 40-serial extended unit;
The 50-physical layer converter,
The 51-radio switch,
The 52-carrier converter,
The 53-RS-485 converter;
The V-pressure-wire;
I-electric current line;
The Z-485 bus.
Embodiment
One, device
1, overall
Like Fig. 1, this device comprises PC 10, program control three phase power source 20, electric energy meter to be detected 30, serial extended unit 40 and physical layer converter 50;
Program control three phase power source 20 is made up of signal source 21, voltage power amplifier 22 and current power amplifier 23;
The annexation of this device is:
PC 10 and signal source 21 link to each other through RS-232 interface; Signal source 21 output terminals connect the input end of voltage power amplifier 22 and current power amplifier 23 respectively; The output terminal of voltage power amplifier 22 is through the parallel voltage circuit that is connected to one or many electric energy meter to be detected 30 of pressure-wire V; The output terminal of current power amplifier 23 is through the electric current line I current return to one or many electric energy meter to be detected 30 connected in series; PC 10 links to each other with serial extended unit 40, is used to expand the serial ports quantity of PC 10; The serial ports that serial extended unit 40 expansion is come out respectively with physical layer converter 50 in radio switch 51, carrier converter 52 and RS-485 converter 53 link to each other; Radio switch 51 and the electric energy meter that possesses radio communication function 30 are connected through wireless channel; Carrier converter 52 is connected through pressure-wire V with the electric energy meter that possesses the carrier communication function 30; RS-485 converter 53 is connected through RS-485 bus Z with the electric energy meter that possesses the RS-485 communication function 30.
The basic technical indicator of program control three phase power source 20 is following:
1. voltage range: 3 * 57.7V/220V, 3 * 100V/380V
2. current range: 3 * 0.1A～25A
3. electric current, voltage-regulation scope: 0～120% ratings
4. output frequency: 45Hz～65Hz
5. phase shift range: 0～360 °
2, functional block
1) PC 10
PC detects the software literary composition introduction of seeing after.
2) program control three phase power source 20
Program control three phase power source 20 is made up of signal source 21, voltage power amplifier 22 and current power amplifier 23, and signal source 21 is connected with current power amplifier 23 with voltage power amplifier 22 respectively; Standard listing product is arranged.
Program control three phase power source 20 possesses the RS-232 communication interface, can export the sine wave signal of low distortion, can realize the independent adjustment of free voltage, electric current, phase place.
Program control three phase power source 20 can be split type, also can be integral structure.
(1) signal source 21
Signal source 21 is a kind of derived digital signals commonly used, can directly export three-phase voltage and three-phase current, realizes the output of the independent adjustment harmonic of free voltage, electric current, phase place through the RS-232 communication interface.
(2) the voltage power amplifier 22
(3) current power amplifier 23
3) electric energy meter 30
Each electric energy meter all has standard listing product.
4) serial extended unit 40
Serial extended unit 40 is in order to solve ordinary PC 10 serial ports lazy weights, the standard listing product of expansion PC 10 serial ports quantity.This device adopts the C320Turbo type multi-serial-port card of Moxa company.
5) physical layer converter 50
(1) radio switch 51
Common have a GPRS modulator-demodular unit, and the listing product of standard is arranged.
(2) carrier converter 52
Select to use according to electric energy meter 30 concrete carrier types; The DEMO3201 type converter of the common PRO16 type converter that Qingdao company of Neusoft is arranged and Beijing lucky star journey company dawn.
(3) the RS-485 converter 53
RS-485 converter 53 is a kind of equipment that the RS-232 communication interface is converted to the RS-485 communication interface.Commonly use the SN75LBC184 chip or the U.S. MAX3221E of the MAXIM company chip manufacturing of TIX.Standard listing product is arranged.
Two, method
The present invention provides PC to detect the function detecting method that is based on configuration software of The software adopted, comprises the following steps:
1. begin 0, basic parameter input 1 mainly is basic parameters such as voltage, current specification and communication pattern of confirming electric energy meter 30 to be detected;
2. the Function detection project configuration 2, mainly are the Function detection projects of configuration electric energy meter 30, and every kind of Function detection project is configured (permutation and combination) by assembly module, realize the automatic detection to electric energy meter 30 various functions;
Described assembly module comprises 7 modules: the source control module, and parameter is provided with module, and data read module compares judge module (numeric class, character type, logic class, artificial judgment), time delay module, data recovery module and information module;
3. protocol conformance detects 3, mainly is whether the communication protocol of confirming electric energy meter 30 to be detected meets the requirements, and is convenient to follow-up Function detection and carries out smoothly;
4. the storage of electric energy meter parameter 4, mainly are to preserve electric energy meter 30 some important parameters before detection, so that the initial parameter of recovering electrical energy table 30 after the detection completion;
5. based on the Function detection 5 of configuration, the Function detection project that 2. pre-sets according to step detects and provides the detection conclusion to the various functions of electric energy meter 30;
6. the electric energy meter parameter recovers 6, and the 4. middle stored parameters of step is returned to electric energy meter 30;
7. data preserve 7, and the detailed process and the conclusion that detect are saved in database, are convenient to searching and managing;
PC detects the communication protocol of software use and takes from the protocol database that software carries, and protocol database can be expanded in program easily, need not to revise master routine.
7 modules of said step in 2.:
The function of a, source control module is that voltage, the current signal of program control three phase power source 20 outputs of control given electric energy meter 30, simulates electric energy meter 30 and produces various records and the required operating condition of incident.
The function that b, parameter are provided with module is to write necessary operational factor for electric energy meter 30 according to the function of electric energy meter 30, makes electric energy meter 30 possess particular functionality.
The function of c, data read module is to read all kinds of parameters of electric energy meter 30 through serial extended unit 40 and physical layer converter 50, is used for data comparison or data and recovers.
Whether the function of d, comparison judge module is with reading or observed data content and electric energy meter 30 estimates that the data that produce compare, qualified with the function of confirming electric energy meter 30;
It specifically is divided into the comparison of totally 4 types of data of numeric class, character type, logic class and artificial judgment again.
The function of e, time delay module is the time lengthening control of carrying out in order to cooperate the source control module to produce various records and the required operating condition of incident.
The function of f, data recovery module is that the parameter of reading in the data read module is reset in the electric energy meter 30.
The function of g, information module is for guaranteeing that testing process carries out the auxiliary reference information that provides to the testing staff smoothly.
Claims (1)
1. function detection device of multifunctional electric energy meter based on configuration software is characterized in that:
This device comprises PC (10), program control three phase power source (20), electric energy meter (30), serial extended unit (40) and physical layer converter (50);
Program control three phase power source (20) is made up of signal source (21), voltage power amplifier (22) and current power amplifier (23);
Physical layer converter (50) comprises radio switch (51), carrier converter (52) and RS-485 converter (53):
The annexation of this device is:
PC (10) links to each other through RS-232 interface with signal source (21); Signal source (21) output terminal connects the input end of voltage power amplifier (22) and the input end of current power amplifier (23) respectively; The output terminal of voltage power amplifier (22) is through the parallel voltage circuit that is connected to or many electric energy meters to be detected (30) of pressure-wire (V); The output terminal of current power amplifier (23) is through electric current line (I) current return to or many electric energy meters to be detected (30) connected in series; PC (10) links to each other with serial extended unit (40), is used to expand the serial ports quantity of PC (10); The serial ports that serial extended unit (40) expansion is come out respectively with physical layer converter (50) in radio switch (51), carrier converter (52) and RS-485 converter (53) link to each other; Radio switch (51) is connected through wireless channel with the electric energy meter that possesses radio communication function (30); Carrier converter (52) is connected through pressure-wire (V) with the electric energy meter that possesses the carrier communication function (30); RS-485 converter (53) is connected through RS-485 bus (Z) with the electric energy meter that possesses the RS-485 communication function (30).
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| CN111239675B (en) * | 2020-02-24 | 2022-04-12 | 云南电网有限责任公司电力科学研究院 | Multi-meter parallel traversal test method and system for multi-core module electric energy meter minute freezing |
| CN112698262B (en) * | 2020-11-27 | 2022-09-13 | 国网湖北省电力有限公司营销服务中心(计量中心) | Automatic detection device and detection method for digital electric energy centralized metering device |
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Effective date of registration: 20121026 Address after: 430077, 361 East Main Street, Wuchang District, Hubei, Wuhan Patentee after: Hubei Electric Power Research Institute of Power Company Patentee after: State Grid Corporation of China Address before: 430077, 361 East Main Street, Wuchang District, Hubei, Wuhan Patentee before: Hubei Prov. Power Test Inst. |