CN201716409U - On-site testing device for intelligent electric energy meter - Google Patents
On-site testing device for intelligent electric energy meter Download PDFInfo
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- CN201716409U CN201716409U CN201020259154XU CN201020259154U CN201716409U CN 201716409 U CN201716409 U CN 201716409U CN 201020259154X U CN201020259154X U CN 201020259154XU CN 201020259154 U CN201020259154 U CN 201020259154U CN 201716409 U CN201716409 U CN 201716409U
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Abstract
The utility model relates to an on-site testing device for an intelligent electric energy meter. The device comprises a microcontroller, a measurement unit, a communication interface unit, a memory, an input part, a current collecting channel, a voltage collecting channel, a clock module and a pulse input unit, wherein the microcontroller receives the control command from the input part and sends operating signals to the communication interface unit, the memory, a display part and the clock module; the measurement unit converts analog signals, which are subjected to filtering, amplifying, sampling and digital signal processing and transmitted from the current collecting channel and the voltage collecting channel, into measured data of digital signals, and supplies the measured data of the digital signals to the microcontroller; and the communication interface unit performs data communication with the electric energy meter and downloads files of customers from a server, sends the files of customers to the microcontroller, and uploads on-site testing data and records the data in the server. The device has the advantage that the device can test and diagnose whether all the functions of the intelligent electric energy meter perform normally on site in the circumstances that power is not cut off, on-site primary circuit and secondary circuit are not changed, and the state of a relay of the electric energy meter is not changed.
Description
Technical field
The utility model relates to a kind of pick-up unit, relates in particular to a kind of intelligent electric energy meter on-site detecting device.
Background technology
In recent years, China pays much attention to the intelligent grid construction.Premier Wen Jiabao emphasizes in the government work report in 2010, " develop low carbon technique energetically, promote high-efficiency energy-saving technology, develop actively new and renewable sources of energy, the construction of reinforcement intelligent grid.”
Intelligent grid will promote the realization of " interaction " electricity consumption---power grid enterprises and user interaction are regulated the peak of power consumption load.The power mode of this interaction requires electric energy meter to possess functions such as bidirectional measuring, rate control, communication, and therefore, intelligent electric energy meter arises at the historic moment.
In October, 2009, State Grid Corporation of China has formulated " intelligent electric energy meter technical manual ".Meet the electric energy meter 26 provinces all-round popularization in the national grid scope of " intelligent electric energy meter technical manual " at present.
Intelligent electric energy meter is development on the electronic electric energy meter basis, except original unidirectional function of measuring, has also expanded a lot of new functions.The function of the intelligent electric energy meter that " intelligent electric energy meter technical manual " requires comprises: the bidirectional measuring function, take the control function, and measure and monitoring function event recording function, the tariff period function, Presentation Function, warning function, freezing function, clocking capability, pulse output function.
Intelligent electric energy meter is as the product of newly developing, though passed through the DianKeYuan detection that national grid is arranged, all not through the test of on-the-spot operation, especially part producer is the economic pursuit interests, reduce the electric energy meter cost, brought a series of operation hidden danger for some field erected intelligent electric energy meters.Because intelligent electric energy meter has multinomial operation function, wherein one or multinomial function break down, if function of measuring is talked about normally, existing on-site detecting device can not carry out other Function detection and the fault diagnosis of intelligent electric energy meter as devices such as electric energy meter on-site calibrators.Some intelligent electric energy meters move in spite of illness, and the electricity metering data are inaccurate, the unnecessary economic loss of all bringing for electric company and power consumer.
The utility model content
Provide a kind of intelligent electric energy meter on-site detecting device in order to solve the problems of the technologies described above the utility model, purpose is that the intelligent electric energy meter of scene operation is done comprehensive Function detection, the on-the-spot electric energy meter of operation in spite of illness of in time finding makes electric energy meter really realize intellectuality, improves the utilization ratio of electric energy.
For reaching above-mentioned purpose the utility model intelligent electric energy meter on-site detecting device, constitute by following structure: microcontroller, receive the steering order of input part, to communications interface unit, storer, display part and clock module operation signal, and the raw measurement data of collection metering units, and the data that the measurement data of gathering and communications interface unit are received electric energy meter are compared, judge whether the electric energy meter measurement data is overproof, and comparing result is shown at display part; Metering units current acquisition passage and the next simulating signal of voltage acquisition channel transfer, converts the measurement data of digital signal to after process filtering, amplification, sampling and the digital signal processing, and offers microcontroller; Communications interface unit, carry out data communication with electric energy meter and from server the download user archives, and send microcontroller to, upload the data of on-the-spot test and record in the server; Storer, the files on each of customers that microcontroller is received and the field electric energy table detects data and record is stored, and the files on each of customers of storage is provided to microcontroller; Input part is to the microcontroller input control order; Display part shows the testing result of microcontroller and the parameter of importing to microcontroller that is provided with; Current acquisition passage and voltage acquisition passage are gathered the electric current and the voltage signal of electric energy meter; Clock module provides clock signal to microcontroller, and proofreads according to the clock signal that microcontroller provides; The pulse input block receives the pulse input signal of electric energy meter, and pulse input signal is sent to microcontroller.
The intelligent electric energy meter on-site detecting device also comprises following structure: the ESAM module: be used for the message exchange safety certification, to the data encryption and decryption to guarantee safety of data transmission and integrality; The IC-card module is sent to microcontroller with the information of CPU card, and according to the control of microcontroller to CPU card writing information; Alarm unit is reported to the police according to the alerting signal of microcontroller, and wherein alarm unit comprises warning LED lamp and hummer.
Described communications interface unit comprises electric energy meter communications interface unit and computing machine/printer communication interface portion, and the electric energy meter communications interface unit comprises infrared communication circuit and RS485 circuit.
Described electric energy meter communications interface unit also comprises the carrier communication circuit; Computing machine/printer communication interface portion comprises USB circuit, RS232 circuit or RS485 circuit.
Described input part comprises numerical key, directionkeys, ESC Escape, acknowledgement key, start key, printing key, shutter key and key backlight; Current acquisition passage and voltage acquisition passage are respectively current clamp and voltage clamp; The pulse input block is light pulse input detecting circuit or electric pulse input detecting circuit; Files on each of customers is the operational factor and the data of electric energy meter; The raw measurement data of metering units 6 is electric flux, active power, reactive power, power factor, branch phase voltage, divides phase current, frequency, harmonic wave, phase sequence, electric current and instantaneous voltage.
The utility model has the advantages of: need not have a power failure, electric energy meter ear envelope once and secondary circuit is not opened in the moved scene, does not revise the electric energy meter operational factor, do not change under the situation of electric energy meter relay status, whether on-the-spot detection and the every function of intelligent diagnosis electric energy meter are moved normally.The project that can detect has: the field diagnostic hardware fault comprises whether infrared communication circuit, RS485 circuit, carrier communication circuit, ESAM module and clock module etc. have hardware fault; Whether detect the various freezing data of electric energy meter unusual; Detect point, peak, put down, paddy tariff data and time zone, the time segment data whether unusual; Check whether logout has exception record, judge artificial the intrusion and other electricity filching behavior; Whether the operation of diagnosis clock is normal; The electric energy meter measuring accuracy is detected, judge whether overproof; Whether operational factors such as the active power that the diagnosis electric energy meter is measured, reactive power, power factor, branch phase voltage, branch phase current, frequency are overproof; Whether on-the-spot detection current transformer actual measurement no-load voltage ratio is consistent with nameplate.The on-the-spot electric energy meter of operation in spite of illness of in time finding makes electric energy meter really realize intellectuality, improves the utilization ratio of electric energy.Electric energy meter electric weight freezing data is copied and accepted at the scene; Obtaining the time and date that electric energy meter can on-the-spot be set; Electric energy meter electric weight data are copied and accepted at the scene, and storage and print data are as the foundation of remedying the electricity charge.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1, microcontroller; 2, communications interface unit; 3, storer; 4, display part; 5, clock module; 6, metering units; 7, input part; 8, pulse input block; 9, ESAM module; 10, IC-card module; 11, alarm unit; 12, current clamp; 13, voltage clamp; 14, computing machine/printer communication interface portion.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
The utility model intelligent electric energy meter on-site detecting device as shown in the figure, constitute by following structure: microcontroller 1, receive the steering order of input part, to communications interface unit 2, storer 3, display part 4 and clock module 5 operation signal, and the raw measurement data of collection metering units 6, and the data that the measurement data of gathering and communications interface unit are received electric energy meter compare, and judge whether the electric energy meter measurement data overproof, and with comparing result in display part 4 demonstrations; Metering units 6 current acquisition passage and the next simulating signal of voltage acquisition channel transfer, converts the measurement data of digital signal to after process filtering, amplification, sampling and the digital signal processing, and offers microcontroller 1; Communications interface unit 2, receive the signal of electric energy meter transmission and download user archives from server, and send microcontroller 1 to, upload on-the-spot test data and record in the server, the server of the utility model indication is the various database of information of electric company's leading subscriber; Storer 3, the files on each of customers that microcontroller 1 is received and the field electric energy table detects data and record is stored, and the files on each of customers of storage is provided to microcontroller 1; Input part 7 is to microcontroller 1 input control order; Display part 4 shows the testing result of microcontroller 1 and the parameter of importing to microcontroller 1 that is provided with; Current acquisition passage and voltage acquisition passage are gathered the electric current and the voltage signal of electric energy meter; Clock module 5 provides clock signal to microcontroller 1, and proofreads according to the clock signal that microcontroller 1 provides; Pulse input block 8 receives the pulse input signal of electric energy meter, and pulse input signal is sent to microcontroller; ESAM module 9: be used for the message exchange safety certification, carry out encryption and decryption with the data of microcontroller 1 transmission and handle; IC-card module 10 is sent to microcontroller 1 with the information of CPU card, and according to the control of microcontroller 1 to CPU card writing information; Alarm unit 11 is reported to the police according to the alerting signal of microcontroller 1, and wherein alarm unit 11 comprises warning LED lamp and hummer.
Display part is a liquid crystal display, liquid crystal display shows that metering units is by calculating energy value, active power, reactive power, power factor, branch phase voltage, dividing phase current, frequency, harmonic wave, phase sequence and electric current, instantaneous voltage, these data and the electric energy meter corresponding data contrast of gathering by the electric energy meter communications interface unit, judge whether the electric energy meter measurement data is overproof, and measurement result shows by liquid crystal display;
The detection method of intelligent electric energy meter on-site detecting device is characterized in that being made of following step: communicate by communications interface unit and server earlier, download user's to be measured files on each of customers, be stored in the storer; Detect behind the scene be divided into that the electric energy meter measuring accuracy detects, the detection of electric energy meter communication function and the detection of electric energy meter operational factor and data; Wherein the electric energy meter measuring accuracy detects and is: whether metering electric energy and the resultant metering electric energy of metering units that the pulse signal that microcontroller receives according to the pulse input block obtains electric energy meter compare overproof; The detection of electric energy meter communication function: the communications interface unit of communications interface unit and electric energy meter is communicated test, judge whether normally to receive and dispatch message; The detection of electric energy meter operational factor and data is to judge whether normally from communications interface unit reception electric energy meter operational factor and data according to microcontroller.
User to be measured suspects unusual user is arranged or need the user of generaI investigation regularly for the big community user of line loss, the long-range user that can't check meter, meter reading data.
During the electric energy meter measuring accuracy detects, metering units is passed to microcontroller with the analog signal conversion electric quantity data of current clamp and voltage clamp collection, microcontroller calculates the electrical energy meter accuracy error to the impulse electric charge data contrast of these data and electric energy meter input, when tested electric energy meter is the three-phase four-wire system electric energy meter, yellow, green, red, black four voltage clamps connect respectively on A, B, C three-phase phase line and the zero line of electric energy meter, and A, B, C three-phase current pincers are clipped in respectively on electric energy meter A, B, the C phase current lambda line; When tested electric energy meter is the three-phase three-wire system electric energy meter, yellow, green, red, black four voltage clamps connect respectively on A, B, C three-phase phase line and the zero line of electric energy meter, green voltage clamp and black voltage pincers also connect, and A phase and C phase current pincers are clipped in respectively on electric energy meter A, the C phase current lambda line; When tested electric energy meter is the single-phase intelligent electric energy meter, the phase line lambda line of A phase current cramp joint electric energy meter, yellow, black two voltage clamps are the phase line and the zero line of order phase electric energy meter respectively.
Communication test when the electric energy meter communication function detects comprises the test of infrared communication circuit, RS485 circuit and carrier communication circuit.
The detection of described electric energy meter operational factor and data comprises:
Read electric energy meter active power, reactive power, power factor, branch phase voltage, divide phase current, frequency measured data,, judge whether the measured value of electric energy meter is overproof with the measured value contrast; If overproof ± 1%, this electric energy meter are bug list;
Read freezing data: read the time and the electric quantity data that regularly freeze, draw regularly freezing curve, differentiate the rationality of the timing freezing data of electric energy meter; Read the time and the electric quantity data that freeze of day, draw a day freezing curve, differentiate electric energy meter day freezing data rationality; Read instantaneous time of freezing and electric quantity data, according to the time and the electric quantity data that freeze day and regularly freeze, differentiate instantaneous freeze whether reasonable; Read the agreement time and the electric quantity data that freeze,, differentiate agreement and whether freeze rationality according to the time and the electric quantity data that freeze day and regularly freeze; Read time and electric quantity data that integral point freezes, draw the integral point freezing curve, differentiate the rationality of the integral point freezing data of electric energy meter;
Read logout: read game clock lid record, analyze generation, the finish time of game clock lid incident, whether the section of declaring electric energy meter exists unusual game clock to cover artificial electricity filching behavior; Read the power down record, analyze the moment that power down takes place and finishes, whether the section of declaring electric energy meter exists powered-off fault; Record when reading the school, the moment and operator's code when analyzing the school are when judging whether to exist unusual school; Read Long-distance Control drawing lock logout, analysis is drawn, the combined floodgate incident takes place to judge whether to exist unusual drawing lock incident constantly; Read electric energy meter zero clearing logout, the electric energy data when the generation moment of analysis zero clearing incident and zero clearing judges whether to exist unusual zero clearing incident; Read the electric energy meter programming record, analyze the moment, operator's code, the programming item of programming, judged whether illegal programming; If tested electric energy meter is a three-phase electric energy meter, read each phase decompression record, each phase phase failure record, each phase defluidization record, full decompression record and negative phase sequence logout etc., be convenient to the management of power use and statistical study;
Read rate, period and electricity price data: read two cover time zones and the time segment data, with this files on each of customers contrast of storing in the on-site detecting device, judge whether time zone and period operational factor that electric energy meter stores correct; Read the electric energy meter running status, according to this table rate and period parameter, judge the operation that electric energy meter is present point, peak, put down, whether paddy rate value correct; Read the data of two cover rate electricity prices and two cover ladder electricity prices, with this files on each of customers contrast of storing in the on-site detecting device, whether the electricity price operational factor of judging the electric energy meter storage is correct, if these data are misdata, need read programmed recording profiling error reason, judge whether it is that the people is for changing by mistake operational factor or cheating electricity filching behavior; If not artificial change, then this electric energy meter is a bug list;
Read clock of power meter,, judge whether clock of power meter is overproof with the system clock contrast of on-site detecting device, if clock is overproof, record when reading the school, the correctness when analyzing the school, record is errorless during as the school, and this electric energy meter is a bug list;
ESAM module with publicly-owned key, message is sent to electric energy meter by microcontroller and communications interface unit, the message that returns according to the ESAM security module of electric energy meter, the ESAM security module of judging electric energy meter denys that identification has the message that publicly-owned key ESAM module sends, microcontroller receives the message that electric energy meter ESAM security module is returned, if expressly, microcontroller is directly judged, if need the message of translation, microcontroller is sent to the ESAM module with the message that returns and translates, deliver to microcontroller again after the translation of ESAM module and further judge, determine whether the ESAM security module work of electric energy meter is normal;
Multifunctional signal output detects: multifunctional signal output is set to the output time signal, utilizes the pulse mouth of pulse input block and tested electric energy meter to join, and detects the time pulse of electric energy meter, and whether the time pulse of differentiating tested electric energy meter is overproof; Multifunctional signal output is set to export period switching signal, and on-site detecting device detects tested electric energy meter period switching signal before and after switching time period, and whether differentiate tested intelligent electric energy meter period switching signal correct.
Claims (5)
1. intelligent electric energy meter on-site detecting device, it is characterized in that constituting: microcontroller by following structure, receive the steering order of input part, to communications interface unit, storer, display part and clock module operation signal, and the raw measurement data of collection metering units, and the data that the measurement data of gathering and communications interface unit are received electric energy meter are compared, judge whether the electric energy meter measurement data is overproof, and comparing result is shown at display part; Metering units current acquisition passage and the next simulating signal of voltage acquisition channel transfer, converts the measurement data of digital signal to after process filtering, amplification, sampling and the digital signal processing, and offers microcontroller; Communications interface unit, carry out data communication with electric energy meter and from server the download user archives, and send microcontroller to, upload the data of on-the-spot test and record in the server; Storer, the files on each of customers that microcontroller is received and the field electric energy table detects data and record is stored, and the files on each of customers of storage is provided to microcontroller; Input part is to the microcontroller input control order; Display part shows the testing result of microcontroller and the parameter of importing to microcontroller that is provided with; Current acquisition passage and voltage acquisition passage are gathered the electric current and the voltage signal of electric energy meter; Clock module provides clock signal to microcontroller, and proofreads according to the clock signal that microcontroller provides; The pulse input block receives the pulse input signal of electric energy meter, and pulse input signal is sent to microcontroller.
2. intelligent electric energy meter on-site detecting device according to claim 1 is characterized in that also comprising following structure: the ESAM module: be used for the message exchange safety certification, to the data encryption and decryption to guarantee safety of data transmission and integrality; The IC-card module is sent to microcontroller with the information of CPU card, and according to the control of microcontroller to CPU card writing information; Alarm unit is reported to the police according to the alerting signal of microcontroller, and wherein alarm unit comprises warning LED lamp and hummer.
3. intelligent electric energy meter on-site detecting device according to claim 1, it is characterized in that described communications interface unit comprises electric energy meter communications interface unit and computing machine/printer communication interface portion, the electric energy meter communications interface unit comprises infrared communication circuit and RS485 circuit.
4. intelligent electric energy meter on-site detecting device according to claim 3 is characterized in that described electric energy meter communications interface unit also comprises the carrier communication circuit; Computing machine/printer communication interface portion comprises USB circuit, RS232 circuit or RS485 circuit.
5. intelligent electric energy meter on-site detecting device according to claim 1 is characterized in that described input part comprises numerical key, directionkeys, ESC Escape, acknowledgement key, start key, printing key, shutter key and key backlight; Current acquisition passage and voltage acquisition passage are respectively current clamp and voltage clamp; The pulse input block is light pulse input detecting circuit or electric pulse input detecting circuit; Files on each of customers is the operational factor and the data of electric energy meter; The raw measurement data of metering units is electric flux, active power, reactive power, power factor, branch phase voltage, divides phase current, frequency, harmonic wave, phase sequence, electric current and instantaneous voltage.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020259154XU CN201716409U (en) | 2010-07-15 | 2010-07-15 | On-site testing device for intelligent electric energy meter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201020259154XU CN201716409U (en) | 2010-07-15 | 2010-07-15 | On-site testing device for intelligent electric energy meter |
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| CN201716409U true CN201716409U (en) | 2011-01-19 |
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| CN201020259154XU Expired - Lifetime CN201716409U (en) | 2010-07-15 | 2010-07-15 | On-site testing device for intelligent electric energy meter |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900801A (en) * | 2010-07-15 | 2010-12-01 | 田卫华 | Intelligent electric energy meter field test device and test method thereof |
| CN102162842A (en) * | 2011-05-25 | 2011-08-24 | 重庆电力科学试验研究院 | Online check meter of high-voltage electric energy metering device |
| WO2013040726A1 (en) * | 2011-09-25 | 2013-03-28 | 安徽省电力公司宣城供电公司 | On-site tester for electricity usage information collection system and testing method thereof |
| CN104392603A (en) * | 2014-11-20 | 2015-03-04 | 国家电网公司 | Intelligent diagnosis system of on-site power consumption information acquisition device |
| CN104597421A (en) * | 2013-10-31 | 2015-05-06 | 南通富士特电力自动化有限公司 | Reactive compensation automatic calibrating device |
| CN106019206A (en) * | 2016-07-15 | 2016-10-12 | 国网河北省电力公司衡水供电分公司 | Electric energy meter field inspection device and electric energy meter |
| CN107748283A (en) * | 2017-11-14 | 2018-03-02 | 贵州电网有限责任公司 | A kind of micro energy lose electric energy meter metered voltage current monitoring alarm device and its monitoring method |
| CN108053634A (en) * | 2017-12-28 | 2018-05-18 | 成都博高信息技术股份有限公司 | Offline meter copying device, meter register method and adjustment method with infrared certification |
| CN110596629A (en) * | 2019-09-18 | 2019-12-20 | 宿州市泰华仪表有限公司 | Automatic debugging system and automatic debugging method of portable calibrator |
| CN113391256A (en) * | 2021-05-28 | 2021-09-14 | 国网河北省电力有限公司营销服务中心 | Electric energy meter metering fault analysis method and system of field operation terminal |
| CN117008043A (en) * | 2023-09-27 | 2023-11-07 | 青岛鼎信通讯股份有限公司 | Electric energy meter fault simulation detection system and method |
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2010
- 2010-07-15 CN CN201020259154XU patent/CN201716409U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900801A (en) * | 2010-07-15 | 2010-12-01 | 田卫华 | Intelligent electric energy meter field test device and test method thereof |
| CN101900801B (en) * | 2010-07-15 | 2012-11-07 | 沈阳工程学院 | Intelligent electric energy meter field test device and test method thereof |
| CN102162842A (en) * | 2011-05-25 | 2011-08-24 | 重庆电力科学试验研究院 | Online check meter of high-voltage electric energy metering device |
| CN102162842B (en) * | 2011-05-25 | 2013-04-10 | 重庆市电力公司电力科学研究院 | Online check meter of high-voltage electric energy metering device |
| WO2013040726A1 (en) * | 2011-09-25 | 2013-03-28 | 安徽省电力公司宣城供电公司 | On-site tester for electricity usage information collection system and testing method thereof |
| CN104597421A (en) * | 2013-10-31 | 2015-05-06 | 南通富士特电力自动化有限公司 | Reactive compensation automatic calibrating device |
| CN104392603A (en) * | 2014-11-20 | 2015-03-04 | 国家电网公司 | Intelligent diagnosis system of on-site power consumption information acquisition device |
| CN104392603B (en) * | 2014-11-20 | 2017-09-01 | 国家电网公司 | A kind of live power information collecting device intelligent diagnosis system |
| CN106019206A (en) * | 2016-07-15 | 2016-10-12 | 国网河北省电力公司衡水供电分公司 | Electric energy meter field inspection device and electric energy meter |
| CN107748283A (en) * | 2017-11-14 | 2018-03-02 | 贵州电网有限责任公司 | A kind of micro energy lose electric energy meter metered voltage current monitoring alarm device and its monitoring method |
| CN108053634A (en) * | 2017-12-28 | 2018-05-18 | 成都博高信息技术股份有限公司 | Offline meter copying device, meter register method and adjustment method with infrared certification |
| CN110596629A (en) * | 2019-09-18 | 2019-12-20 | 宿州市泰华仪表有限公司 | Automatic debugging system and automatic debugging method of portable calibrator |
| CN113391256A (en) * | 2021-05-28 | 2021-09-14 | 国网河北省电力有限公司营销服务中心 | Electric energy meter metering fault analysis method and system of field operation terminal |
| CN117008043A (en) * | 2023-09-27 | 2023-11-07 | 青岛鼎信通讯股份有限公司 | Electric energy meter fault simulation detection system and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110119 Effective date of abandoning: 20130227 |
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| RGAV | Abandon patent right to avoid regrant |