CN204269811U - Electric energy meter remote online monitoring system - Google Patents
Electric energy meter remote online monitoring system Download PDFInfo
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- CN204269811U CN204269811U CN201420803903.9U CN201420803903U CN204269811U CN 204269811 U CN204269811 U CN 204269811U CN 201420803903 U CN201420803903 U CN 201420803903U CN 204269811 U CN204269811 U CN 204269811U
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Abstract
The utility model relates to a kind of electric energy meter remote online monitoring system, comprise the data server, the electric energy meter management and monitoring terminal that are positioned at remote side administration main website and be positioned at the local electric energy meter monitoring means of each plant stand, local electric energy meter monitoring means is connected with the electric energy meter of each electricity consumption website under its compass of competency, multiple local electric energy meter monitoring means and data server are wireless or to be wiredly connected by long-distance communication network, and data server is connected with electric energy meter management and monitoring terminal again.Local electric energy meter monitoring means comprises industrial computer, standard electric energy meter, two communication units and electric energy meter pulse acquisition switch unit.The utility model current collection energy Signal acquiring and processing, data base administration, electric energy meter error automatic Verification, secondary circuit status monitoring and report to the police in one, long-range comprehensive on-line testing, breakdown judge, record analysis can be carried out to operating electric energy meter, time saving and energy saving, realize the remote-controlled test of electric energy meter, data analysis and unified management.
Description
Technical field
The utility model relates to a kind of electric energy meter detection equipment, particularly relates to a kind of electric energy meter remote online monitoring system.
Background technology
The electric energy meter detection equipment of current use, function ratio is more, and displaying contents is also abundanter, but generally all can only carry out this locality detection in electric energy meter production plant stand, is the checkout equipment before electric energy meter dispatches from the factory.And for being arranged on the electric energy meter of user side use, will detect it, current is on-site calibrator, is also kind of a local checkout equipment.For installing and the electric energy meter put into operation, also there is no a kind of equipment that can carry out comprehensive on-line testing to it at present, to the maintenance of electric energy meter, also rest on be out of order, report for repairment, detection of visiting, maintenance or stage of changing, waste time and energy, unified online management and data analysis cannot be carried out to electric energy meter, greatly have impact on administering and maintaining of electric energy meter.
Summary of the invention
The utility model mainly solves original electric energy meter detection equipment all can only carry out this locality detection to electric energy meter, to the maintenance of the electric energy meter come into operation, also rest on be out of order, report for repairment, detection of visiting, maintenance or stage of changing, waste time and energy, unified online management and data analysis cannot be carried out to electric energy meter, greatly have impact on the technical matters administered and maintained of electric energy meter; A kind of electric energy meter remote online monitoring system is provided, it can carry out remote on-line measurement, breakdown judge, record analysis to the electric energy meter come into operation, realize the unified management of electric energy meter, data analysis and remote-controlled test, time saving and energy saving, greatly improve administering and maintaining of electric energy meter.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals: the utility model comprises the data server, the electric energy meter management and monitoring terminal that are positioned at remote side administration main website and is positioned at the local electric energy meter monitoring means of each plant stand, local electric energy meter monitoring means is connected with the electric energy meter of each electricity consumption website under its compass of competency, multiple local electric energy meter monitoring means and described data server are wireless or to be wiredly connected by long-distance communication network, and data server is connected by LAN (Local Area Network) with described electric energy meter management and monitoring terminal again.Local electric energy meter monitoring means carries out on-line checkingi to the electric energy meter of its subordinate, and Monitoring Data, test parameter are sent to the data server of far-end by long-distance communication network, then flows to electric energy meter management and monitoring terminal by data server.Electric energy meter management and monitoring terminal also carries out remote-controlled test by long-distance communication network to the electric energy meter of front end.Electric energy meter management and monitoring terminal carries out unified management and data analysis to each electric energy meter, can also provide data source for other management systems.Each electric energy meter is linked to be a monitoring network by the utility model, and electric energy meter management and monitoring terminal can monitor the electricity consumption situation of each electricity consumption website and the operation conditions of electric energy meter online, in real time, is convenient to Timeliness coverage problem, deals with in time.The utility model can carry out remote on-line measurement, breakdown judge, record analysis to the electric energy meter come into operation, and realizes the unified management of electric energy meter, time saving and energy saving, greatly improves administering and maintaining of electric energy meter.
As preferably, described long-distance communication network is Ethernet, gsm wireless communication network, cdma wireless communication network, pstn telephone net or RS232 communication cable.As required, multiple communication modes can be adopted to carry out data interaction, use flexibly.
As preferably, described local electric energy meter monitoring means comprises CPU (central processing unit), push-button unit, display unit, first communication unit, second communication unit, electric quantity acquisition monitoring means, electric energy error test cell, electric current CT switch unit, voltage PT switch unit and electric energy meter pulse acquisition switch unit, push-button unit, display unit, first communication unit, second communication unit, electric quantity acquisition monitoring means, electric energy error test cell, electric current CT switch unit, voltage PT switch unit and electric energy meter pulse acquisition switch unit are connected with described CPU (central processing unit) respectively, the first described communication unit and described data server are wireless or to be wiredly connected by long-distance communication network, the second described communication unit is connected with the electric energy meter being arranged on each electricity consumption website.CPU (central processing unit), push-button unit and display unit adopt industrial PC to realize, industrial PC is with LCDs and QWERTY keyboard, can manual operation, also can realize various functional test by the electric energy meter management and monitoring terminal control electric quantity acquisition monitoring means of remote side administration main website, electric current CT switch unit, voltage PT switch unit and electric energy meter pulse acquisition switch unit.Its first up communication unit can adopt RS232, Ethernet, GSM net, cdma wireless communication network or pstn telephone network and far-end electric energy meter management and monitoring terminal to realize communication, and its second descending communication unit adopts 485 bus modes and each electric energy meter to realize communication.The electric energy meter input pulse of electric energy meter pulse acquisition switch unit to multiple loop switches, and switch logic is consistent with current return CT switch logic.Electric quantity acquisition monitoring means, electric energy error test cell, electric current CT switch unit and voltage PT switch unit form Multi-channel multifunctional standard electric energy meter, i.e. on-line testing detecting unit, and each functional module adopts plug-in card mode to install, convenient expansion.Multi-channel multifunctional standard electric energy meter has the various electric quantity acquisition functions such as current loop voltage, electric current, power, phase place, power factor and frequency, has idle electrical energy pulse to export simultaneously, also selects to export by switching; Electric energy error test can be carried out to the electric energy meter of on-line operation, possess three road tested table Puled input interfaces, three tunnel pulses measuring ability simultaneously can be realized, improve detection efficiency; Can the pressure drop of on-line testing PT secondary circuit; Can the load of on-line testing CT secondary circuit.
As preferably, described electric current CT switch unit comprises terminal block, transfer relay and multiple sampling CT, respective terminal of primary coil respectively in terminal block of multiple sampling CT is connected with multiple electric energy meter, the secondary coil of each sampling CT is parallel with a resistance, one end of the secondary coil of each sampling CT all connects together and forms an output terminal of electric current CT switch unit, the other end of the secondary coil of each sampling CT is connected with each contact of described transfer relay respectively, the common point of transfer relay forms another output terminal of electric current CT switch unit.Electric current CT switch unit adopts plug-in card mode to install, and each unit can install 6 group of 18 tunnel sampling CT, and can switch sampling CT secondary circuit, ensures that CT can not open a way.Four electric current CT switch units can be realized at most and carry out cascade.Each current return of electric current CT switch unit installs a sampling CT, a complete loop is connected to form by terminal block and corresponding tested current return, when needing the electric current in detection first loop, sampled signal (current switching output signal) is switched to the secondary side of corresponding sampling CT by passage bridge relay, and sampled signal is input to electric quantity acquisition monitoring means and measures.How CT secondary side of no matter sampling switches, and the primary side of sampling CT all can not be opened a way, thus can avoid opening a way the potential safety hazard caused because of CT.As a Multi-channel multifunctional standard electric energy meter part, when needs censorship, can the splicing ear of each sampling CT primary coil in first short-circuited terminal row, then pull down standard scale, also can ensure that current return can not be opened a way.
The beneficial effects of the utility model are: integrate electric power signal, data acquisition and procession, data base administration, field electric energy Watch Error automatic Verification, secondary circuit status monitoring, warning and communication, monitoring range comprises electric energy meter, voltage transformer (VT), current transformer and whole secondary circuit thereof, long-range omnibearing on-line testing, breakdown judge, record analysis can be carried out in the process run to electric energy measuring equipment, realize the unified management of electric energy meter, data analysis and remote-controlled test, time saving and energy saving, greatly improve administering and maintaining of electric energy meter.
Accompanying drawing explanation
Fig. 1 is a kind of system syndeton block diagram of the present utility model.
Fig. 2 is a kind of circuit theory syndeton block diagram of local electric energy meter monitoring means in the utility model.
Fig. 3 is a kind of circuit theory diagrams of electric current CT switch unit in the utility model.
1. remote side administration main website, 2. data servers, 3. electric energy meter management and monitoring terminal in figure, 4. plant stand, 5. local electric energy meter monitoring means, 6. electric energy meter, 7. long-distance communication network, 8. CPU (central processing unit), 9. push-button unit, 10. display unit, 11. first communication units, 12. second communication units, 13. electric quantity acquisition monitoring means, 14. electric energy error test cells, 15. electric current CT switch units, 16. voltage PT switch units, 17. electric energy meter pulse acquisition switch units, 18. terminal block, 19. transfer relays, 20. sampling CT, 21. resistance.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the electric energy meter remote online monitoring system of the present embodiment, as shown in Figure 1, comprise the data server 2 and electric energy meter management and monitoring terminal 3 that are arranged on remote side administration main website 1 and the local electric energy meter monitoring means 5 being arranged on each plant stand 4, local electric energy meter monitoring means 5 is connected with the electric energy meter 6 of each electricity consumption website under its compass of competency, multiple local electric energy meter monitoring means 5 is connected by long-distance communication network 7 with data server 2, and data server 2 is connected by LAN (Local Area Network) with electric energy meter management and monitoring terminal 3 again.
Electric energy meter management and monitoring terminal 3 is a PC or industrial computer.As shown in Figure 2, local electric energy meter monitoring means 5 comprises CPU (central processing unit) 8, push-button unit 9, display unit 10, first communication unit 11, second communication unit 12, electric quantity acquisition monitoring means 13, electric energy error test cell 14, electric current CT switch unit 15, voltage PT switch unit 16 and electric energy meter pulse acquisition switch unit 17, push-button unit 9, display unit 10, first communication unit 11, second communication unit 12, electric quantity acquisition monitoring means 13, electric energy error test cell 14, electric current CT switch unit 15, voltage PT switch unit 16 and electric energy meter pulse acquisition switch unit 17 are connected with CPU (central processing unit) 8 respectively, first communication unit 11 is connected by long-distance communication network 7 with data server 2, second communication unit 12 is connected with the electric energy meter 6 being arranged on each electricity consumption website.The first up communication unit can adopt RS232, Ethernet, GSM net, cdma wireless communication network or pstn telephone network and far-end electric energy meter management and monitoring terminal to realize communication, and the second descending communication unit adopts 485 bus modes and each electric energy meter to realize communication.As shown in Figure 3, electric current CT switch unit 15 comprises terminal block 18, transfer relay 19 and multiple sampling CT20, respective terminal of primary coil respectively in terminal block 18 of multiple sampling CT20 is connected with multiple electric energy meter 6, the secondary coil of each sampling CT20 is parallel with a resistance 21, one end of the secondary coil of each sampling CT20 all connects together and forms an output terminal of electric current CT switch unit 15, the other end of the secondary coil of each sampling CT20 is connected with each contact of transfer relay 19 respectively, the common point of transfer relay 19 forms another output terminal of electric current CT switch unit 15.
CPU (central processing unit), push-button unit and display unit adopt industrial PC to realize, industrial PC is with LCDs and QWERTY keyboard, can manual operation, also can realize various functional test by the electric energy meter management and monitoring terminal control electric quantity acquisition monitoring means of remote side administration main website, electric current CT switch unit, voltage PT switch unit and electric energy meter pulse acquisition switch unit.Electric quantity acquisition monitoring means, electric energy error test cell, electric current CT switch unit and voltage PT switch unit form Multi-channel multifunctional standard electric energy meter, i.e. on-line testing detecting unit, and each functional module adopts plug-in card mode to install, convenient expansion.Multi-channel multifunctional standard electric energy meter has the various electric quantity acquisition functions such as current loop voltage, electric current, power, phase place, power factor and frequency, has idle electrical energy pulse to export simultaneously, also selects to export by switching; Electric energy error test can be carried out to the electric energy meter of on-line operation, possess three road tested table Puled input interfaces, three tunnel pulses measuring ability simultaneously can be realized, improve detection efficiency; Can the pressure drop of on-line testing PT secondary circuit; Can the load of on-line testing CT secondary circuit.Electric current CT switch unit adopts plug-in card mode to install, and each unit can install 6 group of 18 tunnel sampling CT, and can switch sampling CT secondary circuit, ensures that CT can not open a way.Four electric current CT switch units can be realized at most and carry out cascade.Each current return of electric current CT switch unit installs a sampling CT, a complete loop is connected to form by terminal block and corresponding tested current return, when needing the electric current in detection first loop, sampled signal (current switching output signal) is switched to the secondary side of corresponding sampling CT by passage bridge relay, and sampled signal is input to electric quantity acquisition monitoring means and measures.How CT secondary side of no matter sampling switches, and the primary side of sampling CT all can not be opened a way, thus can avoid opening a way the potential safety hazard caused because of CT.As a Multi-channel multifunctional standard electric energy meter part, when needs censorship, can the splicing ear of each sampling CT primary coil in first short-circuited terminal row, then pull down standard scale, also can ensure that current return can not be opened a way.Voltage PT switch unit adopts plug-in card mode to install, and can realize maximum four sections of bus PT and switch.The electric energy meter input pulse of electric energy meter pulse acquisition switch unit to multiple loop switches, and switch logic is consistent with current return CT switch logic.
The electric energy meter management and monitoring terminal of far-end carries out unified management and data analysis to being arranged on the Monitoring Data of local electric energy meter monitoring means of each plant stand, test parameter and remote-controlled test, can also provide data source for other management systems, it possesses following major function simultaneously:
1, long-range remote control function: the Remote test realizing the local electric energy meter monitoring means of plant stand, judge electricity consumption situation and electric energy measuring equipment operation conditions; Realize the test parameter setting of the local electric energy meter monitoring means of plant stand, reading and amendment etc.; The download to the test record in the local electric energy meter monitoring means of plant stand each in operation and storage can be realized;
2, data statistic analysis function: possess data statistics function, can according to time inquiring historical data, and can derived data in the form of a spreadsheet, automatically generates various statistical report form; Can show, every history warning message of inquiry system and content; Possess trend map and draw function;
3, abnormal information warning function: active reporting is carried out to various abnormal conditions, and notifies operation maintenance personnel in time;
4, data sharing function: can according to given data layout, realizes sharing of data and other data management systems.
The utility model can be tested by local operation electric energy meter, also long-rangely can carry out telemonitoring; Comprehensive on-line monitoring can be carried out to electric energy measuring equipment, effectively can solve the problem of manual site's calibrating and fault handling cycle length; The load condition of each circuit of on-line real time monitoring and the error condition of electric energy meter, can carry out online evaluation to the accuracy of electric energy meter and degree of stability; The on-line monitoring of PT secondary circuit voltage drop and load, CT secondary circuit load and electric energy meter operating condition can be realized, judge the operation conditions of secondary circuit more accurately; Possess the function of on-site calibrator, support multiple communication modes.
The utility model major function:
1. can measure and show the electric power instantaneous parameterses such as voltage, electric current, power factor, phase angle, frequency, active power, reactive power and applied power, and providing display, sound and remote alarms to the abnormal conditions of monitored circuit in time.
2. meritorious and reactive energy error can verify electric energy meter, possess major-minor table test function simultaneously.
3. can realize Width funtion, current signal directly inputs, system possesses voltage, current range automatic switching function.
4. possess voltage, electric current vector plot measure and Presentation Function, can conveniently judge field wiring situation.
5. there is voltage, current waveform display function, and frequency analysis can be carried out to voltage, current signal, and show with histogram.
6. possess 4 sections of bus PT and maximum 24 groups of CT handoff functionalities, on-line monitoring can be carried out to the secondary circuit voltage drop of PT and CT secondary circuit actual load, judge the operation conditions of secondary circuit more accurately.
7. to be entered by local keyboard number or communication interface (Local or Remote) arranges all kinds of parameter, as: verification meter constant, measure the number of turns, the mode of connection, access PT and CT information, measure content, test assignment function can be formulated.Realize each monitoring function test that Local or Remote starts any loop.
8. all Monitoring Data can be preserved manually or automatically, facilitate local and remote PC to carry out data download.
9. possess local and remote warning function, system all can send warning message when finding that self abnormal and monitored loop is abnormal.
10. the available warning message of system comprises: circuit decompression, defluidization; Electric energy meter is overproof; PT secondary circuit voltage drop transfinites; CT and secondary circuit operation exception thereof, and make qualitative analysis, prompting; System self is abnormal waits warning message.
11. systems support multiple communication modes, comprising: RSR232 serial communication, gsm wireless communication, cdma wireless communication, pstn telephone network communication, INTERNET/LAN network communication.
12. far-end electric energy meter management and monitoring terminal management software functions: Chinesizing interface, possesses subscriber management function, can carry out the different operating content that can set according to different authorities to on-site terminal equipment; Possesses remote manual remote-controlled test function; Possess that teledata is downloaded, the download of the various parameters of field monitoring equipment, amendment, upload function; Possess database document, can according to time inquiring historical test data, and derived data in the form of a spreadsheet; Possess data statistics function, all kinds of forms such as electric energy meter error data sheet, PT secondary voltage drop form, CT bis-admittance measurement forms, CT secondary load, PT secondary load form, on-the-spot parameters of electric power form can be formed; Possess data analysis function, can alarming value setting be carried out, the parameter variation tendency figure such as ammeter error, PT secondary circuit voltage drop, CT and secondary circuit admittance change thereof can be formed; Can show, every history warning message content of inquiry system; Same field monitoring equipment can allow multiple stage background PC computer to conduct interviews to data in different time sections, but the same time only has one can connect, and same background PC computer can conduct interviews to multiple stage field monitoring device data in different time sections simultaneously; Can to metering outfit composition error Online statistics and analysis; Possess WEB issuing function, can the WEB resource sharing of fulfillment database.
Claims (4)
1. an electric energy meter remote online monitoring system, it is characterized in that comprising the data server (2) being positioned at remote side administration main website (1), electric energy meter management and monitoring terminal (3) and be positioned at the local electric energy meter monitoring means (5) of each plant stand (4), local electric energy meter monitoring means (5) is connected with the electric energy meter (6) of each electricity consumption website under its compass of competency, multiple local electric energy meter monitoring means (5) and described data server (2) are wireless or to be wiredly connected by long-distance communication network (7), data server (2) is connected by LAN (Local Area Network) with described electric energy meter management and monitoring terminal (3) again.
2. electric energy meter remote online monitoring system according to claim 1, is characterized in that described long-distance communication network (7) is Ethernet, gsm wireless communication network, cdma wireless communication network, pstn telephone net or RS232 communication cable.
3. electric energy meter remote online monitoring system according to claim 1 and 2, is characterized in that described local electric energy meter monitoring means (5) comprises CPU (central processing unit) (8), push-button unit (9), display unit (10), first communication unit (11), second communication unit (12), electric quantity acquisition monitoring means (13), electric energy error test cell (14), electric current CT switch unit (15), voltage PT switch unit (16) and electric energy meter pulse acquisition switch unit (17), push-button unit (9), display unit (10), first communication unit (11), second communication unit (12), electric quantity acquisition monitoring means (13), electric energy error test cell (14), electric current CT switch unit (15), voltage PT switch unit (16) and electric energy meter pulse acquisition switch unit (17) are connected with described CPU (central processing unit) (8) respectively, described the first communication unit (11) and described data server (2) are wireless or to be wiredly connected by long-distance communication network (7), and described the second communication unit (12) is connected with the electric energy meter (6) being arranged on each electricity consumption website.
4. electric energy meter remote online monitoring system according to claim 3, it is characterized in that described electric current CT switch unit (15) comprises terminal block (18), transfer relay (19) and multiple sampling CT (20), respective terminal of primary coil respectively in terminal block (18) of multiple sampling CT (20) is connected with multiple electric energy meter (6), the secondary coil of each sampling CT (20) is parallel with a resistance (21), one end of the secondary coil of each sampling CT (20) all connects together and forms an output terminal of electric current CT switch unit (15), the other end of the secondary coil of each sampling CT (20) is connected with each contact of described transfer relay (19) respectively, the common point of transfer relay (19) forms another output terminal of electric current CT switch unit (15).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420803903.9U CN204269811U (en) | 2014-12-17 | 2014-12-17 | Electric energy meter remote online monitoring system |
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| CN201420803903.9U CN204269811U (en) | 2014-12-17 | 2014-12-17 | Electric energy meter remote online monitoring system |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044657A (en) * | 2015-09-11 | 2015-11-11 | 成都思晗科技股份有限公司 | Gateway electric energy meter monitoring system |
| CN105158724A (en) * | 2015-08-18 | 2015-12-16 | 宁波三星智能电气有限公司 | NRF905-based wireless meter calibration system and meter calibration method thereof |
| CN105160864A (en) * | 2015-09-21 | 2015-12-16 | 国网上海市电力公司 | Operating data monitoring system and method for intelligent ammeters |
| CN105204466A (en) * | 2015-09-22 | 2015-12-30 | 波瑞电气有限公司 | Online electric energy managing device based on CDMA network telecommunication |
| CN105203987A (en) * | 2015-10-27 | 2015-12-30 | 国网山东利津县供电公司 | Long-distance detection device and method for electric energy measurement of transformer substation |
| CN105911343A (en) * | 2016-04-13 | 2016-08-31 | 董地 | Remote real-time monitoring system for electric power based on electric energy meter |
| CN106444705A (en) * | 2016-09-26 | 2017-02-22 | 国网冀北电力有限公司电力科学研究院 | Test method, test system and power utilization information acquisition system |
| CN107134853A (en) * | 2017-05-26 | 2017-09-05 | 青岛卓迅电子科技有限公司 | A kind of electric energy meter remote monitoring system and its method |
| CN107589391A (en) * | 2017-07-27 | 2018-01-16 | 武汉尤瑞卡节能科技有限公司 | A kind of methods, devices and systems for detecting electric power meter global error |
| CN109725277A (en) * | 2017-10-30 | 2019-05-07 | 河南赛贝电子科技有限公司 | A kind of long-range real-time check-up monitoring of energy meter distributed |
| CN111914969A (en) * | 2020-08-12 | 2020-11-10 | 国网黑龙江省电力有限公司供电服务中心 | Electric energy meter test management service system |
-
2014
- 2014-12-17 CN CN201420803903.9U patent/CN204269811U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158724A (en) * | 2015-08-18 | 2015-12-16 | 宁波三星智能电气有限公司 | NRF905-based wireless meter calibration system and meter calibration method thereof |
| CN105158724B (en) * | 2015-08-18 | 2018-05-29 | 宁波三星智能电气有限公司 | A kind of correction method based on the wireless meter correcting systems of nRF905 |
| CN105044657B (en) * | 2015-09-11 | 2017-12-19 | 成都思晗科技股份有限公司 | Gate energy meter monitoring system |
| CN105044657A (en) * | 2015-09-11 | 2015-11-11 | 成都思晗科技股份有限公司 | Gateway electric energy meter monitoring system |
| CN105160864A (en) * | 2015-09-21 | 2015-12-16 | 国网上海市电力公司 | Operating data monitoring system and method for intelligent ammeters |
| CN105204466A (en) * | 2015-09-22 | 2015-12-30 | 波瑞电气有限公司 | Online electric energy managing device based on CDMA network telecommunication |
| CN105203987A (en) * | 2015-10-27 | 2015-12-30 | 国网山东利津县供电公司 | Long-distance detection device and method for electric energy measurement of transformer substation |
| CN105911343A (en) * | 2016-04-13 | 2016-08-31 | 董地 | Remote real-time monitoring system for electric power based on electric energy meter |
| CN106444705A (en) * | 2016-09-26 | 2017-02-22 | 国网冀北电力有限公司电力科学研究院 | Test method, test system and power utilization information acquisition system |
| CN107134853A (en) * | 2017-05-26 | 2017-09-05 | 青岛卓迅电子科技有限公司 | A kind of electric energy meter remote monitoring system and its method |
| CN107589391A (en) * | 2017-07-27 | 2018-01-16 | 武汉尤瑞卡节能科技有限公司 | A kind of methods, devices and systems for detecting electric power meter global error |
| CN109725277A (en) * | 2017-10-30 | 2019-05-07 | 河南赛贝电子科技有限公司 | A kind of long-range real-time check-up monitoring of energy meter distributed |
| CN111914969A (en) * | 2020-08-12 | 2020-11-10 | 国网黑龙江省电力有限公司供电服务中心 | Electric energy meter test management service system |
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