CN2854608Y - Electric energy metering data monitor - Google Patents
Electric energy metering data monitor Download PDFInfo
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- CN2854608Y CN2854608Y CN 200520140161 CN200520140161U CN2854608Y CN 2854608 Y CN2854608 Y CN 2854608Y CN 200520140161 CN200520140161 CN 200520140161 CN 200520140161 U CN200520140161 U CN 200520140161U CN 2854608 Y CN2854608 Y CN 2854608Y
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Abstract
The utility model belongs to power calculation monitoring device in the power distributing system, more particularly relating to a monitoring device of user's power energy calculation. The utility model is composed of five modules, data collection, data processing analysis, data storage, and data display and data transmission .They can define the three-phase voltage, range of currents and phase relations. The utility model is able to provide real-time enquiry to power analyzers and power inspection personnel, and promptly discover the abnormality and realize the on-site inspection, solve the contradiction in the preliminary stage, and offer function of providing ''flash'' for theft reasons, withdrawal and compensation the power amount as well as criminal lawsuit, thus safeguarding the economic interest of the power supply enterprises.
Description
One, technical field
The utility model belongs to the monitoring device of electric energy metrical in the power supply-distribution system, particularly about the monitoring device of user's electric energy metrical.
Two, background technology
Electric power meter is the visual plant of settling accounts between power supply enterprise and the client, ensures power supply enterprise's economic interests, guarantees the charge calculation correctness, is the basic duty of power supply enterprise.We are in the inspection verification work on the spot to electric energy measuring equipment, often find " abnormality " phenomenon of measurement data violation alternating current rule, directly have influence on the economic interests of power supply enterprise, trace it to its cause, following several situation 1 is probably arranged: the installation personnel miswork causes wiring error; 2: metering outfit in service and measurement loop break down; 3: stealing is carried out in artificial change wiring etc. on measurement loop.So the on-site measurement in electric energy metrical loop, the inspection of mistake just become important and regular work.But find that query to field-checking, has been afterwards.Workload is big, and the operation of equipment complexity also has to have a power failure, security problems, and particularly high-tech stealing, measurement loop can recover normal in moment, can't check.Check exactly and go wrong, calculate and move back the benefit electric weight, go to court, lack raw data.Involve manpower, energy, material resources are very big, and also ten benefits nine are incomplete.
At present, general wiring check method is to pass through voltage table, reometer, power meter, phase meter is measured many group power or phase data, " hexagonal figure " in view of the above draws, analyze phase relation between each phase voltage, the electric current according to " hexagonal figure ", or adopt electric energy meter on-site calibrator determining whether the mode of connection is correct, and the reason that wiring error takes place.Above method complicated operation is wasted time and energy, and also requires the tester to have higher electrical theory level and abundant working experience, and difficulty is bigger, also has to have a power failure security problems.
Three, summary of the invention
(1) goal of the invention
The purpose of this utility model is a kind of electric energy metrical loop field monitoring device of installing in the electric energy metrical loop of design, can carry out long term monitoring and time recording to electric energy metrical loop service data.
(2) technical scheme
The technical solution of the utility model is: a kind of electric energy measurement data monitor, it is characterized in that: have the housing of display, it includes sensor circuit, data input modulate circuit, electronic switching circuit, analog to digital conversion circuit, sequential monitoring circuit, phase discriminant circuit, data acquisition single-chip microcomputer, data presentation single-chip microcomputer, data processing single-chip microcomputer, metering cabinet open the door information and electric energy meter pulse output information module, data output interface and power circuit; The data acquisition single-chip microcomputer that is connected with power circuit links to each other with analog to digital conversion circuit, sequential monitoring circuit, phase discriminant circuit, data presentation single-chip microcomputer, data processing single-chip microcomputer respectively and forms the loop; The data processing single-chip microcomputer that is connected with power circuit links to each other and forms the loop with open the door information and electric energy meter pulse output information module, data output interface of data acquisition single-chip microcomputer, metering cabinet respectively; The data presentation single-chip microcomputer that is connected with power circuit links to each other with data acquisition single-chip microcomputer, display respectively and forms the loop; Sensor circuit is connected with analog to digital conversion circuit one end with electronic switching circuit through data input modulate circuit.
(3) technique effect
Adopting the utility model is the electric energy measurement data monitor, for electrical energy consumption analysis and power utility check personnel provide real-time inquiry, can note abnormalities immediately and arrive site inspection immediately, contradiction is solved in bud, simultaneously, safeguard power supply enterprise's economic interests also for analyzing the stealing reason, moving back and mend the function that electric weight, criminal suit provide " black box ".
Four, description of drawings
Fig. 1 is an electric theory diagram of the present utility model.
Fig. 2 is data acquisition circuit figure of the present utility model.
Fig. 3 is data analysis circuit figure of the present utility model.
Fig. 4 is a data presentation electricity theory diagram of the present utility model.
Five, embodiment
Carefully connect the wire by the sign on the electric energy measurement data monitor instrument, data acquisition module is directly measured the voltage of the every phase of three-phase alternating current, the absolute amplitude of electric current, the phase differential between phase place and each phase voltage, the electric current, data such as the power of electric energy meter simultaneously.These data are delivered to the Data Management Analysis module.
The Data Management Analysis module is discerned wiring with software, it will receive voltage on its Ua terminal as the A phase voltage, and with as with reference to phasor, measure then and receive the voltage on other voltage terminals and the current terminal, the phase place (i.e. with phase differential) of electric current, discern other two phase voltages.Voltage is separate determine after, the phase place of each phase voltage, electric current relatively is not more than 60 ° a pair of voltage, electric current with angle and confirms as and belong to same phase, thereby determines that electric current is separate.Because the inwardness of each phase of three-phase and four-line circuit is as broad as long, separate A, B, C are artificial name purely, therefore electric energy measurement data monitor contraposition identification they, but can discern phase relation between them, and influence the electric energy metrical result also have only this phase relation.The voltage that the identification of electric energy measurement data monitor is received on its Ua terminal is exactly the A phase voltage, then according to other phase voltages, electric current therewith the phase relation of voltage determine that it is separate.That is to say that if the voltage of receiving on the Ua terminal is not the A phase voltage, the separate of each the phase voltage electric current that identifies so also all can be separate different with reality, but the relation of lead-lag is constant.For example, suppose the actual Ub of being of voltage that receives on the electric energy measurement data monitor Ua terminal, and be identified as Ua, actual Ua, Uc, Ia, Ib, Ic insert the electric energy measurement data monitor howsoever, all will be identified as Uc, Ub, Ic, Ia, Ib successively, separately all move one to leading direction.Determine three-phase voltage, current amplitude with the method, phase relation data between power data, three-phase voltage, the electric current, after the angle data between electric current phasor and the adjacent voltage phasor, software analysis contrast and these data of judgement with " three-phase alternating current rule ", draw correct and accurate and the error of data, analyze reason.
Data memory module is measurement data and the reason that analyzes, stores in the storer according to the regular hour and goes, as historical data base, for data presentation and data transmission usefulness.
Data disaply moudle shows the data that the electric energy measurement data monitor is gathered with LCD in real time at the scene, and analysis result, uses for the field staff.
Data transmission module is gone out data transmission by RS232 interface or RS485 interface or infrared interface or load management system interface or GPRS interface.
On housing, be inlaid with the operation display lamp that is connected with the data acquisition single-chip microcomputer for the duty that makes things convenient for device for marking.
Claims (7)
1, a kind of electric energy measurement data monitor, it is characterized in that: have the housing of display, it includes sensor circuit, data input modulate circuit, electronic switching circuit, analog to digital conversion circuit, sequential monitoring circuit, phase discriminant circuit, data acquisition single-chip microcomputer, data presentation single-chip microcomputer, data processing single-chip microcomputer, metering cabinet open the door information and electric energy meter pulse output information module, data output interface and power circuit; The data acquisition single-chip microcomputer that is connected with power circuit links to each other with analog to digital conversion circuit, sequential monitoring circuit, phase discriminant circuit, data presentation single-chip microcomputer, data processing single-chip microcomputer respectively and forms the loop; The data processing single-chip microcomputer that is connected with power circuit links to each other and forms the loop with open the door information and electric energy meter pulse output information module, data output interface of data acquisition single-chip microcomputer, metering cabinet respectively; The data presentation single-chip microcomputer that is connected with power circuit links to each other with data acquisition single-chip microcomputer, display respectively and forms the loop; Sensor circuit is connected with analog to digital conversion circuit one end with electronic switching circuit through data input modulate circuit.
2, electric energy measurement data monitor according to claim 1 is characterized in that: be inlaid with the operation display lamp that is connected with the data acquisition single-chip microcomputer on the housing.
3, electric energy measurement data monitor according to claim 1 is characterized in that: also contain the data-carrier store that is connected with the data processing single-chip microcomputer in the housing.
3, electric energy measurement data monitor according to claim 1 is characterized in that: its described data output interface is the GPRS module.
4, electric energy measurement data monitor according to claim 1 is characterized in that: its described data output interface is the RS232 interface.
5, electric energy measurement data monitor according to claim 1 is characterized in that: its described data output interface is the RS485 interface.
6, electric energy measurement data monitor according to claim 1 is characterized in that: its described data output interface is an infrared interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520140161 CN2854608Y (en) | 2005-12-22 | 2005-12-22 | Electric energy metering data monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520140161 CN2854608Y (en) | 2005-12-22 | 2005-12-22 | Electric energy metering data monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2854608Y true CN2854608Y (en) | 2007-01-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520140161 Expired - Fee Related CN2854608Y (en) | 2005-12-22 | 2005-12-22 | Electric energy metering data monitor |
Country Status (1)
| Country | Link |
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| CN (1) | CN2854608Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101566657B (en) * | 2008-04-22 | 2011-12-14 | 深圳浩宁达仪表股份有限公司 | Method and system for online metering and real-time monitoring of electric transmission line |
| CN102435802A (en) * | 2011-11-04 | 2012-05-02 | 上海建坤信息技术有限责任公司 | Energy-saving detection device and method for energy performance contracting |
| CN103293353A (en) * | 2012-12-28 | 2013-09-11 | 铨盛电子股份有限公司 | Intelligent type multifunctional digital electric meter and application judging method thereof |
| CN109932585A (en) * | 2017-12-18 | 2019-06-25 | 中国科学院沈阳自动化研究所 | The adaptive binary chop algorithm of smart grid-oriented neighborhood net malicious user positioning |
| CN110780261A (en) * | 2019-10-31 | 2020-02-11 | 南京国电南自电网自动化有限公司 | Method and system for checking electric quantity acquisition data |
-
2005
- 2005-12-22 CN CN 200520140161 patent/CN2854608Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101566657B (en) * | 2008-04-22 | 2011-12-14 | 深圳浩宁达仪表股份有限公司 | Method and system for online metering and real-time monitoring of electric transmission line |
| CN102435802A (en) * | 2011-11-04 | 2012-05-02 | 上海建坤信息技术有限责任公司 | Energy-saving detection device and method for energy performance contracting |
| CN103293353A (en) * | 2012-12-28 | 2013-09-11 | 铨盛电子股份有限公司 | Intelligent type multifunctional digital electric meter and application judging method thereof |
| CN109932585A (en) * | 2017-12-18 | 2019-06-25 | 中国科学院沈阳自动化研究所 | The adaptive binary chop algorithm of smart grid-oriented neighborhood net malicious user positioning |
| CN109932585B (en) * | 2017-12-18 | 2021-06-29 | 中国科学院沈阳自动化研究所 | Self-adaptive binary search algorithm for positioning malicious users of neighborhood network of smart power grid |
| CN110780261A (en) * | 2019-10-31 | 2020-02-11 | 南京国电南自电网自动化有限公司 | Method and system for checking electric quantity acquisition data |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |