CN102707108A - Device and method resisting strong magnetic interference of electric energy meter - Google Patents
Device and method resisting strong magnetic interference of electric energy meter Download PDFInfo
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- CN102707108A CN102707108A CN2012101257907A CN201210125790A CN102707108A CN 102707108 A CN102707108 A CN 102707108A CN 2012101257907 A CN2012101257907 A CN 2012101257907A CN 201210125790 A CN201210125790 A CN 201210125790A CN 102707108 A CN102707108 A CN 102707108A
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- electric energy
- energy meter
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/061—Details of electronic electricity meters
- G01R22/066—Arrangements for avoiding or indicating fraudulent use
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Abstract
The invention discloses a device and a method for resisting strong magnetic interference of an electric energy meter. The device comprises an power utilization information collection terminal and a reed relay, wherein a normally-open type reed relay is connected at one switching amount input end or more switching amount input ends of the power utilization information collection terminal; when the reed relay has an external interference magnetic field, the relay is closed; and a closing signal of the relay is detected by the power utilization information collection terminal, an alarm is sent out. Therefore, the anti-electricity-stealing function of a power user is realized.
Description
Technical field
The present invention relates to the electrical energy metering technology, relate in particular to the anti-strong magnetic interference device and method of a kind of electric energy meter.
Background technology
In the current power user, for the bigger large user of power consumption, power supply enterprise is through the real-time electricity consumption situation of three-phase electric energy meter metering user.The real time execution situation and the electrical energy metering information of electric energy meter is gathered by power supply enterprise through the power information acquisition terminal; And through the power information acquisition system transmission real-time information of wireless communication networks, thereby realize Real-time Monitor Management to large user's electricity consumption situation to power supply enterprise.
In current user, exist the normal counting that disturbs electric energy meter through strong magnet, make the stealing electricity phenomenon of the few quantity calculation of electric energy meter, cause very big loss to power supply enterprise.For example: the user is installed in strong magnet in the concealed location or electric energy meter of batch meter, and management of power use personnel are difficult for finding.
Summary of the invention
In view of this; Fundamental purpose of the present invention is to provide a kind of electric energy meter to prevent strong magnetic interference device and method; Through dry-reed relay and the ruuning situation of monitoring electric energy meter in real time are installed on the power information acquisition terminal; Situation to there being high-intensity magnetic field to disturb detects, and sends alarm signal after this situation being fed back in real time the power information acquisition system of power supply enterprise, thereby realizes anti-stealing electricity function.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of electric energy meter is prevented strong magnetic interference device, comprises the power information acquisition terminal, at some or a plurality of switching value input ends access open type dry-reed relays of this power information acquisition terminal.
Wherein: said dry-reed relay when external disturbance magnetic field is arranged, relay closes.
When said dry-reed relay closure reaches the predefined delay duration of power information acquisition terminal, send alarm event by this power information acquisition terminal.
Said dry-reed relay; Two or three reed contacts that soft magnetic material is processed are arranged; Be encapsulated in vacuum or the inert gas filled glass tube, the leaf end of parallel encapsulation is overlapping in this glass tube, and leaves certain interval or be in contact with one another with what constitute and often open or normally closed contact.
The method of the anti-strong magnetic interference of a kind of electric energy meter, this method comprises:
A, at the employed electric power meter end of user installing dry-reed relay, monitor the contacts status of said dry-reed relay through user's power information acquisition terminal;
B, if exist to disturb the high-intensity magnetic field of the normal metering of electric energy meter near the electric energy meter, the dry-reed relay closing of contact then, this power information acquisition terminal detects this signal, promptly sends alarm signal.
Wherein, step B further comprises: when said dry-reed relay closure time reached the predefined delay duration of power information acquisition terminal, this power information acquisition terminal sent alarm event.
Electric energy meter provided by the present invention is prevented strong magnetic interference device and method, has the following advantages:
Switching value input end to user's power information acquisition terminal inserts dry-reed relay; Through the adhesive of monitoring contact in this relay, situation about opening; Grasp in real time near the situation of the high-intensity magnetic field that whether occurs disturbing the normal metering of electric energy meter the electric energy meter, when the closing of contact of dry-reed relay, user's power information acquisition terminal detects the relay contact closure signal; Can send alarm to power supply enterprise, thereby realize anti-stealing electricity function power consumer.Simultaneously, this method has also that implementation method is simple, and improvement cost is little, the advantage that is easy to promote.
Description of drawings
Fig. 1 is the connection terminal synoptic diagram of existing power information acquisition terminal;
Fig. 2 is the basic structure synoptic diagram of dry-reed relay;
Fig. 3 is the principle schematic that power information acquisition terminal of the present invention inserts dry-reed relay.
Embodiment
Below in conjunction with accompanying drawing and embodiments of the invention method of the present invention is done further detailed explanation.
Current, user's electric energy meter and power information acquisition terminal have been installed for the large user by power supply enterprise, in order to the electricity consumption situation of metering with real-time supervisory user.
Fig. 1 is the connection terminal synoptic diagram of existing power information acquisition terminal; As shown in Figure 1, clearly definition is done to the connection terminal of power information acquisition terminal usually by power supply enterprise, wherein; The switching value input is in order to monitor outside quantity of state input, and electricity condition is used at the scene of monitor user '.
Fig. 2 is the basic structure synoptic diagram of dry-reed relay, and is as shown in Figure 2, and this dry-reed relay comprises magnetic red sheet, glass tube and contact part, is vacuum or be filled with inert gas in the glass tube, like helium, nitrogen.
Dry-reed relay; Usually by two or three reed contacts that soft magnetic material is made; Be encapsulated in the glass tube that is filled with inert gas or vacuum, the leaf end of parallel encapsulation is overlapping in glass tube, and leaves certain interval or be in contact with one another often opening or normally closed contact with the formation switch.
Method of the present invention is: the some switching value input ends at electric energy meter side power information acquisition terminal insert the open type dry-reed relay; As magnetic field near tongue tube; The magnetic field that coil electricity on tongue tube forms makes the reed magnetization, and the contact part of reed will be by magnetic attraction.When attractive force during greater than the elastic force of spring, the contact can be by adhesive, and when magnetic force was reduced to a certain degree, the contact was then opened by the elastic force of spring.Therefore; Tongue tube can be used as a kind of circuit switche that utilizes field signal to control, and has all obtained good application in that mobile phone, programme-controlled exchange, duplicating machine, washing machine, refrigerator, camera, disinfection cupboard, door magnetic, window magnetic, electromagnetic relay, electronic scale, liquid level gauge, gas meter, water meter are medium.
Fig. 3 is the principle schematic that power information acquisition terminal of the present invention inserts dry-reed relay, and is as shown in Figure 3, this reed switch relay placed the installed position of electric energy meter; When electric energy meter has external disturbance magnetic field; Relay closes, this state delay time of definition in acquisition terminal, as when reaching 30 seconds; Thinking has electricity filching behavior to take place, and sends alarm event.Power information acquisition system (main website) just can receive this alarm event, and like this, power supply enterprise will grasp the situation of stealing, adopts strong magnetic interference to carry out the effect of stealing thereby reach real-time monitor user '.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.
Claims (6)
1. the anti-strong magnetic interference device of electric energy meter comprises the power information acquisition terminal, it is characterized in that, at some or a plurality of switching value input ends access open type dry-reed relays of this power information acquisition terminal.
2. electric energy meter according to claim 1 is prevented strong magnetic interference device, it is characterized in that, said dry-reed relay when external disturbance magnetic field is arranged, relay closes.
3. electric energy meter according to claim 1 and 2 is prevented strong magnetic interference device, it is characterized in that, when said dry-reed relay closure time reaches the predefined delay duration of power information acquisition terminal, sends alarm event by this power information acquisition terminal.
4. according to the anti-strong magnetic interference device of each described electric energy meter of claim 1 to 3; It is characterized in that; Said dry-reed relay has two or three reed contacts that soft magnetic material is processed, and is encapsulated in vacuum or the inert gas filled glass tube; The leaf end of parallel encapsulation is overlapping in this glass tube, and leaves certain interval or be in contact with one another with what constitute and often open or normally closed contact.
5. the method for the anti-strong magnetic interference of an electric energy meter is characterized in that this method comprises:
A, at the employed electric power meter end of user installing dry-reed relay, monitor the contacts status of said dry-reed relay through user's power information acquisition terminal;
B, if exist to disturb the high-intensity magnetic field of the normal metering of electric energy meter near the electric energy meter, the dry-reed relay closing of contact then, this power information acquisition terminal detects relay closure signal, promptly sends alarm.
6. the method for the anti-strong magnetic interference of electric energy meter according to claim 5; It is characterized in that; Step B further comprises: when said dry-reed relay closure time reached the predefined delay duration of power information acquisition terminal, this power information acquisition terminal sent alarm event.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101257907A CN102707108A (en) | 2012-04-26 | 2012-04-26 | Device and method resisting strong magnetic interference of electric energy meter |
| PCT/CN2013/073629 WO2013159635A1 (en) | 2012-04-26 | 2013-04-02 | Strong magnetic interference prevention device for electric energy meter and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101257907A CN102707108A (en) | 2012-04-26 | 2012-04-26 | Device and method resisting strong magnetic interference of electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102707108A true CN102707108A (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101257907A Pending CN102707108A (en) | 2012-04-26 | 2012-04-26 | Device and method resisting strong magnetic interference of electric energy meter |
Country Status (2)
| Country | Link |
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| CN (1) | CN102707108A (en) |
| WO (1) | WO2013159635A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013159635A1 (en) * | 2012-04-26 | 2013-10-31 | 河北省电力公司电力科学研究院 | Strong magnetic interference prevention device for electric energy meter and method thereof |
| CN103954815A (en) * | 2014-04-30 | 2014-07-30 | 国网上海市电力公司 | Electricity larceny prevention check main machine |
| CN104237590A (en) * | 2014-09-26 | 2014-12-24 | 国家电网公司 | Active electricity larceny prevention device and method aiming at magnetic electricity larceny compensation metering |
| CN104252751A (en) * | 2013-06-26 | 2014-12-31 | 天津赛思科技发展有限公司 | Anti-magnetic-disturbance alarm device of power metering box |
| CN104916060A (en) * | 2015-04-30 | 2015-09-16 | 国家电网公司 | Alarm method for preventing power theft through strong magnetic field |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698567A (en) * | 2013-12-03 | 2014-04-02 | 国家电网公司 | Image recognition type electricity stealing prevention device |
| CN109116073A (en) * | 2018-08-28 | 2019-01-01 | 云南电网有限责任公司电力科学研究院 | One kind is opposed electricity-stealing monitoring method, apparatus and system |
| CN111830297B (en) * | 2020-06-05 | 2023-05-23 | 宁波三星医疗电气股份有限公司 | Anti-interference method of electric energy meter under 0.5mT power frequency magnetic field |
| CN113030541A (en) * | 2021-04-21 | 2021-06-25 | 广东电网有限责任公司计量中心 | Intelligent Internet of things electric meter management system and method |
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| JP2003014783A (en) * | 2002-04-25 | 2003-01-15 | Matsushita Electric Ind Co Ltd | Metering device |
| JP2008002876A (en) * | 2006-06-21 | 2008-01-10 | Fuji Electric Systems Co Ltd | Current sensor and electronic watthour meter |
| CN201152883Y (en) * | 2008-01-09 | 2008-11-19 | 任昌兆 | Electricity meter box with shield for preventing strong magnetism electricity-theft |
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| US5010335A (en) * | 1988-11-29 | 1991-04-23 | Schlumberger Industries, Inc. | Optical port multiplexer for electric metering equipment |
| US5486755A (en) * | 1994-12-27 | 1996-01-23 | General Electric Company | Electronic meter having anti-tampering magnetic shield |
| CN2577294Y (en) * | 2002-10-21 | 2003-10-01 | 车玉姝 | Monitor for preventing ilegal-use of electricity |
| CN2593198Y (en) * | 2002-12-23 | 2003-12-17 | 张洪羿 | Full-function power-supply monitoring apparatus |
| CN102707108A (en) * | 2012-04-26 | 2012-10-03 | 河北省电力研究院 | Device and method resisting strong magnetic interference of electric energy meter |
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2012
- 2012-04-26 CN CN2012101257907A patent/CN102707108A/en active Pending
-
2013
- 2013-04-02 WO PCT/CN2013/073629 patent/WO2013159635A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003014783A (en) * | 2002-04-25 | 2003-01-15 | Matsushita Electric Ind Co Ltd | Metering device |
| JP2008002876A (en) * | 2006-06-21 | 2008-01-10 | Fuji Electric Systems Co Ltd | Current sensor and electronic watthour meter |
| CN201152883Y (en) * | 2008-01-09 | 2008-11-19 | 任昌兆 | Electricity meter box with shield for preventing strong magnetism electricity-theft |
| CN201576030U (en) * | 2009-12-10 | 2010-09-08 | 安徽省电力公司巢湖供电公司 | Electric energy metering box capable of preventing high-intensity magnetic electric larceny |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013159635A1 (en) * | 2012-04-26 | 2013-10-31 | 河北省电力公司电力科学研究院 | Strong magnetic interference prevention device for electric energy meter and method thereof |
| CN104252751A (en) * | 2013-06-26 | 2014-12-31 | 天津赛思科技发展有限公司 | Anti-magnetic-disturbance alarm device of power metering box |
| CN103954815A (en) * | 2014-04-30 | 2014-07-30 | 国网上海市电力公司 | Electricity larceny prevention check main machine |
| CN104237590A (en) * | 2014-09-26 | 2014-12-24 | 国家电网公司 | Active electricity larceny prevention device and method aiming at magnetic electricity larceny compensation metering |
| CN104237590B (en) * | 2014-09-26 | 2018-01-12 | 国家电网公司 | A kind of active anti-electricity-theft device and the method for strong magnetic stealing compensation measurement |
| CN104916060A (en) * | 2015-04-30 | 2015-09-16 | 国家电网公司 | Alarm method for preventing power theft through strong magnetic field |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013159635A1 (en) | 2013-10-31 |
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Owner name: HEBEI ELECTRIC POWER CONSTRUCTION + ADJUSTMENT RES Free format text: FORMER OWNER: HEBEI ELECTRIC POWER CONSTRUCTION + ADJUSTMENT RESEARCH INSTITUTE Effective date: 20130129 Owner name: HEBEI ELECTRIC POWER CORPORATION ELECTRIC POWER RE Free format text: FORMER OWNER: HEBEI ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20130129 |
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Effective date of registration: 20130129 Address after: 050021 No. 238 South Sports street, Hebei, Shijiazhuang Applicant after: Electric Power Research Institute of Hebei Electric Power Corporation Applicant after: Hebei Electric Power Construction & Adjustment Research Institute Applicant after: State Grid Corporation of China Address before: 050021 No. 238 South Sports street, Hebei, Shijiazhuang Applicant before: Hebei Electric Power Research Institute Applicant before: Hebei Electric Power Construction & Adjustment Research Institute |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20121003 |