CN203606408U - Electric energy metering device capable of preventing electricity larceny - Google Patents
Electric energy metering device capable of preventing electricity larceny Download PDFInfo
- Publication number
- CN203606408U CN203606408U CN201320806078.3U CN201320806078U CN203606408U CN 203606408 U CN203606408 U CN 203606408U CN 201320806078 U CN201320806078 U CN 201320806078U CN 203606408 U CN203606408 U CN 203606408U
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- chip microcomputer
- electric energy
- energy meter
- current transformer
- electricenergy
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Abstract
The utility model discloses an electric energy metering device capable of preventing electricity larceny. The electric energy metering device comprises a current transformer, an A/D conversion module, a single-chip microcomputer, an electric energy meter, a storage unit and relays, wherein the current transformer is connected with the input end of the single-chip microcomputer via the A/D conversion module, and the relays, the electric energy meter and the storage unit are all connected with the single-chip microcomputer. The power supply quantity at the electrical-network side measured by the current transformer is compared with the electric quantity at the user side measured by the electric energy meter, and if the difference between the quantities is large, an electricity-larceny behavior is determined, and the single-chip microcomputer stores data in an external storage chip. The single-chip microcomputer emits a control signal to enable that the relays disconnect a power supply loop between the electrical network and a user to stop power supply to the user. Thus, the goal of timely preventing electricity larceny is achieved, and according to the data in the FLASH chip, the quantity of larcenous electricity can be accurately known.
Description
Technical field
The utility model relates to family for electrical domain, particularly, relates to a kind of metrological device for electricenergy with function of preventing fraudulent.
Background technology
At present, in daily life, stealing mode and stealing technology are more and more brilliant, and existing anti-electricity-theft device can not be instant, electricity filching behavior are taken precautions against.
Utility model content
The purpose of this utility model is, for the problems referred to above, proposes a kind of metrological device for electricenergy with function of preventing fraudulent, to realize the advantage of instant electricity theft prevention behavior.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of metrological device for electricenergy with function of preventing fraudulent, comprise current transformer, A/D modular converter, single-chip microcomputer, electric energy meter, storage unit and relay, described current transformer is connected to the input end of single-chip microcomputer by A/D modular converter, described relay, electric energy meter, storage unit and relay are all connected with single-chip microcomputer.
Further, described single-chip microcomputer adopts AT89C51 single-chip microcomputer.
Further, described storage unit is FLASH exterior storage chip.
Further, the output terminal of described relay at least connects a load.
Further, described current transformer is arranged on the front end of transformer in electrical network, and described relay and electric energy meter are arranged on the rear end of transformer.
The technical solution of the utility model has following beneficial effect:
The technical solution of the utility model, user's side electric weight of measuring with electric energy meter by the grid side powering quantity that current transformer is measured is compared, and when as larger in difference, single-chip microcomputer is judged to be to occur electricity filching behavior, and single-chip microcomputer stores data into exterior storage chip.Single-chip microcomputer sends control signal simultaneously, and pilot relay disconnects the current supply circuit between electrical network and user, stops to customer power supply.Thereby reach the object of instant electricity theft prevention behavior.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the metrological device for electricenergy with function of preventing fraudulent described in the utility model embodiment.
In figure, 1-transformer front end; 2-transformer rear end.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for description and interpretation the utility model, and be not used in restriction the utility model.
As shown in Figure 1, a kind of metrological device for electricenergy with function of preventing fraudulent, comprise current transformer, A/D modular converter, single-chip microcomputer, electric energy meter, storage unit and relay, current transformer is connected to the input end of single-chip microcomputer by A/D modular converter, described relay, electric energy meter, storage unit and relay are all connected with single-chip microcomputer.
Wherein, single-chip microcomputer adopts AT89C51 single-chip microcomputer.Storage unit is FLASH exterior storage chip.The output terminal of relay at least connects a load.Current transformer is arranged on the front end of transformer in electrical network, and relay and electric energy meter are arranged on the rear end of transformer.The grid side powering quantity that single-chip microcomputer is measured current transformer is compared with power consumption with user's side that electric energy meter is measured, and comparative result is deposited in FLASH chip and stored, and can clearly know the concrete stealing electric weight of user.
Electrical network is linked into user side by transformer, between transformer and user side, be connected electric energy meter, user side connects the mode of a load by a relay, also can connect multiple loads by a relay, when single-chip microcomputer be checked through differ by more than setting value from the circuit signal of current transformer with from the electric quantity signal of electric energy meter time, just pilot relay deenergization, thus loaded work piece stopped, realizing real-time electricity theft prevention.
The technical solution of the utility model, utilizes single-chip microcomputer, the Novel anti-electricity-theft electric power meter of design.Have with low cost, robotization is high, intellectuality is strong, the advantages such as reliable operation, after application in batches, have played obvious power-steeling preventing effect.
Finally it should be noted that: the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although the utility model is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. a metrological device for electricenergy with function of preventing fraudulent, it is characterized in that, comprise current transformer, A/D modular converter, single-chip microcomputer, electric energy meter, storage unit and relay, described current transformer is connected to the input end of single-chip microcomputer by A/D modular converter, described relay, electric energy meter, storage unit and relay are all connected with single-chip microcomputer.
2. metrological device for electricenergy with function of preventing fraudulent according to claim 1, is characterized in that, described single-chip microcomputer adopts AT89C51 single-chip microcomputer.
3. metrological device for electricenergy with function of preventing fraudulent according to claim 1 and 2, is characterized in that, described storage unit is FLASH exterior storage chip.
4. metrological device for electricenergy with function of preventing fraudulent according to claim 3, is characterized in that, the output terminal of described relay at least connects a load.
5. metrological device for electricenergy with function of preventing fraudulent according to claim 3, is characterized in that, described current transformer is arranged on the front end of transformer in electrical network, and described relay and electric energy meter are arranged on the rear end of transformer.
6. metrological device for electricenergy with function of preventing fraudulent according to claim 1, is characterized in that, the grid side powering quantity that single-chip microcomputer is measured current transformer is compared with power consumption with user's side that electric energy meter is measured, and comparative result is deposited in FLASH chip and stored.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320806078.3U CN203606408U (en) | 2013-12-10 | 2013-12-10 | Electric energy metering device capable of preventing electricity larceny |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320806078.3U CN203606408U (en) | 2013-12-10 | 2013-12-10 | Electric energy metering device capable of preventing electricity larceny |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203606408U true CN203606408U (en) | 2014-05-21 |
Family
ID=50719073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320806078.3U Expired - Fee Related CN203606408U (en) | 2013-12-10 | 2013-12-10 | Electric energy metering device capable of preventing electricity larceny |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203606408U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105429022A (en) * | 2015-11-04 | 2016-03-23 | 国网山东昌乐县供电公司 | Power metering device prevented from being opened privately |
| CN105510661A (en) * | 2016-01-28 | 2016-04-20 | 山东思迪普电气有限公司 | Intelligent prepayment metering box |
| CN106771433A (en) * | 2015-11-23 | 2017-05-31 | 安徽圣享智能科技有限公司 | A kind of Multifunctional electric meter case |
| CN107132389A (en) * | 2017-05-09 | 2017-09-05 | 珠海瑞捷电气股份有限公司 | A kind of three-phase overhead power transmission anti-theft electricity technology |
| CN110988416A (en) * | 2019-12-25 | 2020-04-10 | 重庆华虹仪表有限公司 | Outdoor three-phase high-voltage electric energy meter |
-
2013
- 2013-12-10 CN CN201320806078.3U patent/CN203606408U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105429022A (en) * | 2015-11-04 | 2016-03-23 | 国网山东昌乐县供电公司 | Power metering device prevented from being opened privately |
| CN106771433A (en) * | 2015-11-23 | 2017-05-31 | 安徽圣享智能科技有限公司 | A kind of Multifunctional electric meter case |
| CN105510661A (en) * | 2016-01-28 | 2016-04-20 | 山东思迪普电气有限公司 | Intelligent prepayment metering box |
| CN107132389A (en) * | 2017-05-09 | 2017-09-05 | 珠海瑞捷电气股份有限公司 | A kind of three-phase overhead power transmission anti-theft electricity technology |
| CN110988416A (en) * | 2019-12-25 | 2020-04-10 | 重庆华虹仪表有限公司 | Outdoor three-phase high-voltage electric energy meter |
| CN110988416B (en) * | 2019-12-25 | 2022-03-15 | 重庆华虹仪表有限公司 | Outdoor three-phase high-voltage electric energy meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140521 Termination date: 20191210 |