CN103323637A - Low-voltage intelligent electric meter electricity-stealing checking device - Google Patents
Low-voltage intelligent electric meter electricity-stealing checking device Download PDFInfo
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- CN103323637A CN103323637A CN2013101950308A CN201310195030A CN103323637A CN 103323637 A CN103323637 A CN 103323637A CN 2013101950308 A CN2013101950308 A CN 2013101950308A CN 201310195030 A CN201310195030 A CN 201310195030A CN 103323637 A CN103323637 A CN 103323637A
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Abstract
The invention discloses a low-voltage intelligent electric meter electricity-stealing checking device. The low-voltage intelligent electric meter electricity-stealing checking device comprises an electricity-checking pen, a first tong-type ammeter and a second tong-type ammeter. The electricity-checking pen, the output end of the first tong-type ammeter and the output end of the second tong-type ammeter are respectively connected with an electricity-stealing analysis meter through wires, and the electricity-stealing analysis meter comprises a single chip microcomputer, a power source module, an alarm circuit and a display unit. The output end of the power source module is respectively connected with the single chip microcomputer, the alarm circuit and the display unit, the input end of the single chip microcomputer is respectively connected with the electricity-checking pen, the output end of the first tong-type ammeter and the output end of the second tong-type ammeter, and the output end of the single chip microcomputer is respectively connected with the alarm circuit and the display unit. The low-voltage intelligent electric meter electricity-stealing checking device is simple in structure, low in cost and high in safety and reliability, is applied to a low-voltage grid to conduct checking on whether a user of an intelligent electric meter has electricity-stealing behaviors or not, is capable of precisely judging whether the electricity-stealing behaviors happen or not so as to timely stop the electricity-stealing behaviors, and reduces losses of a power supply department.
Description
Technical field
The present invention relates to technical field of power systems, particularly a kind of device of in the low-voltage customer electricity filching behavior being checked of being applied to.
Background technology
Growing along with intelligent grid, the demand of the intelligent user terminal that matches with it also increases day by day, intelligent electric meter is a kind of novel electric energy meter, also be the intelligent terminal of intelligent grid, be mainly used in the low voltage electric network, except the function of measuring with traditional ammeter basic electricity amount, also has pre paid functionality, need not manual metering, the inconvenience of having avoided manual metering to bring to the user has solved the problem of difficult charge simultaneously.On this basis, intelligent electric meter also has hardware clock and complete communication interface for adapting to intelligent grid, and reliability and security all improve greatly, meet energy conservation and environment protection.
Yet indivedual electricity consumers are for seeking undue profits, and electricity filching behavior remains incessant after repeated prohibition.Early stage anti-theft electricity technology mainly seals lacquer to the holding screw that is used for fastening live wire, zero line on the measuring apparatus, if the user has implemented electricity filching behavior, then can judge by judging that the envelope lacquer is whether destroyed; But nature takes place and comes off in the influence that is subjected to natural causes such as environment, weather owing to seal easily, causes the erroneous judgement of electricity filching behavior disconnected, for causing misunderstanding between electric company and the user, has not re-used at present, and this just provides the stealing basis for the stealing user.Use at present more also be for comparatively dangerous stealing electricity method be before intelligent electric meter directly lead-in wire, the leading-out terminal of intelligent electric meter exchange zero line and live wire wiring position, revise the intelligent electric meter internal wiring or cut off the various methodologies such as outside line of ammeter, its purpose namely is to make electric current not pass through intelligent electric meter, reach the purpose of stealing, for power supply department brings greater loss.
Summary of the invention
The technical issues that need to address of the present invention provide a kind ofly can look into electricity filching device to the intelligent electric meter that electricity filching behavior is accurately judged, effectively prevents the generation of illegal stealing electricity phenomenon, for power supply department is reduced the loss.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is as follows.
The low-voltage intelligent ammeter is looked into electricity filching device, comprise that the output terminal of described electroscope, first clamp on amperemeter and second clamp on amperemeter is connected the stealing analyser by lead respectively for differentiating whether correct electroscope and be respectively applied to measure first clamp on amperemeter and second clamp on amperemeter that the intelligent electric meter leading-out terminal flows through live wire current value and neutral line current value of intelligent electric meter live wire wiring; Described stealing analyser comprises single-chip microcomputer, power module and the warning circuit that is arranged in the insulation crust, the outer face of insulation crust is provided with for the display unit that shows electricity filching behavior, the output terminal of described power module is connected with single-chip microcomputer, warning circuit and display unit respectively, the input end of single-chip microcomputer is connected with electroscope, first clamp on amperemeter and the output terminal of second clamp on amperemeter respectively, and the output terminal of single-chip microcomputer is connected with display unit with warning circuit respectively.
The concrete structure of described display unit is: described display unit comprises and is arranged on the insulation crust outer face first charactron that is used for showing the live wire current value, is used for showing second charactron of neutral line current value and the live wire pilot lamp that is used for showing intelligent electric meter leading-out terminal live wire wiring state that described first charactron, second charactron and live wire pilot lamp are connected with the output terminal of single-chip microcomputer respectively.
The improvement of described display unit is: described display unit comprises also and is arranged on the insulation crust outer face display screen that is used for showing the stealing state that the input end of described display screen connects the output terminal of single-chip microcomputer.
The improvement of described stealing analyser is: described stealing analyser comprises also with intelligent electric meter and carries out the interface unit of data transmission by 485 communication modes that the output terminal of interface unit connects the input end of single-chip microcomputer.
The concrete structure of described warning circuit is: described warning circuit comprises alarm lamp and the hummer that is arranged on the insulation crust outer face, and the input end of described alarm lamp and hummer is connected with the output terminal of single-chip microcomputer respectively.
Because the technical progress of having adopted technique scheme, the present invention to obtain is as follows.
The present invention is simple in structure, and is with low cost, the safe reliability height, be applied in the low voltage electric network whether the user who uses intelligent electric meter is existed checking of electricity filching behavior, and can judge accurately whether electricity filching behavior takes place, in order in time prevent, reduced the loss of power supply department.
Description of drawings
Fig. 1 is structured flowchart of the present invention;
Fig. 2 is the front view of insulation crust of the present invention.
Wherein: 1. first clamp on amperemeter, 2. second clamp on amperemeter, 3. electroscope, 4. stealing analyser, 41. single-chip microcomputers, 42. power modules, 43. warning circuit, 431. alarm lamps, 432. hummers, 44. display unit, 441. first charactrons, 442. second charactrons, 443. live wire pilot lamp, 444. display screen, 45. interface units, 5. switch.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further details:
A kind of low-voltage intelligent ammeter is looked into electricity filching device, and its structure comprises first clamp on amperemeter 1, second clamp on amperemeter 2, electroscope 3 and stealing analyser 4 as shown in Figure 1.Wherein: electroscope 3 is used for differentiating whether the wiring of intelligent electric meter live wire is correct, and first clamp on amperemeter 1 is used for measuring the current value that the intelligent electric meter leading-out terminal flows through live wire, and second clamp on amperemeter 2 is used for measuring the current value that the intelligent electric meter leading-out terminal flows through zero line; The output terminal of first clamp on amperemeter 1, second clamp on amperemeter 2, electroscope 3 is connected with the input end of stealing analyser 4 respectively, and the stealing analyser carries out the check whether intelligent electric meter exists electricity filching behavior according to the information of clamp on amperemeter and electroscope collection.
Stealing analyser 4 comprises single-chip microcomputer 41, power module 42, warning circuit 43, display unit 44 and interface unit 45, wherein single-chip microcomputer 41, power module 42, warning circuit 43 and interface unit 45 all are arranged in the insulation crust, and 44 of display units are arranged on the outer face of insulation crust.
The output terminal of power module 42 is connected with single-chip microcomputer 41, warning circuit 43 and display unit 44 respectively, for it provides working power.
Single-chip microcomputer 41 is mainly used in according to the information of gathering whether electricity filching behavior being carried out discriminatory analysis, the input end of single-chip microcomputer is connected with the output terminal of electroscope 3, first clamp on amperemeter 1, second clamp on amperemeter 2 and interface unit 45 respectively, and the output terminal of single-chip microcomputer 41 is connected with display unit 44 with warning circuit 43 respectively.
The present invention is mainly used in the inspection whether intelligent electric meter user in the 220V low voltage electric network exists electricity filching behavior, and its using method is as described below.
At first, electroscope is contacted with second binding post with first binding post of intelligent electric meter, check whether the live wire wiring state is correct, if the live wire pilot lamp is lighted, shows that then wiring is correct; Do not work as the live wire pilot lamp, represent that then live wire and zero line connect instead, single-chip microcomputer judges that tentatively electricity filching behavior may take place.
Then, according to the testing result of above-mentioned steps, first clamp on amperemeter and second clamp on amperemeter are connected to respectively on live wire and the zero line, carry out reading of live wire current value and neutral line current value; First clamp on amperemeter and the second clamp on amperemeter detected current value are transferred to single-chip microcomputer by lead, and single-chip microcomputer shows by first charactron and second charactron after treatment, and judges whether the live wire current value is identical with the neutral line current value.
When live wire current value and neutral line current value numerical value differ big, can show that the user is using other zero lines and carrying out stealing.This moment, single-chip microcomputer was transferred to warning circuit with alarm command, the alarm lamp flicker, and hummer gives the alarm; Single-chip microcomputer intuitively shows the analysis and judgement result transmission to display screen simultaneously.
When the live wire current value equates with neutral line current value numerical value, but the current value that shows with intelligent electric meter is not simultaneously, can show that the user changes the intelligent electric meter internal circuit privately and carries out stealing, and the same, single-chip microcomputer sends alarm command to warning circuit.
Claims (5)
1. the low-voltage intelligent ammeter is looked into electricity filching device, it is characterized in that: comprise that the output terminal of described electroscope (3), first clamp on amperemeter (1) and second clamp on amperemeter (2) is connected stealing analyser (4) by lead respectively for differentiating whether correct electroscope (3) and be respectively applied to measure first clamp on amperemeter (1) and second clamp on amperemeter (2) that the intelligent electric meter leading-out terminal flows through live wire current value and neutral line current value of intelligent electric meter live wire wiring; Described stealing analyser (4) comprises the single-chip microcomputer (41) that is arranged in the insulation crust, power module (42) and warning circuit (43), the outer face of insulation crust is provided with for the display unit (44) that shows electricity filching behavior, the output terminal of described power module (42) respectively with single-chip microcomputer (41), warning circuit (43) and display unit (44) connect, the input end of single-chip microcomputer (41) respectively with electroscope (3), first clamp on amperemeter (1) is connected with the output terminal of second clamp on amperemeter (2), and the output terminal of single-chip microcomputer (41) is connected with display unit (44) with warning circuit (43) respectively.
2. low-voltage intelligent ammeter according to claim 1 is looked into electricity filching device, it is characterized in that: described display unit (44) comprises and is arranged on the insulation crust outer face first charactron (441) that is used for showing the live wire current value, is used for showing second charactron (442) of neutral line current value and the live wire pilot lamp (443) that is used for showing intelligent electric meter leading-out terminal live wire wiring state that described first charactron (441), second charactron (442) and live wire pilot lamp (443) are connected with the output terminal of single-chip microcomputer (41) respectively.
3. low-voltage intelligent ammeter according to claim 2 is looked into electricity filching device, it is characterized in that: described display unit (44) comprises also and is arranged on the insulation crust outer face display screen (444) that is used for showing the stealing state that the input end of described display screen (444) connects the output terminal of single-chip microcomputer (41).
4. low-voltage intelligent ammeter according to claim 1 is looked into electricity filching device, it is characterized in that: described stealing analyser (4) comprises also with intelligent electric meter and carries out the interface unit (45) of data transmission by 485 communication modes that the output terminal of interface unit (45) connects the input end of single-chip microcomputer (41).
5. low-voltage intelligent ammeter according to claim 1 is looked into electricity filching device, it is characterized in that: described warning circuit (43) comprises alarm lamp (431) and the hummer (432) that is arranged on the insulation crust outer face, and the input end of described alarm lamp (431) and hummer (432) is connected with the output terminal of single-chip microcomputer (41) respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101950308A CN103323637A (en) | 2013-05-23 | 2013-05-23 | Low-voltage intelligent electric meter electricity-stealing checking device |
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| CN2013101950308A CN103323637A (en) | 2013-05-23 | 2013-05-23 | Low-voltage intelligent electric meter electricity-stealing checking device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911345A (en) * | 2016-04-26 | 2016-08-31 | 上海电机学院 | Ammeter system capable of preventing power theft |
| CN106324553A (en) * | 2016-10-10 | 2017-01-11 | 国网冀北电力有限公司唐山供电公司 | Device and method for rapidly seeking fault electric energy meter |
| CN108562773A (en) * | 2018-04-13 | 2018-09-21 | 漳州科能电器有限公司 | A kind of intelligent electric meter electricity anti-theft system |
| CN109188039A (en) * | 2018-09-28 | 2019-01-11 | 国网重庆市电力公司电力科学研究院 | A kind of intelligent meter tail of opposing electricity-stealing with communication function |
| CN110596438A (en) * | 2019-10-31 | 2019-12-20 | 国网河南省电力公司济源供电公司 | Intelligent ammeter anti-electricity-stealing tester |
| CN114002469A (en) * | 2021-11-03 | 2022-02-01 | 国网四川省电力公司成都供电公司 | Electricity stealing detection method and device and electricity stealing detector |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911345A (en) * | 2016-04-26 | 2016-08-31 | 上海电机学院 | Ammeter system capable of preventing power theft |
| CN106324553A (en) * | 2016-10-10 | 2017-01-11 | 国网冀北电力有限公司唐山供电公司 | Device and method for rapidly seeking fault electric energy meter |
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| CN109188039A (en) * | 2018-09-28 | 2019-01-11 | 国网重庆市电力公司电力科学研究院 | A kind of intelligent meter tail of opposing electricity-stealing with communication function |
| CN110596438A (en) * | 2019-10-31 | 2019-12-20 | 国网河南省电力公司济源供电公司 | Intelligent ammeter anti-electricity-stealing tester |
| CN114002469A (en) * | 2021-11-03 | 2022-02-01 | 国网四川省电力公司成都供电公司 | Electricity stealing detection method and device and electricity stealing detector |
| CN114002469B (en) * | 2021-11-03 | 2023-10-03 | 国网四川省电力公司成都供电公司 | Method and device for detecting electricity theft and electricity theft detector |
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Application publication date: 20130925 |