CN203798881U - Electricity stealing prevention system based on electric energy meter - Google Patents
Electricity stealing prevention system based on electric energy meter Download PDFInfo
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- CN203798881U CN203798881U CN201420200648.9U CN201420200648U CN203798881U CN 203798881 U CN203798881 U CN 203798881U CN 201420200648 U CN201420200648 U CN 201420200648U CN 203798881 U CN203798881 U CN 203798881U
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- magnetic field
- electric energy
- electricity stealing
- energy meter
- electronic lock
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- 230000005611 electricity Effects 0.000 title claims abstract description 42
- 230000002265 prevention Effects 0.000 title abstract description 9
- 238000001514 detection method Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 2
- 230000006399 behavior Effects 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000012552 review Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000003405 preventing effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Abstract
The utility model relates to an electricity stealing prevention system based on an electric energy meter. The electricity stealing prevention system comprises an electronic lock, a magnetic field detector and a single chip microcomputer, wherein the electronic lock comprises an RF transmitting module 1, an receiving module 2, an EEPROM3, a motor driving circuit 4 and an unlocking motor 5; the magnetic field detector comprises a magnetic field pick-up circuit and an amplifier; the RF receiving module 2, the EEPROM3 and the motor driving circuit 4 are respectively connected with the single chip microcomputer 6; and the magnetic pick-up circuit is connected with the single chip microcomputer 6 through the amplifier. The electricity stealing prevention system judges electricity stealing behavior by adopting the methods of magnetic field detection and the electronic lock, and prompts the occurrence of electricity stealing behavior; the electricity stealing prevention system can detect whether the electric energy meter is affected by magnetic field interference, so as to determine whether an electricity stealing behavior exists; the electricity stealing prevention system can realize the detection of multi-directional magnetic fields; the electricity stealing prevention system can prevent the electric energy meter from being unlocked illegally through the electronic lock, and can record each unlocking behavior; and the electricity stealing prevention system can realize the unlocking of the electronic lock of the electric energy meter through a handheld machine, and is convenient for the staff to inspect.
Description
Technical field
The utility model relates to a kind of electricity anti-theft system, specifically relates to a kind of electricity anti-theft system based on electric energy meter.
Background technology
Along with economic fast development, electric demand is increased year by year, the continuous expansion in power sale market, for guaranteeing the economic interests of electricity market, the generation of necessary electricity theft prevention case.
Current measures of anti-stealing electricity is with a large amount of manpower and materials investigation circuits, checks measuring apparatus.But stealing problem is not fundamentally improved all the time.First, along with scientific and technical fast development, new electricity filching means constantly occurs, and technology is more advanced, and method is more hidden, and gimmick is more professional, changes more multiterminal.Secondly, stealing presents the feature of ubiquity: resident's stealing electricity phenomenon is serious, and state-owned enterprises and institutions' stealing rate rises rapidly, and in self-employed entrepreneur, the private enterprise, stealing ratio is quite high.The 3rd, though stealing electricity phenomenon outwardness, because electric energy is a kind of invisible commodity, it can only embody value by electric power meter, and therefore, power-steeling quantity often mixes with line loss, is difficult to statistics and recovery.Finally, along with expanding economy, urban and rural residents generally carry out " Every household has an ammeter " system, there is no under summary table system between resident the objective effect of supervision mutually, have in fact strengthened the difficulty of opposing electricity-stealing.
Therefore, anti-electricity-theft work is faced with difficult situation, and traditional measures of anti-stealing electricity has been difficult to reply, need to design new anti-electricity-theft scheme, strives for better power-steeling preventing effect.
Utility model content
For the deficiencies in the prior art, the utility model provides a kind of electricity anti-theft system based on electric energy meter.Electronic lock in the utility model electricity anti-theft system and palm machine coordinate the illegal behavior of unpacking that prevents from privately opening electric energy meter that realizes, magnetic field detector in electricity anti-theft system can be identified the interference that whether is subject to magnetic field, and this technology can prevent by magnetic interference and illegally open the electricity filching behavior that electric energy meter is implemented.
The purpose of this utility model is to adopt following technical proposals to realize:
Based on an electricity anti-theft system for electric energy meter, its improvements are, described system comprises electronic lock, magnetic field detector and single-chip microcomputer;
Described electronic lock comprises radiofrequency emitting module 1, Receiver Module 2, EEPROM3, motor-drive circuit 4 and the motor 5 of unblanking;
Described magnetic field detector comprises magnetic field pick-up circuit and amplifier;
Described Receiver Module 2, EEPROM3 and motor-drive circuit 4 are connected with single-chip microcomputer 6 respectively;
Described magnetic field pick-up circuit is connected with single-chip microcomputer by amplifier.
Preferably, described electronic lock is connected with palm machine.
Preferably, in described electronic lock, in radiofrequency emitting module 1 and Receiver Module 2 and palm machine, radio-frequency card communicates.
Preferably, described motor-drive circuit 4 is connected with the motor 5 of unblanking.
Preferably, described single-chip microcomputer is AT89C2051 single-chip microcomputer.
Compared with the prior art, the beneficial effects of the utility model are:
The utility model utilizes magnetic field detection and two kinds of modes of electronic lock to judge electricity filching behavior, and electricity filching behavior appears in prompting.
The utility model can detect electric energy meter and whether be subject to magnetic interference, to judge whether to exist electricity filching behavior.
The utility model can be realized the detection to multi-direction magnetic field.
The utility model can prevent the illegal unlatching to ammeter by electronic lock, records game clock behavior each time.
And realize the unlatching to electric energy meter electronics lock by palm machine, facilitate staff to check.
The utility model can be all kinds of electric energy meters anti-electricity-theft means is provided.
Brief description of the drawings
A kind of electricity anti-theft system based on electric energy meter that Fig. 1 provides for the utility model.
Fig. 2 is a kind of enforcement schematic diagram that adopts H bridge circuit to drive direct current generator of motor-drive circuit in electronic lock.
Fig. 3 is that the one of magnetic field pick-up circuit is implemented schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
A kind of electricity anti-theft system based on electric energy meter of the utility model comprises magnetic field detector, electronic lock and single-chip microcomputer.Magnetic field detector is made up of orthogonal magnetic field pick-up circuit 7 and magnetic field pick-up circuit 10.Magnetic field pick-up circuit 7 in magnetic field detector and the output signal of magnetic field pick-up circuit 10 are adjusted via amplifier 8 and amplifier 9 respectively.Electronic lock module comprises radiofrequency emitting module 1, Receiver Module 2, EEPROM3, motor-drive circuit 4 and the motor 5 of unblanking.
In electronic lock module, Receiver Module 2, EEPROM3 and motor-drive circuit 4 parts are connected with single-chip microcomputer 6.Magnetic field detector can detect electric energy meter and whether be subject to the interference in magnetic field, and whether electronic lock is that legal authorization judges whether to unpack by the information identification of reading radio-frequency card in palm machine, and single-chip microcomputer is collected magnetic field detector and electronic lock information, and communicates by letter with control module.
Wherein, in single-chip microcomputer 6 received RF receiver modules, slap canned data comparison in the identifying information of machine and EEPROM3, in electronic lock part, radiofrequency emitting module 1 just sends signal every the time of one section of setting, when have palm machine near time, Receiver Module 2 can receive the signal of reflection, notice single-chip microcomputer 6.In the signal being reflected back, contain the identifying information of palm machine.If this information conforms to canned data in EEPROM3, drive the motor 5 of unblanking to unblank by motor-drive circuit 4; If canned data is not inconsistent in this information and EEPROM3, single-chip microcomputer 6 sends stealing alarm to control module.
In magnetic field detector, magnetic field pick-up circuit 7 and magnetic field pick-up circuit 10 are converted into electric signal by two magnetic field intensitys of orthogonal directions respectively, these two electric signal are enlarged into by amplifier 8 and amplifier 9 level that suitable single-chip microcomputer 6 is inputted respectively, first that incoming level is synthetic in single-chip microcomputer 6, obtain the expression value of total magnetic intensity, single-chip microcomputer judges that according to this expression value ammeter is whether in high-intensity magnetic field, and if so, single-chip microcomputer 6 notifies control module to send stealing alarm.
Wherein, when in magnetic field detector or electronic lock, any occurs when abnormal, electricity anti-theft system is thought and is had electricity filching behavior, notifies immediately control module to send warning.
Wherein, in the time not there is not electricity filching behavior, can cycle or manual command detection logout.Palm machine can legally be opened the electronic lock module in electric energy meter, is convenient to staff's field review and whether has electricity filching behavior.
Wherein, the utility model can judge whether to exist electricity filching behaviors such as pasting permanent magnet, electromagnetic field of high frequency impact by magnetic field detector.
Wherein, the utility model can utilize electronic lock detection whether to occur illegal unpacking behavior, and record is unpacked behavior each time to check.
Wherein, the utility model can be opened by the palm machine electronic lock of electric energy meter, facilitates staff's field review, avoids checking while adopting traditional lead sealing form the destruction of electric energy meter inside to electric energy meter.
Embodiment
Electronic lock comprises that TX125L module (comprise radio-frequency transmissions and accept function), EEPROM24C256, motor drive H bridge circuit, direct current generator and single chip computer AT 89C2051.EEPROM24C256 is connected by the I2C interface of simulation with AT89C2051.In the time occurring unpacking behavior, single chip computer AT 89C2051 judges that whether the information of TX125L module reception is identical with canned data in EEPROM24C256, if identical AT89C2051 sends signal to motor-drive circuit, drive motor is unblanked, and AT89C2051 sends to upper strata control module the report of unblanking simultaneously.If the information receiving is different from canned data, AT89C2051 sends to upper strata control module the alarm of unblanking.In the time of needs hand inspection, use the palm machine that comprises S50 radio-frequency card to open electronic lock, record the event of unblanking simultaneously.
Magnetic field pick-up circuit is made up of magnetic induction coil, and two magnetic field pick-up circuits are mutually orthogonal, in the time there is magnetic field, in two magnetic induction coils, induces respectively electric signal, is adjusted into appropriate signals is respectively input in AT89C2051 through amplifier LF155.The signal of comprehensive two amplifiers of AT89C2051 can calculate the signal that represents true field, if exceed setting threshold think exist high-intensity magnetic field disturb, there is stealing electricity phenomenon, AT89C2051 sends high-intensity magnetic field stealing alarm to upper strata control module.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit, although the utility model is had been described in detail with reference to above-described embodiment, those of ordinary skill in the field are to be understood that: still can modify or be equal to replacement embodiment of the present utility model, and do not depart from any amendment of the utility model spirit and scope or be equal to replacement, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (5)
1. the electricity anti-theft system based on electric energy meter, is characterized in that, described system comprises electronic lock, magnetic field detector and single-chip microcomputer;
Described electronic lock comprises radiofrequency emitting module (1), Receiver Module (2), EEPROM (3), motor-drive circuit (4) and the motor of unblanking (5);
Described magnetic field detector comprises magnetic field pick-up circuit and amplifier;
Described Receiver Module (2), EEPROM (3) and motor-drive circuit (4) are connected with single-chip microcomputer (6) respectively;
Described magnetic field pick-up circuit is connected with single-chip microcomputer by amplifier.
2. a kind of electricity anti-theft system based on electric energy meter as claimed in claim 1, is characterized in that, described electronic lock is connected with palm machine.
3. a kind of electricity anti-theft system based on electric energy meter as claimed in claim 1, is characterized in that, in described electronic lock, in radiofrequency emitting module 1 and Receiver Module (2) and palm machine, radio-frequency card communicates.
4. a kind of electricity anti-theft system based on electric energy meter as claimed in claim 1, is characterized in that, described motor-drive circuit (4) is connected with the motor of unblanking (5).
5. a kind of electricity anti-theft system based on electric energy meter as claimed in claim 1, is characterized in that, described single-chip microcomputer is AT89C2051 single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420200648.9U CN203798881U (en) | 2014-04-23 | 2014-04-23 | Electricity stealing prevention system based on electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420200648.9U CN203798881U (en) | 2014-04-23 | 2014-04-23 | Electricity stealing prevention system based on electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203798881U true CN203798881U (en) | 2014-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420200648.9U Expired - Lifetime CN203798881U (en) | 2014-04-23 | 2014-04-23 | Electricity stealing prevention system based on electric energy meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203798881U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645850A (en) * | 2016-10-09 | 2017-05-10 | 珠海瑞捷电气股份有限公司 | Remote anti-electricity-larceny system |
| CN112098712A (en) * | 2020-07-28 | 2020-12-18 | 宁波三星医疗电气股份有限公司 | Electricity larceny prevention method |
-
2014
- 2014-04-23 CN CN201420200648.9U patent/CN203798881U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645850A (en) * | 2016-10-09 | 2017-05-10 | 珠海瑞捷电气股份有限公司 | Remote anti-electricity-larceny system |
| CN112098712A (en) * | 2020-07-28 | 2020-12-18 | 宁波三星医疗电气股份有限公司 | Electricity larceny prevention method |
| CN112098712B (en) * | 2020-07-28 | 2023-06-30 | 宁波三星医疗电气股份有限公司 | Method for preventing fraudulent use of electricity |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140827 |