CN1215337C - Intelligent fraudulent use prevention electric energy measuring method and device thereof - Google Patents
Intelligent fraudulent use prevention electric energy measuring method and device thereof Download PDFInfo
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- CN1215337C CN1215337C CN 02149698 CN02149698A CN1215337C CN 1215337 C CN1215337 C CN 1215337C CN 02149698 CN02149698 CN 02149698 CN 02149698 A CN02149698 A CN 02149698A CN 1215337 C CN1215337 C CN 1215337C
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- 238000000034 method Methods 0.000 title abstract description 9
- 230000002265 prevention Effects 0.000 title 1
- 238000004891 communication Methods 0.000 claims abstract description 40
- 230000005611 electricity Effects 0.000 claims abstract description 19
- 238000012545 processing Methods 0.000 claims abstract description 7
- 238000004804 winding Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 11
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Abstract
The present invention relates to an electric energy metering method for intelligently preventing electricity theft. An original accessed electric energy meter in a transformer system is replaced by a three-phase multifunctional electric energy meter 20 in which the functions of intelligent processing and wireless communication are added. In addition, an intelligentized CT with the function of wireless communication, namely a current transformer 50 is additionally arranged at each phase or only at a b phase of the primary side (high-voltage side) of the system. When the system is in a three-phase four-wire system, the current transformer can be additionally arranged only at the secondary side. The CT 50 comprises an A/D converter 54, a CPU 55 and a wireless communication module 56. A CPU comparison circuit 28 and a wireless communication module 36 are additionally arranged in the meter 20. Current values measured by the CT 50 are sent to the meter 20, and are compared in the comparison circuit 28. If a comparison difference value exceeds a predetermined value, the occurrence of failure or electricity theft behavior can be determined so that an alarm is give immediately. The method has the outstanding advantages that the fraudulent use of electric energy can be comparatively accurately detected, and the occurrence of electricity theft behavior is effectively prevented. In addition, a device which uses the method has the advantages of lower manufacturing cost, simplicity, practicality and convenient on-site installation.
Description
Technical field the present invention relates to measure the device of electric power time integral, relates in particular to by microprocessor, measures power consumption with the mode with radio communication of numeral, the device of avoiding simultaneously and indicating duplicity to use.
There is the problem of how to detect and to take precautions against stealing all the time in the metering that the background technology prior art consumes electric energy for each terminal user of electric system.At present various have the major defects that anti-, as to oppose electricity-stealing function electric power meter exists and be: 1. the electric energy meter meter function of preventing, opposing electricity-stealing itself is limited, especially secondary instrumentation loop current transformer (abbreviating CT on the Figure of description as) occurs signal is shunted, when short circuit, false wiring or open circuit, can't carry out timely and effectively, detect accurately and judge; 2. the anti-electricity-theft device that function is more complete must be independent of outside the electric energy meter meter, and cost height, installation and maintenance inconvenience can't large tracts of land be promoted the use of.
The summary of the invention the technical problem to be solved in the present invention is to avoid above-mentioned the deficiencies in the prior art part and proposes a kind ofly can effectively prevent, oppose electricity-stealing, and the electric power meter of the lower intelligent electricity anti-theft of cost.
The technical scheme that the present invention solve the technical problem is, manufacture and design a kind of electric power meter of intelligent electricity anti-theft, comprise the three-phase multifunctional electrical energy meter meter, also comprise being used and will being installed in the same voltage transformer system with position, described electric energy meter meter place with described electric energy meter meter and don't be the intelligent electric current transformer in same place.This intelligent electric current transformer comprises mould/number conversion circuit, CPU (CPU (central processing unit)), and first wireless communication module.Set up table meter CPU comparator circuit, second wireless communication module and CPU communication interface in the described three-phase multifunctional electrical energy meter meter.Microprogram in the described CPU is modified to and makes this electric energy meter meter receive the detected current signal of described intelligent electric current transformer, and the current value that itself and this electric energy meter instrumentation gets is compared in table meter CPU comparator circuit.Pass through wireless channel transmissioning data between second wireless communication module of described electric energy meter meter and first wireless communication module of described intelligent electric current transformer.Especially, described three-phase multifunctional electrical energy meter meter also comprises voltage counter, active power counting device, reactive power counting device and frequency counter, they all accept the signal imported respectively from analog signal processing circuit, and all import described table meter CPU comparator circuit via the SPI interface.
Compare with prior art, the outstanding advantage of apparatus of the present invention is, can detect duplicity more exactly and use electric energy, effectively takes precautions against electricity filching behavior and takes place.And apparatus of the present invention cost is lower, and is simple in structure, practical, on-the-spot easy for installation, has the large tracts of land promotional value.
Description of drawings Fig. 1 is a general logical block diagram of describing apparatus of the present invention;
Fig. 2 is the principle of work block diagram that has the multifunctional electric energy meter meter 20 of radio communication function in the electric power meter of intelligent electricity anti-theft of the present invention;
Fig. 3 is the principle of work block diagram that has the intelligent open-close type current transformer 50 of radio communication function in the electric power meter of intelligent electricity anti-theft of the present invention;
When Fig. 4 is to use the inventive method, only set up the circuit catenation principle figure of intelligent electric current transformer 50 in voltage transformer system B phase circuit, 30 is prior art electric energy meters among the figure;
Fig. 5 be voltage transformer system under three-phase four-wire system wiring situation, only insert the circuit catenation principle figure of intelligent electric current transformer 50 when using the inventive method at center line N, 30 is prior art electric energy meters among the figure;
Fig. 6 is the basic circuit diagram of second wireless communication module 36 of multifunctional electric energy meter meter 20 in apparatus of the present invention;
Fig. 7 is the basic circuit diagram that has the intelligent open-close type current transformer 50 of radio communication function in apparatus of the present invention;
Fig. 8 is the metering section basic circuit diagram of described electric energy meter meter 20;
Fig. 9 is the funtion part basic circuit diagram of described electric energy meter meter 20;
Figure 10 is the simple and clear software flow pattern of CPU microprogram in the described electric energy meter meter 20.
Embodiment is described in further detail below in conjunction with the most preferred embodiment shown in each accompanying drawing: the electric energy gauging method of intelligent electricity anti-theft of the present invention, at first be, the original place of inserting three-phase electric energy meter meter 30 in voltage transformer system, use the three-phase multifunctional electrical energy meter meter 20 that increases intelligent processing and radio communication function within it instead, and each phase of primary side (high-pressure side) at described voltage transformer system, perhaps only have additional the intelligent electric current transformer 50 of radio communication function mutually, referring to Fig. 4 at B.In described supply transformer system is the situation of three-phase four-wire system, can also be only to set up intelligent electric current transformer 50 at the center line N of secondary side, referring to Fig. 5.The electric energy gauging method of intelligent electricity anti-theft of the present invention and device general logical block diagram are seen Fig. 1,
Comprise step
A. in the supply transformer system, adorn with three-phase multifunctional electrical energy meter meter 20;
B. in described voltage transformer system, in the same phase supply line of dress with described electric energy meter meter 20, perhaps only in the B of this voltage transformer system phase circuit, set up intelligent electric current transformer 50, comprise mould/number (abbreviating A/D on the Figure of description as) change-over circuit 54, CPU (CPU (central processing unit)) 55 in it, and first wireless communication module 56;
C. in described electric energy meter meter 20, set up table meter CPU comparator circuit 28, second wireless communication module 36 and each communication interface of CPU, and suitably revise microprogram in the CPU, make described electric energy meter meter 20 receive described intelligent electric current transformer 50 detected current signals, the current value that itself and this electric energy meter meter 20 records is compared in table meter CPU comparator circuit 28;
D. described intelligent electric current transformer 50 records the current value in the described voltage transformer system, by touch/number conversion circuit 54 is transformed to digital signal with this current value, sends via first wireless communication module 56;
E. described electric energy meter meter 20 receives the digital current signal that sends from current transformer 50 by second wireless communication module 36, and the current value ratio that records with this electric energy meter meter 20 in table meter CPU comparator circuit 28 is right;
F. compare residual quantity Δ I and exceed predefined limit value, can conclude has had fault or has had electricity filching behavior to take place, and will report to the police immediately, simultaneously output alarm signal.
Described step b, in each situation of all setting up intelligent electric current transformer 50 mutually of described voltage transformer system, the current value that this current transformer 50 must be recorded is compared respectively with the respective electrical flow valuve that the electric energy meter meter 20 in being connected on same supply line mutually records.Described supply transformer system is if the situation of three-phase four-wire system, and this step b only sets up intelligent electric current transformer 50 at the center line N of secondary side.Described situation of setting up intelligent electric current transformer 50 mutually at the B of voltage transformer system, the current value that this current transformer 50 must be recorded
The current value vector that records in other two-phase with electric energy meter meter 20 and
Compare in table meter CPU comparator circuit 28, electric energy meter meter 20 also need only be measured A phase and C electric current mutually certainly.Described step b, the described intelligent electric current transformer 50 of setting up is primary sides (high-pressure side) of setting up in described supply transformer system, described current transformer 50 is open-close type current transformers.
The electric power meter of intelligent electricity anti-theft of the present invention, comprise three-phase multifunctional electrical energy meter meter 20, referring to Fig. 2, also comprise being used and will being installed in the same voltage transformer system with position, described electric energy meter meter 20 place with described electric energy meter meter 20 and don't be the intelligent electric current transformer 50 in same place, see Fig. 3 and Fig. 7.This current transformer 50 comprises mould/number conversion circuit 54, CPU 55, and first wireless communication module 56.Described intelligent electric current transformer 50 comprises two current transformers of I, U, or two output of I, U winding is set on self same magnetic core, wherein mutual inductor (or winding) I is used to measure current value, and mutual inductor (or winding) U is used to provide whole described intelligent electric current transformer 50 required control power supplys.IC 101 is computation chips among Fig. 7, it accepts the tested current signal that current transformer (or winding) I sends, carry out mould/number conversion and transformation result is delivered to chip microprocessor U2 carry out calculation process, data are sent to the host CPU chip IC 1 of described electric energy meter meter 20 after the computing by the first radio receiving transmitting module U1.
Set up table meter CPU comparator circuit 28, second wireless communication module 36 and CPU communication interface in the described three-phase multifunctional electrical energy meter meter 20, referring to Fig. 2, Fig. 6, Fig. 8 and Fig. 9.Microprogram in the described CPU is modified to and makes this electric energy meter meter 20 receive described intelligent electric current transformer 50 detected current signals, and the current value that itself and this electric energy meter meter 20 records is compared in table meter CPU comparator circuit 28.Pass through wireless channel transmissioning data between second wireless communication module 36 of described electric energy meter meter 20 and first wireless communication module 56 of described intelligent electric current transformer 50.Especially, three-phase multifunctional electrical energy meter meter 20 also comprises voltage counter 23, active power counting device 24, reactive power counting device 25 and frequency counter 26 among Fig. 2, they all accept the signal imported respectively from analog signal processing circuit 22, and all via SPI interface 27 input table meter CPU comparator circuits 28.
Each communication interface of CPU of setting up in the described electric energy meter meter 20 comprises pulse output interface 32, infrared communication interface 34 and RS485 communication interface 35, and they all set up the bi-directional exchanges of information passage with table meter CPU comparator circuit 28.Fig. 6 is the basic circuit diagram of second wireless communication module 36, and U1 is the radio receiving transmitting module that receives, sends one among the figure.Wireless signal is received or is sent by antenna ANTENNA, 433 kilo hertzs of carrier frequencies, and the transmitting-receiving control of its data and coding, decoding, and error correction is finished by chip microprocessor U2.Fig. 8 is the metering section basic circuit diagram, and IC 101～103rd among the figure, computation chip, and its major function is that electric current, the voltage signal that will collect carry out computing and be transformed to digital signal, for the host CPU chip IC 1 among Fig. 9 provides data.Fig. 9 is the funtion part basic circuit diagram, also comprises Chinesizing LCDs 33, and it has the bi-directional exchanges of information passage with table meter CPU comparator circuit, is used for the various readings of indicating gauge meter.Host CPU chip IC 1 is analyzed the data that obtain, compare, and flows to LCD (LCDs) 33 then and shows, input EEPROM storage also can be carried out copying of data by integrated circuit (IC) 8 and get.
Microprogram in the described CPU is modified to and makes this electric energy meter meter 20 receive described intelligent electric current transformer 50 detected current signals, and it is compared, and sees the simple and clear software flow pattern of Figure 10.Pass through wireless channel transmissioning data between second wireless communication module 36 of described electric energy meter meter 20 and first wireless communication module 56 of described intelligent electric current transformer 50.
It below is used each main components and parts detail list of electric power meter most preferred embodiment of intelligent electricity anti-theft of the present invention.
Circuit symbol title model, specification manufacturer
IC 101～103 computation chips 9105 South Africa SAMES companies
IC 1 host CPU chip UPD78P0308
IC 8 telecommunication circuit MAX485
IC 12,13 frequency dividers 4040
The U1 radio receiving transmitting module
U2 chip microprocessor AT90S2313
Claims (5)
1. the electric power meter of an intelligent electricity anti-theft, comprise three-phase multifunctional electrical energy meter meter (20), also comprise being used and will being installed in the same voltage transformer system with described electric energy meter meter (20) position, place with described electric energy meter meter (20) and don't be the intelligent electric current transformer (50) in same place; This intelligent electric current transformer (50) comprises mould/number conversion circuit (54), CPU (55), and first wireless communication module (56);
Set up table meter CPU comparator circuit (28), second wireless communication module (36) and CPU communication interface in the described three-phase multifunctional electrical energy meter meter (20), microprogram in the described CPU is modified to and makes this electric energy meter meter (20) receive the detected current signal of described intelligent electric current transformer (50), and the current value that itself and this electric energy meter meter (20) records is compared in table meter CPU comparator circuit (28);
Pass through wireless channel transmissioning data between second wireless communication module (36) of described electric energy meter meter (20) and first wireless communication module (56) of described intelligent electric current transformer (50); It is characterized in that:
Described three-phase multifunctional electrical energy meter meter (20) also comprises voltage counter (23), active power counting device (24), reactive power counting device (25) and frequency counter (26), they all accept the signal imported respectively from analog signal processing circuit (22), and all via SPI interface (27) input table meter CPU comparator circuit (28).
2. according to the electric power meter of the described intelligent electricity anti-theft of claim 1, it is characterized in that:
The communication interface of described electric energy meter meter (20) comprises pulse output interface (32), infrared communication interface (34) and RS485 communication interface (35), and they all set up the bi-directional exchanges of information passage with table meter CPU comparator circuit (28).
3. according to the electric power meter of the described intelligent electricity anti-theft of claim 1, it is characterized in that:
Described electric energy meter meter (20) also comprises Chinesizing LCDs (33), and it has the bi-directional exchanges of information passage with table meter CPU comparator circuit (28), is used to indicate the various readings of described table meter (20).
4. according to the electric power meter of the described intelligent electricity anti-theft of claim 1, it is characterized in that:
Described intelligent electric current transformer (50) comprises two current transformers of I, U, and wherein mutual inductor I is used to measure current value, and mutual inductor U is used to provide whole described intelligent electric current transformer (50) required control power supply.
5. according to the electric power meter of the described intelligent electricity anti-theft of claim 1, it is characterized in that:
Described intelligent electric current transformer (50) is that two output of I, U winding is set on self same magnetic core, and wherein winding I is used to measure current value, and winding U is used to provide whole described intelligent electric current transformer (50) required control power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02149698 CN1215337C (en) | 2002-12-18 | 2002-12-18 | Intelligent fraudulent use prevention electric energy measuring method and device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02149698 CN1215337C (en) | 2002-12-18 | 2002-12-18 | Intelligent fraudulent use prevention electric energy measuring method and device thereof |
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| CN1419131A CN1419131A (en) | 2003-05-21 |
| CN1215337C true CN1215337C (en) | 2005-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 02149698 Expired - Fee Related CN1215337C (en) | 2002-12-18 | 2002-12-18 | Intelligent fraudulent use prevention electric energy measuring method and device thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101413966B (en) * | 2007-10-17 | 2012-12-19 | 湖北盛佳电器设备有限公司 | Modular electric energy metering machine |
| CN101446599B (en) * | 2007-11-26 | 2016-01-20 | 湖北盛佳电器设备有限公司 | There is the management of power use device of self-checking function |
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| CN1314972C (en) * | 2004-12-29 | 2007-05-09 | 重庆龙源科技产业发展有限公司 | Current transformer failure metering and electric larceny proof real-time on-line detection method and apparatus |
| CN100376897C (en) * | 2005-12-21 | 2008-03-26 | 淄博计保互感器研究所 | High voltage signal sampling method capable of adapting metering measuring or protection requirement |
| CN101266263B (en) * | 2008-05-10 | 2011-01-12 | 珠海市华优电气技术有限公司 | Electric power metrological supervision system and supervision method |
| CN102854382A (en) * | 2011-06-28 | 2013-01-02 | 苏州经贸职业技术学院 | Numerical electricity stealing prevention electric energy detection system |
| CN102981031B (en) * | 2011-09-05 | 2015-04-22 | 江苏林洋电子股份有限公司 | Electric energy meter and electricity larceny prevention circuit thereof |
| CN102539859A (en) * | 2011-12-31 | 2012-07-04 | 成都国腾实业集团有限公司 | Anti-electricity-stealing detecting system and method for communication base stations |
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| CN103513222B (en) * | 2013-10-15 | 2017-04-12 | 国网河北省电力公司邯郸供电分公司 | Ammeter rapid stealing detecting instrument |
| CN103913614A (en) * | 2014-04-30 | 2014-07-09 | 国家电网公司 | Intelligent electric meter box preventing electricity larceny |
| CN103954816A (en) * | 2014-04-30 | 2014-07-30 | 国网上海市电力公司 | Inelegant remote anti-electricity-stealing inspection method |
| CN104375002A (en) * | 2014-10-10 | 2015-02-25 | 中国石油化工股份有限公司 | Electricity metering system, electricity measuring device and electricity metering device |
| CN105116745A (en) * | 2015-08-20 | 2015-12-02 | 成都弘毅天承科技有限公司 | Wifi-based intelligent home anti-tamper intelligent ammeter wireless reading system |
| CN105182022A (en) * | 2015-10-27 | 2015-12-23 | 国网山东利津县供电公司 | Electric quantity depositing device and method during meter installation, power connection and exchange |
| CN105223392A (en) * | 2015-10-30 | 2016-01-06 | 国网新疆电力公司电力科学研究院 | Based on the Anti-fradulance of IEC62056 standard |
| CN105911345A (en) * | 2016-04-26 | 2016-08-31 | 上海电机学院 | Ammeter system capable of preventing power theft |
| CN107037259A (en) * | 2016-11-20 | 2017-08-11 | 广西大学 | A kind of intelligent electricity anti-theft management system worked well |
| CN106504499A (en) * | 2016-11-23 | 2017-03-15 | 湖南威铭能源科技有限公司 | Civilian wireless watermeter meter register method |
| CN107884653B (en) * | 2017-12-03 | 2023-06-02 | 国网江西省电力有限公司南昌供电分公司 | Electricity inspection equipment for extensible module |
| CN112491140A (en) * | 2020-11-16 | 2021-03-12 | 大庆轩鼎电器有限公司 | Electricity stealing prevention integrated device |
-
2002
- 2002-12-18 CN CN 02149698 patent/CN1215337C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101413966B (en) * | 2007-10-17 | 2012-12-19 | 湖北盛佳电器设备有限公司 | Modular electric energy metering machine |
| CN101446599B (en) * | 2007-11-26 | 2016-01-20 | 湖北盛佳电器设备有限公司 | There is the management of power use device of self-checking function |
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| CN1419131A (en) | 2003-05-21 |
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