CN1419131A - 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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Abstract
The invention is an intelligent electricity fraudulent use prevention electric-energy measuring method. It connects the intelligent wireless-communication three-phase multi-function electric-energy meter in transformer system, adds the wireless-communication intelligent CT (current mutual inductor) on each phase of HV side or only on b phase, and if three-phase four-wrie system, adds CT only on the midline of secondary side. Ct includes A/D, CPU and wireless-communication module. The meter is added CPU comparision circuit and wireless-communication module. Send the measured current values by CT to the meter, and when trouble or electricity frauduent use occurs, alarm at once.
Description
Technical field the present invention relates to measure the method for electric power time integral, relates in particular to by microprocessor, measures power consumption with the mode with radio communication of numeral, the method and apparatus 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 technical background 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 occurs that CT is that the current transformer 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.
Summary of the invention technical matters to be solved by this 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 energy gauging method and the device of the lower intelligent electricity anti-theft of cost.The technical scheme that the present invention solve the technical problem is, proposes a kind of electric energy gauging method of intelligent electricity anti-theft, and the method comprising the steps of
A. in the supply transformer system, adorn and use the three-phase multifunctional electrical energy meter meter; Especially also comprise step
B. in described voltage transformer system, in the same phase supply line of dress with described electric energy meter meter, or only to set up intelligent CT in the b of this voltage transformer system phase circuit be current transformer, comprise in it that A/D is that mould/number conversion circuit, CPU are CPU (central processing unit), and wireless communication module;
C. in described electric energy meter meter, set up table meter CPU comparator circuit, wireless communication module and CPU communication interface, and suitably revise the program in the CPU, make described electric energy meter meter can receive the detected current signal of described intelligent CT, compare simultaneously;
D. described intelligent CT records the current value in the described voltage transformer system, quantizes by the A/D change-over circuit, sends via wireless communication module again;
E. described electric energy meter meter receives the digital current signal that sends from CT by wireless communication module, and the current value ratio that gets with this electric energy meter instrumentation in table meter CPU comparator circuit 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.
The technical scheme that the present invention is used to solve the technical problem also has: the electric power meter that manufactures and designs a kind of intelligent electricity anti-theft, comprise the three-phase multifunctional electrical energy meter meter, especially 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 but be not that the intelligent CT in same place is a current transformer.This CT comprises that A/D is that mould/number conversion circuit, CPU are CPU (central processing unit), and wireless communication module.Set up table meter CPU comparator circuit, 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 can receive the detected current signal of described intelligent CT, compares simultaneously.Pass through wireless channel transmissioning data between the wireless communication module of described electric energy meter meter and the wireless communication module of described intelligent CT.
Compare with prior art, the outstanding advantage of the inventive method 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 the inventive method;
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 to have the intelligent open-close type CT of radio communication function in the electric power meter of intelligent electricity anti-theft of the present invention be current transformer 50;
When Fig. 4 is to use the inventive method, only set up the circuit catenation principle figure of CT50 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 CT50 when using the inventive method at center line, 30 is prior art electric energy meters among the figure;
Fig. 6 is the basic circuit diagram of the 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 CT 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 the three-phase electric energy meter meter 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, or the intelligent CT that only has additional radio communication function mutually at b is current transformer 50, referring to Fig. 4.In described supply transformer system is the situation of three-phase four-wire system, can also be only to set up intelligent CT50 at the center line of secondary side, referring to Fig. 5.The electric energy gauging method general logical block diagram of intelligent electricity anti-theft of the present invention is seen Fig. 1, comprises step
A. in the supply transformer system, adorn with three-phase multifunctional electrical energy meter meter 20; Especially also comprise step
B. in described voltage transformer system, in the same phase supply line of dress with described electric energy meter meter 20, or only to set up intelligent CT in the b of this voltage transformer system phase circuit be current transformer 50, comprise in it that A/D is that mould/number conversion circuit 54, CPU are CPU (central processing unit) 55, and wireless communication module 56;
C. in described electric energy meter meter 20, set up table meter CPU comparator circuit 28, wireless communication module 36 and CPU communication interface, and suitably revise program in the CPU, make described electric energy meter meter 20 can receive the detected current signal of described intelligent CT50, compare simultaneously;
D. described intelligent CT50 records the current value in the described voltage transformer system, quantizes by A/D change-over circuit 54, sends via wireless communication module 56 again;
E. described electric energy meter meter 20 receives the digital current signal that sends from CT50 by 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 CT50 mutually of described voltage transformer system, the current value that this CT50 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 CT50 at the center line of secondary side.Described situation of setting up intelligent CT50 mutually at the b of voltage transformer system, the current value that this CT50 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 describedly sets up intelligent CT50, is the primary side of setting up in described supply transformer system (high-pressure side), and described CT50 is an open-close type current transformer.
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, especially 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 that the intelligent CT in same place is a current transformer 50, see Fig. 3 and Fig. 7.This CT50 comprises that A/D is that mould/number conversion circuit 54, CPU are CPU (central processing unit) 55, and wireless communication module 56.Described intelligent CT50 comprises two current transformers of A, B, or two output of A, B winding is arranged on the same magnetic core, and wherein CTA is used to measure current value, and CTB is used to provide whole C T50 required control power supply.IC101 is a computation chip among Fig. 7, and it accepts the tested current signal that CTA sends, and carries out A/D and changes and transformation result is delivered to chip microprocessor U2 carry out calculation process, and data are sent to host CPU chip IC 1 by radio receiving transmitting module Ul after the computing.
Set up table meter CPU comparator circuit 28, 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.Electric 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.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.Fig. 6 is the basic circuit diagram of 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, IC101 among the figure～103rd, and computation chip, its major function is that circuit, the voltage signal that will collect carry out computing and quantification, 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 flowing to LCD then is that LCDs 33 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 can receive the detected current signal of described intelligent CT50, compares simultaneously, sees the simple and clear software flow pattern of Figure 10.Pass through wireless channel transmissioning data between the wireless communication module 36 of described electric energy meter meter 20 and the wireless communication module 56 of described intelligent CT50.
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
IC101～103 computation chips, 9105 South Africa SAMES companies
IC4～7, IC14～17 storer 24C128
IC2 detection of power loss chip MAX708
IC1 host CPU chip UPD78P0308
IC8 telecommunication circuit MAX485
IC12,13 frequency dividers 4040
The U1 radio receiving transmitting module
U2 chip microprocessor AT90S2313
Claims (10)
1. the electric energy gauging method of an intelligent electricity anti-theft comprises step
A. in the supply transformer system, adorn with three-phase multifunctional electrical energy meter meter (20);
It is characterized in that: also comprise step
B. in described voltage transformer system, in the same phase supply line of dress with described electric energy meter meter (20), or only to set up intelligent CT in the b of this voltage transformer system phase circuit be current transformer (50), comprise in it that A/D is that mould/number conversion circuit (54), CPU are CPU (central processing unit) (55), and wireless communication module (56);
C. in described electric energy meter meter (20), set up table meter CPU comparator circuit (28), wireless communication module (36) and CPU communication interface, and suitably revise program in the CPU, make described electric energy meter meter (20) can receive the detected current signal of described intelligent CT (50), compare simultaneously;
D. described intelligent CT (50) records the current value in the described voltage transformer system, quantizes by A/D change-over circuit (54), sends via wireless communication module (56) again;
E. described electric energy meter meter (20) receives the digital current signal that sends from CT (50) by 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.
2. according to the electric energy gauging method of the described intelligent electricity anti-theft of claim 1, it is characterized in that:
Described step B, in each situation of all setting up intelligent CT (50) mutually of described voltage transformer system, the current value that this CT (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.
3. according to the electric energy gauging method of the described intelligent electricity anti-theft of claim 1, it is characterized in that:
Described supply transformer system is the situation of three-phase four-wire system, and described step B only sets up intelligent CT (50) at the center line of secondary side.
4. according to the electric energy gauging method of the described intelligent electricity anti-theft of claim 1, it is characterized in that:
Described step B, in the situation of only setting up intelligent CT (50) mutually at the b of described voltage transformer system, the current value that this CT (50) must be recorded
The current value vector that records in other two-phase with electric energy meter meter (20) and
In table meter CPU comparator circuit (28), compare; Electric energy meter meter (20) also need only be measured a phase and c electric current mutually certainly.
5. according to the electric energy gauging method of the described intelligent electricity anti-theft of claim 1, it is characterized in that:
Described step B, the described intelligent CT (50) that sets up is the primary side of setting up in described supply transformer system (high-pressure side), described CT (50) is an open-close type current transformer.
6. the electric power meter of an intelligent electricity anti-theft comprises three-phase multifunctional electrical energy meter meter (20), it is characterized in that:
Also comprise and be used and will be 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 that the intelligent CT in same place is current transformer (50); This CT (50) comprises that A/D is that mould/number conversion circuit (54), CPU are CPU (central processing unit) (55), and wireless communication module (56);
Set up table meter CPU comparator circuit (28), 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) can receive the detected current signal of described intelligent CT (50), compares simultaneously;
Pass through wireless channel transmissioning data between the wireless communication module (36) of described electric energy meter meter (20) and the wireless communication module (56) of described intelligent CT (50).
7. according to the electric power meter of the described intelligent electricity anti-theft of claim 6, 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).
8. according to the electric power meter of the described intelligent electricity anti-theft of claim 6, 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).
9. according to the electric power meter of the described intelligent electricity anti-theft of claim 6, 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, is used for the various readings of indicating gauge meter.
10. according to the electric power meter of the described intelligent electricity anti-theft of claim 6, it is characterized in that:
Described intelligent CT (50) comprises two current transformers of A, B, or two output of A, B winding is arranged on the same magnetic core, and wherein CTA is used to measure current value, and CTB is used to provide whole C T (50) required control power supply.
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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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| 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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| CN1215337C CN1215337C (en) | 2005-08-17 |
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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 |
| 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 |
| CN102778103A (en) * | 2012-07-23 | 2012-11-14 | 合肥美的荣事达电冰箱有限公司 | Method and device for detecting and displaying power of refrigerator and refrigerator with device |
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| CN103217560A (en) * | 2013-03-23 | 2013-07-24 | 国家电网公司 | Anti-stealing-electricity analysis meter |
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| CN103954816A (en) * | 2014-04-30 | 2014-07-30 | 国网上海市电力公司 | Inelegant remote anti-electricity-stealing inspection method |
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| 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 |
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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 |
| CN107037259A (en) * | 2016-11-20 | 2017-08-11 | 广西大学 | A kind of intelligent electricity anti-theft management system worked well |
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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 |
| CN102981031A (en) * | 2011-09-05 | 2013-03-20 | 江苏林洋电子股份有限公司 | Electric energy meter and electricity larceny prevention circuit thereof |
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| 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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| CN103217560A (en) * | 2013-03-23 | 2013-07-24 | 国家电网公司 | Anti-stealing-electricity analysis meter |
| 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 |
| CN107884653A (en) * | 2017-12-03 | 2018-04-06 | 国网江西省电力有限公司南昌供电分公司 | The power utility check equipment of extensible modules |
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| CN109683121A (en) * | 2019-01-30 | 2019-04-26 | 国网黑龙江省电力有限公司大兴安岭供电公司 | It opposes electricity-stealing check device |
| CN112491140A (en) * | 2020-11-16 | 2021-03-12 | 大庆轩鼎电器有限公司 | Electricity stealing prevention integrated device |
| CN115508763A (en) * | 2022-08-03 | 2022-12-23 | 国网浙江义乌市供电有限公司 | System for checking hidden line danger of mutual inductor |
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