CN202929077U - Electricity stealing resistant device and its system - Google Patents
Electricity stealing resistant device and its system Download PDFInfo
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- CN202929077U CN202929077U CN2012203643216U CN201220364321U CN202929077U CN 202929077 U CN202929077 U CN 202929077U CN 2012203643216 U CN2012203643216 U CN 2012203643216U CN 201220364321 U CN201220364321 U CN 201220364321U CN 202929077 U CN202929077 U CN 202929077U
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- 238000004891 communication Methods 0.000 description 6
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Abstract
The utility model brings forward an electricity stealing resistant device and its system. The device comprises a processor, an electric quantity collector, an electric meter data capture device, a power supply, a memory and a clock chip. The electric quantity collector collects electric quantity parameters at the incoming line side of an electric meter box. The electric meter data capture device acquires the electrical parameters of each electric meter. The processor compares the electric quantity calculated through the electrical parameters at the incoming line side of an electric meter box with the sum of electric quantities in the electric quantity parameters of each electric meter. For example, if the difference between the electric quantity and the sum exceeds a predetermined threshold value, it is considered that an electricity stealing event happens. The system provided by the utility model comprises the electricity stealing resistant device and a master station. The electric quantity parameters at the incoming line side and the electrical parameters of each electric meter are transmitted by the electricity stealing resistant device to the master station, and the master station compares the electric quantity parameters at the incoming line side with the sum of the electric quantities of each electric meter. If there is something abnormal, an alarm message is sent out. The electricity stealing resistant device and its system require low cost, are convenient to popularize in quantity, and can be used to help power utility checkers to do their jobs and raise lean management levels of power supply companies.
Description
Technical field
The utility model belongs to power domain, is specifically related to a kind of anti-electricity-theft device and system thereof.
Background technology
In recent years, along with the increase of family expenses consumer, resident's stealing electricity phenomenon is in rising trend, electricity filching behavior has seriously been encroached on the rights and interests of power supply enterprise, cause line loss high, this not only brings about great losses to state-owned assets, and has seriously upset confession, electricity consumption order.Particularly for a large amount of residents' stealing, the investigation difficulty of power supply department is very large.For this phenomenon, also do not have at present effective technological means to tackle.
In prior art, usually adopt and table of merit rating is installed in the power distribution station is come analysis station district line loss, finding the platform district of high line loss, and then take other measure.But this scheme can only find to have the platform district of stealing suspicion, can not find like clockwork problematic residential building and floor in this district, so still can't find the stealing event, reaches real anti-electricity-theft purpose.
The utility model content
In order to overcome the defects of prior art, one of the purpose of this utility model is to propose a kind of ammeter box that can find that power consumption is abnormal, and dwindles the anti-electricity-theft device of inspector's seek scope.
The utility model is achieved by the following technical solution:
A kind of anti-electricity-theft device, it comprises processor and the electric quantity collector that is connected with processor, ammeter data grabber, power supply, storer and clock chip, described electric quantity collector gathers the electrical parameter of ammeter box inlet wire side, and described ammeter data grabber is by intercepting the electrical parameter that obtains each ammeter in ammeter box; The electric weight that described processor will calculate by ammeter box inlet wire side electrical parameter and the electric weight sum in each ammeter electrical parameter compare, if difference both surpasses predetermined threshold, thinking has the stealing event to occur.
Further, this device can also comprise the Short Message Service module that is used for sending warning message when the stealing event occurs that is connected with processor.
Further, this device can also comprise radio-frequency module or the GPRS module that is connected with processor.
Further, this device can also comprise the human-computer interaction module that is connected with processor.
Further, described human-computer interaction module can comprise arbitrary to all in keyboard, mouse, handwriting pad, touch-screen and LCDs.
Further, described ammeter data grabber can comprise RS485 telecommunication circuit or carrier module:
When the ammeter data grabber adopted the RS485 telecommunication circuit, it was communicated by letter by each ammeter of RS485 bus snooping and collector, and obtains the electrical parameter of each ammeter;
When the ammeter data grabber adopted carrier module, it intercepted communicating by letter of each ammeter and concentrator by carrier system, and obtains the electrical parameter of each ammeter.
Further, described electric quantity collector can adopt following arbitrary structure:
Described electric quantity collector comprises current sensor, described electric quantity collector reaches processor with the default voltage of ammeter box and the ammeter box inlet wire side electric current of current sensor collection, and measures the electric weight of ammeter box inlet wire side according to default voltage and inlet wire side galvanometer by processor;
Described electric quantity collector comprises current sensor, voltage sensor and computation chip; Described computation chip measures the electric weight of ammeter box inlet wire side and reaches processor according to the ammeter box inlet wire side electric current of current sensor collection and the ammeter box entrance voltmeter of voltage sensor collection.
Another purpose of the present utility model is to propose a kind of electricity anti-theft system, and this system comprises anti-electricity-theft device as above, also comprises main website, wherein,
Described anti-electricity-theft device is installed in ammeter box, and the electrical parameter of each ammeter in the inlet wire side electrical parameter that obtains, the ammeter box inlet wire side electric weight that calculates and ammeter box is reached main website by radio-frequency module or GPRS module, by main website, the inlet wire side electric weight of ammeter box and the electric weight sum of each ammeter are compared, if difference both surpasses predetermined threshold, thinking has the stealing event to occur.
Further, described main website can adopt portable main website or long-range main website: when main website was portable main website, described anti-electricity-theft device can communicate with by radio-frequency module; When main website was long-range main website, described anti-electricity-theft device can communicate with by the GPRS module.
The beneficial effects of the utility model are:
1, this anti-electricity-theft device and system can find the ammeter box of multiplexing electric abnormality, and specifically navigate to which phase multiplexing electric abnormality, therefore, have dwindled inspector's examination scope.This system cost is low, is convenient to large-scale popularization, can help the power utility check personnel to carry out the work, and effectively improves the lean management level of power supply department.
2, this anti-electricity-theft device and system both can pass through the RS485 bus snooping, also can intercept by the power line carrier communication mode, communicate by letter with concentrator when obtaining message when intercept ammeter by the power line carrier communication mode, owing to obtaining data by line of electric force, has disguise, being difficult for being discovered by the stealing user, is therefore a kind of effective anti-electricity-theft means.
3, ammeter anomalous event information (for example: ammeter is disconnected mutually, decompression etc.) can be intercepted by this anti-electricity-theft device and system, therefore can find problematic ammeter.
Description of drawings
Fig. 1 is the theory diagram of the utility model anti-electricity-theft device embodiment;
Fig. 2 is the application schematic diagram of the utility model electricity anti-theft system embodiment;
Fig. 3 is the application schematic diagram of another embodiment of the utility model electricity anti-theft system.
Embodiment
Below in conjunction with accompanying drawing, the resident's of preventing electricity filching device of the present utility model and system thereof are described in further detail.
As shown in Figure 1, this routine anti-electricity-theft device comprises electric quantity collector, ammeter data grabber, processor, storer, power supply and clock chip (being RTC).In order to make this device have warning function, this device can also comprise Short Message Service module (being the SMS module), and this module can adopt supports the wireless transceiver that carries out two-way communication with mobile terminal (such as mobile phone etc.); In addition, this device can also comprise human-computer interaction module, and radio-frequency module (being the RF module) and/or GPRS module, radio-frequency module can adopt based on the radio frequency communications circuitry of radio frequency chip NRF905 and realize, the GPRS module can adopt on the market the GPRS chip of selling to add that corresponding peripheral circuit realizes.The below is elaborated to the each several part of this device of this example.
Electric quantity collector is for the electrical parameter that gathers ammeter box inlet wire side.Electric quantity collector can adopt following any technical scheme:
Scheme one: electric quantity collector comprises current sensor, for example with the Current Transmit of two analog signals line magnet rings, is used for gathering the electric current of ammeter box inlet wire side; This scheme belongs to the situation of not carrying out voltage measurement, the ammeter box inlet wire side electric current that electric quantity collector only is responsible for current sensor is gathered reaches processor, processor according to the default voltage of pre-stored in storer (for example is responsible for, 220V) calculate the electric weight of ammeter box inlet wire side with inlet wire side galvanometer, and be saved in storer.
Scheme two: electric quantity collector comprises current sensor, voltage sensor and computation chip, and electric quantity collector can also as required, utilize voltage sensor to gather the voltage of ammeter box entrance except utilizing current sensor to gather the electric current of ammeter box inlet wire side; This scheme belongs to the situation of carrying out voltage measurement, need be built-in with computation chip and circuit in electric quantity collector, and be connected with processor, the electric weight that the electric current that the computation chip basis records and voltmeter are calculated ammeter box inlet wire side reaches processor, and is saved in storer.
The ammeter data grabber is used for obtaining the electrical parameter of all ammeters in ammeter box by intercepting mode, and these data is sent to processor.Particularly, the ammeter data grabber can comprise the RS485 telecommunication circuit, and it is communicated by letter by each ammeter of RS485 bus snooping and collector, obtaining and to analyze message, thereby obtains the electrical parameter of each ammeter; The ammeter data grabber also can comprise carrier module, it intercepts communicating by letter of each ammeter (also being provided with built-in carrier module in each ammeter) and concentrator by the power line carrier mode, to obtain and to analyze message, thereby obtain the electrical parameter of each ammeter, wherein carrier module can be realized based on the normally used power line carrier chip in this area, does not repeat them here.
Intercept mode by employing, the ammeter data grabber can obtain all communication informations of ammeter and collector or concentrator, comprises electrical parameter, freezes electric weight and event information, information such as voltage, electric current, power, disconnected phase, decompression.
Processor for the electrical parameter of the ammeter box inlet wire side of obtaining the electric quantity collector collection, in the situation that do not carry out voltage measurement, (for example, 220V) calculates the electrical parameter of inlet wire side according to default voltage; In the situation that carry out voltage measurement, electric quantity collector obtains voltage, current data by voltage, current sensor, through the electrical parameter of computation chip and processor calculating inlet wire side.Processor also receives the electrical parameter of each ammeter of ammeter data grabber transmission, and with the electric weight summation, obtains showing the electric weight sum of all ammeters in case.Processor is compared the electrical parameter of inlet wire side with the electric weight sum of calculating each ammeter of gained, these two data should be substantially equal in principle, when both differences surpass predetermined threshold, namely thinking has the multiplexing electric abnormality event to occur, send warning message by Short Message Service module (being the SMS module) immediately, point out which ammeter box in which building to have the stealing event to occur.
Storer is used for storing the electrical parameter of ammeter box inlet wire side, and the electrical parameter of interior all ammeters of ammeter box.Particularly, according to the freeze-off time of ammeter, day freeze-off time for example, storer can be stored information about power and the corresponding time on date of day freeze-off time.As required, also can preserve for example trimestral at least electrical parameter.In addition, also store the table address of all ammeters in a certain table case in storer.
Power supply is used to processor that working power is provided.
Clock chip (being RTC) is used for time and relevant information that recording events occurs, for example day freeze-off time, and corresponding time on date.
As required, this routine anti-electricity-theft device also can have human-computer interaction module, comprises display module and/or load module.Wherein load module can be keyboard, mouse, handwriting pad, touch-screen etc., is used for input electricity consumption Query Information etc.Display module can be LCDs etc., is used for showing in this locality the electrical parameter of ammeter box inlet wire side, electrical parameter, the table total electrical parameter of case and the comparative result of each ammeter, facilitates inspector's scene to check.Can think that this routine anti-electricity-theft device is operated under local mode this moment.In addition, by corresponding configuration, this routine anti-electricity-theft device also can be operated under remote mode.This will hereinafter be described.
This example also proposes a kind of electricity anti-theft system.This system is made of above-mentioned anti-electricity-theft device and main website, and this moment, anti-electricity-theft device was operated in remote mode.Main website can be portable main website, portable computer for example, the movable equipment of handheld terminal (such as palm machine etc.) etc.; Can be also long-range main website, for example main website of Utilities Electric Co..Described device sends the electrical parameter of the inlet wire side electrical parameter that obtains and each ammeter to main website by radio-frequency module (being the RF module) with RF-wise (for portable main website) or by GPRS module (for long-range main website), carries out calculating and the comparison of ammeter electrical parameter in main website.Main website can carry out comparision of quantity of electricity, electric weight that for example can more nearest 30 days (optional) interior every days; After which ammeter box in Primary Location which building has stealing suspicion, can further show the access situation of case three-phase electricity according to this, accurately there is stealing suspicion in the ammeter of which phase of location, and the guiding work personnel check every the ammeter that is connected to this phase at the scene, find problematic ammeter; Main website also can do the synthesis analysis according to the various reported events of electric energy meter in the table case, checks the electricity consumption situation for the staff in main website.
Install in the table case 13 ammeters wherein 1 as common block lists such as illuminations as example, Fig. 2 shows an embodiment of this routine electricity anti-theft system.Wherein, anti-electricity-theft device is by the communication data of RS-485 bus snooping collector with interior each ammeter of table case, to obtain the electrical parameter of each ammeter.Fig. 3 shows another embodiment of this routine electricity anti-theft system.Wherein, install in addition carrier module in anti-electricity-theft device additional, intercept communicating by letter of concentrator and each ammeter by carrier system, to obtain the electrical parameter of each ammeter.
In sum, device and the system that prevents resident's stealing of the present utility model, by install above-mentioned anti-electricity-theft device additional in each ammeter box of every residential building, can find the table case that power consumption is abnormal, the inspection scope is locked onto the table case of potential stealing suspicion; In addition, also can be according to this access situation of showing the case three-phase electricity, there is stealing suspicion in the ammeter of further locating which phase.It is low that this anti-electricity-theft device and system thereof have a cost, is convenient to the advantages such as large-scale popularization, can help the power utility check personnel to carry out the work expeditiously, improves the lean management level of electric company.
Should be noted that at last: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit, although with reference to above-described embodiment, the utility model is had been described in detail, 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 break away from any modification 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 (10)
1. anti-electricity-theft device, it is characterized in that: this device comprises processor and the electric quantity collector that is connected with processor, ammeter data grabber, power supply, storer and clock chip, described electric quantity collector gathers the electrical parameter of ammeter box inlet wire side, and described ammeter data grabber is by intercepting to obtain the electrical parameter of each ammeter in ammeter box; The electric weight that described processor will calculate by ammeter box inlet wire side electrical parameter and the electric weight sum in each ammeter electrical parameter compare, if difference both surpasses predetermined threshold, thinking has the stealing event to occur.
2. anti-electricity-theft device as claimed in claim 1 is characterized in that: this device also comprises the Short Message Service module that is used for sending warning message when the stealing event occurs that is connected with processor.
3. anti-electricity-theft device as claimed in claim 1, it is characterized in that: this device also comprises radio-frequency module or the GPRS module that is connected with processor.
4. anti-electricity-theft device as claimed in claim 1, it is characterized in that: this device also comprises the human-computer interaction module that is connected with processor.
5. anti-electricity-theft device as claimed in claim 4 is characterized in that: described human-computer interaction module comprises arbitrary to all in keyboard, mouse, handwriting pad, touch-screen and LCDs.
6. described anti-electricity-theft device as arbitrary in claim 1-5, it is characterized in that: described ammeter data grabber comprises the RS485 telecommunication circuit, it is communicated by letter by each ammeter of RS485 bus snooping and collector, and obtains the electrical parameter of each ammeter.
7. described anti-electricity-theft device as arbitrary in claim 1-5, it is characterized in that: described ammeter data grabber comprises carrier module, it intercepts communicating by letter of each ammeter and concentrator by carrier system, and obtains the electrical parameter of each ammeter.
8. described anti-electricity-theft device as arbitrary in claim 1-5 is characterized in that: described electric quantity collector adopts following arbitrary structure:
Described electric quantity collector comprises current sensor, described electric quantity collector reaches processor with the default voltage of ammeter box and the ammeter box inlet wire side electric current of current sensor collection, and measures the electric weight of ammeter box inlet wire side according to default voltage and inlet wire side galvanometer by processor;
Described electric quantity collector comprises current sensor, voltage sensor and computation chip; Described computation chip measures the electric weight of ammeter box inlet wire side and reaches processor according to the ammeter box inlet wire side electric current of current sensor collection and the ammeter box entrance voltmeter of voltage sensor collection.
9. electricity anti-theft system, it is characterized in that: this system comprises described anti-electricity-theft device as arbitrary in claim 3-8, also comprises main website, wherein,
Described anti-electricity-theft device is installed in ammeter box, and the electrical parameter of each ammeter in the inlet wire side electrical parameter that obtains, the ammeter box inlet wire side electric weight that calculates and ammeter box is reached main website by radio-frequency module or GPRS module, main website compares to the inlet wire side electric weight of ammeter box and the electric weight sum of each ammeter, if difference both surpasses predetermined threshold, thinking has the stealing event to occur.
10. electricity anti-theft system as claimed in claim 9, is characterized in that, described main website adopts portable main website or long-range main website; Described anti-electricity-theft device communicates by radio-frequency module and portable main website, and perhaps described anti-electricity-theft device communicates by GPRS module and long-range main website.
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Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103487622A (en) * | 2013-09-25 | 2014-01-01 | 国网河南省电力公司南阳供电公司 | Electric meter box device with functions of preventing electricity stealing and carrying out monitoring |
| CN104237626A (en) * | 2014-10-17 | 2014-12-24 | 国家电网公司 | Electricity larceny preventing monitoring device |
| CN104459249A (en) * | 2014-11-27 | 2015-03-25 | 国家电网公司 | Abnormal electricity judgment method based on current abnormality analysis |
| CN104933273A (en) * | 2014-03-17 | 2015-09-23 | 国家电网公司 | Power-stealing prevention analysis method and device |
| CN104951989A (en) * | 2014-03-26 | 2015-09-30 | 国家电网公司 | Electricity theft analyzing method and system |
| CN106053907A (en) * | 2016-08-17 | 2016-10-26 | 合肥耀贝软件开发有限公司 | Multi-user intelligent electric meter system based on IOT (Internet of Things) |
| CN106291097A (en) * | 2016-07-20 | 2017-01-04 | 国网天津市电力公司 | A kind of anti-electricity-theft photovoltaic branch monitoring system |
| CN106291031A (en) * | 2016-10-27 | 2017-01-04 | 国网河北省电力公司衡水供电分公司 | Batch looks into stealing system |
| CN106370903A (en) * | 2016-10-27 | 2017-02-01 | 国网河北省电力公司衡水供电分公司 | Batch electric larceny inspection instrument |
| CN106410615A (en) * | 2015-07-30 | 2017-02-15 | 安徽圣享智能科技有限公司 | Electric energy meter measuring box with electric energy comparison |
| CN106405179A (en) * | 2015-07-30 | 2017-02-15 | 安徽圣享智能科技有限公司 | Shared energy meter concentrator |
| CN106443113A (en) * | 2016-09-06 | 2017-02-22 | 国网山东省电力公司临朐县供电公司 | Quick-mounting anti-electric larceny metering comparison detector |
| CN106526311A (en) * | 2015-09-15 | 2017-03-22 | 国网辽宁省电力有限公司营口供电公司 | Electric quantity information acquisition device and electric quantity information acquisition method |
| 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 |
| CN104951989B (en) * | 2014-03-26 | 2018-08-31 | 国家电网公司 | A kind of stealing analysis method and system |
| CN108802488A (en) * | 2018-07-26 | 2018-11-13 | 广东电网有限责任公司 | Line loss fine-grained management device and method |
| CN109387677A (en) * | 2017-08-10 | 2019-02-26 | 朱华丽 | Multifunctional reverse stealing alarming protector |
| CN109917165A (en) * | 2019-02-27 | 2019-06-21 | 南京电研电力自动化股份有限公司 | A kind of intelligent electricity anti-theft system |
| CN109950030A (en) * | 2019-02-27 | 2019-06-28 | 南京电研电力自动化股份有限公司 | A kind of Anti-steal electric transformer and electricity anti-theft method |
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| CN111476681A (en) * | 2020-04-16 | 2020-07-31 | 广东卓维网络有限公司 | Electric energy management method |
| CN112198350A (en) * | 2019-07-08 | 2021-01-08 | 浙江兆乾电力科技有限公司 | Intelligent electric meter box |
| CN112505392A (en) * | 2020-11-17 | 2021-03-16 | 广东电网有限责任公司 | Method and system for determining low-voltage electricity stealing point |
| CN112630491A (en) * | 2020-12-11 | 2021-04-09 | 国网安徽省电力有限公司黄山供电公司 | Electricity stealing positioning method for accurate arrival at home in transformer area |
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| CN103487622A (en) * | 2013-09-25 | 2014-01-01 | 国网河南省电力公司南阳供电公司 | Electric meter box device with functions of preventing electricity stealing and carrying out monitoring |
| 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 |
| CN104933273A (en) * | 2014-03-17 | 2015-09-23 | 国家电网公司 | Power-stealing prevention analysis method and device |
| CN104933273B (en) * | 2014-03-17 | 2018-03-27 | 国家电网公司 | A kind of method and device of thief-proof electroanalysis |
| CN104951989A (en) * | 2014-03-26 | 2015-09-30 | 国家电网公司 | Electricity theft analyzing method and system |
| CN104951989B (en) * | 2014-03-26 | 2018-08-31 | 国家电网公司 | A kind of stealing analysis method and system |
| CN104237626A (en) * | 2014-10-17 | 2014-12-24 | 国家电网公司 | Electricity larceny preventing monitoring device |
| CN104459249A (en) * | 2014-11-27 | 2015-03-25 | 国家电网公司 | Abnormal electricity judgment method based on current abnormality analysis |
| CN106410615A (en) * | 2015-07-30 | 2017-02-15 | 安徽圣享智能科技有限公司 | Electric energy meter measuring box with electric energy comparison |
| CN106405179A (en) * | 2015-07-30 | 2017-02-15 | 安徽圣享智能科技有限公司 | Shared energy meter concentrator |
| CN106526311A (en) * | 2015-09-15 | 2017-03-22 | 国网辽宁省电力有限公司营口供电公司 | Electric quantity information acquisition device and electric quantity information acquisition method |
| CN106291097A (en) * | 2016-07-20 | 2017-01-04 | 国网天津市电力公司 | A kind of anti-electricity-theft photovoltaic branch monitoring system |
| CN106053907A (en) * | 2016-08-17 | 2016-10-26 | 合肥耀贝软件开发有限公司 | Multi-user intelligent electric meter system based on IOT (Internet of Things) |
| CN106443113B (en) * | 2016-09-06 | 2019-04-09 | 国网山东省电力公司临朐县供电公司 | A kind of quick-mounting formula electricity stealing preventive metering Determination instrument |
| CN106443113A (en) * | 2016-09-06 | 2017-02-22 | 国网山东省电力公司临朐县供电公司 | Quick-mounting anti-electric larceny metering comparison detector |
| CN106291031A (en) * | 2016-10-27 | 2017-01-04 | 国网河北省电力公司衡水供电分公司 | Batch looks into stealing system |
| CN106370903A (en) * | 2016-10-27 | 2017-02-01 | 国网河北省电力公司衡水供电分公司 | Batch electric larceny inspection instrument |
| CN109387677A (en) * | 2017-08-10 | 2019-02-26 | 朱华丽 | Multifunctional reverse stealing alarming protector |
| CN108802488A (en) * | 2018-07-26 | 2018-11-13 | 广东电网有限责任公司 | Line loss fine-grained management device and method |
| CN109950030A (en) * | 2019-02-27 | 2019-06-28 | 南京电研电力自动化股份有限公司 | A kind of Anti-steal electric transformer and electricity anti-theft method |
| CN109917165A (en) * | 2019-02-27 | 2019-06-21 | 南京电研电力自动化股份有限公司 | A kind of intelligent electricity anti-theft system |
| CN112198350A (en) * | 2019-07-08 | 2021-01-08 | 浙江兆乾电力科技有限公司 | Intelligent electric meter box |
| CN110988420A (en) * | 2019-12-02 | 2020-04-10 | 深圳供电局有限公司 | Anti-electricity-theft system and anti-electricity-theft control method |
| CN111476681A (en) * | 2020-04-16 | 2020-07-31 | 广东卓维网络有限公司 | Electric energy management method |
| CN112505392A (en) * | 2020-11-17 | 2021-03-16 | 广东电网有限责任公司 | Method and system for determining low-voltage electricity stealing point |
| CN112630491A (en) * | 2020-12-11 | 2021-04-09 | 国网安徽省电力有限公司黄山供电公司 | Electricity stealing positioning method for accurate arrival at home in transformer area |
| CN114325020A (en) * | 2021-11-19 | 2022-04-12 | 国网内蒙古东部电力有限公司供电服务监管与支持中心 | Low-voltage distribution room branch anti-theft loss-reduction detection terminal |
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