CN107329033A - Electric energy meter house lead in detecting system and its detection method - Google Patents

Electric energy meter house lead in detecting system and its detection method Download PDF

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Publication number
CN107329033A
CN107329033A CN201710613119.XA CN201710613119A CN107329033A CN 107329033 A CN107329033 A CN 107329033A CN 201710613119 A CN201710613119 A CN 201710613119A CN 107329033 A CN107329033 A CN 107329033A
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China
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module
energy meter
current
coding
electric energy
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CN201710613119.XA
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CN107329033B (en
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金鑫
肖勇
张乐平
胡珊珊
王吉
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Research Institute of Southern Power Grid Co Ltd
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Power Grid Technology Research Center of China Southern Power Grid Co Ltd
Research Institute of Southern Power Grid Co Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/58Testing of lines, cables or conductors

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

The present invention relates to a kind of electric energy meter house lead in detecting system, including:Module, current sampling module, decoder module, coding comparing module occur for coder module, electric current;Coder module is used to form specific coding information, and module occurs for output to electric current;Electric current occurs module and produces the current signal containing coding information according to coding information, and injects in user side electric power line loop;Current sampling module is used to extract the curent change information in electric power line loop, and exports to decoder module;Decoder module forms coding information according to curent change information and exported to coding comparing module;Coding information and the coded data that prestores are carried out aspect ratio pair by coding comparing module, determine electric energy meter house lead in state.The technical scheme can be in the case where being not involved in electric power system, not having a power failure, and realization is quick and precisely detected to the correlation behavior of electric energy meter house lead in, simple to operate, efficiency high.

Description

Electric energy meter house lead in detecting system and its detection method
Technical field
The present invention relates to power system O&M technical field, more particularly to a kind of electric energy meter house lead in detecting system and its Detection method.
Background technology
Family table is not inconsistent in the same unit that problem appears in same building building mostly, is caused by the house lead in misconnection of electric energy meter, Family table is not inconsistent problem exposure and goes to past carry no weight;And page lacks the investigation work that efficient family table is not inconsistent problem on Vehicles Collected from Market Tool.
Traditional scheme needs whole unit to have a power failure when detecting electric energy meter house lead in, is investigated one by one according to cable louding, grasps Make extremely complex, and general such as newly-built community uses pre-buried hidden pipe cabling mostly, brings great difficulty to investigation work, together Shi Rongyi widens one's influence and made troubles to user.
As can be seen here, existing solution, complex operation, efficiency is low.
The content of the invention
Based on this, it is necessary to complicated for aforesaid operations, the problem of efficiency is low is there is provided a kind of detection of electric energy meter house lead in System and its detection method.
A kind of electric energy meter house lead in detecting system, including:Module, current sampling module, solution occur for coder module, electric current Code device module, coding comparing module;
By electric current the user side electric power line loop that module is connected to scene occurs for the coder module;The electric current takes Egf block connects the user side electric power line loop, and is connected to coding comparing module by decoder module;
The coder module is used to form specific coding information, and module occurs for output to electric current;The electric current occurs Module produces the current signal containing coding information according to the coding information, and injects in user side electric power line loop;
The current sampling module is used to extract the curent change information in the electric power line loop, and exports to solution Code device module;The decoder module forms coding information according to the curent change information and exported to coding comparing module;Institute State coding comparing module and the coding information and the coded data that prestores are subjected to aspect ratio pair, determine electric energy meter house lead in state.
A kind of detection method based on described electric energy meter house lead in detecting system, including:Occur using the electric current of main frame Module is inserted on the power frequency socket in user room;And using the current sampling module of slave, respectively in each user side electric power Detected on line loop, confirm receive customizing messages code when, confirm corresponding family table relation.
Above-mentioned electric energy meter house lead in detecting system and its detection method, occur module by electric current by coder module and produce The raw current signal containing coding information, and inject in user side electric power line loop, current sampling module extracts electric power line loop In curent change information by decoder module formation coding information, then entered with the coded data that prestores by encoding comparing module Row aspect ratio pair, finally determines electric energy meter house lead in state.The technical scheme can be in the feelings for being not involved in electric power system, not having a power failure Under condition, realize and simple to operate, efficiency high, which is adapted to built on stilts, quick and precisely to be detected to the correlation behavior of electric energy meter house lead in Line, the various power utilization environments such as secretly sunken cord, exempt from intervention and do not have a power failure to avoid the state of affairs from expanding, quick detection is particularly suitable for power system O&M field.
Brief description of the drawings
Fig. 1 is the electric energy meter house lead in detecting system structural representation of one embodiment;
Fig. 2 is the electric energy meter house lead in detecting system structural representation of another embodiment;
Fig. 3 is the detection method schematic diagram of the electric energy meter house lead in detecting system of one embodiment.
Embodiment
The electric energy meter house lead in detecting system of the present invention and its embodiment of detection method are illustrated below in conjunction with the accompanying drawings.
With reference to shown in Fig. 1, Fig. 1 is the electric energy meter house lead in detecting system structural representation of one embodiment, including:Coding Module, current sampling module, decoder module, coding comparing module occur for device module, electric current;
By electric current the user side electric power line loop that module is connected to scene occurs for the coder module;The electric current takes Egf block connects the user side electric power line loop (power line in figure), and is connected to encoding ratio to mould by decoder module Block;
The coder module is used to form specific coding information, and module occurs for output to electric current;The electric current occurs Module produces the current signal containing coding information according to the coding information, and injects in user side electric power line loop;
The current sampling module is used to extract the curent change information in the electric power line loop, and exports to solution Code device module;The decoder module forms coding information according to the curent change information and exported to coding comparing module;Institute State coding comparing module and the coding information and the coded data that prestores are subjected to aspect ratio pair, determine electric energy meter house lead in state.
Electric energy meter house lead in detecting system based on above-described embodiment, occurs module by electric current by coder module and produces The raw current signal containing coding information, and inject in user side electric power line loop, current sampling module extracts electric power line loop In curent change information by decoder module formation coding information, then entered with the coded data that prestores by encoding comparing module Row aspect ratio pair, finally determines electric energy meter house lead in state.The technical scheme can be in the feelings for being not involved in electric power system, not having a power failure Under condition, realize and simple to operate, efficiency high, which is adapted to built on stilts, quick and precisely to be detected to the correlation behavior of electric energy meter house lead in Line, the various power utilization environments such as secretly sunken cord, exempt from intervention and do not have a power failure to avoid the state of affairs from expanding, quick detection is particularly suitable for power system O&M field.
In one embodiment, with reference to Fig. 1, the electric energy meter house lead in detecting system can also include result treatment module, For producing corresponding cue according to the comparison result of the coding comparing module;Can be timely by result treatment module The result that prompting user detects, is easy to operate with.
In one embodiment, the coding information includes condition code and information code;Wherein, condition code is used for decoder mould Block is captured, and information code is used to carry customizing messages;By condition code, follow-up decoder module can be conducive to be caught The current signal of injection is obtained, the bit error rate can be reduced by information code.
In one embodiment, for the coder module, coding information output, feeding can periodically be produced.Enter One step, module occurs for the electric current according to the coding information, periodically triggers electronic switch, break-make using encoded signal Electronic load, injects the current signal of the change containing coding information in user side electric power line loop.
In one embodiment, the current sampling module uses non-access current clamp in user side electric power line loop Current information extraction is carried out, current signal is converted into by voltage signal by sample resistance and exported to decoder module;The solution Code device module is sampled to the voltage signal, and forms coding information after sampled data is quantified;After above-mentioned processing, It is easy to sampled data being quantified as coding information, improves data processing accuracy.
In one embodiment, the coding information of the coding comparing module Rcv decoder module input;By coding letter Information code in breath match comparing with prestored information code;If matching compares unsuccessful, generation decoding enabling signal feeding Decoder module is again started up decoding;Further, if matching is compared successfully, the coding comparing module will determine that result is inputted Result treatment module, the result treatment module exports acousto-optic hint signal.
By above-described embodiment scheme, matching compares unsuccessful continuation decoding data, and circulation matching is matched to compare and successfully said It is bright to detect corresponding signal specific, pass through acousto-optic hint user.
In one embodiment, with reference to shown in Fig. 2, Fig. 2 is the electric energy meter house lead in detecting system knot of another embodiment Module composition main frame, the current sampling module, decoder module and volume occur for structure schematic diagram, the coder module and electric current Code comparing module constitutes slave;The electric current occurs module and is connected on the power frequency socket of interior, and the current sampling module connects Connect on each user side electric power line loop in electricity box.
Designed by main frame and slave, ease of use can be improved, main frame can be inserted into the power frequency in user room On socket, detected using slave on each user side electric power line loop in electricity box, the ammeter in centralized electricity box User side detects code current, it is determined that accurate family table corresponding relation.For example, determining to report the ammeter belonging to user for repairment, without power-off It can realize and electric energy meter house lead in misconnection failure is accurately detected in the case where not cutting off user's power supply.
With reference to shown in Fig. 3, Fig. 3 is the utilization electric energy meter house lead in detection system provided in an embodiment of the present invention of one embodiment The detection method schematic diagram of system, it is characterised in that including:Occurs the power frequency that module is inserted into user room using the electric current of main frame On socket;And using the current sampling module of slave, detected, confirmed on each user side electric power line loop respectively When receiving customizing messages code, corresponding family table relation is confirmed.
For example, in for the application of the investigation of electric energy meter house lead in misconnection (family table is not inconsistent) problem, by electric energy meter house lead in Detecting system is divided into main frame and slave (hand-held receiving device).Main frame is connected directly between on the power frequency socket reported for repairment in user room, The current signal of specific frequency and coding is produced, the current signal receives and parses through the signal by hand-held receiving device, and then really Whether the loop that the fixed electric current occurs belongs to specific electric energy meter.Because the current signal only appears in unique electric energy meter The end of incoming cables of leading-out terminal and this unit meter, without in the outlet port of other electric energy meters, with uniqueness, thus can To realize being accurately positioned for family table.
As can be seen here, there is the principle of independence using the user side loop current of different ammeters, can be produced at failure end The current signal of raw specific coding, detects code current, so that it is determined that reporting for repairment by the ammeter user side in centralized electricity box Ammeter belonging to user, can be realized to electric energy meter house lead in misconnection without power-off in the case where not cutting off user's power supply Failure is accurately detected.Due to the state to electric energy meter house lead in can be realized in the case where being not involved in electric power system, not having a power failure Quick and precisely detect;The various power utilization environments such as it is particularly adapted to overhead line, secretly sunkens cord, exempts from intervention and do not have a power failure to avoid the state of affairs from expanding, Quick detection, is particularly suitable for power system O&M field.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.

Claims (10)

1. a kind of electric energy meter house lead in detecting system, it is characterised in that including:Coder module, electric current occur module, electric current and taken Egf block, decoder module, coding comparing module;
By electric current the user side electric power line loop that module is connected to scene occurs for the coder module;The current sampling mould Block connects the user side electric power line loop, and is connected to coding comparing module by decoder module;
The coder module is used to form specific coding information, and module occurs for output to electric current;Module occurs for the electric current The current signal containing coding information is produced according to the coding information, and is injected in user side electric power line loop;
The current sampling module is used to extract the curent change information in the electric power line loop, and exports to decoder Module;The decoder module forms coding information according to the curent change information and exported to coding comparing module;It is described to compile The coding information and the coded data that prestores are carried out aspect ratio pair by code comparing module, determine electric energy meter house lead in state.
2. electric energy meter house lead in detecting system according to claim 1, it is characterised in that also including result treatment module, For producing corresponding cue according to the comparison result of the coding comparing module.
3. electric energy meter house lead in detecting system according to claim 1, it is characterised in that the coding information includes feature Code and information code;Wherein, condition code is captured for decoder module, and information code is used to carry customizing messages.
4. electric energy meter house lead in detecting system according to claim 3, it is characterised in that the coder module is periodically Produce coding information output.
5. electric energy meter house lead in detecting system according to claim 4, it is characterised in that module foundation occurs for the electric current The coding information, periodically triggers electronic switch, break-make electronic load, in user side electric power line loop using encoded signal The current signal of middle change of the injection containing coding information.
6. electric energy meter house lead in detecting system according to claim 1, it is characterised in that the current sampling module is used Non-access current clamp carries out current information extraction in user side electric power line loop, is changed current signal by sample resistance Exported into voltage signal to decoder module;The decoder module is sampled to the voltage signal, and by sampled data Coding information is formed after quantization.
7. electric energy meter house lead in detecting system according to claim 3, it is characterised in that the coding comparing module is received The coding information of decoder module input;Information code in coding information match comparing with prestored information code;If matching Comparison is unsuccessful, then produces decoding enabling signal feeding decoder module and be again started up decoding.
8. electric energy meter house lead in detecting system according to claim 7, it is characterised in that described if matching is compared successfully Coding comparing module will determine that result input results processing module, and the result treatment module exports acousto-optic hint signal.
9. the electric energy meter house lead in detecting system according to any one of claim 1 to 8, it is characterised in that the encoder Module composition main frame occurs for module and electric current, and the current sampling module, decoder module and encoding ratio are to module composition slave;
The electric current occurs module and is connected on the power frequency socket of interior, each use in the current sampling module connection electricity box On the electric power line loop of family side.
10. a kind of detection method of the electric energy meter house lead in detecting system based on described in claim 9, it is characterised in that including: Occur module using the electric current of main frame to be inserted on the power frequency socket in user room;And using the current sampling module of slave, point Do not detected on each user side electric power line loop, confirm receive customizing messages code when, confirm corresponding family table Relation.
CN201710613119.XA 2017-07-25 2017-07-25 Electric energy meter house lead-in line detection system and detection method thereof Active CN107329033B (en)

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
CN109782120A (en) * 2019-03-14 2019-05-21 张艺博 A kind of low-voltage customer line using ultra-low frequency signal is visited one house after another detection method
CN109959840A (en) * 2019-02-15 2019-07-02 广东电网有限责任公司 A kind of user's table rapid aligning device
CN111458582A (en) * 2020-04-14 2020-07-28 无锡市恒通电器有限公司 Household meter relationship detection method based on intelligent electric meter load identification technology
CN111474428A (en) * 2020-04-14 2020-07-31 无锡市恒通电器有限公司 Household meter relation detection device based on intelligent electric meter load identification technology

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CN106483424A (en) * 2016-12-01 2017-03-08 宜兴市森维电子有限公司 A kind of circuit is registered one's residence mistake proofing detector and its detection method
CN207148254U (en) * 2017-07-25 2018-03-27 南方电网科学研究院有限责任公司 Electric energy meter house lead in detection device

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CN203241474U (en) * 2013-04-08 2013-10-16 河南省电力公司驻马店供电公司 Coding-decoding phase check device for electric power circuit
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Cited By (4)

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Publication number Priority date Publication date Assignee Title
CN109959840A (en) * 2019-02-15 2019-07-02 广东电网有限责任公司 A kind of user's table rapid aligning device
CN109782120A (en) * 2019-03-14 2019-05-21 张艺博 A kind of low-voltage customer line using ultra-low frequency signal is visited one house after another detection method
CN111458582A (en) * 2020-04-14 2020-07-28 无锡市恒通电器有限公司 Household meter relationship detection method based on intelligent electric meter load identification technology
CN111474428A (en) * 2020-04-14 2020-07-31 无锡市恒通电器有限公司 Household meter relation detection device based on intelligent electric meter load identification technology

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