CN107592137A - The noise jamming automated detection method and system of a kind of power line carrier module - Google Patents

The noise jamming automated detection method and system of a kind of power line carrier module Download PDF

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Publication number
CN107592137A
CN107592137A CN201710974390.6A CN201710974390A CN107592137A CN 107592137 A CN107592137 A CN 107592137A CN 201710974390 A CN201710974390 A CN 201710974390A CN 107592137 A CN107592137 A CN 107592137A
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China
Prior art keywords
platelet
test
detection
communication
light current
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Withdrawn
Application number
CN201710974390.6A
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Chinese (zh)
Inventor
滕永兴
董得龙
孙淑娴
于学均
李野
何黎菲
朱逸群
曹国瑞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
State Grid Tianjin Electric Power Co Ltd
Electric Power Research Institute of State Grid Tianjin Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Tianjin Electric Power Co Ltd
Electric Power Research Institute of State Grid Tianjin Electric Power Co Ltd
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Application filed by State Grid Corp of China SGCC, State Grid Tianjin Electric Power Co Ltd, Electric Power Research Institute of State Grid Tianjin Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201710974390.6A priority Critical patent/CN107592137A/en
Publication of CN107592137A publication Critical patent/CN107592137A/en
Withdrawn legal-status Critical Current

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Abstract

It is as follows using the noise jamming automated detection system of power line carrier module, detailed process the present invention relates to a kind of noise jamming automated detection method of power line carrier module:By netting twine, mode is connected to ethernet communication platelet in a manner of TCP, order conversion is distributed to Control platelet, light current voltage detecting platelet, light current current detecting platelet, 232 communication platelets by Ethernet platelet from TC BUS agreements, Control platelet, light current voltage detecting platelet, light current current detecting platelet, 232 communication platelets perform the order for belonging to this platelet according to tooling communication agreement, it is respectively completed respective detection project, and upper computer detection software is replied, whether upper computer detection software passes through according to reply result judgement.A modular test cell body is used as in the whole Design of Test System of the present invention, based on the test fixture system specially designed, coordinates corresponding intelligent machine device, there is very high integrated level and flexibility, while greatly improve module testing efficiency.

Description

The noise jamming automated detection method and system of a kind of power line carrier module
Technical field
The invention belongs in electrical measurement, Electric Energy Metering Technology field, especially a kind of noise jamming of power line carrier module from Dynamicization detecting system.
Background technology
The characteristic of channel of low-voltage power line is considerably complicated, have changing load, noise jamming are strong, fading channel is big, letter The features such as road is delayed, and these characteristics have considerable influence to the carrier communication success rate of intelligent electric meter.In power line carrier system The problem of how preventing influence of the environment in the external world to test system from being one extremely important in test, Quantitative Study is commonly used The reason for influence of resident's electrical equipment to low-voltage powerline carrier communication and rule.The success rate of carrier communication mainly takes Certainly in the signal to noise ratio requirement and the receiving sensitivity of communication chip that receive carrier signal.Due to mains by harmonics coefficient regulation, electric energy The limitation of table volume and cost, carrier signaling power can not possibly be excessive, while noise and its complexity on power network, so receiving End carrier signal is often less than 1mV, and is flooded by substantial amounts of noise, leads to so meter reading success rate depends primarily on carrier wave Believe the performance of chip.
The content of the invention
It is an object of the invention in place of overcome the deficiencies in the prior art, there is provided a kind of noise jamming of power line carrier module Automated detection system and system, a modular test cell body are used as in whole Design of Test System, with six sets or four It is main body to cover the test fixture system specially designed, coordinates corresponding intelligent machine device, with very high integrated level and flexibly Property.
The present invention solves its technical problem and takes following technical scheme to realize:
A kind of noise jamming automated detection method of power line carrier module, it is characterised in that:Using power line carrier module Noise jamming automated detection system, detailed process is as follows:Start test, by netting twine in a manner of TCP mode be connected to Too Network Communication platelet, Ethernet platelet is order conversion from TC-BUS agreements are distributed to Control platelet, light current voltage is examined Survey platelet, light current current detecting platelet, 232 communication platelets, Control platelet, light current voltage detecting platelet, light current electric current Detection platelet, 232 communication platelets perform the order for belonging to this platelet according to tooling communication agreement, are respectively completed respective detection Mesh, and upper computer detection software is replied, whether upper computer detection software passes through according to reply result judgement.
Moreover, the content of the detection project includes outward appearance test, testing protocol consistency, quiescent dissipation test, dynamic Power consumption test, key pin level and state verification, short message test, long message test, the test of LED reiving/transmitting state.
A kind of noise jamming automated detection system of power line carrier module, it is characterised in that:Including detection station module, Branch road, interchanger, industrial computer and power supply are tested, four three-phase meter carrier wave moulds to be detected are carried simultaneously in detection station module Block, detection station are connected to four test branch roads, and four test branch roads are connected respectively to industrial computer;Detection station module And four test branch roads connect general supply and are powered respectively, each branch road of testing is respectively arranged with independent Switching Power Supply.
Moreover, it is described test branch road include three-phase isolator, three-phase attenuator, relay queue, the queue of carrier wave copy controller, 232 communication platelets, ethernet communication platelet, pin state-detection platelet, Control platelet, light current voltage detecting platelet with And light current current detecting platelet, ethernet communication platelet connect industrial computer by netting twine, the ethernet communication platelet connects respectively Two Control platelets,
One Control platelet is connected to three-phase attenuator, a port two three-phases of series connection of the three-phase attenuator Isolator, three-phase isolator prevent each test system from influencing each other to isolate carrier signal;Another end of three-phase attenuator Mouth connection relay queue, two pins connection carrier wave copy controller queue of relay queue, the carrier wave copy controller queue pass through The communication platelet bi-directional data intercommunication of data wire connection 232;
Another Control platelet connects pin state-detection platelet, light current voltage detecting platelet and light current respectively Current detecting platelet, pin state-detection platelet are connected to detection station module by signal wire, detect one of three-phase meter The state of carrier module.
Moreover, it is described 232 communication platelet, ethernet communication platelet, pin state-detection platelet, frock power supply platelet, after Electrical equipment control platelet, light current voltage detecting platelet and light current current detecting platelet are integrated on circuit boards.
Moreover, the test branch road is also equipped with frock power supply platelet, frock power supply platelet connection general supply.
The advantages and positive effects of the present invention are:
1st, each product corresponds to a set of test fixture, and need to test content can realize test by integrated working plate.
2nd, the corresponding attenuator of every suit working plate reduces noise by level point regulation to given normal range (NR).
3rd, two isolators of series connection after attenuator corresponding to every suit working plate, for intrusively circulation, prevent various instrument Signal transmission receives influence between device, effectively reduces level of noise.
4th, a modular test cell body is used as in whole Design of Test System of the invention, with the survey specially designed Examination fixture system is main body, coordinates corresponding intelligent machine device, has very high integrated level and flexibility, greatly improves simultaneously Module testing efficiency.
Brief description of the drawings
Fig. 1 is single-phase meter carrier module test system schematic diagram of the present invention;
Fig. 2 is three-phase meter carrier module test system schematic diagram of the present invention.
Embodiment
Below in conjunction with the accompanying drawings and the invention will be further described by specific embodiment, and following examples are descriptive , it is not limited, it is impossible to which protection scope of the present invention is limited with this.
A kind of noise jamming automated detection system of power line carrier module, including detection station module, test branch road, friendship Change planes, industrial computer and power supply, carry four three-phase meter carrier modules to be detected, detection station in detection station module simultaneously Four test branch roads are connected to, four test branch roads are connected respectively to industrial computer;
Detection station module and four test branch roads connect power supply and are powered respectively, and the present embodiment uses 24V power supplys, Provided with total power switch, and each test branch road is respectively arranged with independent Switching Power Supply.
The structure of four test branch roads is identical, and each branch road of testing includes three-phase isolator, three-phase attenuator, relay team Row, the queue of carrier wave copy controller, 232 communication platelets, ethernet communication platelet, pin state-detection platelet, frock power supply platelet, after Electrical equipment control platelet, light current voltage detecting platelet and light current current detecting platelet,
Above-mentioned 232 communication platelet, ethernet communication platelet, pin state-detection platelet, frock power supply platelet, relay control Platelet, light current voltage detecting platelet and light current current detecting platelet processed are integrated on circuit boards, wherein, frock power supply platelet connects Power supply is connect, for providing electric energy to other platelets on circuit board;
Ethernet communication platelet connects industrial computer by netting twine, and the ethernet communication platelet connects two relay controls respectively Platelet processed,
Wherein, a Control platelet is connected to three-phase attenuator, a port series connection two of the three-phase attenuator Individual three-phase isolator, three-phase isolator prevent each test system from influencing each other to isolate carrier signal;Three-phase attenuator it is another A port connects relay queue, two pins connection carrier wave copy controller queue of relay queue, the carrier wave copy controller team Row pass through the communication platelet bi-directional data intercommunication of data wire connection 232;
Another Control platelet connects pin state-detection platelet, light current voltage detecting platelet and light current respectively Current detecting platelet, pin state-detection platelet are connected to detection station module by signal wire, detect one of three-phase meter The state of carrier module.
The method of testing of detecting system, detailed process are as follows:Host computer start test, by netting twine in a manner of TCP mode It is connected to ethernet communication platelet, order conversion is distributed to Control platelet, weak by Ethernet platelet from TC-BUS agreements Piezoelectric voltage detection platelet, light current current detecting platelet, 232 communication platelets, each platelet performs according to tooling communication agreement belongs to this The order of platelet, and upper computer detection software is replied, whether upper computer detection software passes through according to reply result judgement.
Detection project content includes:Outward appearance test, testing protocol consistency, quiescent dissipation test, dynamic power consumption test, pass Key pin level and state verification, short message test, long message test, the test of LED reiving/transmitting state.
1) outward appearance is tested, test mode:Whether meet specification with CCD high-definition camera photographic analysis module outward appearances.
2) testing protocol consistency, test mode:Control module issues DL/T645 messages, and replys DL/T645 to module Message.
3) quiescent dissipation is tested, test mode:By to while sending (not actuated carrier wave) under tested module quiescent operation Strong and weak electricity voltage and current carries out real-time sampling, and in summary sampling converses the quiescent dissipation of module.
4) dynamic power consumption is tested, test mode:By to strong (in carrier wave transmission process) under tested module dynamic duty Light current voltage and current carries out real-time sampling, and in summary sampling converses the quiescent dissipation of module.
5) key pin and level state test, test mode:By the sampling functions of pin state detection unit and The high low state of level of input and output control function detection module key pin and company's weldering situation with pin around.
6) short message is tested, test mode:Pass through the vendor code of copy controller read module.Returning result and test system Interior is unanimously qualified;Otherwise to be unqualified.
7) long message is tested, test mode:Message of the data field length for 200 bytes is sent to module by copy controller. The correct test result that returns is qualified;Otherwise to be unqualified.
8) LED reiving/transmitting state is tested, test mode:During module receives and dispatches long message, with CCD high-definition cameras Catch the flicker state of indicator lamp.Lamp is received as green, it is red to send lamp, and the left and right order for receiving and dispatching lamp is correctly conjunction Lattice;Otherwise to be unqualified.
Although disclosing embodiments of the invention and accompanying drawing for the purpose of illustration, those skilled in the art can manage Solution:Do not departing from the present invention and spirit and scope of the appended claims in, it is various replace, change and modifications all be it is possible, Therefore, the scope of the present invention is not limited to embodiment and accompanying drawing disclosure of that.

Claims (6)

  1. A kind of 1. noise jamming automated detection method of power line carrier module, it is characterised in that:Using power line carrier module Noise jamming automated detection system, detailed process are as follows:Start test, mode is connected to ether in a manner of TCP by netting twine Order conversion is distributed to Control platelet, light current voltage detecting by Network Communication platelet, Ethernet platelet from TC-BUS agreements Platelet, light current current detecting platelet, 232 communication platelets, Control platelet, light current voltage detecting platelet, the inspection of light current electric current Survey platelet, 232 communication platelets perform the order for belonging to this platelet according to tooling communication agreement, are respectively completed respective detection Mesh, and upper computer detection software is replied, whether upper computer detection software passes through according to reply result judgement.
  2. 2. the noise jamming automated detection method of power line carrier module according to claim 1, it is characterised in that:It is described The content of detection project includes outward appearance test, testing protocol consistency, quiescent dissipation test, dynamic power consumption test, key pin Level and state verification, short message test, long message test, the test of LED reiving/transmitting state.
  3. A kind of 3. noise jamming automated detection system of power line carrier module, it is characterised in that:Including detection station module, survey Branch road, interchanger, industrial computer and power supply are tried, four three-phase meter carrier wave moulds to be detected are carried simultaneously in detection station module Block, detection station are connected to four test branch roads, and four test branch roads are connected respectively to industrial computer;Detection station module And four test branch roads connect general supply and are powered respectively, each branch road of testing is respectively arranged with independent Switching Power Supply.
  4. 4. the noise jamming automated detection system of power line carrier module according to claim 3, it is characterised in that:It is described Testing branch road includes three-phase isolator, three-phase attenuator, relay queue, the queue of carrier wave copy controller, 232 communication platelets, ether Network Communication platelet, pin state-detection platelet, Control platelet, light current voltage detecting platelet and light current current detecting are small Plate, ethernet communication platelet connect industrial computer by netting twine, and it is small that the ethernet communication platelet connects two Controls respectively Plate,
    One Control platelet is connected to three-phase attenuator, and a port of the three-phase attenuator, which is connected two three, to be isolated Device, three-phase isolator prevent each test system from influencing each other to isolate carrier signal;Another port of three-phase attenuator connects Contact relay queue, two pins connection carrier wave copy controller queue of relay queue, the carrier wave copy controller queue pass through data The communication platelet bi-directional data intercommunication of line connection 232;
    Another Control platelet connects pin state-detection platelet, light current voltage detecting platelet and light current electric current respectively Platelet is detected, pin state-detection platelet is connected to detection station module by signal wire, detects one of three-phase meter carrier wave The state of module.
  5. 5. the noise jamming automated detection system of power line carrier module according to claim 3, it is characterised in that:It is described 232 communication platelets, ethernet communication platelet, pin state-detection platelet, frock power supply platelet, Control platelet, light current Voltage detecting platelet and light current current detecting platelet are integrated on circuit boards.
  6. 6. the noise jamming automated detection system of power line carrier module according to claim 3, it is characterised in that:It is described Test branch road is also equipped with frock power supply platelet, frock power supply platelet connection general supply.
CN201710974390.6A 2017-10-19 2017-10-19 The noise jamming automated detection method and system of a kind of power line carrier module Withdrawn CN107592137A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109547063A (en) * 2018-11-12 2019-03-29 国网天津市电力公司电力科学研究院 A kind of carrier signal analysis method based on typical low pressure power line platform area
CN110444005A (en) * 2019-08-08 2019-11-12 国网新疆电力有限公司电力科学研究院 Low Voltage Power Line Carrier Record System interference free performance test method and system
CN112260773A (en) * 2020-10-24 2021-01-22 青岛鼎信通讯股份有限公司 Medium-voltage carrier communication equipment testing device based on bus communication

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CN105551231A (en) * 2015-12-30 2016-05-04 国网浙江省电力公司电力科学研究院 Collector detection device
CN106405226A (en) * 2016-08-31 2017-02-15 浙江恒业电子有限公司 Harmonic wave extraction-based intelligent ammeter system for frequency spectrum leakage suppression

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Publication number Priority date Publication date Assignee Title
CN202340226U (en) * 2011-06-30 2012-07-18 珠海中慧微电子有限公司 Fully automatic test device for performance indexes of power line carrier communication
CN103236892A (en) * 2013-04-18 2013-08-07 国家电网公司 Carrier communication testing system
CN103777172A (en) * 2013-12-27 2014-05-07 珠海中慧微电子有限公司 Reliability testing system of intelligent electric meter and method thereof
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109547063A (en) * 2018-11-12 2019-03-29 国网天津市电力公司电力科学研究院 A kind of carrier signal analysis method based on typical low pressure power line platform area
CN110444005A (en) * 2019-08-08 2019-11-12 国网新疆电力有限公司电力科学研究院 Low Voltage Power Line Carrier Record System interference free performance test method and system
CN112260773A (en) * 2020-10-24 2021-01-22 青岛鼎信通讯股份有限公司 Medium-voltage carrier communication equipment testing device based on bus communication

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Application publication date: 20180116