WO2013010447A1 - Dispositif d'essai de communication sur courant porteur - Google Patents

Dispositif d'essai de communication sur courant porteur Download PDF

Info

Publication number
WO2013010447A1
WO2013010447A1 PCT/CN2012/078477 CN2012078477W WO2013010447A1 WO 2013010447 A1 WO2013010447 A1 WO 2013010447A1 CN 2012078477 W CN2012078477 W CN 2012078477W WO 2013010447 A1 WO2013010447 A1 WO 2013010447A1
Authority
WO
WIPO (PCT)
Prior art keywords
carrier
test
carrier communication
communication
network
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2012/078477
Other languages
English (en)
Chinese (zh)
Inventor
刘宣
祝恩国
叶阿辽沙
常蕾
夏怡虹
唐悦
刘岩
王燕华
孟静
潘卫红
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.)
China Electric Power Research Institute Co Ltd CEPRI
State Grid Corp of China SGCC
Original Assignee
China Electric Power Research Institute Co Ltd CEPRI
State Grid Corp of China SGCC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Electric Power Research Institute Co Ltd CEPRI, State Grid Corp of China SGCC filed Critical China Electric Power Research Institute Co Ltd CEPRI
Publication of WO2013010447A1 publication Critical patent/WO2013010447A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5429—Applications for powerline communications
    • H04B2203/5433—Remote metering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5462—Systems for power line communications
    • H04B2203/5495—Systems for power line communications having measurements and testing channel

Definitions

  • the present invention relates to test equipment and, in particular, to carrier communication test equipment.
  • the collection equipment installed by power companies for collecting low-voltage user power information widely uses low-voltage power line carrier communication.
  • Carrier communication can use the existing low-voltage power line as the communication channel, and has the advantages of wide communication coverage, convenient use, no need to invest in building channels, and no follow-up costs.
  • the carrier communication channel network topology is complex, the channel parameters change at all times, the harmonic interference generated by various nonlinear loads is severe, the characteristic impedance is not matched, and the communication quality is easily affected by the region and time period, and it is difficult to ensure a stable communication effect.
  • power companies need to obtain good communication effects and put forward higher requirements on output signal levels.
  • communication between collection terminals and carrier energy meters is required. Performance is rigorously tested.
  • the requirements for communication quality of power users' power information collection system are continuously improved. It is necessary to conduct a comprehensive test on the communication performance of the collection terminal and the carrier energy meter in strict accordance with the parameters and indicators of the low-voltage power line carrier communication. In order to improve the power line carrier communication application environment, a stable communication effect is obtained, and the power user information acquisition system for power users is better served.
  • the object of the present invention is to provide a carrier communication test device for testing the communication performance between the acquisition terminal and the carrier power meter, and proposes to construct a low-voltage power line carrier communication channel inside the test device.
  • the design scheme enables the system to statistically communicate the communication results and measure the channel parameters in the state of continuous communication, and obtain the index parameters of the current carrier communication channel, so that the low-voltage power line carrier communication device meets the requirements of relevant specifications, in order to accelerate the promotion of power users.
  • Electrical information collection systems and strong smart grid construction provide technical support.
  • the invention provides a carrier communication test device, which is improved in that it comprises a test bench body and a computer host, and the test bench body and the computer host establish a connection through the Ethernet, and the test computer body is controlled by operating the computer host to change Channel parameters and collect test information.
  • the first preferred carrier communication test device the test bench body is powered by a power line, a programmable attenuator, an inherent attenuation network, an impedance network, a signal generator, a spectrum analyzer, an oscilloscope, an industrial computer and a table
  • the purification power supply is connected to the acquisition terminal and the carrier table by the AC/DC conversion, and the phase difference is maintained by the phase locked loop between the two power lines;
  • the signal generator is connected as a controllable noise source to the power line on the side of the acquisition terminal and the side of the carrier;
  • the spectrum analyzer and the oscilloscope are connected as measurement instruments to the side of the acquisition terminal and the side of the carrier
  • the power line; the programmable attenuator, the impedance network, the signal generator, the spectrum analyzer and the oscilloscope are directly controlled by the industrial computer.
  • the watch station provides
  • the inherent attenuation network provides a fixed attenuation value between two power lines phase-locked by a phase locked loop to prevent a phase difference from being generated when the phase locked loop is lost. Damage to the programmed attenuator.
  • the impedance components in the impedance network are connected by a relay to form a matrix, and the impedance of the network connection can be changed by the switch relay to adjust the impedance.
  • the fourth preferred carrier communication test device provided by the present invention provides sixteen epitopes, each of which provides two RS-485 communication interfaces, and provides three-phase power supply before and after the table. Four-wire wiring.
  • the carrier communication test equipment consists of a test bench body and a computer host.
  • the test bench body and the computer host establish a connection through the Ethernet, control the test bench body by operating the computer host, change channel parameters and collect test information.
  • the test bench consists of a clean power supply, a programmable attenuator, an inherent attenuation network, an impedance network, a signal generator, a spectrum analyzer, an oscilloscope, an industrial computer, and a table.
  • the main function of the test bench is to realize the bidirectional controllable and measurable power line carrier communication channel from the acquisition terminal to the carrier energy meter, and test the communication capability of the acquisition terminal and the carrier energy meter in different channel conditions and the influence on the channel.
  • the collection terminal needs to communicate with the carrier energy meter several times. Each successful communication includes the collection terminal transmission, the carrier energy meter reception, the carrier energy meter transmission, and the collection terminal reception. The information needs to complete the downlink and uplink. Two transfers.
  • the acquisition system main station is turned on in the computer host, and the connection with the collection terminal is established through GPRS, Ethernet or serial port, and the instruction for collecting the specific carrier energy meter data is sent to the collection terminal.
  • the collecting terminal After receiving the command, the collecting terminal sends a meter reading message to a specific carrier energy meter in a carrier mode, and arrives at the carrier energy meter after noise injection, channel attenuation, and impedance change.
  • the carrier energy meter normally receives the message, it returns the corresponding information to the collection terminal, and also passes through the process of noise injection, channel attenuation, and impedance change.
  • the collecting terminal can receive the return message normally, and the uplink to the collecting system main station and the parsing is correct, it is determined that the communication is successful.
  • the communication critical index of the communication system composed of the current collection terminal and the carrier energy meter can be determined.
  • the cleaned power supply is connected to the acquisition terminal and the carrier table by two AC power lines, and the phase locked loop is maintained between the two power lines.
  • the programmable attenuator, the intrinsic attenuation network, and the impedance network are connected in series between two power lines.
  • the signal generator is used as a controllable noise source to access the power line on the acquisition terminal side and the carrier side.
  • the spectrum analyzer and the oscilloscope are used as measuring instruments to access the power lines on the acquisition terminal side and the carrier side.
  • the programmable attenuator, impedance network, signal generator, spectrum analyzer and oscilloscope are directly controlled by the industrial computer.
  • the watch station provides power line access to the carrier table.
  • the intrinsic attenuation network provides a fixed attenuation value between the two power lines phase-locked by the phase-locked loop to prevent the phase difference from being phase-locked and causing damage to the programmable attenuator due to the phase difference.
  • the carrier communication test device provided by the present invention has the following advantages:
  • the carrier communication test system can simulate the scene noise by the signal generator
  • the carrier communication test system can control the attenuation and impedance to simulate the live transmission channel
  • the carrier communication test system performs a fixed test process through the industrial computer to ensure the repeatability and reproducibility of the test results.
  • FIG. 1 is a schematic diagram of a hardware connection mode of a test station body of a carrier communication test device provided by the present invention:
  • the carrier communication test device of the embodiment includes a test bench body and a computer host, and a test bench body. Establish a connection with the host computer via Ethernet, control the test bench by operating the host computer, change channel parameters and collect test information.
  • the test bench body is composed of a purifying power source connected by a power line, a programmable attenuator, an intrinsic attenuation network, an impedance network, a signal generator, a spectrum analyzer, an oscilloscope, an industrial computer and a watch table; the purifying power source is respectively converted by AC/DC conversion, respectively
  • the power line is connected to the collecting terminal and the carrier table, and the phase locked loop is maintained in phase synchronization between the two power lines;
  • the programmable attenuator, the inherent attenuation network, and the impedance network are connected in series between the two power lines;
  • the controllable noise source is connected to the power line on the collecting terminal side and the carrier side;
  • the spectrum analyzer and the oscilloscope are used as measuring instruments to access the power line of the collecting terminal side and the carrier side;
  • the spectrum analyzer and oscilloscope are directly controlled by the industrial computer.
  • the watch station
  • the intrinsic attenuation network provides a fixed attenuation value between the two power lines phase-locked by the phase-locked loop to prevent the phase difference from being phase-locked and causing damage to the programmable attenuator due to the phase difference.
  • the impedance components are connected by a relay to form a matrix, and the impedance of the network connection can be changed by switching the relay to adjust the impedance.
  • the table provides sixteen epitopes, each of which provides two RS-485 communication interfaces, and provides three-phase four-wire wiring for power supply before and after the table.
  • the acquisition terminal establishes a communication connection with the acquisition system main station through the GPRS, Ethernet or serial port, and sends an instruction for collecting the specific carrier electric energy table data to the collection terminal.
  • the collecting terminal After receiving the command, the collecting terminal sends a meter reading message to a specific carrier energy meter in a carrier mode, and arrives at the carrier energy meter after noise injection, channel attenuation, and impedance change.
  • the carrier energy meter After the carrier energy meter receives the message normally, it returns the corresponding information to the collection terminal, and also passes through the process of noise injection, channel attenuation and impedance change.
  • the receiving terminal After the receiving terminal receives the return message normally, it goes up to the collecting system main station and the parsing is correct, then it is determined that the communication is successful.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)

Abstract

La présente invention concerne un dispositif d'essai de communication sur courant porteur, caractérisé par le fait qu'il comprend un corps de carte d'essai et un ordinateur central, le corps de carte d'essai établissant une connexion avec l'ordinateur central via l'Ethernet. Le corps de carte d'essai est commandé en ordonnant à l'ordinateur central de modifier des paramètres du canal et d'acquérir des informations d'essai. Le dispositif teste les performances de communication entre un terminal d'acquisition et un compteur électrique à courants porteurs. Une solution de conception pour l'établissement d'un canal de communication sur courant porteur à basse tension avec un dispositif d'essai est proposée, si bien que le système compte les résultats de la communication dans un état de communication continue et teste les paramètres du canal pour obtenir des paramètres d'index du canal de communication sur courant porteur, si bien que le dispositif de communication sur courant porteur à basse tension répond aux exigences des spécifications applicables et qu'un support technique est proposé pour accélérer la construction du système d'acquisition d'informations électriques sur l'utilisateur et d'un réseau intelligent robuste.
PCT/CN2012/078477 2011-07-15 2012-07-11 Dispositif d'essai de communication sur courant porteur Ceased WO2013010447A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110197957.6 2011-07-15
CN201110197957.6A CN102255637B (zh) 2011-07-15 2011-07-15 一种载波通信测试设备

Publications (1)

Publication Number Publication Date
WO2013010447A1 true WO2013010447A1 (fr) 2013-01-24

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WO (1) WO2013010447A1 (fr)

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CN103236892A (zh) * 2013-04-18 2013-08-07 国家电网公司 一种载波通信测试系统
CN105162534A (zh) * 2015-09-25 2015-12-16 国网天津市电力公司 一种集中器无线公网通信测试系统及方法
CN107835037A (zh) * 2017-12-06 2018-03-23 珠海格力电器股份有限公司 电力载波频率控制方法及装置
CN110554940A (zh) * 2019-08-02 2019-12-10 安徽南瑞中天电力电子有限公司 一种基于电能表通信串口检测工装和方法
CN111130597A (zh) * 2019-12-18 2020-05-08 国网北京市电力公司 一种hplc通信单元检测系统
CN111614376A (zh) * 2020-03-05 2020-09-01 国网青海省电力公司果洛供电公司 一种基于中压载波通讯装置的中压电力线阻抗测试系统
CN112242858A (zh) * 2020-11-05 2021-01-19 南方电网科学研究院有限责任公司 一种电能表载波通信模块测试方法和装置
CN112763003A (zh) * 2020-10-14 2021-05-07 陕西阳光时代电气有限公司 一种基于电力网中智能仪表通讯单元的数据采集系统及其方法
CN113114306A (zh) * 2021-04-25 2021-07-13 青岛东软载波科技股份有限公司 一种基于电力载波通信的宽窄带通信装换装置及方法
CN113810081A (zh) * 2021-10-19 2021-12-17 惠州化能汇通智能科技有限公司 程控衰减器的hplc的配用电采集模拟系统
CN113872639A (zh) * 2021-09-24 2021-12-31 广东电网有限责任公司 电力线载波模块的功能测试方法、电子设备及存储介质
CN113992238A (zh) * 2021-10-26 2022-01-28 广东电网有限责任公司 一种载波通信性能的定量测试分析方法、装置及系统
CN114039629A (zh) * 2021-10-19 2022-02-11 深圳市科陆电子科技股份有限公司 计量设备载波通信模块测试方法、系统及存储介质
CN114531382A (zh) * 2021-12-31 2022-05-24 华立科技股份有限公司 一种电能表组网集成测试系统和测试方法
CN119012218A (zh) * 2024-10-24 2024-11-22 国网浙江省电力有限公司金华供电公司 基于中压载波技术的偏远山区组网规划方法及系统

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CN102255637B (zh) * 2011-07-15 2015-01-21 中国电力科学研究院 一种载波通信测试设备
CN102520239A (zh) * 2012-01-05 2012-06-27 重庆市电力公司电力科学研究院 一种用电信息采集系统通信模块的功耗测试系统
CN102610968A (zh) * 2012-03-18 2012-07-25 上海同耀通信技术有限公司 用于测试阻抗稳定网络的转接器
CN103281101B (zh) * 2013-06-03 2016-03-30 深圳市双赢伟业科技股份有限公司 一种plc自动化测试设备
CN103582027B (zh) * 2013-12-02 2016-08-31 北京中电普华信息技术有限公司 一种无线通信信道参数的估计方法及装置
CN104780011A (zh) * 2015-04-24 2015-07-15 国网冀北电力有限公司电力科学研究院 短距离电力通信用微功率无线通信现场信道环境模拟装置
CN106330260B (zh) * 2016-08-23 2019-05-31 杭州海兴电力科技股份有限公司 低压电力线载波性能的实验室测试装置及方法
CN107017800B (zh) * 2017-03-10 2023-08-22 深圳智微电子科技有限公司 负荷箱
CN107231172B (zh) * 2017-06-06 2021-06-15 中国电力科学研究院 一种用于对低压电力线宽带载波通信互操作性进行测试的方法及系统
CN107135038A (zh) * 2017-07-12 2017-09-05 武汉盛帆电子股份有限公司 宽带载波通信测试系统及收发装置
CN107181504B (zh) * 2017-07-12 2019-08-30 武汉盛帆电子股份有限公司 电力线宽带载波通信测试方法及装置
CN108809357B (zh) * 2018-05-05 2021-03-23 杭州得诚电力科技股份有限公司 一种电力载波通讯现场巡检装置
CN110535489B (zh) * 2019-08-08 2021-03-16 国网新疆电力有限公司营销服务中心(资金集约中心、计量中心) 低压载波通信高频干扰信号的采集与播放系统
CN110995314A (zh) * 2019-12-05 2020-04-10 国网天津市电力公司电力科学研究院 一种低压宽带电力线载波通信综合测试系统
CN112925684B (zh) * 2021-03-22 2024-05-24 西安紫光国芯半导体有限公司 建链逻辑的测试方法及相关设备

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CN102255637A (zh) * 2011-07-15 2011-11-23 中国电力科学研究院 一种载波通信测试设备
CN202340226U (zh) * 2011-06-30 2012-07-18 珠海中慧微电子有限公司 电力线载波通信性能指标全自动测试装置

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Publication number Priority date Publication date Assignee Title
CN103236892A (zh) * 2013-04-18 2013-08-07 国家电网公司 一种载波通信测试系统
CN103236892B (zh) * 2013-04-18 2015-05-27 国家电网公司 一种载波通信测试系统
CN105162534A (zh) * 2015-09-25 2015-12-16 国网天津市电力公司 一种集中器无线公网通信测试系统及方法
CN107835037A (zh) * 2017-12-06 2018-03-23 珠海格力电器股份有限公司 电力载波频率控制方法及装置
CN107835037B (zh) * 2017-12-06 2023-08-15 珠海格力电器股份有限公司 电力载波频率控制方法及装置
CN110554940A (zh) * 2019-08-02 2019-12-10 安徽南瑞中天电力电子有限公司 一种基于电能表通信串口检测工装和方法
CN111130597A (zh) * 2019-12-18 2020-05-08 国网北京市电力公司 一种hplc通信单元检测系统
CN111130597B (zh) * 2019-12-18 2022-02-08 国网北京市电力公司 一种hplc通信单元检测系统
CN111614376A (zh) * 2020-03-05 2020-09-01 国网青海省电力公司果洛供电公司 一种基于中压载波通讯装置的中压电力线阻抗测试系统
CN112763003A (zh) * 2020-10-14 2021-05-07 陕西阳光时代电气有限公司 一种基于电力网中智能仪表通讯单元的数据采集系统及其方法
CN112242858A (zh) * 2020-11-05 2021-01-19 南方电网科学研究院有限责任公司 一种电能表载波通信模块测试方法和装置
CN113114306A (zh) * 2021-04-25 2021-07-13 青岛东软载波科技股份有限公司 一种基于电力载波通信的宽窄带通信装换装置及方法
CN113114306B (zh) * 2021-04-25 2023-03-03 青岛东软载波科技股份有限公司 一种基于电力载波通信的宽窄带通信装换装置及方法
CN113872639A (zh) * 2021-09-24 2021-12-31 广东电网有限责任公司 电力线载波模块的功能测试方法、电子设备及存储介质
CN113810081A (zh) * 2021-10-19 2021-12-17 惠州化能汇通智能科技有限公司 程控衰减器的hplc的配用电采集模拟系统
CN114039629A (zh) * 2021-10-19 2022-02-11 深圳市科陆电子科技股份有限公司 计量设备载波通信模块测试方法、系统及存储介质
CN113992238A (zh) * 2021-10-26 2022-01-28 广东电网有限责任公司 一种载波通信性能的定量测试分析方法、装置及系统
CN114531382A (zh) * 2021-12-31 2022-05-24 华立科技股份有限公司 一种电能表组网集成测试系统和测试方法
CN114531382B (zh) * 2021-12-31 2024-03-01 华立科技股份有限公司 一种电能表组网集成测试系统和测试方法
CN119012218A (zh) * 2024-10-24 2024-11-22 国网浙江省电力有限公司金华供电公司 基于中压载波技术的偏远山区组网规划方法及系统

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