CN102255637A - Carrier communication test equipment - Google Patents
Carrier communication test equipment Download PDFInfo
- Publication number
- CN102255637A CN102255637A CN2011101979576A CN201110197957A CN102255637A CN 102255637 A CN102255637 A CN 102255637A CN 2011101979576 A CN2011101979576 A CN 2011101979576A CN 201110197957 A CN201110197957 A CN 201110197957A CN 102255637 A CN102255637 A CN 102255637A
- Authority
- CN
- China
- Prior art keywords
- carrier communication
- phase
- carrier
- communication
- power
- 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.)
- Granted
Links
Images
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
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
The invention relates to carrier communication test equipment, which is characterized by comprising test bench body and a computer body, wherein the test bench body is connected with the computer body by Ethernet; and the computer body is operated to control the test bench body, change channel parameters and acquire test information. The equipment tests the performance of communication between an acquisition terminal and a carrier electric meter; and a design scheme of constructing low voltage power line carrier communication channels in the test equipment is put forward, so that a system counts communication results and measures the channel parameters in a continuous communication state to obtain index parameters of a current carrier communication channel, low voltage power line carrier communication equipment meets the requirements of related standards, and technical support is provided for the acceleration of construction of a power consumer power consumption information acquisition system and a robust smart power grid.
Description
Technical field
The present invention relates to testing equipment, specifically, relate to the carrier communication testing equipment.
Background technology
At present, the collecting device that is used to gather the low-voltage customer power information that electric power enterprise is installed extensively adopts the low-voltage powerline carrier communication mode.Carrier communication can use existing low-voltage power line as communication channel, have the communication broad covered area, easy to use, do not need additional investment to build channel, advantage such as continue to pay dues without male offspring.But carrier communication channel network topological structure complexity, channel parameter changes constantly, and the Harmonic Interference that various nonlinear loads produce is serious, and characteristic impedance does not match, and communication quality is subjected to the influence of region and time period easily, is difficult to guarantee stable communication efficiency.For satisfying the needs that strong intelligent grid is built, electric power enterprise will obtain the excellent communications effect, output signal level has been proposed requirements at the higher level, when building power consumer power information acquisition system, need carry out the strictness test the communication performance of acquisition terminal and carrier electric energy meter.
The construction of power consumer power information acquisition system improves constantly the requirement of communication quality, needs more strictly according to the parameters and the index of low-voltage powerline carrier communication the communication performance of acquisition terminal and carrier electric energy meter to be carried out full test.For improving the power line carrier communication applied environment, obtain stable communication efficiency, serve the construction of power consumer power information acquisition system better.
When at present low-voltage powerline carrier communication being tested, need interim with frequency spectrograph and communication equipment test system building, manually debug and test, method is simple and crude, the test macro instability, channel disturbance is uncontrollable, and test repeatability and reproducibility are poor, needs a kind of stable, controlled carrier communication testing equipment badly.
Summary of the invention
The objective of the invention is to above-mentioned defective at the prior art existence, a kind of carrier communication testing equipment is provided, this equipment is tested the communication performance between acquisition terminal and carrier electric energy meter, proposed to build the design of low-voltage powerline carrier communication channel in testing equipment inside, make system under the state of continuous communiction, add up result of communication and channel parameter is measured, draw the index parameter of current carrier communication channel, make low-voltage powerline carrier communication equipment meet the requirement of related specifications, provide technical support for accelerating propelling power consumer power information acquisition system and strong intelligent grid construction.
A kind of carrier communication testing equipment provided by the invention, its improvements are to comprise test stage body and main frame, connect by Ethernet between test stage body and the main frame, by the operational computations machine host test stage body is controlled, changed channel parameter and collecting test information.
The provided by the invention first preferred carrier communication testing equipment, described test stage body is made up of the power conditioner, programmable attenuator, natural attenuation network, impedance network, signal generator, frequency spectrograph, oscilloscope, industrial computer and the Biao Tai that connect by power line; Described power conditioner is drawn two power lines respectively and is connected to acquisition terminal and carrier wave meter by AC-DC conversion, keeps Phase synchronization with phase-locked loop between two power lines; Described programmable attenuator, natural attenuation network, impedance network are connected between two power lines; Described signal generator inserts the power line of acquisition terminal side and carrier wave meter side as controlled noise source; Described frequency spectrograph and oscilloscope insert the power line of acquisition terminal side and carrier wave meter side as measuring instrument; Described programmable attenuator, impedance network, signal generator, frequency spectrograph and oscilloscope are directly controlled by industrial computer.The table platform provides the power line of carrier wave meter to insert.
The provided by the invention second preferred carrier communication testing equipment, described natural attenuation network provides fixing pad value between two power lines phase-locked by phase-locked loop, and phase difference produces voltage difference programmable attenuator is caused damage when preventing the phase-locked loop losing lock.
The provided by the invention the 3rd preferred carrier communication testing equipment, described impedance network middle impedance components and parts are connected to form matrix by relay, can change network by switch relay and connect the Adjusting Shape impedance.
The provided by the invention the 4th preferred carrier communication testing equipment, described table platform provides 16 epi-positions, and each epi-position provides two RS-485 communication interfaces, and the three-phase and four-line mode of connection of preceding power supply of table and the power supply of table back is provided respectively.
1. the composition structure of carrier communication testing equipment
The carrier communication testing equipment is made up of test stage body and main frame, connects by Ethernet between test stage body and the main frame, by the operational computations machine host test stage body is controlled, and changes channel parameter and collecting test information.The test stage body is made up of power conditioner, programmable attenuator, natural attenuation network, impedance network, signal generator, frequency spectrograph, oscilloscope, industrial computer and Biao Tai.
2. operation principle
The major function of test stage body is the two-way controllable and measurable power line carrier communication channel of realizing from the acquisition terminal to the carrier electric energy meter, test acquisition terminal and carrier electric energy meter in the different channels situation communication capacity and to the influence of channel.In once testing arbitrarily, needing acquisition terminal and carrier electric energy meter to carry out several times communicates by letter, successful each time communication comprises that acquisition terminal sends, carrier electric energy meter receives, carrier electric energy meter sends, acquisition terminal receives four parts, and information will be finished descending, up twice transmission.
During test, in main frame, open the acquisition system main website, set up and being connected of acquisition terminal, send the instruction of collection specific carriers electric energy meter data to acquisition terminal by GPRS, Ethernet or serial ports.After acquisition terminal is received instruction, send the message of checking meter to the particular carrier wave electric energy meter, through arriving carrier electric energy meter after noise injection, fading channel, the impedance variation with carrier system.After carrier electric energy meter normally receives message, return to acquisition terminal behind the information framing with correspondence, pass through the process of noise injection, fading channel, impedance variation equally.If acquisition terminal can normally receive returned packet, go upward to the acquisition system main website and resolve errorlessly, then judge and this time communicate by letter successfully.By change channel parameter and to current channel parameter down the communication success rate analyze, can judge the critical indicator of communicating by letter of current acquisition terminal and communication system that carrier electric energy meter is formed.
Power conditioner is drawn two power lines respectively and is connected to acquisition terminal and carrier wave meter by AC-DC conversion, keeps Phase synchronization with phase-locked loop between two power lines.Programmable attenuator, natural attenuation network, impedance network are connected between two power lines.Signal generator inserts the power line of acquisition terminal side and carrier wave meter side as controlled noise source.Frequency spectrograph and oscilloscope insert the power line of acquisition terminal side and carrier wave meter side as measuring instrument.Programmable attenuator, impedance network, signal generator, frequency spectrograph and oscilloscope are directly controlled by industrial computer.The table platform provides the power line of carrier wave meter to insert.The natural attenuation network provides fixing pad value between two power lines phase-locked by phase-locked loop, phase difference produces voltage difference programmable attenuator is caused damage when preventing the phase-locked loop losing lock.
Compared with prior art, a kind of carrier communication testing equipment provided by the invention has the following advantages:
1, sets up the stabilized carrier communication test system, reliable test environment is provided;
2, the carrier communication test macro can be by signal generator simulated field noise;
3, the carrier communication test macro can be controlled decay and impedance, simulated field transmission channel;
4, the carrier communication test macro is carried out fixing testing process by industrial computer, guarantees the repeatability and the reproducibility of test result.
Description of drawings
Fig. 1 is: a kind of carrier communication testing equipment test stage body hardware connection mode schematic diagram provided by the invention:
Embodiment
Below by drawings and Examples a kind of carrier communication testing equipment provided by the invention is done further more detailed description;
As shown in Figure 1, the carrier communication testing equipment of present embodiment comprises test stage body and main frame, connects by Ethernet between test stage body and the main frame, by the operational computations machine host test stage body is controlled, changed channel parameter and collecting test information.
The test stage body is made up of the power conditioner, programmable attenuator, natural attenuation network, impedance network, signal generator, frequency spectrograph, oscilloscope, industrial computer and the Biao Tai that connect by power line; Described power conditioner is drawn two power lines respectively and is connected to acquisition terminal and carrier wave meter by AC-DC conversion, keeps Phase synchronization with phase-locked loop between two power lines; Described programmable attenuator, natural attenuation network, impedance network are connected between two power lines; Described signal generator inserts the power line of acquisition terminal side and carrier wave meter side as controlled noise source; Described frequency spectrograph and oscilloscope insert the power line of acquisition terminal side and carrier wave meter side as measuring instrument; Described programmable attenuator, impedance network, signal generator, frequency spectrograph and oscilloscope are directly controlled by industrial computer.The table platform provides the power line of carrier wave meter to insert.
The natural attenuation network provides fixing pad value between two power lines phase-locked by phase-locked loop, phase difference produces voltage difference programmable attenuator is caused damage when preventing the phase-locked loop losing lock.
Impedance network middle impedance components and parts are connected to form matrix by relay, can change network by switch relay and connect the Adjusting Shape impedance.
The table platform provides 16 epi-positions, and each epi-position provides two RS-485 communication interfaces, and the three-phase and four-line mode of connection of preceding power supply of table and the power supply of table back is provided respectively.
Practical operation:
(1) in main frame, open the acquisition system main website, and by industrial computer to the initialization of test stage body.
(2) acquisition terminal is established a communications link by GPRS, Ethernet or serial ports and acquisition system main website, send the instruction of gathering specific carriers electric energy meter data to acquisition terminal.
(3) after acquisition terminal is received instruction, send the message of checking meter to the particular carrier wave electric energy meter, through arriving carrier electric energy meter after noise injection, fading channel, the impedance variation with carrier system.
(4) after carrier electric energy meter normally receives message, return to acquisition terminal behind the information framing with correspondence, pass through the process of noise injection, fading channel, impedance variation equally.
(5) after acquisition terminal normally receives returned packet, go upward to the acquisition system main website and resolve errorlessly, then judge and this time communicate by letter successfully.
(6) because the communication channel ambient controlled can be passed through the analyzing communication success rate, judge the communication performance of current acquisition terminal and communication system that carrier electric energy meter is formed.
Should be noted that at last: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; although the present invention is had been described in detail with reference to the foregoing description; under eight Yuans of the ordinary skills in field be to be understood that: eight Yuans of technology are read after the present specification still and can be made amendment or be equal to replacement the specific embodiment of the present invention, do not await the reply within the claim protection range but these modifications or change all break away from the present patent application.
Claims (5)
1. carrier communication testing equipment, it is characterized in that comprising test stage body and main frame, connect by Ethernet between test stage body and the main frame, the test stage body is controlled, change channel parameter and collecting test information by the operational computations machine host.
2. carrier communication testing equipment according to claim 1 is characterized in that described test stage body is made up of the power conditioner, programmable attenuator, natural attenuation network, impedance network, signal generator, frequency spectrograph, oscilloscope, industrial computer and the Biao Tai that connect by power line; Described power conditioner is drawn two power lines respectively and is connected to acquisition terminal and carrier wave meter by AC-DC conversion, keeps Phase synchronization with phase-locked loop between two power lines; Described programmable attenuator, natural attenuation network, impedance network are connected between two power lines; Described signal generator inserts the power line of acquisition terminal side and carrier wave meter side as controlled noise source; Described frequency spectrograph and oscilloscope insert the power line of acquisition terminal side and carrier wave meter side as measuring instrument; Described programmable attenuator, impedance network, signal generator, frequency spectrograph and oscilloscope are directly controlled by industrial computer.The table platform provides the power line of carrier wave meter to insert.
3. carrier communication testing equipment according to claim 1, it is characterized in that described natural attenuation network provides fixing pad value between two power lines phase-locked by phase-locked loop, phase difference produces voltage difference programmable attenuator is caused damage when preventing the phase-locked loop losing lock.
4. carrier communication testing equipment according to claim 1 is characterized in that described impedance network middle impedance components and parts are connected to form matrix by relay, can change network by switch relay and connect the Adjusting Shape impedance.
5. carrier communication testing equipment according to claim 1 is characterized in that described table platform provides 16 epi-positions, and each epi-position provides two RS-485 communication interfaces, and the three-phase and four-line mode of connection of preceding power supply of table and the power supply of table back is provided respectively.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110197957.6A CN102255637B (en) | 2011-07-15 | 2011-07-15 | Carrier communication test equipment |
| PCT/CN2012/078477 WO2013010447A1 (en) | 2011-07-15 | 2012-07-11 | Carrier communication test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110197957.6A CN102255637B (en) | 2011-07-15 | 2011-07-15 | Carrier communication test equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102255637A true CN102255637A (en) | 2011-11-23 |
| CN102255637B CN102255637B (en) | 2015-01-21 |
Family
ID=44982647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110197957.6A Active CN102255637B (en) | 2011-07-15 | 2011-07-15 | Carrier communication test equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102255637B (en) |
| WO (1) | WO2013010447A1 (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102520239A (en) * | 2012-01-05 | 2012-06-27 | 重庆市电力公司电力科学研究院 | Power consumption testing system for communication module of electricity information acquisition system |
| CN102610968A (en) * | 2012-03-18 | 2012-07-25 | 上海同耀通信技术有限公司 | Adapter for testing network with stable impedance |
| WO2013010447A1 (en) * | 2011-07-15 | 2013-01-24 | 中国电力科学研究院 | Carrier communication test device |
| CN103281101A (en) * | 2013-06-03 | 2013-09-04 | 深圳市双赢伟业科技股份有限公司 | PLC automated testing device |
| CN103582027A (en) * | 2013-12-02 | 2014-02-12 | 北京中电普华信息技术有限公司 | Method and device for estimating wireless communication channel parameters |
| CN104780011A (en) * | 2015-04-24 | 2015-07-15 | 国网冀北电力有限公司电力科学研究院 | Micro-power wireless communication site channel environment simulator for short-distance power communication |
| CN106330260A (en) * | 2016-08-23 | 2017-01-11 | 杭州海兴电力科技股份有限公司 | Laboratory test device and method of low-voltage power line carrier performance |
| CN107017800A (en) * | 2017-03-10 | 2017-08-04 | 北京盛大信通科技有限公司 | Burden box |
| CN107135038A (en) * | 2017-07-12 | 2017-09-05 | 武汉盛帆电子股份有限公司 | Bandwidth carrier communication test system and R-T unit |
| CN107181504A (en) * | 2017-07-12 | 2017-09-19 | 武汉盛帆电子股份有限公司 | Power wire broadband carrier communication method of testing and device |
| CN107231172A (en) * | 2017-06-06 | 2017-10-03 | 中国电力科学研究院 | A kind of method and system for being tested low-voltage power line bandwidth carrier Communications Interoperability |
| CN107835037A (en) * | 2017-12-06 | 2018-03-23 | 珠海格力电器股份有限公司 | Power carrier control method for frequency and device |
| CN108809357A (en) * | 2018-05-05 | 2018-11-13 | 杭州得诚电力科技股份有限公司 | A kind of power carrier communication scene inspection device |
| CN110535489A (en) * | 2019-08-08 | 2019-12-03 | 国网新疆电力有限公司电力科学研究院 | The acquisition and play system of low-voltage carrier communication high-frequency interferencing signal |
| CN110995314A (en) * | 2019-12-05 | 2020-04-10 | 国网天津市电力公司电力科学研究院 | Low-voltage broadband power line carrier communication comprehensive test system |
| CN112763003A (en) * | 2020-10-14 | 2021-05-07 | 陕西阳光时代电气有限公司 | Data acquisition system and method based on intelligent instrument communication unit in power grid |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103236892B (en) * | 2013-04-18 | 2015-05-27 | 国家电网公司 | Carrier communication testing system |
| CN105162534B (en) * | 2015-09-25 | 2017-12-15 | 国网天津市电力公司 | A kind of concentrator wireless public network communication test system and method |
| CN110554940A (en) * | 2019-08-02 | 2019-12-10 | 安徽南瑞中天电力电子有限公司 | Serial port detection tool and method based on electric energy meter communication |
| CN111130597B (en) * | 2019-12-18 | 2022-02-08 | 国网北京市电力公司 | HPLC communication unit detecting system |
| CN111614376A (en) * | 2020-03-05 | 2020-09-01 | 国网青海省电力公司果洛供电公司 | Medium voltage power line impedance test system based on medium voltage carrier communication device |
| CN112242858B (en) * | 2020-11-05 | 2021-11-26 | 南方电网科学研究院有限责任公司 | Method and device for testing carrier communication module of electric energy meter |
| CN113114306B (en) * | 2021-04-25 | 2023-03-03 | 青岛东软载波科技股份有限公司 | Broadband and narrowband communication switching device and method based on power line carrier communication |
| CN113872639B (en) * | 2021-09-24 | 2023-01-20 | 广东电网有限责任公司 | Function test method of power line carrier module, electronic device and storage medium |
| CN113810081B (en) * | 2021-10-19 | 2023-05-05 | 惠州化能汇通智能科技有限公司 | Power distribution and utilization acquisition simulation system of HPLC (high performance liquid chromatography) of program-controlled attenuator |
| CN114039629B (en) * | 2021-10-19 | 2023-03-21 | 深圳市科陆电子科技股份有限公司 | Metering equipment carrier communication module test method, system and storage medium |
| CN113992238A (en) * | 2021-10-26 | 2022-01-28 | 广东电网有限责任公司 | Quantitative test analysis method, device and system for carrier communication performance |
| CN114531382B (en) * | 2021-12-31 | 2024-03-01 | 华立科技股份有限公司 | Electric energy meter networking integrated test system and test method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101404523A (en) * | 2008-11-19 | 2009-04-08 | 南京新联电子股份有限公司 | Low-voltage powerline carrier communication experiment method and its experiment system |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907694B (en) * | 2010-07-09 | 2013-03-20 | 深圳市科陆电子科技股份有限公司 | Device and method for testing low-voltage collecting meter reading system |
| CN102255637B (en) * | 2011-07-15 | 2015-01-21 | 中国电力科学研究院 | Carrier communication test equipment |
-
2011
- 2011-07-15 CN CN201110197957.6A patent/CN102255637B/en active Active
-
2012
- 2012-07-11 WO PCT/CN2012/078477 patent/WO2013010447A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101404523A (en) * | 2008-11-19 | 2009-04-08 | 南京新联电子股份有限公司 | Low-voltage powerline carrier communication experiment method and its experiment system |
| 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 |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013010447A1 (en) * | 2011-07-15 | 2013-01-24 | 中国电力科学研究院 | Carrier communication test device |
| CN102520239A (en) * | 2012-01-05 | 2012-06-27 | 重庆市电力公司电力科学研究院 | Power consumption testing system for communication module of electricity information acquisition system |
| CN102610968A (en) * | 2012-03-18 | 2012-07-25 | 上海同耀通信技术有限公司 | Adapter for testing network with stable impedance |
| CN103281101A (en) * | 2013-06-03 | 2013-09-04 | 深圳市双赢伟业科技股份有限公司 | PLC automated testing device |
| CN103281101B (en) * | 2013-06-03 | 2016-03-30 | 深圳市双赢伟业科技股份有限公司 | A kind of PLC automated test device |
| CN103582027A (en) * | 2013-12-02 | 2014-02-12 | 北京中电普华信息技术有限公司 | Method and device for estimating wireless communication channel parameters |
| CN103582027B (en) * | 2013-12-02 | 2016-08-31 | 北京中电普华信息技术有限公司 | The method of estimation of a kind of radio communication channel parameter and device |
| CN104780011A (en) * | 2015-04-24 | 2015-07-15 | 国网冀北电力有限公司电力科学研究院 | Micro-power wireless communication site channel environment simulator for short-distance power communication |
| CN106330260A (en) * | 2016-08-23 | 2017-01-11 | 杭州海兴电力科技股份有限公司 | Laboratory test device and method of low-voltage power line carrier performance |
| CN106330260B (en) * | 2016-08-23 | 2019-05-31 | 杭州海兴电力科技股份有限公司 | The laboratory test device and method of low voltage power line carrier performance |
| CN107017800A (en) * | 2017-03-10 | 2017-08-04 | 北京盛大信通科技有限公司 | Burden box |
| CN107017800B (en) * | 2017-03-10 | 2023-08-22 | 深圳智微电子科技有限公司 | load box |
| CN107231172A (en) * | 2017-06-06 | 2017-10-03 | 中国电力科学研究院 | A kind of method and system for being tested low-voltage power line bandwidth carrier Communications Interoperability |
| CN107231172B (en) * | 2017-06-06 | 2021-06-15 | 中国电力科学研究院 | Method and system for testing interoperability of broadband carrier communication of low-voltage power line |
| CN107181504A (en) * | 2017-07-12 | 2017-09-19 | 武汉盛帆电子股份有限公司 | Power wire broadband carrier communication method of testing and device |
| CN107181504B (en) * | 2017-07-12 | 2019-08-30 | 武汉盛帆电子股份有限公司 | Power wire broadband carrier communication test method and device |
| CN107135038A (en) * | 2017-07-12 | 2017-09-05 | 武汉盛帆电子股份有限公司 | Bandwidth carrier communication test system and R-T unit |
| CN107835037A (en) * | 2017-12-06 | 2018-03-23 | 珠海格力电器股份有限公司 | Power carrier control method for frequency and device |
| CN107835037B (en) * | 2017-12-06 | 2023-08-15 | 珠海格力电器股份有限公司 | Power carrier frequency control method and device |
| CN108809357A (en) * | 2018-05-05 | 2018-11-13 | 杭州得诚电力科技股份有限公司 | A kind of power carrier communication scene inspection device |
| CN108809357B (en) * | 2018-05-05 | 2021-03-23 | 杭州得诚电力科技股份有限公司 | Power line carrier communication field inspection device |
| CN110535489A (en) * | 2019-08-08 | 2019-12-03 | 国网新疆电力有限公司电力科学研究院 | The acquisition and play system of low-voltage carrier communication high-frequency interferencing signal |
| CN110995314A (en) * | 2019-12-05 | 2020-04-10 | 国网天津市电力公司电力科学研究院 | Low-voltage broadband power line carrier communication comprehensive test system |
| CN112763003A (en) * | 2020-10-14 | 2021-05-07 | 陕西阳光时代电气有限公司 | Data acquisition system and method based on intelligent instrument communication unit in power grid |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013010447A1 (en) | 2013-01-24 |
| CN102255637B (en) | 2015-01-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102255637B (en) | Carrier communication test equipment | |
| CN205070993U (en) | Power line communication module testing arrangement | |
| CN102401864B (en) | Laboratory simulation detection device for low-voltage meter reading system | |
| CN204119227U (en) | Intelligent electric meter carrier communication module test gimulator | |
| CN110995314A (en) | Low-voltage broadband power line carrier communication comprehensive test system | |
| CN105572619A (en) | Online transient test system for electronic current transformer | |
| AU2011367734A1 (en) | Electric quantity collection terminal function tester | |
| CN103954925A (en) | Fault recorder dynamic testing method based on RTDS real-time simulation | |
| CN106330260B (en) | The laboratory test device and method of low voltage power line carrier performance | |
| CN110572183A (en) | Low-voltage distribution network power line carrier communication performance quantitative test system | |
| CN108132455A (en) | Global error check system based on combining unit | |
| CN107294562B (en) | Low-voltage power carrier module simulation detection device | |
| CN109782732A (en) | A kind of half circuit control device test platform in kind | |
| CN209120175U (en) | A kind of broadband HPLC communication module anti-decay property test macro | |
| CN204331019U (en) | A kind of digital electricity meter IEC61850 compliance test system | |
| CN209879495U (en) | Information safety and reliability detection device for intelligent terminal and electricity meter | |
| CN104237681A (en) | Digitization relay protection testing device | |
| CN103592539B (en) | A kind of electric parameters merge cells for dynamic simulator system | |
| CN111147324A (en) | Multi-dimensional integrated detection and evaluation system | |
| CN116056129A (en) | Simulation test platform capable of realizing multi-module automatic test | |
| CN106341160A (en) | Low-voltage power line carrier network laboratory test device and low-voltage power line carrier network laboratory test method | |
| CN115173893A (en) | Full-load testing device for HPLC broadband carrier | |
| CN116008689A (en) | Real simulation system of configuration type low-voltage distribution network and test method thereof | |
| CN205786930U (en) | A kind of electronic power transformer electric energy quality detection device | |
| CN113687157A (en) | HPLC small current branch identification method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20130520 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20130520 Address after: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Applicant after: China Electric Power Research Institute Applicant after: State Grid Corporation of China Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Applicant before: China Electric Power Research Institute |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |