CN102594403A - System and method for power line carrier communication environmental testing - Google Patents
System and method for power line carrier communication environmental testing Download PDFInfo
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- CN102594403A CN102594403A CN201210082572XA CN201210082572A CN102594403A CN 102594403 A CN102594403 A CN 102594403A CN 201210082572X A CN201210082572X A CN 201210082572XA CN 201210082572 A CN201210082572 A CN 201210082572A CN 102594403 A CN102594403 A CN 102594403A
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Abstract
The invention discloses a system and a method for power line carrier communication environmental testing. The system comprises an impedance noise measuring module, a master control module and a power supply module. The power supply module is connected with the impedance noise measuring module and the master control module to supply required work power supply to the impedance noise measuring module and the master control module. The master control module is used for sending control instruction to the impedance noise measuring module when testing instruction is impedance testing instruction or noise testing instruction so as to control the impedance noise measuring module to measure impedance sampling data or noise sampling data on a tested power line and obtain impedance sampling value or noise sampling value of the tested power line by calculating the sampling data, and therefore cause of power line carrier communication faults can be checked fast and conveniently.
Description
Technical field
The present invention relates to the communication environment field tests, particularly a kind of power line carrier communication environmental testing system and method.
Background technology
In power line carrier communication, under home, power line carrier communication can not receive any interference; But on power line, there are various transmission problems; The operate as normal of meeting interfere with communications equipment, the problem that causes the communication success rate to reduce, present power line carrier communication environmental testing system mainly is aimed under the environment of height, middle pressure; And under the environment of low-voltage power line; Influence more that the factor of power line carrier communication can be relative, but the system that is applied to measure the carrier communication under the low-voltage power line environment seldom, is not easy under environment under low pressure, search efficiently the reason of power line carrier communication fault like this.
Summary of the invention
Problem to be solved by this invention is: a kind of power line carrier communication environmental testing system and method is provided, to solve the problem that under environment under low pressure, can't search the power line carrier communication fault in the prior art efficiently.
A kind of power line carrier communication environmental testing system, said system comprises:
Impedance noise measurement module, main control module and power module;
Said power module links to each other with said main control module with said impedance noise measurement module, is used to said main control module and said impedance noise measurement module provides needed working power;
Said main control module; Be used to receive the test instruction of user's input; When said test instruction is impedance or noise testing instruction; To said impedance noise measurement module sending controling instruction, control said impedance noise measurement module and measure impedance or noise samples data on the tested power line, and calculate the impedance or the noise testing value of said tested power line according to said sampled data;
Said impedance noise measurement module links to each other with said main control module, comprising: signal sends subelement, signals collecting subelement and handles subelement;
Said signal sends subelement, is used to receive the control command that said main control module sends, and sends test massage to tested power line;
Said signals collecting subelement is used to gather said tested power line and receives the voltage signal that produces after the said test signal;
Said processing subelement is used for said voltage signal is handled, and obtains impedance or noise samples data on the said tested power line.
Preferably, said signal transmission subelement comprises: circuits for triggering, Direct Digital Synthesizer DDS signal generating circuit, power amplification circuit;
Said circuits for triggering are used to produce the triggering signal that triggers said DDS signal generating circuit;
Said DDS signal generating circuit is used to receive said triggering signal, produces test signal;
Said power amplification circuit is used for said test signal is amplified according to pre-conditioned.
Preferably, said processing subelement comprises:
Signal sample circuit AD is used for the voltage signal of said signal gathering unit collection is sampled and the said voltage signal that collects converted into the analog voltage signal of 0～5V;
Dsp processor is used for said analog voltage signal handled obtaining impedance corresponding with it or noise samples data.
Preferably, said system also comprises the carrier wave measurement module;
Said main control module; Also be used for when said test instruction is the test instruction of signal of communication pad value; To said carrier wave measurement module sending controling instruction; Control said carrier wave measurement module and measure signal of communication decay sampled data on the tested power line, and calculate the signal of communication pad value of said tested power line according to said sampled data.
Preferably, said system also comprises input module;
Said input module links to each other with said main control module, is used to be provided with said main control module parameters.
Said input module comprises: touch screen or keyboard input module.
Preferably, said system also comprises display module;
Said display module links to each other with said main control module, the parameters of the test value of the tested power line that is used to show that said main control module calculates and the said main control module imported through said input module.
Preferably, said system also comprises memory module;
Said memory module, the pad value of sampled data, resistance value, noise level and the said tested electric-power wire communication signal of the said tested power line that is used for said main control module is obtained is stored.
A kind of power line carrier communication environmental testing method is applied to power line carrier communication environmental testing system, and said system comprises impedance noise measurement module, main control module and power module, and this method comprises:
Said main control module receives the test instruction of user's input;
When said test instruction is impedance or noise testing instruction, to said impedance noise measurement module sending controling instruction;
Said impedance noise measurement module sends test massage to tested power line; Gather said tested power line and receive the voltage signal that produces after the said test signal; And said voltage signal handled, obtain impedance or noise samples data on the said tested power line;
Said main control module calculates the impedance or the noise testing value of said tested power line according to said sampled data.
Preferably, when said system also comprises the carrier wave measurement module, when said test instruction was the test instruction of signal of communication pad value, this method also comprised:
Said main control module is to said carrier wave measurement module sending controling instruction;
Said carrier wave measurement module is measured the signal of communication decay sampled data on the said tested power line;
Said main control module calculates the pad value of the signal of communication of said tested power line according to said sampled data.
Can find out from above technical scheme; A kind of power line carrier communication environmental testing system and method is provided among the present invention; This system has comprised measurement module and main control module under the low-voltage power line environment, said measurement module is used in real time tested power line being carried out data acquisition; Main control module uses corresponding said measurement module to measure according to the interactive instruction of user's input; Read the sampled data of the said tested power line that said measurement module measures, and calculate the measured value of said tested power line according to the sampled data of said tested power line, described measurement module has comprised the impedance noise measurement module at least; This system has made things convenient for and under environment under low pressure, has searched the power line carrier communication fault efficiently.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment that put down in writing among the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of power line carrier communication environmental testing disclosed by the invention system;
Fig. 2 is another structural representation of a kind of power line carrier communication environmental testing disclosed by the invention system;
Fig. 3 is the third structural representation of a kind of power line carrier communication environmental testing disclosed by the invention system;
Fig. 4 is the schematic flow sheet of a kind of power line carrier communication environmental testing method embodiment one disclosed by the invention;
Fig. 5 is the schematic flow sheet of a kind of power line carrier communication environmental testing method embodiment two disclosed by the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to protection scope of the present invention not making the every other embodiment that is obtained under the creative work prerequisite.
Among the present invention, Fig. 1 is the structural representation of a kind of power line carrier communication environmental testing system, and referring to shown in Figure 1, this system comprises:
Impedance noise measurement module 101, main control module 102 and power module 103;
Said power module 103 links to each other with said main control module 102 with said impedance noise measurement module 101, is used to said main control module 102 and with said impedance noise measurement module 101 needed working power is provided;
Said main control module 102; Be used to receive the test instruction of user's input; When said test instruction is impedance or noise testing instruction; To said impedance noise measurement module 101 sending controling instructions, control impedance or noise samples data that said impedance noise measurement module 101 is measured on the tested power line, and calculate the impedance or the noise testing value of said tested power line according to said sampled data;
Said impedance noise measurement module 101 links to each other with said main control module 102, comprising: signal sends subelement 104, signals collecting subelement 105 and handles subelement 106;
Said signal sends subelement 104 and is used for, and receives the control command that said main control module 102 sends, and sends test massage to tested power line;
Said signals collecting subelement 105 is used for, and gathers said tested power line and receives the voltage signal that produces after the said test signal;
Said processing subelement 106 is used for, and said voltage signal is handled, and obtains impedance or noise samples data on the said tested power line.
The power line carrier communication environmental testing system that the foregoing description is corresponding; Said main control module links to each other with said impedance noise measurement module; Described impedance noise measurement module comprises that said signal sends subelement, signals collecting subelement and handles subelement; Said main control module is used to receive the test instruction of user's input, when said test instruction is impedance or noise testing instruction, to said impedance noise measurement module sending controling instruction; Control said impedance noise measurement module and measure impedance or noise samples data on the tested power line; And calculating the impedance or the noise testing value of said tested power line according to said sampled data, this system can test impedance or the noise level on the tested power line easily under environment under low pressure, find out the power line carrier communication fault efficiently.
Among the present invention, Fig. 2 is another structural representation of a kind of power line carrier communication environmental testing system, referring to shown in Figure 2,
Said signal sends subelement 104 and comprises: circuits for triggering 107, Direct Digital Synthesizer DDS signal generating circuit 108, power amplification circuit 109;
Said circuits for triggering 107 are used to produce the triggering signal that triggers said DDS signal generating circuit 108;
Said DDS signal generating circuit 108 is used to receive said triggering signal, produces test signal;
Said power amplification circuit 109 is used for said test signal is amplified according to pre-conditioned;
Said processing subelement 106 comprises: signal sample circuit AD110 and dsp processor 111.
Signal sample circuit AD110 is used for the voltage signal that said signal gathering unit 105 is gathered is sampled and the said voltage signal that collects converted into the analog voltage signal of 0～5V;
The power line carrier communication environmental testing system that the foregoing description is corresponding; Further optimize said signal and sent subelement and said processing subelement; Described signal sends subelement and comprises circuits for triggering, DDS signal generating circuit, power amplification circuit; Said circuits for triggering are used to produce the triggering signal that triggers said DDS signal generating circuit, and said DDS signal generating circuit is used to receive said triggering signal, produce test signal; Said power amplification circuit is used for said test signal is amplified according to pre-conditioned; Said signal sample circuit AD, the voltage signal after being used for the voltage signal of said signal gathering unit collection sampled and will sample converts the analog voltage signal of 0～5V, dsp processor into; Be used for said analog voltage signal handled obtaining impedance corresponding with it or noise samples data, this system can find out the impedance or the noise testing value of power line carrier communication efficiently under environment under low pressure.
Among the present invention, Fig. 3 is the third structural representation of a kind of power line carrier communication environmental testing system, and referring to shown in Figure 3, this system also comprises carrier wave measurement module 112;
Said carrier wave measurement mode fast 112 links to each other with said main control module 102; Said main control module 102 also is used for when said test instruction is the test instruction of signal of communication pad value; To said carrier wave measurement module 112 sending controling instructions; Control said carrier wave measurement module 112 and measure signal of communication decay sampled data on the tested power line, and calculate the signal of communication pad value of said tested power line according to said sampled data.
Said system also comprises: input module 113;
Said input module comprises: touch screen or keyboard input template.
Said system also comprises display module 114;
Described display module 114 links to each other with said main control module 102, the parameters of the test value of the tested power line that is used to show that said main control module 102 obtains and the said main control module 102 imported through said input module 113.
Said system also comprises memory module 115;
Said memory module 115, the pad value of sampled data, resistance value, noise level and the said tested electric-power wire communication signal of the said tested power line that is used for said main control module 102 is obtained is stored.
The power line carrier communication environmental testing system that the foregoing description is corresponding; Further optimized this system; Comprise: carrier wave measurement module, input module, display module, memory module; After this system had added above-mentioned module, more convenient user can obtain out impedance, noise testing value and the pad value of power line carrier communication more easily for the also operation of system under environment under low pressure.
Among the present invention; Fig. 4 is the schematic flow sheet of a kind of power line carrier communication environmental testing method embodiment one; Referring to shown in Figure 4; This method is applied to power line carrier communication environmental testing system, and said system comprises impedance noise measurement module, main control module and power module, and this method step comprises:
Step S101: said main control module receives the test instruction of user's input;
Step S102: when said test instruction is impedance or noise testing instruction, to said impedance noise measurement module sending controling instruction;
Step S103: said impedance noise measurement module sends test massage to tested power line; Gather said tested power line and receive the voltage signal that produces after the said test signal; And said voltage signal handled, obtain the impedance or the noise samples data of said tested power line;
Step S104: said main control module calculates the impedance or the noise testing value of said tested power line according to said sampled data.
In the foregoing description; Said main control module receives the test instruction of user's input; When said test instruction is impedance or noise testing instruction; To said impedance noise measurement module sending controling instruction, said impedance noise measurement module is gathered said tested power line and is received the voltage signal that produces after the said test signal to being sent test massage by the side power line; And said voltage signal handled; Obtain the impedance or the noise samples data of said tested power line, the said sampled data of said main control module foundation calculates the impedance or the noise testing value of said tested power line, conveniently under environment under low pressure, finds out impedance, the noise testing value in the power line carrier communication.
Among the present invention, Fig. 5 is the schematic flow sheet of a kind of power line carrier communication environmental testing method embodiment two, and referring to shown in Figure 5, this method is applied to power line carrier communication environmental testing system, and said system also comprises the carrier wave measurement module, and this method step comprises:
Step S201: said main control module is to said carrier wave measurement module sending controling instruction;
Step S202: said carrier wave measurement module is measured the signal of communication decay sampled data on the said tested power line;
Step S203: said control module calculates the pad value of the signal of communication of said tested power line according to said sampled data.
The foregoing description has added the carrier wave measurement module on the basis of impedance noise measurement module; Said main control module is to said carrier wave measurement module sending controling instruction; Said carrier wave measurement module is measured the signal of communication decay sampled data on the tested power line; Said control module calculates the pad value of the signal of communication of said tested power line according to said sampled data; The method has calculated the signal of communication pad value on the basis of previous embodiment, the convenient signal attenuation value that under environment under low pressure, finds out power line carrier communication.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For the disclosed device of embodiment, because it is corresponding with the embodiment disclosed method, so description is fairly simple, relevant part is partly explained referring to method and is got final product.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment is conspicuous to those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and the corresponding to wide region of features of novelty.
Claims (10)
1. power line carrier communication environmental testing system is characterized in that said system comprises:
Impedance noise measurement module, main control module and power module;
Said power module links to each other with said main control module with said impedance noise measurement module, is used to said main control module and said impedance noise measurement module provides needed working power;
Said main control module; Be used to receive the test instruction of user's input; When said test instruction is impedance or noise testing instruction; Send control instruction corresponding to said impedance noise measurement module, control said impedance noise measurement module and measure impedance or noise samples data on the tested power line, and calculate the impedance or the noise testing value of said tested power line according to said sampled data;
Said impedance noise measurement module links to each other with said main control module, comprising: signal sends subelement, signals collecting subelement and handles subelement;
Said signal sends subelement, is used to receive the control command that said main control module sends, and sends test massage to tested power line;
Said signals collecting subelement is used to gather said tested power line and receives the voltage signal that produces after the said test signal, or directly gathers power line;
Said processing subelement is used for said voltage signal is handled, and obtains impedance or noise samples data on the said tested power line.
2. system according to claim 1 is characterized in that, said signal sends subelement and comprises: circuits for triggering, Direct Digital Synthesizer DDS signal generating circuit, power amplification circuit;
Said circuits for triggering are used to produce the triggering signal that triggers said DDS signal generating circuit;
Said DDS signal generating circuit is used to receive said triggering signal, produces test signal;
Said power amplification circuit is used for said test signal is amplified according to pre-conditioned.
3. system according to claim 2 is characterized in that, said processing subelement comprises:
Signal sample circuit AD is used for the voltage signal of said signal gathering unit collection is sampled and the said voltage signal that collects converted into the analog voltage signal of 0～5V;
Dsp processor is used for said analog voltage signal handled obtaining impedance corresponding with it or noise samples data.
4. system according to claim 1 is characterized in that said system also comprises the carrier wave measurement module;
Said main control module; Also be used for when said test instruction is the test instruction of signal of communication pad value; To said carrier wave measurement module sending controling instruction; Control said carrier wave measurement module and measure signal of communication decay sampled data on the tested power line, and calculate the signal of communication pad value of said tested power line according to said sampled data.
5. system according to claim 1 is characterized in that said system also comprises input module;
Said input module links to each other with said main control module, is used to be provided with said main control module parameters.
6. system according to claim 5 is characterized in that, said input module comprises: touch screen or keyboard input module.
7. system according to claim 6 is characterized in that said system also comprises display module;
Said display module links to each other with said main control module, the parameters of the test value of the tested power line that is used to show that said main control module calculates and the said main control module imported through said input module.
8. system according to claim 4 is characterized in that said system also comprises memory module;
Said memory module, the pad value of sampled data, resistance value, noise level and the said tested electric-power wire communication signal of the said tested power line that is used for said main control module is obtained is stored.
9. a power line carrier communication environmental testing method is characterized in that, is applied to power line carrier communication environmental testing system, and said system comprises impedance noise measurement module, main control module and power module, and this method comprises:
Said main control module receives the test instruction of user's input;
When said test instruction is impedance or noise testing instruction, to said impedance noise measurement module sending controling instruction;
Said impedance noise measurement module sends test massage to tested power line; Gather said tested power line and receive the voltage signal that produces after the said test signal; And said voltage signal handled, obtain impedance or noise samples data on the said tested power line;
Said main control module calculates the impedance or the noise testing value of said tested power line according to said sampled data.
10. method of testing according to claim 9 is characterized in that, when said system also comprises the carrier wave measurement module, when said test instruction was the test instruction of signal of communication pad value, this method also comprised:
Said main control module is to said carrier wave measurement module sending controling instruction;
Said carrier wave measurement module is measured the signal of communication decay sampled data on the said tested power line;
Said main control module calculates the pad value of the signal of communication of said tested power line according to said sampled data.
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| CN103001666A (en) * | 2012-11-26 | 2013-03-27 | 中国电力科学研究院 | Low-voltage power line carrier channel attenuation characteristic test system and control method thereof |
| CN103063926A (en) * | 2012-12-19 | 2013-04-24 | 中国电力科学研究院 | Test method and test device for low-voltage power line narrowband carrier access 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 |
| CN104184494A (en) * | 2014-08-29 | 2014-12-03 | 国家电网公司 | Testing system and method for broadband power line carrier channel access resistance |
| WO2015117381A1 (en) * | 2014-02-10 | 2015-08-13 | 瑞斯康微电子（深圳）有限公司 | Power-line carrier communications tester |
| CN106249016A (en) * | 2015-06-11 | 2016-12-21 | 安立股份有限公司 | Sample circuit, the method for sampling, sampling oscilloscope and method for displaying waveform |
| CN108169589A (en) * | 2017-12-08 | 2018-06-15 | 囯网河北省电力有限公司电力科学研究院 | Power line communication environment measuring device and test method |
| CN108731794A (en) * | 2018-05-22 | 2018-11-02 | 南方电网科学研究院有限责任公司 | A kind of multifunctional tester |
| CN110299932A (en) * | 2019-06-12 | 2019-10-01 | 国网江苏省电力有限公司南京供电分公司 | Distribution network and equipment running status online recognition method based on power line signal |
| CN113660691A (en) * | 2021-10-19 | 2021-11-16 | 国网江西省电力有限公司经济技术研究院 | Medium-voltage MIMO-PLC access terminal state monitoring device |
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| 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 |
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| CN104184494A (en) * | 2014-08-29 | 2014-12-03 | 国家电网公司 | Testing system and method for broadband power line carrier channel access resistance |
| CN104184494B (en) * | 2014-08-29 | 2016-09-21 | 国家电网公司 | A kind of test system and method for broadband power line carrier channel access impedance |
| CN106249016A (en) * | 2015-06-11 | 2016-12-21 | 安立股份有限公司 | Sample circuit, the method for sampling, sampling oscilloscope and method for displaying waveform |
| CN108169589A (en) * | 2017-12-08 | 2018-06-15 | 囯网河北省电力有限公司电力科学研究院 | Power line communication environment measuring device and test method |
| CN108731794A (en) * | 2018-05-22 | 2018-11-02 | 南方电网科学研究院有限责任公司 | A kind of multifunctional tester |
| CN110299932A (en) * | 2019-06-12 | 2019-10-01 | 国网江苏省电力有限公司南京供电分公司 | Distribution network and equipment running status online recognition method based on power line signal |
| CN113660691A (en) * | 2021-10-19 | 2021-11-16 | 国网江西省电力有限公司经济技术研究院 | Medium-voltage MIMO-PLC access terminal state monitoring device |
| CN113660691B (en) * | 2021-10-19 | 2022-03-11 | 国网江西省电力有限公司经济技术研究院 | Medium-voltage MIMO-PLC access terminal state monitoring device |
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