CN202524395U - General test platform for low-voltage carrier automatic meter reading system - Google Patents
General test platform for low-voltage carrier automatic meter reading system Download PDFInfo
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- CN202524395U CN202524395U CN2011204274568U CN201120427456U CN202524395U CN 202524395 U CN202524395 U CN 202524395U CN 2011204274568 U CN2011204274568 U CN 2011204274568U CN 201120427456 U CN201120427456 U CN 201120427456U CN 202524395 U CN202524395 U CN 202524395U
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Abstract
The utility model discloses a general test platform for a low-voltage carrier automatic meter reading system, comprising a test platform body and a device cabinet, wherein the test platform body is provided with a single phase meter, a test meter being available for a three phase meter, a carrier signal sending end, a carrier signal receiving signal, a coupler, a programmable attenuator, a programmable impedance simulator and a V-shaped artificial network. The general test platform for a low-voltage carrier automatic meter reading system not only can complete the low-voltage carrier communication module center frequency index test, the maximum output level index test, the antidumping index test, the anti-noise index, the anti-impedance change index test, the out-of-band interference level index test, the receiving sensitivity index test, the long-time communication reliability index test, and the signal to noise ratio index test, but also can effectively simulate the leading features of the low-voltage power line carrier narrow band communication channel, such as attenuation, noise and impedance changes, and the like.
Description
Technical field
The utility model belongs to the detection technique field, the general detection platform of particularly a kind of low pressure carrier wave centralized meter-reading system.
Background technology
Low-voltage powerline carrier communication is the carrier communication of making transmission medium with power line, does not need other building communication lines, and power line structures is firm, and is very high as the communication medium dependability.Power line carrier communication is the distinctive a kind of communication mode of power department, is specially adapted to the data acquisition at power system dispatching, electric energy terminal and the communication and the Network of electric power system operation.Because power line is designed to power consumption equipment originally and transmits electric energy, itself is not to be design of communication, so its characteristic is difficult to directly satisfy the requirement of carrier communication aspect a lot.The power line especially channel circumstance of low-voltage network is abominable; There are characteristics such as impedance matching property is poor, noise jamming is unpredictable, signal attenuation is strong, characteristic of channel time variation height; Brought many difficulties therefore for the research of power-line carrier communication; Proposed very high requirement also for the power line carrier communication performance of products, lack very much a kind of device that can carry out accurate quantitative test at present the point-to-point communication ability of carrier communication equipment.
In order to pass judgment on the communication performance of low-voltage carrier communication product; For its reliable application under full-scale condition provides guidance; Present stage presses for the practical situations according to Chinese electrical network; Exploitation has the communication performance test macro of the low pressure carrier wave equipment of independent intellectual property right, to realize Validity Test and the assessment to carrier equipment, strengthens the quality control to carrier communication equipment.
Present stage since external low pressure narrowband carrier collection to copy technical application less, very limited to the research of related communication detection technique, only limit to university and part scientific research institution; Technical merit also mainly rests on the testing equipment Assembly Phase of separate type, and equipment manufacturing cost is high, and is bulky; Complicated operation; But because each quasi-instrument is not to be the design of carrier communication channel simulation specially, the functional parameter waste is comparatively serious, and combination can only simply be simulated the part communication performance later; The also effective frequency response characteristic of analog channel in the simulation process, effect is unsatisfactory.Along with domestic the application for the low pressure carrier wave centralized meter-reading system increased; The research of correlated carrier wave communication check platform also comes into one's own gradually; But owing to receive the restriction of technical merit, domestic test for the low-voltage carrier communication product at present is fairly simple, can measured performance indicators seldom; Can not cover whole communication performances of low pressure carrier wave equipment fully, more can not carry out quantitative measurment item by item for the singal reporting code of low pressure carrier wave equipment.
Existing test macro is made up of computer communication system, programmable attenuator, program control noise simulator, programmable impedance simulator, frequency spectrograph, oscilloscope, artificial mains network, power conditioner, industrial computer and TT&C software.Test macro is controlled tested carrier wave transmitter through computer interface and is sent carrier signal; System is sent to tested carrier wave receiver with carrier signal; At the carrier wave transmitter to the transmission path of carrier wave receiver, system constructing one cover carrier channel analogue means comprise that program control signal attenuator, program control noise simulator, programmable impedance simulator and various testing equipment comprise spectrum analyzer, digital oscilloscope etc.The action of inner industrial computer control testing equipment and carrier channel analogue means.The artificial mains network provides carrier level test impedance with reference to environment.Power conditioner provides the test macro good working environment, reduces the influence of extraneous power supply noise to test result.Existing low pressure carrier wave product tester is paid attention to the test for electric energy metrical index in the low pressure carrier wave centralized meter-reading system; Test for each item singal reporting code is main with observational measurement, does not possess for the test of communication reliability index and the power of test of group-net communication performance.
Summary of the invention
One of purpose of the utility model provides the general detection platform of a kind of low pressure carrier wave centralized meter-reading system.
The general detection platform of low pressure carrier wave centralized meter-reading system that the utility model provides comprises test stage body and rack, and said test stage body is provided with single-phase table, general test chart, carrier signal transmitting terminal, carrier signal receiving terminal, coupler, programmable attenuator, programmable impedance analogue means and the V-type artificial network of three-phase table; Place spectrum analyzer, AWG, carrier communication and channel simulation instrument control computer and three-phase insulating power supply in the said rack; Said carrier communication is connected with said spectrum analyzer through said V-type artificial network with channel simulation instrument control computer; Be connected said programmable attenuator between said carrier signal transmitting terminal and the said carrier signal receiving terminal, said programmable attenuator is connected with said carrier communication and channel simulation instrument control computer; Said AWG is connected with channel simulation instrument control computer with said carrier communication through said coupler; Said carrier communication is connected with said control impedance analogue means with channel simulation instrument control computer.
Said carrier signal transmitting terminal comprises concentrator or virtual concentrator.
Said carrier signal receiving terminal comprises carrier wave meter or Virtual table.
The number of said single-phase table is 6.
The number of the test chart that said three-phase table is general is 2.
Said three-phase insulating power supply band isolator or trap.
Also be connected with high pass filter between said carrier signal transmitting terminal and the said programmable attenuator; Also be connected with high pass filter between said carrier signal receiving terminal and the said programmable attenuator.
The general detection platform of low pressure carrier wave centralized meter-reading system that the utility model provides not only can be accomplished low-voltage carrier communication module centers Frequency Index is tested; The Maximum Output Level index test; The antidamping index test; The antinoise index test; Anti-impedance variations index test; Be with outer interference level index test; The receiving sensitivity index test; The test of long-term communication reliability index; The signal to noise ratio index test, and can simulate the key properties such as decay, noise and impedance variations in the low voltage power line carrier narrow band communication channel effectively.
Description of drawings
Fig. 1 is the structured flowchart of the general detection platform of low pressure carrier wave centralized meter-reading system that provides of the utility model embodiment.
Embodiment
Referring to Fig. 1, the general detection platform of automatic one-stop low pressure carrier wave centralized meter-reading system that the utility model embodiment provides comprises test stage body and rack.Wherein test 6 single-phase tables and 2 test charts that the three-phase table is general, carrier signal transmitting terminal, carrier signal receiving terminal are set on the stage body.Wherein, the carrier signal transmitting terminal comprises concentrator or virtual concentrator.The carrier signal receiving terminal comprises carrier wave meter or Virtual table.Below stage body or the epi-position back side place testing tools such as high pass filter, coupler, programmable attenuator, programmable impedance analogue means, V-type artificial network.
Place spectrum analyzer, AWG, 24V DC power supply, carrier communication and channel simulation instrument control computer, three-phase insulating power supply equipment such as (band isolator or traps) in the rack.
Carrier communication is connected with said spectrum analyzer through said V-type artificial network with channel simulation instrument control computer.Be connected programmable attenuator between carrier signal transmitting terminal and the carrier signal receiving terminal.Programmable attenuator is connected with channel simulation instrument control computer with carrier communication.AWG is connected with channel simulation instrument control computer with said carrier communication through said coupler.Carrier communication is connected with control impedance analogue means with channel simulation instrument control computer.Further, also be connected with high pass filter between carrier signal transmitting terminal and the programmable attenuator; Also be connected with high pass filter between carrier signal receiving terminal and the said programmable attenuator.
This design platform has the equipment self-inspection function, can show the operating state of each equipment; Can in test, control dependence test equipment automatically, read test result from testing equipment can write down relevant test result automatically, and preserves, and can output test result according to certain format.This design platform can be accomplished the carrier communication performance test of defined automatically through simple click, like whole project testings, wherein certain index test, the wherein test of several indexs.Index test comprises:
The test of output center Frequency Index; Through the V-type artificial network, be connected to spectrum analyzer, spectrum analyzer record carrier communication frequency, unit is Hz, carrier communication and channel simulation instrument control computer, are exported through test report directly from the spectrum analyzer reading through serial ports.
The Maximum Output Level index test; Through the V-type artificial network, be connected to spectrum analyzer, spectrum analyzer record Maximum Output Level, unit is dB μ V, carrier communication and channel simulation instrument control computer directly read from spectrum analyzer through serial ports, export through test report.
The antidamping index test; Between carrier signal transmitting terminal (concentrator or virtual concentrator) and carrier signal receiving terminal (carrier wave meter or Virtual table), insert programmable attenuator, the pad value of carrier communication and channel simulation instrument control computer control programmable attenuator.
The antinoise index test; The AWG output noise, through coupler injected carrier communication system, carrier communication and channel simulation instrument control computer are through the intensity of serial ports control output noise; Begin from the noise intensity lower grade earlier; Each intensity increases 1dB, communicates by letter the success rate of checking meter of record carrier meter reading system 10 times at every turn; When the communication success rate is 0, stop test.
Anti-impedance variations index test; Carrier communication and channel simulation instrument control computer are through the impedance of serial ports transmitting control commands adjustment programmable impedance analogue means, and one grade of every adjustment is checked meter 10 times continuously, writes down the success rate of checking meter, and is 0 up to the communication success rate, then stops test.
Be with outer interference level index test; Through the V-type artificial network, be connected to spectrum analyzer, the outer interference level of spectrum analyzer record paper, unit is dB μ V, carrier communication and channel simulation instrument control computer directly read from spectrum analyzer through serial ports, export through test report.
The receiving sensitivity index test; Send the order of checking meter by concentrator or virtual concentrator, carrier chip is exported the carrier signal of certain power through behind the power amplifier; Adjust program control programmable attenuator, one grade of every accent is communicated by letter 10 times; The record communication success rate; The carrier signal strength of receiving with spectrum analyzer record carrier wave meter termination simultaneously is 0 up to the communication success rate, then stops test.
The test of long-term communication reliability index; Send the order of checking meter by concentrator or virtual concentrator are every at a distance from a set time (time can be passed through software setting), the certain number of times of copy reading (number of times can software setting) is added up the success rate of checking meter continuously.
The signal to noise ratio index test; AWG is exported the noise of certain intensity, and concentrator or virtual concentrator send carrier signal, checks meter through programmable attenuator, reads carrier signal strength at receiving terminal (carrier wave meter end) by spectrum analyzer simultaneously, and record.The pad value of a programmable attenuator of every adjustment is checked meter 10 times continuously, adds up the success rate of checking meter, and record, repeats above process, is 0 up to the success rate of checking meter.
The foundation of this platform will be filled up the blank of domestic low pressure carrier wave centralized meter-reading system simulation and Testing Technology Study; Play facilitation to promoting the detectability that domestic low pressure carrier wave collection copies product and system; For large-scale promotion low pressure carrier wave centralized meter-reading system provides a kind of new systemic detection means; To establishing and improve power consumer power information acquisition system, advance the construction of national intelligent grid that significant meaning is arranged.
The foregoing description is the utility model preferred implementation; But the execution mode of the utility model is not restricted to the described embodiments; Other any do not deviate from change, the modification done under spirit and the principle of the utility model, substitutes, combination, simplify; All should be the substitute mode of equivalence, be included within the protection range of the utility model.
Claims (7)
1. the general detection platform of low pressure carrier wave centralized meter-reading system is characterized in that, comprising:
Test stage body and rack, said test stage body is provided with single-phase table, general test chart, carrier signal transmitting terminal, carrier signal receiving terminal, coupler, programmable attenuator, programmable impedance analogue means and the V-type artificial network of three-phase table;
Place spectrum analyzer, AWG, carrier communication and channel simulation instrument control computer and three-phase insulating power supply in the said rack;
Said carrier communication is connected with said spectrum analyzer through said V-type artificial network with channel simulation instrument control computer;
Be connected said programmable attenuator between said carrier signal transmitting terminal and the said carrier signal receiving terminal, said programmable attenuator is connected with said carrier communication and channel simulation instrument control computer;
Said AWG is connected with channel simulation instrument control computer with said carrier communication through said coupler;
Said carrier communication is connected with said control impedance analogue means with channel simulation instrument control computer.
2. the general detection platform of low pressure carrier wave centralized meter-reading system according to claim 1 is characterized in that, said carrier signal transmitting terminal comprises:
Concentrator or virtual concentrator.
3. the general detection platform of low pressure carrier wave centralized meter-reading system according to claim 1 is characterized in that, said carrier signal receiving terminal comprises:
Carrier wave meter or Virtual table.
4. the general detection platform of low pressure carrier wave centralized meter-reading system according to claim 1 is characterized in that:
The number of said single-phase table is 6.
5. the general detection platform of low pressure carrier wave centralized meter-reading system according to claim 1 is characterized in that:
The number of the test chart that said three-phase table is general is 2.
6. the general detection platform of low pressure carrier wave centralized meter-reading system according to claim 1 is characterized in that:
Said three-phase insulating power supply band isolator or trap.
7. according to the general detection platform of each described low pressure carrier wave centralized meter-reading system of claim 1-6, it is characterized in that:
Also be connected with high pass filter between said carrier signal transmitting terminal and the said programmable attenuator; Also be connected with high pass filter between said carrier signal receiving terminal and the said programmable attenuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204274568U CN202524395U (en) | 2011-11-02 | 2011-11-02 | General test platform for low-voltage carrier automatic meter reading system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204274568U CN202524395U (en) | 2011-11-02 | 2011-11-02 | General test platform for low-voltage carrier automatic meter reading system |
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| CN202524395U true CN202524395U (en) | 2012-11-07 |
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| CN2011204274568U Expired - Lifetime CN202524395U (en) | 2011-11-02 | 2011-11-02 | General test platform for low-voltage carrier automatic meter reading system |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103353545A (en) * | 2013-07-22 | 2013-10-16 | 国家电网公司 | Voltage and current loop carrier wave isolation and attenuation equipment |
| CN103700244A (en) * | 2013-12-03 | 2014-04-02 | 国家电网公司 | Power line carrier type meter reading and networking test system |
| CN103841472A (en) * | 2014-02-28 | 2014-06-04 | 国家电网公司 | Case |
| CN105448078A (en) * | 2015-12-04 | 2016-03-30 | 中国电力科学研究院 | Detection device of electricity consumption information collection equipment |
| CN105634551A (en) * | 2014-10-30 | 2016-06-01 | 国家电网公司 | Carrier wave communication equipment electrical property test system and method |
| CN107294562A (en) * | 2017-08-16 | 2017-10-24 | 国家电网公司 | Low-voltage power carrier module simulation detection means |
| CN107612642A (en) * | 2017-10-20 | 2018-01-19 | 国网安徽省电力公司电力科学研究院 | A kind of signal band and out-of-band interference level method of testing |
| CN108023613A (en) * | 2017-10-31 | 2018-05-11 | 杭州华立电力系统工程有限公司 | Carrier communication module detection device and carrier communication module detection method |
| CN109981140A (en) * | 2019-04-26 | 2019-07-05 | 深圳芯珑电子技术有限公司 | A kind of power carrier communication module power sensitivity test macro |
| CN113691283A (en) * | 2021-09-18 | 2021-11-23 | 广东电网有限责任公司 | Carrier communication equipment performance test platform |
| CN113890566A (en) * | 2021-10-26 | 2022-01-04 | 广东电网有限责任公司 | Platform and method for testing conventional performance indexes of power line carrier communication equipment |
-
2011
- 2011-11-02 CN CN2011204274568U patent/CN202524395U/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN103353545A (en) * | 2013-07-22 | 2013-10-16 | 国家电网公司 | Voltage and current loop carrier wave isolation and attenuation equipment |
| CN103353545B (en) * | 2013-07-22 | 2015-06-10 | 国家电网公司 | Voltage and current loop carrier wave isolation and attenuation equipment |
| CN103700244A (en) * | 2013-12-03 | 2014-04-02 | 国家电网公司 | Power line carrier type meter reading and networking test system |
| CN103841472B (en) * | 2014-02-28 | 2018-05-29 | 国家电网公司 | Cabinet |
| CN103841472A (en) * | 2014-02-28 | 2014-06-04 | 国家电网公司 | Case |
| CN105634551A (en) * | 2014-10-30 | 2016-06-01 | 国家电网公司 | Carrier wave communication equipment electrical property test system and method |
| CN105448078A (en) * | 2015-12-04 | 2016-03-30 | 中国电力科学研究院 | Detection device of electricity consumption information collection equipment |
| CN107294562A (en) * | 2017-08-16 | 2017-10-24 | 国家电网公司 | Low-voltage power carrier module simulation detection means |
| CN107294562B (en) * | 2017-08-16 | 2020-11-10 | 国家电网公司 | Low-voltage power carrier module simulation detection device |
| CN107612642A (en) * | 2017-10-20 | 2018-01-19 | 国网安徽省电力公司电力科学研究院 | A kind of signal band and out-of-band interference level method of testing |
| CN108023613A (en) * | 2017-10-31 | 2018-05-11 | 杭州华立电力系统工程有限公司 | Carrier communication module detection device and carrier communication module detection method |
| CN109981140A (en) * | 2019-04-26 | 2019-07-05 | 深圳芯珑电子技术有限公司 | A kind of power carrier communication module power sensitivity test macro |
| CN113691283A (en) * | 2021-09-18 | 2021-11-23 | 广东电网有限责任公司 | Carrier communication equipment performance test platform |
| CN113890566A (en) * | 2021-10-26 | 2022-01-04 | 广东电网有限责任公司 | Platform and method for testing conventional performance indexes of power line carrier communication equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA Effective date: 20121219 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee |
Owner name: THE MEASURE CENTER OF JIBEI ELECTRIC POWER CO., LT Free format text: FORMER NAME: MEASURING CENTER OF NORTH CHINA GRID COMPANY LIMITED |
|
| CP03 | Change of name, title or address |
Address after: 100045 Beijing city Xicheng District No. 1 Nan Xiang Di Zang an Patentee after: JIBEI ELECTRIC POWER COMPANY LIMITED CENTER OF METROLOGY Address before: 100045 Beijing city Xicheng District No. 1 Nan Xiang Di Zang an 10 Building 2 layer Patentee before: NORTH CHINA GRID COMPANY LIMITED CENTER OF METROLOGY |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20121219 Address after: 100045 Beijing city Xicheng District No. 1 Nan Xiang Di Zang an Patentee after: JIBEI ELECTRIC POWER COMPANY LIMITED CENTER OF METROLOGY Patentee after: State Grid Corporation of China Address before: 100045 Beijing city Xicheng District No. 1 Nan Xiang Di Zang an Patentee before: JIBEI ELECTRIC POWER COMPANY LIMITED CENTER OF METROLOGY |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121107 |
|
| CX01 | Expiry of patent term |