CN203661059U - Parallel carrier wave communication tester - Google Patents
Parallel carrier wave communication tester Download PDFInfo
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- CN203661059U CN203661059U CN201320892218.3U CN201320892218U CN203661059U CN 203661059 U CN203661059 U CN 203661059U CN 201320892218 U CN201320892218 U CN 201320892218U CN 203661059 U CN203661059 U CN 203661059U
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- carrier wave
- test
- network circuit
- filter network
- wave communication
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Abstract
The utility model discloses a parallel carrier wave communication tester. The parallel carrier wave communication tester comprises a power module used for providing power for detected carrier wave equipment, a filter network circuit used for filtering electrical network noise waves and a test tool, wherein the filter network circuit is an LCL filter network circuit, one end of the filter network circuit is connected with the power module, and an output end of the filter network circuit is connected with an input end of a detected object through the test tool. According to the parallel carrier wave communication tester, an independent test between adjacent concentrators is realized through the filter network circuit, so field test requirements for carrier wave communication functions of the concentrators or other detected objects can be satisfied, operation is simple, the electrical network noise waves can be effectively isolated, interference signals such as field noise, time-variable impedance and dynamic attenuation in the electrical network environment can be effectively shielded and prevented, a pureness test environment is provided for testing the concentrator, a gatherer, an electric energy meter and a control device, different meter positions can be tested independently, and crosstalk among the different meter positions and interference are avoided.
Description
Technical field
The utility model relates to industries such as belonging to electrical network, electrical measurement, electric energy, power consumption equipment metering, relates in particular to a kind of parallel carrier communication testing apparatus.
Background technology
Along with scientific and technological progress, national grid payes attention to carrying out carrying out of electric energy metrical work, electric energy metrical product, power line carrier, PLC product come into the market fast under the double drive of the market demand and national policy, the products such as concentrator, electric energy meter, collector have emerged in an endless stream, and the accuracy of measuring products and the detection of metering outfit are being brought into play very important effect to national product.Especially when typical products in mass production is tested simultaneously, and produce, exploitation, test, application process in lack effectively test, checking means, cause the metering outfits such as concentrator, electric energy meter, collector in service in actual electric network, and in metering testing process, be faced with the motional impedance that is subject in power line communication environment, random noise, time become the impact of the factors such as decay and voltage fluctuation, to analyzing and properties of product, reliability, adaptability, the accuracy of check gauging instrument exist serious challenge.In complicated unsettled electrical network test environment, no matter collector or the test of carrier electric energy meter easily produce and crosstalk between each epi-position, disturb, measurand is produced to serious interference, cause test data inaccurate; For above-mentioned interference, existing measuring technology is successively each station to be tested, and a station is completed, then second station tested, test successively, and such technical method has increased the testing time greatly.
Utility model content
The purpose of this utility model is to provide a kind of parallel carrier communication testing apparatus, can effectively solve the signal cross-talk of adjacent epi-position in test process, can make independent test between each station, not affect other epi-position signal, guarantee the accurate, reliable of test data.
The utility model adopts following technical proposals:
A kind of parallel carrier communication testing apparatus, a kind of parallel carrier communication testing apparatus, be included as the power module of tested carrier equipment power supply, be filtering netwok and the testing tool of filtering electrical network clutter, described filtering netwok is LCL filtering netwok; One end of filtering netwok is connected with power module, and the output of filtering netwok connects and is connected with the input of measurand by testing tool.
Described testing tool is carrier signal transducer.
Described carrier signal transducer number is multiple, and multiple carrier signal transducers are connected to the output of filtering netwok.
The utility model is realized the independent test of facing between a concentrator by filtering netwok, or enough satisfied on-the-spot test requests to other measurand carrier communication function of concentrator, simple to operate, portable, can effectively isolate electrical network clutter, can effectively shield and stop the interference signals such as on-site noise in power grid environment, time-variable impedance, dynamic attenuation, for the test of concentrator, collector, electric energy meter, control device etc. provides pure test environment, make the independent test of different epi-position energy, between epi-position, do not crosstalk, do not disturb.Effectively solve and tested test drawback single, inefficiency early stage.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present utility model.
Embodiment
As shown in Figure 1, a kind of parallel carrier communication testing apparatus, is included as the power module of tested carrier equipment power supply, filtering netwok and testing tool for filtering electrical network clutter and other carrier signal; Power module described in the present invention adopts programmable power supply, also can be other working power and is mainly filter circuit working power is provided.
Described filtering netwok adopts the LCL filtering netwok of inductance and electric capacity composition, specifically can adopt the mode of connection of single-phase, three-phase and four-line or phase three-wire three, and one end is connected with power supply, and the other end is connected with the input of checked object.Filtering netwok can have filtering electrical network clutter and other carrier signal effectively, makes tested end not be subject to the impact of test signal around, has guaranteed the accurate, reliable of test data.The output of filtering netwok connects and is connected with the input of measurand by testing tool, measurand can be concentrator, collector, electric energy meter etc., measurand connects input, the output interface of filtering netwok, interface is used for being connected to carry out carrier communication with concentrator to be tested or the carrier communication interface of carrier electric energy meter or collector, and the present invention tests take concentrator as example.
Described testing tool is carrier signal transducer.Testing tool is connected with measurand, and direct and testing tool forms detection loop, and this can be unit 1.Carrier signal transducer is the carrier wave control device generally using in the market, and this is matured product, is prior art.Described carrier signal transducer number is multiple, multiple carrier signal transducers are connected to the output of filtering netwok, in the time that measurand concentrator starts to test, input, the output signal of test signal are blocked by LCL filter circuit, signal can not be input to other adjacent epi-position, form test loop alone, other unit is not played to signal to be disturbed, multiple like this carrier signal transducers can be tested respectively, also can test simultaneously, can once be designated as unit 2, unit 3 ... unit N.
As shown in Figure 1, measurand connects the input/output interface of filtering netwok, testing tool is connected with measurand, direct and testing tool forms detection loop, one side of unit 1, unit 2,3.... unit, unit N is all connected with the input and output of filtering netwok, and another side is connected with testing tool respectively, do not do carrier communication test in the time of the projects such as the error of normal inspection table time, press relay switch, make each detect loop in short circuit state; When carrying out three-phase or a certain carrying out mutually carrier wave parallel communication when test wherein, again pressing relay switch three-phase voltage or a phase voltage is to be powered by school carrier equipment by carrier circuit; The carrier communication signal that each epi-position is sent when carried out carrier wave test by calibration equipment cannot be delivered in other epi-position at the signal forming on voltage bus after the filtering of carrier wave filter circuit again, thereby reach carrier wave isolation, that realizes that carrier wave parallel communications can allow each epi-position can carry out carrier communication simultaneously.
Test signal is to unit 1, unit 2, unit 3....... station N independent test separately, test signal is separately to not forming each other crosstalk phenomenon, and in order to realize, laboratory and the on-the-spot carrier communication to concentrator or carrier electric energy meter or collector under various states test obtain accurately, data are being brought into play critical effect reliably.
Claims (3)
1. a parallel carrier communication testing apparatus, is characterized in that: be included as the power module of tested carrier equipment power supply, be filtering netwok and the testing tool of filtering electrical network clutter, described filtering netwok is LCL filtering netwok; One end of filtering netwok is connected with power module, and the output of filtering netwok connects and is connected with the input of measurand by testing tool.
2. parallel carrier communication testing apparatus according to claim 1, is characterized in that: described testing tool is carrier signal transducer.
3. parallel carrier communication testing apparatus according to claim 2, is characterized in that: described carrier signal transducer number is multiple, and multiple carrier signal transducers are connected to the output of filtering netwok.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320892218.3U CN203661059U (en) | 2013-12-31 | 2013-12-31 | Parallel carrier wave communication tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320892218.3U CN203661059U (en) | 2013-12-31 | 2013-12-31 | Parallel carrier wave communication tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203661059U true CN203661059U (en) | 2014-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320892218.3U Expired - Fee Related CN203661059U (en) | 2013-12-31 | 2013-12-31 | Parallel carrier wave communication tester |
Country Status (1)
| Country | Link |
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| CN (1) | CN203661059U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107356897A (en) * | 2017-07-20 | 2017-11-17 | 云南电网有限责任公司电力科学研究院 | Carrier electric energy meter detecting system and detection method |
| CN107783074A (en) * | 2017-09-28 | 2018-03-09 | 云南电网有限责任公司电力科学研究院 | Bandwidth carrier detection system of electric energy meter and detection method |
-
2013
- 2013-12-31 CN CN201320892218.3U patent/CN203661059U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107356897A (en) * | 2017-07-20 | 2017-11-17 | 云南电网有限责任公司电力科学研究院 | Carrier electric energy meter detecting system and detection method |
| CN107783074A (en) * | 2017-09-28 | 2018-03-09 | 云南电网有限责任公司电力科学研究院 | Bandwidth carrier detection system of electric energy meter and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20211231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |