CN202524383U - Testing device for low-voltage power line network - Google Patents
Testing device for low-voltage power line network Download PDFInfo
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- CN202524383U CN202524383U CN201220129913XU CN201220129913U CN202524383U CN 202524383 U CN202524383 U CN 202524383U CN 201220129913X U CN201220129913X U CN 201220129913XU CN 201220129913 U CN201220129913 U CN 201220129913U CN 202524383 U CN202524383 U CN 202524383U
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- 238000012360 testing method Methods 0.000 title claims abstract description 13
- 241000239290 Araneae Species 0.000 claims description 17
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 7
- 238000004891 communication Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Abstract
The utility model relates to a testing device for a low-voltage power line network, which comprises a carrier signal coupler for isolating and coupling purposes, and a carrier channel analyzer for analyzing the characteristics of a carrier. The carrier signal coupler is connected with a low-voltage power line network. The carrier channel analyzer is connected with the carrier signal coupler. Compared with the prior art, the testing device has the advantages of simple structure, anti interference and the like.
Description
Technical field
The utility model relates to a kind of electrical network characteristic test device, especially relates to a kind of testing apparatus that is used for the low-voltage power spider lines.
Background technology
Generally speaking; The communication efficiency of low-voltage powerline carrier communication system on the power information acquisition system both relevant (carrier modulation mode, carrier frequency band scope etc.) with the communication technology itself that carrier system is adopted; Simultaneously relevant with the characteristic of channel of power line network itself, network topology structure, load characteristic etc. again, therefore the actual low-voltage power line network characterization test macro of design must be done unified consideration to this two aspect.
The carrier signal transmission characteristic of low-voltage power spider lines typically refers to the transmission attenuation characteristic of carrier signal when the low-voltage power line Network Transmission, the i.e. amplitude-frequency characteristic of signal transfer function.Under the certain condition of transmitting terminal signal power, the signal transfer function of low-voltage power spider lines has determined the signal strength signal intensity that receiving terminal is received.Reception is also relevant with the high-frequency noise of low-voltage power spider lines simultaneously.The transmission characteristic of carrier signal and noise characteristic have together constituted the carrier communication characteristic of channel of low-voltage power spider lines.
Power line network belongs to strong active network, and network topology structure is complicated, and the network characterization time variation is stronger, and the characteristic of measuring power line network is different from the feature measurement of active network under the general condition or passive network.Because the carrier communication system of low-voltage power spider lines generally is under the condition of low voltage electric network operate as normal, to communicate, so that the measurement of its network characteristic also has only is just meaningful with this understanding.So just relate to and how to realize forceful electric power (50Hz; The coupling of the isolation 220V electric power signal) and light current (9k～500kHz carrier signal); And network is not opened a way, under the condition that short circuit is handled, the problems such as carrier signal transmission characteristic of Measurement Network how.
Summary of the invention
The purpose of the utility model is exactly for the defective that overcomes above-mentioned prior art existence a kind of testing apparatus that is used for the low-voltage power spider lines simple in structure, jamproof to be provided.
The purpose of the utility model can realize through following technical scheme:
A kind of testing apparatus that is used for the low-voltage power spider lines; This device comprises and is used to isolate and carrier signal coupler that is coupled and the carrier channel analyzer that is used to analyze carrier characteristics; Described carrier signal coupler is connected with the low-voltage power spider lines, and described carrier channel analyzer is connected with the carrier signal coupler.
Described carrier signal coupler is provided with a plurality of, and a plurality of carrier signal couplers all are connected to the carrier channel analyzer.
Described carrier channel analyzer comprises noise analysis unit, Transmission characteristics unit and transfer of data analysis unit.
Compared with prior art, the utility model is core with low-voltage power line network carrier channel analyzer, and is simple in structure, do not need network is opened a way or the short circuit processing, get final product the carrier signal characteristic of Measurement Network, and anti-interference is good.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated.
As shown in Figure 1; A kind of testing apparatus that is used for the low-voltage power spider lines; This device comprises the carrier channel analyzer 3 that is used for the carrier signal coupler 2 that forceful electric power is isolated and light current is coupled and is used to analyze carrier characteristics; Carrier signal coupler 2 is connected with low-voltage power spider lines 1, and carrier channel analyzer 3 is connected with carrier signal coupler 2.Described carrier signal coupler 2 is provided with a plurality of according to the scale of low-voltage power spider lines, a plurality of carrier signal couplers 2 all are connected to carrier channel analyzer 3.Carrier channel analyzer 3 comprises noise analysis unit, Transmission characteristics unit and transfer of data analysis unit, can test noise, transmission characteristic, the data packet transmission of low-voltage power spider lines.
Claims (2)
1. testing apparatus that is used for the low-voltage power spider lines; It is characterized in that; This device comprises and is used to isolate and carrier signal coupler that is coupled and the carrier channel analyzer that is used to analyze carrier characteristics; Described carrier signal coupler is connected with the low-voltage power spider lines, and described carrier channel analyzer is connected with the carrier signal coupler.
2. a kind of testing apparatus that is used for the low-voltage power spider lines according to claim 1 is characterized in that described carrier signal coupler is provided with a plurality of, and a plurality of carrier signal couplers all are connected to the carrier channel analyzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220129913XU CN202524383U (en) | 2012-03-30 | 2012-03-30 | Testing device for low-voltage power line network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220129913XU CN202524383U (en) | 2012-03-30 | 2012-03-30 | Testing device for low-voltage power line network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202524383U true CN202524383U (en) | 2012-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220129913XU Expired - Lifetime CN202524383U (en) | 2012-03-30 | 2012-03-30 | Testing device for low-voltage power line network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202524383U (en) |
Cited By (2)
| 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 |
| CN110971271A (en) * | 2019-12-02 | 2020-04-07 | 成都长城开发科技有限公司 | Power grid test method and test system |
-
2012
- 2012-03-30 CN CN201220129913XU patent/CN202524383U/en not_active Expired - Lifetime
Cited By (3)
| 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 |
| 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 |
| CN110971271A (en) * | 2019-12-02 | 2020-04-07 | 成都长城开发科技有限公司 | Power grid test method and test system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121107 |