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Carrier communication test equipment

A technology of test equipment and carrier communication, applied in power line communication systems, power line communication applications, systems with measurement/test channels, etc., can solve poor test repeatability and reproducibility, unstable test system, and uncontrollable channel interference and other issues to achieve the effect of ensuring repeatability and reproducibility

Active Publication Date: 2015-01-21
CHINA ELECTRIC POWER RES INST +1
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] At present, when testing low-voltage power line carrier communication, it is necessary to temporarily build a test system with spectrum analyzers and communication equipment, and manually debug and test. The method is simple, the test system is unstable, channel interference is uncontrollable, and test repeatability and reproducibility are poor. Need a stable and controllable carrier communication test equipment

Method used

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  • Carrier communication test equipment

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Embodiment Construction

[0023] A carrier communication test equipment provided by the present invention will be further described in more detail through the accompanying drawings and embodiments below;

[0024] Such as figure 1 As shown, the carrier communication test equipment of this embodiment includes a test bench body and a computer host, and a connection is established between the test bench body and the computer host computer through Ethernet, and the test bench body is controlled by operating the computer host computer, and the channel parameters are changed and collected. test information.

[0025] The test bench body is composed of a clean power supply connected by a power line, a program-controlled attenuator, an inherent attenuation network, an impedance network, a signal generator, a spectrum analyzer, an oscilloscope, an industrial computer and a table; The two power lines are connected to the acquisition terminal and the carrier meter, and the phase-locked loop is used to maintain pha...

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Abstract

The present invention relates to a carrier communication test device, characterized in that the device includes a test board body and a computer mainframe, wherein the test board body establishes a connection with the computer mainframe via the Ethernet. The test board body is controlled by operating the computer mainframe to change channel parameters and acquire test information.The device tests the communication performance between an acquisition terminal and a carrier electric power meter. A design solution for establishing a low-voltage power line carrier communication channel within a test device is proposed, making the system count communication results in a continuous communication state and test channel parameters to obtain index parameters of the current carrier communication channel, making the low-voltage power line carrier communication device meet the requirements of the relevant specifications, and providing technical support for accelerating the building of the power user electric energy information acquisition system and strong smart grid.

Description

technical field [0001] The present invention relates to test equipment, in particular to carrier communication test equipment. Background technique [0002] At present, the acquisition equipment installed by electric power enterprises to collect electricity consumption information of low-voltage users widely adopts the low-voltage power line carrier communication method. Carrier communication can use the existing low-voltage power line as the communication channel, which has the advantages of wide communication coverage, convenient use, no additional investment in channel construction, and no follow-up costs. However, the topology of the carrier communication channel network is complex, the channel parameters change all the time, the harmonic interference generated by various nonlinear loads is serious, the characteristic impedance does not match, the communication quality is easily affected by the region and the time period, and it is difficult to guarantee a stable communi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B3/54H04B17/00
CPCH04B2203/5433H04B3/54H04B2203/5495
Inventor 刘宣祝恩国阿辽沙．叶常蕾夏怡虹唐悦刘岩王燕华孟静潘卫红
Owner CHINA ELECTRIC POWER RES INST
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