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: 2011-11-23
CHINA ELECTRIC POWER RES INST +1
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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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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 invention relates to carrier communication test equipment, which is characterized by comprising test bench body and a computer body, wherein the test bench body is connected with the computer body by Ethernet; and the computer body is operated to control the test bench body, change channel parameters and acquire test information. The equipment tests the performance of communication between an acquisition terminal and a carrier electric meter; and a design scheme of constructing low voltage power line carrier communication channels in the test equipment is put forward, so that a system counts communication results and measures the channel parameters in a continuous communication state to obtain index parameters of a current carrier communication channel, low voltage power line carrier communication equipment meets the requirements of related standards, and technical support is provided for the acceleration of construction of a power consumer power consumption information acquisition system and a robust smart power 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 Applications(China)
IPC IPC(8): H04B3/54H04B17/00
CPCH04B3/54H04B2203/5495H04B17/00H04B2203/5433
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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