Carrier communication test equipment
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA ELECTRIC POWER RES INST
- Publication Date
- 2015-01-21
Smart Images
Figure 1
Abstract
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...