Low-voltage power line carrier communication reliable networking method considering equipment communication performance

Abstract

The present invention relates to a low-voltage power line carrier communication reliable networking method considering equipment communication performance. The method includes the following specific steps that: (1) a network analysis model is constructed; (2) initialization is performed; (3), weights are assigned to carrier equipment, so that a weighted network can be formed; (4) the minimum connected dominating set of a power line carrier network is solved; and (5) network optimization is performed, and the method terminates. According to the method of the present invention, a bi-directionalcommunication low-voltage power line carrier communication network is modeled as an undirected connected graph; with an inverse proportion relationship between the signal to noise ratios of the equipment and the bit error rates of carrier communication considered, a weighted network reliability analysis model with the signal to noise ratios of the equipment adopted as the weights is established; on the basis of the minimum connected dominating set in the graph theory, a minimum connected dominating set method for solving a maximal weight is adopted; and therefore, the reliable networking of the low-voltage power line carrier network of an electric power information acquisition system can be realized, a communication error rate can be low, and the utilization rate of network resources can be improved.

Description

technical field [0001] The invention belongs to the field of power line carrier communication, relates to the field of low-voltage power line carrier communication, in particular to a reliable networking method for low-voltage power line carrier communication considering the communication performance of equipment. Background technique [0002] Power line carrier communication technology is a means to use the existing low-voltage power grid as a transmission medium to realize data transmission and information exchange. With its advantages of low construction cost and wide coverage, it is widely used in services such as remote meter reading and reporting of abnormal electricity consumption. However, the use of shared power lines as the communication medium determines that low-voltage power line carrier communication is easily affected by the power network environment, resulting in a high bit error rate in system communication, which restricts the improvement of the success rat...

AI Technical Summary

Problems solved by technology

However, the use of shared power lines as the communication medium determines that low-voltage power line carrier communication is easily affected by the power network environment, resulting in a high bit error rate in system communication, which restricts the improvement of the success rate of information transmission.

[0003] In the current research on low-voltage power line carrier communication networking, the difference between the performance of carrier communication equipment has not been analyzed

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