Study On Low Voltage Power Line Carrier Communication Routing Method

Low voltage power line communication has a bright future as it takes the power line as transmission medium. But in the present application, the problem of short communication distance and unstable communication quality hasn?t been solved. Then the networking method of low voltage power line communication system has become a hot issue, which can expand communication range and improve communication effect.In this paper, through the review of the background and access relevant information, a new dynamic networking method was given, which was combined with the characteristics of the low voltage power line communication system. The primary contents are as follows:(1) On the analysis of features and physical structure of low voltage power line communication system, the network structure and network requirements was researched. The overall network scheme was given.(2) The initial process was researched seriously. The working process of the communication terminal and upper computer was designed. The initial process was finished by way of clustering. According to the cluster structure built, the maintenance and reconstruction of the network was studied. And the process of network initial and network reconstruction process simulation and analysis. According to the simulation result of the network initial process and the network maintenance process, the method given in this paper is not only can get the information of all the communication terminals, but also can maintenance and reconstruct the network.(3) In the research process of the network optimization process, Dijstra algorithm and particle swarm algorithm were studied seriously. In the paper, Dijstra and particle swarm algorithm were improved to seek the optimize route between the concentrator and all the communication terminals. The simulation result of the two algorithms showed the effect of the particle swarm algorithm used in the network optimization is better than the Dijstra algorithm.(4) The communication terminal was designed in this paper. According the network method given in this paper, the work flow of the communication terminals and the upper computer were designed. Then the network method was tested using the actual system. According to the test results, the method given in this paper was feasible and improved the communication effect of the low voltage power line communication system.