METHOD AND SYSTEM FOR TRANSMITTING MULTIPLEXING DATA OVER DISTRIBUTED PHOTOVOLTAIC POWER CHANNELS

Abstract A method and system for transmitting multiplexing data over distributed photovoltaic power channels, which uses a network selection algorithm based on expert decisions to determine the initial communication mechanism of the power grid communication station in the current cycle, and then based on the degree of time variation of the power line carrier communication channel in the previous cycle and the measurement data of the digital communication bandwidth of the wireless communication channel and power line carrier communication in the current cycle to further determine the communication mechanism of the power grid communication station in the current cycle, and achieve the switch of network between the power line carrier communication and the wireless communication. According to the characteristics of different services, and expert decisions in multiple fields, select suitable decision criteria of attributes that leads to the equilibrium of comprehensive coordination of the communication network, reduction in the number of switching times and possibility of switching failure, and improvement in compatibility and security of the communication network. Abstract Step 1, for each measurement interval, collect measurement data of digital communication bandwidth of the wireless communication channel and the power line carrier communication channel Step 2, collect measurement data of digital communication bandwidth of the wireless communication channel and the power line carrier communication channel at the initial moment of the current cycle, and use the network selection algorithm based on expert decisions to determine the initial communication mechanism of the power grid communication station in the current cycle Step 3, calculate the degree of time variation of the power line carrier communication channel in the previous cycle Step 4, according to the degree of time variation of the power line carrier communication channel in the previous cycle and the initial communication mechanism of the power grid communication station in the current cycle, collect measurement data of the digital communication bandwidth of the wireless channel and the power line carrier channel in the current cycle, and use the network selection algorithm based on expert decisions to determine the communication mechanism of the power grid communication station in the current cycle Step 5, choose and switch between the wireless communication channel and the power line carrier com