Patent AU-2021232743-B2 (AU)
Title: Method and system for transmitting multiplexing data over distributed photovoltaic power channels
Inventor: FANG LEI
IPC: G08C17/02
Filed: 2021-09-15
Granted: 2023-07-13
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 communication channel based on 
the determined communication mechanism of the power grid 
communication station in the current cycle
1/3 
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 communication channel based on 
the determined communication mechanism of the power grid 
communication station in the current cycle 
Figure 1