Transmission of Power Line On-Line Monitoring Data Based on Long-Chain Tree-Like Wireless Sensor Network
Yonghua Yu · Power System Technology · 2011
To solve the funnel effect near the Sink nodes in long-chain tree-like ZigBee wireless sensor network(WSN) used for transmission line monitoring and warning system,a multi Sink cooperation mechanism based on geographical position is proposed,and the network bottleneck problem is solved by cooperation transmission of Sink nodes in multi adjacently deployed networks;on this basis,to solve the problems of intense competition of channels being contained within nodes and long time-delay of data transmission brought by raising the transmitting power of sensor nodes,a method of adjusting channel to control the node degree is adopted.Analysis and experiment simulation for the proposed method are performed,and the results show that the proposed method possesses favorable real-time performance and can solve the funnel effect due to Sink nodes well.