Research Of Networking Scheme In Smart Distribution Network Based On Wireless Sensor Network

High-speed,two-way,real-time and reliable communication system is an important prerequisite and guarantee for the development of smart distribution network.Wireless Sensor Network(WSN)has the characteristics of large scale,low cost,low power consumption and high network survivability.It can meet the needs of large-scale and fast networking of smart distribution communication system.Because the sensor nodes in smart distribution network(WSN)have great differences in computing ability,storage space and energy.In order to achieve an efficient and reliable communication,it is more appropriate to use heterogeneous nodes for the smart distribution network.This paper systematically studies the node design method,node deployment method and network routing protocol of heterogeneous distribution network based on WSN.In this paper,compared with isomorphic WSN in communication performance the advantages of heterogeneous WSN are analyzed.The design method of heterogeneous sensor nodes is given according to the structural characteristics of smart distribution network.The simulation calculations verify the advantages of heterogeneous WSN in terms of network survivability and data transmission efficiency.This paper summarizes the applicability of the existing WSN node deployment methods in smart distribution networks.The impact of connectivity environments such as signal shielding and attenuation in smart distribution network is analyzed.And the node deployment method with maximum communication radius is given.In order to satisfy the "N-1" principle of power communication,the method of deploying backup nodes and multipath of relay link is adopted to improve the communication reliability of WSN.Combined with the above two deployment methods,a node connected deployment algorithm is presented based on the connected graph theory.In order to achieve efficient communication of nodes,a partitioned routing protocol is proposed as the routing layer protocol of smart distribution network WSN.A partitioning method of smart distribution network's WSN is given,a data structure model based on partitioned system is established too.And a design method of multi-path partitioned routing protocol is proposed.An smart distribution network WSN model based on OMNeT++ simulation platform was established to simulate the partition routing protocol.Simulation results show that the routing protocol has better network communication performance than the flooding protocol.It can meet the requirements of various communication technical indicators of smart distribution network.