Research And Application Of Routing Algorithm Based On ZigBee In Street Lamp Network

With the expansion of city scale in our country,the street lamp system is also growing rapidly.The controlling method for traditional street lamp system cannot satisfy the needs of modern city for the existing questions,such as low efficiency and high cost.Therefore,it is imperative to realize remote management in street lamp sytem based on ZigBee.Although in the street lamp network,flooding algorithm can quickly spread.However,there are too many redundant data contributing to congestion on channels,which makes the deployment of street lamp network limited.Other algorithms have their own problems,such as Cluster-tree algorithm,which assigns nodes' address inflexibly;AODVjr algorithm may have broadcast storm due to RREQ sent for routing discovery.Therefore,this paper proposed a deterministic cloud routing algorithm based on identification to choose an optimized path rapidly.In order to quantitative analyse and research on problems during routing convergence,while some key nodes failure,this paper proposed a high-order description model of message propagation process in ZigBee network.For purpose of reducing the occurrence of key nodes failure,this paper proposed a dual-channel converged communication solution.In the study of these algorithms,models and solution,this paper achieved the following outcomes:(1)It proposed a deterministic cloud routing algorithm based on identification utilizing the server's global knowledge to route packets in street light network effectively,which refers to Cluster-Tree and AODVjr algorithm.(2)Based on analysis of street lamp network with key nodes failure,this paper proposed a high-order description model of message propagation process,which modifies the random sampling model by considering the visited times and the degrees of nodes.The proposed model can avoid the problem of overestimating the number of nodes covered,and achieve the boundary of routing convergence.(3)A multi-channel converged communication method was implemented in the gateway node,which effectively enhanced the transmission bandwidth and transmission stability.This method also can be extended to other areas.Finally,in the actually deployed street lamp network in two towns of Zhangjiagang including more than 1000 nodes,the effects of proposed algorithm,model and method were verified.