Research On Routing Algorithm And Realization On Devices Of Wireless Mesh Network

In view of the shortcomings of traditional wireless cellular network and wireless LAN applications,a wireless mesh network known as a wireless version of the Internet appeared,which is the fusion of mobile ad hoc networks and wireless LANs.It has the characteristics of self-organization?multi-hop routing and self-healing and self-configuration.It has the advantages of simple networking,low deployment cost and strong reliability.It is a new high-capacity ? high-speed multipoint-to-multipoint wireless network.it has a broad application prospects and outstanding research value.Based on the research of wireless mesh network routing protocol,this paper designs Wireless Mesh network based on AODV routing protocol to realize video surveillance system.Each node in the wireless mesh network has the forwarding function and the network structure changes frequently,As one of the key technologies of the network,the routing technology provides a high quality and high reliability transmission path for nodes in a wireless Mesh network with multi-hop characteristics,which is of vital importance to the normal operation of the network.In the research of routing protocol,First of all,the basic structure of wireless mesh network and the difference with other types of networks are introduced briefly.Then,the classification of wireless mesh network routing is introduced.According to project requirements,the requirements of wireless mesh network routing protocol are proposed;By comparing several common routing protocols and analyzing their networking processes and characteristics,it provides theoretical guidance for the implementation of routing protocolsIn the design of video monitoring system based on wireless mesh network the system is based on the mesh network as the transmission medium,in the form of remote video surveillance,the users in the remote PC-side login dedicated monitoring platform to view the node video mode,analyzing the network effect.We select the S5PV210 evaluation board for the system node hardware platform,install the Linux system for the operation of the node and transplant drivers for the camera and the network card peripherals in the node.In the protocol implementation,Based on the AODV routing protocol,through the analysis of AODV-UU source code and the realization process,combined with specific demands,the AODV-UU source code is modified accordingly,and the kernel is configured and transplanted to the evaluation board used in the system.Then we test the protocol to verify the operation of the agreement,in single-hop test and multi-hop test mode,checking AODV routing protocol work.Finally it is to carry out on-site implementation,deploying the equipment in a certain situation,login on to the monitoring platform,geting the monitoring data and analyzing the results.Through the test and analysis of the entire system running,Wireless Mesh network based on AODV routing protocol meets the needs of video surveillance system.