Research On Wireless Sensor Network Node Localization And Routing Protocol For Xinjiang Plain Irrigation Area

To improve the utilization rate of land resources and reduce the labor cost has been an eternal theme of agricultural development in Xinjiang.Therefore vigorously promoting wireless sensor network technology in agricultural irrigation area is an important way to speed up the modernization of agriculture in Xinjiang.Wireless sensor network is a new technology that integrates wireless communication technology,sensor technology and embedded technology,this technique uses a large number of sensor nodes scattered in the monitoring area to collect regional data information,and use multi hop routing to transfer the collected data to the sink node,Finally,the converging node transfers data fusion to the user side,so as to achieve the goal of user monitoring the target area.Since the 11 th Five-Year plan,Wireless sensor network technology has been widely applied in the field of agricultural greenhouse monitoring ?forest fire risk monitoring?aquaculture control and other fields in eastern China.However,due to the limitation of geographical environment and outdated hardware facilities,the wireless sensor network technology is still rarely used in Xinjiang agriculture in Xinjiang plain irrigation area.The agricultural land in Xinjiang is still in the stage of extensive use.The utilization rate of land resources is at a stage of irrational use,and the environment of agricultural land has been severely damaged,and agricultural income is still far from the rest of the region.Therefore,the design of a set of high efficiency?low cost?practical Xinjiang plain irrigation monitoring system is beneficial for the sustainable development of the agricultural economy in Xinjiang.The network of Xinjiang plain irrigation area with large network coverage,low anchor node ratio,far distance between nodes and nodes and limited network energy is studied in this paper.And Aiming at the lack of location information and the network lifetime caused by routing protocol defects in Xinjiang plain irrigation area network.In the aspect of node location,In this paper,the problem that the location of three or more than three anchor nodes can not be received in the receiving range of some edge nodes,which leads to the failure of the location of the edge nodes,is considered when the location of the conventional distance measurement algorithm is used in the Xinjiang plain irrigation area network,which leads to the lack of network information.Then the Bounding box location algorithm is used for two points positioning,and an improved Bounding box-my location algorithm is constructed by introducing the already located neighbor nodes,which can reduce the node location error while ensuring the node location rate.Based on the LEACH routing protocol,this paper analyzes the problem that the network node energy is too fast and the network life shortens due to the improper selection process of cluster head,and an improved LEACH-my routing protocol based on location information?node density and energy information is constructed with the improved location algorithm.In this protocol,the location of each unknown node in the network is determined by the Bounding box-my location algorithm,and the cluster head probability is divided through the distance between the unknown nodes and the base station,and then the threshold formula of the cluster head election is modified by introducing the node density factor in each cluster to achieve the purpose of prolonging the network life.On the MATLAB platform,the location algorithm based on RSSI ranging,the Bounding box location algorithm and the Bounding box-my location algorithm are compared in the network with different node density.The results show that the Bounding box-my localization algorithm reduces the node loss rate and improves the node error rate;LEACH and the improved LEACH-my routing protocol are not used.Compared with the scenario,the results show that LEACH-my routing protocol can better balance network energy load and prolong network lifetime.Through the above technology research and experimental verification,the wireless sensor network technology in Xinjiang plain irrigation area has a better practical value,and further promote the development of agricultural economy in Xinjiang.