Research On Location Algorithm And Location Mechanism Of Mobile Node In Mine Roadway Wireless Sensor

Wireless sensor networks are mainly used for environmental monitoring and target tracking.For the mine tunnel,because the wireless sensor network is easily affected by coal dust,gas,etc.,the performance of the node is degraded and the positioning accuracy is inaccurate.Therefore,this paper proposes a routing protocol to improve the life cycle of the network based on the deployment of nodes in the wireless sensor network in mine tunnels.Under the premise of improved routing mechanism,an improved three-dimensional DV-HOP algorithm is proposed to realize the mine roadway.The node with mobility in it to achieve accurate positioning.(1)To solve the problem that the life cycle of the wireless sensor network is reduced due to the lack of node energy in the wireless sensor network.In this paper,an improved DEEC protocol is proposed to realize the energy balance of the nodes in the mine tunnel.First,common nodes in different regions are elected,and the weight coefficient of the distance between the ordinary node residual energy and the ordinary node to the Sink node is determined to determine the node.As the probability of becoming a cluster head node,cluster nodes are formed by common nodes and cluster head nodes in the cluster head region.Cluster head nodes are determined by selecting the thresholds of the cluster head nodes,and ordinary nodes in this cluster area are transferred to cluster heads for data information.In this way,the common node transfers data information to the cluster head under the cluster area,and reduces the impact of energy consumption on the entire network lifetime.(2)Aiming at the positioning error caused by the misalignment of hops and hops in the wireless sensor network in the mine tunnel environment.This paper proposes an improved DV-HOP algorithm to relocate the distance between anchor nodes,correct the minimum number of hops of the anchor node to the anchor node,and realize the research of mobile node location.Firstly,the average distance from the nearest anchor node to the positioning node is re-evaluated by the actual distance between the anchor node and the anchor node and the average distance between the anchor node and the product of the minimum hop number.The corrected anchor node is averaged.The hop distance is used to find the minimum hop number of the theoretical anchor node,and the minimum hop number of the node to be positioned is corrected by the correction coefficient of the ratio between the theoretical minimum hop count and the actual minimum hop count,and finally the anchor of the node tobe located is obtained.The distance between nodes,and using the maximum likelihood estimation method to calculate the location of the node to be located.In summary,this article is mainly based on the mine roadway,through the improved DEEC routing protocol to extend the life cycle of the mine roadway,and at the same time to achieve the positioning of the mobile node in the mine roadway through the improved three-dimensional DV-HOP algorithm..The experimental results show that the improved DEEC protocol improves the life cycle of the wireless sensor network in the mine roadway;the improved three-dimensional DV-HOP algorithm improves the positioning accuracy of mobile nodes in the mine roadway.