Research On The Space Area Coverage And Shape Control For Airborne Sensor Networks

With the development and innovation of communication technology and smart device technology,the Internet of Thing(IOT)provides more and more convenient conditions for people’s lives.As the basic technology of the Internet of Things,Wireless Sensor Networks(WSN)have also made considerable progress.WSN is Ad Hoc composed of a large number of lightweight and low-cost micro-sensor nodes.A WSN is an Ad Hoc of a large number of lightweight,low-cost micro-sensor nodes.In the field of WSN,node deployment tasks are a key issue that determines the quality of the entire infinite sensor network.In the field of wireless sensor networks,node deployment task is a key issue,which determines the quality of the WSN.With the advancement of sensor technology,the sensor has evolved from a stationary node to a mobile node,which provides a new research direction and solution for the deployment of WSN.However,most of the research on deployment is concentrated in the case of two-dimensional,and research on three-dimensional WSN(3DWSN)is very rare.The research on the deployment of 3DWSN has great value and significance for the application of 3DWSN.With the development of technologies such as drones,3DWSN have become possible,which makes 3DWSN become the focus of research.This thesis mainly studies the key technologies of node deployment in three-dimensional wireless sensor networks.This thesis introduces the network architecture,channel characteristics and energy constraints of wireless sensor networks,systematically analyses the difficulties and challenges faced by node deployment in three-dimensional wireless sensor networks,and proposes a node deployment scheme based on Voronoi diagram method and virtual force method.Compared with other algorithms,the coverage of our method is increased by 8%.At the same time,the characteristics of omni-directional and directional sensing nodes,isomorphic networks and heterogeneous networks are analyzed,and the deployment strategies for different types of nodes and networks are proposed.For omni-directional heterogeneous networks,the coverage of our method is increased by 6% to 16% compared with other methods.For directional heterogeneous networks,our algorithm is compared with other algorithms.The coverage rate increased by 10% to 13%.In some complex deployment environments,different regions need to monitor different data.This thesis builds small structures in different regions to monitor different targets or data.Through experimental comparison,our small structure method can effectively reduce deployment time while ensuring coverage,and can reduce deployment time to 1/3 of the original.Finally,this thesis conducts simulation deployment experiments on 3DWSN to verify the effectiveness of the deployment strategy.These researches and practices have certain reference and guiding significance for node deployment of 3DWSN.