关键词: 有向异构传感器, 精确部署, 虚拟力, 路径覆盖, 仿真

Abstract: Deployment of wireless sensor network is a main research direction,deployment algorithm directly affect the key performance indicators such as network coverage. Current most algorithms based virtual force method that used to solve the problem of wireless sensor network deployment are based on the homogeneous model of the sensor nodes,which exist more cover loopholes and uneven local deployment for the problem of hetergeneous nodes,especially for the specified path accurate deployment problems,existing algorithms of inadaptability show more outstanding. Propose a Directional and Heterogeneous Precision Self-deployment Algorithm(DHPSA). Deployment process is divided into two stages,firstly nodes choosing the optimal route to the destination path under the action of gravity of neighbor node and specified path,then throuth autonomous rotation and autonomous mobile position fine-tuning to realize accurate coverage of the target path under the action of gravity of neighbor node. The contrast experiment show that the proposed algorithm has more excellent effect such as in coverage rate , overlap rate , deployment time and moving distance.

Key words: directional heterogeneity sensor networks, precision deployment, virtual force, path coverage, simulation