Locating Nodes Three-Dimensional Deployment in Emergency Salvage

It is critical to acquire the precise position of staff while salvage.Wireless sensor network works does well on that,and deploying sensing nodes is a fundamental issue.For sake of full-coverage and fluently transmitting position-message,a strategy is proposed which guarantees connectivity,seamless coverage and nodes-number optimizing.Having established the regular architectural model with rectangular coordinate system,research has been expanded to 3-dimensional scenario from 2-dimension.Strip-based deployment method is adopted at projective plane where anchor nodes are laid,the other two projective planes are also under consideration.At last,2-connectivity and full-coverage has been achieved.In the end, an index assessing coverage is devised and put in use.As a result,strip-based deployment method is superior to other common ones.