| 摘要 |
A method and a system are described for determining location information of at least one moving sensor node adapted for communicating with a wireless network of fixed coordinating nodes. The method comprises the steps of : providing an area or a volume associated with at least three coordinating nodes in communication with said sensor node, said area or volume being divided into an array of cells having a predetermined pitch; generating a transformation table by associating the coordinates of each of said cells with distances between said cell and each of said coordinating nodes; receiving in response to a first location request said sensor node first distances between said sensor node moving in said area or volume and said coordinating nodes, said first location request being sent at a first point in time; and, transforming said first distances into first coordinates using said transformation table. |
