A patient tracking and positioning system based on improved DV-Hop algorithm

With the development and extensive application of Wireless Sensor Networks(WSN) technology, Wise medical Treatment has entered the ordinary household. A patient positioning System is designed based on WSN in this paper. Distance Vector-Hop (DV-Hop) algorithm is used by through analyzing the system working environment, and some improvement has made on the basis of it's error analysis. There are two improved aspects. The anchor nodes are filtered. A certain weight value is added in coordinate calculation. Finally, the influence factors of positioning accuracy are studied by the simulation.