Improving location algorithm with LANDMARC system

This paper briefly introduced some common indoor positioning technologies and analyzed the LANDMARC system which is based on RSSI and its algorithm. On the basis of it, we proposed a triangle region positioning method which can eliminate the bad influence on the positioning precision produced by the long-range reference labels and effectively reduces the amount of computation when there are a large number of readers. The simulation results obtained with MATLAB and their analysis show preliminarily that the algorithm proposed in this paper gives higher precision.