Error-Reduced Positioning Algorithm on the Uneven Floor

Conventional 3-dimensional coordinate calculation method required reference nodes at least four. Because of this reason, complexity increased in 3-dimensional coordinate calculation method. In this paper we proposed a new location method in order to solve this kind of problem. The new location method used triangulation method and binary search. Binary search is for enhancing efficiency of iteration. From simulation result, we confirmed that proposed method´s performance is better than conventional method´s performance. Therefore if we use proposed location method in this paper, we can reduce reference node number. And we will reduce the error of coordination value caused by variation of geographical features in conventional system.