The SWCL(Static Weighted Centroid Localization) based on RSSI is widely used

owing to it's low cost

convenience and no need of additional equipment.However

as the RSSI ranging is vulnerable to various interference

the SWCL cannot figure out both the average errors and the max errors simultaneously.Thus

a new dynamic weighting centroid algorithm using Gaussian fitting method is proposed

and the algorithm is performed on the ZigBee platform

The experimental results indicated that the accuracy of RSSI positioning can be well improved

and the positioning average error is only one-third

and the maxium error is quarter of SWCL level.