Positioning method based on WIFI position fingerprints and positioning system of robot

The invention discloses a positioning method based on WIFI position fingerprints and a positioning system of a robot. The WIFI position fingerprint-based positioning method comprises the steps of obtaining WIFI position fingerprint data of a to-be-positioned object at each position of a to-be-detected area so as to establish a WIFI position fingerprint database, and classifying the data of the WIFI position fingerprint database by adopting a K-means clustering division method so as to divide the data into K classes; obtaining an RSSI value of each wireless access point received by the to-be-positioned object at the current position, and removing RSSI values of some wireless access points with poor signal intensity from the RSSI values; and calculating the Euclidean distance between the sampling data formed by each residual RSSI value and the K classes, and performing matching positioning in the class with the minimum Euclidean distance value by adopting a weighted K nearest neighbor method so as to obtain a p