Patent ID: 9609615
Date: 2017-03-28
CPC Classifications: G01S,H04W

Claim:
1. A method for building a database for fingerprinting positioning, comprising: generating, by a database building device, raw data by collecting received signal strengths (RSSs) for access points (APs) at each sample point (SP); generating a cluster table by clustering SPs for each of the APs according to the RSS for the AP, using the generated raw data; and building, by the database building device, a radio map by deleting data of which RSS measurement rates are equal to or less than a predetermined reference value, from the generated raw data, wherein: the generating of the cluster table comprises: in the generating of the raw data, the database building device generates the raw data by repetitively measuring the RSSs for the respective APs at each SP; and in the calculating of the initial center value based on the difference between the maximum value and the minimum value of the RSS and the number of clusters, the database building device calculates the center value of an m-th cluster by the following equation: where R