METHOD AND APPARATUS FOR PERFORMING WI-FI SIGNAL CALIBRATION TO IMPROVE INDOOR POSITIONING ACCURACY

摘要

The present invention relates to an apparatus for performing WiFi signal calibration, comprising: an infrastructure information collection unit for receiving wireless signals of a plurality of terminals through a sensor for collecting infrastructure information; A position measuring unit for measuring a collecting position, a moving distance and an attitude information of the apparatus; A signal corrector for analyzing a collection pattern of a signal collected from each terminal according to a characteristic of a signal collected through each sensing unit and performing modeling; And a control unit for controlling the flow of signals between the infrastructure information collecting unit, the position measuring unit and the signal corrector, wherein the signal corrector determines a first signal intensity model function according to a distance between the target terminal and the access point A second modeling unit for calculating a second signal intensity model function based on the distance between the reference terminal and the access point among the plurality of terminals based on the first signal intensity model function, A calibration modeling unit for calculating a log function calibration model for the reference terminal based on the correlation between the first signal strength model function and the second signal strength model function, And a correction unit for correcting the correction value.