Patent ID: 9632169
Date: 2017-04-25
CPC Classifications: G01C,G01S

Claim:
1. A method for collecting data for calibrating an indoor positioning system that uses Wi-Fi signatures, the method comprising: tracking motion of a mobile device between known locations within a structure using inertial navigation; collecting a plurality of Wi-Fi signatures with the mobile device while tracking the motion of the mobile device between the known locations within the structure; matching each of the plurality of Wi-Fi signatures to a point between the known locations within the structure, the matched Wi-Fi signatures for use in comparing to Wi-Fi signatures being received by the indoor positioning system to identify an indoor location of the mobile device within the structure, wherein the matching comprises fitting a b-spline to a path generated based on tracking motion of the mobile device using inertial navigation; displaying an image of the b-spline with control points to a display; adjusting positions of one or more of the control points; and changing locations associated with Wi-Fi signatures associated with the one or more control points to reflect the positions after adjustment.