Patent ID: 7792607
Filing Date: 2010-09-07
Classification: A01B,G01C,G01S,G05D

Abstract:
1. A method for guiding a vehicle, the method comprising: collecting location data for the vehicle based on a location-determining receiver associated with the vehicle; collecting vision data for the vehicle based on a vision module associated with the vehicle; estimating location quality data for the location data during an evaluation time window based on a signal strength of each signal component received by the location-determining receiver; estimating vision quality data for the vision data during the evaluation time window based on illumination present during the evaluation time window; and selecting, by a data processor, a mixing ratio based on the location quality data and the vision quality data for the following equation: y=α×y vision +(1−α)×y gps , where y is the aggregate error control signal, α is the mixing ratio, y vision is the vision error signal and y gps is the location data error signal.