Accurate positioning system for a vehicle and its...

Details Accurate positioning system for a vehicle and its... Accurate positioning system for a vehicle and its...

2007-01-11

2010-11-09

Mancho, Ronnie (Department: 3664)

Data processing: vehicles, navigation, and relative location

Navigation

Employing position determining equipment

C701S217000, C342S457000

Reexamination Certificate

active

07831388

ABSTRACT:
An accurate positioning system installed in a vehicle is disclosed to include a GPS, a Gyro sensor, a vehicle speedometer, and a controller. When the GPS outputs a next GPS coordinates, the controller calculates a next reference coordinates subject to the azimuth signal outputted from the Gyro sensor and the vehicle speed signal outputted from the vehicle speedometer and calculates the distance between the next GPS coordinates and the next reference coordinates, and then assigns the GPS coordinates to be the next accurate coordinates for output when the distance between the next GPS coordinates and the next reference coordinates surpasses a reference distance, or assigns the next reference coordinates to be the next accurate coordinates for output when the distance between the next GPS coordinates and the next reference coordinates is smaller than or equal to the reference distance.

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patent: 2006/0212194 (2006-09-01), Breed
patent: 2007/0262881 (2007-11-01), Taylor

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