The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 28, 2022
Filed:
Dec. 19, 2019
Uti Limited Partnership, Calgary, CA;
UTI Limited Partnership, Calgary, CA;
Abstract
Systems and methods for use in aiding an inertial navigation system during a GNSS signal outage. An ultrasonic transceiver is positioned adjacent a wheel of a vehicle and reflections of the emitted signal are used to determine changes of direction and/or to determine a distance traveled by the vehicle. For changes of direction, the transceiver is adjacent to a front wheel such that left or right turns cause the wheel to interrupt a signal path from the transceiver to a reflector. For distance estimates, the transceiver is adjacent a back wheel of the vehicle. The ultrasonic signal is reflected off of solid sections of the wheel or passes through void sections of the wheel. The measurements obtained can be processed in various ways to estimate number of rotations of the wheel and, accordingly, the distance traveled by the vehicle.