Invention Grant
- Patent Title: Systems and methods for materials handling vehicle odometry calibration
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Application No.: US16575838Application Date: 2019-09-19
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Publication No.: US11060872B2Publication Date: 2021-07-13
- Inventor: Timothy William Fanselow , Justin Forbes Thode , Ryan Michaels Estep
- Applicant: Crown Equipment Corporation
- Applicant Address: US OH New Bremen
- Assignee: Crown Equipment Corporation
- Current Assignee: Crown Equipment Corporation
- Current Assignee Address: US OH New Bremen
- Agency: Dinsmore & Shohl LLP
- Main IPC: G01C21/20
- IPC: G01C21/20 ; G01C22/02 ; G01C25/00 ; G05D1/02

Abstract:
Systems and methods for calibrating odometry of a materials handling vehicle. One embodiment of a method includes determining a current location of the materials handling vehicle, determining an odometry distance from the current location to a destination based on a calculation of a determined number of rotations of a wheel and a circumference of the wheel, and determining a positioning system distance from the current location to the destination. Some embodiments include comparing the odometry distance with data from the positioning system distance to calculate a scaling factor, applying the scaling factor to a fast alpha filter to achieve a fast filter result, and applying the scaling factor to a slow alpha filter to achieve a slow filter result. Similarly, some embodiments include applying the fast alpha filter to the scaling factor to smooth noise, calculating an updated odometry distance utilizing the scaling factor, and utilizing the updated odometry distance.
Public/Granted literature
- US20200011674A1 SYSTEMS AND METHODS FOR MATERIALS HANDLING VEHICLE ODOMETRY CALIBRATION Public/Granted day:2020-01-09
Information query
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