US 12,169,257 B2
Industrial vehicle distance and range measurement device calibration
Sebastian Theos, Vaterstetten (DE)
Assigned to Crown Equipment Corporation, New Bremen, OH (US)
Filed by Crown Equipment Corporation, New Bremen, OH (US)
Filed on Sep. 29, 2023, as Appl. No. 18/477,986.
Application 18/477,986 is a continuation of application No. 17/238,353, filed on Apr. 23, 2021, granted, now 11,802,948.
Claims priority of provisional application 63/014,839, filed on Apr. 24, 2020.
Prior Publication US 2024/0019560 A1, Jan. 18, 2024
Int. Cl. G01S 17/06 (2006.01); G01S 7/497 (2006.01); G01S 17/931 (2020.01)
CPC G01S 7/4972 (2013.01) [G01S 17/06 (2013.01); G01S 17/931 (2020.01)] 17 Claims
OG exemplary drawing
 
1. A process for calibrating a distance and range measurement device coupled to an industrial vehicle, the process comprising:
taking a first measurement of an emission from the distance and range measurement device at a first yaw angle relative to a roll axis of the distance and range measurement device;
taking a second measurement of the emission from the distance and range measurement device at a second yaw angle relative to the roll axis;
determining, using a processor, that a roll angle of the distance and range measurement device is correct when a difference between the first measurement and the second measurement is within a roll tolerance;
determining that the roll angle of the distance and range measurement device is incorrect when a difference between the first measurement and the second measurement is not within the roll tolerance;
determining an adjustment direction based on the first measurement and the second measurement;
displaying, on a display device of the industrial vehicle, an indication of the adjustment direction;
receiving an indication that an adjustment of the distance and range measurement device has been made;
taking a new first measurement of the emission from the distance and range measurement device at a new first yaw angle relative to the roll axis of the distance and range measurement device;
taking a new second measurement of the emission from the distance and range measurement device at a new second yaw angle relative to the roll axis; and
determining, using the processor, that the roll angle of the distance and range measurement device is correct when a difference between the new first measurement and the new second measurement is within the roll tolerance.