US 12,282,333 B2
Systems and methods for calibrating a map of an autonomous robot
Gregory P. Linkowski, Dearborn, MI (US); Meghna Menon, Rochester Hills, MI (US); Shankar Narayan Mohan, Ann Arbor, MI (US); Ling Zhu, Canton, MI (US); and Songan Zhang, Santa Clara, CA (US)
Assigned to Ford Global Technologies, LLC, Dearborn, MI (US)
Filed by Ford Global Technologies, LLC, Dearborn, MI (US)
Filed on Apr. 1, 2022, as Appl. No. 17/711,482.
Prior Publication US 2023/0315120 A1, Oct. 5, 2023
Int. Cl. G05D 1/00 (2024.01); H04B 17/318 (2015.01)
CPC G05D 1/0274 (2013.01) [G05D 1/0212 (2013.01); G05D 1/028 (2013.01); H04B 17/318 (2015.01)] 20 Claims
OG exemplary drawing
 
1. A method for calibrating a map of an autonomous robot, a trajectory of the autonomous robot, or a combination thereof, the method comprising:
obtaining localization data from a localization sensor of the autonomous robot;
determining whether a calibration condition of the autonomous robot is satisfied based on the localization data; and
in response to the calibration condition being satisfied:
determining a master position coordinate of the autonomous robot based on a plurality of radio frequency (RF) signals broadcasted by a plurality of RF tags;
converting the master position coordinate to a local position coordinate of the autonomous robot;
selectively updating the map based on the local position coordinate of the autonomous robot; and
adjusting the trajectory of the autonomous robot based on the updated map.