ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,419, issued on Oct. 28, was assigned to Daifuku Co. Ltd. (Osaka, Japan).
"Article transport facility" was invented by Hiroshi Otsuka (Hinocho, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A determination section determines that a transport vehicle entered a curved zone from a straight zone based on a front-rear rotation speed difference between the rotation speed of a first rear wheel and a second rear wheel and the rotation speed of at least either a first or second front wheel. A measurement section measures a distance-to-curve, which is the distance that the transport vehicle travels from when a detector detects a detection target until w...