Patent ID: 11904915
Assignee: DAIFUKU CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC B  H | IPC B  H

Claim 0:
1. An article transport facility, comprising:
an article transport vehicle that travels along a traveling path, thereby transporting an article; and
wherein:
the article transport vehicle is provided with an obstacle sensor that detects an obstacle that exists in a detection area set according to the shape of a planned traveling locus on the front side of the article transport vehicle, and a control unit that controls the traveling speed of the article transport vehicle based on detection information of the obstacle sensor,
a non-detection area where detection of the obstacle by the obstacle sensor is not performed is set in an area within the detectable area of the obstacle sensor and outside the planned traveling locus,
a situation in which the non-detection area exists on a detection line that joins a part of the detection area and the obstacle sensor because the detection area is curved is defined as a specific situation, and
the control unit, in a state where the article transport vehicle is traveling at the first traveling speed, in the specific situation, and a situation where an undetectable area in which it is not possible to detect the obstacle exists in the detection area because a shield exists in the non-detection area, reduces the speed of the article transport vehicle to a second traveling speed slower than the first traveling speed.