US 12,286,304 B2
Method of controlling transport vehicle in production factory, vehicle control device, and article transport system
Jae Hyoung Cho, Cheonan-si (KR)
Assigned to SEMES CO., LTD., Cheonan-si (KR)
Filed by SEMES CO., LTD., Cheonan-si (KR)
Filed on Sep. 21, 2021, as Appl. No. 17/481,271.
Claims priority of application No. 10-2020-0121957 (KR), filed on Sep. 22, 2020.
Prior Publication US 2022/0089375 A1, Mar. 24, 2022
Int. Cl. B65G 17/12 (2006.01); B61B 3/02 (2006.01); B65G 43/10 (2006.01); H01L 21/677 (2006.01)
CPC B65G 17/12 (2013.01) [B65G 43/10 (2013.01); H01L 21/67724 (2013.01); B61B 3/02 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A method of controlling a transport vehicle in an article transport system in a production factory, the method comprising:
checking tasks for transporting articles;
searching for routes for the respective tasks for a plurality of transport vehicles;
calculating expected power consumption for the respective tasks of the transport vehicles; and
assigning the tasks to the transport vehicles based on the expected power consumption for the respective tasks and remaining power of the transport vehicles,
wherein the assigning of the tasks to the transport vehicles comprises:
calculating cost values of the transport vehicles for the respective tasks based on ratios between the expected power consumption for the respective tasks and the remaining power of the transport vehicles; and
assigning the tasks to the transport vehicles based on the cost values of the transport vehicles for the respective tasks, and
wherein the cost values are assigned in accordance with a range in which values made by dividing the remaining power of the transport vehicles by the expected power consumption for the respective tasks are present.