US 12,085,939 B2
System and method of operating automated guided vehicle
Kyung Dong Park, Hwaseong-si (KR); and Sang Won Yoon, Suwon-si (KR)
Assigned to Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed on Dec. 1, 2021, as Appl. No. 17/539,475.
Claims priority of application No. 10-2020-0175974 (KR), filed on Dec. 16, 2020.
Prior Publication US 2022/0187831 A1, Jun. 16, 2022
Int. Cl. G05D 1/00 (2024.01); B62D 65/02 (2006.01); G05B 19/418 (2006.01)
CPC G05D 1/0212 (2013.01) [B62D 65/022 (2013.01); G05B 19/41895 (2013.01); G05B 2219/1128 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A system for operating an automated guided vehicle (AGV), the system comprising:
the AGV configured to be loaded with a component and to transfer the component along a set travelling path;
a Programmable Logic Controller (PLC) which controls each of at least one or more automation facilities provided in a process line and at each of a plurality of nodes provided on the travelling path; and
an operation server which is configured to control an operation of the AGV and each automation facility through the PLC, and to control each of the at least one or more automation facilities for each of sections between the nodes by collecting PLC memory data from the PLC and inquiring the PLC memory data based on a movement position of the AGV when the travelling path is set,
wherein the PLC includes a PLC memory controller in which a conditional statement-based program for controlling an operation of each automation facility is loaded and which stores log information according to an operation state and an operation history of each automation facility in a PLC memory, and
wherein the PLC memory controller is configured to recognize the operation state of each automation facility and the movement position of the AGV, and to control an operation or a stop of each automation facility according to whether a condition set in the PLC memory is satisfied.