US 12,138,791 B2
Robot control system, lower-level control apparatus, and control method for robot
Nobuhiro Karito, Kiso-machi (JP)
Assigned to SEIKO EPSON CORPORATION, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Apr. 12, 2022, as Appl. No. 17/718,354.
Claims priority of application No. 2021-068185 (JP), filed on Apr. 14, 2021.
Prior Publication US 2022/0331951 A1, Oct. 20, 2022
Int. Cl. G06F 17/00 (2019.01); B25J 9/16 (2006.01); G05B 19/4155 (2006.01)
CPC B25J 9/161 (2013.01) [G05B 19/4155 (2013.01); G05B 2219/50391 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A robot control system comprising:
a robot having a servo control unit;
a lower-level control apparatus transmitting a control command to the servo control unit and receiving robot status information representing a status of the robot from the servo control unit with respect to a preset control period; and
an upper-level control apparatus transmitting command information for creation of the control command to the lower-level control apparatus, wherein
the lower-level control apparatus transmits the robot status information to the upper-level control apparatus in synchronization with the control period, and
the upper-level control apparatus transmits the command information to the lower-level control apparatus within a predetermined transmission time shorter than the control period from a time when receiving the robot status information from the lower-level control apparatus.