US 12,030,188 B2
Collaborative robot system
Ichiro Kanno, Yamanashi (JP)
Assigned to FANUC CORPORATION, Yamanashi (JP)
Filed by FANUC CORPORATION, Yamanashi (JP)
Filed on Apr. 9, 2020, as Appl. No. 16/844,529.
Claims priority of application No. 2019-102181 (JP), filed on May 31, 2019.
Prior Publication US 2020/0376664 A1, Dec. 3, 2020
Int. Cl. B25J 9/16 (2006.01); B25J 11/00 (2006.01)
CPC B25J 9/1666 (2013.01) [B25J 11/005 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A collaborative robot system, comprising:
a robot adapted to share tasks with a worker, wherein the worker is assigned a first plurality of tasks at first locations on a workpiece and the robot is assigned a second plurality of tasks at second locations on the workpiece, the first plurality of tasks and the second plurality of tasks being performed in parallel on the workpiece;
a display; and
a controller connected to the robot and to the display, wherein the controller assigns the first plurality of tasks to the worker and the second plurality of tasks to the robot, wherein the controller controls the robot according to instructions stored in a memory, and wherein the controller, during each cycle of a plurality of cycles,
a first total work time for the worker to complete the first plurality of tasks,
measures a second total work time for the robot to complete the second plurality of tasks,
predicts a first difference between the first total work time and the second total work time when a number of the first locations is increased or decreased by comparison with a preceding cycle,
predicts a second difference between the first total work time and the second total work time when the number of the first locations is maintained by comparison with the preceding cycle,
increases or decreases the number of the first locations so that the first difference is made to be smaller than the second difference; and
via the display, displays to the worker, the first locations after the number of the first locations is increased or decreased.