公开(公告)号：US20210323164A1

公开(公告)日：2021-10-21

申请号：US16851946

申请日：2020-04-17

Applicant: ABB Schweiz AG

Inventor： Biao Zhang ,  Jianjun Wang ,  Yixin Liu ,  Saumya Sharma ,  Jorge Vidal-Ribas ,  Jordi Artigas ,  Ramon Casanelles

IPC: B25J9/16 ,  B25J13/08

Abstract: A system and method that automatically resolves conflicts among sensor information in a sensor fusion robot system. Such methods can accommodate converging ambiguous and divergent sensor information in a manner that can allow continued, and relatively accurate, robotic operations. The processes can include handling sensor conflict via sensor prioritization, including, but not limited, prioritization based on the particular stage or segment of the assembly operation when the conflict occurs, overriding sensor data that exceeds a threshold value, and/or prioritization based on evaluations of recent sensor performance, predictions, system configuration, and/or historical information. The processes can include responding to sensor conflicts through comparisons of the accuracy of workpiece location predictions from different sensors during different assembly stages in connection with arriving at a determination of which sensor(s) is providing accurate and reliable predictions.