Improving Safety in Collaborative Robot Tasks

Autor: Santonu Sarkar, Divyasheel Sharma, Raoul Jetley, Mohak Sukhwani, Avijit Mandal
Rok vydání: 2019
Předmět:
Zdroj: INDIN
DOI: 10.1109/indin41052.2019.8972103
Popis: In recent times, there has been significant interest in collaborative robots where the tasks performed by a robot are non-repetitive and complex, and humans and robots share an overlapping workspace. In such a case, the robot controller must necessarily be safety-aware. In this paper, we propose a mechanism to evaluate a robot program and compute a safety score for each action that the robot is about to perform. To this end, we have implemented a code analyzer that examines the robot’s Move instructions and assigns a safety score. A subjective logic based approach is used to compute the safety score for each instruction. We have evaluated the approach through ABB’s RobotStudio® simulator. We simulate two scenarios: First, where two robots share a workspace and second, where a robot moves along a path with an obstacle. The simulations show that using our code analyzer and safety score formalism; it is possible to evaluate the application code for safety and enable avoidance of potentially unsafe behavior.
Databáze: OpenAIRE