Vision-Based Safety System for Barrierless Human-Robot Collaboration

Fuente: arXiv
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Autori principali: Amaya-Mejía, Lina María, Duque-Suárez, Nicolás, Jaramillo-Ramírez, Daniel, Martinez, Carol
Natura: Preprint
Pubblicazione: 2022
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author Amaya-Mejía, Lina María
Duque-Suárez, Nicolás
Jaramillo-Ramírez, Daniel
Martinez, Carol
author_facet Amaya-Mejía, Lina María
Duque-Suárez, Nicolás
Jaramillo-Ramírez, Daniel
Martinez, Carol
contents Human safety has always been the main priority when working near an industrial robot. With the rise of Human-Robot Collaborative environments, physical barriers to avoiding collisions have been disappearing, increasing the risk of accidents and the need for solutions that ensure a safe Human-Robot Collaboration. This paper proposes a safety system that implements Speed and Separation Monitoring (SSM) type of operation. For this, safety zones are defined in the robot's workspace following current standards for industrial collaborative robots. A deep learning-based computer vision system detects, tracks, and estimates the 3D position of operators close to the robot. The robot control system receives the operator's 3D position and generates 3D representations of them in a simulation environment. Depending on the zone where the closest operator was detected, the robot stops or changes its operating speed. Three different operation modes in which the human and robot interact are presented. Results show that the vision-based system can correctly detect and classify in which safety zone an operator is located and that the different proposed operation modes ensure that the robot's reaction and stop time are within the required time limits to guarantee safety.
format Preprint
id arxiv_https___arxiv_org_abs_2208_02010
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle Vision-Based Safety System for Barrierless Human-Robot Collaboration
Amaya-Mejía, Lina María
Duque-Suárez, Nicolás
Jaramillo-Ramírez, Daniel
Martinez, Carol
Robotics
Computer Vision and Pattern Recognition
Machine Learning
Systems and Control
Human safety has always been the main priority when working near an industrial robot. With the rise of Human-Robot Collaborative environments, physical barriers to avoiding collisions have been disappearing, increasing the risk of accidents and the need for solutions that ensure a safe Human-Robot Collaboration. This paper proposes a safety system that implements Speed and Separation Monitoring (SSM) type of operation. For this, safety zones are defined in the robot's workspace following current standards for industrial collaborative robots. A deep learning-based computer vision system detects, tracks, and estimates the 3D position of operators close to the robot. The robot control system receives the operator's 3D position and generates 3D representations of them in a simulation environment. Depending on the zone where the closest operator was detected, the robot stops or changes its operating speed. Three different operation modes in which the human and robot interact are presented. Results show that the vision-based system can correctly detect and classify in which safety zone an operator is located and that the different proposed operation modes ensure that the robot's reaction and stop time are within the required time limits to guarantee safety.
title Vision-Based Safety System for Barrierless Human-Robot Collaboration
topic Robotics
Computer Vision and Pattern Recognition
Machine Learning
Systems and Control
url https://arxiv.org/abs/2208.02010