CRS CRS Human-Robot Collaboration & Ergonomics 1 — Questions and Answers
Question 1: What is a collaborative robot (cobot) specifically designed to do?
- Replace human workers entirely in all tasks
- Work safely alongside humans without traditional safety barriers (Correct answer)
- Operate at higher speeds than standard industrial robots
- Perform only welding and cutting tasks
Correct answer: Work safely alongside humans without traditional safety barriers
Collaborative robots are designed to work safely in shared workspaces with humans without requiring traditional hard guarding or safety fences, enabling direct human-robot teamwork.
Question 2: Which ISO technical specification specifically governs safety requirements for collaborative robot systems?
- ISO 9001
- ISO 10218-1
- ISO/TS 15066 (Correct answer)
- ISO 14001
Correct answer: ISO/TS 15066
ISO/TS 15066 provides specific safety requirements and guidelines for collaborative robot systems, supplementing the robot safety standards ISO 10218-1 and ISO 10218-2.
Question 3: What is 'power and force limiting' (PFL) in collaborative robotics?
- Limiting the robot's maximum payload rating
- A safety mode where the robot stops when contact forces exceed a safe threshold (Correct answer)
- Limiting who can access robot programming
- Controlling the robot's energy consumption
Correct answer: A safety mode where the robot stops when contact forces exceed a safe threshold
Power and force limiting is a collaborative operation mode where the robot continuously monitors contact forces and stops immediately if they exceed safe human pain/injury thresholds.
Question 4: What does 'speed and separation monitoring' (SSM) mean in collaborative robotics?
- Monitoring robot speed against its rated maximum
- Dynamically adjusting robot speed based on measured distance between the robot and humans (Correct answer)
- Measuring human walking speed for scheduling
- Tracking production throughput speed
Correct answer: Dynamically adjusting robot speed based on measured distance between the robot and humans
Speed and separation monitoring dynamically adjusts robot speed based on the real-time measured distance from a human, slowing or stopping as a person approaches the robot.
Question 5: What must be factored into safe stopping distance calculations for a collaborative workspace?
- The robot's color and visibility
- The total distance the robot travels from human detection to full stop (Correct answer)
- A fixed minimum distance of 1 meter
- Half of the robot's maximum reach
Correct answer: The total distance the robot travels from human detection to full stop
The stopping distance is the distance the robot travels from the moment a human is detected until the robot fully stops, and it must be calculated to ensure the human cannot be reached before the robot stops.
Question 6: In human-robot collaboration ergonomics, what is the primary design concern for object handover tasks?
- Maximizing robot handover speed
- Ensuring safe, comfortable transfer without awkward postures or pinch points (Correct answer)
- Selecting the robot's visual color scheme
- Minimizing task cycle time above all else
Correct answer: Ensuring safe, comfortable transfer without awkward postures or pinch points
Handover task design focuses on presenting objects at ergonomically comfortable heights and orientations that prevent awkward postures and eliminate pinch point hazards.
CRS CRS Human-Robot Collaboration & Ergonomics 1
What is a collaborative robot (cobot) specifically designed to do?