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Cobot Speed & Separation Monitoring: Ensuring Safe Human-Robot Interaction

A critical safety protocol for collaborative robots in shared workspaces.

mysimulator teamUpdated June 2026≈ 3 min read▶ Open the simulation

What Speed & Separation Monitoring Is

Speed and separation monitoring is a safety protocol designed to prevent accidents between humans and robots sharing the same workspace. It involves continuously measuring the distance (separation) between the human operator and the robot, as well as the speed of both entities. When these parameters fall below predefined thresholds, the robot's motion is slowed or stopped.

This system is particularly important in collaborative robotics (cobots), where robots are designed to work alongside humans without physical barriers.

How It Works

The process begins with sensors that monitor the distance between the human and the robot. As the human approaches, the robot's speed is reduced gradually through a yellow warning zone, where the robot continues to operate but at a much slower pace. If the separation distance further decreases into the red zone, the robot comes to an immediate stop to prevent any potential collision.

The live speed-vs-time graph provides real-time data on how the robot’s speed changes in response to the human's proximity, offering valuable insights for optimizing safety protocols.

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Why It Matters

Implementing speed and separation monitoring is crucial for maintaining a safe working environment. By reducing the risk of accidents, it allows for more efficient use of cobots in manufacturing processes without compromising worker safety.

This protocol also ensures compliance with international standards such as ISO/TS 15066, which provides guidelines for collaborative robot systems.

Real-World Applications

In automotive and electronics manufacturing, cobots are often used to assist human workers in tasks that require precision or repetitive motion. Speed and separation monitoring ensures that these robots can work closely with humans without posing a danger.

The technology is also applicable in healthcare settings where robots might be used for patient care or assistance, further emphasizing the importance of safety measures.

Frequently asked questions

What happens if the human operator enters the red zone?

If the human operator enters the red zone, the robot will come to an immediate stop to prevent any potential collision with the human.

Can speed and separation monitoring be customized for different types of robots?

Yes, the thresholds for distance and speed can be adjusted based on the specific characteristics and capabilities of the robot being used. This allows for tailored safety protocols that are appropriate for various applications.

How does this system handle multiple humans in the workspace?

The system typically monitors the closest human to the robot, but some advanced systems can track multiple humans and adjust the robot's speed or stop it based on the nearest person's proximity.

Is speed and separation monitoring mandatory for all collaborative robots?

While not legally mandated in all regions, adhering to these safety protocols is strongly recommended by industry standards and best practices to ensure a safe working environment.

Try it live

Everything above runs in your browser — open Cobot Speed & Separation Monitoring and change the parameters while it is running. Nothing is installed, nothing is uploaded, the whole model lives in one tab.

▶ Open Cobot Speed & Separation Monitoring simulation

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