MEPX
Chapter 9 of 10All chapters

Chapter 9 of 10

Safety

Machines that can hurt people.

The approach

Traditional industrial robots are fenced, with interlocks that cut power when a gate opens. Collaborative robots limit force and speed and monitor contact so they can share a space.

  • Risk assessment considers the tool and the workpiece, not just the arm.
  • An emergency stop must be reachable, obvious and tested.

Autonomy raises the stakes

A system that decides for itself must fail safely when its assumptions break. Deciding what a robot should do when it is uncertain is a design question, not a coding one.