What does 'feedback control' do in robotic systems?

Feedback control in robotic systems is crucial for ensuring that the robot operates effectively and accurately. This concept involves continuously monitoring the robot's current state or performance and making necessary adjustments based on this information.

When a robot performs tasks, it collects data regarding its position, speed, and other operational parameters. This data is then compared to the desired target values. If there is a discrepancy—meaning the robot is not where it is supposed to be or not performing as intended—the feedback control system uses this information to alter the robot’s actions. For instance, if a robot's arm is slightly off from its intended path during a pick-and-place operation, the feedback control system can adjust the motors to correct the position in real time.

This ability to adapt and respond to changes in the robot’s environment and operational conditions is vital for maintaining accuracy, enhancing efficiency, and ensuring the safe operation of robotic systems.