Why Measure Distance?
Proximity sensors are critical for the most basic robotic function: Not bumping into things. Unlike complex vision systems, proximity sensors provide fast, reliable, and computationally cheap distance data, making them the first line of defense in robot safety systems.
Safety First
Simple sensors like ultrasonic and IR perform "reflex" actions—emergency braking when an object is too close, independent of complex AI software.
Precision Control
Laser rangefinders allow for precise tasks like maintaining exact altitude for drones or perfect alignment for charging docks.