Light Detection and Ranging or LIDAR is a remote sensing method that uses light in the form of a pulsed laser to measure distance. LIDAR sensors provide navigation and localization for autonomous ground robots.
Mount beacons on walls or ceilings to measure distance to other beacons and “hedgehog” using ultrasonic pulses. They communicate with router wirelessly in ISM band. Powered by LiPo battery or USB. The beacon has a built in Inertial Measurement Unit (IMU).