The working principle of lidar is very similar to radar. The pulsed laser light emitted by the laser is incident on the ground from the air, hitting the trees, on the road, on the bridge, on the house, causing scattering. A portion of the light will be reflected back to the receiver of the lidar. The receiver is usually a photomultiplier tube or a photodiode that converts the optical signal into an electrical signal that is recorded. At the same time, the distance of the lidar to the target is calculated by the timer equipped to record the time when the same pulsed light signal is transmitted to be received.

The laser radar can measure up to 10,000 Hz, the farthest measurement range is 200m, IP65 protection grade, can be used obstacle avoiding robot and other fields.