Sz Dji Technology Co., Ltd.

Chenghui Long

Ke Wang

Xiaoping Hong

Yijun Luo

A ranging device includes a transmitter, a scanner including an optical element, and a detector. Working states of the ranging device after power-on include a normal state and a standby state. In the normal state, the transmitter transmits a light pulse sequence, the optical element is kept in a motion state to change the light pulse sequence to different directions to emit at different moments, and the detector receives at least part of reflected light reflected by an object and converts the at least part of the reflected light into an electrical signal, and determines at least one of a distance or an orientation of the object with respect to the ranging device according to the electrical signal. In the normal state, the transmitter suspends transmitting the light pulse sequence and the optical element is kept in the motion state.

Ranging device and mobile platform

Techniques, systems, and devices relating to conducting calibration of LIDAR systems are disclosed. In one exemplary aspect, a light detection and ranging (LIDAR) device is disclosed. The device comprises a light beam emitter operable to emit a light beam; a prism set positioned in an optical path of the light beam to refract the light beam onto a surface of a surrounding object; a light detector to detect light reflected by the surface of the surrounding object; a controller configured to estimate the surface of the surrounding object based on the detected light. The controller is operable to (1) determine a relative bias in the prism set, and (2) cause, based on the relative bias in the prism set, a compensation for an estimation error in the controller's estimation of the surface of the surrounding object.

Growing community of inventors

Shenzhen, China

Chenghui Long