Discontinuous cylindrical self-driving automobile laser radar galvanometer and rotating mechanism thereof

The utility model belongs to the field of laser scanning, and particularly relates to a discontinuous cylindrical self-driving automobile laser radar galvanometer and a rotating mechanism thereof, which comprise a plurality of reflection unit groups which are sequentially arranged at equal intervals from top to bottom, each reflection unit group comprises m reflection units which are uniformly and annularly distributed and form a cylindrical mirror surface ring, m is a natural number greater than 1, the position of one reflection unit in the galvanometer is set as a laser irradiation position, and when the galvanometer rotates 360 degrees/m, or when the galvanometer rotates 360 degrees/m while moving up or down for h relative to the laser, the laser irradiation position is set as the laser irradiation position. And when the next reflection unit arrives at the laser irradiation position, the normal vector of the reflection unit located at the laser irradiation position is set as an irradiation normal vector, a