Stereoscopic vision based active grating projection sensor system

The utility model relates to an active grating projection sensor system. The active grating projection sensor system comprises a projection unit, an acquisition unit and a vehicle-mounted computer unit, wherein the projection unit comprises a light source, a grating, a projection objective and a light collecting lens, the front side of the light source is provided with the grating, and the front side and the rear side of the grating are respectively provided with the projection objective and the light collecting lens; the acquisition unit comprises two CCD (Charge Coupled Device), the CCD are positioned at both sides of the projection unit and symmetrically arranged and obtain the image information of a measured object through the acquisition unit, and the acquisition unit is connected with the vehicle-mounted computer unit. Compared with the prior art, the utility model has the advantages of fast and accurately detecting the direction and the size of an obstacle and providing accurate obstacle avoidance info