The invention relates to a
laser radar road edge sensing system of an intelligent driving electric sweeper, which mainly comprises a selection scheme of the
laser radar, an installation position and angle of the
laser radar, receiving and
processing of asynchronous laser point clouds, establishing and updating of a two-dimensional occupied grid map and segmenting and extracting of road edges, wherein the selection scheme of the laser radar adopts two 16-line laser radar sensors to simultaneously sense a front obstacle and a right side
road edge; the installation position and angle of the laserradar effectively avoid a
perception blind area and realize the robust detection of the
road edge; receiving and
processing of the asynchronous laser point clouds ensures the time approximate synchronization of the two radar point clouds by adopting a
multithreading asynchronous receiving scheme; according to establishing and updating of the two-dimensional occupied grid map,
point cloud information is projected into the grid map by using a
vertical projection and altitude difference filtering method, and the probability of the grid map is updated; according to segmenting and extracting of road edges, sample points of the road edges are sampled in a segmented manner, a road
edge model is estimated through a least square method, and whether the road edges exist or not is distinguished; andthen accurate and robust reference information for tracking control is provided. Compared with the prior art, the laser radar road edge
sensing system of the intelligent driving electric sweeper hasthe advantages of accurate
perception, wide application range and the like.