Joint calibration device and method for multiple laser radars

The invention relates to a joint calibration device and method for multiple laser radars. The invention discloses a joint calibration method for multiple laser radars, and the method comprises the following steps: 1, carrying out the scanning through a plurality of laser radars, and obtaining initial point cloud data; step 2, based on the spatial positions of the plurality of laser radars, uniformly converting the initial point cloud data of the plurality of laser radars to a main coordinate system; 3, dividing the point cloud data of each laser radar into a non-overlapping area and a plurality of overlapping areas based on the overlapping of the fields of view of the plurality of laser radars; 4, directly selecting the point cloud data in each non-overlapping region as final data of the region in the main coordinate system; and 5, carrying out superposition processing on the point cloud data in each overlapped region. The beneficial effect of the invention is that the calibration precision is high. And the c