The invention relates to a multi-line
laser radar calibration
system and a calibration method. The
system is characterized by comprising a horizontal
levelling table, a switching frame, a reflecting target, a
total station, a computer, a
laser ranger and a
GPS antenna; the horizontal
levelling table is arranged on a support frame, a digital display level meter is configured to monitor and judge the
levelling of the horizontal leveling table; the switching frame is a connecting structure connected with the
laser radar in a vertical direction and a horizontal direction, and an
inertia measurement unit IMU is arranged on the switching frame; the reflecting target is arranged at a relative location of the switching frame so as to form a region for constraining a laser beam; the
total station is arranged between the switching frame and the reflecting target to form an elevation measurement structure; the computer is arranged on the support frame, an I / O port thereof is connected with a
signal output end of the digital display level meter, the
signal output end of the laser ranger, the
signal output end of the
total station and the signal output end of the
GPS antenna, thereby forming anautomatic monitoring structure to monitor the laser
reflectivity change and read and
record inertia measurement unit IMU attitude angle. The
system has the characteristics of being high in calibration efficiency, high in calibration precision, low in field requirement, and convenient to execute.