The invention discloses a three-dimensional
laser scanning device with adjustable visual field and area resolution. The three-dimensional
laser scanning device comprises a two-dimensional
laser scanner, a
scanner fixing bracket, a U-shaped rotating frame, a sliding block, an L-shaped bracket, a
piston rod, a hinge, a motor and a motor rotating arm. The two-dimensional laser
scanner is mounted on the scanner fixing bracket and the U-shaped rotating frame. The bottom of the scanner fixing bracket is connected with a rotating shaft of the motor through the
piston rod, and the hinge and the motor rotating arm, so that an included angle is formed by a
scanning plane and the horizontal plane of the two-dimensional laser scanner, and the two-dimensional laser scanner linearly rotates around the rotating shaft of the motor under the drive of the motor. With the adoption of the manner, the maximum value and the minimum value of the scanning resolution cannot be limited within a certain area at a position in the view field. The resolutions of a horizontal component and a vertical component in the view field are adjusted simultaneously by adjusting a rotating speed of an additional motor. Furthermore, even if the motor rotates at a
constant speed without controlling the rotating speed of the motor, the view
field angle and the resolution are adjusted by adjusting the height of the sliding block.