The invention discloses an aerial
robot capable of avoiding obstacles automatically, bending vertically and cleaning tree obstacles and an
obstacle avoidance method. The aerial
robot comprise a multi-rotor platform providing a flight power for the
robot, a robot body arranged below the platform and fixedly connected to the platform, a middle arm in parallel with the
vertical axis of the robot bodyand fixedly connected to the front end of the robot body, a rear arm in parallel with the
vertical axis of the robot body and fixedly connected to the rear end of the robot body, a front arm connected with the middle arm via a vertical
bending joint with a driving motor, a cutter
assembly fixedly connected to the front end of the front arm, a
battery pack fixedly connected to the rear end of therear arm, a
laser radar mounted in the upper center of the platform, and a height measuring
radar arranged in the bottom of the robot body; and cameras are arranged in the front and two lateral sidesof the platform as well as the rear side of the
battery pack respectively. Obstacles are monitored in real time, high-precision
obstacle avoidance control of the aerial robot is helped, and the robotwith the cutter work arm capable of bending vertically is suitable for cleaning obstacles in areas with dense tree obstacles.