Automatic control system of crane

The invention discloses an automatic control system of a crane, relates to the technical field of cranes, and solves the problem that the hoisting speed of the crane is adaptively adjusted without considering whether cargoes are bound to reach the standard or not in the hoisting process and the swinging condition of the cargoes in the transportation process. The power parameter and the rope speed parameter of the rope in the climbing process are analyzed, the change curves of the power parameter and the rope speed parameter along with the time line are determined, and the two change curves are combined and analyzed to determine whether the rope speed of the rope is correspondingly influenced in the climbing process or not and determine whether the transmission mechanism of the rope has corresponding friction or not. According to the control system, the lifting safety in the lifting process is guaranteed, the comprehensiveness of the control system in the control process is improved, whether speed adjustment n