Lifting device and method based on unmanned travelling crane

The invention provides a lifting device and method based on an unmanned travelling crane. The lifting device based on the unmanned travelling crane comprises a lifting hook and a steel cable, the lifting hook comprises a first part, a second part and a third part, the steel cable is connected with the first part, the third part is arranged on the lower side of the first part, the second part is arranged up and down, and the second part is used for connecting the first part and the third part; the lifting device comprises a first imaging unit used for forming a top view image of a to-be-lifted object , a second image unit used for forming a side image of the to-be-lifted object, a judgment device which judges whether the to-be-lifted object in the top view image meets the requirement in the horizontal direction or not, and judges whether the to-be-lifted object in the side image meets the requirement in the vertical direction or not according to an image recognition technology, and a detection unit which is ar