Electronic cam curve generation method and system, and abnormal operation adjustment method

The invention relates to an electronic cam curve generation method and system and an abnormal action adjustment method in the technical field of industrial control and automation. The method comprises the following steps that the film length of a packaging film, the non-synchronous area length of an electronic cam and the synchronous area length of the electronic cam are obtained; a speed curve initial model of the electronic cam is established, and the speed curve initial model is a sine function or a cosine function; based on the film length, the non-synchronous area length and the mapping relation between the synchronous area length and the speed curve initial model, a speed curve actual model is obtained; a displacement curve, an acceleration curve, a jerk curve and a run-out curve of the electronic cam are generated based on the actual speed curve model, and the problem that the mechanical stability of the electronic cam curve in the flying shear process of an existing packaging machine is poor is solved