Intelligent control system for crawler-type hydraulic excavator to go up and down without crawling ladder plate trailer

The invention provides an intelligent control system for a crawler-type hydraulic excavator to go up and down a ladder-stand-free plate trailer. The intelligent control system is composed of a perception interaction module, a motion planning module and an execution control module. The perception interaction module performs target tracking, edge extraction, distance measurement and safety judgment functions through a collected real-time image sequence; the motion planning module carries out motion matching on the current stage through a plate trailer loading and unloading process algorithm library, and after matching is completed, the displacement of each oil cylinder, the rotation angle of a rotation platform and the rotation speed of a left-right walking motor are calculated; the execution control module adopts a predictive control method, a predictive model converts actual values collected by sensors and a future control sequence solved by a controller into predictive values, the predictive values are compa