Automatic control method and system for seed supply mechanism of transverse sugarcane planter

The invention provides an automatic control method and system for a seed supply mechanism of a transverse sugarcane planter, and belongs to the field of agricultural machinery automation, and the method comprises the following steps: using a sensor to detect and judge the sugarcane amount and the conveying state of a sugarcane collecting box, and timely controlling the motion states of a hydraulic cylinder and a hydraulic motor to change the seed supply amount of a seed supply box; therefore, the seed quantity balance of the sugarcane collecting box is ensured, and ordered seeding is achieved. However, if it is detected that the seed quantity of the seed supply box needs to be adjusted in the seed supply process, the hydraulic lifting device is controlled in time to act, so that sufficient sugarcane quantity storage is kept in the box, and continuous seed supply work of the hydraulic lifting device to the sugarcane collection box is better guaranteed. Particularly, when the quantity of the sugarcane in the se