M28E robotic lawnmower is a planned borderless intelligent lawn mower robot, which is applied to the automatic lawn maintenance of the manor yard with a lawn area of 5000 square meters or less. M28E intelligent lawn mower by GNSS difference technology realize cm-level outdoor precise positioning, GNSS/INS data fusion technology for lawn mower attitude information, through the collision sensors to realize intelligent perception of the working environment, have a certain environmental self-learning and adaptive ability, truly autonomous navigation intelligent mowing the lawn, the efficiency of 300m²/h