Radar-based household appliance working space target positioning method and household appliance system

The invention belongs to the field of household appliance control, particularly provides a radar-based household appliance working space target positioning method and a household appliance system, and aims to solve the problem of positioning personnel in a household appliance working space by using an independently mounted radar. In order to achieve the purpose, the method comprises the steps that a first space rectangular coordinate system and a second space rectangular coordinate system with the center positions of the household appliance and the radar as reference points are established respectively; obtaining coordinates of the target in the second space rectangular coordinate system through a radar; and converting the coordinates of the target in the second space rectangular coordinate system into the coordinates in the first space rectangular coordinate system according to the coordinate transformation matrix to obtain the position of the target in the home appliance working space. By applying the metho