Foundation projection line-drawing device and a line-drawing method for a sports field

Abstract

A line-drawing method for a sports field comprises: the foundation projection line-drawing device obtaining court options input by a user, and obtaining a court size and court shape according to the court options; scanning a pre-projection site to determine the safety of the pre-projection site; if the pre-projection site is safe, using the current pre-projection site as a target projection site, and turning on a laser unit according to the court size and the court shape to form a virtual court, and projecting the virtual court on the target projection site. This method can be used in the field lines of sports ball games. It can frame functional areas, replacing traditional marking lines and rope frame lines. It is more flexible and practical than fixed marking lines. It is strong, and it also solves the disadvantages of the site rope being unsafe, and being blown by the wind.

Dependencies are inferred from the claim text.