METHOD AND DEVICE FOR DETERMINING THE POSITION OF AT LEAST ONE POINT OF REFLECTION ON AN OBSTACLE

摘要

The invention relates to a method for determining the position (x, y) of at least one point of reflection (R_1-2) on an obstacle. According to traditional methods of this kind a first distance (r₁) between the point of reflection (R_1-2) and a first position (x₁) of a distance measuring device is calculated by evaluating a time period between the emission of a transmission signal and reception of a reflection signal. In order to state the unsharp position of the point of reflection thereby obtained even more precisely, in addition to the first distance (r₁), a second distance (r₂) of the point of reflection is calculated with respect to a second position (x₂) of the distance measuring device in analogy to the calculation of the first distance (r₁) and then a defined position (x, y) is calculated from the pair of variates (x₁, r₁) (x₂, r₂) so obtained using the triangulation method.