Patent ID: 8196461

Claim:
A method for checking the referencing of at least two measuring heads of a contactless vehicle-chassis measuring system, comprising: detecting two geometry details of a vehicle using the measuring heads; for each detected geometry detail, determining an initial position of the geometry detail in a local coordinate system associated with the respective measuring head; transforming the initial positions of the geometry details in the local coordinate systems into a shared coordinate system; executing a relative movement between the measuring heads and the vehicle while keeping the relative positions of the measuring heads with respect to one another constant; detecting again the two geometry details of the vehicle using the two measuring heads; for each detected geometry detail, determining a final position of the geometry detail in the local coordinate system associated with the respective measuring head; transforming the final positions of the geometry details in the local coordinate systems into the shared coordinate system; determining, for each measuring head, a respective movement vector based on a difference between the final position and the initial position of the respective geometry detail in the shared coordinate system; and checking the movement vector for the first measuring head for coincidence with the movement vector for the second measuring head.