Patent ID: 7079234
Filing Date: 2006-07-18
Classification: G01C,G01S

Abstract:
1. A method for determining the spatial location and position of a reflector rod provided with a reflector and positioned at a measuring or support point located at the target position, the method comprising: using a light or sighting beam emitted to the reflector from a light source of a base station, wherein the reflector and a first position sensor linked by a firm relationship define a first coordinate system, wherein the direction of the light beam to the reflector is measured from the base station in a second coordinate system, using both the horizontal and vertical angles of the sighting axis of the base station emitting the light beam and the distance from the base station to the reflector, and wherein the location and orientation of the reflector rod are established with a second position sensor, which is arranged in the direction of the sighting axis of the base station and whose spatial location and position in the second coordinate system is known; generating measurement data in the first coordinate system for determining the spatial orientation of the reflector and, with it, that of the reflector rod in relation to the light beam emitted from the base station, using the first position sensor; imaging of the reflector rod together with the reflector through imaging optics of the base station on the second position sensor arranged on the base station; determining the location and position of the reflector in the second coordinate system from the horizontal and vertical angles measured and the distance from the base station to the reflector; determining the rotation parameters of the spatial orientation of the first coordinate system in relation to the second coordinate system, using the measurement data generated by the first and second position sensors; determining the location and position of the measuring or support point in the second coordinate system, using the location and position of the reflector and the rotation parameters of the spatial orientation of the first coordinate system in relation to the second coordinate system.