Device and a method for producing information about the properties of an environment

摘要

A device ( 4 ) for producing information concerning one or more properties of an environment ( 1 ), comprising a sensor ( 5 ) movable in relation to the environment, for obtaining information from the environment by recording or measuring one or more properties of the environment in one or more positions and/or directions, and a transducer ( 6 ) mechanically connected to the sensor ( 5 ) so that the relative positions and orientations of the sensor and the transducer are fixable. The transducer ( 6 ) is arranged to determine its orientation and position with respect to at least four degrees of freedom relative to the environment by receiving incident signals from signal sources ( 7 ) in the environment and thereby produce corresponding information concerning the orientation and the position of the sensor, for at least one said recording or measuring accomplished by the sensor ( 5 ).