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

A device 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, characterized in that it includes a transducer (6) mechanically connected to the sensor (5) so that the relative positions and orientations of the sensor and the transducer are fixable, and that the transducer is arranged to determine its orientation and position with respect to at least four degrees of freedom relative to the environment (1) 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, with respect to at least four degrees of freedom of the sensor, relative to the environment, for at least one said recording or measuring accomplished by the sensor (5), and in that the device is designed to emit the recording or measuring information and the orientation and position information, said recording or measuring information and said orientation and position information defining at least one property of the environment.