Device for and method of updating a cutout of a total representation of a three-dimensional structure

The method involves updating a section (6.1) of an overall representation of a three-dimensional structure (6) by deploying a remote controlled helicopter (1) above the section of the structure and making a recording of the section of the structure with a recording device (2) mounted on the helicopter, whereby the recording is integrated into the overall representation by a computerized method. An Independent claim is also included for the following a device for updating a section of an overall representation of a three-dimensional structure.