Device for assisting in the navigation of an aircraft in an airport zone

A device for assisting in navigation of an aircraft in an airport zone comprising a surface navigation system embedded in the aircraft and means of acquiring in real time, while navigating on the ground or in flight, new information or temporary information relating to the navigation in said airport zone, said surface navigation system adapted to use information relating to the navigation in said airport zone, said information previously stored in a database on board of said aircraft, said surface navigation system also comprising an obstacle database and a relief and obstacle detection system, comprising:

• filtering means for selecting the new or temporary information relating to the navigation in the airport zone concerning ground obstacles,
• means for creating obstacles associated with said information, and for determining positions of said obstacles,
• means for adding said obstacles to the obstacle database, in order to be taken into account by the relief and obstacle detection system,
• means of displaying said obstacles, and
• means for generating an alarm if the aircraft approaches too close to one of the obstacles defined in the obstacle database.