Abstract: The invention relates to a reconfiguration process for an aircraft environment surveillance device including at least two redundant electronic systems (2, 2?), where each system includes at least two surveillance sets (4-10, 4?-10?) able to provide information about the aircraft's environment. The inventive method and apparatus includes the following steps and structures: detection of simultaneous unavailability (S1, S4) of at least one surveillance set of the first system (4-10) and of at least one surveillance set of a second system (4?-10?); and, in the case where at least two unavailable sets (4-10, 4?-10?) are not redundant sets, automatic selection (S3, S6) of the information obtained, on the one hand, from the available surveillance sets of the first system (4-10), and, on the other hand, from the redundant surveillance set or sets of the second system (4?-10?) that matches the unavailable surveillance set or sets of the first system (4-10).

Abstract: The invention relates to a reconfiguration process for an aircraft environment surveillance device including at least two redundant electronic systems (2, 2?), where each system includes at least two surveillance sets (4-10, 4?-10?) able to provide information about the aircraft's environment. The inventive method and apparatus includes the following steps and structures: detection of simultaneous unavailability (S1, S4) of at least one surveillance set of the first system (4-10) and of at least one surveillance set of a second system (4?-10?); and, in the case where at least two unavailable sets (4-10, 4?-10?) are not redundant sets, automatic selection (S3, S6) of the information obtained, on the one hand, from the available surveillance sets of the first system (4-10), and, on the other hand, from the redundant surveillance set or sets of the second system (4?-10?) that matches the unavailable surveillance set or sets of the first system (4-10).

Abstract: A method for monitoring the flight of an aircraft using two navigation screens respectively dedicated to a pilot and to a copilot of the aircraft is provided. The method includes displaying on the screens, depending on the choice of the pilot and the copilot, at least information relating to the following of terrain by the aircraft or information relating to meteorological conditions that the aircraft encounters during the flight, triggering at least one warning representative of hazardous meteorological conditions detected by the meteorological radar and liable to be encountered by the aircraft while the navigation screens of the pilot and copilot simultaneously are displaying the terrain-following information, wherein the at least one warning is triggered when the information relating to the hazardous meteorological conditions is located in a predetermined volume relative to the aircraft, and displaying the warning on at least one of the navigation screens.

Abstract: A method for monitoring the flight of an aircraft consisting in triggering a warning representative of hazardous meteorological conditions liable to face the aircraft while the navigation screen is displaying the terrain-following information.

Abstract: Method and apparatus for the self-organization of nodes into groups in network computing environments. Embodiments may provide the ability to deploy nodes on a network, and to allow the nodes to organize into groups without human intervention. In one embodiment, a node may broadcast a query looking for a master node for the group. If the query produces no responses, the node may self-elect as the master node for the group and the node may broadcast its presence as the master node. If two or more nodes self-elect as master nodes, the nodes may negotiate to determine which node will be the master node. If the master node becomes unavailable, the remaining nodes in the group may elect a new master node. Some embodiments may be implemented on a peer-to-peer platform, such as the JXTA peer-to-peer platform, which may allow the scope of the group to span subnetworks and networks.