Patent ID: 8687612

Claim:
A system for IP communication between a first fixed piece of computing equipment located on the ground and connected to a first local network and a second mobile piece of computing equipment located on board one vehicle of a plurality of vehicles, each vehicle of the plurality of vehicles having a second local network, the second piece of equipment being connected to the second local network of the one vehicle on which the second piece of computing equipment is located, the system comprising: a global tree network including: a main router connected to the first local network; lower-level nodes formed by a plurality of mobile routers, each vehicle of the plurality of vehicles having one mobile router of the plurality of mobile routers, the one mobile router being connected to the second local network of the one vehicle; and intermediate nodes, the intermediate nodes being located above the lower-level nodes, the intermediate nodes including base routers, the base routers being located on the ground; at least one communication infrastructure, each base router being connected to one of the at least one communication infrastructures and having an IP address on the one of the at least one communication infrastructures with which it is associated, each of the at least one communication infrastructures including base stations equipped with base station radio communication devices, wherein each mobile router includes: a mobile router radio communication device for establishing, at a given moment, a wireless link with one of the base stations of the at least one communication infrastructures, a mobile router storage device having a list of each base router which includes the IP addresses of each base router with the associated communication infrastructures of which the mobile router radio communication device is able to establish the wireless link, and a mobile router connection device for initiating a connection with one of the base routers from the list of each base router, after the wireless link has been established, wherein the main routers, the base routers and the mobile routers respectively include a main routing table, a base routing table and a mobile routing table and a main updating device, a base updating device and a mobile updating device for dynamically updating the main, base and mobile routing tables, each base router having a base transmitting device for transmitting a connection status message to the main router, informing the main router about the mobile routers which have just connected to or disconnected from the relevant base router, and wherein the base routers include a base router storage device comprising a list of new base routers, wherein the mobile router updating device updates the list of base routers based on the list of new base routers in the base router to which the mobile router connects.