Design And Implementation Of FC-AE-155 Bus Network Interconnection System Based On Rockets

With the development of modern science and technology, military equipment have put forward higher requirements for data traffic and real-time performance,The launch Vehicle Control System is used to control the flight status of rockets.In actual flight, the rocket will be subject to all kinds of interference from the rocket itself and the external,The various units system require significant exchange of information between the various units system.Traditional bus transport has been unable to meet the demand.The Fibre Channel bus have the features of the unified data communication between networking and I/O access, low cost, easy low-level control, high transmission rate, and strong anti-interference ability and other characteristics.In this paper, a model rocket distributed control system for the background,the project design and implement a interconnected network system based on the fiber-optic switches of the FC-AE-1553 protocol.This paper presents a hybrid topology of optical switches for data exchange based on DSP.Firstly,gives the implementation of hybrid network topology according to the users’ needs and the FC-AE-1553 agreement,determines the hardware and software implementation of the switch.With a ring processing queue structure to achieve the message pushing process,impletes the messages pushing handle and speeds up the interrupt response time.The terminal registration mechanism include thebfabric switch registration and the N port registration.The data exchanging mechanisms uses the hash_chain to manage the routing table.By inserting the status_property and age_property in the routing record, the switch eliminates the hash_address conflict and constantly updates the routing records automatically.To avoid the broadcast storms of the hybrid network, this paper uses the network_topology_discovery_algorithm based on the spanning_tree protocol for the network to achieve the network management and the oops’ eliminating.In order to accelerate the development and debugging of the network interconnection system,this project designs and implements the network simulation platform,which would provides the emulation and debugging ability of the program for the switch and the terminal.Finally, the design of the system simulation and physical verification experiments, focusing on the STP Spanning Tree Protocol, exchange structure registration, N-port register several data exchange process validated and analyzed.Experimental results show that the paper design of fiber optic network- III-interconnection system can effectively blocking loop to achieve tree topology discovery; registration and N-port switch fabric can operate properly registered; routing table can effectively learn and update routing information and data exchange can be realized data. The results showed that the basic functions of network interconnection system designed this project to be realized.