Space Laboratory Data Management System, Network Communication Protocols

The main work of this dissertation studied some key technologies for SpaceLaboratory, under the background of the item of "863-704 subject"—Research ofSpace Laboratory's Key Technologies and Simulation for Advanced Orbiting Systems(AOS). In detailed as follows:1, Analysis the features and the service types for international space station and our country Space Laboratory's data management system. Study the schedule adopted by our Space Laboratory according to international Advanced Orbiting Systems(AOS).2, Study how to use the present resource and circumstance,simplify the protocol of TCP/IP so as to improve the efficiency of the network transmission. By referring Virtual Interface Architecture (VIA) technology and analyzing the transmission process of TCP/IP, analysis Real-time operating system VxWorks' supporting network architecture, under Windows2000 and VxWorks, the methods which realize the real-time network communication for SADMS is proposed. By computer simulation, the efficiency of this method is excelled than that of TCP/IP under the same condition during the transmission process.3, Study the Realization of Internet Service in the data management system of Space Laboratory (SADMS), In this paper by analyzing the space network architecture and their complex circumstance, a possible scheme of realizing Internet Service is proposed under the present resource between the space and the ground. By computer simulation, it can accommodate the requirements of AOS, and offers flexible Internet services for consumer in the space.4, Construct the computer simulation environment to validate the methods mentioned above. By analysis and discussed the results, It shows that these methods are feasible. In addition, these simulation results had been passed through CA(check and accept) of the expert group for 863.