The Design Of Satellite ACS Software Architecture And Key Component Based On Software Bus

With the development of modern small satellite technology, the shorterdevelopment cycle, low-cost, high reliability has been the development trends ofsmall satellite. The consolidation of the engineering research into software andhard-ware reuse has recently penetrated the space bussiness, software reusetechnology applied in satellite can be summarized as software reuse andhardware reuse, including framework and architecture etc. In the process of on-board software design, the design of reusable software architecture is the keytechnology of software reuse applying in satellite. The key technology ofhardware reuse is to design a reusable electronic equipment frame system. Mymain work is listed as follows:1. Study on the attitude and orbit control system: Make an analysis oftraditional attitude and orbit control software development process, designmethods and hierarchical architecture; Introducing satellite attitude and orbitcontrol system structural units(including hardware and software level); Making astudy on the functional model of the satellite attitude and orbit control systemsoftware and data flow.2. Study on the software architecture based on software bus: Proposing andestablishing the the model of satellite attitude and orbit control softwarearchitecture based on software bus; Developing the communication mechanismof the components on the software bus; Proposing software bus and componentcommunication data structure; Developing a software bus mechanisms.3. Simulation of satellite attitude and orbit control software architectureprogram based on the software bus: Satellite attitude and orbit control systemsoftware architecture simulation model based on software bus is first established.Then make component simulation of the four modules of attitude measurementmodule, attitude determination module, attitude control modules andimplementation modules. Then make a simulation of component interactivingwith the software bus for data. Finally, simulation study and analysis ofsimulation results to verify the reusability of softwarebus based satellite attitudeand orbit control system software architecture.