AN APPROACH TO FAULT TOLERANCE OF SPACE VEHICLES ON THE BASIS OF AUTOMATED DESIGN OF ONBOARD INTELLIGENT SOFTWARE 

Tyugashev Andrey Aleksandrovich, doctor of technical sciences, associate professor, professor, acting head of sub-department of applied mathematics and informatics and information systems, Samara State Transport University (443066, 2V Svobody street, Samara, Russia), tau797@mail.ru

629.7

10.21685/2307-4205-2016-4-15

Background. The problem of dependability remains one of the most important in modern space missions. The onboard autonomous control software plays a key role in Fault Tolerance.
Materials and methods. In contrast to rigid method when control logic is to be implemented in program source code, we utilize onboard intelligent real-time interpreter of rules. Rules for autonomous control in contingencies can be operatively uploaded and updated from the Earth by radio. The main idea of the proposed method is integration of onboard intelligent software with the power of visual representation.
Results. The Visual Domain Specific Language for ergonomic representation of the rules of onboard intelligent autonomous control programs has been designed. The easy-to-understand form allows reducing influence of human factor. The non-programmer can specify and refine rules using specially developed Toolset. Future works include development of rules verification tool and automated documentation generation tool.
Conclusions. The ergonomic representation of the rules allows decreasing of misunderstanding in project team and reducing the number of inaccuracies and errors. Eventually, one can improve the dependability of Space Missions.

information and control complex, a landspace information network, efficiency of information interchange, inter-satellite radio, repeaters