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  • Виртуальное моделирование физических процессов в космической аппаратуре при построении киберфизических систем

Article

Виртуальное моделирование физических процессов в космической аппаратуре при построении киберфизических систем

Кофанов Ю. Н., Сотникова С. Ю.

Cyber-physical systems in this work were considered for the first time to support the reliability of the electronic equipment of a spacecraft during operation in orbit. Considering the requirements for minimizing the mass and dimensions of the spacecraft, it is suggested to relocate the cyber subsystem from spacecraft to the Mission Control Center. An algorithm for the proposed structure functioning of the cyber-physical system is constructed. The novelty of the work is the proposal by the authors beforehand, before launching the spacecraft, to form an exemplary computer virtual model in the Mission Control Center that implements the interconnection of the basic physical processes (electrical, thermal and mechanical) taking place in the electronic equipment.

The virtual model allows taking into account the synergistic strengthening effect from the mutual influence of physical processes on each other. In this case, the error from separate modeling of physical processes disappears. In this paper, the authors give an algorithm for creating a reference virtual model. Telecommands for the correction of the onboard electronic equipment are fed via the radio channel to the actuators built into the equipment, or to the onboard computer, which affects the cyclorama of the equipment operation. A description of the experimental verification of the space cyber-physical system by young specialists, including graduates of the MIEM HSE, which occurred in the rescue of the AngoSat-4 satellite, launched on December 27, 2017.