System-level emergency response device of spacecraft

Abstract

The invention discloses a system-level emergency response device of a spacecraft. Through adoption of a micro technology and micro devices and components, platform design and emergency mechanism design of the spacecraft are coordinated from a top layer of a spacecraft system; main emergency response functions are implemented in an emergency response device; and the platform design only considers the conventional redundancy measures, thereby reducing the coupling degree and the complexity of each spacecraft subsystem due to consideration of emergency design. The emergency response device of the spacecraft achieves an independent power supply function, a spacecraft state monitoring function and a data recording function and is not coupled with an energy subsystem, a measurement and control subsystem, a satellite service subsystem, an attitude and orbit control subsystem and the like of the spacecraft platform; when the subsystems meet emergencies in orbit, the emergency response device of the spacecraft can independently achieve a satellite-ground communication function, a low-precision attitude measurement function and the like, can provide spacecraft state monitoring data and historical spacecraft state data for the ground to eliminate failures; and the emergency response device of the spacecraft is small in volume, low in mass loss (lower than 10kg) and independent and controlled in functions.

Description

technical field [0001] The invention relates to a spacecraft emergency response device, in particular to a spacecraft system-level emergency response device, which belongs to the field of aerospace technology. Background technique [0002] At present, space missions at home and abroad are basically unmaintainable in orbit, and various redundant means are designed to ensure the success of the mission. Even so, various failures often occur in orbiting spacecraft, resulting in the failure of spacecraft missions. The design of spacecraft emergency mechanism is a key issue that must be considered in spacecraft system engineering, including the countermeasures after on-orbit failures of key subsystems such as spacecraft energy, measurement and control, star affairs, and attitude and orbit control. In addition to conventional redundant backup methods, spacecraft generally adopt more complex heterogeneous degraded backup methods to deal with emergency situations. The current emergen...

AI Technical Summary

Problems solved by technology

In recent years, after some spacecraft in-orbit problems, defects in the design of the spacecraft emergency response mechanism have been exposed. Some extreme situations have not been fully considered, and the emergency response requirements of spacecraft cannot be met. For example, the lack of telemetry data before and after the failure is accurate problem location, the lack of spacecraft deorbiting means after serious failures, etc.

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