1results about How to "Switch in real time" patented technology

A fault-tolerant satellite attitude control method based on magnetic torquers is proposed. First, in each control cycle, magnetic torquer and thruster fault detection is performed based on the control signal of the previous cycle and the attitude measurement signal of the current cycle, according to the control measurement consistency score. When a thruster fault is detected or a thruster fault signal is received, the backup thruster is switched if a backup exists. When a thruster fault is detected or a thruster fault signal is received and no backup is available, the attitude control mode is switched to pure magnetic torquer control. When a magnetic torquer fault is detected or a magnetic torquer fault signal is received from other methods or injected from the ground, the faulty magnetic torquer is removed, a backup magnetic torquer is introduced, and the magnetic torquer group configuration is reconstructed for magnetic torquer allocation calculation.