An anti-jamming and fault-tolerant control method for a Mars lander

A fault-tolerant control and lander technology, applied in attitude control, non-electric variable control, control/regulation systems, etc., can solve the problems of lander influence, reduced Mars lander accuracy, and insufficient anti-interference ability of the lander, to eliminate Error, Noise Immunity, and Reliability Improvements
CN105629987BActive Publication Date: 2017-07-18BEIHANG UNIV
4 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIHANG UNIV
Publication Date
2017-07-18

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The present invention relates to an anti-interference fault-tolerant control method of a Mars lander. Firstly, building the attitude kinematics and the dynamics model of the Mars lander; secondly, designing a wind interference estimator to estimate the gust influence on the Mars lander aiming at the influence of the gust at the powered lowering stage at the surface of the Mars so as to perform compensation through a feedforward channel; thirdly, designing an execution mechanism partial failure observer to estimate and compensate the partial failure value of the Mars lander execution mechanism; and finally, recombining the gust interference estimator, the execution mechanism partial failure observer and a PD attitude controller, and constructing a fault tolerance controller of partial failure of the Mars lander execution mechanism. The anti-interference fault-tolerant control method of Mars lander has high anti-interference ability and high reliability, and has a higher practical engineering value compared with a traditional Mars lander control method.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to an anti-jamming and fault-tolerant control method for a Mars lander. Aiming at the partial failure of the executive mechanism in the control system of the Mars lander under the influence of a gust of wind, the idea of ​​anti-jamming and fault-tolerant control is adopted, which improves the efficiency compared with the traditional controller. The reliability of the control system enhances the engineering application value. Background technique

[0002] Since humans started space exploration, the exploration of Mars has never stopped. With the goal of finding the second earth where life inhabits, human beings have carried out a series of missions such as orbiting observation, close observation, and landing sampling on Mars, trying to find signs of life on Mars. Finally, in September 2015, NASA found evidence of the possibility of water on Mars, which also marked another historic moment for the Mars mission. As the Mars mission ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More