An in-orbit combined use method of star sensor and gyroscope suitable for Mars exploration
A technology of Mars detector and star sensor, applied in the direction of integrated navigator, etc., can solve the problems of large communication delay, insufficient real-time performance, and long distance between equipment and ground, so as to improve use efficiency, increase reliability, and ensure continuity Effect
Active Publication Date: 2022-04-19
SHANGHAI AEROSPACE CONTROL TECH INST
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, for the Mars probe, it has the characteristics of long distance between the device and the ground and large communication delay. Simply learning from the star sensor processing method of the earth satellite has the characteristics of insufficient real-time performance. In order to improve the high-precision attitude measurement of the Mars ring probe Reliability, it is necessary to independently perform fault diagnosis, reconstruction, and power-off and restart operations on the star sensor
[0004] In addition, considering that the star sensor can eliminate most of the faults by powering off and restarting, and as the distance between the deep space exploration mission and the earth is getting farther and farther, there is currently no combination of a star sensor and a gyroscope suitable for Mars exploration. Strategy
Method used
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
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0026] The present invention will be further elaborated below in conjunction with embodiment.
[0027] The invention provides a combined use method of a star sensor and a gyroscope suitable for Mars exploration, so that the Mars probe can independently switch between the star sensor systems at all stages of the flight, and the star sensor system and the gyroscope system switch. According to the different flight modes of the Mars rover, the self-determined current shot uses star sensor output data or gyro integral attitude. Compared with the existing technology, the beneficial effect is: a combined use strategy of star sensors and gyroscopes suitable for Mars exploration, enabling Mars probes to realize self-diagnosis, reconstruction and power-off restart of star sensors in orbit , improving the reliability of high-precision attitude measurement.
[0028] Such as figure 1 As shown, the combined use method of star sensor and gyroscope in orbit mainly includes the following st...
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 PUM
Login to View More Abstract
The invention relates to an in-orbit combined use method of a star sensor and a gyroscope suitable for Mars exploration, and relates to the field of use of a star sensor and a gyroscope in a Mars probe; by sequentially performing fault diagnosis on four star sensors with different priorities, judging Do you need to use the gyroscope to output the attitude of the Mars rover; when using the gyroscope to output the attitude of the Mars rover, restart the four star sensors in real time according to the priority to realize troubleshooting; when there are star sensors for troubleshooting When the star sensor is switched to the attitude of the Mars probe output by the star sensor in real time; after the star sensor is confirmed to have no faults, the attitude of the Mars probe output by the gyroscope is maintained; The sensor can be independently diagnosed and reconfigured, and has the ability to automatically restart after all failures. When no star sensor is available, it can automatically switch the gyro integral to provide high-precision attitude information.
Description
technical field [0001] The invention belongs to the field of use of a star sensor and a gyroscope of a Mars probe, and relates to an on-orbit combined use method of a star sensor and a gyroscope suitable for Mars exploration. Background technique [0002] During the whole process of flight, the Mars rover needs to perform attitude measurement to control the set mission. [0003] There is no experience in Mars exploration in China, and the earth satellite is easy to operate on the ground. However, for the Mars probe, it has the characteristics of long distance between the device and the ground and large communication delay. Simply learning from the star sensor processing method of the earth satellite has the characteristics of insufficient real-time performance. In order to improve the high-precision attitude measurement of the Mars ring probe Reliability requires independent fault diagnosis, reconstruction, and power-off and restart operations on the star sensor. [0004] ...
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 Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/24
CPCG01C21/24
Inventor 朱庆华肖东东操宏磊张超顾玥左乐
Owner SHANGHAI AEROSPACE CONTROL TECH INST