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Star sensor software online fault monitoring system and monitoring method thereof

A star sensor and fault monitoring technology, which is applied in the field of star sensor software online fault monitoring system, can solve problems such as software restoration to normal, and achieve the effect of improving design reliability and avoiding data read and write conflicts

Active Publication Date: 2017-07-07
SHANGHAI AEROSPACE CONTROL TECH INST
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] However, in actual situations, many problems can only be reproduced by running the software uninterruptedly for a long time under a certain working condition, and the software will return to normal after power off and restarting.

Method used

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  • Star sensor software online fault monitoring system and monitoring method thereof
  • Star sensor software online fault monitoring system and monitoring method thereof
  • Star sensor software online fault monitoring system and monitoring method thereof

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Embodiment Construction

[0035] based on the following Figure 1 ~ Figure 3 , specifically explain the preferred embodiment of the present invention.

[0036] Such as figure 1 As shown, the present invention provides a kind of online fault monitoring system of star sensor software, comprising: CPU module 1, FPGA module 2 and ground receiving equipment 3, FPGA module 2 connects CPU module 1 by data bus and address bus, and connects by interface Ground receiving equipment 3. The CPU module 1 writes the key data of the star sensor software that needs to be transmitted into the FPGA module 2 through the data bus and the address bus by means of address mapping, and the FPGA detects that the level state of the handshake signal sent by the CPU module 1 changes. Finally, the key data of the star sensor software is sent to the ground receiving device 3, and the ground receiving device 3 analyzes and displays the running status of the star sensor software in real time, and monitors software failures online. ...

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Abstract

The invention discloses a star sensor software online fault monitoring system and a monitoring method thereof. The method comprises the following steps of: writing to-be-transmitted star sensor software key data into an FPGA module by a CPU module by utilizing an address mapping manner; after the FPGA module detects that the electric level state of a handshake signal sent by the CPU module changes, sending the star sensor software key data to ground reception equipment by the FPGA module; and analyzing and displaying star sensor software operation condition by the ground reception equipment in real time, and monitoring software faults online. According to the Star sensor software online fault monitoring system and monitoring method thereof, real-time online monitoring is carried out on star sensor software, the fault problems in the software operation process can be timely positioned, so that the visibility of the star sensor software faults is increased and the troubleshooting efficiency of the star sensor software faults is improved.

Description

technical field [0001] The invention relates to a star sensor software online fault monitoring system and a monitoring method thereof. Background technique [0002] Satellite attitude measurement is the basis of satellite attitude control. The star sensor is a high-precision attitude sensor with stars as the observation target. It is a completely independent and autonomous attitude measurement instrument. It does not need to be combined with other attitude sensors. It can realize the capture and tracking of the satellite's three-axis attitude, Rapid attitude determination and orbital maneuvering. The star sensor takes the precisely positioned star system in the celestial sphere as an absolute reference system, and obtains the attitude of the satellite through the observation, identification, and calculation of the stars. Due to the advantages of high measurement accuracy, strong real-time performance, small size, and low power consumption, star sensors have been widely use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/36G01C25/00
CPCG01C25/00G06F11/364
Inventor 周琦周宇余路伟吴永康金荷
Owner SHANGHAI AEROSPACE CONTROL TECH INST
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