Method for enhancing in-orbit reliability of moonlet
A reliability and satellite technology, which is applied to the generation of response errors, error detection of redundant data in calculations, and instruments. It can solve problems such as out-of-control of single machine components, poor reliability, and abnormal communication of small satellites, so as to avoid expansion. , improve the effect of reliability and stability
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
specific Embodiment approach 1
[0041] Specific implementation mode 1. Combination Figure 1 to Figure 6 This embodiment is described as a method for enhancing the reliability of small satellites in orbit. In the whole design of small satellites, the communication interface types between the central computer and stand-alone components are usually RS422 serial interfaces and CAN bus interfaces, often with PPS second pulse signals. Time synchronization, and in order to ensure the timely processing of information, the interruption method is used.
[0042] Step 1. After the central computer initiates communication to the stand-alone component as the communication host, the stand-alone component responds to the communication request of the central computer, and the central computer receives data in an interrupt receiving mode;
[0043] Step 2, the central computer executes the interrupt service function,
[0044] Step 21, closing the interrupt and updating the cumulative number of responses;
[0045] Step 22. D...
specific Embodiment approach 2
[0059] Specific embodiment two, combine Figure 2 to Figure 6 Describe this implementation mode, this implementation mode is an embodiment of a method for enhancing the reliability of small satellites in orbit described in the first specific implementation mode: this implementation mode is based on the abnormality of the Jilin No. 1 Video 01 satellite on-orbit fiber optic gyro as an example illustrate:
[0060] 1. RS422 is used between the central computer and the fiber optic gyroscope. In the communication, the host of the central computer initiates communication, and the fiber optic gyroscope responds to the communication request of the host computer as a slave, and adopts the interrupt receiving method. The running cycle of the central computer application program is 200ms, the watchdog feeding cycle is 200ms, the timing cycle is 500ms, the theoretical time for the fiber optic gyroscope to return parameters is 10ms, and the number of theoretical interruptions is 100 times. ...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com