Check patentability & draft patents in minutes with Patsnap Eureka AI!

Parallel-processing dual fault-tolerant on-satellite processing system

A parallel processing and processing system technology, applied in the direction of response error generation, multi-program device, program synchronization, etc., can solve the problems of difficult state between processors, insufficient utilization of synchronization resources, etc., to achieve difficult state synchronization and processing capacity Improve and reduce the effect of system resources

Active Publication Date: 2012-10-03
SPACE STAR TECH CO LTD
View PDF4 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The problem solved by the technology of the present invention is: to overcome the deficiencies of the prior art, to provide a dual-machine fault-tolerant on-board processing system for parallel processing, and to apply the dual-machine hot standby architecture to the microprocessors, which solves the problem that the state between the processors is not easy to synchronize And the problem of insufficient resource utilization when a single processor is used for image processing

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Parallel-processing dual fault-tolerant on-satellite processing system
  • Parallel-processing dual fault-tolerant on-satellite processing system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Such as figure 1 As shown, the present invention includes an image preprocessor 1, a link gate 2, an image detection and recognition device 3, a satellite data manager 4, a clock unit 5, a watchdog 6, a power management 7 and an image processing sample storage area 8.

[0023] Image preprocessor 1 uses two aerospace-grade FPGA XQR2V6000 from Xilinx, which are respectively connected to the on-board camera and link strobe 2. Each preprocessor uses 16 pairs of high-speed LVDS differential pairs to connect to the link strobe , To ensure the 200MB / s data bandwidth between the two; each FPGA preprocesses the original camera image data, preprocessing includes radiation correction and geometric correction, after preprocessing, the first-level image data is sent to the link gate 2;

[0024] The link strobe 2 adopts ACTEL's anti-fuse FPGAA1010A, which connects the IO or external bus of the image preprocessor 1, the image detection and recognizer 3 and the satellite data manager 4, th...

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

No PUM Login to View More

Abstract

A parallel-processing dual fault-tolerant on-satellite processing system comprises an image preprocessor, an image detector and recognizer, a satellite data manager, a clock unit, a watchdog, and a power supply management and image processing sample storage area. The system provided by the invention can ensure the highest processing performance while realizing parallel processing, and a dual fault-tolerant structure is used among microprocessors to ensure the reliability of the entire system. In comparison with the conventional on-satellite single-processor structure, the dual fault-tolerant on-satellite processing system provided by the invention can solve the problem that CPUs (central processing unit) are difficult to synchronize in the state so as to reduce the system resources for keeping the synchronous state of the processor, and can improve the processing performance of the entire system by using the pipeline parallel processing manner.

Description

Technical field [0001] The invention relates to a parallel processing dual-machine fault-tolerant on-board processing system, which is mainly used for high-speed parallel processing of original images of on-board cameras, and uses a dual-machine fault-tolerant structure to ensure the reliability of high-performance processing. Background technique [0002] The on-board computer is the control and management center of the satellite's integrated electronic system. It is responsible for satellite attitude and orbit control, satellite affairs management, and payload data management and processing. It is the center of satellite control and its importance is self-evident. Moreover, the spaceborne system needs to operate reliably for a long time in the harsh space environment, so high reliability design becomes the key to system design. Since the on-board processing system has strict requirements on the reliability of the system, the on-board processing system usually adopts a redundant...

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
no application Login to View More
IPC IPC(8): G06F9/52G06F11/07
Inventor 崔骞朱翔宇沙立伟宋振宇单琦郑宏强
Owner SPACE STAR TECH CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com