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A Hierarchical and Hierarchical Spacecraft Single Event Soft Error Protection System

A protection system and single-particle technology, applied in the detection of faulty computer hardware, functional testing, etc., can solve the problems of lack of system-level unified design and comprehensive utilization of information, single-event soft error spacecraft, single-event soft error, etc. , to achieve good overall and local control performance

Active Publication Date: 2017-03-08
BEIJING INST OF SPACECRAFT SYST ENG
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Problems solved by technology

In order to meet the requirements of large-capacity, high-speed, and complex information processing, the information processing units of existing spacecraft need to use a large number of devices such as DSP, FPGA, single-chip microcomputer, processor, I / O, and bus controller. The production level of single-event hardening devices is limited, among which there are many highly sensitive devices for single-event soft errors. Therefore, the uninterrupted and stable service of my country's spacecraft in orbit is facing a severe threat of single-event soft errors. Significant Common Issues in Effectiveness
[0003] At this stage, in response to single-event soft errors, my country's spacecraft have adopted protection measures such as ASIC transfer, timing refresh, and triple-mode redundancy. However, most of the above measures are concentrated at the device and stand-alone level, lacking system-level unified design and comprehensive utilization of information.

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  • A Hierarchical and Hierarchical Spacecraft Single Event Soft Error Protection System

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Embodiment Construction

[0038] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0039] According to the design characteristics of my country's spacecraft, the invention divides the single event soft error protection into four levels, and uniformly designs each level of protection with different means and strategies, forming a hierarchical and layered single event soft error protection system structure. The single event soft error protection classification method is as follows:

[0040] Level 0 (level 0): Device stand-alone level protection.

[0041] Device-level protection implements anti-single event soft error reinforcement from the aspects of materials, processes, components, etc., without hardware circuit or software intervention; stand-alone level protection is realized through the design of hardware circuit or software itself, without the need for ground and spaceborne software to implement single-event soft error. Misinformati...

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Abstract

The invention discloses a spacecraft single particle soft error protection system structure. According to the spacecraft single particle soft error protection system structure, single particle soft error protection is divided into four grades according to the design characteristics of spacecraft in China, unified design is adopted, different means and strategies are adopted for protection of the grades, and the graded and hierarchical single particle soft error protection system structure is formed. The whole system structure utilizes satellite borne computing resources and completes a single particle soft error protection task jointly through a center computer fault-tolerance and system-level single particle protection module, a center computer, a comprehensive service unit and sub-system information processing units, and the system structure has good overall and local control performance. The grades of soft error protection strategies make full use of relevance between the spacecraft information processing units, the functional modules completing the single particle soft error protection can coordinate with one another, and a clear task interface is also kept.

Description

technical field [0001] The invention relates to a spacecraft single-particle soft-error protection system and belongs to the technical field of spacecraft single-particle soft-error protection. Background technique [0002] Single event soft error is one of the common space radiation effects in spacecraft on-orbit operation. In recent years, single event soft error has seriously affected the uninterrupted and stable service of many spacecraft in my country. In order to meet the requirements of large-capacity, high-speed, and complex information processing, the information processing units of existing spacecraft need to use a large number of devices such as DSP, FPGA, single-chip microcomputer, processor, I / O, and bus controller. The production level of single-event hardening devices is limited, among which there are many highly sensitive devices for single-event soft errors. Therefore, the uninterrupted and stable service of my country's spacecraft in orbit is facing a severe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/26
Inventor 于登云张弓郑晋军武向军杨聪伟胡伟刘安邦毕少筠司瑞国郭嘉
Owner BEIJING INST OF SPACECRAFT SYST ENG
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