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Radiation resistance and reinforcement parallel on-board computer system and use method thereof

A computer system, radiation hardening technology, applied in the direction of response error generation, multi-programming device, redundant data error detection in hardware, etc., to achieve the effect of improving reliability and performance

Active Publication Date: 2014-04-23
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a radiation-resistant hardened parallel planetary computer system and its use method to solve the existing problems

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  • Radiation resistance and reinforcement parallel on-board computer system and use method thereof
  • Radiation resistance and reinforcement parallel on-board computer system and use method thereof
  • Radiation resistance and reinforcement parallel on-board computer system and use method thereof

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Embodiment Construction

[0027] The radiation-resistant hardened parallel planetary computer system and its application method proposed by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0028] Please refer to figure 1 , which is a schematic diagram of a radiation-resistant hardened parallel planetary computer system according to an embodiment of the present invention. Such as figure 1 As shown, the present invention provides a radiation-resistant hardened parallel planetary computer system, including: a system control unit 11 and a first subsystem 12, a second subsystem 13 and a third subs...

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Abstract

The invention relates to a radiation resistance and reinforcement parallel on-board computer system and a use method thereof, belongs to the field of on-board computer radiation resistance and reinforcement, and is realized through three DSP (Digital Signal Processor) chips and four FPGA (Field Programmable Gate Array) chips. The system consists of a system control unit and three same subsystems, wherein the system control unit is realized on one FPGA, and each subsystem comprises one DSP and one FPGA, and is connected with the system control unit. The system adopts a '2 parallel + 1 backup' structure, the two DSPs carry out parallel processing of on-board tasks, and the rest DSP serves as a backup DSP, and the backup DSP replaces the failed DSP when the DSP carrying out concurrent working has unrecoverable faults. The three DSPs are all interconnected through an external memory interface (EMIF) and a hardware platform interface (HPI). The system selects different backup mechanisms which comprise a fixed backup mechanism, a rotary backup mechanism and a preprocessing backup mechanism according to requirements of the on-board tasks.

Description

technical field [0001] The invention relates to the field of anti-radiation hardening of on-board computers, in particular to an anti-radiation hardening parallel on-board computer system and a method for using the same. Background technique [0002] Space radiation is one of the main causes of spacecraft failure. As the critical dimensions of semiconductor devices shrink, the impact of space radiation on devices is becoming more and more significant. The control system installed on the early spacecraft was relatively simple, and the space mission was mainly completed under the control of the remote control system. With the development of space application technology, the space mission became more and more complex and diverse, and the amount of data to be processed also increased sharply. , the traditional on-board computer system has been far from meeting the performance requirements. Complex tasks represented by large-scale image processing and autonomous navigation of sp...

Claims

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Application Information

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IPC IPC(8): G06F11/16G06F9/46
Inventor 付宇卓张博刘婷
Owner SHANGHAI JIAO TONG UNIV
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