Aerospace computer

Abstract

The invention provides an aerospace computer. The aerospace computer comprises an anti-fuse FPGA (Field Programmable Gate Array), a commercial SOC (System On Chip) and three DSPs (Digital Signal Processors), which achieve a system maintenance function. According to the aerospace computer provided by the invention, on the anti-fuse FPGA, not only is a state of each hardware unit module monitored, but also a state of each logic function operating on each hardware unit module is monitored, so that on the basis, the computer is dynamically loaded when necessary to guarantee a system to flexibly, reliably and uninterruptedly operate; the commercial SOC device adopted by the aerospace computer internally comprises an ARM dual-core processor used as a center control processor and a high-capacity programmable logic (PL) used for arithmetical logic operation acceleration, so that when a high integration level of the system is ensured, dual-computer backup of the center control processor is achieved by two cores of the ARM dual-core processor, hardware backup of a data channel and an interface is achieved by designing internal data association and an external interface on the PL, and a triple-modular redundancy voting mechanism of DSP interfaces is achieved by respectively designing the DSP interfaces; and according to the invention, the aerospace computer which is high in integration level, high in reliability and high in performance, is miniaturized and is flexible in configuration can be achieved.

Description

technical field [0001] The invention relates to the technical field of high-performance computing applied to spacecraft such as satellites and rockets, in particular to a highly integrated aerospace computer and its realization method. Background technique [0002] Computers on satellites, rockets and other spacecraft, due to the particularity of the working environment, especially require high-reliability designs. Most of the existing aerospace computers use shielding reinforcement and multi-mode redundancy design methods. These methods often use separate processing It can be realized by adding a CPLD chip or FPGA chip to a single processor or a single processor, and adopts a redundant design method to realize function backup, so as to achieve the purpose of obtaining equipment reliability. [0003] In terms of device selection, aerospace computers often use aerospace-grade devices. With the development of technology, commercial devices are gradually being used in aerospace...

AI Technical Summary

Problems solved by technology

[0008] 1) The high-reliability design solution is large in size, especially when multi-mode redundancy is used, it is often implemented by multiple independent processors;

[0009] 2) The computing power cannot meet the growing demand of spacecraft;

[0010] 3) Partially adopts the highly integrated design of mobile phone processors, without fully considering the requirements of reliability design;

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