Low-cost high-performance space computer

Abstract

The invention discloses a low-cost and high-performance space computer, comprising: 3 dual-core CPUs, 3 groups of dynamic memories, 3 pieces of program memories, an FPGA for arbitration and bus expansion, a PCIe bus switching chip, and a gigabit network bus switching chip. Dual-core CPU has various types of external interfaces; dynamic memory provides external expansion memory for CPU; program memory provides program storage space for CPU; arbitration and bus expansion FPGA judges and arbitrates the working status of CPU, and selects the HDLC low-speed bus of the CPU on duty External input and output; the PCIe bus switching chip is responsible for concentrating each of the 2 PCIe buses from the 3 CPUs into two external PCIe buses; the gigabit network bus switching chip is responsible for concentrating the 2 gigabit network interfaces Two external front-end network interfaces. The computer not only reduces external nodes, but also ensures signal quality and bandwidth.

Description

technical field [0001] The present invention relates to a computer device of electronic equipment used in space, in particular to a low-cost high-performance computer used in space. Background technique [0002] Space computers are widely used in spacecraft attitude control, data processing, payload and other fields. With the development of miniaturization, integration, integration and commercialization of satellites, space computers need to realize more and more function. Therefore, higher and higher requirements are put forward for space computers in terms of data processing capability, data throughput, power consumption, cost, and richness of external interfaces. Currently commonly used space computers are often unable to meet these increasingly high requirements. In addition, considering the complex space environment, the computer system used in space must also have high reliability and anti-single event capability. Contents of the invention [0003] The object of t...

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Problems solved by technology

[0003] The object of the present invention is to provide a low-cost high-performance space computer, to solve the problem that existing space computers generally cannot satisfy the data processing capability, data throughput, and performance of space computers in existing space applications. Highly demanding issues raised in terms of consumption, cost, and richness of external interfaces, etc.

[0004] The second object of the present invention is to provide a low-cost high-performance computer for space, to solve the problem that existing high-performance computers are not suitable for complex space environments, and cannot be used directly because they do not have high reliability and single-event resistance. problems in space applications

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