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CubeSat on-board computer

An on-board computer and cubic technology, applied in general-purpose stored-program computers, architectures with multiple processing units, etc., can solve the problems of increasing system cost and quality, and increasing system power consumption, and achieve improved integration and design flexibility. The effect of sex, low cost, strong immunity

Inactive Publication Date: 2015-08-19
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Using these methods will not only increase the cost and quality of the system, but also increase the power consumption of the system, which is not suitable for cube stars with limited volume and power consumption.

Method used

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Embodiment Construction

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] see Figure 2-5, in an embodiment of the present invention, a cube star onboard computer includes a voting control circuit, a processing system, a power supply module and a storage unit, the voting control circuit adopts MSP430 as the voting device of the system, and the processing system includes Cyclone V and Cyclone Two Nios II soft-core processors on the V, the two Nios II soft-core processors are CPU1 and CPU2, and the pow...

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Abstract

The present invention discloses a Cubesat on-board computer, comprising: a voting system, a processing system, a power supply module and a memory unit. The voting system is a voter adopting MSP430 as a system. The processing system comprises Cyclone V, and a CPU 1 and a CPU 2 on the Cyclone V, wherein the CPU 1 is responsible for acquiring data, scheduling tasks, computing and sending control commands, and storing satellite data and scientific data in SD cards, and the CPU 2 only simultaneously takes actions with the CPU 1 when computing the control commands so as to provide reference for the computing results of the CPU 1. According to the Cubesat on-board computer, provided by the present invention, when the reliability of the computer is ensured, the demands of processing capability are satisfied, the integration level of the system of the satellite-borne computer and the flexibility of the design are improved, and the volume, the mass and the overall power consumption of the system are greatly reduced.

Description

technical field [0001] The invention relates to an on-board computer, in particular to a cubic on-board computer. Background technique [0002] CubeSat is a new type of nanosatellite proposed in recent years, which adopts a modular design idea. The standard CubeSat adopts a 1U structure, with a volume of 10×10×10cm and a mass of no more than 1kg. On this basis, the CubeSat can be expanded and upgraded to 2U (20×10×10), 3U, etc. The development of CubeSat technology also puts forward higher requirements for on-board computer systems, such as smaller size, mass and power consumption, so it is difficult to use traditional redundancy technology to ensure that the computer runs in a strong radiation space environment. of high reliability and long life. [0003] Therefore, it is a more appropriate choice to use reconstruction technology on microsatellites with limited volume and power consumption, and use the existing components of the system to maintain the normal operation of...

Claims

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Application Information

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IPC IPC(8): G06F15/80
Inventor 于晓洲朱林妤白博周军郭健
Owner NORTHWESTERN POLYTECHNICAL UNIV
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