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Fpga-based Multi-channel Data Acquisition System with High Speed USB Interface Weiliu (Space Physics)

Author: LiuWei
Tutor: ZengLi
School: Graduate School, Chinese Academy of Sciences
Course: Space Physics
Keywords: FPGA USB Data acquisition Space environment exploration Quick response spacecraft
CLC: V446.9
Type: Master's thesis
Year: 2011
Downloads: 310
Quote: 2
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Abstract


In the space environment exploration, timely and efficient collection, storage and processing space environment detection instrument for scientific data, in order to further carry out scientific research. COTS (Commercial-Off-The-Shelf) means a commercial spot, it is able to meet the demand for space exploration instruments in the performance indicators, while lower than the aerospace grade and military grade devices cost and easy-to-get. COTS devices to respond quickly to the space environment exploration spacecraft instruments which can greatly reduce their development costs, shorten the development cycle, and at the same time able to meet the demand of detection performance. This article is intended to respond quickly to the demand for space environment exploration technology development, based on the design of the USB 2.0 interface and programmable logic FPGA space environment exploration data acquisition system for the study of the content. Combination the USB2.0 bus great potential as a rapid response to the system bus of the spacecraft, to explore the use of Actel Fusion Series mixed signal FPGA and Cypress EZ-USB FX2 chip design data acquisition system and technology. The paper is divided into four chapters, followed by Introduction, USB bus and FPGA technology, data acquisition system design, summarize and outlook. The first chapter introduces the development of space exploration environment, space exploration technology and its acquisition system, the analysis of the importance of the space environment particle radiation effects on space exploration equipment and space exploration equipment reliability design. Chapter II on the basis of the the introductory USB bus and FPGA technology, in accordance with the demand of the fast response chosen FPGA and USB interface chip, and improve the reliability of COTS devices discussed and tested FPGA devices. Chapter in accordance with the ideas and the order of the system design of the data acquisition system based on USB and FPGA design are discussed, this process, including system requirements analysis, the overall design, hardware design, software design. The overall system design analysis applied to the rapid response on the basis of the data acquisition system of the spacecraft design requirements, system design performance indicators. The hardware design some of the major the FPGA module designs as well as USB module design. Software design for communication between the FPGA, USB and computer USB interface firmware and drivers. The fourth chapter summarizes the technical specifications of this work, the system reached. Inadequacies and at work, the next phase of work.

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CLC: > Aviation, aerospace > Aerospace ( Astronauts ) > Space instrument,spacecraft devices,spacecraft guidance and control > Computing device > Data processing and recovery
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