【摘要】：隨科技的發(fā)展,擁有著良好的工作特性和諸多的優(yōu)點(diǎn)的環(huán)形激光陀螺(RLG)已經(jīng)逐漸成為新一代慣性導(dǎo)航系統(tǒng)的理想核心器件。.而穩(wěn)頻系統(tǒng)是激光陀螺工作的基本前提,高穩(wěn)定性及可靠性的穩(wěn)頻器件對(duì)于陀螺的精度影響重大。 在激光陀螺的設(shè)計(jì)生產(chǎn)中,鑒于其結(jié)構(gòu)的復(fù)雜性往往需要對(duì)現(xiàn)場(chǎng)的光強(qiáng)數(shù)據(jù)實(shí)時(shí)采集并處理,需要可靠性足夠高的數(shù)據(jù)采集與處理系統(tǒng)。傳統(tǒng)數(shù)據(jù)采集技術(shù)基于PCI等計(jì)算機(jī)總線致使其受系統(tǒng)總線帶寬的限制,面對(duì)目前數(shù)據(jù)采集速率的要求增高的客觀形勢(shì)已經(jīng)處于性能瓶頸。本文分析了各種影響激光陀螺頻率穩(wěn)定性的因素,并介紹了常見(jiàn)的穩(wěn)頻方法及主要技術(shù)的優(yōu)缺點(diǎn)和可能的發(fā)展方向。并給出了一種基于USB2.O和LPC2368芯片的數(shù)據(jù)采集和信號(hào)處理的設(shè)計(jì)和實(shí)現(xiàn)方法。 論文結(jié)合基于USB總線的數(shù)據(jù)采集傳輸設(shè)備,簡(jiǎn)述了USB協(xié)議、組織結(jié)構(gòu)、傳輸模式、數(shù)據(jù)流類(lèi)型等,介紹了WDM驅(qū)動(dòng)程序的工作原理,設(shè)計(jì)原則和設(shè)計(jì)方法,形成一個(gè)實(shí)現(xiàn)USB傳輸?shù)某绦?詳細(xì)的介紹了該例程的各個(gè)功能模塊,得出了基于USB2.0規(guī)范的光強(qiáng)采集與傳輸系統(tǒng)的設(shè)計(jì)方案。該設(shè)計(jì)性能穩(wěn)定、傳輸可靠,已應(yīng)用于數(shù)據(jù)采集設(shè)備中。對(duì)系統(tǒng)的性能進(jìn)行測(cè)試的結(jié)果表明：數(shù)據(jù)的傳輸過(guò)程達(dá)到了設(shè)計(jì)的要求。驅(qū)動(dòng)程序設(shè)計(jì)過(guò)程的詳細(xì)介紹對(duì)USB專(zhuān)用設(shè)備驅(qū)動(dòng)程序的設(shè)計(jì)和開(kāi)發(fā)具有良好的參考應(yīng)用價(jià)值。
[Abstract]:With the development of science and technology, ring laser gyro (RLG), which has good working characteristics and many advantages, has gradually become the ideal core device of the new generation inertial navigation system. The frequency stabilization system is the basic premise of the laser gyro, and the high stability and reliability of the frequency stabilizer has a great influence on the accuracy of the gyro. In the design and production of laser gyro, in view of the complexity of its structure, it is often necessary to collect and process the light intensity data in real time, and a data acquisition and processing system with high reliability is needed. The traditional data acquisition technology is based on PCI and other computer buses, which is limited by the bandwidth of the system bus. In the face of the objective situation of the increased data acquisition rate, it has been in the bottleneck of performance. In this paper, various factors affecting the frequency stability of laser gyro are analyzed, and the common frequency stabilization methods, the advantages and disadvantages of the main technologies and the possible development direction are introduced. A design and implementation method of data acquisition and signal processing based on USB2.O and LPC2368 chip is given. Combined with the data acquisition and transmission equipment based on USB bus, this paper briefly describes the USB protocol, organization structure, transmission mode, data flow type and so on, and introduces the working principle, design principle and design method of WDM driver. A program to realize USB transmission is formed, each functional module of the routine is introduced in detail, and the design scheme of light intensity acquisition and transmission system based on USB2.0 specification is obtained. The design has been used in data acquisition equipment because of its stable performance and reliable transmission. The results of system performance test show that the data transmission process meets the design requirements. The detailed introduction of driver design process has good reference application value for the design and development of USB special device driver.
【學(xué)位授予單位】：南京理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類(lèi)號(hào)】：TN966;TP334.7

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