共查询到20条相似文献,搜索用时 46 毫秒
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针对嵌入式系统在通用性及人机界面方面日益增长的性能要求,研究了Motorola公司的嵌入式微处理芯片MPC82XX的主要性能特点.给出了以MPC82XX为核心来构建通用硬件平台的设计方案,同时给出了该平台的硬件结构和各主要模块的电路设计方法. 相似文献
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如何设计一款能够通过网络实现远程拍照和浏览照片的IPCamera?本文通过采用ARM9和USB摄像头实现IPCamera.IPCamera使用S3C2410、AX88796等元件来组成硬件平台,再将Linux系统移植到硬件平台上,然后设计好相应的驱动程序和应用程序,最后将软件下栽到硬件平台. 相似文献
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嵌入式SOC系统设计 总被引:1,自引:0,他引:1
作为目前集成电路设计的主流,虽然SOC结构趋同性很大并且有众多商用IP核,但由于嵌入式系统的针对性,这就意味着从体系结构设计到BIOS、操作系统移植,要花费大量的时间与精力.通过对目前各种SOC体系结构的调查研究,提出了一种嵌入式SOC系统架构,功能完整、结构简单、易于扩展,稍加改动就可以满足大多数嵌入系统应用,并提供了一系列软硬件解决方案. 相似文献
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主要阐述了基于嵌入式系统的便携式实时数据采集系统的设计思想,采用将嵌入式实时操作系统μC/OS-Ⅱ和ARM Cortex-M3处理器相结合的设计思路,提出一套基于嵌入式技术的数据采集系统的解决方案,以满足实际需求。 相似文献
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为了有效地进行列车司机驾驶疲劳实时检测,利用ADI公司的双核DSP芯片ADSP-BF561,设计了车载的嵌入式列车司机驾驶疲劳在线检测系统。阐明了该嵌入式系统的硬件组成原理和PERCLOS非接触式疲劳检测方法,最后详细阐述了系统软件结构和设计实现方法。实验结果表明此方案能实时检测疲劳发生,该系统体积小、成本低、实时性好。 相似文献
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基于ARM处理器和Windows CE操作系统,以某高校校园为原模型利用Visual Studio 2005开发工具,结合嵌入式地理信息系统(GIS)平台——嵌入式超图(eSuperMap)软件,设计了一种校园智能导航系统。该系统分别安放在校园门口及主要路口,对校外来访者通过该系统查询该校各部门的地理位置、各部门的基本情况和联系方式等信息。可实现对学校电子地图的快速浏览、平移、缩放、信息查询,两地之间通行最佳路径方案提示,为校外来访者提供了方便、快捷的智能导航服务等功能。 相似文献
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Raafat Safanah M. Akmeliawati Rini Martono Wahyudi 《International Journal of Control, Automation and Systems》2010,8(5):1123-1132
This paper addresses an intelligent uncertainty function to improve the robust stability and performance of H
∞ controlled system in terms of reduced conservatism. The system is identified, output performance and control signal requirements
are controlled by proper selection of performance and control weighting functions. Adaptive Neuro Fuzzy Inference System (ANFIS)
learns the uncertainty bounds of model uncertainty that results from unmodeled dynamics and parameter variations, then the
developed uncertainty weighting function will be included in the synthesis of the H
∞ controller. ν-gap measure is utilized to validate the intelligent identified uncertainty bounds and measure the stability of the designed
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∞ controlled system as well. Experimental results on a servo motion system reveal the advantages of combining intelligent uncertainty
identification and robust control. Improved performance is achieved. The proposed approach also allows for iterative experiment
design. 相似文献
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M. R. Katebi Ikuo Yamamoto Masami Matsuura M. J. Grimble Hiroaki Hirayama Norihiko Okamoto 《国际强度与非线性控制杂志
》2001,11(13):1257-1284
》2001,11(13):1257-1284
This paper describes the robust control system design for a ship dynamic positioning system. The control design is based on an approximate linear model derived from the nonlinear hydrodynamic equations governing the horizontal motions of the ship. The nonlinear models of the ship, seawaves, current, wind and thrusters are derived and simulated for control design verification. The H∞ control design technique is employed to design the controller. The control problem is formulated in state‐space form and the design specifications are translated into requirements on the weighting functions of the error signal and the thrusters input. A tuning procedure is proposed based on the wind and wave disturbances. The controller is initially tested on the nonlinear ship model and simulation results are presented to demonstrate the robustness of the H∞ controller. Tank tests results are then presented to assess the controller performance. Copyright © 2001 John Wiley & Sons, Ltd. 相似文献
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通过分析近年来基于WiFi信号强度检测的室内定位技术研究成果,提出了一种基于WiFi和运营商基站信号(GSM、CDMA2000、WCDMA)等多模信号指纹匹配的室内定位系统.该系统采集WiFi和基站等无线多模信号,经过归一化、平滑化过滤生成与室内定位点相匹配的多模指纹数据库,通过移动终端实时获取的多模指纹信号与多模指纹数据库匹配,从而实现精确的室内定位.实验结果表明,系统能够实现室内精准定位,并对于WiFi信号的变化有较强的适应性. 相似文献