基于嵌入式系统的机械车载监控终端研究

介绍了基于嵌入式系统的车载监控终端的研究,给出了系统总体结构和各模块的功能,介绍了系统的硬件设计,详细介绍了嵌入式系统中CAN总线的硬件和软件设计.     

通用嵌入式32位RISC CPU设计概述

近年来,嵌入式微处理器在SoC设计中得到了广泛应用。嵌入式微处理器设计成为一个颇受欢迎的话题,其设计过程主要包括规格定义、指令集、体系架构、总线接口、顶层模块划分、子模块设计和验证、系统整合与调试、系统级验证、FPGA原型验证和软件开发环境等几方面。     

基于Linux的嵌入式数据采集系统

数据采集系统是集计算机、通信及电子技术、工业控制为一体的综合探测系统.本文介绍了基于嵌入式Linux的数据采集系统的硬件结构和软件设计.为提高系统的实时响应性能和多任务处理能力,在硬件上采用ARM9微处理器技术,同时移植Linux操作系统,使系统的可靠性和可扩展性得以提高.设计中充分利用了嵌入式Linux的特点.系统软件模块有数据采集模块、数据处理模块、数据通信模块和数据诊断模块.将嵌入式Linux操作系统引入数据采集系统的设计中,加速了系统的开发,方便了将采的功能扩展,提高了观测数据的及时性和准确性,实现了观测的自动化.     

嵌入式应用系统中字符LCD模块软件的设计与实现

嵌入式系统不同于以往的通用系统，它具有高集成度、高专用性的特点。着重介绍了嵌入式系统中的LCD显示模块。以HD44780LCD控制器为例，给出了嵌入式系统中字符LCD模块的硬件构成、软件特征和接口函数设计方法。对于嵌入式系统应用程序的模块开发具有借鉴意义。     

基于嵌入式模块的多传感器目标识别系统设计

设计了一种新型的基于嵌入式网络模块的多传感器目标识别系统,并在此基础上研制系统的原型样机;该系统的硬件环境由嵌入式系统、GPRS无线收发模块以及相关的接口电路共同组成,平台的支撑软件系统包括自行研制的基于嵌入式系统的多传感器数据采集、GPRS无线数据传输和目标特征提取及分类识别软件,在支撑软件上,构造面向开发的应用环境;通过系统测试,整个系统的功能较完备,性能有效稳定,安全可靠,达到了预期的实时地处理数据和分析数据的目的。     

无线通信在嵌入式系统中的应用

本文介绍了无线数传模块在嵌入式系统中的应用,嵌入式处理器与无线模块的硬件接口设计,无线模块的驱动程序的编写,预约式点对多点无线通信的传输协议的制定以及实现。为无线通信在嵌入式系统中的应用提供了有效的方案。     

无线通信在嵌入式系统中的应用

本文介绍了无线数传模块在嵌入式系统中的应用,嵌入式处理器与无线模块的硬件接口设计,无线模块的驱动程序的编写,预约式点对多点无线通信的传输协议的制定以及实现.为无线通信在嵌入式系统中的应用提供了有效的方案.     

嵌入式机器视觉测控系统设计研究

嵌入式系统的逐步广泛应用,为智能机器人视觉控制系统的研究提供了一条新的思路。该文将嵌入式系统与机器视觉控制结合起来,设计探讨了基于嵌入式系统的机器视觉测控系统,给出了总体的软件和硬件设计方案,并在此基础上,重点对系统设计中的关键技术问题进行了研究分析,从图像采集模块和实时跟踪算法控制模块两个角度进行了设计,对于进一步提高嵌入式系统与智能机器人控制系统的研究和应用具有一定借鉴意义。     

网络家电系统的嵌入式接口设计

根据网络家电的特点和要求，采用DSSOCA00网络微控制器设计了网络家电系统的嵌入式接口模块，描述了系统的体系结构及其组成，阐明了嵌入式网络接口模块的硬件设计。远程用户使用该系统可以通过Internet与DS80C400进行通信，实现对家电的远程监控。     

一种基于无线传输技术的智能传感器系统

设计了一种新型的基于GPRS的无线智能传感器系统,并在此基础上研制系统的原型样机。该系统的硬件环境由嵌八式系统、GPRS无线收发模块以及相关的接口电路共同组成;平台的支撑软件系统包括自行研制的基于嵌入式系统的传感器数据采集、GPRS无线数据传输程序。通过系统测试,整个系统的功能较完备,性能有效稳定,安全可靠,达到了预期的实时采集数据的目的。     

组合导航系统快速原型设计

为加快捷联惯性导航/卫星定位组合导航系统（Strapdown Inertial Navigation System/Global Positioning System,SINS/GPS）从算法到硬件产品的实现过程,采用快速原型技术进行设计.该方法在1个统一的Matlab/Simulink开发环境中建立系统模型并进行数字仿真;借助RT-LAB快速原型开发平台和实时工作间（Real-Time Workshop,RTW）为系统模型自动生成代码并加载到目标机和DSP硬件;实现SINS/GPS组合导航系统DSP硬件在回路仿真的快速原型设计.系统实时仿真结果与数字仿真结果一致,表明其具有开发周期短、实时性能好等优点.     

水下航行体控制系统快速原型设计

基于V模式的控制系统开发流程,研究了适用于水下航行体控制系统开发的快速原型仿真系统,进行了控制系统快速原型设计。利用dSPACE、光纤反射内存网、以太网、相应的物理效应仿真硬件和xPC技术建立了拓展性很强的快速原型仿真系统。给出了水下航行体的运动方程组,进行了控制律设计和不同控制参数下的半实物仿真。实践证明,控制系统快速原型技术的发展有力地支持了日益复杂的水下航行体控制器的开发。     

C6000DSK的视频处理系统设计

在高性能的视频处理系统设计中,大多采用DSP芯片作为主处理器,由于TIC6000系列的设计工作还存在着硬件设计困难及成本高等诸多问题,因此,本文选择了一个折衷方案,先在C6711DSK平台上进行初期开发,以TIC6711DSK软硬件开发平台为基础,只要设计一块图象采集子板就可以完成视频处理系统硬件设计。这个解决方案提高了系统设计的成功率,加快了系统原理样机的研制过程。     

一种红外成像导引头通用信息处理平台

红外成像导引头集光机电于一身,设计难度大、研制周期长。为了缩短导引头研制周期、降低开发成本,提出一种通用的信息处理平台方案。本方案采用FPGA+DSP架构,有较强的通用性,易于维护和扩展,可以在原理样机阶段迅速搭建硬件平台,用于系统验证和弹载软件调试,并为后续的产品研制提供有力支持。     

A hybrid system for embedded machine vision using FPGAs and neural networks

This paper presents a hybrid model for embedded machine vision combining programmable hardware for the image processing tasks and a digital hardware implementation of an artificial neural network for the pattern recognition and classification tasks. A number of possible architectural implementations are compared. A prototype development system of the hybrid model has been created, and hardware details and software tools are discussed. The applicability of the hybrid design is demonstrated with the development of a vision application: real-time detection and recognition of road signs.     

Design and implementation of the tree-based fuzzy logic controller

In this paper, a tree-based approach is proposed to design the fuzzy logic controller. Based on the proposed methodology, the fuzzy logic controller has the following merits: the fuzzy control rule can be extracted automatically from the input-output data of the system and the extraction process can be done in one-pass; owing to the fuzzy tree inference structure, the search spaces of the fuzzy inference process are largely reduced; the operation of the inference process can be simplified as a one-dimensional matrix operation because of the fuzzy tree approach; and the controller has regular and modular properties, so it is easy to be implemented by hardware. Furthermore, the proposed fuzzy tree approach has been applied to design the color reproduction system for verifying the proposed methodology. The color reproduction system is mainly used to obtain a color image through the printer that is identical to the original one. In addition to the software simulation, an FPGA is used to implement the prototype hardware system for real-time application. Experimental results show that the effect of color correction is quite good and that the prototype hardware system can operate correctly under the condition of 30 MHz clock rate.     

基于FPGA的航空发动机电子控制器设计技术研究

基于FPGA的并行运行、可重配置以及采用软/硬件协同设计的技术特点,提出了一种基于FPGA的片内分布式航空发动机电子控制器设计方法。重点研究了FPGA内嵌处理器选型、硬件协处理器及同步数据总线设计等3个关键技术问题。在此基础上,基于Altera FPGAEP2C35设计了控制器原理样机,并进行了硬件性能测试,结果表明该控制器设计方法在当前的技术条件下具有实施的可行性。所提出的发动机电子控制器设计方法有利于克服当前集中式电子控制器设计时存在的软件高度定制、可重用性差、并行实时任务开发难度大、开发效率低等缺     

Emulation of an ASIC power and temperature monitoring system (eTPMon) for FPGA prototyping

Hardware monitoring information can be used during system runtime to increase system lifetime and reliability. Examples of such monitoring information are power, temperature, and the aging status of processors. They provide the system with relevant information about the current hardware health. Such information is especially crucial in resource-aware computing concepts that introduce self-organizing behavior to deal with large MPSoCs (Multi-Processor Systems-on-Chip): For resource-aware computing, resources are allocated according to the current requirements. To find suitable resource-application pairs and achieve system targets like optimizing the utilization, current hardware status must be considered during resource allocation.To evaluate and optimize resource allocation strategies during the design phase, FPGA prototyping is often required before its implementation in ASIC. The evolution of power, temperature and aging differ between ASIC implementation and FPGA prototype. The FPGA prototype should react on sensor data characterized from the target ASIC design instead of FPGA’s hardware status.This paper describes the design of an emulated ASIC Temperature and Power Monitoring system (eTPMon) for FPGA-based prototyping. The emulation approach for power monitors is based on an instruction-level energy model. For emulating temperature monitors, a thermal RC model is used.eTPMon can supply MPSoC prototypes with the hardware status information (power and temperature of the cores) needed for efficient load distribution, achieving resource-aware computing targets. Based on the eTPMon data, different operating strategies and control targets were evaluated for a 2-tile resource-aware MPSoC system. Values provided by eTPMon are usable for extracting information about the aging of processors, which can be used for increasing the system lifetime.     

A case study in embedded-system design: The VuMan 2 wearablecomputer

The development of an embedded-computer system with a visual interface is described. The authors detail the use of a target system simulator and a prototype printed circuit board (PCB), which facilitated a concurrent approach to the design of the hardware, software, and housing. They outline this codesign process and illustrate its effects with comparative data from the earlier VuMan 1 project     

Software storming: combining rapid prototyping and knowledgeengineering

A method for rapidly producing highly functional prototypes is described. This method, called software storming, involves experts in the initial design and implementation of a system during an intense development effort that combines knowledge engineering with the latest advances in software-development technology and workstation hardware The experiment described is a test of tools and techniques developed in the field of artificial intelligence as well as the first step in the development of software storming. Using this approach, the authors developed a software prototype which possesses significantly more functionality than a standard prototype, in less than four months