基于SCORM的移动学习资源结构设计与实现

构建移动学习系统离不开移动学习资源的建设。在移动学习资源建设中,为了把低水平的学习资源整合成为高水平、可共享的教学单元,采用案例分析法,通过借鉴SCORM标准,并结合移动学习资源的特点,提出了基于SCORM内容模型的移动学习资源的结构设计与实现方法。     

A system design framework-driven implementation of a learning collaboratory

This paper describes a design process to support the development of a learning collaboratory, a distributed, computer-based, virtual space for learning and work. A learning collaboratory, as a distributed distance learning environment, offers great opportunities to expand the way people teach and learn and to broaden educational opportunities to an ever increasing range of learners. The challenge is to design distance learning technologies that engender meaningful learning experiences that take full advantage of the power of computer-mediated communication to support innovative learner-centered and collaborative interactions between students, teachers, subject experts, and resources. First, the paper describes the learning collaboratory design framework (LUCIDIFY), a design process that integrates methods and concepts from cognitive systems engineering, theories of learning and instruction, distributed computing, and computer-supported collaborative learning to guide the principled design of learning collaboratories. Next, the paper describes how LUCIDIFY was used in the design and implementation of the collaborative learning environment for operational systems (CLEOS), a learning collaboratory for teachers, students, and practitioners in the physical sciences. CLEOS features two virtual instrument tutorials, an asynchronous messaging system, a project-based design and management application, and a collaborative multi-user domain infrastructure.     

浅议野战机动通信系统安全电子盘的设计与实现

文中重点描述了安全电子盘的设计思想和实现,较好地解决了机械硬盘存在的问题,对提高信息安全水平有一定借鉴作用,对野战保障能力有促进作用。     

基于智能移动终端的安全检查系统设计与实现

为了提高矿山安全检查信息化水平,提出了一种基于智能移动终端的安全检查系统的设计与实现方案。该方案通过手持终端采集安全检查信息并将其保存到终端SQLite数据库中,同时利用Socket编程使终端安全检查信息通过WiFi无线通信技术传输到服务器数据库中。通过分析矿山安全检查信息来确定矿山的安全状况,从而实现对矿山的安全管理。     

基于JavaCard的NFC移动智能应用系统研究与安全设计

为了进一步提高移动智能终端在移动电子支付通信服务方面的高效性、应用性与安全性,以Java Card智能卡技术原理与NFC移动智能技术理论知识为前提,首先提出了一种基于Java Card和NFC技术的移动智能支付应用系统的模型框架,在该模型中设计了移动智能终端支付银行选择模块,其次针对多标签情况下的应用支付碰撞问题设计了一种改进的动态二进制防碰撞算法。研究表明,应用支付模型框架与防碰撞安全算法在移动电子支付通信服务方面均达到了次优化的应用与安全效果。     

双模移动终端主动探测系统的DSP设计与实现

针对移动终端用户身份识别的技术需求,设计了一种基于GSM和CDMA双模制式下基带信号处理的主动探测系统。为了满足主动探测系统的实时处理需求,采用高性能的DSP芯片TMS320C6416作为核心处理器,结合其他器件设计硬件系统,完成基带信号处理板中DSP芯片硬件接口的设计。经现场测试结果验证,系统能够实现对开机状态下GSM和CDMA移动用户身份信息的快速捕获,进而表明本设计可满足系统实时性和可靠性的要求。     

The implementation and evaluation of a mobile self- and peer-assessment system

Recently, more and more researchers have been exploring uses of mobile technology that support new instructional strategies. Based on research findings related to peer and self assessment, this study developed a Mobile Assessment Participation System (MAPS) using Personal Digital Assistants (PDAs) as the platform. In addition, the study proposes an implementation model of the MAPS that should facilitate the effectiveness of self- and peer-assessment in classrooms. The researcher argues that teachers and students can benefit from MAPS in various regards including more flexible assessment arrangement, more efficient use of time, and more opportunities for student reflection on learning and assessment. Thirty-seven students taking teacher-education courses with the researcher participated in this study, and these students employed the MAPS to conduct two-round assessment activities that would help these students assess both their own and one another’s final projects. Both the students’ valid responses in a survey herein and scores obtained from the assessment activities confirmed the benefits of the MAPS and its implementation model. Yet, the students voiced such concerns as the objectivity of peer-assessment and the difficulty of providing constructive feedback, and the correlation analysis indicated a lack of consistency between teacher-grading and student-grading.     

基于HTML5的政府移动OA系统设计与实现

随着3G网络的不断普及和4G网络的兴起,基于智能手机和平板电脑的移动应用异军突起.在电子政务领域,移动OA办公系统同样也引起了一轮新的办公革命,它极大地提升了政府的办公效率和管理水平,本文分析了基于操作系统的原生开发和基于HTML5的开发技术的优缺点,重点介绍了基于HTML5技术的政府移动OA开发中关键技术、主要特点.     

网络存储系统的设计与实现

文章介绍了当前网络存储系统的几种流行模式,并着重描述了具有发展前景的SAN存储系统的管理、控制及实现的原理。结合实际应用阐述了设计构造SAN存储系统的有效方法及采用该技术的优越性。     

The design and implementation of intelligent systems for structural integrity assessment

Recently there have been considerable advances in the development of systems for structural integrity measurement together with the inferential techniques and methods. Many of these systems have used first-generation expert system assumptions, resulting in systems which are incompatible and difficult to adapt or maintain. It is argued that complex intelligent systems can only be developed by a modular approach. Cooperating expert system design methodologies fulfil the design criteria.     

CAN总线智能节点的设计和实现

该文介绍了CAN总线的基本特点和智能节点数字量及开关量输入输出的设计实现,并给出了软件编制的方法。     

基于SIP的智能家庭网络的移动访问实现

随着移动通信技术的发展,智能移动终端将在智能家庭网络中扮演越来越重要的角色,智能设备之间的互操作性的要求也越来越高.在对OSGi(open services gateway initiative)规范研究的基础之上进行了扩展,提出了一种基于SIP(session initiation protocol)的智能家庭网络的移动访问实现来解决智能家庭网络中智能终端的移动性和互操作性.     

移动智能网软件自动化测试的研究与实现

对移动智能网原有的手工测试系统进行了分析,总结出测试系统存在的不足,提出了改进方案。改进后的自动化测试系统能够在测试用例执行的不同阶段实现测试自动化,包括测试用例的设计、数据表的配置、状态机的构造、测试结果的检查、测试环境的配置和回归测试。改进后的测试系统在移动智能网项目的测试中进行了实验,并对实验结果进行了分析。     

PKE智能钥匙系统设计

介绍了一种基于微芯公司PIC16F639和PIC18F4680单片机的汽车无钥匙门禁系统的设计方案.设计了应答器模块的高频发射与低频接收电路,基站模块的高频接收与低频发射电路,并给出了应答器模块的工作流程图.详尽分析了Keeloq加密解密过程以及系统间的通信协议.结果显示,此设计方案能够满足实际应用中的各种通信要求.     

The design and implementation of a distributed image understanding system

Computer vision is concerned with extracting information about a scene by analyzing images of that scene. Performing any computer vision task requires an enormous amount of computation. Exploiting parallelism appears to be a promising way to improve the performance of computer vision systems. Past work in this area has focused on applying parallel processing techniques to image-operator level parallelism. In this article, we discuss the parallelism of computer vision in the control level and present a distributed image understanding system (DIUS).In DIUS, control-level parallelism is exploited by a dynamic scheduler. Furthermore, two levels of rules are used in the control mechanism. Meta-rules are concerned mainly with which strategy should be driven and the execution sequence of the system; control rules determine which task needs to be done next. A prototype system has been implemented within a parallel programming environment, Strand, which provides various virtual architectures mapping to either a shared-memory machine, Sequent, or to the Sun network.     

非接触式激光测量系统平台的搭建与实现

零件三维逆向工程对当今的机械制造业具有重大意义,其中,三维表面数据测量是三维模型重建的前提,即是逆向工程的关键步骤之一.而非接触式激光测量技术是今后逆向工程中三维表面数据获取的发展趋势.基于光学三角法测量原理.本文设计了一种非接触式激光测量系统平台,包括主要硬件的选取、硬件系统搭建和VC 软件系统设计.通过一个凹槽零件的实验测量.得到了零件的形状数据,验证了该测量系统的可行性.     

一种可配置网间结算系统的设计与实现

随着通讯业的飞速发展，各个运营商之间的话务量不断增加。这样，对网间结算系统的要求越来越高。本文介绍了一种通信运营商之间结算系统的模型，此模型可以使复杂的结算协议变得简明、直观、可配置。     

简易自动仓储搬运小车的设计与实现

以Winbond生产的W79E227作为控制系统的核心,通过对直流电机驱动、红外引导、图形识别、无线通讯、显示等模块的软件编程,设计了一个能够实现以最优路径、最快速度、最高精度自动搬运仓储物体,并能显示走过的路径长度设计了一个能够实现以最优路径长度、时间及示意图的智能小车。