摘要：Localization is one of the substantial issues in wireless sensor networks. The key problem for the mobile beacon localization is how to choose the appropriate beacon trajectory. However, little research has been done on it. In this paper, firstly, we deduce the number of positions for a beacon to send a packet according to the acreage of ROI (region of interest); and next we present a novel method based on virtual force to arrange the positions in arbitrary ROI; then we apply TSP (travelling salesman problem) algorithm to the positions sequence to obtain the optimal touring path, i.e. the reduced beacon trajectory. When a mobile beacon moves along the touring path, sending RF signals at every position, the sensors in ROI can work out their position with trilateration. Experimental results demonstrate that the localization method, based on the beacon reduced path, is efficient and has flexible accuracy.

摘要：本文建立了一个面向严重肢体残障人士的眼动交互绘画系统.为此,首先给出了眼动数据的预处理与分析方法;为减弱米达斯(Midas)接触问题对眼动行为判别的影响,提出了基于时域约束的注视点聚类算法,可提取出注视点判断用户当前的视点中心,并据此进一步判断用户眼睛行为;针对眼动原始数据中的噪声影响,设计了窗口长度自适应的视点信号平滑处理方法,可减弱视点抖动产生的噪声,实现自由绘画较为平稳的绘画轨迹.在此基础上,设计并实现了基于ASL眼动仪的眼动交互式绘画系统.

摘要：设计了面向目标跟踪的声学传感器网络,并进行了声源定位实验.在实验结果基础上,针对传感器的布局对目标观测精度的影响,对面向目标跟踪的传感器网络布局问题进行了深入研究,改进了已有传感器感知模型,提出了涉及目标的虚拟力算法,使得可移动传感器能根据目标位置和重要性程度自主地调整网络布局,从而优化目标跟踪结果.仿真实验表明,上述策略可有效改善传感器网络覆盖率和目标探测概率.

摘要：Based on the system of electric power supply for flexible manufacturing systems (FMS), a study has been carried out on the intelligent safety examination, monitoring and maintenance of its running environment. On the basis of the specific feature of the power supply network of an FMS, real time monitoring system of the power supply network and the fault diagnostic expert system for the power equipment have been designed. This system can diagnose not only definite fault phenomena, but also fuzzy, uncertain fault phenomena as well. Fault diagnostic knowledge base for the power equipment has been founded hierarchy architecture model and the method of fault tree analysis. Feasibility of this system has been proved by computer simulation.

摘要：在分析现有短信监控系统不足的基础上,结合文本分类技术和行为识别技术,设计了一种垃圾短信监控和过滤系统.系统综合考虑短信发送行为特征、短信文本内容等特点,并采用实时分类和离线分类相结合的方法进行高效短信过滤.此外,还设计了一组基于反馈的自学习机制,使分类器具备增量式学习能力.与传统方法相比,该方法在过滤效率和准确率两方面均获得大幅度提升.

摘要：近年来,全球化水平不断提高,中外经济、文化交流也越来越频繁,各行各业对外语人才的渴求也越来越急迫。英语不仅仅是停留在书本上的知识,还是一门正在被广泛应用着的语言,只有把学习者放到英语交际环境中,才能更好地锻炼其英语能力,摆脱"应试英语"的束缚。本文先是探讨了艺术类高职公共英语跨文化教学的现状,然后指出了跨文化这一概念对公共英语教学的重要影响,并在此基础上提出了艺术类高职公共英语教学改革的几点建议,以期能促进高职生英语水平的提高和高职英语教学质量的改善。

摘要：针对传统的使用脚本语言实现控制算法组态的专业性强、易出错等特性,提出一种控制系统可视化组态平台的设计与实现方法。在该平台上可以方便快速地实现多变量解耦控制、模糊-PID控制、Smith预估控制、预测控制等多种复杂控制系统的组态,并可以通过仿真设定和调整控制系统参数。组态结果可直接加载运行平台。对某电厂机组锅炉的燃烧控制系统的应用表明,运用该平台对多变量时滞控制系统进行组态灵活方便,控制效果令人满意。

摘要：本文结合某一级公路项目软土分布特点,系统介绍了CFG桩在公路软土路基设计中的过程,同时针对公路项目中一般路段、结构物路段、桥涵路基衔接过渡段进行针对性设计,该设计方法已经付诸实施,且公路软基处理路段运行良好,设计中的相关经验供大家交流学习。

摘要：随着我国路网的不断完善,公路节点问题越来越突出,尤其是互通立交面临着衔接问题,导致桥梁进行拼宽改造。结合某高速公路项目桥梁拼宽设计,浅谈桥梁拼宽设计中的几点注意事项,供大家交流学习。

摘要：随着高速公路的发展,砂土作为高路堤填料日益增多,本文设计了3种高路堤的填筑方案并运用大型岩土分析软件FLAC3D对砂土填筑高路堤的稳定性进行计算分析,为砂土填筑高填路堤的设计提供参考。