城市公交站交通冲突分析及对策

公交站是城市公交系统的重要组成部分,客流通过在公交站点上下车的方式实现了公交系统的日常运营.但在公交站往往因其在有限空间内集聚大量人流与车流产生交通冲突,对城市交通的顺畅及通达产生消极影响.本文分析了城市公交站主要交通冲突影响因素及其冲突成因,并针对一般停靠和港湾式停靠方式产生的交通冲途性提出了解决问题的对策与方法.     

论信息构建与档案网站建设

随着信息技术的不断发展，网络在人们生活中呈现出越来越重要的作用。各行各业都在不断建立网站，档案部门也不例外，纷纷设立档案网站，加强信息化建设。但点击我国的档案网站，我们就会发现，大多数档案网站内容单一、陈旧，不能适应当前利用者的需求。因此，利用信息构建的原理、思想、方法和技术对档案网站进行改造和重建是目前急需解决的一个重要问题。     

Ontology-based model of network and computer attacks for security assessment

With increased cyber attacks over years,information system security assessment becomes more and more important.This paper provides an ontology-based attack model,and then utilizes it to assess the information system security from attack angle.We categorize attacks into a taxonomy suitable for security assessment.The proposed taxonomy consists of five dimensions,which include attack impact,attack vector,attack target,vulnerability and defense.Afterwards we build an ontology according to the taxonomy.In the ontology,attack related concepts included in the five dimensions and relationships between them are formalized and analyzed in detail.We also populate our attack ontology with information from national vulnerability database(NVD)about the vulnerabilities,such as common vulnerabilities and exposures(CVE),common weakness enumeration(CWE),common vulnerability scoring system(CVSS),and common platform enumeration(CPE).Finally we propose an ontology-based framework for security assessment of network and computer systems,and describe the utilization of ontology in the security assessment and the method for evaluating attack efect on the system when it is under attack.     

基于DM642的车辆动态称重无线监控系统

采用TMS320DM642作为整个系统中视频图像的核心处理单元,使用H．264压缩算法,对现场采集的车辆图像进行处理,并通过CDMA无线网络,实现图像的无线传输．在分析DM642嵌入式DSP处理器特点的基础上,阐述系统的结构组成和各个功能,实现对车辆的实时监控．     

地铁列车乘客信息系统设备界面划分

文章阐述了地铁列车乘客信息系统工作原理,介绍了目前其与地面系统的界面划分的几种方案,并分析了其优缺点.