DCS在船舶机舱监测报警中的运用

机舱监测报警是船舶自动化的一个重要组成部分。该文设计和研制了适合船用的ＤＣＳ监测报警系统。系统的第一层是主站，功能是管理和显示；第二层为信息转发站，负责主站和监测报警站的通讯；第三层是监测报警站，直接面向船舶机舱的被测部位。本系统对机舱的各种物理信号，包括温度、液位、转速等巡回监测报警，具备丰富的显示和打印功能。系统中采用了各种抗干扰措施，按系统独立原则设计，确保了系统运行的可靠性。     

Automated driving and autonomous functions on road vehicles

In recent years, road vehicle automation has become an important and popular topic for research and development in both academic and industrial spheres. New developments have received extensive coverage in the popular press, and it may be said that the topic has captured the public imagination. Indeed, the topic has generated interest across a wide range of academic, industry and governmental communities, well beyond vehicle engineering; these include computer science, transportation, urban planning, legal, social science and psychology. While this follows a similar surge of interest – and subsequent hiatus – of Automated Highway Systems in the 1990s, the current level of interest is substantially greater, and current expectations are high. It is common to frame the new technologies under the banner of ‘self-driving cars’ – robotic systems potentially taking over the entire role of the human driver, a capability that does not fully exist at present. However, this single vision leads one to ignore the existing range of automated systems that are both feasible and useful. Recent developments are underpinned by substantial and long-term trends in ‘computerisation’ of the automobile, with developments in sensors, actuators and control technologies to spur the new developments in both industry and academia. In this paper, we review the evolution of the intelligent vehicle and the supporting technologies with a focus on the progress and key challenges for vehicle system dynamics. A number of relevant themes around driving automation are explored in this article, with special focus on those most relevant to the underlying vehicle system dynamics. One conclusion is that increased precision is needed in sensing and controlling vehicle motions, a trend that can mimic that of the aerospace industry, and similarly benefit from increased use of redundant by-wire actuators.     

计算几何在重力式结构稳定计算中的应用

针对重力式结构设计中进行多荷载工况、多设计方案的稳定性计算时,各种组合情况下的重力作用效应计算费时费力的问题提出基于计算几何学的计算方法,该算法将重力作用效应的计算问题简化。对重力式结构的设计断面,首先判断其凸凹性,然后利用水位线将其分解为多个子多边形,再根据子多边形内是否存在凹点计算子多边形面积、质心,最后汇总计算原设计断面的面积、质心和重力作用效应,进而得到稳定性指标。根据该算法编制了一套计算机程序,将其应用于株洲二线船闸项目的闸室计算,得到了良好的效果。     

铁路发展新形势下站场调速系统自动化面临的问题及实现方法

阐述当前我国驼峰调车场调速设备的种类及调速系统的制式,分析实现车辆调速自动化存在的问题,论述了新形势下实现调速系统自动化的方法和措施,提出了全面实现调速系统自动化的具体意见和建议。     

集装箱自动化无人堆场研究

介绍了在上海外高桥二期码头,利用上海港规划中的预留堆场6.45万平方米,建造的一个世界一流的全自动、无人化集装箱空箱堆场。该堆场采用具有自主知识产权的高、低架轨道龙门吊与中转平台相结合的接力式集装箱堆场装卸新工艺,结合数字通讯和自动控制技术、三维堆场管理与规划技术,实现对集装箱的高效自动装卸。     

机务段办公自动化系统中的安全文化管理

介绍了襄樊北机务段安全文化管理子系统要实现的功能及其各系统子模块设计，对系统的数据库设计思想和安全性设计进行了特别阐述。应用结果表明整个系统技术先进、效率高、开放性好，完全能满足用户的各项需求。     

船舶电气的发展与应用

对船舶电气的发展概况，特别是对船舶电力系统、电气设备、船舶电气自动化的最新应用情况及其发展趋势作了较为详细的介绍。     

综合自动化在牵引供电系统中的创新性应用

以邯郸供电段辖内的镇内变电所综合自动化改造为例,介绍了一种适用于电气化铁道的综合自动化系统的构成方案。针对高速区段牵引变电所运行中保护、控制部分存在的问题,详细阐述了测控装置创新性解决方案。     

全自动客车六面体柔性合拢夹具的开发与应用

详细地介绍了全自动六面体合拢柔性夹具的结构,定位及调查,并对合装夹具结构型式及合拢夹具制作安装后应满足的技术要求进行了重点阐述.     

浅析自动化系统在智能建筑中的应用

介绍了智能建筑综合管理的关键技术，同时也阐述了控制网是建筑自动化系统中最重要的部分，以及自动化系统在智能建筑中的应用。