船舶机舱自动化CAN现场总线监控系统体系结构及功能描述

本文介绍了船舶机舱自动化CAN现场总线监控系统的体系结构,CAN现场总线特性分层结构及性能特点,中央处理机及上位管理机软件功能描述。     

Overview and analysis of Vehicle Automation and Communication Systems from a motorway traffic management perspective

During the last decade, there has been an enormous interdisciplinary effort by the automobile industry and numerous research institutions worldwide towards the development, testing and employment of a variety of Vehicle Automation and Communication Systems (VACS) with the main aims to improve road safety and driver convenience. Some VACS, however, have a direct impact on road efficiency as well and could therefore be exploited to relieve road networks from the significant congestion problems and their negative consequences for travel times, safety, fuel consumption, the environment and the quality of life in general. In other words, some of the available VACS could also be used as novel or innovative sensors, actuators and tools towards a new era of traffic management. This paper provides an overview of proposed and available VACS and discusses their perspectives from the motorway traffic management point of view. Classifications of the different systems in this respect are also provided, while SWOT (Strengths–Weaknesses–Opportunities–Threats) analyses are used to identify specific exploitation ways. Current trends and future perspectives of VACS within a motorway traffic management context are finally summarised.     

Predictability impacts of airport surface automation

Past evaluations of airport surface operations automation technologies have focused on capacity utilization, delay mitigation and fuel efficiency impacts. Predictability, while recognized as an important operational performance goal, has received little attention. One reason could be that applicable predictability metrics have not been developed in the context of airport surface operations management. This research fills the gap by proposing metrics for predictability performance evaluation. Using results from a SARDA human-in-the-loop simulation conducted at NASA Ames’ Future Flight Central, we present a comprehensive assessment of the predictability impacts of airport surface automation. A wide range of the impacts is considered, which includes variability in taxi-out time, predictability of take-off time and take-off sequence, entropy of the airfield state, and perceived predictability from users.     

配电网自动化发展展望

讨论了配网规划的重要性,提出了配电网规划的一些设想。针对广州南区供电局的具体情况,提出了一个分阶段实施,纵横交叉进行的配电自动化系统的实施方案,并对配电自动化系统各部分功能进行了描述。     

航用行星高精度视位置计算研究

基于DE405星表数据文件,考虑相对论效应、岁差、章动、光行差影响,采用天文矢量处理方法,给出了一整套高精度行星视位置计算数学模型。采用VC 编程实现了行星视位置计算的自动化。分析表明,精度优于《航海天文历》。     

航标自动化的发展研讨

本文讨论了航标自动化的国内外现状和益处，详细论述了航标自动化应包括的内容，并提出了航标自动化未来的发展趋势。     

自动化驼峰间隔制动位短轻车控速程序改进

采用T.JK非重力式减速器作为调速工具的自动化驼峰,在间隔制动位对短轻车进行速度控制时,由于采用＂闯口＂式控制模式,容易造成低速出口。为此对速度控制方式提出了＂适度放入＂的改进方法,并在怀化南驼峰控制系统进行了实施,提高了系统对短轻车的控制精度。     

新一代编组站调度系统的开发理念与实践

对近20年来我国铁路编组站调度系统开发现状进行系统总结与分析,剖析编组站综合自动化系统背景下新一代编组站调度决策支持系统开发的新理念及实现功能,分析基于新理念的编组站调度系统开发实践及关键技术的研究进展情况,阐明未来编组站调度决策支持系统技术发展的方向。     

SAM与TDCS系统接口功能实现

为了解决新一代编组站综合自动化系统与既有列车调度指挥系统结合中的＂孤岛＂问题,必须建立信息共享平台,以实现2套系统间的信息共享及无缝连接。为此,对TDCS与SAM系统共享平台的基本功能进行描述,分析接口方式、接口界面、状态查询、共享信息等内容。     

编组站综合自动化实验室设计与规划

为满足SAM系统进行技术研究与产品开发的需要,按照依托＂二个运用＂、建成＂四大功能＂、实现＂二项成果＂的目标,从物的设计和人的规划两大方面阐述编组站综合自动化实验室的设计思路和规划流程,实现资源配置、人员管理和运营维护的合理优化。