铁路系统

First, the dissertation summarizes the properties, developing state and application fields of BLDCM, then its fundmental structure; operation principle and control strategy is also presented. On the base of roundly analyzing all kinds of the drive motor in electromotion type railway switch, BLDCM is proposed to replace the formerly traditional DC motor in railway switch. Second, the whole design scheme and key technology of control system is put forward based on analyse of the technical parameters and requirements.

首先，论文介绍了无刷直流电动机的特点、发展和应用概况，分析了稀土永磁无刷直流电机系统的基本构成、工作原理和控制方法；在对目前各种电动转辙机驱动电机分析的基础上，提出将稀土永磁无刷直流电机用于铁路转辙机，以替换原有的串励有刷直流电动机。

For developing the urban rail traffic system,the three subjects—reason,function and meaning of urban elevated railway,LRT and passenger traffic terminal in city are expounded.

论述了发展城市轨道交通系统中的三个问题——城市高架铁路、城市轻轨运输和城市客运枢纽的原因、作用和意义。

Train Control System has been a critical factor in railway transport system.

列车运行控制系统是铁路运输最重要的环节。

The analysis about the influence of TMIS upon freight train turnover time and corresponding economic benefits are made.

阐述了铁路运输管理信息系统经济效益的基本特征和表现形式，就TMIS对货车周转时间产生的影响以及由此带来的经济效益进行分析和数值模拟，并提出了反映TMIS综合经济效益的数量指标。

For gigantism of the system and a lot of complicated factors,which the most is uncertain,we must synthesize model operation and human-computer interaction and data calling to solve this puzzle,and offer valid data support for decision-maker,and satisfy requirements of railway modernization.

由于系统的庞大，涉及的因素众多，而且其中的许多是不确定的因素，因此需要使模型运算，人机交互，数据调用达到有机的统一，从而解决这一难题，为决策者提供有效的数据上的支持，满足铁路运输现代化建设的需要。

According to the shunting cars room's special position, using the advanced methods of data acquisition to collect the go-cart's signal, using the control technology of mature advanced modern PLC, we have designed the train close alarm system based on railway wheel sensor counts.

河北工程大学信电学院，河北邯郸 056038摘要：根据铁牛调车室的特殊位置，采用先进的数据采集方法，进行推车信号的采集，选用成熟先进的现代化PLC控制技术，设计了一种基于铁路车轮计数传感器的火车接近报警系统。

When the whole system is running, it will bring out mass of axle temperature wave, it is obvious inaptitude to carry out manually.

整个铁路运输系统运行的时候会产生大量的轴温波形，利用人工的方法对于这种大量的数据进行实时分类显然不适用。

VPDN of CDMA 1X is utilized here, combined with traditional dispatching and automation technology, a digital multifunctional information platform is built in the scheduling center The dispatching and mornitoring management of the transfonnations at interzone signal point are realized here.

该系统利用CDMA1X分组域的VPDN专线网，结合传统的调度自动化技术，在调度中心构建数字化多功能信息平台，实现了对区间信号点处变压器运行状态的实时监测与控制，同时也为铁路10kV自闭／贯通线上故障测距和故障诊断提供了相关的有效依据。

Rail, as one of the most sustainable forms of transport, offers an efficient, low-carbon mass public transportation system, as well as safety and space efficiency.

铁路作为交通运输最可持续的形式之一，提供了高效率，低二氧化碳排放量的公共交通系统，以及安全和空间效率。

In part, this is a matter of public history – we wrote in the aftermath of particular events in Britain – Princess Diana's car crash, the controversy over Cronenberg's film of Ballard's Crash, the disasters on the railways at Paddington and Hatfield, the millennium computer bug that threatened systems breakdown, but before the events of September 11th in New York.

在某种程度上，这是一个很重要的公共场所我们写的历史-在特定事件的后果-戴安娜王妃在英国汽车碰撞时，争议的电影，巴拉德·柯南伯格的崩溃，灾害铁路在帕丁顿车站，哈特菲尔德，千年计算机病毒系统故障，但之前威胁911事件在纽约。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。