Two notable characteristics of tcn are as follows : ( 1 ) polling mac strategy is adopted in link layer by iec 61375 - 1 to ensure the certainty of data transmission time ; ( 2 ) train inauguration procedure is devised to realize the automatic allocation of rail vehicle address in the network . the paper consists of two nain parts : 1 . a sinulating system of wire twisted bus ( wtb ) inauguration Tcn的西大特点是: ( 1 )为了保证数据传送时间的确定性, iec61375 - 1标准在链路层采用轮询机制; ( 2 )由于列车编组经常变化,导致列车总线网络设备地址变化,为此iec61375 - 1设计了列车初运行过程,以实现列车组成变化后车辆地址的自动分配。
With an analysis of the influence of service frequency , the cars organization on the available length of the platform , and the influence of the station , the circumstance control system , as well as the equipment on the scales of station , the author agrues that the station scale shall be reduced by way of increasing the service frequency , cutting down the length of the platform , compressing the structural height of the station , so as to reach the goal of rational distribution of the auxiliary establishments 摘要通过分析发车频率及列车编组对站台有效长度的影响,以及车站结构型式、环控系统制式的选取和车站设施的布置对于车站面积的影响,初步探讨了缩小车站规模的方法和途径:提高发车频率,以缩短站台有效长度;选择合理的车站层数来压缩车站的高度;从环控系统的选取以及各种设施用房的合理布置上来减少车站用房面积。
A high - quality operative plan should focus on the important tasks , organize car flow into all kind of trains according to the demands of the marshalling plan , ensure that all departure trains leave station on time , schedule exactly the decomposing and marshalling of all trains and suitably arrange all trains to occupy the arrival and departure lines 一个好的阶段计划应该反映出本阶段的工作重点,并按照列车编组计划的要求,把车流及时编成各种列车,保证本阶段的所有出发列车都能正点发车,并能合理地安排列车解编顺序以及利用到发线接发列车。