计算机联锁工程设计[毕业设计].doc

计算机联锁工程设计[毕业设计].doc计算机联锁系统是保证行车安全的信号基础设备，必须保证工作可靠，并符合“故 障一安全”原则。实现联锁的基本功能，完成列车进路建立、锁闭、解锁、道岔控制、 信号机控制，完成轨道电路和信号设备状态的监督，实现铁路系统特殊的联锁功能，确 保列车进路正确和列车运行的安全。
本工程设计所选站场为一个虚拟车站一酒泉站的上行咽喉，设计内容包括：信号平 面布置图，该图能正确反映计算机联锁系统室外主要设备的布置情况，主要完成道岔、 警冲标、信号机坐标的计算并确定其位置；双线轨道电路图，站内采用25Hz轨道电路， 完成轨道电路的极性配置、扼流变压器的设置以及送受电端的布置；联锁表，包括基本 进路的选择、敌对信号的确定、轨道区段侵限检查等；电缆径路和电缆网络图，根据公 式计算电缆长度，选择电缆径路以及计算所需芯线数；系统结构图，可以了解所采用的 的系统硬件构成以及其工作原理；接口柜排列表，可以反映出各个设备所属的组合以及 驱动电路和采集电路所需的继电器类型；室内布置图，即室内各种设备的布置情况。
关键词：计算机联锁；极性交叉；联锁表
Abstract
Computer i nterIocki ng system ensure the safety of traff ic operat i on s i gnaI i nfrastructure so it must ensure worki ng re I i abIy and accord i ng to the “fail-safe" principle. The basic function of the inter locking is to create, I ock, re I ease, switch control, s i gna I contro I the completion of the train route, to comp Iete the superv i s i on of the state of track c i rcu i ts and s i gnaI i ng equipment, and use specia I i nterIocki ng rai I system to ensure the correct of the tra i n route and the safety of the tra i n operat ion.
The des i gn seIected for a v i rtuaI tra i n stat i on—J i uquan stat i on up d i rect i on throat, the des i gn eIements i ncIudes. The s i gnaI Iayout map, wh i ch accurate Iy ref Iect the sett i ng ci res of the mai n outdoor faci I ities, the mai n task to comp I ete are the switch, po I ice marked red and the ca I cu I at ion of the coord i nates of the s igna I and determi nat ion of the i r I ocat ions. Doub I e rai I track ci rcuit map, the stat ion uses 25Hz track ci rcui t, to comp Iete are the track ci rcuit polar ity conf igurat ion sett ings, impedance transformer and the arrangement of the end of sending or recei ving power consoIe. Disk map, including the ceI I types of seIect ion and the arrangement of the var ious buttons. Cab Ie pathways and cab Ie network, accord i ng to formuI a to caIcuI ate the Iength of cab Ies, seIect cab Ie pathways and caIcuI ate the requ i red number of cored wi re. We can understand the system hardware as we I