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以北同蒲韩家岭至应县增建四线工程为例,介绍提速或新建自动闭塞区段,车站股道有效长超过轨道电路极限长度而需分割为两个轨道区段,以及正向发车进路与反向接车进路共用发送器且载频自动切换的ZPW-2000A站内电码化电路特殊设计的原理及遵循的设计原则。以一个车站为例,阐述了该工程电码化的特点及原则,分析了电码化各个单元电路的原理,并针对车站股道分割及载频自动切换特殊情况下的电码化设计给出了解决方案。
Take North Tongpu Hanjiling Ridge to Yingxian additional four-lane project as an example to introduce speeding or new automatic block section, the effective length of the station shares more than the limit length of the track circuit and need to be divided into two track sections, and the forward start ZPW-2000A station code-specific circuit design principles and follow the design principles of common transmitter and carrier frequency automatic switching. Taking a railway station as an example, the characteristics and principles of the project are expounded. The principle of each unit circuit is analyzed. The solution to the problem of code division in the special case of lane division and carrier frequency automatic switching is given .