This is an introduction to the unique logic plan of SEI Interlocking System brought in Qin-Shen Passenger Dedicated Line from Europe, coming with an interlocking flow chart.

• 通过对我国秦沈客运专线引进的欧洲高速铁路SEI系统联锁逻辑实现方式的研究探索,并配以联锁流程图予以说明,介绍SEI系统特有的联锁逻辑方式。