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针对目前城市轨道交通乘客信息查询系统的应用现状，应用成熟的计算机技术、网络技术及数据库技术，设计开发了一套智能化、集成化、网络化的乘客信息查询系统. 本文重点讨论了轨道交通乘客信息网络化查询系统关键技术的设计与实现，从系统软件总体结构、数据接口、软件系统、硬件系统以及网络系统等关键技术设计与实现进行了详细阐述. 最后通过实际系统开发应用，验证了系统关键技术实现的重要性和可行性，该系统对今后同类系统的设计、开发和实现有一定的指导意义和参考价值.

Realization of Key Technology of Metro Passenger Information Inquiry System

With the present status of metro passenger information inquiry systems,the intelligentized,integrated and networking self-service inquiry system is designed based on mature technologies of computer,network,and database.The design and realization of the key technology of inquiry system is documented.The system key technologies are presented in terms of overall construction design,data interface,software system,hardware system and network system.The importance and feasibility of system key technology are veri...