本文分析了现有列车运行状态信息系统（LAIS）技术的运用情况及不足，结合现行无线通信技术运用情况对LAIS新技术的运用，以及新功能的开发进行了系统说明。%The application and problems of the existing information system of train running status (LAIS) were analyzed in this paper. Then the use of current wireless communication technology in LAIS and the development of new function for the system were combined to describe the system in detail.
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