摘要
利用铁路既有的无线列调和分组交换网,提出了基于GPS的机车运行信息实时传输系统的设计方案,采用话音压缩/扩展、无线数话同传、计算机网络等技术完成机车和地面系统之间数据传输.结果表明,该设计方案是可行的.
In this paper, the authors suggest a design of transmission system used in realtime trains operation status based on GPS with train dispatching radio communication system and railway packet switched network .The system can implement data transfer between train and ground according to the technology of datavoice synchronous,information disposal and computer net. The design is proved to be effective.
出处
《长沙铁道学院学报》
CSCD
北大核心
2003年第3期63-66,共4页
Journal of Changsha Railway University
关键词
差分GPS
无线列调
铁路分组交换网
话音压缩/扩展
数话同传
differential GPS
train dispatching radio
railway packet switched network
voice compression/expansion
data-voice synchronous