摘要
从宁波轨道交通1号线车载Wi Fi全覆盖的实践展开分析,研究Wi Fi覆盖对列车信号系统车地无线通信的影响,优化Wi Fi频段的设置、合理安装车载AP、控制车载AP功率,可消除同频干扰,实现车载Wi Fi覆盖和信号车地无线传输的兼容共存,并确保列车运行的安全。
The practice of full coverage of WIFI system in Ningbo Metro Line 1is analyzed in the paper. The effects arising from WIFI coverage on the communication between the wireless communication signal on the train and the ground communication system are also studied. By optimizing WIFI band setting,reasonable installation of vehicular AP and controlling vehicular AP power,the same- frequency interference can be eliminated. Consequently,the compatible coexistence of vehicular WIFI coverage and wireless signal transmission from train to ground is realized to keep the train running safely.
出处
《都市快轨交通》
北大核心
2015年第5期95-98,共4页
Urban Rapid Rail Transit
关键词
WIFI
车地通信
同频干扰
WIFI
train to ground communication
same-frequency interference
