The first Intercity metro-wide free WiFi:
4G nearly 7 times speed-free WiFi, subway, WiFi-IT information
Guangdong guangfo Metro China's first inter-city subway opened today-wide Wi-Fi network coverage. Whether in the concourse, platform, or is a moving train, passengers can be "wide" to enjoy free Wi-Fi.
According to the network speed in building Asia's charge, guangfo Metro wireless network "love Wi-Fi" not only "environment" free of charge, and Internet access speeds of up to 6.8 times times 4G network, you can watch HD online video , "episodes in the Metro, brush circle of friends is not a problem. "The official said.
Such a rapid construction of Metro wireless networks need to overcome many difficulties. First, modern Metro vehicles is based on wireless signal control of, need prevent wireless network signal on Metro run control system of interference; second, Wi-Fi signal of distance limit led to General wireless network to on fast mobile of phone, Terminal provides stable of network connection, how let high-speed driving of train in the has not interrupted of network connection is must conquer of another subject; also, in not interference Metro run of premise Xia, in dozens of km long of line Shang for thousands sets equipment of deployment installation, Need strong project implementation capacity. Facing the severe situation of network security and how to provide safe, reliable, private network connection service and development of important considerations when building.
Guangzhou-Foshan track transport company official said, Guangzhou-Foshan subway was the first intercity rail-wide Wi-Fi coverage, but also "Internet +" important practice in the rail transportation industry. Convenient services for upgrading at the same time, Wi-Fi-based information tools, improve the efficiency of rail transport operation management and level, such as Metro equipment intelligent inspection and monitoring, intelligent guidance of station passenger flow and emergency treatment.
国内首条城际地铁开通全环境免费WiFi：是
4G网速近7倍 - 免费WiFi,地铁,WiFi - IT资讯
我国首条城际地铁广东广佛地铁今天开通全环境Wi-Fi覆盖网络。不论是在站厅、站台，还是行驶的列车中，乘客都可以“全环境”享受免费无线网络。
据该网络投建单位亚网速信的负责人介绍，广佛地铁无线网络“爱Wi-Fi”不仅“全环境”免费，而且上网速度可达4G网络的6.8倍，可以观看高清在线视频，“在地铁上追剧、刷朋友圈都不是问题。”该负责人表示。
这样一个高速地铁无线网络的建设需要攻克诸多难题。首先，现代地铁车辆是基于无线信号控制的，需要防止无线网络信号对地铁运行控制系统的干扰；其次，Wi-Fi信号的距离限制导致普通无线网络难以对快速移动的手机等终端设备提供稳定的网络连接，如何让高速行驶的列车中拥有不中断的网络连接是必须攻克的另一个课题；此外，在不干扰地铁运行的前提下，在数十公里长的线路上进行上千套设备的部署安装，需要极强的工程实施能力。面对严峻的网络安全形势，如何提供安全可靠、私密性良好的网络连接服务，也是研发建设时需要着重考量的。
广佛轨道交通有限公司有关负责人表示，广佛地铁是第一个全环境Wi-Fi覆盖的城际交通轨道，也是“互联网+”在轨道交通行业的重要实践。便民服务再升级的同时，可以基于Wi-Fi的信息化手段，提高轨道交通运营管理工作的效率和水平，比如地铁设备的智能巡检与监测，站内客流智能疏导和突发事件应急处理等。