Development of the Wyld Research Mesh Network - an Off-Grid, near real-time, intelligent notification and messaging system for underground metro systems.

利用网状网络技术，我们打算开发一个离网，近实时，智能通知和消息系统的地下地铁系统。这将在2G/3G/4G/Wi-Fi受限的环境中实现安全的大规模信息通信。实际上，这意味着一个离网通信通道，可以在几分钟内通过整个地铁系统将相关的、特定位置的旅行和服务状态信息传输到乘客的智能手机上。无需电话信号。网状网络利用智能手机的能力，通过蓝牙和对等Wi-Fi直接与附近的其他设备通信，而不需要电网连接。这对于那些人流量大但连通性受限的环境（如地下网络）尤其有用。然而，随着4G和Wi-Fi的普及，自2013年底iPhone和Android设备的开发人员更容易使用Mesh网络技术以来，Mesh网络技术在很大程度上还没有得到开发。随着乘客数量的持续增加，改善地铁网络上的通信和用户体验是地铁运营商的一个关键优先事项。对于50年以上的网络尤其如此--马赛、雅典、鹿特丹、里约热内卢、温哥华、纽约市和伦敦--在这些地方，老化的基础设施使得安装3G/4G连接变得不切实际、具有破坏性，而且成本极高（伦敦1亿英镑以上：TfL 2011）。如果我们的系统的技术可行性可以得到证明，那么我们的技术将使开发一个创新的低成本，更广泛地说，该技术将适用于国防、采矿业和紧急服务，作为计划外停电或紧急情况下的离网故障转移选项（AppA：1）。

Utilising Mesh Networking technology, we intend to develop an Off-Grid, near real-time,intelligent notification & messaging system for underground metro systems. This will enablethe secure, mass communication of information in environments where 2G/3G/4G/Wi-Fi arerestricted.In practice, this means an Off-Grid communication channel that can transmit relevant,location-specific travel & service status information through an entire underground systemwithin minutes to passenger smartphones, without the need for phone signal.Mesh Networking leverages smartphones ability to communicate directly with other nearbydevices via Bluetooth & Peer to Peer Wi-Fi, without the need for a grid connection. This isparticularly useful to environments where there is a high footfall but restricted connectivitysuch a underground networks. The rise of 4G & Wi-Fi availability however has meant thatMesh Networking technology has largely been unexplored since it was made more accessibleto developers for iPhone & Android devices in late 2013.Improving communication and user experience on the tube network is a key priority forunderground metro operators as passengers numbers continue to increase. This is particularlytrue for network over 50 years old - Marseille, Athens, Rotterdam, Rio de Janeiro, Vancouver,New York City & London - where aging infrastructure makes the installation of 3G/4Gconnectivity impractical and disruptive, and extremely costly (£100m+ in London: TfL 2011).If technical feasibility of our system can be proved then our technology will enable thedevelopment an innovative low-cost, high-impact communication channel for theseunderground networks and provide an alternative to costly, impractical communicationinfrastructure work.More widely, the technology will have applicability in Defence, the Mining industry and withthe Emergency Services as an Off-Grid failover option for unplanned outages or emergencies(AppA:1).