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，我们打算为地铁系统开发一个离网的、接近实时的智能通知和消息系统。这将使信息在2G/3G/4G/Wi-Fi受到限制的环境中实现安全、大规模的通信。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下系统将相关的特定位置的出行和服务状态信息传输到乘客的智能手机，而不需要电话信号。Mesh网络利用智能手机通过蓝牙和对等Wi-Fi与其他附近设备直接通信的能力，而不需要电网连接。这对于人流量很大但连接受限的环境特别有用，例如地下网络。然而，4G和Wi-Fi的兴起意味着Mesh联网技术在很大程度上还没有被开发出来，因为它在2013年底被iPhone和Android设备的开发者所使用。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关键优先事项。对于50年以上的网络-马赛、雅典、鹿特丹、里约热内卢、温哥华、纽约市和伦敦-尤其如此，这些地区的基础设施老化使得安装3G/4G连接不切实际、具有破坏性，而且成本极高(伦敦：TFL 2011：GB 1亿+)。如果我们的系统的技术可行性得到证明，我们的技术将使我们能够为地下网络开发一种创新的低成本、高影响的通信通道，并为昂贵、不切实际的通信基础设施工作提供替代方案。更广泛地说，该技术将适用于国防、矿业和紧急服务，作为意外停机或紧急情况的离网故障转移选项(附录：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).