Integrating physics-based and network protocol design for safety-critical communication systems

集成基于物理和网络协议设计以实现安全关键通信系统

• 批准号: 478958-2015
• 负责人: Sarris, Costas
• 金额: $ 9.22万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Strategic Projects - Group
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=641857
• 关键词: Integrating; physics; based; network; protocol

Communications-Based Train Control (CBTC) is aimed at replacing conventional rail signalling with train control enabled by wireless communication between the train and a network of access points. In a cellular communication system, network outage may cause a few dropped calls; in a CBTC network it directly compromises the safety of train passengers. Therefore, CBTC systems are safety critical, meaning that their projected benefits have to be accompanied by high standards of reliability, beyond those of typical communication networks. As a growing number of Canadians, including urban commuters in large metropolitan areas, heavily depend on rail transportation, meeting the challenge of intelligent design, deployment and effective maintenance of secure and reliable CBTC systems is as timely as ever. Instead of seeking incremental improvements in the relatively mature state of the current approach to CBTC system design, we propose its fundamental reconsideration from the physical to the network level. To that end, the present proposal is focused on the integration of network protocol design with the modeling of the underlying physics of wireless propagation, overcoming the virtual separation of network design and operation along disciplinary boundaries. This new paradigm for communication system design can lead to CBTC technologies of enhanced robustness and reliability, which can effectively serve the public need for rail transportation safety and efficiency. The anticipated benefits of this research extend beyond wireless rail signalling to any safety-critical communication system, for commercial and defence applications. Along with addressing fundamental questions, research in this area can produce tangible benefits for an industry that has, over the years, created significant revenue in Canada and projected the strength of Canadian innovation abroad.

基于通信的列车控制(CBTC)旨在用列车和接入点网络之间的无线通信实现的列车控制来取代传统的铁路信号。在蜂窝通信系统中，网络中断可能导致几个呼叫掉话；在CBTC网络中，网络中断直接危及列车乘客的安全。因此，CBTC系统是安全关键的，这意味着它们的预期收益必须伴随着高标准的可靠性，而不是典型的通信网络。随着越来越多的加拿大人，包括大城市地区的城市通勤者，严重依赖铁路交通，迎接智能设计、部署和有效维护安全可靠的CBTC系统的挑战一如既往地及时。我们不是在当前CBTC系统设计的相对成熟状态下寻求渐进式改进，而是提出从物理到网络层面的根本性重新考虑。为此，本提案的重点是将网络协议设计与无线传播的基本物理建模相结合，克服沿着学科边界的网络设计和运营的虚拟分离。这种通信系统设计的新范式可以导致CBTC技术具有更强的健壮性和可靠性，从而有效地服务于公众对轨道交通安全和高效的需求。这项研究的预期好处不仅仅是无线铁路信号，还延伸到任何安全关键的通信系统，用于商业和国防应用。除了解决根本问题外，这一领域的研究还可以为这个行业带来实实在在的好处。多年来，该行业在加拿大创造了可观的收入，并预测了加拿大在海外的创新实力。