DeFaultSENS: Design of fault-tolerant wireless sensor protocols for security surveillance and critical conditions monitoring of context aware physical environment

随着无线网络的最新技术发展，以及具有数字处理，供电，多种传感和通信功能的多功能传感器，无线传感器网络正在经历一场革命，有望对整个社会产生重大影响，从环境应用（如火灾探测，洪水探测，精准农业），健康应用（如人体生理数据的远程监控）到家庭应用（如智能环境和家庭自动化）。毫无疑问，所有这些应用都对我们加拿大的社会和经济非常有益。在这个项目中，我们专注于需要对临界条件下的物理环境进行细粒度监测的应用，例如火灾，有毒气体泄漏和爆炸。这些场景对传感器网络协议提出了很大的挑战，传感器网络协议必须为事件扩散提供快速、可靠、容错和能量感知的通道，以满足基于查询、事件驱动和周期的传感器网络应用场景的要求。即使在可能导致节点故障和通往中央控制器的路径中断的紧急情况下，也必须满足这些要求。因此，我们的目标是为无线传感器网络设计新颖的容错、可靠、低延迟和能量感知框架，并为上下文感知物理环境的关键条件监控设计基于web的安全监控。在这种情况下，重要的是在紧急状态进行时从物理环境中感知信息，因为安全和救援队可以使用更精确的信息进行业务管理和改进战略决策。Pis正在响应安大略省和加拿大公共安全和应急准备部门日益增长的需求，设计一个强大可靠的无线传感器基础设施，用于对上下文感知的物理环境进行关键监测，并保护我们的关键基础设施。

With the recent technological development in wireless networks, and multi-functional sensors with digital processing, power supply, diverse sensing and communication capabilities, wireless sensor networks have been undergoing a revolution that promises to have a significant impact throughout our society, from environmental applications (such as fire detection, flood detection, precision agriculture), health applications (such as telemonitoring of human physiological data) to home applications (such as smart environments and home automation). All of these applications are, in no doubt, quite beneficial to our Canadian society and economy.In this project, we focus on applications that require fine-grain monitoring of physical environments subject to critical conditions, such as fire, leaking of toxic gases and explosions. These scenarios pose a great challenge to sensor network protocols which must provide a fast, reliable, fault-tolerant and energy-aware channel for events diffusion, which meet the requirements of query-based, event-driven and periodic sensor networks application scenarios. These requirements have to be met even in the presence of emergency conditions that can lead to node failures and path disruption to the central controller.It is, therefore, our goal to design of novel fault-tolerant, reliable, low latency and energy aware framework for wireless sensor networks, and a web-based security surveillance for critical conditions monitoring of context aware physical environments. In such situations, it is important that information be sensed from the physical environments while the emergency state is in progress, since more precise information can be used by security and rescue teams, for operation management and improved strategic decisions.The Pis are responding to the growing demands from the public safety and emergency preparedness department within Ontario and Canada to design a robust and reliable wireless sensors infrastructure for critical monitoring of context aware physical environments and protecting our critical infrastructures.