Embedded Virtual Machines for Robust Wireless Control and Actuation

摘要: Embedded wireless networks have largely focused on open-loop sensing and monitoring. To address actuation in closed-loop control systems there is a strong need to re-think the communication architectures protocols for reliability, coordination control. As links, nodes topology of are inherently unreliable, such time-critical safety-critical applications require programming abstractions runtime where tasks assigned sensors, actuators controllers as single component rather than statically mapping set specific physical node at design time. this end, we introduce Virtual Machine (EVM), powerful flexible abstraction virtual components their properties maintained across boundaries. In context process discrete control, an EVM distributed system that dynamically selects primary-backup sets guarantee QoS given spatial temporal constraints underlying network. The architecture defines explicit mechanisms data fault within component. EVM-based algorithms new capabilities predictable outcomes provably minimal graceful degradation during sensor/actuator failure, adaptation mode changes optimization resource consumption. Through case studies demonstrate preliminary networks.