SGER: Event-triggered control over sensor/actuator wireless networks

目标：这项建议代表了一个研究工作的集成传感，计算和驱动无线网络。虽然目前无线网络研究的趋势集中在传感上，但下一步自然是考虑驱动，从而超越无线网络的“被动”角色，转向在网络内收集、处理和消费信息的“主动”角色。在通过无线网络执行致动时所面临的主要困难之一是恒定速率的数据需要从传感器流到致动器。由于通信是能源昂贵和网络节点有小电池，这种恒定速率的数据迅速耗尽现有的能源资源，并严重限制了应用程序的寿命。智力优点：这个项目探索了一种不同的范式来执行驱动在无线网络。在过去的30年里，控制工程中已经采用了周期性的方式来阅读传感器、计算反馈控制律和更新致动器，取而代之的是，信息被传输，致动器仅在必要时被更新。这种新的范例，称为事件触发控制，保证所需的控制性能水平，同时大大减少通信，从而能源utilization.Broader影响：所提出的事件触发的范例大大增加了应用程序的寿命，减少通信。因此，该项目将使几种不同类型的应用程序，目前阻碍了小能源储备的网络节点，如机械化农业灌溉，可重构工厂自动化，未来的暖通空调系统等，该项目还旨在让本科生参与所提出的技术的验证，从而有助于增加国内学生攻读研究生学位的科学和工程。

Objectives:This proposal represents a research effort towards the integration of sensing, computation and actuation over wireless networks. Although current trends in wireless network research focus on sensing, the natural next step is to consider actuation, thereby transcending the ``passive'' role of wireless networks towards an ``active'' role where information is collected, processed and consumed within the network. One of the major difficulties faced when performing actuation over wireless networks is that a constant rate of data needs to flow from sensors to actuators. As communication is energy expensive and network nodes have small batteries, this constant rate of data quickly depletes the existing energy resources and severely limits the life span of applications.Intellectual Merit:This project explores a different paradigm to perform actuation over wireless networks. Instead of reading the sensors, computing feedback control laws and updating the actuators in a periodic fashion, as it has been done in the past 30 years in control engineering, information is transmitted and actuators are updated only when necessary. This new paradigm, termed event-triggered control, guarantees desired levels of control performance while drastically reducing communication and thus energy utilization.Broader Impact:The proposed event-triggered paradigm greatly increases the life span of applications by reducing communication. Therefore, this project will enable several different kinds of applications, currently hampered by small energy reserves of network nodes, such as mechanized agricultural irrigation, reconfigurable factory automation, future HVAC systems, etc. The project also aims at involving undergraduate students in the validation of the proposed techniques thus contributing to increase the number of domestic students pursuing graduate degrees in science and engineering.