Scalable Decentralized Control over Ad Hoc Sensor Actuator Networks

对 Ad Hoc 传感器执行器网络的可扩展分散控制

• 批准号: 0400479
• 负责人: Michael Lemmon
• 金额: $ 21万
• 依托单位: University of Notre Dame
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-09-01 至 2008-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0400479&HistoricalAwards=false
• 关键词: Scalable; Decentralized; Control; over; Ad

Title: Scalable Decentralized Control over Ad Hoc Sensor-Actuator NetworksSummary: This project studies the extent to which ad hoc networks of sensors and actuatorsmay be used to implement large-scale feedback control systems. Dense ad hoc networks suffer fromsignificant capacity limitations that suggest scalability may only be achieved if we restrict ourselvesto localized network traffic patterns. Moreover, such sensor-actuator networks have a large numberof clients sharing the same communication channel, so that contention between different clients willgreatly reduce the amount of data that can be streamed between sensors and actuators. Maintain-ing specified levels of overall control system performance in such a non-deterministic environment isextremely challenging and we feel that it can only be achieved if we adopt a cross-layer approach inwhich application (i.e., control) algorithms and networking protocols are intimately aware of eachothers capabilities and limitations. This project investigates fundamental relationships betweencontrol system performance and network quality-of-service (QoS). The project will use these rela-tionships to develop decentralized control algorithms and supporting network middleware servicesthat can guarantee application (control) performance over extremely large ad hoc sensor-actuatornetworks. The intellectual merit of the proposed work lies in its precise characterization of theway in which network middleware impacts control system performance. The project will demon-strate these algorithms and services on a physical testbed in which a spatially-distributed physicalplant is controlled in a decentralized manner over an ad hoc radio (RF) network of embeddedprocessors.The project's broader impacts will be felt through its impact on undergraduate education atNotre Dame as well as through on-going collaborations with civil, environmental, and mechanicalengineering researchers both in and out of Notre Dame. In particular, the project's proposed testbedwill be tied to undergraduate courses in electrical and mechanical engineering, thereby providingstudents with a novel opportunity to contribute to an on-going research program. Moreover weare collaborating with civil/environmental engineers to develop sensor-actuator networks that canaddress the combined-sewer overfow (CSO) problem faced by a number of municipalities acrossthe Midwest and Eastern United States. The results from this project have the potential to reduceanticipated costs associated with solving the CSO problem. The results from this project willtherefore have a broad societal impact extending well beyond the immediate project objectives.

职务名称：可扩展的分散控制Ad Hoc传感器-执行器网络摘要：本项目研究在何种程度上ad hoc网络的传感器和actuatorsmay被用来实现大规模的反馈控制系统。密集的ad hoc网络受到显著的容量限制，这表明只有当我们将自己限制在本地化的网络流量模式时才能实现可扩展性。此外，这种传感器-执行器网络有大量的客户端共享相同的通信信道，因此不同客户端之间的竞争将大大减少传感器和执行器之间可以传输的数据量。在这样一个不确定的环境中保持特定水平的总体控制系统性能是非常具有挑战性的，我们认为只有采用跨层的方法才能实现，在这种方法中应用（即，控制）算法和联网协议密切地知道彼此的能力和限制。本计画探讨控制系统效能与网路服务品质之基本关系。该项目将使用这些关系来开发分散控制算法和支持网络中间件服务，可以保证应用程序（控制）性能在非常大的ad hoc传感器-执行器网络。所提出的工作的智力价值在于其精确的表征的方式，网络中间件影响控制系统的性能。该项目将在物理测试台上演示这些算法和服务，其中通过嵌入式处理器的自组织无线电（RF）网络以分散方式控制空间分布的物理工厂。该项目的更广泛影响将通过其对本科教育的影响以及与土木、环境、and mechanicalengineering机械researchers工程researchers研究者both都in and out of Notre圣母院.特别是，该项目的拟议试验台将与电气和机械工程的本科课程联系在一起，从而为学生提供一个新的机会，为正在进行的研究计划做出贡献。此外，我们正在与民用/环境工程师合作开发传感器-执行器网络，可以解决美国中西部和东部一些城市面临的联合下水道溢流（CSO）问题。该项目的结果有可能减少与解决CSO问题相关的预期成本。因此，该项目的结果将产生广泛的社会影响，远远超出项目的直接目标。