Resource-efficient wireless monitoring based on mobile agent migration
Resource-efficient wireless monitoring based on mobile agent migration
复制标题
基于移动代理迁移的资源高效无线监控
DOI：
10.1117/12.880016
复制
发表时间：
2011
影响因子：
10.6
通讯作者：
M. König
中科院分区：
文献类型：
--
作者：
K. Smarsly;K. Law;M. König
无线传感器网络越来越多地应用于环境和结构监测等工程应用中。无线传感器网络被证明是低成本，易于安装和准确的，作为一个强大的替代传统的系留监测系统。然而，由于无线传感器节点的资源有限，关键问题是所收集的传感器数据的功耗传输和传感器节点的板载存储器的使用。本文提出了一种新的方法，对资源有效的无线传感器网络的基础上，多代理的范例。为了有效地利用有限的计算资源，软件代理嵌入在无线传感器节点。板载代理被设计为使用相对简单但资源有效的算法自主收集，分析和浓缩数据集。如果在观察到的结构系统中检测到（潜在的）异常，则板载代理明确请求专用软件代理。这些专门的代理物理地从连接的计算机系统或相邻节点迁移到相应的传感器节点，以便基于其固有的专家知识执行更复杂的损伤检测分析。设计并实现了一个基于多Agent技术和动态代码迁移的无线传感器网络结构健康监测原型系统。实验室测试进行了验证基于代理的无线结构健康监测系统的性能，并验证其自主损伤检测能力。
Wireless sensor networks are increasingly adopted in many engineering applications such as environmental and structural monitoring. Having proven to be low-cost, easy to install and accurate, wireless sensor networks serve as a powerful alternative to traditional tethered monitoring systems. However, due to the limited resources of a wireless sensor node, critical problems are the power-consuming transmission of the collected sensor data and the usage of onboard memory of the sensor nodes. This paper presents a new approach towards resource-efficient wireless sensor networks based on a multi-agent paradigm. In order to efficiently use the restricted computing resources, software agents are embedded in the wireless sensor nodes. On-board agents are designed to autonomously collect, analyze and condense the data sets using relatively simple yet resource-efficient algorithms. If having detected (potential) anomalies in the observed structural system, the on-board agents explicitly request specialized software agents. These specialized agents physically migrate from connected computer systems, or adjacent nodes, to the respective sensor node in order to perform more complex damage detection analyses based on their inherent expert knowledge. A prototype system is designed and implemented, deploying multi-agent technology and dynamic code migration, in a wireless sensor network for structural health monitoring. Laboratory tests are conducted to validate the performance of the agent-based wireless structural health monitoring system and to verify its autonomous damage detection capabilities.