Sandwich Node Architecture for Task Preemption in Wireless Sensor Networks for Structural Health Monitoring Applications

被引：0
作者：
Wang, Z. [1 ]
Pakzad, S. N.
Cheng, L. [1 ]
机构：
[1] Lehigh Univ, Dept Comp Sci & Engn, Bethlehem, PA 18015 USA
来源：
STRUCTURAL HEALTH MONITORING 2011: CONDITION-BASED MAINTENANCE AND INTELLIGENT STRUCTURES, VOL 2 | 2013年
关键词：
SYSTEM; DESIGN;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In recent years, several hardware platforms of wireless sensor networks (WSN) have been developed and used for structural monitoring applications [1,2]. A typical design of a node includes a sensor board and a mote connected to it. Sensing units, analog filters and analog-to-digital converters (ADCs) are integrated on the sensor board and the mote consists of a microcontroller and a wireless transceiver. A WSN system based on this node lacks the capability of interrupting its scheduled task to start a higher priority task. This shortcoming is rooted in the hardware architecture of the node. The proposed sandwich-node architecture is designed to remedy the shortcomings of the existing one for task preemption. A prototype has been implemented using Imote2 and verified by an emulation in which one mote is triggered by a remote base station and then preempts the running task at the other mote for handling an emergency event.
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页码：2099 / 2106
页数：8
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