Diagnostic powertracing for sensor node failure analysis

Troubleshooting unresponsive sensor nodes is a significant challenge in remote sensor network deployments. This paper introduces the tele-diagnostic powertracer, an in-situ troubleshooting tool that uses external power measurements to determine the internal health condition of an unresponsive host and the most likely cause of its failure. We developed our own low-cost power meter with low-bandwidth radio to report power measurements and findings, hence allowing remote (i.e., tele-) diagnosis. The tool was deployed and tested in a remote solar-powered sensing network for acoustic and visual environmental monitoring. It was shown to successfully distinguish between several categories of failures that cause unresponsive behavior including energy depletion, antenna damage, radio disconnection, system crashes, and anomalous reboots. It was also able to determine the internal health conditions of an unresponsive node, such as the presence or absence of sensing and data storage activities ...

• Type: Conference
• Year: 2010
• Where: IPSN
• Authors: Mohammad Maifi Hasan Khan, Hieu Khac Le, Michael LeMay, Paria Moinzadeh, Lili Wang, Yong Yang, Dong Kun Noh, Tarek F. Abdelzaher, Carl A. Gunter, Jiawei Han, Xin Jin
• Keywords: Internal Health Conditions, IPSN 2010, Power Measurements, Sensor Networks, Unresponsive