Underground structure monitoring with wireless sensor networks

ABSTRACT

Environment monitoring in coal mines is an important application of wireless sensor networks (WSNs) that has commercial potential. We discuss the design of a Structure-Aware Self-Adaptive WSN system, SASA. By regulating the mesh sensor network deployment and formulating a collaborative mechanism based on a regular beacon strategy, SASA is able to rapidly detect structure variations caused by underground collapses. A prototype is deployed with 27 Mica2 motes. We present our implementation experiences as well as the experimental results. To better evaluate the scalability and reliability of SASA, we also conduct a large-scale trace-driven simulation based on real data collected from the experiments.

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Index Terms

• Computer systems organization

  • Architectures

    • Distributed architectures

• Networks

  • Network architectures

  • Network types

    • Mobile networks

    • Wireless access networks