The Design of a Wireless Sensor Network for Seismic-Observation-Environment Surveillance

Based on the characteristics of seismic observation tunnel and the requirements of underground seismic observation environment monitoring, this paper proposed a hierarchical tunnel-environment surveillance system, namely HTS. The HTS system can monitor humidity and achieve reliable bidirectional communication. The HTS system incorporates two measures designed to account for the sampling, data processing and communication bottlenecks of the sensor nodes (i) zone-based adaptive data collecting algorithm which exploits spatial redundancy of sampling readings to increase the effective sample processing rate, and (ii) adaptive sleep/wakeup mechanism which exploits the temporal correlation of sampling readings to further save energy consumption of unnecessary overhearing. HTS system can achieve better flexibility, correctness, longer lifetime, and adaptability to underground seismic observation tunnels compared with existing systems.

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