The cable tunnel is susceptible to damage of monitoring node due to airtight space

dense pipelines and complicated internal environment

leading to blind spots in emergency rescue work.Therefore

in this paper

the study status of present emergency monitoring system is studied and analyzed

a kind of emergency wireless monitoring system with optimized robustness of Mesh network architecture is proposed and designed

which has such characteristics as high reliability

self-organization and self-recovery.The design idea and overall framework of the monitoring system are described firstly;the effectiveness of the proposed link reconstruction strategy is verified by simulation.It is shown by the field communication test that the system can recover quickly in case of link mutation and has a strong network survival capability.