Design and simulation of tunnel real-time monitoring system based on multivariate information fusion

In view of the low efficiency of tunnel fire rescue, the difficulty of operation and the difficulty of determining the kindling point, a real-time monitoring system based on multi-sensor devices for smoke, temperature and video is designed based on the restricted fire development law in tunnel and the smoke movement process. Then the target tunnel is modeled and the fire monitoring conditions under different combustion conditions inside the tunnel are simulated using FDS software. Finally, the situation evaluation of tunnel fire is given by analyzing the temperature, toxic gas concentration and the distribution and development law of fire smoke inside the tunnel monitoring system.