Due to the closed space of urban road tunnels, there are few external entrances and exits and dense traffic, the frequency of fires is high, and the temperature and smoke in the tunnel accumulate rapidly after a fire breaks out, which will make on-site evacuation and rescue work very difficult.<o></o>

This patented technology (Dynamic feedback tunnel fire intelligent evacuation and rescue system based on digital technology, Invention Patent No.: L201110007498.0) discloses a dynamic feedback tunnel fire intelligent evacuation and rescue system based on digital technology, which includes a fire information acquisition subsystem that analyzes and processes temperature data collected by a fire detection instrument and obtains fire information; a three-dimensional temperature smoke field reconstruction subsystem for establishing three-dimensional temperature smoke field information according to the temperature data and fire information; an emergency evacuation and rescue decision subsystem for analyzing and evaluating the fire development trend according to the real-time information provided by the fire information acquisition subsystem and the three-dimensional temperature smoke field reconstruction subsystem, and dynamically adjusting the evacuation and rescue plan; The digital virtual reality display subsystem is based on digital virtual reality technology to dynamically display fire information and temperature smoke fields in the tunnel, and supports real-time roaming of the fire tunnel. The invention is conducive to scientific decision-making of tunnel fire rescue, and overcomes many shortcomings such as fixation, framing, poor real-time and adaptability of existing tunnel fire plans.