Liquefied natural gas filling wharf accident active early warning and auxiliary decision-making system

The invention relates to a liquefied natural gas filling wharf accident active early warning and auxiliary decision-making system, which provides active early warning and auxiliary emergency auxiliary decision-making for possible emergencies such as wharf dangerous chemical leakage, fire, explosion and water surface oil spill, and mainly comprises an emergency command module and a GIS auxiliary decision-making module, and finally, informatization management of basic data of daily hazard sources such as port major hazard sources, storage tanks, berths, dangerous goods and the like is realized. The emergency command module is mainly used for monitoring and early warning, an emergency resource library, an emergency plan library and an emergency disposal closed loop; the GIS auxiliary decision-making module is mainly used for GIS situation positioning, development situation plotting, risk prediction and analysis, a dangerous goods gas leakage diffusion prediction model, an overpressure explosion model and a fire