This product can automatically report the data of city's great hazards, classify and build the database, make statistical data analysis, identify the great hazard, evaluate and grade degree of hazards. It also can make a fast location inquire about all kinds of city's great hazards at urban space electronic map and offer intelligent auxiliary decision support to both urgent rescue to all kinds of serious accidents and command dispatch. 

　　This product can automatically declare and upload the data of great hazard to the database of the control center. Combining the networked geographical technology of information system (WEB GIS ), it can easily swiftly show the overall overview of geographical distribution of the great hazard vividly in the electronic map, and the information to deal with an emergency, meet an urgent need to command rescuing, such as the route and emergency preplan ,etc. after the accident happened. The system can automatically identify the data of great hazard declared and grade the degree of hazards. It also can offer relevant data and information to the leaders in the safety production and supervision departments of all levels, and offer intelligent auxiliary Decision Support System (DSS) for the thing that lead dynamic, scientific, prompt supervision to the city's great hazards.

　　The product system is made up of many subsystems, such as, the platform of declaring data of great hazard, the platform of controlling and managing great hazard, the platform of automatically identifying and grading great hazard, the platform of auxiliary decision support to urgent rescues, WEB GIS platform, the platform of system implement, and the platform of system management and maintain.