It can monitor the accumulated water level and real-time rainfall, air quality, temperature and humidity, etc. of the low-lying sections of the urban area in real time, and realize automatic warning. With the help of this system, the municipal management department can grasp the waterlogging situation in the whole city as a whole and carry out drainage scheduling in time. Through this system, the traffic management department can obtain the real-time stagnant water level of each road section, and use radio, television and other media to provide travel guides for the general public, so as to prevent people and vehicles from entering the deep-water section or causing serious losses.