NB-IOT based water quality monitoring system and operation method

The invention discloses a NB-IOT based water quality monitoring system. The system includes a cloud server, a mobile terminal provided with a client application, a PC client, an electronic screen monitoring center, a water situation early warning device and a monitoring terminal placed on a water surface buoy. Data communication between the cloud server and the mobile terminal and between the PC client and the water situation early warning device are realized by a wireless or wired mode. Data communication between the cloud server and the water quality monitoring terminal is realized by a NB-IOT communication module. Data communication between the water situation early warning device and the electronic screen monitoring center is realized by a wireless or wired mode. The NB-IOT based waterquality monitoring system can realize long-term water quality monitoring of surface water and real-time sorting, classification and statistics of water quality information and can automatically realize early warning and alar