Research On River Monitoring Management System Based On Internet Of Things

With the rapid development of China's economy,environmental problems have become increasingly serious.Among them,the water quality of rivers,lakes and oceans has been polluted to varying degrees,which has seriously affected people's daily life and further development of various industries.To this end,a complete water quality monitoring system is designed to protect the current water environment quality.Based on the Shanghai Jinshan District Cooperation Project “Development of Intelligent Decision-Making Function of Modern Agricultural Internet of Things Platform”,a water quality monitoring and management system based on the Internet of Things was developed for the current water quality monitoring of major rivers in Jinshan District.Under the premise of basic data monitoring function,the system uses K-means algorithm to realize scientific optimization of water quality monitoring points,and evaluates the results of auxiliary sensor monitoring based on AlexNet water quality image classification.The whole system uses a new design buoy as the carrier data acquisition system,using STM32 as the main control chip,which is responsible for sensor data acquisition and data transmission and storage.The sensor includes PH,dissolved oxygen and temperature sensor,all of which are RS485 protocol.After reading the data through a specific protocol,the serial port is sent to the chip.After receiving the data,the chip saves the data to the SD card and sends the data to the background server through the 4G module.The buoy status data,water quality data and location information can be remotely viewed through the shore-based system host computer.At the same time,this paper innovatively adopts K-means clustering algorithm for river water quality monitoring points,which can effectively solve the problem of optimal placement of water quality monitoring points,with clear principles,simple calculation process and accurate and intuitive results.Monitoring points appear to be more scientific and rational.After the system hardware is set up,this paper develops a web page based on a web browser and directly accesses a specific server according to the specified domain name.Finally,the required database is built in the server,and the software program is written in the PHP language,and finally the webpage can be browsed anytime and anywhere.Solar power supply is used in the system test part to complete data collection,data storage,data transmission and data processing.Finally,the buoy was placed in the river channel of the Hengshan River in Jinshan District,and the water quality standard test equipment was used as a comparison.Continuously collect 100 h data,the data transmission interval is 20 min,the tested data loss rate is less than 0.5%,meet the error requirements compared with the standard collection equipment,and the whole system is in good running condition,which can realize automatic monitoring of water quality and meet the expected design requirements.Certain practical application value...