Design Of Flow Information Monitoring System In Bayannur River Basin Of The Yellow River

Water resources are vital to a country's economic development and nation security,so water resource and environment monitoring is particularly important.With the development of modern agriculture,the rational use of natural water resources for irrigation will be a current.A water resources monitoring system can not only save a lot of manpower and resources,but provide scientific support for agricultural irrigation.Different rivers have different emphases and detection methods.In the thesis,by studying a large number of domestic and foreign water resources monitoring systems,and visiting the bank of the Yellow River many times.An all-day monitoring system is designed based on STM32 as the core processing chip according to the field observation.The system integrates data acquisition,wireless transmission technology,optical transmission technology and cloud platform upload technology.Firstly,the background and significance of water resources monitoring system are expounded,and domestic and foreign research situation are introduced.Based on these,the overall framework of the system is formulated,and the detection index of the system is determined.The sensors are selected.Secondly,a scientific and reasonable transmission network is designed according to the system requirements.The whole transmission network is divided into two levels.The first level is ZigBee wireless transmission,and the second level is optic fiber transmission.At last,TCP/IP is used for information uploading to the Web server.Thirdly,the hardware system is designed according to the system requirements.Some key circuit diagrams are presented,including the ARM control system,LCD display circuit,the Web module circuit,etc.Fourthly,the software design is according to the completed hardware system.Detection of sensor data and communication of each module is realized.Complete the field debugging.Finally,the work of the whole thesis is summarized and discussed.