Design And Realization Of Groundwater Environmental Monitoring System In Lanzhou New Area

Water is the source of life,which is one of the indispensable material resources for human survival and development.However,with the development of the social economy,the large amount of sewage discharged by people in production and life leads to increasingly serious pollution of the water environment,which directly affected People's Daily life.So monitoring the water environment is particularly important.Nowadays,our country has invested a lot of manpower,material and financial resources to establish water quality monitoring stations in major areas of the country,and these monitoring sites have formed a rigorous and intensive automatic water quality monitoring system.However,in the northwest region of China,there are few water quality monitoring stations,and the existing water quality monitoring site density is not satisfactory.In particular,there is still a certain gap in the construction work of Lanzhou New District,the fifth New District of China.At the same time,it is often ignored for the prediction of the water quality change trend in the water environmental monitoring in China.If we can predict the future trend of water quality changes based on the collected water environment parameter information,we can greatly reduce the impact of water environmental pollution on people's life and production.Based on the deep analysis of the water environmental monitoring and water environmental prediction at home and abroad,this thesis proposes an implementation scheme which based on Groundwater environmental monitoring system in Lanzhou New Area,its main composition is as follows:(1)In terms of data collection,solar panels are mainly used as the power supply way,the STM32 Series MCU is the core controller and different signal sensors are data acquisition device,Finally,the collected water quality data are transmitted to the monitoring and management center.(2)In terms of data transmission,it adopts GPRS as the data transmission platform and writes the data transmission program based on GPRS network communication.(3)In terms of data storage,the monitoring management center and monitoring front-end use My SQL database and SD card to store the collected water quality data respectively.so as to achieve data complementarity between two databases,which to a certain extent also greatly improves the reliability of the whole monitoring system.(4)In terms of data prediction,the neural network is used to predict the water quality,and the basic principle,design and implementation of BP neural network are specifically described.(5)In terms of data query,it mainly accesses the groundwater environmental data in remote database through the client software,and presents the groundwater data information to the user in a list or graphical way on the user interface.With the increasing importance of groundwater environment,government departments at all levels are stepping up efforts to establish a real-time water quality monitoring system.At present,the project has been designed and completed on the basis of the support of Lanzhou municipal science and technology bureau,and the monitoring system has been tested.The results show that the design of the monitoring system meets the expected requirements of this project.It is believed that with the improvement of the monitoring system,this project will make a contribution to the groundwater environment monitoring in Lanzhou New District.