Design And Implementation Of Remote Acquisition System For Water Quality Information Based On LoRa

Water is the source of life,and clean water is especially important for human health.However,in recent years,with the rapid development of China's industrialization process,the problem of water pollution has become more and more prominent,and many places have reached a level that seriously affects human health.Therefore,the prevention and control of water pollution is imminent.Based on this background,the paper developed a LoRa-based water quality information remote acquisition system,which aims to obtain water quality information remotely and conveniently,and improve the efficiency of water pollution prevention and control.In order to achieve this goal,the paper designs and implements a remote water quality information acquisition system based on a long-distance,low-cost LoRa communication technology.The system includes three modules: a water quality information transmission gateway,a water quality information receiving service end,and a water quality information web end.The gateway consists of Raspberry Pi,SX1278 LoRa module and GPRS module.The background server includes the data receiving server using Java NIO technology and Web terminal which is based on Vue.js framework and SpringBoot framework.The main research contents of the paper are as follows:(1)Complete the software and hardware design of the gateway to realize the water quality information collection from the gateway to the terminal and the water quality information forwarding function to the background server.The Raspberry Pi 2B is used as a development platform,combined with the Lo Ra module and the GPRS module to complete the hardware construction of the gateway.Study the principles of Lo Ra technology,develop Lo Ra wireless communication protocol,and realize the networking function of gateway and collection terminal.Study the working principle of the GPRS module SIM900 A,formulate the GPRS communication protocol,and realize the function of the gateway to forward the water quality data to the server.(2)Complete the design and implementation of the system server.It includes the design and implementation of water quality data receiving server based on Java NIO technology and the design and implementation of web side.The web side implements the query of water quality information and the addition,deletion and change of gateway information.Finally,the functional test of the system related modules is completed.The paper completed the design and implementation of the gateway and server,and completed the testing of related functions,effectively improving the efficiency of remote collection of water quality information and promoting the process of water environmental protection.