基于LoRa技术的巢湖水质监测系统设计

Chaohu Lake water quality monitoring system based on LoRa technology

应用LoRa无线通信组网技术,搭建了巢湖水质监测系统。根据巢湖水域特点,设计了星形组网结构,确定了监测系统整体框架。以温度、溶解氧DO、浊度TU及pH值为水质特征参数,组建了电源电路和数据采集电路,根据水质监测要求设计了终端节点软件流程、集中器节点软件流程及云监测平台,并进行了应用实验。实验表明,该系统性能可靠、运行稳定,无线传输距离半径不低于1km,可以对巢湖水域进行大范围水质监测,具有实际应用价值。

This paper uses LoRa wireless communication networking technology to build Chaohu Lake water quality monitoring system.Firstly,according to the characteristics of Chaohu Lake,the star network structure is designed,and the overall framework of the monitoring system is determined.Secondly,with the temperature,dissolved oxygen(DO),turbidity(Tu) and pH value as the characteristic parameters of water quality,the power supply circuit and data acquisition circuit are established.Finally,according to the requirements of water quality monitoring,the software flow of terminal node,concentrator node and cloud monitoring platform are designed,and the application experiments are carried out.Experiments show that the system has reliable performance and stable operation,and the wireless transmission distance radius is no less than 1 km.It can monitor the water quality of Chaohu Lake in a wide range,and has practical application value.