基于ZigBee技术的巢湖水质监测系统设计

Design of Chaohu Water Quality Monitoring System Based on ZigBee Technology

为了解决巢湖传统水质监测方法实时性差、效率低、成本高等问题,研究设计了一种基于ZigBee技术的巢湖水质监测系统。首先,分析了当前巢湖水质污染的重要因素,确立了pH值、温度、溶解氧作为水质优劣的特征,并给出了监测系统的整体结构。其次,结合各参数的特征,设计了相应的信号调理电路,推导出特征参数的计算公式。最后,根据各种节点的功能设计了以ZigBee协议栈为基础的软件流程,并采用浮标携带节点的方式进行了相关实验测试。实验结果表明,采用无线传感器网络的方式进行水质监测成本低、可靠性高,能满足水质监测的应用需求,同时可大范围进行实时监测。

In order to solve the problems of poor real-time performance,low efficiency and high cost of traditional water quality monitoring methods in Chaohu,a water quality monitoring system is designed based on ZigBee technology. Firstly,the paper analyzes the important factors of current water pollution in Chaohu;the characteristics of water quality,such as pH value,temperature and dissolved oxygen are established,and the overall structure of the monitoring system is given. Secondly,according to the characteristics of the parameters,the corresponding signal conditioning circuit is designed,and the formula for calculating the characteristic parameters is derived. Finally,according to the function of various nodes,the software flow based on the ZigBee protocol stack is designed,and the experiment is carried out by means of the way of carrying the nodes. The experimental results show that the method of wireless sensor network has low cost and high reliability,and can meet the application requirements of water quality monitoring.