基于Zigbee和GPRS的水质监测系统节能设计

针对无线化的水产养殖水质监测系统耗能大、电池寿命短的问题,设计了基于Zigbee和GPRS的节能型水质监测系统。通过采用低功耗器件,在电源与传感器、信号调理电路之间添加选通芯片ADG1414控制各模块分时分区工作,减少各模块的供电时间来降低硬件能耗;通过设置阈值对采集的数据进行判断,对阈值范围内的数据不发送,减少数据发送量,从而减少系统数据发送能耗。以CC2530为核心构建无线传感网络,将传感器采集到的温度、p H、溶氧等水质参数传输至监测中心,构建实时监测平台,并在此基础上建立数据管理系统,实现对水产养殖水质环境的实时监测。系统测试与实验结果表明,该系统节能效果显著,能有效延长无线水质监测系统电池的工作时间。

Energy-saving design of water quality monitoring system based on Zigbee and GPRS

As to high energy loss and short battery life of wireless water quality monitoring system for aquaculture, energy-saving water quality monitoring system based on Zigbee and GPRS has been designed.Low power device is used to install gating chip ADG1414 between the power source and the sensor/signal processing circuit to control time-sharing and partitioned operation of each module, and reduce the power supply time of each module to reduce energy consumption of the hardware;a threshold is set to judge the collected data, and data within the range of threshold will not be sent, so that less data is sent and energy consumed by sending system data is reduced.Wireless sensor network centered on CC2530 is built to transmit the temperature, pH, dissolved oxygen and other water quality parameters collected by the sensor to the monitoring center, and real-time monitoring platform is built, based on which data management system is established to realize real-time monitoring of water quality environment for aquaculture.The results of system test and experiment show that the system can save energy effectively and extend the operation time of the battery for wireless water quality monitoring system effectively.