基于PLC和GPRS模块的山地智能灌溉系统设计  

Design of mountainous intelligent irrigation system based on PLC and GPRS module

作　　者：李宜汀 卢剑锋[1] 杨肖委 潘振[1] 

机构地区：[1]贵州大学机械工程学院,贵州贵阳550000

出　　处：《现代机械》2016年第1期52-54,共3页Modern Machinery

摘　　要：智能灌溉技术大幅缩减了人力、物力资源,提高了灌溉效率及精确度[1]。但山地环境普遍恶劣,不利于上位机布线及工作站点的设置。为此提出了一种远程控制[2]灌溉电磁阀门并监测传感器数值的方法。该设备采用GPRS无线模块与西门子PLC S7-200 224xp经RS485协议连接,利用组态软件通过配置OPC在电脑上或直接发送手机短信进行无线控制PLC并读出PLC模拟量模块EM231的土壤湿度,水压,水流量以供相关人员随时判断灌溉与否[3]。此方法从根本上解决了环境因素对实际工程的影响,并且结构简单,成本较低,操作方便,适合广大山地丘陵地区的中小灌溉区域推广。Intelligent irrigation technology has greatly reduced human and material resources,greatly improving the efficiency and accuracy of irrigation. But some mountain environment is generally complicated so that it is not easy to set the upper monitor＇s wiring and work site. In this paper,a method is proposed for the remote control of the electromagnetic valve and the monitoring of the sensor. The equipment adopts GPRS wireless module and Siemens S7- 200 PLC 224. By linking with the agreement of the RS485 connection and using configuration software to deploy OPC,the PLC can be wirelessly controlled on computers or through sending text messages with mobile phones. Thus we can read the PLC analog module EM231 for such information as soil moisture,water pressure,water flow so as to decide whether irrigation is necessary or not. This method effectively solves the influence of environmental factors on practical operation. With its simple structure,low cost and convenient operation,it is suitable for small and medium irrigation areas in mountainous and hilly areas.

关 键 词：智能灌溉 山地环境 PLC 无线控制 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]