手机短信远程控制灌溉系统

针对滴灌系统中水肥远程自动化和智能化灌溉控制的需求,基于移动通信网络的SMS(Short Messaging Service)机制,设计并开发了一种手机短信远程控制灌溉系统.该系统利用短信文本分词、频次计算及主题抽取算法对所接收的远程控制信息进行处理,生成终端设备所需的二进制命令来实施灌溉控制或状态查询；系统将待反馈信息进行适合SMS机制的数据转换并处理成PDU(Protocol Data Unit)串,通过移动通信网络经无线数传模块传送至客户服务端,实现现场执行状态或系统查询结果的显示；该系统具有一定的自学习及再学习能力.在陕西省西安市长安区现代农业示范园区的应用实验结果表明,该系统稳定性高,操作简单方便,可以大大节约用人成本,易于大面积推广应用.

An Irrigation System with Short Message Remote Control

An automatic irrigation system with short message remote control is proposed to consider the requirement for automatic and intelligent irrigation remote control of the water and fertilizer in the drip irrigation system.The proposed system bases on SMS(Short Messaging Service) of the mobile communication network,and takes advantage of the message content dividing algorithm,frequency calculation and the subject extraction algorithm to process the remote control information received.Then binary commands for terminal units are generated by the system to perform irrigation controlling or state inquiry.The information to be fed back is firstly processed into PDU strings that conform to the format of SMS,and then transmitted to the user by a wireless transmission module through mobile communication network to display both the executing state in the field and the query results of the system.Moreover,this system has some certain self-learning and re-learning abilities.Its practical application in the agricultural demonstration fields in Chang An region of Xi’an in Shannxi Province shows that this system is suitable for applications in large acreage with its steadiness in running,convenience in operation and low cost in use.