自动灌溉装置的设计.doc

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自动灌溉装置的设计

自动化专业电子课程设计报告 题 目: 自动灌溉装置的设计 姓名 钱倪友 谢伟杰 夏成毅 学号 0808020123 0808020154 0808020136 指 导 教 师: 贾 群 评阅成绩等次: 电气信息工程系 2010-2011 第二学期 目 录 设计的任务与要求·························································2 总体设计和系统框图·······················································2 设计方案·································································3 3.1 各单元模块功能介绍····················································3 3.1.1 最小系统 ························································3 3.1.2 传感器电路·······················································4 3.1.3 电磁阀驱动电路···················································5 3.1.4 显示电路·························································6 3.1.5 报警电路·························································6 系统仿真和调试···························································7 4.1 PROTEUS简介···························································7 4.2 系统仿真······························································7 4.3 程序清单······························································8 4.3.1 温湿度传感器程序·················································8 4.3.2 LCD显示程序······················································14 设计结果分析····························································16 5.1 系统实现功能·························································16 5.2 元器件清单···························································16 设计总结和体会··························································16 6.1 设计分工和总结·······················································16 6.2 总体总结·····························································17 参考文献································································18 1、设计的任务与要求 1主要研究单片机控制灌溉系统,分别对土壤湿度与灌溉控制技术及系统设备的软、硬件进行了研究。 2 根据自动灌溉系统装置特点,进行控制系统的整体研究和设计以及设备的选择(湿度传感器,单片机,A/D转换的选型设计,电磁阀),对输出信号进行处理,最后要进行必要的仿真。 2、总体设计和系统框图 通过土壤湿度传感器测出土壤的湿度,用A/D转换器将模拟信号转换成数字信号,数字信号一系列处理后传送到AT89C51单片机中,当信号达到要灌溉的标准后,给单片机输出一个开关量来

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