基于单片的模拟智灌溉控制系统.docVIP

基于单片机的模拟智能灌溉控制系统 摘 要 随着农业生产水平的不断发展以及全球水资源的日趋紧张，世界各国都在积极探索行之有效的节水途径和措施。智能灌溉控制系统就是为了解决水资源不足、提高灌溉效率而发展起来的。本文研究的单片机智能灌溉控制系统，是对土壤的温湿度进行实时监控，参考实际温度值设定适宜的湿度下限值，并按照设定的湿度值进行相应的灌溉。 该智能灌溉控制系统以STC89C52单片机为核心，主要由温湿度传感器DHT11模块、按键输入模块、显示模块、水泵模块等组成；软件选用C语言编程。该系统的功能是：根据土壤湿度传感器检测到的土壤湿度，若检测到的土壤湿度值低于系统所设定的最低湿度值，系统则自动启动系统，进行灌溉。通过对硬件实物的测试，系统能够比较成功的实现目标功能。 【关键词】单片机；传感器；LED显示；水泵；灌溉 Simulator smart irrigation control system based on single chip microcomputer Abstract As?the level of agricultural production?and the continuous development of global?shortage of water resources,?countries in the world are actively exploring?effective ways and measures for water conservation.?Intelligent irrigation?control system in order to?solve the problem of water resources,improve the?efficiency of irrigation?and developed.?This paper?studies?theintelligent?irrigation control system,?temperature and humidity in the?soil?was monitored in real time,?refer to the actual?temperature?value setting?and humidity limit?appropriate?value,?according to the set?humidity value?for the corresponding?irrigation. The intelligent?irrigation control?system based on STC89C52?single chip microcomputer as the core,?mainly by the?temperature and humidity sensor DHT11?module,?key input module,?display module,?pump?module;?softwareused C?language programming.?The function of this system?is: according to thesoil moisture,?soil moisture?sensor to detect?soil?humidity,?if?the detected valueis lower than the?lowest?humidity?system?setting,?automatic starting ?system,irrigation.?By?physical?testing,?system can realize the?function of?relatively successful. 【Key words】 Single-chip Microcomputer；Sensor；LED Display；Water Pump； Lrrigation 目录 1 绪论 1 1.1课题研究背景 1 1.2课题研究的目的和意义 1 1.3 国内外现状 2 1.3.1国内研究现状 2 1.3.2国外研究现状 2 1.4 本文主要工作 3 2 系统总体设计 4 2.1系统功能要求 4 2.2系统总体设计方案 4 3 系统硬件设计 5 3.1 硬件电路总原理图 5 3.2 STC89C51单片机的硬件结构 5 3.2.1单片机的结构及信号引脚 6 3.3 电源供电模块 7 3.4 单片机控制模块 8 3.4.1单片机的最小系统 8 3.4.2 单片机控制的电路设计 8 3.5湿度采集模块 9 3.5.1温湿度传感器DHT