智能盆栽系统毕业设计论文

摘要

随着人们开始逐渐注重家庭环境的绿化问题，很多人都会选择在家里种植一些盆栽，一方面可以美化家中的环境，另一方面可以净化家中的空气。但传统的盆栽养护方式存在操作不方便，难于控制浇水、环境温度和适当光照等弊端，严重制约了植物的健康生长。

本文在对智能盆栽控制技术研究的基础上，论述了系统的的硬软件设计等问题。系统以STC89C52单片机为主控制器，采用YL-69土壤湿度传感器、DS18B20数字温度传感器和光敏电阻检测盆栽植物周围的土壤湿度、环境温度和光照强度。硬件电路由数据采集电路、A/D转换电路、外设（键盘、显示器等）接口电路、输出控制电路等组成。并用C语言对系统进行软件编程，提出了实施方案：利用YL-69等多个传感器，将采集到的盆栽植物周围环境变量传送到单片机，将检测到的数据与设定范围进行对比，对是否经行灌溉、降温、补光做出判断，使盆栽植物始终保持在最佳的生长状态。

经系统仿真及实物测试表明，系统可以实现对盆栽植物的自动化灌溉、降温和补光，且运行稳定，功能完善。系统在家庭盆栽种植和名贵花卉、珍稀药材的盆栽种植领域都拥有广泛的应用推广前景。

关键词：盆栽；单片机；自动控制；土壤湿度；环境温度；光照强度

Abstract

As people begin to pay more attention to the greening of the family environment, many people will choose to plant some potted plants at home. On the one hand, they can beautify the environment in the home, and on the other hand, they can purify the air in the home. However, traditional pot conservation methods have inconvenient operation, difficulty in controlling watering, ambient temperature and proper lighting, and serious limitations to the healthy growth of plants.

Based on the research of intelligent pot plant control technology, this paper discusses the system's hardware and software design and other issues. The system uses the STC89C52 microcontroller as the main controller, and uses YL-69 soil moisture sensor, DS18B20 digital temperature sensor and photosensitive resistance to measure the soil moisture, temperature and light intensity around the potted plants. The hardware circuit is composed of a data acquisition circuit, an A/D conversion circuit, peripheral circuits (keyboards, monitors, etc.), and an output control circuit. And use C language to carry on the software programming to the system, has put forward the implementation plan: Utilizes YL-69 and so on many sensors, will gather the potted plant ambient environment parameter to the monolithic integrated circuit, will compare the detected data with the setting scope, whether Irrigation, cooling, and light supplements are used to make judgments so that potted plants are always kept in the best state of growth.

The system simulation and physical tests show that the system can realize automatic irrigation, cooling and fill light for potted plants with stable operation and perfect functions. The system has a wide range of application and promotion prospects in the pot cultivation of home potted plants and potted plants of rare flowers and rare herbs.

Keywords: potted plant,single chip microcomputer,automatic control,soil moisture, temperature,light intens

目录

第一章绪论 (1)

1.1 选题的目的和意义 (1)

1.1.1 选题目的 (1)

1.1.2 选题意义 (1)

1.2 研究现状与发展趋势 (2)

1.2.1国外发展现状 (2)

1.2.2 国内发展现状 (3)

1.3 发展趋势 (3)

1.4 研究目标 (4)

第二章系统总体设计 (5)

2.1 系统总体设计方案 (5)

2.2 系统功能 (5)

2.3 元器件选择 (6)

第三章系统硬件电路设计 (7)

3.1 微处理器STC89C52最小系统电路 (7)

3.1.1 STC89C52简介 (7)

3.1.2 时钟电路设计 (8)

3.1.3 复位电路设计 (9)

3.2 A/D 转换芯片ADC0832接口电路 (9)

3.2.1ADC0832简介 (9)

3.2.2 ADC0832接口电路 (11)

3.3 LCD1602显示接口电路 (11)

3.3.1 LCD1602简介 (11)

3.3.2 LCD1602接口电路 (12)

3.4 键盘接口电路 (13)

3.5 声光报警电路 (14)

3.6 数据采集电路 (14)

3.6.1 土壤湿度传感器 (14)

3.6.2 光电传感器 (16)

3.6.3 温度传感器 (17)

3.7 输出驱动电路 (19)

3.8 电源电路 (21)

第四章系统软件程序设计 (23)

4.1 系统软件程序总体设计方案 (23)