太阳能热水器自动控制系统
绪论
太阳能热水器已经进入千家万户，太阳能热水器给人们的生活或工作提供了很大的便利，但是还存在着很大的不足。比如夜间用水，太阳能即便有很强的保温设备，但收到外接温差的影响，内部温度还是会下降。如何实现热水的实时供给，成为一个研究的方向。本课题根据上述问题，提出解决方案，重在研究自动加热系统，完善太阳能热水器的功能，提高使用性。
本设计使用STC89C52系列单片机作为主节制模块,实现太阳能自动控制系统设计，该系统由八个基本模块组成，实现对太阳能水箱水位、温度的实时检测并报警，通过按键调整时间设置，切换夜间自动加热和手动加热等多种功能。本设计进行了proteus仿真，验证可行之后，通过软件绘制电路原理图，然后根据电气路焊接实物，在实物上完成所有预期功能。
关键词：单片机 太阳能 自动控制 软件仿真
ABSTRACT
The design is designed based on STC89C52 microcontroller to control the smart car automatic tracing system is easy to use, which covers the design of modules and software of automatic tracing smart car hardware on the main part. The smart car automatic tracing system is based on C52 microcontroller based controller core, then the four road to pavement of injection tube of infrared detection system to detect the track, then the signal detected by the real-time feedback transmission for C52 mcu. C52 microcontroller receives the detection signal, compares the relative software according to internal procedures,
obtained through the analysis results to control the drive motor running, driving direction which drives rotation control to control the wheels of the car car, allowing the car to travel to their own along the track laying. In this way, the automatic tracing smart car is basically can be completed along the self laying automatic tracing on the track to run.
Keywords: STC89C52， Infrared system，Direct-current machine，Auto-tracking
目 录
1概述 .............................................................................................................................................................. 4
1.1本课题的研究意义 .......................................................................................................................... 4 1.2本课题研究的应用前景与国内外进展 .......................................................................................... 4
1.2.1国内wai进展及应用前景 .................................................................................................. 4 1.2.2本论文的研究目标与研究内容 .................................................................................................. 4 2 系统总体设计 ............................................................................................................................................. 4
2.1 系统设计规划 ................................................................................................................................. 4 2.2模块方案论证 .................................................................................................................................. 5 3 硬件设计 ..................................................................................................................................................... 6
3.1传感器检测模块 .............................................................................................................................. 6
3.1.1液位传感器原理与应用 ...................................................................................................... 6 3.1.2水温传感器检测模块 .......................................................................................................... 7 3.2液晶显示模块 .................................................................................................................................. 8 3.3单片机 .............................................................................................................................................. 8
3.3.1单片机晶振模块 .................................................................................................................. 9 3.3.2单片机复位模块 .................................................................................................................. 9 3.3.3单片机P0口上拉电阻 ........................................................................................................ 9 3.3.4最小系统原理图 ................................................................................................................ 10 3.4时钟模块 ........................................................................................................................................ 10 3.5光耦继电器模块 ............................................................................................................................ 11
3.6电源模块 ........................................................................................................................................ 11 3.7按键模块 ........................................................................................................................................ 12 4 软件设计 ................................................................................................................................................... 13
4.1软件架构图 .................................................................................................................................... 13 4.2系统设计总流程图 ........................................................................................................................ 13 4.3水位检测软件设计 ........................................................................................................................ 14 4.4液晶显示软件设计 ........................................................................................................................ 15 4.5温度传感器软件设计 .................................................................................................................... 16 4.6时钟模块软件设计 ........................................................................................................................ 17 4.7按键扫描软件设计 ........................................................................................................................ 18 5测试和分析 ................................................................................................................................................ 19
5.1测试 ................................................................................................................................................ 19 5.2性能分析 ........................................................................................................................................ 20 总 结 ............................................................................................................................................................. 20 致 谢 ............................................................................................................................................................. 21 参考文献 ....................................................................................................................................................... 22
太阳能热水器自动控制系统毕业设计
