电子机电论文编号:JD183     字数:8934,页数:23

目  录
1引言 1
2 系统的总体设计 3
2.1 设计任务与要求  3
2.2 设计原理与参考电路  3
2.3 元器件清单  4
3 主要元器件介绍 5
3.1 AT89C51单片机 5
3.2 液晶显示LCD1602 7
3.2.1 LCD1602主要管脚介绍 8
3.2.2 LCD1602控制指令 9
4 系统的硬件构成  11
4.1 单片机水位主控模块  11
4.2 时钟日历显示模块  12
4.3 报警模块  13
4.4 按键模块 14
4.5 水泵/电动机 15
5 系统的软件设计  16
6 结束语  18
参考文献  19
致谢  20

摘要：论文设计主要是以单片机AT89C51为核心，通过单片机的可编程特点设计出智能化水塔控制系统，该系统具有水位报警和显示时间的功能。系统的设计由硬件和软件相结合组成，通过软件的处理使得系统电路更加简化，这样系统的性价比高，可维护性强，结构简单。该系统实现了当水位下降到一定位置时开始报警，同时电动机启动，系统自动抽水，水满停止抽水的功能。而报警信号不再是以前单一的嘟嘟声，代替的是优美的音乐。为了让系统更加完美，在此基础上设计了LCD显示的日历钟部分，通过LCD可以知道此时时间，而且具有定时的功能。

关键字：智能；AT89C51单片机；报警；LCD；日历钟

Abstract: This paper is primarily designed for the core SCM AT89C51 through programmable microcontroller design features towers intelligent control system, the system has revealed that the water level alarm and time functions. System design by integrating hardware and software components, the software makes the handling circuit system more streamlined, cost-effective this system, maintainability strong, and simple structure. Implementation of the system when the water level dropped to a certain location when the alarm, motor starting at the same time, the system automatically is pumping water full stop pumping function. The alarm signal is no longer a single before beeps instead of the beautiful music. To allow a more perfect system, based on this design of the LCD display calendar bell of the LCD can know through this time, but also the function of timing.

Keywords: intelligence; AT89C51 microcontroller; alarm; LCD; calendar bell