1、毕业设计毕业设计 基于AT89S51单片机的智能电热水器的设计 I 摘 要 本设计采用 ATEML 公司生产的 AT89S51 单片机为核心来设计智能电热水器。本 设计也对单片机控制电热水器实现智能化的可能性进行了分析，利用温度传感器、水 位检测装置、及模数转换器等来完成本设计。在硬件设计方面，主要对单片机最小系 统及其扩展、电源电路、键盘显示及接口电路、模数转换电路、水位及水温检测电路、 报警电路进行了详细介绍。还详细介绍了设计中应用到的主要芯片的性能和特点，包 括 AT89S51、74LS377、DS18B20、ADC0809 等。在软件设计方面，采用汇编语言编 程，是由于其易于为单片机所
2、识别，执行速度快。最后对软件调试进行了误差分析。 该智能电热水器设计完善，实现方案简单易行。采用软件设计来控制，可以实现 智能检测水位及水温，智能加热，并且提高了整机的可靠性及准确性。 关键词：单片机，控制，智能 II ABSTRACT As technology make a good progress, the applications of single-chip microcomputer become mature all the time. The single-chip microcomputer integrates the various components in a ch
3、ip, uses the internal bus structure, reduces the connection in different chips, enhanced greatly the reliability and anti-jamming capability. In the development of single-chip microcomputer, due to its excellent cost performance, high integration, small size, high reliability, it has been used as a
4、control center all the time. Since the birth of single-chip microcomputer, it began to walk into a humans life, such as washing machines, refrigerators, electronic toys, DMB, which equipped with the single-chip microcomputer, and improved their intelligence, ability. People, who used them, will love them better. The single-chip microcomputer makes humans life more convenient, comfortable and colorful. As a result, I use single-chip microcomputer to design intelligent electric water heaters.
