1、 I 摘 要 本文设计的控制器采用 STC89C52 单片机作为控制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 STC89C52、74LS377、DS18B20、ADC0809 等。在 软件设计方面，采用 c 语言编程，是由于其易于为单片机所识别，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
2、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：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 chip, uses the internal bus s
3、tructure, 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 control center all the time
4、. 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. This paper mainly discusses
