基于单片机的电热水器控制器设计.doc

专业资料参考首选摘要本文的电热水器控制器设计采用了 AT89 S51单片机作来设计的。本设计利用温度传感器及模数转换器等来完成。在硬件设计方面,主要对电源电路、单片机最小系统及其扩展、模数转换电路、键盘显示及接口电路、水温检测电路、报警电路进行了简明的介绍。而且还介绍了该设计中应用到的主要芯片的性能和特点,包括 AT89S51 、 74LS377 、 DS18B20 等。在软件设计方面,采用汇编语言编程。然后对软件调试进行了误差分析。该电热水器设计完善,实现方案简单易行。采用软件设计来控制,可以实现检测水温,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,电热水器,设计专业资料参考首选 ABSTRACT In this paper, the design of electric water heater controller uses AT89S51 MCU to design of temperature sensor and analog to digital converter the aspect of hardware design, mainly on power supply circuit, MCU minimum system and its expansion, modulus conversion circuit, keyboard display and interface circuit, temperature detection circuit, alarm circuit are introduced in also introduces the performance and characteristics of the main chip to the application in the design, including AT89S51, 74LS377, DS18B20 etc.. In the software design, the assembly language is then error analysis of software debugging. The electric water heater is designed and perfected, and the realization scheme is simple and software design to control and temperature detection can be achieved, intelligent heating and improve the reliability and accuracy of the whole. Keywords: single - chip puter, electric water heater, design 专业资料参考首选目录引言……………………………………………………………………………………… 1 第1章绪论…………………………………………………………………………… 2 课题的背景……………………………………………………………………… 2 课题研究的目的及意义………………………………………………………… 2 国内外的研究情况和成果……………………………………………………… 3 第2章电热水器的设计方案…………………………………………………· ·4 设计要求………………………………………………………………………… 4 方案设计………………………………………………………………………… 4 第3章电热水器的硬件系统设计……………………………………………… 6 方案验证………………………………………………………………………… 6 硬件系统设计…………………………………………………………………… 9 电源电路………………………………………………………………… 9 显示/键盘接口电路…………………………………………………… 9 报警电路………………………………………………………………… 11 模数转换电路…………………………………………………………… 12 温度检测电路…………………………………………………………· · 时钟电路………………………………………………………………… 16 显示模块………………………………………………………………… 17 AT89S51 功能及特性介绍……