毕业设计（论文）-基于单片机的智能电热水器系统设计.docVIP

摘 要 随着社会经济的发展和生活水平的日益提高，人们对家居环境提出了越来越高的要求，安全、舒适、方便、快捷、人性化已成为新的追求目标，以往的洗浴方式已无法满足人们的需要。随着现代科技的飞速发展给各个领域带来了无限的发展空间，将计算机技术、网络信息技术和微电子技术应用于居家生活，产生各种热水器种类。 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；自动控制；智能开关 Abstract With the development of social economy and standard of living rise, people increasingly to household environment made more and more high demand, safe, comfortable, convenient, quick, humanized has become the new pursuit goal, in the past, the way that wash bath already cannot satisfy the needs of their people. Along with the rapid development of modern technology, to all fields brought infinite space for the development of computer technology, network, information technology and microelectronics technology applied to live a life, produce all sorts of water heater species. This design USES the ATEML company produces the AT89S51 as the core to design intelligent electric water heater. The design of single-chip microcomputer control and the possibility of electric water heater realize intelligent analyzed, using temperature sensors, water level detection equipment, and to complete the adc design. In terms of hardware design, mainly to the single chip minimize system and its extension, power supply circuit, keyboard display and interface circuits, analog conversion circuit, water level and water temperature detection circuit, alarm circuit was introduced in detail. Also introduces the main application to design characteristics and properties of the chip, including AT89S51, 74LS377, DS18B20 etc. In software design, use assembly language programming, is due to its easy to identify, execution by MCU fast speed. In the end the error analysis software debugging. This int