基于单片机的水温自动控制系统_毕业论文.doc

江苏大学京江学院本科毕业论文 PAGE \* MERGEFORMAT 2 PAGE \* MERGEFORMAT 2 基于单片机的水温自动控制系统 摘要 温度控制系统可以说是无所不在，热水器系统、空调系统、冰箱、电饭煲、电风扇等家电产品以至手持式高速高效的计算机和电子设备，均需要提供温度控制功能。 随着国民经济和国内工业的发展，人们需要对各种家用电器和工业设备的温度控制。采用单片机来对它们进行控制不仅具有控制简单、方便和灵活性的优点，而且可以大幅度提高被控温度的技术指标从而能够大大提高产品的质量和数量。目前的水温控制系统多采用由模拟温度传感器，多路模拟开关，A/D转换器及单片机等组成的传输系统。水温控制在工业及日常生活中应用广泛，分类较多。不同水温控制系统的控制方法也不尽相同。 本系统的设计可以用于热水器温度控制系统和饮水机等各种电器电路中。它以单片机AT80C51 关键词： 单片机、数码管显示、单总线、DS18B20. Automatic control system of temperature based on MCU Abstract Temperature control system can be said to be ubiquitous, water heaters, air conditioning systems, refrigerators, rice cookers, electric fans and other home appliances as well as high-speed and efficient hand-held computers and electronic equipment are required to provide temperature control. With the development of national economy and the people domestic industrial needs of various household appliances and industrial equipment temperature control by single chip microcomputer to control them not only has simple control, convenience and flexibility advantages and can greatly increase the temperature was charged with the technical indicators which can greatly enhance the quality and quantity. At present, the water temperature control system used by the analog temperature sensor analog transmission system switch A/D converter and microcontroller. Water temperature control method is used widely in industry classification more in daily life and different temperature control system are not the same. The system design can be used for drinking water heater temperature control systems and other electrical circuits. AT80C51 microcontroller as the core of it, through the three temperature digital display and 4 keys to achieve man-machine dialogue, the use of single-chip bus temperature conversion temperature DS18B20 real-time acquisition and through the digital display and offers a variety of operating light to indi