文档介绍：高等教育自学考试本科毕业论文
题目
太阳能热水器自动系统设计
考生姓名: 准考证号:
专业层次: 本科院(系):
指导教师: 职称: 讲师
重庆科技学院
二OO九年十二月二十日
高等教育自学考试本科毕业论文
中文题名
太阳能热水器自动系统设计
考生姓名:
准考证号:
专业层次: 本科
指导教师:
院(系):机械与动力工程学院
重庆科技学院
二OO九年十二月二十日
摘要
目前,中国已成为世界上最大的太阳能热水器生产国,年产量约为世界各国之和。但是与之相配套的太阳能热水器控制系统却一直处在研究与开发阶段。市面上绝大多数的控制器结构简单,功能单一,智能化程度低下,用户界面不人性化,只具有温度和液位显示功能,不具有温度控制功能。即使热水器具有辅助加热功能,也可能由于加热时间不能控制而产生过烧,从而浪费电能。其次,大多数的太阳能热水器没有停电记忆功能,当停电时,测量仪无法保留用户预置的所有参数及时间,用户原定义的参数信息就会被还原成出厂设置,要恢复原有的设置就得重新设置参数,给用户带来了很多麻烦。
本设计详细介绍了基于单片机的太阳能热水器自动控制系统组成、硬件设计和软件设计。本文研究合适的控制方案对电热水暖温度进行控制,技术要求是调节时间短,超调量为零且稳态误差在±1℃内。指出了单片机设计的关键主要是能满足基本控制功能和容量,并考虑维护的方便性、,用成本低廉的电阻式传感器以及电极配以单片机技术对生产实际中的太阳能热水器的水温的控制以及水位的显示。
关键词:单片机;太阳能热水器;智能控制;温差跟踪循环;
Solar Water Heater Auto-System Design
ABSTRACT
At present, China has e the world's largest producer of solar water heater, annual production is about the bined. However, a matching control system for solar water heater has been in research and development stage. The vast majority of controllers on the market structure is simple, single function, intelligence level is low, the user interface is not humane, only has the temperature and liquid level display function does not have temperature control functions. Even if the water heater with auxiliary heating function, it may be due to the heating time control and produced a burning, thus wasting energy. Second, most of the solar water heater is not power failure memory function, when the power failure, the measuring instrument can not keep the user presets all of the parameters and time, A user-defined parameters of the original information will be restored to factory settings, to restore the original settings would have to re-set the parameters, giving users a lot of trouble.
Details of the design of microcontroller based automatic control system for solar water posed of hardware design and software design. In this paper, a suitable control program for electric heating temperature control, the technical requirements of