电子信息工程专业毕业论文(电热恒温控制系统)概述.doc

X X 大 学 毕 业 设 计（论文） 题 目： 姓 名： 学 号： 200714113 年 级： 20 级专 业： 电子信息工程指导教师： 完成日期： 20年05月日AT89S51单片机，配以DS18B20数字温度传感器，该温度传感器可自行设置温度上下限。单片机将检测到的温度信号与输入的温度上、下限进行比较，由此作出判断是否启动继电器以开启设备。 本设计还加入了常用的数码管显示及状态灯显示灯常用电路，使得整个设计更加完整，更加灵活。该设计已应用于花房、实验室，可对花房和实验室的温度进行智能监控。 关键字：恒温；控制系统；AT89C51单片机；DS18B20；设计 Abstract The temperature is constantly in the daily life of physical and temperature controls in various fields have a positive meaning. A lot of businesses have a lot of power heating equipment, such as that used for the heat treatment furnace, for melting metal crucible resistance heaters and the various uses of temperature bins, SCM using their right to control not only easy to control, simple, such as the characteristics of flexibility, but can also significantly increase the temperature was charged with the technical indicators, which can greatly enhance the quality of the products. Therefore, intelligent temperature control technology is being widely adopted,and it can bring more convenience in our daily life. The temperature was designed with the now popular AT89S51 SCM, and with DS18B20 digital temperature sensor, The temperature sensor can set up their own temperature collars. SCM will detect that the temperature of the input signal and temperature, the lower comparisons this judgment whether to activate the relay to open the equipment. The design also includes commonly used digital display and control state lights commonly used circuit, making the whole design more complete, more flexible. The design has been applied to someone like flower rooms and laboratory rooms, to someone intelligent temperature control like these fields. Keywords： Temperature keeping；Control systerm ;AT898C51 SCM;DS18B20;Design 目录 1 引言···················································· 1.1恒温控制控制系统设计的意义···························1 1.2恒温控制系统设计的背景·······························1 1.3恒温控制系统设计的目的·······························1 1.4恒温控制系统的功能···········