本次设计的是一种温控自动风扇系统,是为了让风扇这普通的电器更加的智能化,同时整个系统具有灵敏的温度检测和显示功能
This design is a kind of automatic temperature control fan system is to allow the fans more of the ordinary intelligent appliances,while the system is sensitive to temperature detection and display functions
它是以STC89C52RC单片机作为一个控制核心,通过温度传感器DS18B20对外部环境温度进行数据采集,然后通过单片机将分析和处理后的数据送入到lcd液晶显示器,经过液晶显示器显示出温度和驱动电路来驱动风扇的运转
It uses STC89C52RC microcontroller as a control center,through the temperature sensor the temperature of the external environment DS18B20 data acquisition,and then through the microcontroller will be analyzed and processed data sent to the lcd liquid crystal display,after the temperature and the liquid crystal display driver circuit to drive fan operation
同时也能够设定温度的上下限值,能使风扇的转速随外部环境温度的变化而自动调节转速,实现“温度高,风力大,温度低,风力弱”的特点,该系统性能稳定,控制准确.
it is also able to set upper and lower temperature limits,can the fan speed with the external environment temperature and automatically adjust the speed,to achieve "high temperature,wind,low temperature,the wind is weak," the characteristics of the system is stable,control accurate.
[关键词] 单片机；温度传感器；风扇
[Key words] SCM; temperature sensor; fan