【摘要】 系统采用数字输出温度传感器DHT11和具备低耗能、高性能的8位单片机——AT89S51以及高集成的LCD1206字符型液晶显示模块、蜂鸣报警器组成温度检测报警器,用户通过按键来设定一个目标温度值,系统检测出实际温度数值,经过噪声滤除处理,与预先设定的温度范围值进行模糊PID运算,并输出控制信号。软件部分包括主程序、显示模块子程序和测温度子程序。更多还原

【Abstract】 The system is combined with a calibrated digital output temperature sensor, DHT11, a low energy consumption, high-performance 8-bit microcontroller, AT89S51, a high integrated LCD1206 character LCD display module, and alarm buzzer. The user simply sets target temperature. The system detects the actual temperature value, which passesthrough the noise filtering, puts the target and actual temperature value involve fuzzy PID operation, and outputs control signal. The software part includes the main program, the display module subroutine and the temperature measurement subroutine.更多还原