摘要
本文设计了一种基于ARM的温度控制系统。此系统由STM32F103C8T6微控制器及其外围电路组成,采用K型热电偶作温度传感器,通过信号处理电路之后由SPI总线将测量温度值传送到四位数码管进行实时显示。处理器还可利用PID算法改变定时器输出的PWM脉冲的占空比来调节继电器的关断,从而达到实时控制加热电路温度的目的。此系统具有成本低、体积小、精度高、反应快和处理能力强等特点,具有一定的使用范围。
A temperature control system based on ARM is introduced in this paper, it includes microprocessor STM32F103CST6 and its peripheral circuit. Using the K thermocouple as temperature sensor, sends the measured temperature signal through the SPI bus to four-bit digital tube to display timely. In order to achieve real-time control of temperature of the heating circuit, this system designs a PID controller which adjusts PWM empty to change the turn on and off time of the relay. Due to its low cost, small volume, high accuracy, fast response, strong processing ability and so on, this system has been widely used in concerned industries.
出处
《自动化技术与应用》
2013年第2期79-82,86,共5页
Techniques of Automation and Applications
