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本课程设计主要设计一个对冷却水温度进行实时检测系统,并且当温度超过指定温度(90摄氏度)时用LED报警。该系统以51系列单片机系统为核心,运用模拟温度电压传感器RV对冷却水温度进行检测;采集到的模拟信号经过RC低通滤波后由模数转换器ADC0832进行A/D转换把温度信号调解转换为数字信号。然后将数字信号传给AT89C51单片机,经单片机处理后由LCD实时显示温度值,如果温度超过指定温度(90摄氏度),则通过LED显示报警。本课程设计主要包括温度传感器模块、A/D转换模块、温度显示模块、报警提示模块。文中对每个部分功能、实现过程作了详细介绍。
This course design mainly designs a real-time detection system of the cooling water temperature, and uses the LED to report the alarm when the temperature exceeds the specified temperature (90 degrees Celsius). The system uses 51 series microcontroller system as the core, the use of analog temperature and pressure sensor RV to detect the cooling water temperature; the collected analog signal through the RC low-pass filter ADC0832 after A / D conversion of the temperature signal mediation conversion For digital signal. Then the digital signal to the AT89C51 microcontroller, the microcontroller by the LCD real-time display of temperature values, if the temperature exceeds the specified temperature (90 degrees Celsius), then the LED display alarm. The course design includes temperature sensor module, A / D conversion module, temperature display module, alarm prompt module. In this paper, each part of the function, the realization of the process made a detailed introduction.