Abstract
The real-time temperature measurement system has a wide range of applications in the textile industry, forestry, chemistry, military and civilian depot, as well as meteorology and artificial climate simulation. The design is a small real-time temperature measurement system based on a digital temperature sensor DS18B20. The design temperature sensor used in this design is digital temperature sensor DS18B20. SCM AT89S51 is used to deal with the sensor signal processing. The detected real-time temperature is displayed by a digital transistor. The design is divided into five parts, including the power circuits, temperature-accumulation circuits, MCU control circuits and digital display circuits. The function of real-time temperature acquisition and display is achieved. The circuit design is uncomplicated, reliable and practical while the function of the design is a little bit simple. This design can be enhanced in the direction of a multi-point measurement of temperature, pre-settable alarm temperature, the upper-and-lower alarm line and so on.
Keywords: Real-time Temperature Measurement System, DS18B20,MCU
