Abstract
With the development of science and technology, temperature becomes a very important part and general measurement parameter in the production process of industry and agriculture. No matter the measurement of temperature is very important in life or on industry. The temperature controller is widely used to in every profession and trade, the kinds of the temperature controller increases day by day.
This graduation project topic is the temperature survey system with the MCU. It is a temperature controller taking AT89C51 one-chip computer as the core to originally design, adopt a gleam of type digital temperature sensor DS18B20 of high accuracy to carry on real-time accurate measurement to temperature, last operation let one-chip computer, can measure range of as-55 degrees + 125 degrees, examine there aren't resolution ratio not warm. Report to the police as the ranges examined of temperature. Explaining the operation principle of DS18B20 especially, the interface between one-chip computer and DS18B20, should adopt the one-chip computer to combine with digital temperature sensor DS18B20 systematically, can pass the control system to the regulation which is examined temperature and report to the police to ultra limit temperature.
Keywords：MCU Temperature control Sensor
