The Design of Multi-channel Temperature Acquisition and Control System Based on 51 MCU
Abstract:Along with the rapid development of modern information technology, temperature measuring and control system become more and more important in industrial, agriculture and daily life. Because of its great influence on people’s life, design and research of temperature acquisition and control system has a great significance. The purpose of this design is learning and understanding the development of embedded systems. It uses MCU as data process and control unit, and uses MCU to control digital temperature sensor which transmits data to MCU through single bus. It can send a signal to change the states of alarm and implementation module, current temperature is displayed by LCD. The system achieves multi-channel temperature signal acquisition and control. Temperature limit is set by keyboard. The buzzer and relay are controlled by MCU.
Key words:Embedded system, Multi-channel temperature acquisition, Driver circuit