Design of Cherry Greenhouse Temperature Control System Based on CAN Bus

摘要

The application of CAN bus in the greenhouse temperature control in cherry is introduced. The design of STM32 based controller, two wire Pt100 temperature acquisition thermistor bridge measurement circuit through the output differential signal, amplifying the information by differential amplifier LM324, through the CAN bus transmission of analog signal, digital temperature the information through the STM32 comes with the A/D module. According to the actual temperature in the Greenhouse Cherry control requirements to control the ventilation device operation, finally realize the effective control of temperature in the Greenhouse Cherry.