Intelligent monitoring system of light intensity and CO 2 concentration in strawberries greenhouse

Aiming at the lack of stability and precision of the traditional greenhouse monitoring system, we constructed the intelligent monitoring system to monitor the light intensity and CO 2 concentration of strawberries greenhouses that is based on the STM32 single-chip, by which the light intensity and CO 2 concentration can be acquired and displayed at the same time. The serial communication is used to send the detection results to the MCGS touch screen, then the real-time monitoring and the alarm of the light intensity and CO 2 concentration in the greenhouse can be realized. The long-term test results show that the detection accuracy of the light intensity in this system is ± 940Lux, the detection accuracy of the CO 2 concentration is ± 40ppm. Compared with the traditional automatic monitoring system, the system runs stably and has low cost, whose precision can meet the requirements of the strawberries greenhouse. Above all, the system presented in this paper is suitable for applications to agricultural fields.