Studies on the Greenhouse Wind Direction and Wind Speed Measuring System

This paper introduces the working principle of the greenhouse digital wind direction and wind speed sensor, circuit theory, structure of the wind direction and wind speed signal measuring system, data acquisition method of the wind direction signal, and software counting algorithm of the wind speed pulse signal, analyses of operating cycle of the wind speed pulse signal counting program. The experiment results show the system structure is simple, reliable, accurate and the system can resist interference. So it can be applied easily.