Monitoring and control of CO2 in greenhouse based on wireless sensor network

Solar greenhouse, as an intelligent production system, is a trend in the development of facility agriculture. The major crops cultivated in greenhouses are high-value crops such as leafy vegetables, fruit vegetables, and flowering plants. Wireless sensor network (WSN) is a new technology of information acquisition that has been widely used in agriculture, especially in greenhouses. Environmental factors such as CO2 concentration, light intensity, and temperature are highly important for crop growth in greenhouse. CO2 is one of main raw material for crop growing, and the CO2 concentration may deeply affect photosynthesis. Studies have shown that biomass increases by approximately 50% in C3 plants and 12% in C4 plants under CO2 enrichment conditions.