Design and Realization of Wireless Sensor Network for Vegetable Greenhouse Information Acquisition

Temperature, humidity and light condition of greenhouses is related to the growth of vegetables. How to adjust temperature, humidity and light conditions is scientifically and rationally. Its benefit for vegetables are mature, high-quality and efficiency. Therefore, obtain timely and accurate information will improve the yield and quality of vegetables. Greenhouses vegetable environmental characteristics, sensor networks were designed which the data collection accurately and long working of greenhouses. Tracking and monitoring environmental factors of grow influence and the production process in real time or continuous. Wireless sensor network nodes communication circuit was designed by ATmega128L MCU and CC2420 RF, monitor environmental parameters with air temperature and humidity sensors and light intensity sensors. Software system of the sensor monitoring system was designed. Experimental results show: a 20 (m) * 5 (m) of vegetable greenhouse spatial arrangement of 20 nodes in the network, the 30-minute sampling period, the node can to work continue effectively 180 days, the sensor network monitoring system can meet the actual needs.