The System of Water-Saving Irrigation based on WSN and MSIF

Confronted by the population mushroomed and the increasing shortage of water around the world today, water-saving irrigation and intensive cultivation are inevitable and viable. In this paper, the auto water-saving irrigation based on wireless sensors networks and multi-source information fusion technology based on entropy is introduced. Using wireless sensors networks which adopts nRF2401 as transfer modual, collecting and fusing multisource information from crop growing environment at remote monitoring center such as soil moisture and temperature and the CO2 content, information about intensity of illumination realtime, it is realized to auto water-saving irrigation according to control strategy which is given by expert database about the demand for crops growth. Adopted solar batteries to supplying the current, using multi-level memory management and multi-level energy storage mechanism, it converts the solar into electric and makes the system becoming self-sufficient in energy. Combined with low power consumption and algorithm of multi-sensor planning and management based on entropy, it is significance for energy-saving and consumption reducing, and it is convenient and flexible and precise for automatic saving-water irrigation. The results of practical application verify the reliability and efficiency of the design strategy of system. Also the system can be used in greenhouse and regional farmland and large irrigation area.