Smart watering system for gardens using wireless sensor networks

摘要

This paper discusses the usage of wireless sensor networks in irrigation control by a smart watering system in which the irrigation process is controlled by valves. Water supplies became pollute and scarce. During the last years, the necessity to use water resources such as rivers, ground water and rain water efficiently has increased rapidly. Population growth, rapid urbanization and climate change have stressed water resources on the planet. The application of wireless soil-moisture sensor networks to detect water content in the soil can utilize water resources very efficiently. Water requirements depend on the type of plants and the soil as well as the season. A study has been made on the clay soil to observe its behavior and its different characteristics. By this study the time of excitation of the sensor could be known and the period of irrigation could be detected. This will be more efficient in terms of the time in which the sensor will be excited and the quantity of water that will be used.