Design issues for wireless sensor networks and smart humidity sensors for precision agriculture: A review

Precision agriculture is a process in which information and technology is used for collection of high resolution spatio-temporal data regarding atmospheric and soil conditions from farm land. With the help of farm land data and an appropriate crop-growth model, a decision support system regulates the agricultural needs precisely in order to gain maximum benefits for farmer. Application of Wireless Sensor Networks (WSN) provides a low cost and easy to implement solution for automatic data collection from farmlands. Various design issues for WSN in context of precision agriculture have been reviewed in this paper. Humidity (RH) sensors play a crucial role for WSN for precision agriculture applications. This paper also reviews various requirements of Humidity sensors characteristics in context of WSN application for precision agriculture. In the later section of the paper, in depth comparative review of recent research work done in field of design and performance modeling of humidity sensor has been given.