Optimal Placement of Camera Wireless Sensors in Greenhouses

Stability of the ideal plant environment in a greenhouse can be maintained by using wireless sensor networks, which are used for monitoring and controlling temperature, light, and humidity. Tracking plant growth is the best method for early detection of disease thus preventing significant crop losses. Wireless Visual Sensor Network (WVSN) are used for monitoring plant growth with the added feature of a camera. This paper presents a mathematical formulation and an optimal solution for the placement of the WVSN cameras to guarantee coverage of a large area while maintaining high quality images and minimizing overlap between cameras. Simulation results show the effectiveness of the proposed model in finding the minimum number of cameras with the exact position to cover the entire monitored area of the greenhouse, with the desired image quality resolution.