Design Of Agricultural Condition Monitoring System Based On UAV Rotorcraft

Agricultural condition monitoring is an important part of agricultural informationization.In order to increase the resilience to natural disasters in agricultural production,obtaining agricultural information is essential timely and effectively.Traditional agricultural condition monitoring usually adopts manual surveying or aerial remote sensing methods.These methods often have the disadvantages of many manpower and material resources and high operating costs.This paper proposes an agricultural condition monitoring system based on UAV rotorcraft.The system uses UAV rotorcraft to carry the visible light camera and the infrared camera respectively to obtain the visible light image and the infrared image of the target farmland,and then completes the task of agricultural condition monitoring through the post-image processing.The main work of the dissertation is as follows:1.Combining the research status of agricultural condition monitoring using UAVs at home and abroad,through the comparison of the performance of different types of UAVs,the actual selection,assembly,calibration of each module of UAV used for agricultural condition monitoring systems and field flight experiments was completed,and the pre-processing of the visible light image and infrared image was also done.2.Using the visible light image of the target farmland,the three-dimensional model of the farmland was obtained by matching the extracted image feature points and reconstructing the point cloud model.3.Analysis of the important role of leaf area index and surface temperature on agricultural production.Using the visible light image of the target farmland,the leaf area index of the target farmland was estimated through image mosaicing and threshold segmentation;Using the infrared image of the target farmland,the surface temperature of the target farmland is estimated by finding the correlation between the image gray value and the surface temperature.This paper has used this system to carry out the agricultural condition monitoring experiment of the actual farmland smoothly,and completed the established experimental task well,marking that the system has been initially matured.