Development of GPS Guided Auto Aerial Infrared Photography System for Harvest and Soil Improvement

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An air plane of 3.6m wing span, about 8Kg weight and pull by about 3 horsepower alcohol engine was developed, and GPS, ultra light computer and wireless modem are on boarded. In order to confirm real time position of the air plane, current position of the air plane was indicated on digital map of a ground computer by sending GPS data via wireless modem. Commercially soled digital camera which was modified to functioning as a near-infrared camera was boarded on the airplane, and aerial near-infrared photography of a beet farm was taken from approximately 250m above the farm. From the shade of the infrared image, locations of growth inferiority are determined and chemical analyses of soil were made both for growth inferiority and nomality portions. As a result, acidic soil was found to be the cause of the growth inferiority.