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  Citation Number 6
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İnsansız Hava Araçları İçin Görüntü İşleme Tabanlı Otonom İniş
2020
Journal:  
Avrupa Bilim ve Teknoloji Dergisi
Author:  
Abstract:

Günümüzde teknolojik anlamda herkes güvenli ölçümlerin hayatımızdaki etkisine oldukça aşinadır. Yani bu bağlamda araştırmacılar tarafından güvenli ölçüm çalışmaları için birçok çalışma yapıldı ve bunlardan biri İnsansız Hava Aracı. İnsansız Hava Aracının iyi bilinen bir kullanımı, belki de, bu cihazı sadece insansız hareketi için değil, aynı zamanda keyfi alanlar üzerinde uçuş sırasında benzersiz manevra için son derece pratik kılan güvenlik ve bakım ölçümlerindeki kabiliyetidir. Bu araştırmada İnsansız Hava Aracının otomatik inişi ele alınmıştır. İnsansız Hava Araçlarının (İHA) günümüzde gözetleme, keşif, askeri amaçlar, taşımacılık, zirai ilaçlama, kamera çekimi, yangın söndürme gibi birçok alanda kullanımı hızla artmıştır. İHA sistemlerinde kalkış, seyir, güdüm ve iniş kontrolü en önemli olaylardır. İHA’nın seyir halinde havadaki dengesi, çevre güvenliği ve uçuş stabilitesi açısından önem arz etmektedir. İHA’nın kalkış ve iniş manevraları güvenlik ve kararlılık açısından oldukça önemlidir. Bu çalışmada, havadaki bir İHA’nın görüntü işleme metodları kullanılarak zemin üzerindeki renkli bir alana otonom olarak inmesi sağlanmıştır. Alan üzerine dairesel biçimde bir cisim konulmuştur. Bunun için renkli dairesel cismin kamera ile koordinatları ölçülerek bu koordinatlara göre iniş yörüngesi belirlenmiştir. Kamera ile çekilen görüntü 512 piksele ayrılmıştır. Çekilen görüntünün tam orta noktası 256x256 pikseller olarak ayarlanmıştır. Kameradan gelen anlık geri kazançlar ile İHA kendi konumunu sürekli kontrol ederek sabit kalmaya çalışmıştır. Bu sayede otonom iniş için gerekli olan anlık kontrol edilen değerler kamera görüntüsü kullanılarak değerlendirilmiştir. Ayrıca çalışmada İHA için eşdeğer lineer bir transfer fonksiyonu elde edilmiştir. İHA’nın giriş sinyallerinin ve çıkış sinyallerinin değerleri incelenerek System identification ile uygun bir transfer fonksiyonu elde edilmiştir. Bu transfer fonksiyonu denetleyici tasarımında kullanılmıştır.

Keywords:

Autonomous landing based on image processing for unmanned aircraft
2020
Author:  
Abstract:

Today, technologically, everyone is quite aware of the impact of secure measurements on our lives. So in this context, many studies have been conducted by researchers for safe measurement studies and one of them is the Unmanned Aircraft. A well-known use of the Unmanned Aircraft,, is the ability in safety and maintenance measurements that make this device extremely practical not only for unmanned movement, but also for unique maneuver during flight on pleasant areas. This study discussed the automatic landing of the unmanned aircraft. Today, the use of unmanned aircraft has rapidly increased in many fields such as monitoring, discovery, military purposes, transportation, pharmaceuticals, camera capture, fire-fire. In the IHA systems, departure, flight, drive and landing control are the most important events. The IHA’s balance in the air is of importance in terms of environmental safety and flight stability. The IHA’s departure and landing maneuver is very important for safety and stability. In this study, an IHA in the air was secured to land autonomously into a colorful area on the ground using image processing methods. A body is placed on the area in a circular form. For this purpose, the colour circular body’s camera and coordinates are measured according to these coordinates and the landing orbit is determined. The image is divided into 512 pixels. The full middle point of the image is set to 256x256 pixels. With immediate returns from the camera, IHA has tried to stay stable by constantly checking its position. Thus, the immediate controlled values required for autonomous landing were assessed using the camera image. In the study, a linear transfer function equal to IHA was also obtained. By studying the values of the input signals and output signals of the IHA, a transfer function is achieved with System identification. This transfer function has been used in the control design.

Keywords:

Image Processing Based Autonomous Landing For Unmanned Aerial Vehicles
2020
Author:  
Abstract:

Technologically, everyone today is very familiar with the impact of safe measurements on our lives. In this context, many studies have been done by researchers for safe measurement studies, and one of them is Unmanned Aerial Vehicle. A well-known use of the Unmanned Aerial Vehicle is perhaps its ability in safety and maintenance measurements, which makes this device extremely practical not only for unmanned movement but also for unparalleled maneuvering during flight over arbitrary areas. In this research, the automatic landing of the Unmanned Aerial Vehicle is discussed. The use of Unmanned Aerial Vehicles (UAV) in many areas such as surveillance, reconnaissance, military purposes, transportation, agricultural spraying, camera shooting and fire fighting has increased rapidly. Take-off, navigation, guidance and landing control are the most important events in UAV systems. The balance of the UAV in the air while traveling is important in terms of environmental safety and flight stability. The take-off and landing maneuvers of the UAV are very important in terms of safety and stability. In this study, an airborne UAV was enabled to land autonomously on a colored area on the ground using image processing methods. An object is placed in a circular shape on the field. For this, the coordinates of the colored circular object were measured with the camera and the landing trajectory was determined according to these coordinates. The image taken with the camera is divided into 512 pixels. The exact midpoint of the captured image is set to 256x256 pixels. With the instant gains from the camera, the UAV tried to stay stable by constantly checking its position. In this way, the instantly controlled values required for autonomous landing were evaluated using the camera image. In addition, an equivalent linear transfer function was obtained for the UAV. and output signals of the UAV, a suitable transfer function has been obtained with System identification. This transfer function is used in controller design.

Keywords:

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Avrupa Bilim ve Teknoloji Dergisi

Field :   Fen Bilimleri ve Matematik; Mühendislik

Journal Type :   Uluslararası

Metrics
Article : 3.175
Cite : 5.526
Avrupa Bilim ve Teknoloji Dergisi