نوع مقاله : مقالة تحقیقی (پژوهشی)
نویسندگان
1 دانشکده مهندسی برق، دانشگاه علم و صنعت ایران، تهران، ایران
2 دانشکده مهندسی برق، دانشگاه خاتم الانبیاء، تهران، ایران
چکیده
در شرایط اورژانسی که امکان استفاده از بسترهای مخابراتی زمینی یا فضایی وجود ندارد و یا در شرایطی که نیاز به برقراری ارتباطی مخابراتی در مناطقی دورافتاده که فاقد بسترهای مورد نیاز مخابراتی هستند وجود دارد، به طور معمول از فناوری بالن‌های مقید برای تبادل اطلاعات استفاده می‌گردد. فناوری بالن‌های مقید علی‌رغم تمام مزایایشان، دارای عیب قابلیت پوشش‌دهی منطقه‌ای کوچک هستند. در این مقاله، به منظور بهره‌گیری همزمان از مزایای بالن‌های مقید و پوشش‌دهی یک منطقه‌ی وسیع، استفاده از یک بالن مجهز به مکانیزم نشانه‌روی آنتن پیشنهاد شده و به مدل‌سازی سینماتیکی و دینامیکی مکانیزم پیشنهادی پرداخته شده است. در این کار مدل سینماتیکی استخراج شده توسط نرم‌افزار RoboAnalyzer و همچنین تولباکس Robotics از نرم‌افزار MATLAB مورد اعتبارسنجی قرار گرفته است. مکانیزیم مدل‌سازی شده قابلیت دوران در دو جهت قوس‌افقی و قوس‌عمودی را برای آنتن فراهم می‌آورد و بدین ترتیب ناحیه تحت پوشش آنتن را به طور چشمگیری افزایش می‌دهد.
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
Extensive Regional Telecommunications Coverage in Emergency Condition using Tethered-Balloon Equipped with Antenna Pointing Mechanism – Part 1: Kinematic and Dynamic Modeling
نویسندگان [English]
- Mohammad Fathi 1
- Javad Ranjbar 2
1 Department of Electrical Engineering Department. Iran University of Science and Technology . Tehran. Iran
2 Department of Electrical Engineering - Khatam Al-Anbia University ,Tehran, Iran
چکیده [English]
In emergency situations, where there is no possibility of using terrestrial-based or space-based telecommunication platforms or when there is a need for providing telecommunication services in remote, rural or hilly areas which are faced with lacking telecommunication infrastructures, typically using tethered balloon-based telecommunication technology is the best choice. Despite all the advantages of using this technology, small and limited coverage area is the biggest drawback of using tethered balloon platforms. In this paper, using a tethered balloon equipped with antenna pointing mechanism is proposed in order to, extend their small coverage area to a large region, in addition to benefit from inherent tethered balloons technology advantages. In this regard, dynamic and kinematic modeling of the proposed antenna pointing mechanism is discussed. In this research, the kinematic model is validated using RoboAnalyzer software and Robotics MATLAB toolbox. Antenna pointing mechanism provides the rotation ability for the antenna in two Azimuth and Elevation directions which increased the coverage area dramatically.
کلیدواژه‌ها [English]
- Kinematic Modeling
- Antenna Pointing Mechanism
- Tethered Balloon
- Coverage Area Enlargement
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