scholarly journals SIMULASI ANTENA MIKROSTRIP RECTANGULAR PATCH ARRAY EMPAT ELEMEN UNTUK PENERIMA FPV 5,8 GHZ PADA WAHANA UAV

Author(s):  
Ferry Ferry ◽  
Syahrial Syahrial ◽  
Hubbul Walidainy ◽  
Ahmadiar Ahmadiar

Antena merupakan faktor utama pada sistem First Person View (FPV) untuk mentransmisi video secara real time dari Unmaned Aerial Vehicle (UAV) ke pengguna di Ground Control Station (GCS). Penelitian ini bertujuan untuk merancang antena mikrostrip rectangular patch array empat elemen menggunakan teknik pencatu Line Feed untuk penerima FPV 5,8 GHz, metode yang dipakai adalah simulasi dengan software Advanced Design System (ADS). Bahan yang digunakan Epoxy fiberglass FR4, ketebalan (h) = 1,6 mm, konstanta dielektrik (εr) = 4,5, dan Loss tangent = 0,018. Berdasarkan hasil simulasi diperoleh nilai return loss = -23,018 dB, VSWR = 1,152, gain = 9,442 dBi, bandwidth = 284 MHz serta memiliki pola radiasi directional.

Author(s):  
Mlađan Jovanovic´ ◽  
Dusˇan Starcˇevic´ ◽  
Zoran Jovanovic´

Uninhabited vehicles can be used in many applications and domains, particularly in environments that humans cannot enter (e.g. deep sea) or prefer not to enter (e.g. war zones). The promise of relatively low cost, highly reliable and effective assets that are not subject to the physical, psychological or training constraints of human pilots has led to much research effort across the world. Due to technological advances and increasing investment, interest in Unmanned Aerial Vehicles (UAVs) as a practical, deployable technological component in many civil applications is rapidly increasing and becoming a reality, as are their capabilities and availability. UAV platforms also offer a unique experimental environment for developing, integrating and experimenting with many other technologies such as automated planners, knowledge representation systems, chronicle recognition systems, etc. UAV performs various kinds of missions such as mobile tactical reconnaissance, surveillance, law enforcement, search and rescue, land management, environmental monitoring, disaster management. UAV is a complex and challenging system to develop. It operates autonomously in unknown and dynamically changing environment. This requires different types of subsystems to cooperate. In order to realize all functionalities of the UAV, the software part becomes very complex real-time system expected to execute real-time tasks concurrently. This paper describes proposed software architecture for GCS (Ground Control Station) for lightweight UAV purpose-built for medium-scale reconnaissance and surveillance missions in civil area. The overall system architecture and implementation are described.


2020 ◽  
Vol 5 (1) ◽  
pp. 71-84
Author(s):  
Adhyta Harfan ◽  
Dipo Yudhatama ◽  
Imam Bachrodin

Metode Fotogrametri telah banyak digunakan dalam survei dan pemetaan. Seiring dengan kemajuan ilmu pengetahuan dan teknologi, metode fotogrametri saat ini berbasiskan pesawat tanpa awak atau yang lebih dikenal dengan UAV (Unmanned Aerial Vehicle). Kelebihan metode fotogrametri berbasiskan UAV untuk pengukuran garis pantai adalah memiliki resolusi spasial yang sangat tinggi dan dapat menjagkau daerah-daerah yang sulit dan berbahaya. Di samping itu juga dapat memberikan data foto udara terkini dengan sekala detail. Dalam penelitian ini membandingkan ketelitian horisontal antara hasil pengukuran garis pantai menggunakan metode fotogrametri berbasiskan UAV secara rektifikasi dengan GCP (Ground Control Point) maupun secara PPK (Post Processed Kinematic) dengan pengukuran garis pantai metode GNSS RTK (Real Time Kinematic). Hasil perhitungan ketelitian horisontal mengacu pada standar publikasi IHO S-44 tentang pengukuran garis pantai. Pemotretan dilakukan dengan ketinggian terbang 180 m, dengan tampalan depan dan samping 80%. Hasil perhitungan ketelitian horisontal foto udara terektifikasi 5 GCP, foto udara PPK dan foto udara PPK terektifikasi 1 GCP terhadap pengukuran garis pantai dengan metode GNSS RTK diperoleh nilai standar deviasi (σ) dan 95% selang kepercayaan (CI95%) masing-masing sebagai berikut: σ5gcp=10,989 cm dengan CI95% 16.8 cm < μ < 21.2 cm , σppk=26,066 cm dengan CI95% 26.5 cm < μ < 37 cm dan σppk1gcp=10,378 cm dengan CI95% 15.6 cm < μ < 19.8 cm. Kemudian terdapat 10 objek tematik berdasarkan Peta Laut Nomor 1 yang dapat diinterpretasi pada hasil orthomosaic foto udara.


2021 ◽  
Author(s):  
Taiwo Amida

The majority of Unmanned Aerial Vehicle (UAV) accidents can be directly related to human error. For this reason, standards and guidelines focusing on human factors have been published by various organizations such as Transport Canada, FAA, EASA, NASA and military agencies. The objective of this thesis is to present a methodology for designing a Ground Control Station (GCS) using available standards and guidelines for human factors. During the design process, a detailed analysis was performed using human factors methods to ensure all requirements were met; each phase of the design follows the guidelines presented in the compiled human factors standards and guidelines. The GCS interface was developed using advanced programming techniques and commercial off-the-shelf software. Moreover, an operator workload evaluation was carried out using NASA task load index for validation of design methodology. It was found that the applied methodology not only improved the pilot workload, but also ensured that all user and stakeholders’ requirements are met.


2018 ◽  
Vol 6 (3) ◽  
pp. 147-159 ◽  
Author(s):  
Kazi Mahmud Hasan ◽  
S.H. Shah Newaz ◽  
Md. Shamim Ahsan

Purpose The purpose of this paper is to demonstrate the development of an aircraft-type autonomous portable drone suitable for surveillance and disaster management. The drone is capable of flying at a maximum speed of 76 km/h. This portable drone comprises five distinct parts those are easily installable within several minutes and can be fit in a small portable kit. The drone consists of a ballistic recovery system, allowing the drone landing vertically. The integrated high-definition camera sends real-time video stream of desired area to the ground control station. In addition, the drone is capable of carrying ~1.8 kg of payload. Design/methodology/approach In order to design and develop the portable drone, the authors sub-divided the research activities in six fundamental steps: survey of the current drone technologies, design the system architecture of the drone, simulation and modeling of various modules of the drone, development of various modules of the drone and their performance analysis, integration of various modules of the drone, and real-life performance analysis and finalization. Findings Experimental results: the cruise speed of the drone was in the range between 45 and 62 km/h. The drone was capable of landing vertically using the ballistic recovery system attached with it. On the contrary, the drone can transmit real-time video to the ground control station and, thus, suitable for surveillance. The audio system of the drone can be used for announcement of emergency messages. The drone can carry 1.8 kg of payload and can be used during disaster management. The drone parts are installed within 10 min and fit in a small carrying box. Practical implications The autonomous aircraft-type portable drone has a wide range of applications including surveillance, traffic jam monitoring and disaster management. Social implications The cost of the cost-effective drone is within $700 and creates opportunities for the deployment in the least developed countries. Originality/value The autonomous aircraft-type portable drone along with the ballistic recovery system were designed and developed by the authors using their won technology.


2016 ◽  
Vol 13 (1) ◽  
pp. 33
Author(s):  
Teguh Praludi ◽  
Yaya Sulaeman

Kebutuhan akan sebuah filter dalam sebuah rangkaian elektronik mutlak diperlukan, dikarenakan sesuai dengan fungsi filter adalah meloloskan frekuensi yang diinginkan dan akan menahan frekuensi yang tidak diinginkan. Desain dan realisasi filter bandpass menggunakan teknologi mikrostrip dengan struktur hairpin akan dipaparkan pada makalah ini. Strukur hairpin merupakan perbaikan dari filter yang menggunakan parallel coupled bila ditinjau dari sisi dimensi sebuah filter, di mana pada struktur hairpin ini, panjang dari stripline akan dilipat membentuk huruf U sebesar ½ λ dengan sudut lekukan 90o. Filter bandpass struktur hairpin dengan teknologi mikrostrip akan didesain dengan insertion loss ≤ -3 dB pada daerah passband, return loss ≥ -20 dB, lebar bandwidth 200 MHz, impedansi karakteristik 50 Ω, frekuensi kerja 2,9–3,1 GHz dengan respon filter Chebyshev 0,1 dB. Filter bandpass yang didesain menggunakan bahan dari roger RO4350 yang mempunyai ketebalan 1,44 mm, dan permitivitas relatif (εr) = 3,77. Filter bandpass struktur hairpin ini dirancang dan disimulasikan dengan menggunakan perangkat lunak ADS (Advanced Design System) dari Agilent.


2021 ◽  
Author(s):  
Jeffrey Haber

This thesis presents a reconfigurable Ground Control Station designed for Unmanned Aerial Vehicle use, which utilizes multi-touch gesture inputs as well as the ability for the operator to personalize where the instruments they interact with are located on screen. The Ground Control Station that is presented was designed and developed in Ryerson University’s Mixed-Reality Immersive Motion Simulation Laboratory utilizing commercial off the shelf programs supplied by Presagis. Presagis’ VAPS XT 4.1 beta was used to design and develop the actual Ground Control Station’s User Interface due to its ability to create high quality interfaces for aircraft that harness multi-touch gestures. While FlightSIM 14 was used to simulate a high fidelity aircraft being controlled by the Ground Control Station. The final interface was comprised of six key features and 12 different instrument panels that could be manipulated by the operator to control a simulated aircraft throughout a virtual environment.


2015 ◽  
Vol 76 (1) ◽  
Author(s):  
Azizul Abdullah ◽  
Elmi Abu Bakar ◽  
Muhammad Zaim Mohamed Pauzi

Collecting information on traffic flows are important for provide high quality road system. At present, fixed camera is widely used for the monitoring system which covers limited area.  Therefore, the unmanned aerial vehicle (UAV) such as quadrotor is developed for monitoring traffic flow since the UAV is responsive mobile sensing system. This development of UAV platform is a starting point for developed a highway traffic and management system which is in future can be enhance by connected the system with graphical user interface (GUI) on ground control station that can defined types of vehicles and analyze level of congestion. At present, the system that developed only transmits a real time video to ground control station without any interpretation by software that detects types of vehicles and analyzes traffic condition. Through the surveillance and monitoring of traffic flows that done at Engineering Campus, Universiti Sains Malaysia, the system provides suitable information for authorities to analyse level of congestion happened on the road and provide alternative solution for users in order to avoid the traffic jam.  


Sensors ◽  
2019 ◽  
Vol 19 (19) ◽  
pp. 4085 ◽  
Author(s):  
Ben Schellenberg ◽  
Tom Richardson ◽  
Arthur Richards ◽  
Robert Clarke ◽  
Matt Watson

A team from the University of Bristol have developed a method of operating fixed wing Unmanned Aerial Vehicles (UAVs) at long-range and high-altitude over Volcán de Fuego in Guatemala for the purposes of volcanic monitoring and ash-sampling. Conventionally, the mission plans must be carefully designed prior to flight, to cope with altitude gains in excess of 3000 m, reaching 9 km from the ground control station and 4500 m above mean sea level. This means the climb route cannot be modified mid-flight. At these scales, atmospheric conditions change over the course of a flight and so a real-time trajectory planner (RTTP) is desirable, calculating a route on-board the aircraft. This paper presents an RTTP based around a genetic algorithm optimisation running on a Raspberry Pi 3 B+, the first of its kind to be flown on-board a UAV. Four flights are presented, each having calculated a new and valid trajectory on-board, from the ground control station to the summit region of Volcań de Fuego. The RTTP flights are shown to have approximately equivalent efficiency characteristics to conventionally planned missions. This technology is promising for the future of long-range UAV operations and further development is likely to see significant energy and efficiency savings.


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