61,813 research outputs found

    Composite video and graphics display for camera viewing systems in robotics and teleoperation

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    A system for real-time video image display for robotics or remote-vehicle teleoperation is described that has at least one robot arm or remotely operated vehicle controlled by an operator through hand-controllers, and one or more television cameras and optional lighting element. The system has at least one television monitor for display of a television image from a selected camera and the ability to select one of the cameras for image display. Graphics are generated with icons of cameras and lighting elements for display surrounding the television image to provide the operator information on: the location and orientation of each camera and lighting element; the region of illumination of each lighting element; the viewed region and range of focus of each camera; which camera is currently selected for image display for each monitor; and when the controller coordinate for said robot arms or remotely operated vehicles have been transformed to correspond to coordinates of a selected or nonselected camera

    A control framework for a remotely operated vehicle

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    A control framework enabling the automated maneuvering of a Remotely Operate Vehicle (ROV) is presented. The control architecture is structured according to the principle of composition of vehicle motions from a minimal set of elemental maneuvers that are designed and verified independently. The principled approach is based on distributed hybrid systems techniques, and spans integrated design, simulation and implementation as the same model is used throughout. Hybrid systems control techniques are used to synthesize the elemental maneuvers and to design protocols, which coordinate the execution of elemental maneuvers within a complex maneuver. This work is part of the Inspection of Underwater Structures (IES) project whose main objective is the implementation of a ROV-based system for the inspection of underwater structures

    Simulasi Dan Analisa Dinamika Remotely Operated Vehicle (Rov)

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    ROV (Remotely Operated Vehicle) is a type of underwater robot that resembles a ship. The robot is controlled by a pilot who controls the remote control. In this ROV tether as a link robot using the device as a source of energy on the surface of the ocean, remote control and sensing display. This study starts from the stage of modeling the body of the ROV using SolidWorks 2012 to obtain the value of gravity and the buoyancy of the ROV. Construct equations of mathematical modeling with MATLAB SIMULINK to generate 3 DOF motion of the ROV. Creating a world in language VRML files using software V-Realm Builder 2.0 and connect it to the ROV dynamics conditions in MATLAB SIMULINK. Then simulation of the ROV using sl3d toolbox contained in MATLAB 2013b and dynamics analysis of the ROV vision of ROV thruster force is modeled as the input plots generated Signal Builder with position and velocity with respect to time

    Development Of A Vision System For Ship Hull Inspection

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    Penyelidikan ini memperkenalkan strategi pengawalan untuk memperbaiki prestasi pemeriksaan visual badan kapal dengan menggunakan kenderaan dalam air. This work introduces a strategy to improve the performance of visual ship hull inspection using a Remotely-Operated Vehicle (ROV) as its underwater vehicle platform

    Composite video and graphics display for multiple camera viewing system in robotics and teleoperation

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    A system for real-time video image display for robotics or remote-vehicle teleoperation is described that has at least one robot arm or remotely operated vehicle controlled by an operator through hand-controllers, and one or more television cameras and optional lighting element. The system has at least one television monitor for display of a television image from a selected camera and the ability to select one of the cameras for image display. Graphics are generated with icons of cameras and lighting elements for display surrounding the television image to provide the operator information on: the location and orientation of each camera and lighting element; the region of illumination of each lighting element; the viewed region and range of focus of each camera; which camera is currently selected for image display for each monitor; and when the controller coordinate for said robot arms or remotely operated vehicles have been transformed to correspond to coordinates of a selected or nonselected camera

    Advanced Remotely Operated Vehicle for Education and Research

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    Disclosed are watercrafts with rotatable air propulsion steering units and retractable measurement instruments. The watercraft can include a substantially flat bottom, a top deck, a rotatable air propulsion steering unit configured to propel the watercraft and to rotate in order to steer the watercraft when the watercraft is submerged in a liquid body without requiring a submerged rudder steering system under the substantially flat bottom. The watercraft can also include a retractable measurement deck configured to alternatively raise measurement instruments above the liquid body and lower into the liquid body

    DESAIN DAN IMPLEMENTASI SISTEM REMOTELY OPERATED VEHICLE (ROV) PADA ROBOT iSRo

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    Umumnya robot Autonomous Multiplatform didesain untuk negara yang secara geografis rawan terhadap bencana gempa bumi dan tsunami, termasuk Indonesia. Ketika terjadi bencana alam, korban harus segera mendapat pertolongan dan perawatan untuk menghindari jumlah kematian yang lebih besar. Oleh karena itu robot yang dapat bergerak mencari dan menemukan letak korban dan dapat bermanuver diantara reruntuhan akibat bencana, sangat diperlukan untuk membantu tugas dari Tim SAR. Robot iSRo (intellegent search robot) adalah robot dengan desain mekanisme baru yang merupakan gabungan dari dua sistem mekanisme beroda dan berkaki. Sistem mekanisme ini akan meningkatkan kemampuan bermanuver dari robot di medan bencana yang sulit dijangkau oleh manusia. Robot memiliki dua sistem pengoperasian, yaitu dioperasikan secara manual melalui joystick dan secara autonomous. Sensor ultrasonik akan digunakan untuk mendeteksi halangan yang ada disekitar robot. Robot dilengkapi dengan kamera untuk navigasi dan mengetahui posisi keberadaan robot. Sistem Remotely Operated Vehicle (ROV) menggunakan Xbee Pro yang beroperasi pada frekuensi 2,4 GHz. Dengan daya jangkau 300 meter pada area terbuka. Setiap gerakan dari kontrol Remotely Operated Vehicle (ROV) akan disesuaikan dengan simulasi pada software Webots 5.10. Dengan memberikan kecerdasan berupa primitive behavior, pengujian mobilitas dan performa yang dilakukan oleh robot iSRo dapat menghindari beberapa rintangan seperti tanjakan, jalan berbatu, tanah, ruang sempit, dengan dioperasikan secara manual dan autonomous. Keyword : Remotely Operated Vehicle, Xbee Pro, Rescue Robot, RO

    Exploring Deep-Sea Data

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    The Monterey Bay Aquarium Research Institute (MBARI) has collected and archived deep-sea video from remotely operated vehicle dives since 1988. The video archive contains footage and data on the biological, chemical, geological, and physical aspects of deep regions of the Pacific. MBARI developed a software system, the Video Annotation and Reference System, to create, store, and retrieve video annotations. The system is based on a hierarchical catalog of biological, geological, and technical terms that allows consistent and rapid classification of objects seen on video. Based on knowledge collected by the annotation process, MBARI staff developed a web-based Deep-Sea Guide to the organisms and geologic features recorded on remotely operated vehicle dives into the deep sea. The searchable guide provides information about biological taxonomy, geology, and habitats, and displays dynamic histograms and useful statistics derived from the video annotations

    Design and Verification of a Distributed Communication Protocol

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    The safety of remotely operated vehicles depends on the correctness of the distributed protocol that facilitates the communication between the vehicle and the operator. A failure in this communication can result in catastrophic loss of the vehicle. To complicate matters, the communication system may be required to satisfy several, possibly conflicting, requirements. The design of protocols is typically an informal process based on successive iterations of a prototype implementation. Yet distributed protocols are notoriously difficult to get correct using such informal techniques. We present a formal specification of the design of a distributed protocol intended for use in a remotely operated vehicle, which is built from the composition of several simpler protocols. We demonstrate proof strategies that allow us to prove properties of each component protocol individually while ensuring that the property is preserved in the composition forming the entire system. Given that designs are likely to evolve as additional requirements emerge, we show how we have automated most of the repetitive proof steps to enable verification of rapidly changing designs
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