183 research outputs found
Dronevision: An Experimental 3D Testbed for Flying Light Specks
Today's robotic laboratories for drones are housed in a large room. At times,
they are the size of a warehouse. These spaces are typically equipped with
permanent devices to localize the drones, e.g., Vicon Infrared cameras.
Significant time is invested to fine-tune the localization apparatus to compute
and control the position of the drones. One may use these laboratories to
develop a 3D multimedia system with miniature sized drones configured with
light sources. As an alternative, this brave new idea paper envisions shrinking
these room-sized laboratories to the size of a cube or cuboid that sits on a
desk and costs less than 10K dollars. The resulting Dronevision (DV) will be
the size of a 1990s Television. In addition to light sources, its Flying Light
Specks (FLSs) will be network-enabled drones with storage and processing
capability to implement decentralized algorithms. The DV will include a
localization technique to expedite development of 3D displays. It will act as a
haptic interface for a user to interact with and manipulate the 3D virtual
illuminations. It will empower an experimenter to design, implement, test,
debug, and maintain software and hardware that realize novel algorithms in the
comfort of their office without having to reserve a laboratory. In addition to
enhancing productivity, it will improve safety of the experimenter by
minimizing the likelihood of accidents. This paper introduces the concept of a
DV, the research agenda one may pursue using this device, and our plans to
realize one
A survey of single and multi-UAV aerial manipulation
Aerial manipulation has direct application prospects in environment, construction, forestry, agriculture, search, and rescue. It can be used to pick and place objects and hence can be used for transportation of goods. Aerial manipulation can be used to perform operations in environments inaccessible or unsafe for human workers. This paper is a survey of recent research in aerial manipulation. The aerial manipulation research has diverse aspects, which include the designing of aerial manipulation platforms, manipulators, grippers, the control of aerial platform and manipulators, the interaction of aerial manipulator with the environment, through forces and torque. In particular, the review paper presents the survey of the airborne platforms that can be used for aerial manipulation including the new aerial platforms with aerial manipulation capability. We also classified the aerial grippers and aerial manipulators based on their designs and characteristics. The recent contributions regarding the control of the aerial manipulator platform is also discussed. The environment interaction of aerial manipulators is also surveyed which includes, different strategies used for end-effectors interaction with the environment, application of force, application of torque and visual servoing. A recent and growing interest of researchers about the multi-UAV collaborative aerial manipulation was also noticed and hence different strategies for collaborative aerial manipulation are also surveyed, discussed and critically analyzed. Some key challenges regarding outdoor aerial manipulation and energy constraints in aerial manipulation are also discussed
Computational intelligence approaches to robotics, automation, and control [Volume guest editors]
No abstract available
Safe navigation and human-robot interaction in assistant robotic applications
L'abstract Ăš presente nell'allegato / the abstract is in the attachmen
Proceedings of the 9th Conference on Autonomous Robot Systems and Competitions
Welcome to ROBOTICA 2009. This is the 9th edition of the conference on Autonomous Robot Systems and Competitions, the third time with IEEEâRobotics and Automation Society Technical CoâSponsorship. Previous editions were held since 2001 in GuimaraÌes, Aveiro, Porto, Lisboa, Coimbra and Algarve. ROBOTICA 2009 is held on the 7th May, 2009, in Castelo Branco , Portugal.
ROBOTICA has received 32 paper submissions, from 10 countries, in South America, Asia and Europe. To evaluate each submission, three reviews by paper were performed by the international program committee. 23 papers were published in the proceedings and presented at the conference. Of these, 14 papers were selected for oral presentation and 9 papers were selected for poster presentation. The global acceptance ratio was 72%.
After the conference, eighth papers will be published in the Portuguese journal RoboÌtica, and the best student paper will be published in IEEE Multidisciplinary Engineering Education Magazine.
Three prizes will be awarded in the conference for: the best conference paper, the best student paper and the best presentation. The last two, sponsored by the IEEE Education Society â Student Activities Committee.
We would like to express our thanks to all participants. First of all to the authors, whose quality work is the essence of this conference. Next, to all the members of the international program committee and reviewers, who helped us with their expertise and valuable time. We would also like to deeply thank the invited speaker, Jean Paul Laumond, LAASâCNRS France, for their excellent contribution in the field of humanoid robots. Finally, a word of appreciation for the hard work of the secretariat and volunteers.
Our deep gratitude goes to the Scientific Organisations that kindly agreed to sponsor the Conference, and made it come true.
We look forward to seeing more results of R&D work on Robotics at ROBOTICA 2010, somewhere in Portugal
Testability of a swarm robot using a system of systems approach and discrete event simulation
A simulation framework using discrete event system specification (DEVS) and data encoded with Extensible Markup Language (XML) is presented to support agent-in-the-loop (AIL) simulations for large, complex, and distributed systems. A System of Systems (SoS) approach organizes the complex systems hierarchically. AIL simulations provide a necessary step in maintaining model continuity methods to achieve a greater degree of accuracy in systems analysis. The proposed SoS approach enables the simulation and analysis of these independent and cooperative systems by concentrating on the data transferred among systems to achieve interoperability instead of requiring the software modeling of global state spaces. The information exchanged is wrapped in XML to facilitate system integration and interoperability. A Groundscout is deployed as a real agent working cooperatively with virtual agents to form a robotic swarm in an example threat detection scenario. This scenario demonstrates the AIL framework\u27s ability to successfully test a swarm robot for individual performance and swarm behavior. Results of the testing process show an increase of robot team size increases the rate of successfully investigating a threat while critical violations of the algorithm remained low despite packet loss
Selfâorganised multi agent system for search and rescue operations
Autonomous multi-agent systems perform inadequately in time critical missions, while they tend to
explore exhaustively each location of the field in one phase with out selecting the pertinent strategy. This
research aims to solve this problem by introducing a hierarchy of exploration strategies. Agents explore
an unknown search terrain with complex topology in multiple predefined stages by performing pertinent
strategies depending on their previous observations. Exploration inside unknown, cluttered, and confined
environments is one of the main challenges for search and rescue robots inside collapsed buildings. In
this regard we introduce our novel exploration algorithm for multiâagent system, that is able to perform
a fast, fair, and thorough search as well as solving the multiâagent traffic congestion.
Our simulations have been performed on different test environments in which the complexity of the
search field has been defined by fractal dimension of Brownian movements. The exploration stages are
depicted as defined arenas of National Institute of Standard and Technology (NIST). NIST introduced
three scenarios of progressive difficulty: yellow, orange, and red. The main concentration of this research
is on the red arena with the least structure and most challenging parts to robot nimbleness
NASA Tech Briefs, July 1992
Topics include: New Product Ideas; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences
Precision Agriculture Technology for Crop Farming
This book provides a review of precision agriculture technology development, followed by a presentation of the state-of-the-art and future requirements of precision agriculture technology. It presents different styles of precision agriculture technologies suitable for large scale mechanized farming; highly automated community-based mechanized production; and fully mechanized farming practices commonly seen in emerging economic regions. The book emphasizes the introduction of core technical features of sensing, data processing and interpretation technologies, crop modeling and production control theory, intelligent machinery and field robots for precision agriculture production
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