6,383 research outputs found
Enabling Communication Technologies for Automated Unmanned Vehicles in Industry 4.0
Within the context of Industry 4.0, mobile robot systems such as automated
guided vehicles (AGVs) and unmanned aerial vehicles (UAVs) are one of the major
areas challenging current communication and localization technologies. Due to
stringent requirements on latency and reliability, several of the existing
solutions are not capable of meeting the performance required by industrial
automation applications. Additionally, the disparity in types and applications
of unmanned vehicle (UV) calls for more flexible communication technologies in
order to address their specific requirements. In this paper, we propose several
use cases for UVs within the context of Industry 4.0 and consider their
respective requirements. We also identify wireless technologies that support
the deployment of UVs as envisioned in Industry 4.0 scenarios.Comment: 7 pages, 1 figure, 1 tabl
Lifting GIS Maps into Strong Geometric Context for Scene Understanding
Contextual information can have a substantial impact on the performance of
visual tasks such as semantic segmentation, object detection, and geometric
estimation. Data stored in Geographic Information Systems (GIS) offers a rich
source of contextual information that has been largely untapped by computer
vision. We propose to leverage such information for scene understanding by
combining GIS resources with large sets of unorganized photographs using
Structure from Motion (SfM) techniques. We present a pipeline to quickly
generate strong 3D geometric priors from 2D GIS data using SfM models aligned
with minimal user input. Given an image resectioned against this model, we
generate robust predictions of depth, surface normals, and semantic labels. We
show that the precision of the predicted geometry is substantially more
accurate other single-image depth estimation methods. We then demonstrate the
utility of these contextual constraints for re-scoring pedestrian detections,
and use these GIS contextual features alongside object detection score maps to
improve a CRF-based semantic segmentation framework, boosting accuracy over
baseline models
GUARDIANS final report
Emergencies in industrial warehouses are a major concern for firefghters. The large dimensions together with the development of dense smoke that drastically reduces visibility, represent major challenges. The Guardians robot swarm is designed to assist fire fighters in searching a
large warehouse. In this report we discuss the technology developed for a swarm of robots searching and assisting fire fighters. We explain the swarming algorithms which provide the functionality by which the robots react to and follow humans while no communication is required. Next we
discuss the wireless communication system, which is a so-called mobile ad-hoc network. The communication network provides also one of the means to locate the robots and humans. Thus the robot swarm is able to locate itself and provide guidance information to the humans. Together with
the re ghters we explored how the robot swarm should feed information back to the human fire fighter. We have designed and experimented with interfaces for presenting swarm based information to human beings
An indoor navigation architecture using variable data sources for blind and visually impaired persons
Contrary to outdoor positioning and navigation
systems, there isn’t a counterpart global solution for indoor
environments. Usually, the deployment of an indoor positioning
system must be adapted case by case, according to the
infrastructure and the objective of the localization. A particularly
delicate case is related with persons who are blind or visually
impaired. A robust and easy to use indoor navigation solution
would be extremely useful, but this would also be particularly
difficult to develop, given the special requirements of the system
that would have to be more accurate and user friendly than a
general solution. This paper presents a contribute to this subject,
by proposing a hybrid indoor positioning system adaptable to the
surrounding indoor structure, and dealing with different types of
signals to increase accuracy. This would permit lower the
deployment costs, since it could be done gradually, beginning
with the likely existing Wi-Fi infrastructure to get a fairy
accuracy up to a high accuracy using visual tags and NFC tags
when necessary and possible.info:eu-repo/semantics/publishedVersio
Wi-Fi Sensing: Applications and Challenges
Wi-Fi technology has strong potentials in indoor and outdoor sensing
applications, it has several important features which makes it an appealing
option compared to other sensing technologies. This paper presents a survey on
different applications of Wi-Fi based sensing systems such as elderly people
monitoring, activity classification, gesture recognition, people counting,
through the wall sensing, behind the corner sensing, and many other
applications. The challenges and interesting future directions are also
highlighted
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