125 research outputs found
Enhancing depth cues with AR visualization for forklift operation assistance in warehouse.
With warehouse operations contributing to the major part of logistics, architects tend to utilize
every inch of the space allocated to maximize the stacking space. Increasing the height of
the aisles and narrowing down the aisle-aisle space are major design issues in doing so. Even
though forklift manufacturing companies introduced high reach trucks and forklifts for narrow
aisles, forklift operators face many issues while working with heavy pallets. This thesis focused
on developing a systemthat uses Augmented Reality(AR) to aid forklift operators in performing
their pallet racking and pick up tasks. It used AR technology to superimpose virtual cues over
the real world specifying the pallets to be picked up and moved and also assist in operating the
forklift using depth cues. This aims to increase the productivity of the forklift operators in the
warehouse. Depth cues are overlaid on a live video feed from a camera attached to the front of
the forklift which was displayed using a laptop to the participants.
To evaluate the usability of the system designed, an experiment was conducted and the performance
results and the feedback from the participants was evaluated. A remote controlled toy
forklift was used to conduct the experiment and a motion tracking system was set-up to track
the cab and pallet. Simple pallet handling tasks were designed for the participants and their
performance and feedback was collected and analysed. This thesis shows how AR offers a simple
and effecient solution for the problems faced by forklift operators while performing pallet
handling tasks in warehouse
Intelligent Sensor Networks
In the last decade, wireless or wired sensor networks have attracted much attention. However, most designs target general sensor network issues including protocol stack (routing, MAC, etc.) and security issues. This book focuses on the close integration of sensing, networking, and smart signal processing via machine learning. Based on their world-class research, the authors present the fundamentals of intelligent sensor networks. They cover sensing and sampling, distributed signal processing, and intelligent signal learning. In addition, they present cutting-edge research results from leading experts
Design for Accessibility: A Cultural Administrator's Handbook
Contains a guide for integrating older adults and people with disabilities into all aspects of an arts organization -- from planning and design to marketing and technical assistance
NASA Tech Briefs, November 1990
Topics: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences
A Universal Vacant Parking Slot Recognition System Using Sensors Mounted on Off-the-Shelf Vehicles
An automatic parking system is an essential part of autonomous driving, and it starts by recognizing vacant parking spaces. This paper proposes a method that can recognize various types of parking slot markings in a variety of lighting conditions including daytime, nighttime, and underground. The proposed method can readily be commercialized since it uses only those sensors already mounted on off-the-shelf vehicles: an around-view monitor (AVM) system, ultrasonic sensors, and in-vehicle motion sensors. This method first detects separating lines by extracting parallel line pairs from AVM images. Parking slot candidates are generated by pairing separating lines based on the geometric constraints of the parking slot. These candidates are confirmed by recognizing their entrance positions using line and corner features and classifying their occupancies using ultrasonic sensors. For more reliable recognition, this method uses the separating lines and parking slots not only found in the current image but also found in previous images by tracking their positions using the in-vehicle motion-sensor-based vehicle odometry. The proposed method was quantitatively evaluated using a dataset obtained during the day, night, and underground, and it outperformed previous methods by showing a 95.24% recall and a 97.64% precision
Seventh Annual Workshop on Space Operations Applications and Research (SOAR 1993), volume 1
This document contains papers presented at the Space Operations, Applications and Research Symposium (SOAR) Symposium hosted by NASA/Johnson Space Center (JSC) on August 3-5, 1993, and held at JSC Gilruth Recreation Center. SOAR included NASA and USAF programmatic overview, plenary session, panel discussions, panel sessions, and exhibits. It invited technical papers in support of U.S. Army, U.S. Navy, Department of Energy, NASA, and USAF programs in the following areas: robotics and telepresence, automation and intelligent systems, human factors, life support, and space maintenance and servicing. SOAR was concerned with Government-sponsored research and development relevant to aerospace operations. More than 100 technical papers, 17 exhibits, a plenary session, several panel discussions, and several keynote speeches were included in SOAR '93
Proceedings of the Third International Mobile Satellite Conference (IMSC 1993)
Satellite-based mobile communications systems provide voice and data communications to users over a vast geographic area. The users may communicate via mobile or hand-held terminals, which may also provide access to terrestrial cellular communications services. While the first and second International Mobile Satellite Conferences (IMSC) mostly concentrated on technical advances, this Third IMSC also focuses on the increasing worldwide commercial activities in Mobile Satellite Services. Because of the large service areas provided by such systems, it is important to consider political and regulatory issues in addition to technical and user requirements issues. Topics covered include: the direct broadcast of audio programming from satellites; spacecraft technology; regulatory and policy considerations; advanced system concepts and analysis; propagation; and user requirements and applications
Social work with airports passengers
Social work at the airport is in to offer to passengers social services. The main
methodological position is that people are under stress, which characterized by a
particular set of characteristics in appearance and behavior. In such circumstances
passenger attracts in his actions some attention. Only person whom he trusts can help him
with the documents or psychologically
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