3,766 research outputs found
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
Multisensor navigation systems: a remedy for GNSS vulnerabilities?
Space-based positioning, navigation, and timing (PNT) technologies, such as the global navigation satellite systems (GNSS) provide position, velocity, and timing information to an unlimited number of users around the world. In recent years, PNT information has become increasingly critical to the security, safety, and prosperity of the World's population, and is now widely recognized as an essential element of the global information infrastructure. Due to its vulnerabilities and line-of-sight requirements, GNSS alone is unable to provide PNT with the required levels of integrity, accuracy, continuity, and reliability. A multisensor navigation approach offers an effective augmentation in GNSS-challenged environments that holds a promise of delivering robust and resilient PNT. Traditionally, sensors such as inertial measurement units (IMUs), barometers, magnetometers, odometers, and digital compasses, have been used. However, recent trends have largely focused on image-based, terrain-based and collaborative navigation to recover the user location. This paper offers a review of the technological advances that have taken place in PNT over the last two decades, and discusses various hybridizations of multisensory systems, building upon the fundamental GNSS/IMU integration. The most important conclusion of this study is that in order to meet the challenging goals of delivering continuous, accurate and robust PNT to the ever-growing numbers of users, the hybridization of a suite of different PNT solutions is required
LOCATION-BASED MARKETING: CONCEPTS, TECHNOLOGIES AND SERVICES
siirretty Doriast
Location-based Marketing: the academic framework
Dissertation submitted in partial fulfillment of the requirements for the Degree of Master of Science in Geospatial Technologies.Over the last several years one could observe revolution in location-based
technologies and geospatial information. Location awareness of mobile devices
resulted in development of Location-Based Services (LBS) that are realization of that
revolution in the most personal and contextual way. The ability to reach consumers
in the highly targeted manner based on spatio-temporal criteria, attracted marketers
from the early beginning of LBS creating field called Location-Based Marketing.
Today decreasing prices of smartphones and wireless internet, as well as integration
of location-aware mobile solutions and social media is leading to new possibilities
and opportunities. The academic and professional interests of the author made him noticed that
although the industry has challenged a significant development, there is lack of
publications that would put an academic framework on that progress. The research
has fulfilled this gap by extensive investigation of the current state of the art of
Location-Based Marketing and its foundations - Location Based Services.
The dissertation provides academic framework by comprehensive analysis of the
Location-Based Marketing from LBS and marketing perspective. Further the thesis is
addressing the issue of significant discrepancy between theoretical concepts of
measurable Location-Based Social Media data and the actual data than can be legally
accessed and used for marketing analysis purposes by investigation a case study of
Location-Based Social Network - Foursqaure and Location-Based Analytics platform
VenueLabs
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