The indoor navigation system is a growing system with a
number of increasing tools such as monitoring ,modeling, and navigational
complexes. David Stea stated in 1974 ,”the idea of constructing a building is
as important as the building itself.”The same is the case with an appropriate
navigation device.
As demonstrated in Figure 1, there are environmental
indications, problems with infrastructure, and user preferences that must be
considered when developing user-friendly indoor navigation systems. This
section revolves around the user-centered context of the harmony, examining the
capabilities, preferences and crossing point problems. A possible modeling
method that can be used is the spatial syntax modeling technique.
Figure 1. Classification of contextual dimensions for indoor
navigation. Reprinted under Creative Commons Attribution 3.0 License from
Afyouni, Ray, and Claramunt (2014).
By the end, we can see
the transition between indoor spaces and outdoor spaces as per the analysis of
(Kray et al.,2013). For instance, the passageways ,central stations, and plazas
were considered indoor spaces by some individuals, whereas the other group of
individuals considered the same places as outdoor spaces.
Kray 2013 tries to make
us understand the transitional processes in the spaces for our better
understanding.
Figure 2. Spatial expressions relating to indoor, outdoor, and
transitional spaces (from Kray et al., 2013).
The indoor areas are not
well-built for receiving navigation based technology due
to their bad positioning . In this case,outdoor spaces are considered better
than indoor ones, whereas indoor appliances are much more required these days such
as Wi-Fi,Bluetooth, RFID, and other audio technologies.
Motivation
In the global navigation
satellite system (GNSS ) ,outdoor areas positioning is already well defined.
GPS is covering
positioning-related issues so far. WIFI is working in accordance with the G.P.S
system. It is an emerging need in the smartphone era. Problems are being faced
regarding the positioning matters in indoor spaces.
Buildings are not caching
most of the satellite signals due to their positioning issues. More smart
applications are required in indoor spaces to catch GPS signals even. GPS does
work more efficiently in moving vehicles, even in outdoor spaces, while the accuracy
in signals has been disturbed mostly in indoor spaces.
Besides the fact, humans
have less mobility at their homes, and their positioning varies most
frequently.Even, at airports and malls , humans keep on changing their
positions while sitting in some restroom area or other recreational places
In short, the indoor
positioning is much more complexed, and it is much more hard to make it capable
of catching the GPS System.
The centralized system in
indoor spaces is not well-equipped for technology . It fails in getting the
right positions for GPS signals even.
An indoor layout plan
GPS technology is being
used by partially blind people for a long time.Now they are getting introduced
to a much-advanced technology through us.
Some popular indoor appliances at our homes, such as Wi-Fi , Bluetooth ,
RFID, and Audio devices, can be used easily to facilitate people with visual
impairments.
We can discuss here the
indoors navigation plan so far.
Deak et al. deal with
positioning issues only.
Indoor positioning
technologies are being discussed here as follows:
There are many RF-Based
and Non-RF based technologies available these days around us. Wifi is a good
example of RF-Based technology in this regard.
Figure 4. Positioning technologies and methods for indoor areas
The
use of Wifi can be discussed in detail as it is receiving more attention in
previous literature and researches. The use of internet and wifi is in the RF
based technologies and audio technologies. The technologies are receiving more
attention due to number of applications in different fields. The signages and
dead reckoning are the major applicatios that are used in the indoor areas and
it work without positioning infrastructure. Besdies these approaches another
approach and use of technology is combination of dead reckoning and RF. Some
other technologies use other methods and approaches that locate the device and
user. Figure 3.1 shows common methodologies that can be used to check the
closeness of the devices as well as users. These applications are used to
ideinfity the time of arrival for the signal. The technology used in the
process for the location of fingerprinting is different and it can be analyzed
by direction of arrival (DOA) and TOA.
The use of technologies is important for positioning of the subsequent
sections. Here objective is to conclude research and conduct comparison of
technolgoies. The research approach consider prototyping, implementation and
performance evaluation.
Indoor Navigation Challenges
for Visually Impaired People
1.
Just think about attempting to find an
unknown building without taking the help of signs which determine where exits
are located, or notices which help in understanding where stairs and elevators
are located, or even warning posts which help in alerting you about an area of
construction or a wet floor. Specifically, what really happens when you are
unable to follow the posts and signs to the exit when an emergency or another
dangerous situation occurs and you have to leave the building? For learning
about an unknown building’s spatial layout or the routes which are best for
exiting a building when an emergency occurs, you might prefer asking a
bystander or friend for help or you might even refer to a 2D or two-dimensional
map for assistance.
2. Let’s
imagine now that you have just entered an unknown building, however, you are
impaired visually. How do you think you would obtain the information that you
require for reaching the destination within an indoor environment about which
you know close to nothing about? Individuals who are impaired visually, are
generally confronted with navigation and wayfinding issues like these
regularly. Considering these issues, new spaces are often not explored by
individuals who are impaired visually and they normally have to depend on hired
experts, family members, or friends when they require to explore an unknown
location. Due to it, their exploration of unknown locations is limited
severely.
3. Several
approaches were utilized by us for understanding the unmet requirements,
challenges, tools, techniques, and processes of individuals who are impaired
visually in terms of navigation and wayfinding. Surveys, interviews, blog
posts, and passive observations are included in these methods. A significant
data set was yielded by these approaches that should be capable of informing
the establishment of more useful and efficient tools of navigation for people
who are impaired visually. In addition, for ensuring an effective process of
need assessment, a working relationship was initiated by us with the BVRSP or
Blind and Vision Rehabilitation Services of Pittsburgh and the WPSBC or Western
Pennsylvania School for Blind Children. Primarily, disseminated needs were
informed primarily by these firms and their networks in this research. The
former one is a nonprofit and private United Way firm that has a belief in
independence through treatment and rehabilitation.
4. BVRSP,
for more than a hundred years, has actually worked with individuals who are
vision impaired, deaf-blind, or blind for assisting them in being independent.
The instructors of firm, a lot of them are impaired visually themselves, offer
instructions to people in important areas. Employment and vocational services
are provided by them along with employment and programs about low-vision
rehabilitation. Actually, we worked with various adults who were impaired
visually or blind from BVRSP and their existing network for informing this
process.
5. When
it comes to A to B navigation, there is no need for users to type in their
actual or current position. In a similar manner, they don’t have to think about
counting turns or doors. They can get their position as they move across the
building on the map. Important alerts that are associated with user security
and safety will be delivered in real-time.
6. Additionally,
if the phone of a person is enabled, the system of indoor navigation can be
utilized by it without investing in another device. It doesn’t manner if the
user needs to shop in a department store or supermarket, users can easily
identify their way and direction through different turns in a simple manner. In
general, indoor navigation is a fundamental platform of technology which
doesn’t need the users to update to up-to-date and modern devices for enjoying
services.
The
technology used in the indoor navigation is depednet on the wifi and it provide
accurate and unmatched conditions where the GPS systems is not working. Evidently,
the GPS system can produce vague outomces when used in the indoor applications.
The trick is to use combination of building blueprints under available
technologies. The use of Wifi is a guarantee that work in the unparallel levels
of accuracy. It is important to use location of mail and user can rely on the
accuracy of system.
There
are vast varieties of indoor navigation platforms and they provide a blind of
favour. The creation of platform is based on compatibility and braillie. The
manufacturers can manage and transform navigation of indoors. The indoor
navigation is an instrument that can find the complex building for instance
Mail. The small rooms in the large MOQ can become extremely difficult for the
manoeuvre. The technology precision allows the company to move in the complex
building that is without the hassle and it will enable the user to perform
different tasks effortlessly.
The
better experience will be provided through INS for VI. It will make the process
easy for the blind shoppers. The process can be faster and convenient for
shoppers and it can find products and stores. The automatic process can be
increased and it will increase brand value and mall loyalty. The
well-integrated system can be used to increase the satisfaction level of
shopper and sales. The system can reduce number of shopper who leave the mail
without having any process to purchase. The process can be frustrated due to
lack of time and users can find products and stores that they are seeking. The
technology can be used to better optimize the space of user and to identify
popular areas of mall. The areas under consideration are football by shoppers
and it allow the mall to run the marketing campaign and access the right target
customers. Proposition value to the State of Qatar
Qatar
is building different cities of future that will be forefront of innovation,
achieve the sustainable development, and enhance quality of life. In line to
the national vision 2030 of Qatar, the country is developing cities of future
and embarking the journey to develop the smart cities. These cities encompass
the smart applications in different areas including mobility, infrastructure,
energy, utilities, buildings and other areas.
In
order to recognize the growing demand of the smart solution of Qatar the government
of Qatar is introducing the smart district. The international industry experts
of Qatar are looking for the active contributors to achieve smart nation
program of Qatar. The ideal platform is based on the smart technology providoers,
urban planners, innovators, entrepreneurs, and industry specialists. The
specialist work to explore the requirements of digital cities of Qatar and
connect the land substantial contracts and local stakeholders.
The implementation of an
accessible wayfinding for people with visual impairments in different kind of
venues is considered as a key project to ensure the inclusion of everyone in
the smart cities. This is will be drive Qatar to a sustainable economic agenda
set forward by Qatar’s Vision 2030.
Aims
of the Project Proposal
The following project
aims to implement the first Arabic accessible wayfinding system for people with
impairments who are facing difficulties in indoor navigation inside the Malls
which impact negatively their shopping journey.
Figure 5. Example of a Mobile App used inside a mall (photo credit: onelectrontech.com)
The aims of the proposed
project are:
• To
implement an accessible wayfinding system for people with visual impairments in
mall
• To
adapt with the international regulations of accessibility and elimination of
architectural barriers for People with Functional imitations (PFL’s).
• To
drive sustainable economic agenda set forward by Qatar’s Vision 2030.
• To
maintain Qatar’s rank in the Dare index (Digital Accessibility Rights Index).
https://www.onelectrontech.com/ips-indoor-positioning-system/