Have a few factors why to build RFID[1] Smart Guideline for Blind People. The main factor to do this
project because have a lot of commercial product for navigation
which provide with direction or navigation but not suitable because cannot use it in buildings. For
example is GPS[2].
GPS is not suitable for visually impaired users to know the directions or
navigation and locations but more suitable for normal people (1) . Other factors are we know that most disabled people among
low-income people and they prefer to do their things independently.
Most
visually impaired people rely on other people, their dogs, and their walking stick to know the navigation in
buildings. Besides that, many
disabled people prefer to be an independence people. However, have several
navigation products for blind people use obstacle
detection is available in
international market but they are very expensive and it is difficult to use. (2)
Other
than that, Wireless Sensor Networks also difficult and expensive to
monitor data and to control using wired sensors even these products are used in
the world wide such as in industrial, commercial, environmental, and healthcare
applications. (Dishongh, 2009)
RSSI[3]
is means Received
Signal-Strength Indicator or
Indication. RSSI also is a similar product which used in navigation system.
This product also is effective and better than another similar product to
finding locations or distances through signal strength. However, it have
disadvantage or effected by the direction problem. Signal strength very weak in
buildings because buildings made from various materials like stone, metal, wood
and so on. Besides that, buildings have a lot of walls and obstacles. Because
of that, RSSI not accurate and not reliable when the values or
data changes. (3)
Compare
between GPS, obstacle detection, wireless Sensor Networks, and RSSI with RFID, RFID is means Radio Frequency
Identification. It is using radio waves to transfer data from electronic tag.
It is called RFID tag or label. RFID is more accuracy and efficiency than other
similar product. However, RFID is the latest and the largest technology product
to identify and detect locations, objects, humans and animals. Other than that,
that objects can be identified and detected their surface markings are
polluted, fading or removed and even though when they are tightly stay or packed
together. RFID is much more an inexpensive and have good quality products. Besides that, it is more practical than similar product. (Roussos) (Radio
Frequency Identification Technologies: A Workshop Summary, 2004)
Other than that, RFID system based on business also have a lot of benefits.
It is good and fast in tracking application in warehouse. When a business have
a problem which is visibility issues, asset tracking and so on, this technology
can help to solve that problem with an organize to have automatic objects visualization
which is no human intervention. Besides that, if use RFID can minimize the
staff or worker cost who work for scanning bar codes and administrative errors.
RFID used in worldwide
market, like laundry tag, animal tag for bird ring and ear tag and more.
Anywhere, any environment and any application of RFID can be design can be
implementing and can be apply.
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