Blind Navigation System Using Rfid

Topics: Voltage regulator, Flash memory, Crystal oscillator Pages: 39 (9063 words) Published: December 12, 2012



Independent mobility of visual impaired is difficult. Generally, to explore the space, sightless people use other senses (i.e. hearing, touch and smell) to compensate their disability.

In familiar settings they learn how to orientate in the spaces by recognizing known features (points of reference). Nevertheless In unknown environments, navigation often becomes harder or even dangerous. Besides, in pre-designed environments, wherever indoor or outdoor, orientation may also be achieved by perceiving regularities in the objects around.

Blind navigation system using RFID for indoor environment is a project that aims to design and implement a reliable system to assist visually impaired citizen’s independent mobility .The proposed approach foresees to augment the effectiveness and the usability of the aforementioned supports by the exploitation of innovative ICT’s (Information and Communication Technologies) hardware and software components.

More in details the Blind navigation system using RFID for indoor environment solution intends to improve blind and low vision users’ mobility experience by perceptions with hearing aids. The Contactless RFID technology is emerging as the smart choice, delivering strong security features along with convenience, durability, flexibility, and reliability. The existence system won’t support Speech identification(Alarm Based) and not direction based, Blind navigation system using RFID is direction based and more convenient.


➢ To ensure Independent mobility of visually impaired person. ➢ To make a less cost system for blind navigation. ➢ Providing safety with Portable and durable system. ➢ Develop easy system approach for navigation.


The system is implemented with certain enhancement in large public buildings, office buildings, museums and libraries, schools and universities, airports, bus terminals and subways, shopping malls, hotels, hospitals and medical centers, etc. By creating a product that is usable by everyone, cost-effectiveness can be improved .All visitors who need guidance to a specific destination in these settings could profit from the availability of this system.




The first publication on RFID concept is due to Harry Stockman who introduced the basic concept of the “communication by means of reflected power”

➢ During the 1950s several technologies related to the RFID were explored, among them, the very popular transponder system “Identification, Friend or Foe: IFF” for aircraft. The 1960s were the prelude to the RFID explosion

➢ R.F. Harrington developed the electromagnetic theory related to the RFID application

➢ Commercial activities exploiting the RFID began also during the 1960s and the Electronic Article Surveillance (EAS) application is one example. It is “1-bit” tag since only the presence or the absence of a tag can be detected

➢ In the 1970s, and under the impulse of microelectronics, companies, universities and government laboratories were actively engaged in the development of practical applications of RFID. Many examples can be found in, among them animal tracking, vehicle tracking and factory automation. Even if the interest was different between Europe and US, the 1980s was the decade for mass deployment of RFID technology. The interest in the US was mainly for transportation and access control. In Europe the greatest interests were for animal tagging, industrial applications and toll roads.

Since the 1990s many technological developments are dramatically expanding the functionality of the RFID. Advances in microelectronics, RF,...

References: 1. Bahl P and Padmanabhan V. RADAR: “An In-Building RF-Based User Location and Tracking System”. In INFOCOM, pages 775--784, 2000.
2. Blenkhorn P, and Evans D.G., 1997. "A system for enabling blind people to identify landmarks: the sound buoy." IEEE Trans. on Rehab. Eng. 5, 3, 276-278.
3. Brabyn, J., Crandall, W., and Gerry, W., 1993. "Talking signs: a remote signage solution for the blind, visually impaired and reading disabled." Proc. 15th Annual Int. Conf., IEEE Eng. in Medicine and Biology Society, 1309-1310.
3. Hahnel D, Burgard W, Fox D, . Fishkin K and Philipose M. “Mapping and Localization with RFID Technology”. In ICRA, pages 1015--1020, 2004
5.Ward A, Jones A, and Hopper A. “A New Location Technique for the Active Office”. Personal Communications, 4(5):42--47, 1997.
6. Zeiri. “ Total Quality Management for Engineers” Wood Head Publishers, 1991
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