Emulation to 666

Monday, 14 November 2011 21:16

11/14/2011 The Universal

Guillermo Cardenas Guzman

Imagine that after completing their purchases and not have to make long lines at the cashier: on leaving the store a radio signal "sweeps" while stacked products in the cart and record the amount of the debt, which will be charged to your account or credit card.

Another day goes to work and the doors open automatically when a system identifies you as an employee, either in the parking lot or at the reception, a database maintains the updated record of their inputs, outputs and delays.

This scenario is part of daily life within a few years ago, when radio frequency identification systems (RFID in English, which have marginal uses, such as automatic toll paying motorways) is widespread, according to scientists and engineers anticipate specialists .

"RFID technology and has many years but due to the high cost of receivers hardly used and now has gone down," said Jorge Cortes Galicia, School of Computing (ESCOM) of IPN. This system operates like a radar, the transmit and receive radio signals "bounce" in a tag with information.

In addition, says researcher and professor of engineering polytechnic in computer systems, the frequency with which RFID operates (around 2 GHz) does not interfere with other electronic devices and allows for safer handling compared to other systems, such as codes of bars.

Applications

Unlike bar codes, which require a label without spots or erasures, RFID allows identification much faster and efficient because decodes the information from many sources at the same time and even tens of meters, without placing the label "line" with the reader.

The labels or RFID tags store up to 3 times more information than a barcode and can be read even when they are inside a cardboard box, plastic or other container. In developed countries like EU and its use is common in the location of cars, animals, financial records and inventories of companies.

In Mexico the use is still in its infancy by some companies, such as for tracking and location of cars or automatic payment of tolls on highways. "I really hardly have RFID technology in developing national and most is based on components purchased abroad, especially to America," says Professor Cortés.

However, since the tags can be placed on phones, books, computers, antennas, identification cards and many other everyday objects, it is expected that its use is widespread in the country as production costs continue to decline.

To date, the cost of a transponder or tag ranges between 5 and 50 and even $ 100 (depending on model and if it has its own power or not). They are fabricated on silicon substrates, but in the near future is expected to use plenty of nanomaterials or very cheap plastic films.

Also in Mexico

In Mexico, a group of IPN researchers led by Dr. Cortes test the application of RFID systems for identification of motor vehicles at the entrance and exit to a parking area about 320 thousand square meters.

The area is located on the premises of Zacatenco (DF) of the IPN, the middle of three academic units: (ESCOM, the Center for Computer Research and Development Centre for Innovation and Technology in Computing).

"Basically we have three receiving antennas RFID with which we are monitoring the entry and exit of vehicles. We can also monitor and determine the exact location of every vehicle through a computer system, "says Cortez.

The IPN academic believes this project (for which all components developed) moves, but recognized that one of its limitations is the short distance can be covered, as the range that covers each of the antennas is 150 to 300 meters .

In this paper, called Trisquel and already has its own database, the students also participate Elizabeth Yazmin Gomez Patino, Tania Maria Beciez Cambray, and Professor Antonio Gustavo Juárez Gracia, all of the ESCOM

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