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السبت، 2 يونيو 2018

RFID And Pulling The World Into The Future

By Ruth Fisher


It used to be that in order to keep track of something, one had to use their eyes. Once it was out of sight, it was practically lost. But as society evolved, so did the tools used by humanity. Nowadays, keeping track of something is as easy as slapping a tag on it and using a CSL RFID reader connected, wirelessly or otherwise, to a computer.

Radio frequency identification, or RFID as it is more commonly known, is a system for the wireless reading of information. This is done via the use of tags which store information which an RFID reader then identifies. A passive tag will have no power source of its own and will instead rely on taking energy from radio waves emitted by a reader. An active tag will have more range and will have a power source such as a battery.

Ultra high frequency, more commonly referred to as UHF, are the frequencies at which many of the most essential systems in the world operate. A lot of things like cell phone coverage, GPS, and even Wi-Fi all operate on UHF. Many RFID readers are tuned to ultra high frequencies.

Now, RFID tags have numerous security applications. In places where doors are automatically locked, like a hotel room, an RFID chipped card is pretty much the only way to open it. RFID tags can also be used in stores as items can be chipped to alert staff and security if someone tries to bring them out without paying for them.

RFID tags can also be used to track animals. Many pet owners will tag their fur babies, so that if they get lose, finding them becomes easier. Zoos will also tag their animals to make sure that they remain where they are supposed to be.

Like a lot of technology, the speculations regarding the future are endless. It is hypothesized that using an RFID reader and a tag can make shopping much easier. It works by having readers at the door. Each item in the store is tagged. When a person exits with their items, the reader then takes note of all the tags as well the credit card and then the credit card is automatically charged for the cost of all the items, eliminating the need for checkout lines and cashiers. A lower scale version of this is already present in some countries, with people using their phones to pay for items instead of cards of cash. There are also some medical application, as it is speculated that the chips can be turned into dust and then injected into the human bloodstream in order to monitor the health of a person. Then there are those who fear that the same technology used to keep track of animals can be applied to human beings.

Picking an RFID reader is as easy as simply going out and buying one. Like any other piece of tech, the market is flooded with all kinds. A customer is practically spoiled for choice.

Like anything else, price should be considered. RFID readers can cost hundreds of dollars for even the cheapest variant. The investment is good, but it is still a considerable one. Some RFID readers will have to stay outdoors. As such finding a durable one is key. A weak one will break easily and necessitate another purchase.

Time flies. Human kind must fly with it. The future and the technology therein are inevitable.




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