Monday, October 3, 2011

RFID chip


While I was thinking of ways to create the phone finder, I was perplexed as to what I would use as the chip that goes on the phone. However, after hearing about RFID in my last lecture I knew that I could use this new technology in order for me to help locate the phone. An RFID, also known as Radio Frequency Identification, is a little chip that can be embedded into almost anything and it contains information. For the sake of the phone locator, the RFID can be used to find the location of the phone.
            There are two types of RFID that can be used, a passive tag or an active tag. The difference between the two is price and distance. The passive tag requires the person to be within 3 meters of the RFID in order for it to pick up the information and therefore this tag is cheaper being only around five cents. An active tag can be read from up to 100 meters away and with a speed of 100 mph. For the phone finder, I would use an active tag because we want the person to be able to find the phone even if they are not near it. If we only get the passive tags then the person must be relatively close to the phone for the invention to work however with the active phone you could be very far from the phone and you would still be able to find the phone.
            This RFID chip has a lot of potential in the industry. While many promote using this, some argue against it because of security issues. If someone has a reader they can pick up someone else’s RFID chip therefore stealing all their information. This is a huge risk and still is being dealt with. For this phone finder, the security of other information is not that big of an issue. We will make sure that you will only be able to pick up your phones information with a certain tracker.

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