RFID System to Pool Vehicle Data

I was watching the evening news earlier and I got hooked on the headline: the use of RFID system to document key data of all the vehicles in the country. I watched and listened intently to see if they were getting at the right points, and to my surprise they quite did. They were able to explain the basics of the system, and they answered questions of privacy invasion correctly. Yes, it is true that RFID readers have limits to reading the tags registered to the database because the primary factor that limits the reading distance is the Inverse Square Law, that is, when applied to power, the power density received from a point varies inversely with the square of the distance from the source. And if the source is taken as isotropic, it radiates the signal equally in all directions so that the covered space of the radiated signal at any given time takes the form of a sphere. So if an RFID tag radiates 1 watt, considering only free space loss, the reader will receive 80 mW at a distance of 1 m and only 20 mW at 2 m. This means that as the distance is doubled, the signal is reduced to a quarter.

So much for the math. What I'm just trying to point out is that distance alone is a safe point for disproving the ability of the system to track vehicles at great distances. What bothers me is the price of the card that contains the tag. P350 is too much for a supposedly cheap RFID tag together with the all the production costs. That is if commissions are excluded. Then if it includes that, it's not anymore confusing why that card costs that much. But beware, possibilites for invasion of that privacy are endless because every important detail could be transcoded to that chip, including name, address, blood type, physical attributes, SS number, bank account number, credit card number, etc. That is if the government runs through the archives of its agencies and include all of those details to your RF card. Well, that is just for the worst case scenario.

Before I end this cloud, I just want to say something about RFID that might happen in the future. If time comes that you need to have your tag or chip or whatever you want to call it placed at the back of your hand or at your forehead, no matter what happens, don't apply for it. It might lead you to a place where redemption is never possible.