RFID tags are used for many different jobs for example Tesco, in the UK put RFID tags on there trolleys so that if they get nicked, they know where they are. Animal aid agencies in India put RFID tags in their elephants so they can track and prevent illegal trafficking. Another great use is for clubbers at holiday hotspots, the customers can now be injected with RFID tags which then turn into wallets!
RFID tags are made p of two different parts, one is an integrated circuit which stores and processes information and the other is an antenna for receiving and transmitting signals. There are three different types of RFID tags. The first type is a passive RFID tag, this has no power source and requires an external electromagnetic field to initiate a signal. The second type is an active RFID tag, which has a battery and transmits signals once it has found the object it is meant to be transmitting those signals to. The third and last type is a battery assisted (BAP) RFID tag, this needs an external source to start the signal sending but it has a significant higher forward link capability providing much further range.
Jack, you have obviously researched this technology and tried your best to write about your findings. You have provided examples of how the technology is used. However, I would have liked more detail on this e.g. customers being injected with RFID tags, is this true? How is this done? What health and safety issues are there to consider? The images you have used are relevant and appropriate to the text you have written.
ReplyDeleteIt is interesting to read that there are 3 types of Tags maybe you could have explained where each are used.
Well done, I look forward to reading your next post.