The diagram shows the components of an RFID system. (a) Using the diagram, describe how RFID technology works. [3] (b) Give two applications of RFID. [2] (c...
Question 1 Report
The diagram shows the components of an RFID system.
(a) Using the diagram, describe how RFID technology works. [3]
(b) Give two applications of RFID. [2]
(c) State one disadvantage of RFID. [1]
Answer Details
(a) How RFID technology works, as shown in the diagram:
- An RFID system consists of a tag (containing a microchip and antenna) and a reader that emits radio waves. [1]
- When the tag comes within range of the reader, the radio waves activate the chip on the tag, which transmits its stored data back to the reader via the antenna. [1]
- The reader receives the data and passes it via cable to a computer system with a database for processing and recording. [1]
(b) Two applications of RFID:
- Tracking inventory in a warehouse by attaching RFID tags to products and scanning them as they enter or leave storage areas. [1]
- Automatic toll collection on motorways, where a vehicle's RFID tag is read as it passes through the toll gate without needing to stop. [1]
(c) One disadvantage of RFID:
The cost of RFID tags and readers is higher than barcode systems, making initial implementation more expensive for businesses with large numbers of items to track. [1]
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