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RFID technology explained
- Radio Frequency Identification (RFID) uses transponders usually called Tags that have an Antenna and an ASIC (Application Specific Integrated Circuit) with memory.
- RFID uses radio waves to communicate information from a 'Tag' to a 'Reader' via an 'Antenna'. The tag can be described as a small radio transmitter. Using the reader (an electronic device that communicates with the tag) and antenna it is possible to read the data stored on the tag. The data can consist of serial numbers, security and or products codes. When the reader has read the tag data the information is then passed on to a host system.
- Also called proximity cards, no actual contact is necessary for identification to work
- Tags can store data, alphanumeric as well as decimal numbers, both of which can be modified and updated (read/write).
- RFID tags/labels are robust and can work in harsh environments.
- RFID technology has enabled 100% readability of tags / labels.
- Tags are less prone to damage and tampering (unobtrusive).
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Tags do not require line of sight.
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Anti-collision feature in RFID allows many tags to be read simultaneously.
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Tags can be used over and over again.
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oNo measurable interference with mobile phone usage.
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Common applications are your staff ID cards, easi-link transport cards, EssoMobil Speedpasses and vehicular gantry passes.
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