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RFID overview
RFID relies on the use of small tags or ‘smart labels’, which can be attached to, or embedded within, a wide range of objects. These tags are generally ‘passive’, in that the electrical power for their operation is provided by an electronic ‘reader’, which transfers information to and from a tag and a computing system.
Such information may simply be a unique (and unalterable) identification code, or more sophisticated data that can be written wirelessly into the memory of individual tags, allowing each tagged object to store a small database that can be dynamically updated throughout a product’s lifecycle.
RFID offers many benefits over traditional identification technologies (such as bar codes), including:
- No requirement for ‘line of sight’ - tags can be read (and written) when totally or partially obscured by wood, plastic, glass, paint, oil, dirt, snow, ice and many other materials;
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