As their name implies, active tags are internally powered so they can broadcast a low level radio “beacon” carrying the asset description. Your asset tracking software must then receive the RFID reads, record that information, and update the database accordingly.Īctive RFID is the next level up in terms of performance (and cost). A pallet of tagged boxes passing through a portal-mounted reader, for example, records all the boxes simultaneously. In either case, it’s unnecessary to scan each piece of inventory individually. Passive RFID scanners can take the form of handheld units or fixed-position readers set up at entrances and exits. Under ideal conditions, a passive RFID tag can be detected and read from as far as 30 feet between the tag and the scanner, and you don’t need line of sight, so you can detect tags you can’t access easily with a barcode laser. The advantages of a passive RFID tag over a barcode are range and speed. This is an important distinction from active. Passive RFID is a standard, meaning you can mix and match tags with reader hardware. Often, passive RFID tags also sport traditional barcodes so that they can be read with both an RFID reader and – if necessary – a barcode scanner. The reader itself powers the chip, which means the passive chip lasts forever. These passive chips must be near a “reader” to be read. Passive tags have tiny internal, unpowered chips that are programmed with data, typically the ID of the asset for asset tracking purposes, but they can store additional data as well. RFID tags come in two basic forms: passive and active. The benefits of the codes are still the same, but they support easier scanning with smart device cameras. The most current barcodes are “QR Codes,” which we’ve all seen. They were magic forty years ago, but not today. Technology Overviewīarcodes are straightforward. I responded, “It depends.” But in more fully answering his question, we explored some important basics to be considered before committing to an RFID investment. As prices drop on RFID technology, the benefits become more and more realistic.Ī customer recently asked me how much he should spend on asset tags and should they do barcode, passive or active RFID. Not surprisingly, IT Asset Managers have been asking more and more about the use of RFID to reduce the time and effort tracking assets, especially by implementing RFID technology in as many places as possible.
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