In August many of us celebrate National Dog Day to honor our four-legged friends. Technology continues to merge with almost every aspects of our lives and that includes our pets. To be exact, RFID (Radio Frequency Identification) is the technology used in micro-chipping our pets. The specific technology used is Passive RFID, which is relatively inexpensive. Other advantages of Passive RFID are its lifespan (around 25 years) and its size (about the size of a grain of rice), making inserting the microchip a very simple procedure that doesn't require anesthesia.
Passive vs Active RFID
Two basic and very different types of RFID exist, both with unique advantages and disadvantages.
- Passive RFID - A Passive RFID tag does not have a power source within the tag, but instead relies on the RFID reader for power. Because of this simple fact, Passive RFID tags are very inexpensive, making it affordable to tag down to the item level of more than just high-value items.
- Active RFID - On the other hand, an Active RFID tag has a battery within the tag itself, making them considerably more expensive than Passive RFID tags. On the up-side, however, Active RFID tags have very long read ranges.