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The Differences Between RFID and RTLS
While both help in identifying particular locations, there are various differences between the two technologies.
RFID vs. RTLS
One problem with using RFID is that a user cannot determine if a product is situated to the left or right of a wall, since radio frequency signals cannot penetrate through floors, walls or ceilings. Infrared technology, in order to work flawlessly, needs a clear line of sight, as any hindrance in the field of sight can block signals, thereby leading to slightly distorted results. To obtain improved results, infrared can be combined with active RFID so that the technology can read through walls and other obstacles.
Ultrasound does not perform as well as the other options when it comes to a communication mechanism, due to its longer wavelengths that make it slower when compared to infrared. Wi-Fi is clearly the preferred technology used in the majority of locations, but its accuracy is limited to only 30 feet, which limits its popularity when it comes to tracking locations.
What Makes RTLS So Precise?
Both of the technologies discussed above are great ways of assisting security professionals in determining the location of an object or person. While RTLS needs no intervention and manages to carry out automatic location readings to give precise locations of individuals or objects, RFID, on the other hand, detects if a tagged object has passed through a fixed designated stationary point. It does not necessarily report the current location that a business looks for, but will deliver last-seen results, thereby making it unsuitable to track down assets and personnel. Both RTLS and RFID technologies are great security solutions to aid in tracking the locations of people and items.
Simon Parker has more than 70 years of shared experience with Minerva Security, dealing with commercial business security and fire alarm systems.
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