Which would be better to deploy: eight passive tags with a 2-meter (6.6-feet) read range, or just a single passive tag with a read range of 10 meters (32.8 feet)? We would like to locate pallets on a concrete floor, and we want to use eight passive tags per pallet, each of which measures 1 meter (3.3 feet) by 1.2 meters (3.9 feet). The forklift would have a reader and an antenna to detect one of the eight tags as a locator map for the pallets. Right now, we have a plan to deploy more than 13,000 passive tags on the floor. Is there a way to reduce this kind of design? I have told our IT team that it can be done with a one-to-one approach, with a single passive tag as a locator map for each single pallet to be placed or stored within a warehouse. Is this feasible?
I am unsure I understand exactly what you are trying to do with this RFID system. If your aim were to place tags in the floor, and to have a reader deployed under a forklift truck or other vehicle in order to locate that vehicle, then a short read range would be required to obtain accurate location data. A longer-range tag might be read by the truck when it was 5 meters (16.4 feet) from that location. Also, if you were to place more tags in the floor, in a tighter grid pattern, you would be able to locate the vehicle more precisely. If I have misunderstood your application, please feel free to provide more details.
—Mark Roberti, Founder and Editor, RFID Journal
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