Adding Sensors to RFID Can Still Reduce Power Needs
In general, asset tracking or logistical management with RFID is very similar to applications in wireless sensor control networks. However, RFID and sensors use wireless connectivity differently.
Wireless sensor networks use small, inexpensive, wireless transceivers integrated into compact sensors that can be used to monitor a wide range of changes like temperature, humidity, vibrations and fluid levels. This data is passed via a gateway to the enterprise net.
Over time, it is expected that wireless sensor networks and RFID will integrate and that RFID systems will be extended and evolve into “Smarter RFID Tags” which can sense, act and display.
More precisely, RFID tags will not create the “Internet of Things;” they will tag the things so the things can become members of the internet.
However, because of this extended functionality and connectivity, these connected RFID tags require greater amounts of energy, and will need to be powered by batteries. At that point, it is clear that the RFID industry will be able to benefit from the ultra low power concept (and its alternative “no-batteries” capabilities) as developed by companies like GreenPeak wireless sensor networks.
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May 7th, 2010 14:11
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