New Futuristic Projects From Intel Research Laboratories
Research does not never stop, so do the Intel laboratories spread out throughout the United States, at various company and University campuses. Last week Intel held an event in New York city where some of the interesting projects being worked on where showed to the attendance. One of the project, using only passive components, wants to find other applications for RFID tags. The RFID (Radio Frequency Identification) is a technology to identify automatically people, animals or objects by the capacity to store or to get data using RFIF labels or tags.
A RFID tag is constituted by a microchip, an antenna and can have a battery also. A tag can receive and transmit the pieces of information contained in the chip to a transceiver RFID via radio-frequency. For its potentiality the RFID technology is considered a general purpose technology. Intel showed a tag with a thermal probe able to send temperature data. A potential use of a tag equipped with a thermal probe is in the agricultural market where it could wirelessly monitor the temperature of the food products in order to eliminate the batches that could have gone bad due to too high, or too low temperatures.
Source: New Futuristic Projects From Intel Research Laboratories
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Passive vs. active RFID
Just an additional info, passive tag RFID is a tag that does not contain a battery, i.e. the power is supplied by the reader. When radio waves from the reader are detected by a passive RFID tag, its antenna forms an electro-magnetic field, which energizes the circuits in the tag. The tag then sends the stored information in the tag's memory. Passive RFIDs are less expensive, smaller and very long useful life, since they don’t need batteries to operate. But the biggest disadvantage is the tag can be read only at very short distances, limiting the use of the device for a number of applications.
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