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Impinj ships Gen 2 tags; Sysco and others deploy RFID-sensor tags to gauge temperature
Impinj Inc. this week will ship radio-frequency identification tags based on the Gen 2 specification, which can boost read rates up to 1,500 tags per second, five times faster than the current specs. Gen 2 tags can be rewritten multiple times, and they're hardier so they can avert interference sometimes caused by multiple readers. Impinj also is shipping new multiprotocol readers, which can scan tags based on Gen 2 and the Class-0 and Class-1 protocols.
Unilever, UPS, and Qualcomm co-founder Andrew Viterbi are investors in the new chips, says William Colleran, Impinj's president and CEO.
Meanwhile, Alien Technology, 3PL Solutions, and Sysco, a food-service and distribution company, have deployed an RFID-sensor system to monitor temperatures of refrigerated and frozen foods. The system includes reusable, semipassive 4-Kbyte RFID tags.
Three RFID tags have been placed in a truck trailer. Two periodically record the temperature inside the truck, while the third takes more frequent readings but only records them if there's a temperature change.
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