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How Can I Restrict Which Employees Take Their Laptops Out of the Office?
Is it possible to tag the laptops and then use readers at exit points to monitor whether workers leave with a computer? Such a system would need to offer 100 percent accuracy.
It is possible to tag laptops and place readers at building exits to determine whether someone is leaving with a laptop. Cognizant Technology Solutions, a global IT, consulting and business-process outsourcing services company, installed a solution to track employee laptops (see Eating Your Own Dog Food: Cognizant Uses RFID to Track Laptops). The company performed testing to choose a tag that could be read reliably, and could probably provide the software you need to track your computers.
Achieving 100 percent read rates is not easy with passive tags, as the human body can prevent energy from reaching the tag. When that happens, the tag cannot respond to the reader. New Haven Public Schools opted to use active RFID tags that broadcast a signal (see New Haven Public Schools Keeps Tabs on Laptops). Active tags are more expensive, but they are more reliable since they have a battery and can broadcast like a cell phone.
—Mark Roberti, Founder and Editor, RFID Journal
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