It's not really a question of active tags being better than or recommended over passive tags; they simply serve different purposes.
If your customer wants continuously-updated location info in real time, use active tags and a wi-fi infrastructure. If your customer wants discrete location updates, such as scanning items into inventory when they arrive at a warehouse, use passive tags and RFID scanners. The difference is "where is this item physically located at this moment?" versus "which checkpoint was this item scanned at most recently?" Let the customer decide which question they want to be able to answer and let that drive your design. 2010/7/21 Mohamed Gazzaz <[email protected]>: > Thanks Gabriel and Jennifer. I appreciate the quick answers. So in short and > to sum all the facts up (Please correct me if I am wrong) > > - Passive tags won't work with Cisco wireless equipments. (Unless we buy the > hardware from Reva Systems) > - Passive tags are not part of the Wi-Fi infrastructure and are mainly used > for inventory. > - If money is not an issue, then active tags are recommended to > track employees and assets for the following reasons: > 1- Simplicity (one system or vendor instead of two) > 2- One centralized management system. > 3- Only one Wi-Fi infrastructure will be used to provide Wireless > network (Internet access for employees and guests)and mobility services. > > I know there are some tags vendors who support Cisco CCX , Which vendor do > you recommend ? and is it true that batteries on tags can last up to 4 years > ? > > Regards, > Mohamed Gazzaz > > ________________________________ > From: [email protected] > Date: Wed, 21 Jul 2010 09:22:13 -0500 > Subject: Re: [CCIE Wireless] OT: Passive RFID Tags > To: [email protected] > CC: [email protected]; [email protected] > > Gabriel is correct about passive tags requiring RFID scanners to sense tag > location. Passive RFID deployments are usually used for inventory or > tracking work flow processes rather than tracking the current location of a > given passive RFID tag. AeroScout has a partnership with Reva Systems and > can incorporate the use of passive RFID tags into an existing AeroScout > active RFID tag deployment with the purchase of minimal hardware from Reva > Systems. > It would not make sense however, to deploy a Wi-Fi infrastructure to support > active RFID tags if the ultimate goal were something that could be > accomplished by the use of passive RFID tags. The cost difference between > passive RFID tags (pennies per tag if quantity purchased is large enough) vs > active RFID tags (retail price $60-$75 per tag) usually differentiates the > type of items to be tracked and aides in determining the most cost-effective > tracking solution. > > On Wed, Jul 21, 2010 at 8:33 AM, Gabriel <[email protected]> wrote: > > Passive tags require an active RFID scanner at close range. They're entirely > unsuitable for a location-tracking application as we usually think of it, > and will never interoperate with a standard wifi network. > > On Jul 21, 2010 9:25 AM, "Mohamed Gazzaz" <[email protected]> wrote: > > Hello Wireless experts, > > Does the latest release of Cisco UWN support passive tags ? In general, > Which one would you recommend for a new implementation (Active or passive > tags) ? > > Regards, > Mohamed Gazzaz > > ________________________________ > Hotmail: Trusted email with Microsoft’s powerful SPAM protection. Sign up > now. > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > > > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > > > ________________________________ > Hotmail: Powerful Free email with security by Microsoft. Get it now. _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
