The Options
There is a lot of discussion of RFID in supply chain. Less discussed is GPS, which has made a huge spash in consumer directions and routing. GlobalTag, produced through a partnership of Numerex and Savi, actually promises to combine both GPS and RFID.
Still, not nearly enough is out there to educate people on when one tracking system should be used over another and how they compare. However, this article on How Stuff Works really does this.
http://electronics.howstuffworks.com/location-tracking2.htm
This article compares and contrasts four different methods of tracking:
- GIS
- GPS
- RFID
- WLAN
- Mobile Phones
This is a good place to start to understand tracking in general.
References
http://www.savi.com/
http://www.numerex.com/dna-application.html
http://electronics.howstuffworks.com/anti-shoplifting-device3.htm
http://www.navtrakgps.com/ppc/gps-tracking.cfm?ls=27&mt_gs=Content&mt_ys={OVMTC:std:adv:cnt}&ctt_id=18938654&ctt_adnw=Google&ctt_kw=gps%20vehicle%20tracking&ctt_ch=ps&ctt_entity=kw&gclid=CLqF6OTd_poCFRMUagod4l9bdQ
