SYSTEM: One to five PDAs tracking up to 50 tags.
APPLICATIONS: Tracks groups of people - first responders, military, and children.
ADVANTAGES: Totally mobile, works indoors and in urban environments, and
less expensive than GPS and more flexible than GPS.
SYSTEM: Laptops or PDAs can locate hundreds of people/objects.
APPLICATIONS: Hospitals, factories, prisons, military bases, etc.
ADVANTAGES: Less than 20% the cost of Active RFID systems.
Does not require fixed infrastructure.
Flexible to use and modify.