Positioning and Navigation technologies are evolving rapidly and facilities such as shopping malls, healthcare centers, educational campuses, office spaces are adopting this technology as it provides seamless navigation from outside to inside and vice versa.
Location-based services, asset tracking, location bookmarking, etc are made possible by navigation tech other than GPS.
These links have further info on best positioning and navigation technologies - from a technical perspective as well as from a facility angle.
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Over the past decade there are significant improvement and research going on for suitable IPS. However there are many competent technology based on WiFi, Bluetooth, Infrared and IMU to name a few.
Reach of GPS has come as a big boon to the common people. However GPS doesnot work indoors and we often find it very hard o track in the Big shopping malls, airports multi storey buildings etc.
So what is/are the best technology among all the available technologies for indoor positioning?