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Showing posts from May, 2015

Indoor location technology achieving sub-meter accuracy

Indoor location positioning is currently one of the holy grails of the mobile technology world. With hundreds of millions of people using mobile-based GPS applications every day, the demand is clearly huge for location-aware mobile apps. There are over 150 companies developing indoor location technology, and a number of well-known technology approaches, but bottom line, it's still reaching market.

One of the key challenges in developing and deploying indoor location technology is clearly how accurate it is. Many indoor location systems, including those based on Wi-Fi or Bluetooth signals, are accurate only to within 5-8 meters. In many applications this is fine. If I want my phone to know what store or coffee shop I'm in, 5-8m accuracy is sufficient to distinguish Starbucks from JC Penny. But if I want my phone to know if I'm standing in front of the pretzels or the potato chips in the supermarket, I need better.

As a side point, GPS outdoors is only accurate to within 3.5…