A new positioning system invented by a VCU professor delivers where GPS fails

Wei Cheng’s system allows a group of devices to know where they are in relation to one another, and could have hundreds of practical applications, from finding a friend at a concert to locating a Lyft driver at the airport.

A Virginia Commonwealth University computer science professor has developed a system that could change how we find friends in crowded places, Uber drivers in busy cities, and even family spread across a cruise ship.

Unlike GPS, which provides location data based on latitude and longitude, this new system — invented by Wei Cheng, Ph.D., assistant professor in the Department of Computer Science in the College of Engineering — tells users where they are compared to others.

The system allows a group of devices to know where they are in relation to one another, what direction each device is traveling, and how fast each is moving.

“Think of this technology like a swarm of bees,” Cheng said. “The bees all know where the other bees are, and where they’re going.”

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