News & Press: Technology

Bluetooth enhances navigation

08 February 2019   (0 Comments)
Share |

The short-range nav/comms facility has introduced an new facility to greatly improve location services.

Current Bluetooth location services cover: proximity solutions for item finding and point-of-interest information; and positioning systems for real-time location and indoor positioning (RTLS & IPS). Both use trilateration, using received signal strengths from preferably at least 3 Bluetooth sources, to determine position - typically to an accuracy of 1-10 metres.

The new specification uses directional transmission and/or reception aerials - basically a set of simple aerials where the in-phase and quadrature signal at each aerial is determined. These are combined into a ‘phased array’ that can yield the angle-of-departure or -arrival (AoD or AoA) of signals, as well as signal strengths.

This direction-finding location capability claims to improve location accuracy typically to centimetre level.

Bluetooth location services solutions are predicted to be shipping 400 million products per year by 2022.

Details from Bluetooth