Bluetooth enhances support for location services with new direction finding feature
Wednesday January 30, 2019. 10:06 AM , from Mac Minute
The Bluetooth Special Interest Group (SIG) has announced a new direction finding feature that it says holds the potential to significantly enhance the performance of Bluetooth location services solutions. The new feature allows devices to determine the direction of a Bluetooth signal, thereby enabling the development of Bluetooth proximity solutions that can understand device direction as well as Bluetooth positioning systems that can achieve down to centimeter-level location accuracy.
Bluetooth location services solutions generally fall into two categories; proximity solutions and positioning systems. Today, proximity solutions use Bluetooth to understand when two devices are near each other, and approximately how far apart.
They include item finding solutions such as personal property tags, as well as point-of-interest (PoI) information solutions like proximity marketing beacons. By including the new direction finding feature, Bluetooth proximity solutions can add device direction capability. For example, an item finding solution could not only let a user know when a personal property tag is nearby, but also in what direction, greatly enhancing the user experience.
Positioning systems use Bluetooth to determine the physical location of devices and include real-time locating systems (RTLS), such as those used for asset tracking, as well as indoor positioning systems (IPS), like those for indoor wayfinding. Today, Bluetooth positioning systems can achieve meter-level accuracy when determining the physical location of a device. By adding the new the direction finding feature, these positioning systems could improve their location accuracy down to the centimeter-level.
“Location services is one of the fastest growing solution areas for Bluetooth technology, and is forecasted to reach over 400 million products per year by 2022,” says Mark Powell, Bluetooth SIG Executive Director. “This is great traction and the Bluetooth community continues to seek ways to further grow this market with technology enhancements that better address market needs, demonstrating the community’s commitment to driving innovation and enriching the technology experience of users worldwide.”
The direction finding feature is included in version 5.1 of the Bluetooth Core Specification, which is available to developers as of today, and can be found here. In addition, Launch Studio, the Bluetooth SIG tool used to qualify new Bluetooth products, is being updated to support this feature and is available to developers.
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