Bluetooth Positioning Performance
As the long-time product manager for all of Broadcom’s indoor positioning technologies, the extent of Bluetooth® technology’s success has still exceeded my expectations. Yet, despite the scope of successful deployments, there remain a number of misconceptions about Bluetooth positioning performance. For example, Bluetooth positioning accuracy is perceived to be inferior to other technologies. However, the afore-mentioned athlete tracking and vehicle keyless entry products require high accuracy and low latency, so there is already existence proof in the market showing that Bluetooth technology can meet stringent requirements. Similarly, Bluetooth technology is viewed as insufficiently reliable and interference-tolerant to function in critical industrial and enterprise applications. But again, a large number of factory and hospital asset tracking deployments similarly provide existence proof of Bluetooth technology’s viability in those spaces.
At the other end of the spectrum, there is a tendency to downplay the clear advantages that Bluetooth® technology brings to location services applications. If we take the examples of vehicle keyless entry and personal asset trackers, both rely on the broad Bluetooth ecosystem to create successful products. For keyless entry, it was critical to have compatibility with every smartphone on the market, and only Bluetooth Low Energy, which has shipped in virtually every smartphone over the last decade, provided that level of ubiquity. In the same vein, item tracking relies on the sheer size of the Bluetooth ecosystem to maximize the opportunities for detecting tags regardless of their location. The inherent advantages of Bluetooth technology, in particular simplicity, low cost, and backwards compatibility, made it the only technology that location services developers could design around.
Watch The Myths & Facts about Bluetooth® Technology as a Positioning Radio, and get a deeper look into how Bluetooth technology meets the high-accuracy positioning performance needed by commercial and industrial environments.
Bluetooth Channel Sounding - A Step Towards 10-cm Ranging Accuracy for Secure Access, Digital Key, and Proximity ServicesBluetoothチャネルサウンディング ～セキュアアクセス、デジタルキー、近接サービスに活用できる10cm単位の測距精度へ前進～
Through Channel Sounding, the distance between two Bluetooth Low Energy devices can be estimated more accurately than with existing techniques, down to 10cm accuracy.