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BlueIOT (Beijing) Technology Co., Ltd.

Bluetooth AoA vs. Beacon

Bluetooth AoA  vs. RSSI Beacon Technology


Bluetooth Angle of Arrival (AoA) and Received Signal Strength Indication (RSSI) beacon technology are both used for indoor location tracking, but they differ in several ways.


Angle of Arrival (AoA)positioning algorithm locates the position of an AoA tag based on the signal's arrival angle. Bluetooth AoA locating system is featured by its sub-meter accuracy, high capacity, high compatibility, low cost and low energy.BLE angle of arrival is particularly useful for indoor localization and asset tracking in healthcare, manufacturing, retailing, transportation, public security, and more scenarios.


Received Signal Strength Indicator (RSSI) beacon technology, on the other hand, uses the strength of the Bluetooth signal to estimate the distance between the beacon and the mobile device. However, it is in turn easily affected by a barrier, the direction of antenna, or the power of devices. RSSI Bluetooth beacon tracking devices are small-sized and low energy, usually applied in retailing, hotels, tourist attractions, and etc. Its accuracy stays around 5m.

 

In summary, Bluetooth AoA technology allows for very precise location tracking, while RSSI beacon technology is widely available, but provides less precise location information. Fortunately, Blueiot Bluetooth AoA can meet your specific needs and the level of precision required for the location tracking.

TechnologyBluetooth AoABluetooth RSSI
Protocol

Anchor: Bluetooth 5.1


Tag: BT 4.0+

Anchor: Bluetooth 4.0+     


Tag: Bluetooth 4.0+

Typical accuracy0.1 ~ 0.5 m5 ~ 10 m
Refresh rateHigh Low
compatibility

Various BLE AoA tags such as mobile phones, bracelets, watches, beacon, etc.

Additional special tags for return channels such as LoRa are required

Tag power consumptionLowHigh
Anchor costGeneralLow
Tag costLowHigh
loT anchor capabilitiesYesNo
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