BlueIOT (Beijing) Technology Co., Ltd.
BlueIOT (Beijing) Technology Co., Ltd.

Bluetooth AoA vs. Beacon

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. AoA-based RTLS solutions can be applied to a wide range of scenarios, including healthcare, manufacturing, retailing, transportation, public security, and etc.


Received Signal Strength Indicator (RSSI) refers to the ranging technology based on the relation between distance and signal strength, which is in turn easily affected by a barrier, the direction of antenna, or the power of devices. RSSI devices are small-sized and low energy, usually applied in retailing, hotels, tourist attractions, and etc. Its accuracy stays around 5m.

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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