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Bluetooth AOA indoor real-time positioning system

This product is an indoor real-time positioning system based on Bluetooth 5.1+ AOA (Angle of Arrival) technology. It consists of an AOA positioning base station, a low-power positioning tag, a PoE network power supply device, a positioning engine and a management platform. The system calculates the tag angle by measuring the phase difference of the base station antenna array, and combines multi-base station triangulation to achieve sub-meter indoor positioning. It can be stably applied to indoor scenes without GPS signals, and provides real-time location, trajectory playback, electronic fences and data statistics capabilities.

Product Introduction

◆Purely adopts Bluetooth 5.1 CTE standard, supports AOA direction finding, and has a line-of-sight environmental positioning accuracy of 10–30cm (CEP90)

◆The base station has a built-in 12-element antenna array, a single base station covers a radius of 15–30m, and supports two-dimensional/three-dimensional positioning.

◆The tag has ultra-low power consumption, battery life of 1-5 years under normal reporting cycles, and supports SOS and low-power alarms.

◆The base station supports PoE power supply + Ethernet backhaul, is easy to deploy, and is compatible with existing LANs.

◆The positioning engine supports the MUSIC/ESPRIT algorithm, resists multipath interference, and stably outputs an accuracy of 0.3–0.5m in non-line-of-sight environments.

◆The system is compatible with Bluetooth 4.2 and above devices, and can access AOA high-precision tags and ordinary Bluetooth terminals at the same time

Technical Parameters

equipment /system module

Parameter item

Technical indicators

System as a whole

Positioning technology

Bluetooth 5.1+ AOA (Angle of Arrival)

Positioning accuracy (line of sight)

10–30cm(CEP90)

Positioning accuracy (non-line-of-sight)

30–50cm(CEP90)

Positioning refresh rate

1–10Hz (configurable)

Number of base stations deployed in a single area

3–4 units (two-dimensional)/4–6 units (three-dimensional)

Single base station concurrent tag capacity

≥150 (angle filtering on)

Working frequency band /Encryption mechanism

2.402–2.480GHz (ISM band); AES-128 link encryption

AOA positioning base station

antenna array

12-element matrix antenna (two-dimensional direction finding)

Bluetooth version

Bluetooth 5.1 (support CTE/AOA)

coverage radius

15–30m (sight distance, installation height 3–6m)

Data interface

10/100Mbps Ethernet (RJ45)

Power supply method

IEEE 802.3af PoE/DC 12V (optional)

Power consumption

≤15W (single base station)

size /Protection level

220×220×32mm (indoor ceiling type); IP30 (indoor)/IP68 (waterproof optional)

working temperature /Installation method

-20℃~+70℃; Ceiling/wall-mounted (standard mounting bracket)

Bluetooth AOA positioning tag

Bluetooth version

Bluetooth 5.1 (transmit CTE signal)

Transmit power

-40dBm~+20dBm (software adjustable)

reporting cycle

100ms–10s (configurable)

Battery Type

Lithium manganese battery (not rechargeable) / Lithium battery (rechargeable optional)

Battery life

3 years (reported once/second) / 5 years (reported once/10 seconds)

Alarm function

SOS one-click alarm, low battery alarm, anti-tamper alarm (optional)

size /Protection level/operating temperature

85×55×8mm (work card type)/40×30×10mm (asset tag); IP67 ; -10℃~+60℃

Network and power supply equipment

Switch specifications

8-port/16-port PoE switch (IEEE 802.3af)

Single port power supply

15.4W

Transmission distance

Cat5e network cable ≤100m

Protocol support

TCP/IP、DHCP、NTP

Positioning engine and management platform

Solving algorithm

MUSIC/ESPRIT angle calculation + triangulation positioning

Deployment method

local server ( Linux/Windows)/Cloud server

Data interface

HTTP/HTTPS、WebSocket、MQTT

Platform features

Real-time location monitoring, track playback, electronic fence, alarm management, data reporting

Concurrent access

≥1000 units label


Application Scope

It is suitable for indoor scenes without GPS signals such as industrial workshops, smart warehousing, medical and health care, public security offices, commercial buildings, etc., to realize functions such as real-time positioning of personnel/assets, trajectory tracing, electronic fences, security control, and passenger flow analysis.