新製品
New Product

2021/04/19

Bluetooth® Low Energy Multi-antenna Module for Radio Wave Angle-of-Arrival Detection

Bluetooth® Low Energy Multi-antenna Module for Radio Wave Angle-of-Arrival Detection

For position measurement indoors where GPS is not available, conventionally a three-point measurement using Received Signal Strength Indication (RSSI) is widely used. As an alternative  technology, Hosiden has developed a Bluetooth low energy type multi-antenna module which enables directional detection using AoA (Angle of Arrival), released in Bluetooth 5.1.

The module incorporates six antennas, each of which receives radio waves and calculates the angle-of-arrival based on phase differences using an exclusive Hosiden algorithm. By eliminating erroneous detection due to multipath components and minimizing noise, the antenna array enables stable detection of the communicating party direction whether it is stationary or moving, covering a range of ±75° from the front side of the module.

A UART interface is included to control the module. Using this interface, Bluetooth connection and detection processes can be started or stopped from external host devices.



Product Name and Model Number

[Product Name]

Bluetooth® Low Energy multi-antenna module for AoA

[Model Number]

 HRM1087-010010

Evaluation kit: HRM1087 Master receiver

         HRM3012 Slave transmitter (with battery box)

         USB-UART conversion cable

         Demonstration application for Windows10

 

 


Principal Features

・Detects the direction of the connected party

・Improved accuracy in direction detection due to proprietary hardware and software design

・Control from external host devices is available using UART commands

 



Application

・Indoor position measurements (for monitoring, life log recording, warehouse management)

・Electronic lock (hands-free keys)

・Smart key receivers





Production and Sales Plan

Evaluation kit sales start

August, 2021

Price of evaluation kit

800,000 JPY (tax not included)

 





Main Specifications

Item

Specification

 Bluetooth chip Texas Instruments CC2642R1FRGZ

Power voltage



2.5 to 3.8V

Detection angle

 ±75°
Number of antennas  6
 External dimensions 129 x 195 mm typ.
Interface UART



Please click here for questions to us
https://www.hosiden.com/en/contact.html