Bluetooth Low Energy Voice Signal Reception with Dynamic Angle Adjustment
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Solution Overview
Problem
Bluetooth devices, especially those without displays or user interfaces, face complexity in connection management and signal reception due to the increasing intricacies of Bluetooth communication, and there is a need for a method to adjust device positions and angles for optimal voice signal reception in wireless communication systems.
Innovation Solution
A method and apparatus for a control device to receive voice signals in a short-range wireless communication system, involving the measurement of declination angles between devices, adjustment of device positions, and calibration of audio signal output angles to ensure optimal signal reception using Bluetooth low energy technology.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If Bluetooth Classic (BR/EDR) method is used for voice signal transmission, then transmission speed and audio quality are improved, but power consumption increases
Solution Approach 1:
The patent dynamically switches between Bluetooth Classic and Bluetooth Low Energy modes based on operational requirements. The system uses BLE for initial device discovery, connection establishment, and control signaling (low power mode), then transitions to Bluetooth Classic only when high-quality voice transmission is required (high performance mode). This dynamic mode switching resolves the contradiction by adapting the transmission protocol to the specific operational context.
Solution Approach 2:
The patent segments the Bluetooth communication process into distinct functional phases: device discovery phase (using BLE), connection management phase (using BLE), and voice transmission phase (using Bluetooth Classic when needed). By dividing the communication workflow into segments that can use different protocols optimized for their specific functions, the system achieves both low power consumption during control operations and high quality voice transmission when required.
2Use of energy by moving object
If Bluetooth Low Energy is used for device connection and control, then power consumption is reduced, but transmission speed and audio quality deteriorate
Solution Approach 1:
The system dynamically adjusts the communication protocol based on the operational phase. During device discovery, connection setup, and control operations, BLE is used to minimize power consumption. When voice signal transmission is initiated, the system transitions to Bluetooth Classic to ensure adequate transmission speed and audio quality. This dynamic adaptation allows the system to optimize power consumption without permanently sacrificing transmission performance.
3Measurement precision
If device position and angle adjustments are implemented for optimal voice signal reception, then audio quality is improved, but device complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where the control device receives voice signals from audio devices, measures the signal quality and direction, and automatically adjusts the audio device positions and orientations to optimize reception. The system continuously monitors the audio signal characteristics and makes real-time adjustments to device angles and positions, creating a closed-loop control system that improves audio quality without requiring complex manual configuration by the user.
Solution Approach 2:
The control device automatically performs position and angle optimization for audio devices without requiring user intervention. The system self-adjusts the spatial configuration of connected audio devices based on received signal characteristics, eliminating the need for manual setup procedures and reducing the operational complexity for users while achieving optimal audio reception quality.
Data Source
AI summary
In the present disclosure, a method comprising: receiving a first advertisement message for measuring a declination angle between devices; measuring each declination angle between a reference point set in the control device and positions of at least one device based on the first advertisement message, wherein the positions of the at least one device are respectively adjusted such that each declination angle satisfies a specific angle for receiving a voice signal, based on the measured respective declination angles; receiving each of a first voice signals based on the respective adjusted positions from the at least one device; and measuring a volume of the received first voice signal, respectively, wherein based on the measured volume, an audio signal output angle of the at least one device is adjusted such that an audio signal received by the control device is incident at right angles to the control device.