Acoustic Orientation Measurement With Dynamic Frequency Switching
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Solution Overview
Problem
Existing acoustic wave-based orientation measurement solutions struggle to balance auditory experience and effective distance, with high-frequency waves causing limited effective distance due to obstruction and poor auditory experience at low frequencies.
Innovation Solution
A terminal device dynamically adjusts its acoustic wave frequency based on signal strength and distance information to switch to a target frequency band that optimizes both auditory experience and effective distance for orientation measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an acoustic wave with higher frequency is used for orientation measurement, then auditory experience is improved, but effective distance is reduced
Solution Approach 1:
The patent implements dynamic frequency switching between first and second frequency bands based on real-time signal strength and distance information. The system transitions from a static frequency selection approach to a dynamic adaptation mechanism that adjusts the acoustic wave frequency according to environmental conditions, thereby resolving the contradiction between auditory experience and effective distance.
Solution Approach 2:
The system changes the frequency parameter of the acoustic wave dynamically based on measured signal strength and distance. By adjusting this key parameter according to environmental feedback, the system optimizes both auditory experience and effective distance, transforming a fixed-parameter system into an adaptive one.
2Length of stationary object
If an acoustic wave with lower frequency is used for orientation measurement, then effective distance is increased, but auditory experience deteriorates
Solution Approach 1:
The system dynamically selects between first and second frequency bands based on real-time conditions. When distance information indicates far-range measurement needs, the system switches to the first frequency band for extended effective distance, while automatically transitioning to the second frequency band when closer proximity allows for better auditory experience.
Solution Approach 2:
The frequency parameter is adjusted based on distance and signal strength thresholds. The system changes from using a single fixed frequency to adapting the frequency parameter according to environmental conditions, enabling optimization of both effective distance and auditory experience in different scenarios.
3Device complexity
If a fixed frequency band is used for acoustic wave transmission, then device complexity is reduced, but adaptability to different scenarios deteriorates
Solution Approach 1:
The system incorporates feedback mechanisms by measuring signal strength and distance information, then using this feedback to determine whether to switch between frequency bands. This closed-loop control enables the system to adapt to different scenarios including obstructions and varying distances, transforming a simple open-loop system into an adaptive closed-loop system.
Solution Approach 2:
The system achieves multi-functionality by enabling the acoustic wave transmission device to operate effectively in multiple scenarios (different distances, presence or absence of obstructions) through dynamic frequency band selection. This universal approach allows a single device to handle diverse measurement conditions that would otherwise require different specialized configurations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enhances both auditory experience and effective distance for orientation measurement by adaptively selecting the appropriate frequency band, improving reliability and user experience.
Implementation Method 1
A first terminal device receives and/or sends an acoustic wave signal on a first acoustic wave frequency band, to measure a relative orientation between the first terminal device and a second terminal device
Implementation Method 2
The first terminal device obtains first information. The first information includes first signal strength and distance information
Data Source
AI summary
This application provides an orientation measurement method and a terminal device, to consider both auditory experience and an effective distance for measuring an orientation, and may be applied to a communication system. The method includes: A first terminal device receives and/or sends an acoustic wave signal on a first acoustic wave frequency band, to measure a relative orientation between the first terminal device and a second terminal device. The first terminal device obtains first information, where the first information includes first signal strength and distance information between the second terminal device and the first terminal device. The first terminal device determines a target acoustic wave frequency band based on the first information. The first terminal device switches, if the target acoustic wave frequency band is different from the first acoustic wave frequency band, to the target acoustic wave frequency band to continue receiving and/or sending the acoustic wave signal.