Vibration Module Calibration via Frequency Sweep
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Solution Overview
Problem
The vibration point of vibration speakers varies due to different manufacturing methods and structures, leading to potential disabling of the vibration function if the frequency of the vibration signal is not adjusted accordingly.
Innovation Solution
A calibration method and module that transmit multiple vibration signals at various frequencies to detect input currents or power levels, allowing the computation of the vibration point, ensuring the vibration function remains operational despite variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed frequency vibration signal is used, then the device structure is simple, but the vibration function may be disabled due to vibration point variations
Solution Approach 1:
The patent performs preliminary calibration to detect the vibration point of the vibration module before normal operation. By pre-detecting the specific vibration point characteristics and storing this information, the system can later adjust the vibration signal frequency accordingly, ensuring reliable vibration function without requiring complex real-time adjustment mechanisms during operation.
Solution Approach 2:
The patent implements a feedback mechanism where the detected vibration point information is used to adjust the vibration signal frequency. The system measures the actual vibration point, compares it with the current signal frequency, and adjusts the signal to match the detected vibration point, thereby maintaining optimal vibration performance despite manufacturing variations.
2Reliability
If calibration for each vibration speaker is performed, then the vibration function reliability is improved, but the manufacturing process becomes more complex
Solution Approach 1:
The patent enables the vibration module to perform self-calibration by automatically detecting its own vibration point characteristics. The system uses built-in sensors and processing capabilities to measure its own vibration response and determine its specific vibration point, eliminating the need for external manual calibration equipment or complex external calibration procedures.
Solution Approach 2:
The patent changes the operating frequency parameter of the vibration signal based on the detected vibration point. By adjusting the frequency parameter to match the detected vibration point, the system optimizes vibration performance for each individual speaker without requiring physical modifications or complex calibration procedures.
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
Precisely determines the vibration point of vibration modules, preventing performance degradation and ensuring the vibration function remains functional across different configurations and manufacturing variations.
Implementation Method 1
the vibration speaker vibrates according to a vibration signal which may be a sinusoidal signal in a frequency band of 100 Hz-200 Hz
Implementation Method 2
detecting a plurality of input currents or input power level of the vibration module corresponding to the plurality of vibration signals
Data Source
AI summary
A calibration method for a vibration module includes transmitting a plurality of vibration signals corresponding to a plurality of vibration frequencies to the vibration module and detecting a plurality of input currents or input power levels of the vibration module corresponding to the plurality of vibration frequencies; and determining a vibration point of the vibration module according to the plurality of input currents or input power levels.