Adaptive Low-Energy Warning for Hearing Devices
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Solution Overview
Problem
Conventional hearing aids lack an adaptive low-energy warning system that accurately predicts battery depletion, often resulting in excessively long or short warning durations, which can lead to unexpected loss of power and inconvenience for users.
Innovation Solution
A hearing device equipped with a power source charge state monitoring unit, a timing unit, and a control unit that adjusts the low-energy warning mode duration based on the current output voltage value, allowing for customizable threshold settings and adaptive adjustments to fit user needs, ensuring timely notification of battery depletion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed low-energy warning threshold is used, then the warning system is simple to implement, but the warning duration is not adaptive to different usage patterns, resulting in either excessively long or short warnings
Solution Approach 1:
The patent implements dynamic adjustment of the low-energy warning threshold based on actual battery depletion timing. The system measures the duration between warning activation and actual power loss, then automatically adjusts the threshold voltage or timing parameters to achieve a target warning duration (e.g., 30 minutes to 2 hours), transforming a static system into an adaptive one
Solution Approach 2:
The system performs self-calibration by automatically measuring its own performance (warning duration vs. actual battery life) and adjusting its parameters without user intervention. The control unit monitors battery voltage and usage patterns, then autonomously optimizes the warning threshold to match user needs, eliminating the need for manual configuration
2Reliability
If the low-energy warning is activated too early, then users have ample time to replace batteries, but the warning duration becomes excessively long causing inconvenience
Solution Approach 1:
The system incorporates feedback loops where the control unit monitors actual battery depletion timing and compares it against the warning activation time. Based on this feedback, the system adjusts the warning threshold to optimize the warning duration, ensuring it is neither too early (excessively long warning) nor too late (unexpected power loss)
3Loss of time
If the low-energy warning is activated too late, then the warning duration is short, but users may experience unexpected power loss and loss of hearing ability
Solution Approach 1:
The system activates the low-energy warning in advance of actual battery depletion by monitoring voltage thresholds and predicting remaining battery life based on usage patterns. This preliminary warning allows users sufficient time (configurable from 30 minutes to several hours) to replace batteries before complete power loss occurs, ensuring continuous hearing function
4Measurement precision
If conventional fixed threshold warning is used, then manufacturing is simple, but the warning does not accurately predict remaining battery life for different usage scenarios
Solution Approach 1:
The system dynamically changes operational parameters (warning threshold voltage, warning timing) based on measured battery characteristics and usage patterns. By adjusting these parameters according to actual performance data, the system achieves accurate battery life prediction across different usage scenarios without requiring complex manufacturing
Data Source
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AI summary
The present invention regards a hearing device (10, 10') comprising a power source (22), a control unit (24), a power source charge state monitoring unit (28), a timing unit (31), and an output unit (18). The hearing device (10, 10') is configured to be worn on or at an ear (36, 38) of a user. The power source (22) is configured to power the hearing device (10, 10'). The power source charge state monitoring unit (28) is configured to monitor the charge state of the power source (22) by determining a current output voltage value (64, 64') of the power source (22). The timing unit (31) is configured to measure a duration between two points in time. The output unit (18) is configured to generate output sounds (54) corresponding to electrical sound signals (48, 50). The control unit (24) is configured to activate a low-energy warning mode, if the current output voltage value (64, 64') determined by the power source charge state monitoring unit (28) is below a predetermined threshold output voltage value (66, 66', 70, 70', 72, 72') of the power source (22). The control unit (24) is further configured to adjust the predetermined threshold output voltage value (66, 66', 70, 70', 72, 72') in dependence of a duration of the low-energy warning mode. The control unit (24) operating in the low-energy warning mode is configured to generate electrical low-energy warning signals. The receiver (32) unit and the transmit (34) unit are configured to exchange the electrical low-energy warning signals with one or more auxiliary devices.