Wireless Earbud Fall Detection for Loss Alerts and Power Saving
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Solution Overview
Problem
The increasing portability and miniaturization of wireless sound devices have led to a higher risk of loss, making it difficult for users to recover them after they are accidentally dropped and moved away from the location of loss.
Innovation Solution
An apparatus and method for wireless sound devices that include sensors to detect falls, calculate falling distance, determine loss based on distance thresholds, and provide customizable loss notifications via light, sound, and vibration, adjusting intensity based on environmental factors and stopping notifications upon device movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless sound devices become smaller for convenience of wearing, then portability and convenience are improved, but the risk of losing them increases
Solution Approach 1:
The device performs preliminary actions by continuously monitoring fall conditions through the sensing unit and pre-configuring notification mechanisms. When a fall is detected, the system immediately activates notification outputs (visual, auditory, vibrational) to alert the user before the device is completely lost, enabling preventive recovery actions.
Solution Approach 2:
The system establishes feedback loops where the sensing unit continuously monitors device status, the control unit processes fall detection data, and notification outputs provide real-time feedback to the user. This closed-loop system ensures the user is informed of loss conditions and can take recovery actions promptly.
2Reliability
If the device provides loss notifications continuously, then user awareness of loss is improved, but power consumption increases
Solution Approach 1:
The notification system operates periodically rather than continuously. The control unit activates notification outputs only when fall conditions are detected or when the device is in specific states (e.g., not worn, significant fall distance). This periodic operation maintains user awareness while significantly reducing power consumption compared to continuous notification.
Solution Approach 2:
The notification intensity and duration are dynamically adjusted based on detected conditions. The control unit varies notification parameters (intensity, duration, type) according to the severity and context of the fall detection, providing sufficient user awareness while minimizing unnecessary power consumption during less critical situations.
3Reliability
If the device outputs loss notifications with high intensity, then user awareness is improved, but power consumption and energy waste increase
Solution Approach 1:
The system changes notification parameters (intensity, duration, type) based on detected conditions. The control unit adjusts notification strength according to fall distance, device state, and environmental factors, providing sufficient user awareness while avoiding excessive energy waste from uniformly high-intensity notifications in all situations.
Solution Approach 2:
Different notification outputs (visual, auditory, vibrational) are selectively activated based on local conditions and device state. The control unit determines which notification types are most effective for the current situation, optimizing energy efficiency by using only necessary notification channels rather than activating all outputs at full intensity.
4Reliability
If the device detects movement after loss notification, then false alarms are reduced, but response time for loss prevention is delayed
Solution Approach 1:
The system performs preliminary notification immediately upon detecting fall conditions, before verifying whether the device will be recovered. This preliminary action ensures timely user awareness and prevention efforts, while subsequent movement detection serves to confirm loss status and adjust notification accordingly, reducing false alarms without significantly delaying the initial response.
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
Effectively reduces loss incidents by notifying users promptly and minimizing power consumption through adaptive loss alerts, enhancing usability and reducing false alarms.
Implementation Method 1
a sensing part sensing the fall of a wireless sound device
Data Source
AI summary
The present disclosure relates to an apparatus and method for preventing loss of wireless sound device capable of recognizing a fall and preventing loss, the apparatus including: a sensing part sensing the fall of a wireless sound device; a communication part communicating with at least one device; a loss notification part outputting a loss notification of the wireless sound device; and a control part controlling the communication part and the loss notification part, in which the control part can calculate the falling distance of the wireless sound device from the sensing signal of the sensing part, determine whether the wireless sound device is lost based on the calculated falling distance, if the wireless sound device is lost, control the loss notification part to output the loss notification, and if movement of the wireless sound device is recognized from the sensing signal of the sensing part after the output of the loss notification, control the loss notification part to stop outputting the loss notification.