Motion-Responsive Alarm Sound Playback for Faster Wake-Up
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Solution Overview
Problem
Conventional alarm devices take too long for a user to wake up and perform a stop action due to solely emitting an alarm sound, necessitating an improved method to expedite waking.
Innovation Solution
A sound playback device that includes a clock, detection, calculation, and determination parts to detect and calculate movement, playing different sounds based on motion conditions, adjusting volume, and stopping or resuming playback based on specific conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If only an alarm sound is emitted, then the device complexity is low, but the time required for the user to wake up and take action is too long
Solution Approach 1:
The alarm device dynamically adjusts the alarm sound based on detected user movement. When movement is detected, the system transitions from playing only the alarm sound to playing both alarm and action induction sounds simultaneously, and later to playing only action induction sounds. This dynamic adaptation accelerates the user's waking process while maintaining reasonable device complexity through software-controlled sound playback variations.
Solution Approach 2:
The alarm device implements periodic sound playback with distinct phases: an initial alarm sound phase, followed by an action induction sound phase triggered by movement detection. The system periodically evaluates movement conditions and transitions between sound playback modes, creating a structured temporal pattern that effectively wakes the user without requiring continuously complex hardware.
2Productivity
If different sounds are played based on motion conditions, then the user responsiveness is improved, but the device complexity increases
Solution Approach 1:
The alarm device integrates multiple functions into a single system: timekeeping, movement detection, and conditional sound playback. The sound playback unit serves multiple purposes by dynamically selecting between alarm sounds and action induction sounds based on movement detection results. This multi-functionality improves user responsiveness while avoiding the need for separate dedicated devices for each function.
Solution Approach 2:
The system implements a feedback loop where the movement detection unit continuously monitors user movement and feeds this information back to the sound playback unit. Based on this feedback, the system adjusts the sound playback strategy in real-time, playing action induction sounds when movement is detected to accelerate the user's response. This feedback mechanism enhances productivity without requiring proportionally complex hardware architecture.
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 device effectively wakes users by varying sound playback based on movement, reducing the time needed to wake and take action, enhancing user responsiveness.
Implementation Method 1
a detection part configured to detect an object in a non-contact manner
Data Source
AI summary
A sound playback device includes: a clock part for measuring time; a storing part configured to store an alarm time; a detection part configured to detect an object in a non-contact manner; a calculation part configured to calculate a magnitude of movement of the object based on detection results; a determination part configured to determine whether a motion condition is satisfied, the motion condition being satisfied when a magnitude of movement of the object is greater than or equal to a certain magnitude; and a sound playback part configured to start a first sound playback processing to play a first sound when the measured time reaches a time determined in accordance with the alarm time, and start a second sound playback processing to play a second sound when the determination part determines that the motion condition is satisfied during execution of the first sound playback processing.