Sensor-Guided Audio Notification Control for User Presence
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Solution Overview
Problem
Existing notification systems struggle to effectively notify users of audio content due to environmental noise or user engagement, leading to difficulty in recognition and increased power consumption.
Innovation Solution
A notification system that uses sensors to determine user presence and noise levels, controlling audio content notification based on user availability in the space, ensuring notification only when the user is ready to listen and reducing unnecessary notifications to conserve power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If notification device continuously notifies audio content, then user notification coverage is improved, but power consumption increases and notification effectiveness decreases in noisy or unattended environments
Solution Approach 1:
The system performs preliminary sensing of the space before notification to detect user presence and noise levels. This preliminary action allows the controller to decide whether to proceed with notification, avoiding unnecessary power consumption while ensuring effective notification when conditions are appropriate.
Solution Approach 2:
The system continuously senses the space for user presence and noise levels, using this feedback to dynamically control notification output. The controller adjusts notification behavior based on real-time environmental feedback, optimizing both power consumption and notification effectiveness.
2Productivity
If notification device outputs audio content regardless of user presence, then notification frequency is improved, but notification effectiveness decreases due to environmental noise or user unavailability
Solution Approach 1:
The system performs preliminary sensing to detect user presence and noise levels before notification. This ensures that notifications are only sent when the user is actually present and able to receive them, improving notification effectiveness while maintaining appropriate frequency.
Solution Approach 2:
The system changes the notification parameter (audio output) based on sensed conditions. When user presence is detected and noise levels are acceptable, the system switches to active notification mode; otherwise, it remains in standby mode, optimizing both frequency and effectiveness.
3Reliability
If notification device uses sensors to detect user presence, then notification effectiveness is improved, but device complexity increases
Solution Approach 1:
The sensing unit serves multiple functions: detecting user presence, measuring noise levels, and providing environmental data for notification control. This multi-functionality justifies the added complexity by delivering multiple benefits from a single component addition.
Solution Approach 2:
The sensing unit acts as an intermediary between the notification device and the environment. It collects environmental data and presents it to the controller, which then makes informed notification decisions. This intermediary approach simplifies the overall system architecture while improving effectiveness.
Data Source
AI summary
A notification system includes: an obtainer that obtains an audio content to be notified of and a result of sensing by a sensor that senses a space in which a notification device is located; a determiner that determines whether a first user ready to listen to the audio content notified of by the notification device is in the space, based on the result of the sensing; and a controller that performs first control of controlling notification of the audio content by the notification device depending on whether the first user is in the space. In the first control, the controller: causes the notification device to notify of the audio content, when the first user is in the space; and prevents the notification device from notifying of the audio content, when the first user is not in the space.