Timer Controlled Olfactory Fragrance Dispenser for Accessibility
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Solution Overview
Problem
Conventional air fragrance dispensers emit a single odor that becomes unnoticeable over time and waste energy at night, and traditional time-telling methods fail to accommodate the blind and deaf, relying on visual or auditory interfaces.
Innovation Solution
A timer-controlled olfactory fragrance dispenser that uses different odors as an interface to tell time, combining a controllable odor supply unit with a timing control device to emit specific fragrances at scheduled times, allowing for portable use and integration with conventional time-telling functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional air fragrance dispenser emits a single odor continuously, then the fragrance is consistently present, but the odor becomes unnoticeable over time and wastes energy during night hours
Solution Approach 1:
The fragrance dispenser operates periodically rather than continuously, emitting fragrance during daytime hours when it is most needed and stopping during nighttime. The timer control device switches the dispenser on during the day and off at night, eliminating energy waste while maintaining fragrance availability during active hours.
Solution Approach 2:
The system changes the temporal parameter of fragrance emission by using a timer to control operation hours. It transitions from continuous emission to scheduled intermittent emission, optimizing both energy consumption and fragrance detectability based on usage patterns.
2Loss of energy
If a conventional fragrance dispenser emits a single odor intermittently, then energy is conserved, but the fragrance becomes not fragrant after a given time when people get used to smell it
Solution Approach 1:
The system segments the fragrance emission by using multiple different fragrances instead of a single odor. The timer-controlled dispenser cycles through various scents (e.g., floral, citrus, herbal) at different time intervals, preventing olfactory fatigue and maintaining fragrance effectiveness while conserving energy through controlled emission periods.
Solution Approach 2:
The system changes the chemical parameter of the fragrance by rotating through multiple different odor types. This variation in fragrance composition maintains detectability and user interest while the timer control maintains energy conservation through regulated emission schedules.
3Ease of operation
If a conventional timer uses visual or auditory interfaces, then time telling is clear for most users, but it fails to satisfy the blind and deaf who cannot detect changes in time through these senses
Solution Approach 1:
The system replaces visual and auditory time-telling mechanisms with an olfactory interface. Instead of using clock hands, digital displays, or audible beeps to indicate time, the timer-controlled fragrance dispenser emits distinct fragrances at specific time intervals, allowing blind and deaf users to perceive time passage through their sense of smell.
Solution Approach 2:
The fragrance acts as an intermediary medium to convey time information. Different scents or the presence/absence of fragrance serves as a mediator between the timer mechanism and the user, particularly benefiting those who cannot access traditional visual or auditory time-telling interfaces.
4Adaptability or versatility
If a fragrance dispenser is made portable for personal use, then individual needs are satisfied, but the device complexity increases
Solution Approach 1:
The patent combines multiple functions into a single portable device: timer control mechanism, multiple fragrance reservoirs, pumping system, and olfactory emission components are integrated into one compact unit. This merging allows the dispenser to function as both a time-telling device and a personal fragrance dispenser, achieving portability without excessive complexity through functional integration.
Data Source
Figure 1~3
AI summary
A timer controlled olfactory fragrance dispenser that has the olfaction as the interface to aid time telling while the conventional clock works on the sense of hearing and/or sight as the interface for time telling; providing additional funs and sense of comfort, the present invention allows its user to "smell" the time when he/she is in the dark or in sleeping, and the blind and/or the deaf to "smell" the changes of time; and allowing to be preset for emitting fragrance of different odors, the lapse between two emissions or the concentration of the fragrant; and may be made in a portable form to satisfy personal needs.