Olfactory Display Fragrance Concentration Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing olfactory displays struggle to control fragrance concentration due to constant injection amounts and lack of specific methods for adjusting fragrance component concentrations.
Innovation Solution
An olfactory display system that alternately or simultaneously emits fragrance and odorless air through separate emission ports, with an emission control module adjusting the operating time periods and emission amounts to control the mixing ratio, allowing for precise adjustment of fragrance concentration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If fragrance is pulsively injected with constant injection amount, then injection simplicity is maintained, but fragrance concentration control capability deteriorates
Solution Approach 1:
The patent applies dynamics by making the injection amount variable rather than constant. The control unit adjusts the injection amount of fragrance based on the desired concentration, allowing the system to adapt injection parameters dynamically. This resolves the contradiction by enabling both operational simplicity (through automated control) and concentration precision (through variable injection amounts).
Solution Approach 2:
The patent changes the parameter of injection amount from fixed to variable. By allowing the injection amount to be adjusted according to concentration requirements, the system achieves precise fragrance concentration control while maintaining operational simplicity through automated parameter adjustment.
2Illumination intensity
If fragrance emission portion operates continuously, then fragrance intensity is maintained, but concentration control capability deteriorates
Solution Approach 1:
The patent applies periodic action by alternating between fragrance emission and odorless air emission. The control unit switches between these two modes, creating a periodic cycle that allows concentration control through duty cycle adjustment. This resolves the contradiction by maintaining fragrance intensity through periodic emission while achieving concentration control through the ratio of fragrance emission time to total cycle time.
3Manufacturing precision
If mixing ratio of fragrance and odorless air is adjusted, then fragrance concentration control is achieved, but system complexity increases
Solution Approach 1:
The patent uses dynamics by implementing a control unit that dynamically adjusts the duty cycle based on desired concentration levels. This automated dynamic adjustment achieves precise concentration control without requiring complex manual mixing mechanisms, resolving the contradiction between control precision and system complexity.
Solution Approach 2:
The patent changes the control parameter from physical mixing ratio adjustment to temporal duty cycle control. By controlling the ratio of fragrance emission time to total cycle time, the system achieves concentration control through parameter change rather than complex mechanical mixing, reducing system complexity while maintaining precision.
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
Enables uniform presentation of fragrances with controlled concentrations, enhancing the sensory experience by accurately managing fragrance intensity in synchronization with audio-visual content.
Implementation Method 1
a fragrance emission portion that is provided in an inside of the housing and configured to emit a fragrance from the emission port
Implementation Method 2
presents to a user a fragrance in addition to a content that includes an image and sound
Implementation Method 3
a first air emission portion that is provided in an inside of the housing and configured to emit odorless air from the emission port
Implementation Method 4
it is possible to uniformly present the fragrance with a concentration that is controlled according to a mixing ratio of the fragrance and the odorless air
Implementation Method 5
an emission control module configured to make the fragrance emission portion and the first air emission portion operate alternately or simultaneously
Data Source
AI summary
An olfactory display includes a housing and a plurality of fragrance chambers formed in the housing. In each fragrance chamber, a solid-like fragrance source is accommodated and an airflow source is provided to send air into the fragrance chamber from an air intake port. An auxiliary airflow source that emits odorless air is also provided in the housing. The airflow source and the auxiliary airflow source are operated alternately or simultaneously. In response to a user operating an adjustment knob of a controller, operating time periods and stopping time periods of the airflow source and the auxiliary airflow source are changed, or the number of operating times is changed within a predetermined operating time period. A mixing ratio of the fragrance and the odorless air may also be adjusted by changing a voltage value of an alternating voltage to be applied to a piezoelectric device of the airflow source.