Chemical Solution Spraying Device With Odor-Responsive Control
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Solution Overview
Problem
Existing chemical solution spraying devices fail to consider the specific conditions of a target space, such as odor concentration and timing, when determining the start timing and spray amount of the spray operation, leading to inadequate odor reduction and inefficient use of chemical solutions.
Innovation Solution
A chemical solution spraying device equipped with an offensive odor concentration sensor and a control unit that adjusts the start timing and spray amount based on the detected odor concentration and other space conditions, using a scent material or neutralizer to modulate or mask the odor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the spray operation starts immediately when offensive odor is detected, then the unpleasant feeling is reduced quickly, but the spray amount may be excessive or timing may be improper for different odor conditions
Solution Approach 1:
The control unit adjusts spray parameters (timing and amount) based on detected odor concentration levels. When odor concentration is high, the system increases spray amount and adjusts timing accordingly, while using smaller spray amounts when odor concentration is low, thus optimizing chemical solution consumption while maintaining effective odor reduction.
Solution Approach 2:
The system continuously monitors odor concentration through sensors and uses this feedback to dynamically control the spray operation. The control unit receives real-time odor concentration data and adjusts spray timing and amount accordingly, ensuring optimal chemical solution usage matched to actual odor conditions.
2Device complexity
If a fixed spray amount is used for all odor conditions, then the device complexity is reduced, but the adaptability to different target space conditions deteriorates
Solution Approach 1:
The control unit dynamically changes spray parameters based on detected odor concentration. The system transitions from fixed parameters to variable parameters that adapt to different odor conditions, enabling the same device to handle various scenarios (high odor concentration, low odor concentration, entry detection) with appropriate spray responses.
Solution Approach 2:
The spray control system transitions from static to dynamic operation. The control unit continuously adjusts spray timing and amount based on real-time odor concentration data, making the system adaptable to changing conditions while maintaining manageable complexity through automated control.
3Loss of substance
If the spray operation waits for high odor concentration threshold, then chemical solution consumption is reduced, but the response time to odor generation increases
Solution Approach 1:
The system performs preliminary spray actions when odor concentration reaches lower thresholds or when person entry is detected, before waiting for high odor concentration peaks. This preliminary action reduces response time while the feedback mechanism ensures chemical solution is not wasted by continuing spray only when necessary based on ongoing odor concentration monitoring.
Solution Approach 2:
The control unit implements periodic monitoring of odor concentration and adjusts spray operation accordingly. The system alternates between monitoring phases and spray phases, using periodic action to balance rapid response with efficient chemical solution usage based on continuous odor condition assessment.
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 unpleasant feelings associated with offensive odors by timing the spray operation and adjusting the spray amount to match the odor conditions, minimizing chemical solution consumption.
Implementation Method 1
an offensive odor concentration sensor (50) configured to detect a concentration of the offensive odor in the target space (S)
Implementation Method 2
a sprayer (20) configured to spray the chemical solution
Implementation Method 3
The scent material deodorizes the target space (S). The 'deodorization' used herein includes 'modulation' and 'masking.'
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A chemical solution spraying device includes: a sprayer (20) configured to spray a chemical solution; and a control unit (60) configured to control at least one of start timing of a spray operation of the sprayer (20) or a spray amount at start of the spray operation of the sprayer (20) based on a condition of the target space (S).