Air processing system and method
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing air processing systems face challenges in extending the lifetime of sensors and air purifier filters due to exposure to pollutants from indoor activities, which reduces their operational effectiveness and accuracy.
Innovation Solution
An air processing system that utilizes a controller to receive activity status information from home appliances, adjusting operational settings of air quality sensors and purifiers to optimize their operation, such as switching them off or changing sampling rates, and selecting appropriate filtration actions based on the type of pollutant emitted, thereby extending their lifespan and improving accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If air quality sensors and air purifiers operate continuously to monitor and filter indoor air pollution, then air quality monitoring accuracy is maintained, but the operational lifetime of sensors and filters is reduced due to exposure to pollutants from indoor activities
Solution Approach 1:
The system dynamically adjusts the operational state of air quality sensors and air purifiers based on real-time activity status information from home appliances. When cooking or other pollutant-generating activities are detected, the system switches sensors off or reduces sampling rates, and activates purifiers at higher levels, thereby extending sensor lifetime while maintaining air quality monitoring accuracy through conditional operation rather than continuous operation
Solution Approach 2:
The system implements a feedback mechanism where activity status information from home appliances is continuously monitored and used to adjust the operational settings of air quality sensors and purifiers. This closed-loop control allows the system to respond to changing indoor air quality conditions in real-time, optimizing both sensor longevity and air quality monitoring effectiveness by adjusting operations based on actual pollution sources present
2Reliability
If air purifiers operate at high filtration levels to remove pollutants from indoor activities, then air quality is improved, but the operational lifetime of filters is reduced due to faster clogging
Solution Approach 1:
The air purifier operates dynamically with variable filtration levels based on detected appliance activity. When cooking or other pollutant-generating activities are detected, the purifier increases filtration intensity to maintain air quality. When no such activities are present, the purifier reduces or suspends operation, allowing filters to last longer by operating at high capacity only when pollution sources are actively present
Solution Approach 2:
The system changes operational parameters of air purifiers based on activity status information, adjusting filtration intensity and airflow rates according to the type and level of pollutant emission detected. This parameter adjustment allows the system to maintain effective air purification during pollution events while minimizing filter stress during normal conditions, thereby extending filter operational lifetime
3Measurement precision
If sensors operate at high sampling rates to detect pollutant levels accurately, then measurement precision is improved, but the lifetime of sensors is reduced due to accelerated degradation from exposure to pollutants
Solution Approach 1:
The sensor system operates dynamically with variable sampling rates based on detected appliance activity. During cooking or other pollutant-generating activities, sampling rates increase to capture rapid changes in air quality. During normal conditions with no active pollution sources, sampling rates decrease or sensors switch off, reducing exposure to pollutants and extending sensor lifetime while maintaining sufficient detection accuracy through event-driven monitoring
Solution Approach 2:
The system implements periodic sampling of air quality parameters at variable intervals based on activity status. Instead of continuous high-rate sampling, the system performs measurements at strategically determined intervals, reducing overall sensor exposure to degrading pollutants while maintaining adequate detection precision by increasing sampling frequency during periods of active pollution events
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 system effectively extends the operational lifetime of sensors and filters, maintains accurate air quality monitoring, and optimizes filtration actions based on specific pollutant types, enhancing the overall performance and reliability of air processing systems.
Implementation Method 1
These may be based on the measurement of light scattered by the particles that pass along with an air flow through a detection volume in the sensor.
Implementation Method 2
Air purifiers are applied widely to deal with this challenge... using one or more filters
Data Source
Figure 1~2
AI summary
An air processing system comprises an air purifier (10) and/or an air quality sensor (12). One or both is controlled (14), or else sensor information is interpreted,in dependence on activity status information received from a plurality of home appliances (16, 8, 20, 22). This enables the operational life time of components in system to be extended, specifically the sensors and/or air purifier filters. Alternatively or additionally, it enables the air quality sensor information to be interpreted more reliably.