Air cleaning system
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Solution Overview
Problem
Existing air cleaning systems are ineffective in rapidly sensing and responding to local fine dust pollution, especially when the pollution source is remote from the air cleaner, leading to delayed purification and reduced effectiveness.
Innovation Solution
An air cleaning system with remote sensor hubs that measure local dust concentrations and a controller that calculates averages, compares them to reference values, and adjusts the air blowing direction and intensity of circulators to quickly respond to pollution sources, distinguishing between cooking and non-cooking pollution sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a dust sensor is disposed in the air cleaner itself, then the air cleaner can sense fine dust near its location, but it takes a significant amount of time for the dust sensor to sense generation of fine dust or cannot sense generation of fine dust when the pollution source is at a remote position
Solution Approach 1:
The system divides the sensing function into two parts: a remote sensor hub located near potential pollution sources (e.g., kitchen) for early detection, and the main dust sensor in the air cleaner for confirmation and continuous monitoring. This segmentation allows the system to detect pollution earlier while maintaining accurate measurement capability.
Solution Approach 2:
The sensor hub acts as an intermediary between the remote pollution source and the main air cleaner. It detects fine dust concentrations in advance and transmits this information to the air cleaner, enabling the system to respond before pollution reaches the main sensor location, thus reducing response time without sacrificing measurement precision.
2Reliability
If the air cleaner responds to pollution detected by its own dust sensor, then it can purify air in its immediate vicinity, but effectiveness is insufficient when the pollution source is at a position not related to the human active area or at a far distance
Solution Approach 1:
The system adds a spatial dimension to pollution detection by placing sensor hubs in multiple locations (e.g., kitchen, living room) rather than relying solely on the air cleaner's single location. This multi-location sensing network enables the system to detect and respond to pollution sources regardless of their position in the indoor environment, enhancing both reliability and adaptability.
Solution Approach 2:
The sensor hub is designed with multi-functionality: it detects fine dust concentrations, identifies pollution sources (cooking vs. non-cooking pollution), and transmits this information to the air cleaner. This universal sensing capability allows the air cleaner to adapt its purification strategy to various pollution scenarios, improving both effectiveness and versatility.
3Productivity
If the air cleaner supplies purified air in a dispersed manner to multiple areas, then it can maintain general air quality, but it cannot rapidly purify a specific polluted area
Solution Approach 1:
The air blowing device is designed with dynamic control capability, allowing it to switch between dispersed air supply mode (for general air quality maintenance) and concentrated air supply mode (for rapid purification of specific polluted areas). The controller adjusts the air blowing direction and intensity based on real-time pollution data from sensor hubs, enabling the system to adapt its operation mode to match the pollution situation, thus achieving both high productivity and ease of operation.
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 immediately senses local pollution, significantly reduces the time gap between pollution detection and response, and rapidly purifies indoor air by supplying purified air in a concentrated manner to the pollution source, enhancing air quality control.
Implementation Method 1
a sensor hub spaced from the air cleaner and configured to sense pollution in a corresponding area
Implementation Method 2
an air cleaner spaced from the sensor hub and configured to change an air blowing direction toward the sensor hub based on the pollution sensed by the sensor hub
Data Source
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AI summary
The present disclosure relates to an air cleaning system that rapidly senses occurrence of local pollution, caused by fine dust, through a remote sensor hub and supplies purified air to a polluted area in a concentrated manner, thereby quickly purifying indoor air.