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 inefficient air distribution.
Innovation Solution
An air cleaning system with remote sensor hubs that measure local dust concentrations and a controller that adjusts the air blowing direction and intensity of circulators to concentrate purified air at the pollution source, distinguishing between cooking and non-cooking pollution sources and adjusting airflow accordingly.
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 for early detection, and the main air cleaner for purification. This segmentation allows the sensor hub to detect pollution at its location while the air cleaner responds by directing purified air to the detected pollution area, resolving the contradiction between sensing capability and response time.
Solution Approach 2:
The sensor hub acts as an intermediary between the pollution source and the air cleaner. It detects fine dust concentration at remote locations and transmits this information to the air cleaner, enabling the air cleaner to respond promptly to remote pollution sources without requiring a sensor at every location.
2Productivity
If the discharge direction of the air cleaner is oriented to a space where a human is present based on human body sensing, then air in the space can be quickly purified, but effectiveness cannot be sufficiently ensured when the pollution source is at a position not related to the human active area or at a far distance
Solution Approach 1:
The air cleaner's discharge direction is made dynamic and adjustable based on real-time pollution detection data from the sensor hub. The circulator can change its orientation to target the specific location where fine dust concentration exceeds the threshold, allowing the system to adapt to various pollution source locations rather than being fixed to human-active areas.
Solution Approach 2:
The system implements a feedback mechanism where the sensor hub continuously monitors fine dust concentration and communicates this information to the air cleaner. The air cleaner then adjusts its discharge direction based on this feedback, creating a closed-loop control system that targets pollution sources effectively regardless of their location relative to human activity.
3Area of stationary object
If purified air is supplied dispersedly to multiple areas, then broad coverage is achieved, but the purification effect at specific pollution sources is reduced compared to concentrated supply
Solution Approach 1:
The circulator operates in periodic cycles, alternating between concentrated mode (targeting a single detected pollution source with high intensity) and dispersed mode (providing broader coverage when no specific pollution source is detected or multiple sources are present). This periodic switching allows the system to optimize between concentrated purification speed and broad coverage area based on real-time conditions.
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 response time, and effectively purifies indoor air by directing purified air to the pollution source in a concentrated manner, improving air quality and efficiency.
Implementation Method 1
a sensor hub spaced from the air cleaner and configured to sense pollution in a corresponding area
Implementation Method 2
a circulator disposed on the discharge portion and configured to change a discharge direction of the air purified by the air cleaner
Data Source
AI summary
An air cleaning system can 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.