Door Pressure Sensing for Predictive Seal Maintenance
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Solution Overview
Problem
Existing door systems in sealed rooms struggle to reliably maintain air tightness, making it difficult to predict when maintenance is needed and ensuring proper sealing, especially under varying air pressures.
Innovation Solution
A door operation management system using sensors to measure internal and external air pressures, generating control signals to adjust door operation based on pressure differences, and providing maintenance alerts when thresholds are exceeded.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If door seals are used to prevent air leakage, then air tightness is improved, but the seal wears out over time due to air pressure exposure and repeated door operations
Solution Approach 1:
The system performs preliminary monitoring of air pressure differences across the door seal before failures occur. By continuously measuring pressure differential and comparing it against threshold values, the system detects early signs of seal degradation and schedules maintenance before the seal completely fails, extending its effective service life.
Solution Approach 2:
The system establishes a feedback loop where air pressure sensors continuously monitor the pressure differential across the door, this information is processed by a control unit, and when thresholds are exceeded, maintenance alerts are generated. This closed-loop feedback enables proactive maintenance scheduling based on actual seal performance data.
2Reliability
If door operation is manually monitored, then maintenance can be scheduled, but it is difficult to predict when maintenance is needed and ensure proper sealing
Solution Approach 1:
The door sealing system performs self-monitoring through integrated air pressure sensors that automatically detect pressure differential changes. The control unit processes this data autonomously and generates maintenance alerts without requiring manual inspection, enabling the system to service itself and providing predictable maintenance scheduling based on actual performance.
3Object-affected harmful factors
If air pressure difference is large between inside and outside the room, then particulate entry is prevented, but the door seal experiences increased stress and may leak
Solution Approach 1:
The system continuously monitors air pressure differential and provides feedback to the control unit. When the pressure difference exceeds predetermined thresholds, the system generates maintenance alerts, enabling proactive replacement of the door seal before stress-induced failures occur, thus maintaining both particulate prevention and seal durability.
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 predictive maintenance and improved air tightness by automatically adjusting door operation and sealing, ensuring consistent performance and reducing air leakage.
Implementation Method 1
at least a first sensor device configured to obtain at least a first air pressure data based on an air pressure on the inside of a door and at least a second air pressure data based on an air pressure on the outside of the door
Data Source
Figure 1a~1b
Figure 2a~2d
Figure 3~5
AI summary
A system, method and computer program product for controlling the operation of a door (1) to a room, the method comprising (S1) obtaining at least a first air pressure data (1ap) based on an air pressure on the inside of the door (1), (S2) obtaining at least a second air pressure data (2ap) based on the air pressure on the outside of the door (1), and (S5) determining at least a first air pressure difference data (1apdd) based on the difference between the at least first air pressure data (1ap) and the at least second air pressure data (2ap), and in a determination that the at least first air pressure difference data (1apdd) is outside of a predefined value, or a predefined value interval, generate a control signal (CS) for controlling the operation of the door (1).