Motorized Roller Shutter Slat Orientation Control
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Solution Overview
Problem
Existing methods for adjusting roller shutters with motorized adjustable slats are complex and prone to errors due to the need for precise positioning and frequent recalibration, especially as the shutters wear out, leading to inconsistent slat orientation and limited user control over light intake.
Innovation Solution
A method that simplifies the adjustment process by using a visually identifiable reference position, such as a maximum vision position, to record and reproduce the slats' orientation, allowing for intuitive control and adaptation to elongation, with additional steps to determine extreme and intermediate positions based on dimension data, and utilizing an actuator control unit for precise movement and orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a complex sequential adjustment procedure is used to determine multiple extreme positions and intermediate positions, then the precision of slat orientation control is improved, but the device complexity and ease of operation deteriorate
Solution Approach 1:
The patent extracts the essential reference needed for slat orientation control by identifying only one critical position (the position where the slat is parallel to the building facade) rather than requiring determination of multiple extreme positions and intermediate positions. This simplifies the adjustment procedure while maintaining control precision.
Solution Approach 2:
The control unit automatically performs preliminary calculations to determine all necessary intermediate positions based on the single recorded reference position and known dimensional parameters. This eliminates the need for manual adjustment of multiple positions while ensuring precise slat orientation control.
2Measurement precision
If multiple extreme positions and intermediate positions are determined through sequential adjustment steps, then the control precision of slat orientation is improved, but the adjustment time and ease of operation worsen
Solution Approach 1:
The control unit performs preliminary automatic calculations of all intermediate positions based on the single recorded reference position and stored dimensional data. This eliminates time-consuming manual adjustment steps while ensuring precise slat orientation control through automated position determination.
Solution Approach 2:
Instead of manually adjusting and recording multiple physical positions, the system uses a single physical reference position recording and automatically generates all other position data through calculation. This copying approach from one reference point dramatically reduces adjustment time while maintaining precision.
3Adaptability or versatility
If the shutter is adjusted to accommodate elongation during wear, then the adaptability to wear-related changes is improved, but the manufacturing precision and consistency of slat positioning deteriorate
Solution Approach 1:
The system dynamically adapts to shutter elongation by allowing re-recording of the reference position at any time during operation. The control unit recalculates all intermediate positions based on the new reference, automatically compensating for wear-related dimensional changes while maintaining consistent slat positioning precision.
Solution Approach 2:
The system provides feedback mechanisms allowing the reference position to be re-recorded based on actual shutter condition. This feedback loop enables the system to adapt to wear and elongation while maintaining manufacturing precision through automatic recalculation of positions based on updated reference data.
Data Source
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Figure 3a~4
AI summary
The method involves positioning orientable strips such that the orientable strips extend parallely to a visually detectable horizontal plane in a reproducible manner. The current position of the orientable strips is recorded as a single reference position. An extreme orientation position of the orientable strips or a position of the strips relative to a mechanical tilter (8) is determined from the reference position based on adaptable dimension data such as thickness and height of the strips, diameter of a winding tube (3) and/or dimensions of the tilter. Independent claims are also included for the following: (1) a method for operating a motorized roller blind installation (2) a control unit for controlling an actuator of a motorized roller blind installation, comprising an actuator activation control part.