Group Control Method for Motor-Driven Screens
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Solution Overview
Problem
Existing group control methods for motor-driven screens with load bars fail to ensure harmonious movement and synchronization, leading to uneven alignment and unpleasing appearance, especially when screens are not initially aligned, which affects synchronization and screening states.
Innovation Solution
A group control method that identifies the furthest deviated screen from a common position and moves it first, synchronizing all screens by aligning their moving ends during opening, closing, or intermediate position movements, ensuring simultaneous movement once alignment is achieved, and allowing for rapid identification and resynchronization of mismatched screens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If all screens move simultaneously from different starting positions, then the operation is simple and fast, but the load bars become misaligned and the appearance is unsightly
Solution Approach 1:
The control system performs preliminary assessment of each screen's starting position relative to the common position before initiating movement. Screens are activated in a predetermined sequence based on their initial positions, ensuring that load bars remain aligned throughout the operation while maintaining efficient overall operation speed.
2Shape
If screens are activated in sequence to maintain alignment, then the appearance remains harmonious, but the operation time increases
Solution Approach 1:
The control system dynamically adjusts the operation sequence based on real-time position feedback from each screen. By continuously monitoring load bar positions and adapting the activation sequence accordingly, the system maintains alignment while minimizing unnecessary delays, optimizing both appearance and operation time.
Solution Approach 2:
Position sensors provide continuous feedback on each screen's load bar position relative to the common position. The control system uses this feedback to determine the optimal activation sequence, ensuring alignment is maintained while avoiding excessive operation time by only delaying activation when necessary for alignment purposes.
3Shape
If the control system waits for all screens to be ready before moving, then alignment is maintained, but the response time to user commands increases
Solution Approach 1:
The system performs preliminary position assessment and pre-calculates the activation sequence when screens are stationary, so that when a user command is received, the screens can be activated immediately in the pre-determined sequence without waiting for alignment checks during operation.
4Device complexity
If screens with different strokes are controlled using a common reference position, then the control method is simple, but screens with shorter strokes cannot reach the common position
Solution Approach 1:
The control system applies local quality by treating each screen individually according to its specific stroke length. Screens with shorter strokes are controlled to reach their maximum travel position, while screens with longer strokes continue to the common position. This localized approach maintains simple control logic while achieving precise alignment for each screen's capabilities.
Data Source
AI summary
According to the method of the invention, the movement of movable screen ends for a group of motor-driven screens to a common position is controlled in a grouped manner. The method includes a step (E150) consisting of moving the end of a screen when said end becomes the farthest from the common position after moving the end of at least one other screen to said common position.