Motorized Screen Control Unit Automatic Positioning
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Solution Overview
Problem
Existing motorized roll-up screen installations require significant human intervention for adjusting and commissioning, leading to a risk of errors due to complex and manual procedures for setting intermediate positions.
Innovation Solution
A method that utilizes an electronic control unit to automatically determine and store target positions for motorized screens, allowing the screen to move to predetermined positions with minimal user intervention, by verifying stored positions and determining parameterization prerequisites through a sequence of movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual adjustment procedures are used for setting intermediate positions, then the screen can be positioned at specific locations, but the complexity of the adjustment process increases and error risk rises
Solution Approach 1:
The system performs self-adjustment by automatically detecting mechanical events (locking mechanism engagement, tilting mechanism activation, projection deployment) during screen movement and storing the corresponding positions in memory. The microcontroller unit autonomously identifies intermediate positions without requiring manual intervention, allowing the system to configure itself during normal operation.
Solution Approach 2:
The system uses feedback from mechanical sensors and position detectors to automatically determine when the screen has reached specific intermediate positions. The microcontroller monitors mechanical events such as locking mechanism engagement and tilting mechanism activation, using this feedback to automatically store the corresponding positions in memory without manual input.
2Measurement precision
If specific control methods are provided for each intermediate position, then precise positioning is achieved, but the number of control elements and operational complexity increases
Solution Approach 1:
A single control element (button) on the remote control unit serves multiple functions: it can initiate automatic positioning to any stored intermediate position, trigger full retraction or deployment sequences, and serve as the universal interface for all screen position control operations. This eliminates the need for separate control elements for each intermediate position.
Solution Approach 2:
The system stores digital copies of intermediate positions in memory, where each position is represented as a stored coordinate or state parameter. Instead of requiring physical control elements for each position, the system uses stored digital representations that can be recalled and executed through a single control interface.
3Extent of automation
If automated control is implemented, then manual intervention is reduced, but the system requires complex electronic control units and sensors
Solution Approach 1:
The system replaces complex manual mechanical adjustment procedures with an electronic control system that automatically detects mechanical events through sensors and position detectors. The microcontroller unit processes sensor signals and automatically stores position data, substituting electronic automation for manual mechanical configuration while keeping the overall system architecture relatively simple.
4Speed
If intermediate positions are stored in memory, then quick access to specific positions is enabled, but the initial setup and programming time increases
Solution Approach 1:
The system performs preliminary automatic detection and storage of intermediate positions during the first normal operation cycle. As the screen moves through its range of motion, the microcontroller automatically detects mechanical events and stores the corresponding positions in memory before user operation begins, eliminating the need for separate setup or programming time.
Data Source
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Figure 4
AI summary
A method for controlling a motorized screen installation that rolls up onto a winding tube and a winding tube actuator, the method comprising an activation step (100), by a user, of a control element for moving the motorized screen to a predetermined target position, characterized in that it comprises, after the activation step (100), a verification step (102) of the storage of the predetermined target position, then: a) if the storage of the target position has been previously carried out, a step of moving the motorized screen to the target position, or b) if the storage of the target position has not been previously carried out, the following sequence of steps is carried out: - determination (106, 110) of at least one parameter prerequisite by a pre-established sequence of movements of the free end of the screen or activations of the motorized screen actuator,and - determination (116) of the target position using the parameterization prerequisites thus obtained.