Optical Module Positioning via Color Recognition
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Solution Overview
Problem
Image processing devices without sensing elements struggle to accurately position optical modules after power failures or interruptions, leading to potential collisions and increased material costs for replacement sensing elements.
Innovation Solution
An optical module positioning method using color recognition to determine the position of the optical module on a scanning platform, divided into four regions, allowing for accurate positioning without the need for a sensing element, thereby avoiding collisions and reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a sensing element is installed to detect the optical module position, then the positioning accuracy is improved, but the device complexity and cost increase
Solution Approach 1:
The patent removes the sensing element from the system entirely. Instead of detecting the optical module's position through a physical sensor, the system uses color recognition of characteristic charts to determine position. This extraction eliminates the complexity and cost associated with sensing element installation while maintaining positioning functionality through an alternative method.
Solution Approach 2:
The patent replaces the mechanical sensing system with an optical recognition system. Rather than using a physical sensing element to detect position, the system uses color recognition technology to identify characteristic charts and determine the optical module's position based on the scanned color information.
2Productivity
If the optical module is moved back to initial position after power failure, then the scanning operation can be resumed, but collision with casing may occur without sensing element
Solution Approach 1:
The patent performs preliminary positioning through color recognition before the optical module moves to the initial position. By identifying the current position through characteristic chart recognition and color analysis, the system can determine the safe movement path and distance, preventing collision while enabling resumption of scanning operations after power failures.
Solution Approach 2:
The system uses color recognition feedback to continuously monitor the optical module's position relative to characteristic charts. This feedback mechanism allows the system to adjust the movement control of the optical module, ensuring it returns to the initial position safely without colliding with the casing, thereby maintaining productivity while preventing damage.
3Measurement precision
If sensing element is used for position detection, then positioning function is achieved, but material cost and replacement cost increase
Solution Approach 1:
The patent replaces expensive sensing elements with inexpensive color recognition technology. The characteristic charts used for position detection are simple printed patterns that can be easily manufactured and replaced if needed, significantly reducing material costs compared to physical sensing elements.
Solution Approach 2:
The system creates a visual copy of position information through color recognition of characteristic charts. Instead of using physical sensing elements that detect position directly, the system captures an optical copy of the characteristic chart colors and processes this information to determine position, eliminating the need for expensive sensing hardware.
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 accurate positioning of the optical module within the image processing device, reducing the risk of damage and material costs associated with sensing element replacement, while maintaining efficient scanning operations.
Implementation Method 1
the optical module projects a light beam to the document to be scanned. After the reflected light beam from the document is received, the scanned image of the document is acquired by the optical module
Implementation Method 2
acquire a scanned image while the optical module is not moved. Then, if a color value of a first end of the scanned image and a color value of a second end of the scanned image are in a first color range or a second color range
Data Source
AI summary
An optical module positioning method for an image processing device is provided. The image processing device includes a scanning platform and an optical module. The scanning platform includes a first region, a second region, a third region and a fourth region. The fourth region is arranged between the first region and the second region. The first region is arranged between the third region and the fourth region. The optical module positioning method includes the following steps. Firstly, the optical module is driven to perform a scanning operation to acquire a scanned image while the optical module is not moved. Then, by judging the color values of two ends of the scanned image, the region where the optical module is stayed can be recognized according to the associated color values.