Recognition Device Imaging Position Optimization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing recognition devices for component positioning on a board face challenges in imaging and recognizing protruding sections when the light source's emitting range is narrow, leading to incomplete imaging and recognition failures.
Innovation Solution
A recognition device that systematically moves a component between predetermined positions to determine optimal imaging points within the light source's range, identifying a central position for reliable imaging and recognition of protruding sections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the emitting range of the light source is narrowed to improve illumination precision, then imaging precision of protruding sections is improved, but the ability to image all components reliably deteriorates
Solution Approach 1:
The system performs preliminary imaging at multiple positions (first position, second position, and intermediate positions) before final recognition. By pre-testing at these locations, the system determines which position allows reliable imaging of the protruding section, ensuring that the final imaging occurs at an optimal position where the component is fully within the light source's emitting range.
2Area of stationary object
If the light source emitting range is increased to improve coverage, then imaging coverage is improved, but imaging precision and recognition accuracy deteriorate
Solution Approach 1:
The system dynamically adjusts the imaging position based on the component's actual location. Instead of using a fixed imaging position, the system moves the imaging position to an intermediate position between the first and second positions when the component is detected to be offset. This dynamic adjustment ensures that the component remains centrally positioned within the light source's emitting range during imaging, optimizing both coverage and precision.
3Ease of operation
If imaging is performed at a fixed position to simplify the process, then operational simplicity is improved, but the ability to handle component position variations deteriorates
Solution Approach 1:
The system incorporates feedback through determination steps that evaluate whether the component can be reliably imaged at the current position. After imaging at the first position, the system determines whether the protruding section is properly captured. If not, the system uses this feedback to adjust the imaging position to an intermediate position between the first and second positions, ensuring successful imaging while maintaining a relatively simple automated process.
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
Ensures accurate recognition of protruding sections by adjusting the imaging position to keep the component within the light source's emitting range, even with variance in component dimensions, thereby enhancing imaging and recognition precision.
Implementation Method 1
light is emitted from a light source onto the protruding section of the component, and the protrusion of the component is imaged based on light reflected by the protruding section
Data Source
Figure 1
Figure 2
Figure 3
AI summary
With a recognition device of the present invention, when a target component that is an imaging target is moved in a direction from one to another of an upper limit imaging position and a lower limit imaging position, a protruding section of the target component is imaged at each of a predetermined pitch (0.1 mm). Then, it is determined whether it is possible to recognize the position of the protruding section of the target component based on image data of each pitch (O: recognition possible, X: recognition not possible). Here, from among imaging positions (H4 to H10) according to image data for which it was determined to be possible to recognize the position of the protruding section of the target component, a position (H7) that is at a central point between a position closest to the upper limit imaging position (H4) and a position closest to the lower limit imaging position (H10) is decided as a recommended imaging position. By this, it is possible to image the protruding section close to a central point inside the emitting range of the light emitted from the light source, meaning that the protruding section is appropriately imaged and the position of the protruding section can be appropriately recognized.