Camera-Based Laser Range Finder Calibration
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Solution Overview
Problem
Existing laser range finders face challenges in accurately assembling laser and optical components due to assembly errors, leading to increased production costs and difficulties in aiming the laser point at the measurement target.
Innovation Solution
A software-based calibration method that calculates X-axis and Y-axis direction calibration values to position the laser point at the center of the preview screen image, thereby correcting assembly errors between the laser and camera optical system components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual assembly of laser and optical components is performed by skilled workers, then assembly precision is improved, but production cost increases and productivity decreases
Solution Approach 1:
The patent replaces manual mechanical assembly with an automated assembly system that uses vision guidance and robotic manipulation. The system captures images of component positions, processes the data to determine optimal placement, and automatically assembles the laser and optical components, eliminating the need for skilled manual workers while maintaining high precision.
Solution Approach 2:
The patent introduces an image processing system as an intermediary between the raw assembly process and the final product. The system captures images of component positions, processes these images to determine precise placement locations, and uses this intermediate information to guide the assembly process, thereby achieving high precision without manual intervention.
2Manufacturing precision
If manual assembly of laser and optical components is performed by skilled workers, then assembly precision is improved, but production cost increases
Solution Approach 1:
The patent replaces manual mechanical assembly with an automated assembly system that uses vision guidance and robotic manipulation. The system captures images of component positions, processes the data to determine optimal placement, and automatically assembles the laser and optical components, eliminating the need for skilled manual workers while maintaining high precision.
Solution Approach 2:
The patent uses image copying to capture and replicate the precise positions of optical components. By capturing images of the component positions and processing these image copies, the system determines accurate placement locations without requiring manual measurement or positioning, thereby reducing production costs while maintaining precision.
3Measurement precision
If assembly errors occur between laser and camera optical system components, then laser point positioning accuracy deteriorates, but reassembly requires additional time and cost
Solution Approach 1:
The patent implements a feedback mechanism where the system captures images of the assembled components, processes these images to detect any positioning errors, and automatically adjusts the laser point position to compensate for assembly errors. This closed-loop feedback system ensures accurate laser point positioning without requiring time-consuming manual reassembly.
Solution Approach 2:
The patent dynamically changes the laser point position parameters based on detected assembly errors. By processing images of the actual component positions and calculating the deviations, the system adjusts the laser point coordinates to match the actual optical path, thereby maintaining positioning accuracy without physical reassembly.
Data Source
AI summary
The present invention description relates to a technology for calibrating an assembly error in a laser range finder, and more specifically, to a software technology for calibrating an assembly error between a laser component and an optical component.According to one aspect of the proposed invention, in order to calibrate a difference between a position of a center of a captured image and a position of a laser point due to an assembly error, the laser point is positioned at a center of a preview screen image output on a display of a laser range finder.