Laser Leveling Device with Sensor Feedback for Alignment Precision
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Solution Overview
Problem
Existing laser leveling devices lack precision and efficiency in aligning laser markings on uneven surfaces and varying angles, particularly in applications requiring accurate leveling and alignment in construction and building works.
Innovation Solution
A laser leveling device equipped with a sensor apparatus for ascertaining actual alignment, a control apparatus for calculating desired alignment, and a positioning apparatus for aligning the laser emission apparatus, allowing for precise adjustment in multiple degrees of freedom, including roll, pitch, and yaw, using sensors like stereo cameras and distance sensors, and actuators like servo motors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional laser leveling devices are used without sensor feedback, then the device structure remains simple, but the alignment precision on uneven surfaces deteriorates
Solution Approach 1:
The patent implements a closed-loop feedback system where sensor apparatus detects the actual alignment of the laser emission apparatus, the control apparatus calculates the deviation from desired alignment, and the positioning apparatus adjusts the laser emission apparatus accordingly. This feedback mechanism continuously corrects alignment errors, achieving high precision on uneven surfaces while managing device complexity through systematic integration of sensors and controllers.
Solution Approach 2:
The patent replaces manual mechanical alignment operations with an automated sensor-based measurement and control system. Instead of relying on operator skill and manual adjustment, the system uses sensor apparatus to detect alignment status and automated positioning apparatus to correct deviations, significantly improving measurement precision while the automation manages the complexity burden.
2Productivity
If manual alignment adjustment is used, then the device structure remains simple, but the alignment efficiency on varying angles deteriorates
Solution Approach 1:
The patent implements a self-aligning system where the laser leveling device automatically detects its own alignment status through sensor apparatus and corrects deviations using positioning apparatus controlled by control apparatus. This self-service capability eliminates the need for continuous manual intervention, dramatically improving alignment efficiency on varying angles while the integrated control system manages the added complexity.
Solution Approach 2:
The real-time feedback loop enables the system to automatically respond to alignment deviations as they occur, continuously adjusting the laser emission apparatus to maintain optimal alignment. This automated feedback-driven adjustment significantly improves productivity by eliminating manual measurement and adjustment cycles, while the systematic integration of components manages the complexity increase.
3Measurement precision
If multi-degree-of-freedom positioning is implemented, then the alignment precision improves, but the device complexity increases
Solution Approach 1:
The patent divides the positioning function into multiple independent degrees of freedom, each controlled by separate positioning apparatus components. This segmentation allows precise control of each alignment parameter (horizontal, vertical, angular adjustments) independently, achieving high alignment precision while managing complexity through modular organization of the positioning mechanism and its associated sensors and controllers.
Solution Approach 2:
The patent implements dynamic positioning capability that allows the laser emission apparatus to adjust in multiple degrees of freedom in real-time based on sensor feedback. The positioning apparatus provides dynamic adaptation to various surface conditions and angles, achieving high alignment precision through active control while the systematic integration of dynamic components manages the inherent complexity of multi-axis positioning.
Data Source
AI summary
A laser leveling device includes at least one laser emitting device for emitting a laser marking, in particular a one-dimensional laser marking, in an emission direction onto a projection surface. The laser emitting device includes a first sensor device for ascertaining the actual alignment of the at least one laser emitting device with respect to the projection surface, a controller which is designed to calculate a target alignment of the at least one laser emitting device at least on the basis of the ascertained actual alignment of the at least one laser emitting device with respect to the projection surface, and a positioning device for aligning the at least one laser emitting device according to the target alignment. The disclosure additionally relates to a leveling method.