Rotating Laser Recalibration via Azimuthal Beam Positioning
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Solution Overview
Problem
Existing rotating lasers require manual and often costly recalibration due to external influences like temperature and humidity fluctuations, which can be challenging for users with varying technical knowledge and skills, and typically require special accessories.
Innovation Solution
A construction laser system with a rotating laser and laser receiver that includes a leveling sensor, a mechanism for tilting the axis of rotation, and an evaluation and control unit for automatic recalibration, using a sequence of calibration measurements to check and update calibration data, allowing for partially or fully automated recalibration without specialized knowledge or accessories.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual recalibration methods are used, then users can recalibrate the rotary laser, but the process becomes complex and requires special accessories and technical knowledge
Solution Approach 1:
The rotary laser performs automatic self-calibration using its own laser beam and a laser receiver. The system automatically determines calibration values by measuring the laser beam's position at different rotation angles without requiring external calibration tools or complex manual procedures. The control unit processes the measurements and updates the calibration data autonomously.
Solution Approach 2:
A laser receiver serves as an intermediary tool that detects the laser beam's position and transmits this information to the control unit. This simple intermediary device enables automatic calibration without requiring complex specialized calibration equipment, bridging the gap between the laser beam and the control system.
2Measurement precision
If special calibration accessories are used, then calibration accuracy can be maintained, but cost and device complexity increase
Solution Approach 1:
The system uses a copy of the laser beam itself (detected by the laser receiver) as the calibration reference instead of requiring external calibration accessories. The laser beam's own characteristics are measured and used to determine calibration values, eliminating the need for separate calibration tools while maintaining accuracy.
Solution Approach 2:
The laser receiver serves multiple functions: it acts as both a normal operational device for detecting the laser beam during construction work and as a calibration measurement tool. This multi-functionality eliminates the need for separate specialized calibration accessories, reducing cost and complexity while maintaining calibration accuracy.
3Adaptability or versatility
If external calibration tools are required, then calibration can be performed, but user independence and ease of use decrease
Solution Approach 1:
The rotary laser system performs calibration autonomously using its own resources (laser beam) and a standard laser receiver. The control unit automatically processes measurements and updates calibration data without requiring user intervention or external tools, enabling any user to perform calibration independently regardless of technical expertise.
Solution Approach 2:
The laser receiver acts as a simple intermediary that any user can operate to initiate and complete the calibration process. This intermediary device simplifies the interaction between the user and the complex calibration system, allowing users without specialized knowledge to perform calibration independently.
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 reliable and simplified recalibration of the beam leveling functionality, ensuring accuracy and reducing the need for special tools, allowing for independent recalibration by users of varying skill levels and potentially fully automated processes.
Implementation Method 1
a laser unit and a continuously rotatable deflecting means for emitting a rotating laser beam such that the rotating laser beam defines a reference surface
Implementation Method 2
the core component of the rotary laser (the laser core module), which includes the laser unit and the rotatable deflecting prism, can be suspended by pendulums to achieve horizontal alignment using gravity
Implementation Method 3
the laser beam detector is usually designed such that the point of impact of the laser beam on the detector surface can also be derived
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The system has laser receiver (20) that generates output signal (24) depending on impingement position of laser beam (14) on laser beam detector (21). A communication unit transmits output signal from laser receiver to evaluation and control unit (16) providing calibrated beam self-leveling functionality. Calibration measurements are implemented by rotating laser (10) and laser receiver with respective azimuthal alignment. The evaluation and control unit automatically evaluates impingement positions of laser beam correlated with respective I-th azimuthal alignments. Independent claims are included for the following: (1) a method for recalibrating beam self-leveling functionality of rotating laser; and (2) a computer program product for recalibrating beam self-leveling functionality of rotating laser.