LiDAR-Gated Rust Removal Laser for Confined-Space Safety
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Solution Overview
Problem
Existing rust removal laser devices lack a safety function to prevent high-power laser beams from inadvertently hitting objects or persons other than the intended rust removal target, posing a risk during confined-space operations.
Innovation Solution
A rust removing laser device equipped with a LiDAR unit for distance measurement and a control unit that ensures the first laser beam is only output when an object is within a predetermined distance range and intensity threshold is met, coinciding with the principal ray of the second laser beam for precise targeting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a high-power laser device is used for rust removal in confined spaces, then the efficiency of rust removal work is improved, but the risk of the laser beam hitting persons or objects other than the rust removal object increases
Solution Approach 1:
The LiDAR unit performs distance measurement before the laser beam is emitted for rust removal. The control unit receives the distance information and determines whether to allow laser emission based on this preliminary measurement, ensuring safety checks are completed before the harmful action occurs
Solution Approach 2:
The system continuously monitors the distance to objects in the laser path using LiDAR and provides feedback to the control unit. The control unit adjusts laser emission status based on this real-time feedback, creating a closed-loop safety control system that responds to changing conditions
2Object-affected harmful factors
If a curing curtain is installed to prevent unnecessary laser irradiation, then safety is improved, but the complexity and cost of the system increases
Solution Approach 1:
The patent replaces the mechanical curing curtain system with an intelligent control system based on LiDAR distance measurement and control unit logic. This substitution eliminates the need for physical barriers while achieving the same safety objective through electronic control and information processing
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
This approach reduces the likelihood of irradiating unintended objects or persons with the laser beam, enhancing safety and eliminating the need for additional protective measures, thus simplifying rust removal operations.
Implementation Method 1
a LiDAR unit configured to output a second laser beam for distance measurement and calculate a distance to the object on the basis of return beam from an object
Implementation Method 2
a laser unit configured to output a first laser beam for rust removal
Implementation Method 3
a laser unit configured to output a first laser beam for rust removal
Data Source
AI summary
A rust removing laser device includes a laser that outputs a first laser beam for rust removal, a LiDAR device that outputs a second laser beam for distance measurement and calculates a distance to an object on the basis of return beam, a laser emission head that irradiates an object with the first and second laser beams and returns reflection beam of the second laser beam from the object to the LiDAR device, and a controller that outputs the first laser beam from the laser when a distance to the object is included in a predetermined distance range, and stops the output of the first laser beam when the distance to the object is not included in the distance range.