Surveying Laser Scanner Automation with Vertical Code Display
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Solution Overview
Problem
Current surveying methods using laser scanners are labor-intensive and time-consuming due to the need for manual sighting and target detection, with existing automatic detection modes experiencing increased detection failures and inaccuracies as speed increases.
Innovation Solution
A surveying method employing a laser scanner that rotates horizontally and emits scanning light along a vertical plane to detect and identify targets with an entire circumference reflection prism and code display, utilizing reflected light intensity for detection and adjusting scanning density for improved accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If automatic detection mode using searching light is used, then detection speed is improved, but detection failure and incorrect detection increase
Solution Approach 1:
The patent segments the target into two distinct parts: a high-reflectivity entire circumference reflection prism for fast detection and a code display for identification. The laser scanner first detects the reflection prism to quickly locate the target area, then identifies the specific target by reading the code display. This segmentation allows the system to achieve both high detection speed and high accuracy without trade-offs.
2Measurement precision
If manual sighting operation is performed, then detection accuracy is maintained, but labor and time consumption increase
Solution Approach 1:
The system implements self-service automation where the laser scanner automatically detects targets using the reflection prism and automatically identifies them by reading the code display. The entire process from detection to identification is performed autonomously without operator intervention, eliminating manual sighting operations while maintaining detection accuracy and significantly improving surveying efficiency.
3Ease of operation
If code display is arranged in vertical direction, then identification is enabled, but scanning complexity increases
Solution Approach 1:
The laser scanner performs multiple functions using the same vertical plane scanning mechanism: it detects the reflection prism, reads the vertically arranged code display, and collects point cloud data. By arranging the code display vertically, the system enables automatic identification without requiring additional scanning mechanisms or changing the fundamental scanning approach, thus achieving multi-functionality without proportionally increasing complexity.
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
Automates the detection and identification of targets, reducing operator intervention and improving detection speed while maintaining accuracy by using reflected light intensity and adjusting scanning density, thus enhancing the efficiency of surveying operations.
Implementation Method 1
detecting the code display on the basis of the laser scanning light that is reflected back
Data Source
AI summary
Detection of a target by a surveying device is automated to achieve simple work. A surveying method uses a surveying device for detecting and identifying a target device having an entire circumference reflection prism and a code display that is arranged in a vertical direction. The surveying device has a laser scanner configured to perform laser scanning along a vertical plane while horizontally rotating. The surveying method includes performing laser scanning by emitting laser scanning light along the vertical plane while making the surveying device horizontally rotate, and detecting the code display on the basis of the laser scanning light that is reflected back.