Integrated Laser Scanner and Total Station for Vertical Distance Measurement
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Solution Overview
Problem
Current surveying techniques using total stations and reflective prisms are complex and time-consuming for measuring distances from ground or ceiling surfaces.
Innovation Solution
A surveying device combining a laser scanner and total station for rapid laser scanning and distance calculation, using a positioning unit to extract points from a laser scanned point cloud to determine the distance between a target and a specific plane, such as a ground or ceiling surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional total station and reflective prism methods are used to measure vertical height, then measurement capability is achieved, but operation becomes complicated and time-consuming
Solution Approach 1:
The patent combines the total station and laser scanner into a single integrated device, merging two separate measurement systems into one unified instrument. This integration allows simultaneous acquisition of positioning data and point cloud data, eliminating the need for separate operations and significantly reducing measurement time while maintaining ease of operation.
Solution Approach 2:
The patent replaces the traditional mechanical method of physically measuring and converting member lengths into height calculations with an optical laser scanning system. The laser scanner captures point cloud data that directly provides vertical height information through coordinate calculation, substituting complex mechanical measurement procedures with optical detection and computational geometry.
2Measurement precision
If additional positioning methods are used to determine height, then measurement accuracy can be improved, but operation complexity increases
Solution Approach 1:
The integrated device performs multiple functions simultaneously: the total station provides precise angular and distance measurements for positioning, while the laser scanner captures comprehensive point cloud data. Both systems work together to determine target height through a unified calculation process, eliminating the need for separate additional positioning methods and reducing operational complexity while maintaining high measurement precision.
Solution Approach 2:
The system uses its own integrated components to self-determine height without requiring external辅助设备 or additional positioning methods. The total station and laser scanner work together within the same device to automatically calculate vertical height from the collected data, making the system self-sufficient and operationally simple despite achieving high measurement accuracy.
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
Facilitates easier and more efficient measurement of target distances by adjusting laser scanning density and calculating distances based on proximity points, enhancing operational simplicity and accuracy.
Implementation Method 1
a laser scanner performs laser scanning to a specific plane
Implementation Method 2
a positioning unit that positions a target by means of laser positioning
Data Source
AI summary
A technique is provided to more easily measure a distance of a target from a ground surface or a ceiling surface. A surveying device has a laser scanner part and a total station in a unitary manner. The surveying device includes a TS functional part, a laser scanner part, and a distance calculator. The TS functional part positions a reflective prism by using laser light. The laser scanner part performs laser scanning of a ground surface along a vertical plane containing the reflective prism and an optical axis for the laser positioning to obtain a laser scanned point cloud. The distance calculator calculates a distance between the ground surface and the reflective prism on the basis of one or multiple points, which are extracted from the laser scanned point cloud and in proximity to a straight line connecting the reflective prism and a specific plane.