Laser Surveying System Intersection Line Alignment
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Solution Overview
Problem
Existing surveying systems for construction, such as total stations and laser scanners, are complex and expensive, and struggle with accurately projecting datum points on uneven ground and ceilings, making it difficult for operators to mark construction data in real time.
Innovation Solution
A laser surveying system with a horizontal and vertical laser emitter, a leveling laser rangefinder, and multiple laser receivers, where the intersection line of the beams indicates the aim direction, allowing for easy alignment on uneven surfaces, and a laser plummet with a rotating table and projection lens to project beams onto surfaces, along with a data communication module for real-time data recording.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If total stations or laser scanners are used for 3D point setting-out, then measurement precision is improved, but device complexity and cost increase
Solution Approach 1:
The system divides the surveying function into separate components: a total station for measurement and a dedicated laser emitter for projection. This segmentation allows each component to be optimized independently, reducing overall system complexity while maintaining precision.
Solution Approach 2:
A laser emitter is introduced as an intermediary device between the total station and the construction site. The laser emitter receives coordinate data from the total station and projects it visually onto the ground or ceiling, simplifying the operation for construction workers without requiring them to interpret complex surveying data.
2Measurement precision
If datum points are projected on uneven ground and ceilings, then measurement precision is improved, but ease of operation deteriorates
Solution Approach 1:
The laser emitter uses different colored laser beams to indicate different spatial relationships. For example, red beams may indicate points that need adjustment, while green beams indicate correct positions. This visual coding system helps operators quickly identify and mark correct coordinates on uneven surfaces without confusion.
Solution Approach 2:
The system projects laser beams in multiple dimensions (horizontal and vertical sectors) simultaneously. This allows the same datum point to be projected onto both the ground and ceiling surfaces, providing operators with multiple reference points to work from on uneven terrain.
3Ease of operation
If laser beams are projected onto surfaces to indicate aim direction, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The laser emitter is designed to perform multiple functions: projecting horizontal laser beams for floor marking, vertical laser beams for ceiling marking, and providing aim direction indication. This multi-functionality consolidates what would otherwise require separate devices into a single unit, reducing overall system 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
Enables accurate and efficient marking of coordinates on uneven surfaces, ensuring construction data aligns with site conditions, simplifying the process and reducing operational complexity.
Implementation Method 1
a horizontal laser emitter for emitting horizontal laser beams in a sector; a vertical laser emitter for emitting vertical laser beams in a sector
Implementation Method 2
a leveling laser rangefinder; the distance between the laser emitter and the laser receiver is measured by the laser rangefinder
Implementation Method 3
the beams are projected onto a surface to be surveyed by the laser plummet of the laser receiver
Data Source
AI summary
The present disclosure relates to the field of architecture and civil engineering, in particular to a construction surveying system. A laser surveying system for setting out comprises a horizontal laser emitter for emitting horizontal laser beams in a sector; a vertical laser emitter for emitting vertical laser beams in a sector; a leveling laser rangefinder; and at least one laser receiver; The horizontal and vertical laser beams in a sector intersect at an intersection line, an optical axis of ranging beams of the leveling laser rangefinder coincides with the intersection line, the laser receiver includes a laser entrance window and a laser plummet, and an axis of the laser entrance window coincides with the intersection line. According to the present disclosure, the aim direction of the laser emitter can be indicated for operators by the intersection line of the laser beams in a sector. The distance between the laser emitter and the laser receiver is measured by the laser rangefinder whose axis coincides with the intersection line, and the beams are projected onto a surface to be surveyed by the laser plummet of the laser receiver so that the aim direction can be indicated for operators easily regardless of sloping or uneven ground, and the operator can mark coordinates along on the laser beams.