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High Definition Laser Scanning (HDLS)
No Longer Just Interesting Technology
How Does it Work?
The High-Definition Surveying system is a high-speed, high-accuracy laser radar scanner with a 360° x 270° field of view. The technology can scan any interior or exterior man-made or natural structure or area within its field of view and create a complete raw data set in the form of a 3D image made up of millions of points of data, called a "3D point cloud". Every two points of the 3D point cloud provide direct point to point measurements within AutoCAD to within 6 mm accuracy. Quick, complete surface geometry is safely and accurately captured with the High-Definition Surveying system.
With a 10-times boost in maximum instantaneous scan speed and the full freedom and accuracy of a total station, Leica Scan Station 2 lifts laser scanning to the next level. This speed and productivity boost builds on the already industry-leading versatility of the Scan Station™ class of laser scanner to make High-Definition Surveying™ (HDS™) profitable for even more as-built and topographic survey projects.
For many as-built and topographic surveys, laser scanners have already proven to significantly reduce field labor compared to traditional methods. Scan Station 2's jump-step increase in pulsed scan speed further slashes these costs - field labor is now as little as one-fifth of that of traditional methods for many projects.
Infrastructure
ScanStation2 extends the benefits of safe, cost-effective road surveys from urban and multi-lane roads & intersections to 2-lane roads & intersections.
Sites
Using ScanStation2 for topographic surveys of small sites and sites up to hundreds of acres cuts initial survey costs and reduces site re-visits.
Buildings
Small buildings and tall buildings can be cost-effectively surveyed, both inside and out. Digital photos can be overlaid for added realism.
A New Level of As-built & Topographic Surveying... And More
- Full 360°x270° field-of-view
- Survey-grade dual-axis (tilt) compensation for control, traverse, resection & stakeout
- Survey-grade accuracy for each measurement
- Excellent practical, useful range
Instrument Specifications
Leica Scan Station2 3500
- Very-high speed, pulsed laser- Excellent range, up to 10-times faster than other pulsed scanners, and capable of single point surveying
- X-function compatibility- Interoperable with Leica System 1200
- Integrated dual-axis level compensator- For survey-grade traversing and stakeout
- Integrated high-resolution camera- For fast scene selection and compelling, auto-rectified photo overlays
- Advanced scripting controls- Smart Scan™ firmware allows automated sequencing of scans and unattended operation
- HI marks, tribrach mount, carry handle, and Quick Scan button- Standard procedures and accessories make Scan Station 2 easy to learn and use
- External bubble level- Conveniently located on the back side of the rotating scan head
- Advanced timing electronics- Integrated with a patented microchip laser to deliver accurate, low-noise distance measurements
Cost Saving Benefits
HDS systems can provide significant cost savings in many ways:
- Lower cost as-built & topographic surveys
- Reduction or elimination of costly "return visits" to the site
- More accurate, complete as-builts for retrofit design projects translate into better retrofit designs. These translate, in turn, into (1) less construction rework due to interferences and fit-up problems and (2) the ability to factory-fabricate instead of field-fabricate.
- Reduced facility downtime due to (1) fast, unobtrusive scene capture and/or (2) minimal field fit-up, field fabrication, and field rework thanks to accurate as-builts
Added Value Benefits
In addition to direct cost savings, HDS systems offer important "added value" benefits:
- Faster results
- Shorter project cycle times
- Better quality results
- Less ambiguity - more complete
- Higher level-of-detail
- Safer data capture
- Unobtrusive data capture
- Point clouds can be conveniently used & reviewed by others for more efficient management of projects
Typical benefits from HDLS Survey Technology:
• Plant facilities and site surveys
• Capital Project As-Built data capture models
• Reverse engineering and rapid prototyping
• Aircraft, vehicle and large object modeling
• Virtual reality, simulation and training
• Mining, geophysical & terrain modeling
Three-dimension accuracy is typically within 1.5 mm for 2D and 3D Models. Scanned data can be incorporated into piping, mechanical, and control drawings, resulting in far fewer field fit-ups and more accurate connections. Piping and structural pieces can be fabricated in the shop before shipping to the project location accurately.
Literature
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