What is Laser Scanning? скачать в хорошем качестве

What is Laser Scanning?

Adam Westfall explains how using laser scanning technology can reduce project liability and save time and money. www.dewberry.com Adam Westfall: Laser scanning works quite similar to traditional survey instruments in that it is measuring a horizontal and vertical angle combined with a slope distance, but what it is doing is revolving a laser very rapidly through a vertical and horizontal arc while using those laser pulses to measure the distance. That results in millions of points per second being stored in the onboard computer. One of the major benefits of using a laser scanner is it greatly reduces project liability. The way it does that is there are lesser unknowns about the project because whether or not something is represented in the CAD deliverable or the survey data, the engineer or their technician can actually take the point cloud, look at the entire site, and identify other areas of interest. It is a much more holistic approach to analyzing the data in an environment. If we have girders or bolt patterns or curb and gutter all of these different things are represented in one laser scan, which we are usually used to going out and surveying the site for a civil engineer and then later for a structural engineer, whereas we have one dataset with both deliverables waiting to be extracted from it. Whenever you can take data and you don't turn it into 2-D and then back into 3-D and then back into 2-D to actually build it, what laser scanning allows you to do is take a 3-D environment, represent it in 3-D, and design in 3-D. That eliminates all those conversion steps and saves project time and money.