Oct 4, 2016

How 3D Laser Scanning is Changing the Surveying Sector

3D laser scanning is transforming the way surveying is done, so it’s worth getting to know this popular new technology.

Whether you need to survey a complex structure, perform a non-contact inspection, manage a stockpile, or collect precise data on a construction site, 3D laser scanning could save you time and effort compared to traditional surveying techniques.

What is 3D Laser Scanning?

3D laser scanning is is a non-contact, non-destructive technology that uses a line of laser light to digitally capture the shape of physical objects.

As the laser passes over an object, it creates a data point every few millimeters. These data points are collected into a “point cloud” and used to create a 3D model of the object (this could be a CAD model or a different kind of image depending your needs).

Because data is sampled every few millimeters, the resulting image is extremely precise and accurate. Here’s an example of a visual representation of a point cloud dataset:

This image of a walkway was created using 3D laser scanning.

Advantages of 3D Laser Scanning

There are 3 key benefits to using 3D laser scanning instead of traditional surveying methods.

Time:

Laser scanning takes a lot less time than more labour-intensive manual scanning. Depending on the project, laser scanning can also take less time than conventional surveying. With greater accuracy and more information, it may be a better option for some clients.

A 3D laser scanner can gather around 750,000 data points per second.

Since it’s so easy to collect data, surveyors can store extra information about the surrounding area and avoid having to make return site visits.

Impact:

Laser scanning is non-contact, meaning it’s possible to survey dangerous or unstable areas from a safe distance. The Faro system used by LN can provide full scanning services from 330m away.

Laser systems can also be used for precise surveys of congested or traffic heavy areas for pre-engineering analysis.

Detail:

Laser scanners pick up an incredible amount of data. Coupled with the right software, it is possible to create extremely precise and accurate visual representations of buildings, objects, or sites in order to guide development decisions.

Once you add UAVs (unmanned aerial vehicles or drones) into the picture, the sky really is the limit.

By combining 3D laser scanning with aerial surveys, it is possible to create precise, easily-accessible models of sites that could never have been captured by traditional surveying methods.

3D Laser Scanning and BIM

Building Information Modeling (BIM) is the digital representation of the physical and functional characteristics of a building or facility. BMI files can be read on computers and are used during the planning, design, construction, operation and maintenance of buildings and infrastructure.

The data from 3D laser scanning can easily be used for BIM, even in complex or historic sites with a lot of detail or small parts. Using traditional methods, it was often difficult and time-consuming to accurately survey the intricate features of old buildings. Laser scanning eliminates that problem.

Ready to Get Started?

3D laser scanning is just one example of the state-of-the-art equipment and sophisticated technology used by LN.

If you’re looking for a fast, accurate way to survey complex sites, we’d be happy to advise you on the best options for your budget and timeline. Get in touch by email, or call us on 780.488.9064 to find out more.