Traditionally, information would be gathered with manual measurements and reference to original design and construction drawings. This work is time consuming and prone to error. Terrestrial laser scanning can eliminate these problems.

Each laser scan takes between 5 and 15 minutes, data capture is therefore very fast and accurate to millimeters. Traditional surveying is based on discrete data point observation, terrestrial laser scanning captures the complete asset. Thus, there is a significant improvement in the level of detail and accuracy of the raw data plus a more extensive range of possibilities for data analysis and use. The need for return to site visits are also reduced.

Terrestrial laser scanning surveys enable engineers to decide on the best placement for new and existing equipment. Rapid data acquisition means less time on site and will reduce project design times. High quality panoramic images are also taken on site and can aid in the design process.

Deliverables/products:

• Point cloud can be loaded into PDMS, PDS, Smartplant & Autoplant.
• Slices (or sections) of the point cloud can be extracted and highly detailed 2D profiles, elevations and sections can be produced.
• 3D solid models.
• 'Intelligent' 3D models with attribute information.
• Use of 'fit to cloud' algorithms to fit geometry to the point cloud.
• GIS data integration.
• 360 degree high resolution panoramic imagery.
• In combination with Leica TruView, the scan data can be shared over the internet. You can see point clouds on screen just as if you were standing right where the laser scanner captured the scan data. Truview will allow users to share data throughout your design or asset management team - across multiple offices.
  
  
  Measurement of components such as storage tanks, terminals and other complex plant for analysis: Out-of-Roundness Survey, Verticality, Tank Floor Profile, Tank Side Edge Settlement Survey. 3D modelling of components that may need replacing ensures that components are fabricated to fit, reverse engineering.

Advantages of using laser scanning for complex plant, e.g. offshore platforms, oil and gas, chemical plants, power stations, refineries, storage tanks etc..

• Comparisons between existing infrastructure and proposed installations for clash detection is made considerably easier with the technology.
• Lower design costs.
• Reduce the project design time
• Fast and accurate data capture.
  Completeness of survey. Reduced need for site re-visits. Increased safety.
• In hazardous environments, laser scanner can be remotely operated.