Rapid Mapping

Key features

The system works by taking a number of scans (along with digital images, if required) at a suitable spacing, and recording the GPS position and orientation at each. The automatic alignment software, GPSalign®, which forms part of this system, utilises the GPS information as a starting point to align the scans together, and then generates surfaces from the scan data to find matching, overlapping geometric features. The final product is a composite, geo-referenced point cloud, ready for post-processing. The system is designed to be simple to operate - it takes four clicks to record the GPS information, import the scan and start the best-fit alignment. This near-real time data alignment allows the operator to examine the quality of the data in the field, and rectify any missed areas. Once the scans are aligned the data can be used in the Riegl software RiScan Pro to calculate volumes and cross sections. Data can also be transferred to TerraScan format.

Key Advantages

• Vehicle mounted system
  • Speed
  • Less lifting and moving of equipment
  • Safer and more comfortable working environment
• Automatic alignment of laser scan data
  • Improved accuracy of volume model
• Modular system
  • Components of the system can be used independently for other tasks
  • Better return on investment
• High resolution photography (6 MPixel Nikon D70)
  • Good visual record of survey site
  • Data validation
  • Improved visualisation for non-technical stakeholders
  • Improved communication with non-technical staff
  • Feature extraction
  • Less time spent on feature extraction
• Single operator system

System Components

• Riegl LMS-Z420i 3D laser scanner
  • Maximum range 1,000m
  • Robust design for use in harsh environments (IP64 environmental protection rating)
  • Class 1 eye-safe laser
• Integrated Camera: Nikon D70/D200
• Roof bars with scanner shock mount
• SiteMonitor software (field licence) including ruggedised notebook PC
• Rapid Mapping System consisting dual PC, GPSalign® software, embedded PolyWorks and power distribution box
• RiSCAN PRO software
• SiteMonitor analysis software (4 user licence)
• 24V batteries
• Spare cables
• Training and implementation support

Rapid Mapping system using a 4x4

Scans aligned using GPSalign and PolyWorks

Textured 3D mesh alongside photograph