INTRODUCTION
In various sectors of planning & development like Mining, construction, infrastructure, power etc, Geospatial technology has emerged as the most efficient IT tool of data capture and management. Amongst Data capture techniques, 3D scanners have emerged as most efficient technology. This combines technologies like –satellite Remote Sensing, Photogrammetry, maps, GPS and similar systems, Total station, leveling, LiDAR etc. The equipment is fitted with scanner (like LiDAR), photogrammetric cameras, GPS and related software to generate 3-dimensional digital maps for a variety of applications. This latest system is fast, efficient and cost effective. 3 D data capture techniques are growing. Laser scanners are the latest. In a short time, a laser scanner captures huge data in 360 degrees range and generates 3D maps and other outputs. The course also covers the process of integrating desperate (heterogeneous) spatial data for generating GIS outputs
Principle: Use of ground based device that uses a laser to measure the 3D coordinates of a given region of an object’s surface automatically, in a systematic order at a high rate in (near) real time
• Survey Range up to 1400 m
• Non Contact Data Acquisition
• High Speed Data Acquisition
• High Accuracy
• Measurement Rate up to 1,22000 measurements/sec
• Field of View up to 100° x 360°
• High Resolution Color Images
• Takes images from platform about 60 ft high
• Point cloud and Photorealistic 3D Visualization
Application Areas (illustrative list only)
Calculating volumes of heaps
Surveying open cast mines
Roads survey with LS & CS
Buildings and urban areas
Bridges and monuments
Modeling (2D, 3D), Volumes, surface cal and generates Contours
Cross sections of underground mines
Coloured outputs
Automatic extraction of step edges, such as kerbs & gutters