LiDAR which stands for ‘Light Detection And Ranging’ is a remote sensing & surveying technology that measures distance by illuminating a target with a pulsed laser light. These light pulses combined with other data recorded by suitable Mapping systems generate precise, three-dimensional information about the shape of the Earth and its surface characteristics. LiDAR mapping, sometimes referred to as ‘3D laser scanning’ is popularly used as a technology to make high-resolution maps, with applications in geodesy/ geomatics, with terrestrial, airborne & mobile mapping methods.
Mobile LiDAR is an advanced mapping solution that incorporates the most advanced LiDAR sensors, cameras and position/navigation/DGPS/GNSS receivers to collect survey grade 3D point cloud data quickly and accurately.
Survey Grade Mobile LiDAR mapping is the process of collecting geospatial data from a mobile vehicle, typically fitted with a LiDAR remote sensing system. Such systems are composed of an integrated array of time synchronized navigation sensors (survey grade DGPS/GNSS) and imaging sensors mounted on a mobile platform. The primary output after pre-processing from such systems include; geo-referenced 3D point cloud data, digital maps, images and videos. The overall accuracy of the data which can be easily achieved is about +/- 2 cm.
“Prashant Advanced Survey LLP” is the first company in India to procure “Leica Pegasus One” 3D Mobile LiDAR Survey & mapping System in March 2015. It is also the 1st Land Surveying company in India to possess 2 numbers of ‘Leica Pegasus Two’ Mobile LiDAR Systems in the year 2017. “Prashant Advanced Survey LLP” has the capacity to capture LiDAR data of highways for about 200 Kilometers per day using two instruments, with accuracy of about +/- 2 cm. The Pegasus system captures dense 3D point cloud data with calibrated imagery and enables processing, visualization and mapping through user-friendly software platform “Leica Auto PP & Leica Map Factory Advanced”. It provides plug-and-play hardware including cameras and LiDAR sensors, enabled by a software solution to control data acquisition, calibration, post-processing, viewing, editing and storage modules.
Mobile mapping allows rapid collection of all visible assets from a moving vehicle driving at posted speeds. This cutting-edge Mobile LiDAR technology provides a rich, high-density dataset that measures about one million 3D points per second. This Leica Pegasus system gives a unique & complete Survey grade mobile mapping solution to our clients with high speed & accuracy. The system can be mounted on any four-wheeler vehicle & can capture high precise data upto +/- 2 cm for about 100 Km of Highways in one day, which would have taken at least a month using primitive Electronic Total Stations (ETS) method.