Lidar Survey

LiDAR (Light Detection And Ranging / Laser Imaging Detection And Ranging) survey is one of the modern surveying technique in practice. This is a method for measuring distances using laser sensors which emits and accepts laser signals, compute the distance with time duration of reversal of signal. The differences in laser return times and wavelengths are used for 3D modeling of the target. It is also called 3D Laser Scanning LiDAR is used to make high resolution maps with applications in surveying, geodesy, geomatics, archeology, geography and may more. It has terrestrial, airborne, and mobile applications

Terrestrial/ Static LiDAR

The stationary terrestrial LiDAR scanning is used to survey relatively small scale area such as monuments, places of cultural heritage and buildings. The 3D point cloud acquired from these type of scanners can be matched with digital images of area from scanning locations to create realistic looking 3D models. Each point in the point cloud is given the colour of the pixel from the image taken from same position and angle.

UAV / Drone Based LiDAR

In this technology, the Unmanned Aerial Vehicle (UAV)/ Drone is equipped with LiDAR and GPS system which can be used for aerial surveying operations with exact position location along with Inertial measurement unit (IMU) to compute the movement of Drone. The computer software pre / post processes the data for Geo-referencing, point cloud, convert data and extract ground for utilization in design.

Mobile LiDAR

In this technology the LiDAR system is mounted on a vehicle to capture data on large scale along the path. The system is paired with GPS/GNSS receivers and Inertial Measurement Unit (IMU). For proper geo-referencing, the data is checked with ground control points at regular interval. A 3D point cloud model can be created for utilization in design and other requirements

Mobile LiDAR technology presents multiple benefits to transportation agencies, including safety, efficiency, accuracy, technical, and cost. It can simultaneously acquire imagery and scan data.

Mobile LiDAR Systems can provide survey/engineering quality data faster than static scanning. Mobile LiDAR systems have been utilized along navigable corridors for a variety of applications including design, earthwork quantities, slope stability, infrastructure analysis and inventory, pavement analysis, urban modeling, and railways.

We provide Drone / Static / Mobile LiDAR services as per client requirement

Applications

The application of LiDAR is in various fields including
• Highways and Roads – Design, Construction, Maintenance and Asset management
• Railways – Design, Construction, Maintenance and Asset management
• Public Health Engineering – Water Supply / Sewerage design and construction
• Industrial and Infrastructure Projects
• Irrigation Projects
• Smart Cities – Design, planning and construction
• Other civil Engineering projects