Application of Backpack Lidar scanner in the Field of Building Information Modeling

GVI Libackpack DGC50 is a backpack the is a lidar scanner with the function of collecting high-precision geographic coordinate information point cloud and panoramic image. 

With the help of GPS positioning information, combined with lidar and Simultaneous Localization And Mapping (SLAM) technology, the LiBackpack DGC50 backpack lidar scanner can obtain laser point clouds and panoramic image data with high-precision geographic coordinate information, even in In areas where GNSS is partially lacking, laser point cloud data with high-precision geographic information can also be obtained, so it is an ideal LiDAR building scan applications especially for indoor and underground mapping. 

In addition to the BIM field, the equipment has also been widely used in indoor and outdoor LiDAR building mapping, underground space information acquisition, tunnel engineering, digital factories, digital mines, and forestry resource censuses.

BIM, short for Building Information Modeling, was first proposed by Autodesk in 2002 and has been widely recognized by the industry worldwide.

It can help to realize the integration of building information, from the design, construction, operation of the building to the end of the whole life cycle of the building, and integrate all kinds of information into a 3D model information database.

The design team, the construction unit, the facility operation department, and the owner can work together based on BIM to effectively improve work efficiency, save resources, reduce costs, and ultimately achieve sustainable development.

The core of BIM is to establish a virtual three-dimensional model of construction engineering and use digital technology to provide a complete and actual construction engineering information database for this model. The information base not only contains the geometric information, professional attributes and state information describing building components, but also the state information of non-component objects (such as space and motion behavior).

With the help of this three-dimensional model containing construction engineering information, the information integration degree of construction engineering is greatly improved, thereby providing a platform for the exchange and sharing of engineering information for the stakeholders of the construction engineering project.


BIM has the characteristics of visualization, coordination, simulation, optimization and drawing, while 3D laser scanning technology has the characteristics of data authenticity and accuracy. By scanning the construction site with 3D lasers and cameras, we can obtain real and accurate data, establish a BIM system model, and obtain information on building dimensions and internal facilities layout, and provide information and visualization solutions for engineering quality inspection and renovation plan design. Therefore, it is of great importance. practical meaning.