Intro to How Drones are Shaping the Future of Construction Sites
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The document discusses the transformative impact of drones on the construction industry, estimating that $11.2 billion of the projected $100 billion in global drone spending over the next five years will come from this sector. It highlights various technologies related to drones, including orthomosaic photogrammetry, digital elevation models, lidar, point clouds, and building information modeling (BIM), all of which enhance efficiency and accuracy in construction processes. The document also emphasizes the role of thermal imaging in identifying insulation issues, demonstrating the broad applications of drone technology in construction.
Intro to How Drones are Shaping the Future of Construction Sites
- 1. 1| HOW DRONESARE SHAPING THE FUTURE OF CONSTRUCTION SITES March 31, 2016
- 3. 3| FAA Section333 intended operations by industry Drones in construction: Current Source: Baird
- 4. 4| Drones in construction: Future? Goldman Sachs estimates that total global spending on drones in the commercial market will be $100 billion over the next five years. Of that $100 billion, about $11.2 billion will be generated by the construction industry. Source: Market Watch
- 5. 5| Lexicon Orthomosaic Photogrammetry Digital elevation model LiDAR Point cloud Building Information Modeling (BIM) Thermal imaging
- 6. 6| Orthomosaic Unlike an uncorrected aerial photograph, an orthophotograph can be used to measure true distances, because it is an accurate representation of the Earth’s surface, having been adjusted for topographic relief, lens distortion, and camera tilt. Orthomosaic - An orthophoto, orthophotograph or orthoimage is an aerial photograph geometrically corrected (“orthorectified”) such that the scale is uniform: the photo has the same lack of distortion as a map. Source: Tim Boucher
- 7. 7| Source: Tim Boucher Photogrammetry Photogrammetry is a technique which uses photography to extract measurements of the environment. This is achieved through the use of overlapping imagery; where the same feature can be seen from two perspectives it is possible to calculate m
- 8. 8| DEM Digital elevation model (DEM) is a digital model or 3D representation of a terrain's surface created from terrain elevation data. DSM: Digital Surface Model = (earth) surface including objects on it DTM: Digital Terrain Model = (earth) surface without any objects Source: Wikipedia
- 9. 9| Image: HeMav LiDAR LiDAR, which stands for Light Detection and Ranging, is a remote sensing method that uses light in the form of a pulsed laser to measure ranges (variable distances) to the Earth. These light pulses—combined with other data recorded by the airborne system— generate precise, three-dimensional information about the shape of objects and their surface characteristics.
- 10. 10| Image: Knowledge Center Point cloud A point cloud is a set of data points in some coordinate system. In a three-dimensional coordinate system, these points are usually defined by X, Y, and Z coordinates, and often are intended to represent the external surface of an object. Point clouds may be created by 3D scanners or photogrammetry software. These measure a large number of points on an object's surface, and often output a point cloud as a data file. The point cloud represents the set of points that the device has measured. Geometric dimensions and tolerances can also be extracted directly from the point cloud. In geographic information system, point clouds are one of the sources to make digital elevation model of the terrain. The point clouds are also employed in order to generate 3D model of construction environment.
- 11. 11| BIM Building information modeling (BIM) is a process involving the generation and management of digital representations of physical and functional characteristics of places. Files are created which can be exchanged or networked to support decision-making about a place. Current BIM software is used by individuals, businesses and government agencies who plan, design, construct, operate and maintain diverse physical infrastructures, such as water, wastewater, electricity, gas, refuse and communication utilities, roads, bridges and ports, houses, apartments, schools and shops, offices, factories, warehouses and prisons. Credit: Asia Green Buildings
- 12. 12| Source: RTF Drones Thermal imaging Infrared thermography (IRT), thermal imaging, and thermal video cameras detect radiation in the long- infrared range of the electromagnetic spectrum. Building construction technicians can see thermal signatures that indicate heat leaks in faulty thermal insulation and can use the results to improve the efficiency of the final product.
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