BIM model formats and interoperability challenges
Discover what are the specificities of the different BIM model formats as well as the interoperability challenges that arise from their use.
Discover how a survey protocol allows you to benefit from “tailor-made” capture by taking advantage of the advantages of each of the selected solutions.
Deploying a hybrid 3D scanning protocol, or “multi-technology”, means jointly using various acquisition solutions (e.g. static, dynamic scanners, drones, etc.) to conduct the 3D survey of a building.
Opting for such an approach will make it possible to define a “tailor-made” capture protocol for your 3D survey project, and to take advantage of the advantages of each of the selected solutions.
Indeed, deploying this type of protocol offers several essential advantages, in particular for:
In this article, we invite you to discover these various advantages in detail.
3 main capture solutions that can be deployed to digitize a building: dynamic, static scanners, and drones. In a few words, here are their specificities:
Note that, in conjunction with these solutions, it is common to deploy a total station, making it possible to identify targets or control points to make point cloud processing and assembly more reliable.
The solutions mentioned above will be perfect Complementary during the 3D survey of the building. Very generally, it is observed that:
As explained above, mobile scanners offer a very high reading rate, 3 to 4 times faster than a static scanner. By integrating them into a survey protocol, as far as possible according to the project specifications, the acquisition phase is particularly accelerated.
Conducting a 3D acquisition quickly will allow limit the disturbance what it can cause, what can be crucial in sensitive environments or with high activity (hospitals, industrial sites, sites under construction).
As explained above, mobile scanners cannot be used in all configurations, which is why it is attractive to have other solutions available, such as a static scanner or a drone, to complete the acquisition.
In conclusion, by taking advantage of these 3 solutions, it will be possible to conduct an exhaustive and accurate survey of the building, while optimizing the time spent on site.
As explained above, the use of mobile scanners makes it possible to drastically reduce the time required for acquisitionn of data compared to the exclusive use of static scanners. This can lead to significant cost savings, especially for large or complex buildings.
This time saving should be put into perspective with the fact that it is sometimes necessary to allocate 2 operators for the use of a mobile scanner (the first one prepares the scanning area, opens the doors and warns the occupants, while the second one is in charge of the 3D acquisition). However, it is clear that the use of dynamic scanners reduces costs of acquisition when we take a 3D survey operation as a whole.
Common examples of multi-technology surveys include:
Note that static scanners are regularly used to establish a “skeleton” of the building by noting the facades, surroundings and stairwells, to which the point clouds recorded with the dynamic scanner will be attached.
Overall, combining several capture solutions during a building survey will make it possible to take advantage of the strengths of each solution, and dEstablishing a customized survey protocol.
Multi-technology surveys allow for faster data acquisition, optimal accuracy, and greater flexibility. Well controlled, they guarantee results in one complete and reliable data set for your projects.
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