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Understanding Accuracy

Understanding accuracy might seem like something strange. In GNSS measurements, for example, there is always a small deviation. Therefore, we do not yet know how accurate the survey is, or whether we are talking about relative or absolute accuracy. When does each apply? In this post, we explain it briefly.

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The future of Topo4D & Land Surveying

“Automatic and smart measurement, that is the future,” according to Guillaume. He is curious about how drone surveying will evolve. Land surveying is becoming more widely accessible. You do not necessarily need a background in land surveying to be able to measure, as software and technology are becoming smarter. I am curious about the development of Artificial Intelligence, laser scanning, and satellite imagery from the air.”

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Bathymetry with drones: it is possible!

In addition to boats, we can also perform bathymetric surveys (measurements of the water bed) using drones. To do this, we suspend an echosounder beneath the drone, which then hangs just in the water to perform measurements. The drone then flies a specific pattern via software.

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Volume measurements of ballast

We regularly perform volume determinations of materials such as ballast. We carry this out on behalf of a railway contractor who needs to know the quantity of ballast stockpiled at a specific location and whether it is sufficient for a particular project.

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