Data acquisition of high precision by drone, robot and treatment Axxess Data France
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DRONE archaeology - New technological ally of archaeologists

icone drone archeologie
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              The drone is the indispensable technological tool for numerous archaeological excavations. There are very many reasons.

Documentation PDF Axxess Data Drone - archaeology

Documentation pdf Drone and archaeology

Drone and pollution 

In urban areas, add pollution to pollution is not very serious, whatever...
On the other hand, it is essential on sites natural, Virgin of any chemical and noise pollution to preserve integrity of the place.

Drone and flexibility of transport

By definition, a site archaeological little find anywhere. No question to take heavy or too bulky loads. The drone is a concentrate of technology and its weight varies from 2 to 4kg, depending on the missions and the flight scenarios. There are specific transport bags that allow to take him in the most inaccessible places.

Drone and access to remote and dangerous areas

The drone will allow to go to more than 100 m zone in less than 10 seconds. To access a difficult zone, a drone flight can choose the right places of passage and thus avoid a lot of fatigue. A doubt on some high and dangerous to access may be lifted soon by an acquisition of images by drone.

Drone and imaging - Drone and enhancement of archaeological site

The archaeological missions and archaeological sites are of interest to the greatest number. Making of film and images will focus the archaeologists themselves, but not only. The images can take place in a more comprehensive project as a film or images within a cultural or museum space, and can serve as a basis for the motivation of future financial partners or sponsors. Pictures by drone are often striking beauty, of course when the drone pilot is good and that the lessee of images is also (this maybe the driver itself)

Drone and fixed image

First of all, archaeologists will have the impression to discover their yard for the first time, both high image changes completely the vision. They discover a new beauty of the place.

High image: the drone will be able to acquire high images (in France, up to 150 m boundary DGAC) which will allow to have a global vision of the site. These tall images will also allow a better assessment of the site in its environment and vegetation differences in views from the top will be able to reveal areas that until then ignored or underestimated. 

Drone and film

It is possible to make a video film in full HD, 2.7 k or 4 k. The images are often breathtaking as the drone magnifies the beauty of the place. Using a compact drone, it will be also possible to make movies outside but also inside. These films can be used in all circumstances and can be disseminated at conferences.

Drone and measurement

The drone can complement traditional topographical methods. The drone in archaeology will allow by the Photogrammetry System to take measures on the hidden parts, the high and inaccessible parts. One can quite reach accuracy the cm with a drone of high-tech, high-performance sensors and a particular methodology.
Plans, maps can also be easily carried out by drone, faster.

Drone and 3D

The acquisition of very many images in a limited time will allow a reconstruction of the place in 3D. This technique is increasingly adopted as it allows power really easy integrate any type of volume, from the smallest to the largest construction. 

Drone and thermography

Some researchers of Treasury may use a drone to access high areas of a building and see temperature differences in a stone wall that seems normal. A temperature difference may indicate an area hollow. If behind the wall is on the same plane, a suspect area type cache can be revealed. Thermography in archaeology may well bring surprises in revealing hidden areas. 

Orthophoto (drone) of the Amphitheatre of the three Gauls - Lyon France

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L'écart type est de 3cm.
La précision vient des cibles au sol prises par GNSS Leica GS 08.
Nous sommes meilleur en précision uniquement sur le résultat photogrammétrique.

Certaines zones sont un peu floues car il y avait du vent en hauteur.
Le résultat est bon pour nous mais on peut être encore meilleur sur du pierre à pierre sans vent.

On peut ensuite générer un fichier .dwg exploitable par Autocad ou tout est mesurable.
On voit bien que ce type de méthode est très utile pour avoir un diagnostic précis d'une zone.

L'avantage est que l'on a, à l' instant T, les mesures d'une zone et que l'on peut revenir dans le temps voir
si des zones ont bougé.

A partir de là, il est possible de :
Faire un plan dessin 2D.
Générer un nuage de points.
Faire une maquette 3D avec un complément par scanner laser au sol.
Faire une maquette 3D texturée avec intégration dans le paysage.

On parle alors de 4D. Le modèle 3D évolue dans le temps et permet de voir de manière globale la zone, et de traiter
la zone en danger. On est alors dans du préventif, bien moins coûteux qu'en intervention d'urgence car les problèmes sont pris en amont.

Le modèle 3D peut servir aux services culturels comme animation ludique pour le public. Un élément important lorsque l'on sait que la France est le pays le plus visité au monde. Un modèle 3D sur internet peut réellement donner envie de venir voir les monuments et donc d'amener plus de touristes.

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View at 150 m by drone - Amphitheatre of the three Gauls - Lyon France

Détail modèle 3D - Amphithéâtre des Trois Gaulles -  Lyon - 1

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Détail modèle 3D - Amphithéâtre des Trois Gaulles -  Lyon - 2

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Détail modèle 3D - Amphithéâtre des Trois Gaulles -  Lyon - 3

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Acquisition et traitement de données de précision par drone et scanner laser 3d
Mesure par drone, contrôle par drone, robot, gps, scan 3d, station totale, station robotisée
Topographie - Photogrammétrie - 3D - Orthophotographie - Orthophotoplan
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