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ElevatorScanning

Is this job doable?7796

Regina, Saskatchewan Canada
Queen_City_3D private msg quote post Address this user
I think I brought this up a while ago as it had come up in conversation with a prospect as a what-if but didn't go very far back then but now they've resurfaced after several months and are requesting a quote.

The job would be to scan an elevator shaft that is approx 100' tall. To be clear, there would be no elevator in the scan, just the vertical shaft.

Obviously a camera would have to be suspended in space somehow and still allowed to rotate, and then alignment might have issues unless we perhaps use several April Tags as markers.

Certainly not an easy job, but I wanted to throw it out to this forum: do you think it's doable and if so, how would you make it happen?
Post 1 IP   flag post
DouglasMeyers private msg quote post Address this user
Could you use a platform at each floor ( is it a building?)
Is there anyway to suspend something across each level...?
Post 2 IP   flag post
Regina, Saskatchewan Canada
Queen_City_3D private msg quote post Address this user
Yeah I think it would have to be on a platform. Or perhaps riding on TOP of an elevator? (although I'm not sure yet if there will even be an elevator installed at the site... I'm going to find out.)
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JonJ private msg quote post Address this user
If there is an operational elevator, you can set your tripod on top of it and scan each level as the elevator moves upward to each floor. The key thing would be to have a tripod that was tall enough that the blind spot of the camera would cover the entire floor of the top of the elevator.
I have never actually done this, but I think it would work in theory.

Good luck!
JonJ
Post 4 IP   flag post
Regina, Saskatchewan Canada
Queen_City_3D private msg quote post Address this user
@JonJ Yeah... I think it would work like that. I'm thinking if the walls of the shaft are too similar all the way up I might need to use the Matterport "April Markers", but if the camera can "read" off those markers to know where to attach the next scan to the previous it could possibly work...
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immersivespaces private msg quote post Address this user
We attempted something similar with the inside of a 5 story belltower. Moving up was no issue, however, it struggled to connect the vertical level scans at all and the alignment was way off even with april tags. We ended up scrapping the idea after several hours of trying to get it to work.
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Atlanta, Georgia
DanSmigrod private msg quote post Address this user
@Queen_City_3D

Was any of this helpful?

unique application - can it be done?

Dan
Post 7 IP   flag post
CarlosFHdz private msg quote post Address this user
Depending on this project budget, it may be better suited for he Leica BLK system due to the range and issue with the similarity between each capture.
Post 8 IP   flag post
ron0987 private msg quote post Address this user
@immersivespaces, the issue you have putting the camera on top of the elevator gives the software that builds the model a surface for the floor that never changes that is why you might be able to move thru the model one way and not the other. Because of the similarities on or in the shaft it self I could see the software stack all scans on the same level. By using the april tags the software would force the stacking but again not allowing you to move fluidly.

@CarlosFHdz has the best resolution rent a Blk360 and combine it and Matterport.

You have one other option depending on the building structure, if there is a stairwell nearby I would use that and still use april tags in the shaft so the software would still identify each floor separately.


If the stairwell is not an option and or the end product is to do the shaft only I would use the BLK360 or a FARO scanner.
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