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Mine Exploration Forum

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Author Drones
squirrel

Joined: 22/05/2007

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Drones
Posted: 03/03/2015 18:54:51
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OK here is a really silly question - has anyone heard of or used drones in mine exploration - perhaps through collapses or in areas of bad air, down shafts - or even to photograph surface remains?!

I just wondered, because the technology is getting ever cheaper and a simple drone with camera can be found on Amazon for around £38 Stupid
IP: 31.50.249.120 Edited: 03/03/2015 18:55:14 by squirrel
Blober

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Joined: 16/12/2012
Location: Anglesey

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Drones
Posted: 03/03/2015 18:59:44
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Have always thought about using them to look through those stranded tunnels high in slate chambers. Not sure how well the radio transmitters would work underground though.

--

FILTH
IP: 95.172.232.42
royfellows

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Joined: 13/06/2007
Location: Great Wyrley near Walsall

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Drones
Posted: 03/03/2015 19:15:46
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What we really need is a mechanical bore worm with a camera before we start digging the collapse that should only be a few feet but is actually indefinite.
Grrrr

--

He told me 'I seem to eat batteries”. No wonder he has a bad stomach.
IP: 88.107.41.38 Edited: 03/03/2015 19:16:15 by royfellows
RJV

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Joined: 16/03/2008
Location: Cleveland

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Drones
Posted: 03/03/2015 19:16:34
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Not underground, but we have used one to search for open jet mines. Though fun to watch, as a tool it proved to rest firmly in the fat lot of use category. Walking the ground, as with most things, is a far better option than watching something on a screen...

The only time we found anything with it was when we weren't even using it for that purpose! Bored

As for underground, one of the main problems I can see is judging scale. We've used cameras on drain rods to probe sumps and it's extremely hard to guess how big the space you are looking at might be. Though that is in caves, in mines which are often have fairly consistently sized passages then that might not be such an issue. The thought of exploring remotely does fill me with a certain amount of misgiving though. Putting the armchair into exploring and all that... Roll Eyes

IP: 82.19.131.200 Edited: 03/03/2015 19:17:53 by RJV
mistericeman

Joined: 04/10/2009
Location: Ashton-under-Lyne (Manchester)

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Drones
Posted: 03/03/2015 19:42:07
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I cannot imagine the transmitter working very well underground ....
Mine is fine line of sight wise for around 1000 feet with fresh transmitter batteries ...
It's possible to fly them FPV (Goggles act as screens relaying the camera picture )

I have thought about getting some overhead footage as surface remains are often more evident from the air especially early in the morning or late evening as the sun sets .

I only bought mine last year before we took the Landrovers up to Scotland SO not really had much chance to practice sadly .

IF you stick these on at HD the quality isnt too bad to be fair ...(The flying is appalling though lol )

https://www.youtube.com/watch?v=r7TWicWA19E
IP: 82.31.98.113
Mr Mike

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Joined: 09/06/2007
Location: Bury - In The Laboratory

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Drones
Posted: 03/03/2015 20:03:28
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CREG Journal did an article for using them to see up high in large cave chambers, can't remember what the conclusions were.

Just checked, it was issue 82, see:

http://bcra.org.uk/pub/cregj/covers.html

http://bcra.org.uk/pub/cregj/index.html?j=82

Unless you have a subscription, you can't download the info, though check if you can pay for just a one off.

--

Mr Mike www.mineexplorer.org.uk
IP: 88.104.0.122
P Knight

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Joined: 08/06/2013
Location: South west wales.

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Drones
Posted: 03/03/2015 20:35:53
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Ive been working on a rolling platform for caves and castles and it would not take too much imagination to use it in a mine. http://hackaday.io/project/1198-subterranean-investigation-device
I have thought about building a blimp with a camera and stuff to get footage in caves, nice drifting shots. But, i would have to inflate it with hydrogen once in the required cave section and people might not approve of me crawling down a small passage with bottles of hydrogen in my bag. Klunk, leak, boom!
IP: 86.170.157.152
mistericeman

Joined: 04/10/2009
Location: Ashton-under-Lyne (Manchester)

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Drones
Posted: 03/03/2015 20:38:20
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P Knight wrote:

Ive been working on a rolling platform for caves and castles and it would not take too much imagination to use it in a mine. http://hackaday.io/project/1198-subterranean-investigation-device
I have thought about building a blimp with a camera and stuff to get footage in caves, nice drifting shots. But, i would have to inflate it with hydrogen once in the required cave section and people might not approve of me crawling down a small passage with bottles of hydrogen in my bag. Klunk, leak, boom!


Helium instead ????

Least it'd be a laugh
IP: 82.31.98.113
Graigfawr

Joined: 04/11/2009

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Drones
Posted: 03/03/2015 21:07:16
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Currently a thread on drones underground over on ukcaving:http://ukcaving.com/board/index.php?topic=17853.0 IP: 92.14.157.182
NewStuff

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Joined: 26/07/2010
Location: NE Wales

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Drones
Posted: 04/03/2015 00:48:01
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I've flown one (a WL922) through parts of Cambrian. No footage, I didn't have a camera attached at the time. The huge issue is spatial awareness, or rather lack of it in the dark. Flying FPV may solve some of those, but most FPW camera's are very wide angle, and do not, by design, have the propellers in shot. It may also help if your quad/hex/octo has the payload capacity to strap a bright (several thousand lumen) light to it.

--

Searching for the ever elusive Underground Titty Bar.
IP: 86.160.43.215
AdM Michael

Joined: 04/08/2008
Location: Germany

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Drones
Posted: 04/03/2015 04:50:18
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This might solve some of the problems:

http://www.dlr.de/dlr/en/desktopdefault.aspx/tabid-10081/151_read-9527/year-all/#/gallery/13024

IP: 80.187.111.151
AR

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Joined: 07/11/2007
Location: Knot far from Knotlow in the middle of the Peak District

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Drones
Posted: 04/03/2015 10:02:30
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I've seen some footage shot from a drone flown over Magpie Mine and I have to say I thought it of limited use due to the constant rolling and pitching; I think Toadstone's kite work to date has been better from an archaeological perspective.

--

Oh God of Sarcasm, thanks for everything...
IP: 95.172.74.53
Peter Burgess

Joined: 01/07/2008
Location: Merstham. Or is it Godstone ...... ?

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Drones
Posted: 04/03/2015 12:17:53
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Down a shaft you might find a piece of string with a camera on the end is a cheaper option.

--

The most useful idiot you can ever hope to meet...
IP: 82.69.118.115
royfellows

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Joined: 13/06/2007
Location: Great Wyrley near Walsall

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Drones
Posted: 04/03/2015 13:35:24
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Peter Burgess wrote:

Down a shaft you might find a piece of string with a camera on the end is a cheaper option.


IA Recordings have been producing very good video footage for years without them.

--

He told me 'I seem to eat batteries”. No wonder he has a bad stomach.
IP: 92.19.55.89
Roy Morton

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Joined: 09/10/2007
Location: Redruth Cornwall

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Drones
Posted: 04/03/2015 23:43:54
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some snazzy flying here albeit above ground.

https://www.youtube.com/watch?v=UouWv9EhKFQ

--

'Bid me discourse, I will enchant thine ear'
IP: 109.148.150.164
4737carlin

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Joined: 16/05/2011
Location: New Brighton

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Drones
Posted: 05/03/2015 00:35:48
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Just make sure you have a fully charged battery

IP: 94.194.25.207
P Knight

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Joined: 08/06/2013
Location: South west wales.

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Drones
Posted: 05/03/2015 09:14:55
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HA! Give that man a medal! Smile IP: 37.19.26.236
Digit

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Joined: 29/07/2009
Location: North Wales

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Drones
Posted: 05/03/2015 11:47:02
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RJV wrote:

Not underground, but we have used one to search for open jet mines. Though fun to watch, as a tool it proved to rest firmly in the fat lot of use category. Walking the ground, as with most things, is a far better option than watching something on a screen...



So who is going to be the first to develop and fly some scaled down LIDAR kit? That could be both interesting and useful given the overgrown state of some sites.

--

~~~ The future is not what it used to be ~~~
IP: 92.3.2.46
RJV

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Joined: 16/03/2008
Location: Cleveland

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Drones
Posted: 05/03/2015 12:10:13
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We've used LiDAR too!

Personally I found it to be of marginal use though others may differ in their views. If you're sufficiently interested in an area to have obtained the relevant LiDAR data then realistically, you probably already know exactly where the various worked seams etc outcrop and where the various surface depressions and so on are. As the data is not detailed enough to enable you to determine between said depressions & actual holes it all comes back to having to walk the ground. Which is good!
IP: 82.19.131.200
christwigg

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Joined: 20/02/2008
Location: Cleveland / North Yorkshire

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Drones
Posted: 05/03/2015 13:15:51
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RJV wrote:

Personally I found it to be of marginal use though others may differ in their views.


I'll be the one that differs there.
I found it very useful for locating areas in woodland that were worth searching for entrances into jet workings.

Admittedly the same could be achieved by just walking the ground anyway, but it can point you at the biggest tips and most surface collapses very quickly.



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IP: 145.8.104.65
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