I built an ROV to solve missing person cases

Post by fusslo » Tue, Jun 11, 2024, 3:21 PM UTC

tetha wrote: post #102

fusslo wrote: post #5

I love these long-form build logs. I just started reading, and I am making the faux-pas of commenting before finishing. But, I'm wondering what the challenges are of automating the ROV to map a body of water's floor in a pattern. like a grid pattern, or whatever is most efficient. At first I was thinking currents would cause displacement. but can't we sense the current moving us in undesirable ways and correct with t…

Lübecks university has several projects[1] using swarms of robots for automatic cartography, water measurements and such. Autonomous accurate navigation under water is quite complicated, because after a certain point you need to start relying on local sensors because nothing reaches you anymore. But local sensors tend to be weird, because a straight line underwater is not necessarily a straight line - you are most li…

Post by conscion » Tue, Jun 11, 2024, 3:56 PM UTC

jonah wrote: post #12

The quest he mentions as inspiration - Tom Mahood's "The Hunt for the Death Valley Germans" - is a fascinating read and worth your time. https://www.otherhand.org/home-page/search-and-rescue/the-hu... I first read it seven years ago and similar to the author, it inspired me to join my local Search & Rescue team which has been incredibly rewarding. I highly recommend doing that to anyone who wants to combine a love of…

Post by octernion » Tue, Jun 11, 2024, 4:08 PM UTC

sleepybrett wrote: post #66

octernion wrote: post #15

having built autonomous ROVs in college, i'm absolutely astonished at what this person accomplished essentially on their own. they are so finicky and piloting them is a whole skill set on its own. and, what perseverance; it really did read like a detective story and what a good job distilling the cases down to their basics. what a cool read and an absolute triumph of an accomplishment.

There is quite a bit of open source info out there on how to build these things these days. I think the quadcopter/'drone' boom kinda opened up the market for rc hobbies in general. I've seen guys with UHF fpv setups on planes fly for miles and miles and maintain signal. With purpose built antennas they can go even further. The legality is .. suspect at best, but shrug .

Post by mindslight » Tue, Jun 11, 2024, 4:48 PM UTC

Attrecomet wrote: post #101

mindslight wrote: post #81

Earlier quoted context omitted.

Jargon generally takes on its own meaning and context beyond a naive reading. "ROV" customarily refers to an underwater remotely operated vehicle, not merely any "remotely operated vehicle" (contrast with flying "drones" or contemporary cars with cell modems). I'm nowhere near an expert or even frequent user of the term, that's just from my casual recollection and a quick search seems to back it up. The proper compar…

>The proper comparison isn't the author's time versus the readers looking it up, but rather readers encountering a term for the first time having to look it up versus every other reader having to read overly verbose writing that reiterates basic definitions rather than getting to the novel points. If you're as interested in ROVs as you imply, well now you know for all of the other times you will read the term. If you…

Post by dang » Tue, Jun 11, 2024, 4:56 PM UTC

jonah wrote: post #12

The quest he mentions as inspiration - Tom Mahood's "The Hunt for the Death Valley Germans" - is a fascinating read and worth your time. https://www.otherhand.org/home-page/search-and-rescue/the-hu... I first read it seven years ago and similar to the author, it inspired me to join my local Search & Rescue team which has been incredibly rewarding. I highly recommend doing that to anyone who wants to combine a love of…