#geowebchat transcript, 21 August 2012


@mappingmashups Aug 19, 12:16pm Next #geowebchat: Balloons, kites, drones, and more… the present and future of DIY remote sensing. Join us Tues at noon PDT. Pls RT!

@mappingmashups Aug 20, 11:48pm The report from my #balloonmapping adventure last week with @bricker and @mweisman. Good to read before #geowebchat: bit.ly/PzOGE4

@samkinsley Aug 21, 7:53am One for next #geowebchat – Balloon mapping in Guimarães bit.ly/O4kDHc Hope it’s of interest @mappingmashups :-)

@mappingmashups Aug 21, 9:51am I also recommend this other post by @jamesbridle about #balloonmapping for our #geowebchat (in two hours): booktwo.org/notebook/mappi…

@AndrewShears Aug 21, 11:46am This is F*CKING AWESOME. RT @mappingmashups: Report from #balloonmapping adv last wk w @bricker @mweisman. #geowebchat: bit.ly/PzOGE4

@mappingmashups Aug 21, 12:00pm Welcome everyone to today’s #geowebchat! Today we’re talking about balloon mapping (or kite mapping, or drone mapping, whatever your fancy)

@mappingmashups Aug 21, 12:01pm As usual, I suggest you try something like Tweetchat tweetchat.com/room/geowebchat to follow along with #geowebchat more easily.

@mappingmashups Aug 21, 12:03pm If you missed it, I’m particularly psyched about balloon mapping after my expedition w/ @bricker last week mappingmashups.net/2012/08/20/bal… #geowebchat

@DrSvalbard Aug 21, 12:03pm @bricker, Where did you source the giant tank of helium? #geowebchat

@mappingmashups Aug 21, 12:04pm (I should mention, that @bricker is in the field in Whitehorse, Yukon Territory, and may not be joining us) #geowebchat

@mappingmashups Aug 21, 12:04pm @DrSvalbard @bricker To answer your question, you can rent tanks of helium from party supply stores. #geowebchat

@DrSvalbard Aug 21, 12:05pm @mappingmashups, like you rented it for the day? #geowebchat

@mappingmashups Aug 21, 12:06pm For example, here are the going prices in Vancouver: thepartybazaar.com/balloons/ So it costs around $99-$139 for enough helium. #geowebchat

@JessiBreen Aug 21, 12:06pm If you’re at a uni where the Chem Dept has an NMR, they might be willing to help you source helium. #geowebchat

@AndrewShears Aug 21, 12:07pm Was just going to say this… RT @JessiBreen If you’re at uni where Chem Dept…they might be willing to help you source helium. #geowebchat

@mappingmashups Aug 21, 12:07pm @DrSvalbard Yes, you rent it for a few days, I think. @bricker needed it anyway to fill balloons for a party. #geowebchat

@mappingmashups Aug 21, 12:08pm Helium is a scarce resource, so in the future I’d like to try kites. Anyone had experience with kites? #geowebchat

@JeremyCrampton Aug 21, 12:08pm We use Scott-Gross a local company. $40-155. However there is a worldwide shortage #geowebchat

@mappingmashups Aug 21, 12:08pm .@mhaklay was telling us that the US gov was stockpiling He during the cold war, then dumped it all on the market… [1/2] #geowebchat

@AndrewShears Aug 21, 12:08pm @mappingmashups I’ve done kites before, but it’s really hard to control and get stable pictures. #geowebchat

@JessiBreen Aug 21, 12:08pm I have a little experience with kites and @PublicLab has a ton. #geowebchat

@mappingmashups Aug 21, 12:09pm …so there was a short period of cheap He, but it’s getting expensive again. [2/2] #geowebchat

@mappingmashups Aug 21, 12:10pm In our test last week, we certainly had a lot of wind… the balloon felt kite-like at times. #geowebchat

@JessiBreen Aug 21, 12:10pm @mappingmashups Did your pictures come out clear? Or wobbly? #geowebchat

@mappingmashups Aug 21, 12:12pm @JessiBreen There were enough clear ones to work with. Of course many were wobbly. The rudder worked well so there was no spin. #geowebchat

@JeremyCrampton Aug 21, 12:12pm Pictures come out clear, but issue is pointing straight down. However, you can hack cameras to take pics every xseconds #geowebchat

@mappingmashups Aug 21, 12:13pm @JeremyCrampton Yes, and I did use the CHDK hack to get 10 sec intervals on my camera. #geowebchat

@JessiBreen Aug 21, 12:13pm @mappingmashups We did one in Asheville where it looked like the camera was on a carnival ride. The problem was too much wind. #geowebchat

@mappingmashups Aug 21, 12:13pm You can look at our stitched panorama (is that the right word?) here: mapknitter.org/maps/ne-false-… (it’s still in progress) #geowebchat

@AndrewShears Aug 21, 12:14pm The problem with kites is that wind is necessary to make it happen. Wind makes the camera move, fewer downward pointing pics #geowebchat

@JessiBreen Aug 21, 12:14pm @AndrewShears Have you tried using a picavet? #geowebchat

@AndrewShears Aug 21, 12:15pm @JessiBreen Nope! This was a very low-budget, buy-a-kite-at-Toys-R-Us kind of operation. #geowebchat

@JessiBreen Aug 21, 12:16pm @AndrewShears You can make them pretty cheap. publiclaboratory.org/wiki/picavet-r… #geowebchat

@mappingmashups Aug 21, 12:17pm @JessiBreen @AndrewShears Yeah, I was impressed by your CD-case picavet, @JessiBreen. Looks inexpensive, just time intensive? #geowebchat

@JessiBreen Aug 21, 12:18pm @AndrewShears The other trick is to put the camera on the kite line and not the kite itself. #geowebchat

@sablepaws Aug 21, 12:19pm What is the budget? Could you stretch to a ball camera and hang it off a kite? #geowebchat wired.co.uk/news/archive/2…

@JessiBreen Aug 21, 12:19pm @mappingmashups Time intensive and just a little too heavy to be useful. #geowebchat

@JessiBreen Aug 21, 12:19pm @mappingmashups This is what I have now: publiclaboratory.org/notes/jbreen/6… #geowebchat

@JessiBreen Aug 21, 12:20pm @sablepaws But what would you use to process the photos? Could you stitch them together? #geowebchat

@mappingmashups Aug 21, 12:20pm .@ikeahacks (ikeahackers.net) would be proud! RT @JessiBreen: @mappingmashups This is what I have now: publiclaboratory.org/notes/jbreen/6… #geowebchat

@JeremyCrampton Aug 21, 12:22pm Here is our drone (quadcopter) set up. Wd like to hear of others using similar opengeography.wordpress.com/2012/07/19/fly… #geowebchat

@mappingmashups Aug 21, 12:22pm @JessiBreen @sablepaws The ball camera is fascinating, but yeah, would need a different software solution to process. #geowebchat

@JessiBreen Aug 21, 12:22pm @mappingmashups I’d like to 3D print a case for my camera with the picavet built, but I lack the rendering skills. #geowebchat

@mappingmashups Aug 21, 12:23pm @JessiBreen @sablepaws Along those lines, one of my profs Elvin Wyly wondered abt sending up one of these: lytro.com. #geowebchat

@JessiBreen Aug 21, 12:23pm @JeremyCrampton Is that a Mikrokopter? #geowebchat

@mappingmashups Aug 21, 12:26pm @JessiBreen Sorry, it’s @Lytro. You can reach their web page from there. Elvin has one, but I haven’t played w/ it. #geowebchat

@JessiBreen Aug 21, 12:26pm @mappingmashups Is that the camera with the infinite focusability? (Not a word, I know.) #geowebchat

@mappingmashups Aug 21, 12:27pm @JeremyCrampton Thx for that link. Also v. curious about drones. Love this link from yr post: dronemapper.com @dronemapper #geowebchat

@mappingmashups Aug 21, 12:28pm @JessiBreen Yes. It’s like it’s focused on everything, and you then select the focus after the fact using their software. #geowebchat

@JessiBreen Aug 21, 12:29pm @mappingmashups I heard about those on NPR and wondered if you could use them to balloon map. Let me know if she tries! #geowebchat

@mappingmashups Aug 21, 12:30pm And if you haven’t seen this example of activist grassroots drone-porn, you must watch it: youtube.com/watch?v=o3OB_4… #geowebchat

@JeremyCrampton Aug 21, 12:30pm @mappingmashups Yes that looks amazing! #geowebchat

@bricker Aug 21, 12:30pm lurking on #geowebchat with spotty Internet access here in Whitehorse today

@JessiBreen Aug 21, 12:31pm @mappingmashups Too cool! #geowebchat

@mappingmashups Aug 21, 12:32pm Hi @bricker! #geowebchat

@JessiBreen Aug 21, 12:32pm @mappingmashups We’re using drones in the lab I work in. We have Mikrokopters, Arducopters and a mutant of the two. #geowebchat

@mappingmashups Aug 21, 12:33pm So, what is the flight time of these drones? And does max altitude matter, or is it not worth worrying about for mapping? #geowebchat

@JeremyCrampton Aug 21, 12:34pm @JessiBreen yes ours is an arducopter #geowebchat

@JessiBreen Aug 21, 12:34pm @mappingmashups Depends on a bunch of factors, we’ve got one that can fly for 30 minutes. #geowebchat

@JessiBreen Aug 21, 12:36pm I don’t know how much max altitude matters, but I’m told we’ve taken one to 250m without loosing communication. #geowebchat

@mappingmashups Aug 21, 12:36pm And I don’t know much about what is available, but mostly these are VTOL copters, not conventional planes (Predator-style?) #geowebchat

@JessiBreen Aug 21, 12:37pm Planes are harder to fly than the multi-roter copters. I think that’s why they’re so popular. #geowebchat

@mappingmashups Aug 21, 12:38pm Oh, & while throwing out twitter accts about drones, may I recommend @drones and @drunkenpredator. Any balloon/kite equivalents? #geowebchat

@JessiBreen Aug 21, 12:39pm I’m excited about this little guy. diydrones.com/profiles/blogs… #geowebchat

@JeremyCrampton Aug 21, 12:39pm Has anyone flown with hi-res camera? Or with an octocopter? #geowebchat

@mappingmashups Aug 21, 12:39pm @JessiBreen True, I just imagine that planes would have much better loiter time, given enough room to fly in circles. #geowebchat

@mappingmashups Aug 21, 12:40pm @JeremyCrampton Has anyone flown the IR camera hacks suggested by @PublicLab? publiclaboratory.org/tool/near-infr… #geowebchat

@JessiBreen Aug 21, 12:41pm @JeremyCrampton We’ve got two octos. #geowebchat

@JessiBreen Aug 21, 12:41pm @mappingmashups Planes do have much better flight times. #geowebchat

@JessiBreen Aug 21, 12:42pm @mappingmashups Kinda, we have a factory IR camera. I’ve done the hacked camera on a kite before. #geowebchat

@mappingmashups Aug 21, 12:42pm @mappingmashups And the main reason I’m interested in loiter time is that it seems like it might be better for aiding protests. #geowebchat

@JeremyCrampton Aug 21, 12:42pm @JessiBreen how is stability on the x8s? better than the x4s? #geowebchat

@JeremyCrampton Aug 21, 12:43pm @mappingmashups we just bought 3 batteries and land, swap them out. v. cheap. #geowebchat

@JessiBreen Aug 21, 12:43pm @JeremyCrampton We mostly used hexas previously, but it’s about the same. #geowebchat

@JessiBreen Aug 21, 12:43pm @JeremyCrampton The upshot with the octo is that you can still land even if you lose a prop. #geowebchat

@mappingmashups Aug 21, 12:45pm @JessiBreen @JeremyCrampton That’s important once police start trying to shoot these down. :) #geowebchat

@JessiBreen Aug 21, 12:45pm @JeremyCrampton We’re launching our new site this week, but the old one is interesting still. ecotope.org/ecosynth/blog/ #geowebchat

@erictheise Aug 21, 12:46pm @mappingmashups that raises an interesting point, how are people and institutions reacting to these tools? #geowebchat #geowebchat

@JessiBreen Aug 21, 12:47pm @mappingmashups Nah, they just take over the radio signal. #geowebchat

@mappingmashups Aug 21, 12:47pm @JessiBreen I’ll read yr site later :) & maybe it answers my question, but I wonder if you are using this as part of teaching? #geowebchat

@JessiBreen Aug 21, 12:48pm @mappingmashups The new site is ecosynth.org, but it isn’t public yet. #geowebchat

@JessiBreen Aug 21, 12:48pm @mappingmashups Not yet, we’re using them as a research tool for forestry applications. #geowebchat

@JeremyCrampton Aug 21, 12:49pm @mappingmashups I’d like to have students do the mission on the laptop, with Ate on the RC to override! #geowebchat

@JessiBreen Aug 21, 12:50pm @erictheise I’m interested in how the government is reacting to the use of drones by the citizenry. #geowebchat

@JeremyCrampton Aug 21, 12:51pm I’m not ready to have 85 freshmen students have a go on the RC! #geowebchat

@mappingmashups Aug 21, 12:51pm @JessiBreen how about anybody else? Balloons & pedagogy? I’m psyched @AndrewShears will be using balloons in a class this fall. #geowebchat

@JessiBreen Aug 21, 12:51pm @JeremyCrampton It’s not as easy as it looks! #geowebchat

@JessiBreen Aug 21, 12:52pm @mappingmashups There is a faculty member here at UMBC using them in a remote sensing course with frosh this fall. #geowebchat

@AndrewShears Aug 21, 12:52pm Sorry y’all…. had a student drop by. #geowebchat

@AndrewShears Aug 21, 12:53pm Being a 2yr school, my class is an odd mix of IntroGIS, misc geotech and mapreading. Will fit nicely. #geowebchat

@JeremyCrampton Aug 21, 12:53pm I’ll be doing same. Will fly drone over their heads in lecture hall to whet appetite (darpa-style) #geowebchat

@AndrewShears Aug 21, 12:54pm Anyone ever experimented with non-flying mapping? I play around with an RC car in my hallway, tempted to slap a camera on it. #geowebchat

@mappingmashups Aug 21, 12:54pm Re: social & gov reactions: there was this interesting article a few months ago: nytimes.com/2012/02/18/tec… #geowebchat

@JessiBreen Aug 21, 12:55pm @AndrewShears @PublicLab I think has some writeups of environmental mapping using a Roomba. #geowebchat

@mappingmashups Aug 21, 12:55pm How do we react when a million @TacoCopter startups start filling the skies? :) The collision hazards alone are terrifying! #geowebchat

@erictheise Aug 21, 12:57pm @mappingmashups thanks for that NYTimes article link #geowebchat

@mappingmashups Aug 21, 12:59pm Any last thoughts before we wrap up? @bricker and I will try another balloon flight in September. Can’t wait! #geowebchat

@AndrewShears Aug 21, 1:01pm Fascinating! RT @JessiBreen: @PublicLab I think has some writeups of environmental mapping using a Roomba. #geowebchat

@AndrewShears Aug 21, 1:01pm @mappingmashups Super-cheap drone recommendations? #geowebchat

@mappingmashups Aug 21, 1:02pm Next #geowebchat will be in 2 wks: Sep 4, same time. Looking for guest hosts or topic ideas. Add yr name to this form: docs.google.com/spreadsheet/cc…

@mappingmashups Aug 21, 1:02pm Yeah, is there a spreadsheet of reviews someplace maybe? RT @AndrewShears: @mappingmashups Super-cheap drone recommendations? #geowebchat

@JessiBreen Aug 21, 1:02pm @AndrewShears The AR.Parrot isn’t bad and the PX4 add-on looks cool. #geowebchat

@JessiBreen Aug 21, 1:03pm @AndrewShears The link: diydrones.com/profiles/blogs… #geowebchat

@JessiBreen Aug 21, 1:04pm @mappingmashups We’ve got one on the new website. It’ll be public on Friday! ecosynth.org #geowebchat

@AngharadStone Aug 21, 1:04pm @AndrewShears camera attached to h-balloon on a string, no good for hostile situations though #geowebchat

@mappingmashups Aug 21, 1:06pm Thanks everybody for a great chat! Transcript will be up soon here: mappingmashups.net/geowebchat/ I know this will be a useful resource! #geowebchat

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