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Bicycle Safety Survey for my engineering design class. Very easy,please have a look! Thanks!
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#2
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Bicycle Safety Survey for my engineering design class. Very easy, please have a look! Thanks!
On Sun, 1 Dec 2013 12:59:35 -0800 (PST), wrote:
If you're a bicyclist, please take this survey. https://www.surveymonkey.com/s/Z3L5GHF Done. It's not too difficult to guess what product you're thinking of designing. The problem with a video camera is that it will probably be forward facing. AFAIK, most vehicle hits bicycle accidents ocurr with the vehicle approaching from the side, not a head on collision. There's also the problem of "dooring" which also requires a somewhat side looking camera. You'll probably need two cameras, a split image camera, or a very wide angle lens, in order to catch all possible directions of approach. Good luck. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#3
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Bicycle Safety Survey for my engineering design class. Veryeasy, please have a look! Thanks!
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#5
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Bicycle Safety Survey for my engineering design class. Very easy, please have a look! Thanks!
Per Jeff Liebermann:
You'll probably need two cameras, a split image camera, or a very wide angle lens, Couple of these might do the trick: http://www.youtube.com/watch?v=7wmIyD1fM4M Although battery management might get old after awhile. -- Pete Cresswell --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com |
#6
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Bicycle Safety Survey for my engineering design class. Very easy,please have a look! Thanks!
On Sunday, December 1, 2013 3:59:35 PM UTC-5, wrote:
If you're a bicyclist, please take this survey. https://www.surveymonkey.com/s/Z3L5GHF I'm curious about what the exact assignment was. - Frank Krygowski |
#7
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Bicycle Safety Survey for my engineering design class. Very easy, please have a look! Thanks!
On Sun, 1 Dec 2013 12:59:35 -0800 (PST), wrote:
If you're a bicyclist, please take this survey. https://www.surveymonkey.com/s/Z3L5GHF on the last question, I rated "visual design" #6 only because "not important at all" wasn't an option -- but when I shop for a helmet, I won't even look at a hat that doesn't come in white. When I do look at one, the first thing I check is "can I attach my rear-view mirror?" An adjustable chin strap would be nice, too. I've no idea what "safety functionality" is, but functionality has to be important, so I rated that #1. -- joy beeson at comcast dot net http://roughsewing.home.comcast.net/ The above message is a Usenet post. I don't recall having given anyone permission to use it on a Web site. |
#8
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Bicycle Safety Survey for my engineering design class. Very easy, please have a look! Thanks!
On Sun, 01 Dec 2013 17:58:40 -0500, "(PeteCresswell)"
wrote: Per Jeff Liebermann: You'll probably need two cameras, a split image camera, or a very wide angle lens, Couple of these might do the trick: http://www.youtube.com/watch?v=7wmIyD1fM4M 120 degree viewing angle. Not too horrible, but it would be nice if there were two lenses or two sensors in one package. Although battery management might get old after awhile. That's not the only problem. http://www.youtube.com/watch?v=C_CdjXVgQfY Mobius 1080p spy camera attached to a model airplane. The problem is that the case is anything but aerodynamic and starts to whistle at flight speeds. I don't know if you can go fast enough on a bicycle to produce the same problem, but it should be tested. I was really impressed by the lack of picture distortion until I read the authors comments that he had to use Adobe Premiere Pro CS6 to clean up the fisheye distortion from the video. http://www.kenrockwell.com/tech/fisheye-hemi.htm Also, note that the YouTube video is in 360p, not 1080p. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#9
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Bicycle Safety Survey for my engineering design class. Very easy, please have a look! Thanks!
On Sun, 01 Dec 2013 13:50:12 -0800, Jeff Liebermann
wrote: On Sun, 1 Dec 2013 12:59:35 -0800 (PST), wrote: If you're a bicyclist, please take this survey. https://www.surveymonkey.com/s/Z3L5GHF Done. It's not too difficult to guess what product you're thinking of designing. The problem with a video camera is that it will probably be forward facing. AFAIK, most vehicle hits bicycle accidents ocurr with the vehicle approaching from the side, not a head on collision. There's also the problem of "dooring" which also requires a somewhat side looking camera. You'll probably need two cameras, a split image camera, or a very wide angle lens, in order to catch all possible directions of approach. I put a Canon camera running CHDK on the back rack pointing to traffic coming from behind. It was set to take a still every 3 seconds and later turned into video. It was scary. But that setup is fair weather only and delicate to boot. We use a Chinese camera (water resistant) on the front of our RANS Screamer. It points forward and misses cars that cut us off coming up to intersections. All you can see is the car turning right, not the approach where they pass us 10 feet from the intersection and then do a hard right turn. It is wide angle (170 degrees) but you can only make out a license plate when the car is directly in front. I would like something that points back and to the left so's to catch following/passing cars. 1-3 frames per second is plenty and that keeps SD card usage down. A second camera is needed front left and a third front right for dooring. Both front cameras could be in 1 housing. |
#10
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Bicycle Safety Survey for my engineering design class. Very easy,please have a look! Thanks!
Frank Krygowski wrote:
On Sunday, December 1, 2013, wrote: If you're a bicyclist, please take this survey. Julian Watanabe still fails to explain why. Seems like his professor is overpaid. js.surveymonkey.com/s/Z3L5GHF He actually pays umich to do be doing this? Or is it sponsored by some darling auto company? I'm curious about what the exact assignment was. Survey the extent to which scared cyclists might be willing to shoulder the cost of technical crash avoidance systems that the auto industry or motor vehicle operators should really be paying because integrating these kinds of systems into automotive electronics makes much more sense? I do readily pay for my bicycle lights and, more grudgingly, for reflective devices -- but that's it. |
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