https://www.youtube.com/watch?v=qghQ5eKGcyE
As a retired electronics/communications engineer, I'd sure like to know how they pull this off, even through a veeerrry long tunnel. My son stumbled upon this link and sent it to me.
Brian (IA) http://blhanel.rrpicturearchives.net.
Fun to watch! But I wish I understood trackside signals bettter. I saw some signals that I figured would slow the train down, but it did seem to concern the driver.
Another thing that is kind of strange, (nothing to do with trains really, just the experience of watching the live video as the train runs). It came to to a stop on a siding at a station and it really appeared it immediately started backing up!
Watching the movement forward for so long created a sensation that it was backing when it was actually stopped. I had to watch the ties at the bottom of the scene to really know that it was NOT moving at all. But glance back up to the center and it appeared to be backing again.
It is a phenomanem known as "Persistance of Motion", the brain is so used to seeing motion in one direction that when the scene stops moving, it appears to be moving in the other direction.
Semper Vaporo
Pkgs.
blhanelAs a retired electronics/communications engineer, I'd sure like to know how they pull this off, even through a veeerrry long tunnel.
Did you retire before they fixed the issue with radio reception in the Lincoln Tunnel? That's likely more complex technically, than transception of digital TCP/IP packet traffic with suppression of short multipath.
I do not have papers to cite on the 'best' configurations or antenna architecture but I'll bet the IEEE digital library would be your friend...
Some good info on this site ..
https://www.moxa.com/Solutions/Railway/Solution/TCN.htm
Is it really daylight in Norway at 21:30 hours on 2 February? It is currently 14:30 (90th meridian west time), and the picture shows plenty of light where the train is.
Johnny
rdamonSome good info on this site .. https://www.moxa.com/Solutions/Railway/Solution/TCN.htm
I think most of that information concerns the 'intranet' on board the train, rather than the infrastructure in the tunnel that keeps the 'train' (and the network that supports all its passengers) connected to the 'outside world'. I think the latter -- how you can do streaming video 'live' at speed while deep inside tunnels -- was the issue he found so compelling. If Moxa is involved with that aspect, I don't see it specifically in any of their white papers or PDFs ... they refer to connection to 'outside towers' to get bridge WLAN throughput, but of course that approach (cellular or not) doesn't work well in tunnels for a variety of reasons.
Presumably the 'embedded computer' they are using as a VDR could be used, or be enhanced so it could be used, as buffering for even substantial amounts of streamed data "in between" connections to external ISP access points. That would support 'live streaming' being recorded over TCP/IP, for example to YouTube, with appropriate provisions; the actual stream wouldn't be live while the train was deep in the tunnel, but would 'update' on the YouTube server at much faster than sequential-frame speed as soon as 'back in contact', the result almost certainly being a full recording available by the time the train reached the end of the recorded trip...
blhanelhttps://www.youtube.com/watch?v=qghQ5eKGcyE As a retired electronics/communications engineer, I'd sure like to know how they pull this off, even through a veeerrry long tunnel. My son stumbled upon this link and sent it to me.
From the linked YouTube site
NOTE: A train is a form of rail transport consisting of a series of connected vehicles that usually runs along a rail track to transport cargo or passengers. Motive power is provided by a separate locomotive or individual motors in self-propelled multiple units. Although historically steam propulsion dominated, the most common modern forms are diesel and electric locomotives, the latter supplied by overhead wires or additional rails. Other energy sources include horses, engine or water-driven rope or wire winch, gravity, pneumatics, batteries, and gas turbines. Train tracks usually consist of two running rails, sometimes supplemented by additional rails such as electric conducting rails and rack rails, with a limited number of monorails and maglev guideways in the mix. This is a clip from the NRK TV-program "Bergensbanen Minutt for Minutt", that shows the train-ride through beautiful Norwegian landscape. Finse is the highest station on the Norwegian railway system at 1222 meters above sea level. The original footage is made and owned by NRK, and is licensed under a Creative Commons Attribution 3.0 license.
Never too old to have a happy childhood!
Balt, the quote you mentioned refers to this clip
https://youtu.be/dnwvXXJwJ6s
not to the one in the link that was posted.
On the other hand, I think you are right to bring up the idea that the "LIVE" in the clip title is more likely to be clickbait than an accurate description of the stream. Engineers, designers, and people in the 'spectrum' tend to overthink things ... was it the Penguin or the Joker who bugged the Batcave, then posed impossible crimes to Gotham's mayor and then 'listened in' for how to execute them in detail? ...
OvermodBalt, the quote you mentioned refers to this clip https://youtu.be/dnwvXXJwJ6s not to the one in the link that was posted. On the other hand, I think you are right to bring up the idea that the "LIVE" in the clip title is more likely to be clickbait than an accurate description of the stream. Engineers, designers, and people in the 'spectrum' tend to overthink things ... was it the Penguin or the Joker who bugged the Batcave, then posed impossible crimes to Gotham's mayor and then 'listened in' for how to execute them in detail? ...
In calling the clip up at the present time - 5:30 PM EST on the East Coast of the USA, it would be something like 10:30 or 11:30 PM in Norway - DARK, yet when calling up the originally linked video it is daylight. Thus the originally linked video is far from LIVE!
BaltACDThus the originally linked video is far from LIVE!
None of them are 'live' regardless of whether the little red 'live' light in the YouTube title bar is on or not. By direct observation.
So yes, far from LIVE
(Of course, if it were either a true or supposed 'live' video, the progress bar at the bottom would only scrub 'backward', like the camera feed on the Roanoke hotel, and you wouldn't be able to see even a couple of seconds into the future...)
Overmod BaltACD Thus the originally linked video is far from LIVE! None of them are 'live' regardless of whether the little red 'live' light in the YouTube title bar is on or not. By direct observation. So yes, far from LIVE (Of course, if it were either a true or supposed 'live' video, the progress bar at the bottom would only scrub 'backward', like the camera feed on the Roanoke hotel, and you wouldn't be able to see even a couple of seconds into the future...)
BaltACD Thus the originally linked video is far from LIVE!
Just realized that myself...
I couldn't see the original poster's video, apparantly my browser won't support it, who knows why, but I certainly could see Overmod's link, and that was just gorgeous! Like riding on the head-end of "The Polar Express!"
In gratitude, here's a link to a head-end ride through the scenic wilds of northern New Jersey, on the Susquehanna's "Toys For Tots" train supporting that Marine Corps Reserve's charity drive.
https://www.youtube.com/watch?v=bHIJBAP9l_I
Some folks don't care for the background music, so turn it down or mute it if you need to. I don't mind it myself.
PS: Go "full-screen" if you can, it's more impressive that way.
I turned one of those videos on one day and the train was sitting at a stop signal.
I thought "that's about right" and turned it off.
The opinions expressed here represent my own and not those of my employer, any other railroad, company, or person.
It stops regularly at red signals on a siding and an opposing train passes on the main, then it gets a green and it continues.
But I think the "Live" aspect in the tiutle has to do with the Live Chat along side the "PRE-RECORDED" video.
Ya like snow? How's about a little "Susie-Q" in the snow?
https://www.youtube.com/watch?v=4SiSljnPPqw
These are shots from North-Western New Jersey, sometimes called "The Skylands." We lived up there before moving to Virginia, and it's quite scenic.
By the way, the shot from Newfoundland is the site of the old Morris County Central steam railroad, gone since the early 80's and still missed by quite a few people. It was a fun ride!
Seeing all that beautiful country reminds me: I don't think we've seen any of Trainboy's beautiful pictures this winter.
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"A stranger's just a friend you ain't met yet." --- Dave Gardner
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