Mapping The Tour de France Riders From Space
Roland Piquepaille writes "It was just a matter of time before someone gets the idea of using satellite localization to map the positions of the cyclists of the Tour de France. In a first test on July 21 during the ascension to l'Alpe d'Huez, ten riders were equipped with receivers and tracked by the EGNOS European satellite positioning system, a preparatory programme for the Galileo system. The European Space Agency (ESA) reports about this first test in "The best view of the Tour is from space." It's highly possible that all riders can get receivers as soon as next year. And this data will be available on the Web, so you will know in real time the exact location of your favorite champion. Read this summary for more details and a computer-generated image showing the respective positions of Lance Armstrong and Richard Virenque, the top-ranked climber, while climbing to the top of l'Alpe d'Huez."
This story would be a whole lot better if it included a biorhythm readout of the steroid or drug content of each rider! I was listening to the CBC radio in the car again today and they had a very insightful discussion about the Belgian Christophe Brandt who withdrew after testing positive for the narcotic methadone. It seems that the Tour is being marred by this drug controversy.
However the tracking system they are planning for next year seems quite a bit better than what is currently available, like this fairly unintuitive flash gizmo on CBC.
The dangers of knowledge trigger emotional distress in human beings.
They are tracked with GPS receivers. EGNOS (European Geostationary Navigation Overlay System) is the European equivalent of WAAS (Wide Area Augmentation System). These systems reduce the distortions introduced by atmospheric effects by measuring the distortions at a number of base stations with known locations and transmitting the distortion map via geostationary satellites.
On another note, Lance won again. It was actually a pretty riveting end to the Tour de France.
Sometimes events inside the peloton go unwatched by commentators who are paying more attention to the leaders who have broken away from the main group. It would be nice to be able to see the jockeying that occurs between teams and individuals.
The data feed could also be used to help keep track of riders as they go after the green (points) jersey. This is a really exciting part of the Tour de France that never really gets as much attention as it deserves.
Let's hope this data gets put to good use. Kudos to the ESA!
Read the EFF's Fair Use FAQ
This would be a good use of APRS (automatic position reporting system). The basic idea is that you plug a gps into a handheld HAM radio, and the radio transmits your position at periodic intervals.
-jim
Hey, slashdot, how about moving a little quicker on the submissions now and then. This info would have been nifty about 3 days ago. Seeing as I just watched Lance roll through Paris I suppose we're now just early for next year.
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Would be nice if they used some sort of extrapolation of the original data points to make the animation more smooth. Currenlty, they just place a picture of the rider at each data point, which doesn't looke very attractive. Would be nice to see an animated picture of the pike and rider as well. But then again, this is a proof of concept for the Galileo project, and not a tool for the media.
who | grep -i blond | date cd ~; unzip; touch; strip; finger; mount; gasp; yes; uptime; umount; sleep
This is a TERRORIST ATTACK waiting to happen! They will be sorry when the SCUD MISSILES are taking out riders with CENTIMETER PRESICION!
Bikes are no more affected by drugs than Baseball, Football, Soccer, track and field, swimming, you name it, there are drugs. It's only the sports that crack down on drug use that fight with the immage problem, such as the Olympics and Tour de France.
who | grep -i blond | date cd ~; unzip; touch; strip; finger; mount; gasp; yes; uptime; umount; sleep
I wonder how heavy those things are, and how much it will cost them timewise in the aggregate. Imagine nearly killing yourself on small things that add up to a win or lose at the end, but always know you have this dead weight. Or are the cyclists happy about it because it is better for the fans? Do they weigh everyone's gps units to make sure they are the same? I can see people shaving off the edges of the silicon..
"These EGNOS receivers were put in the car of the team director following the cyclists" So really, they were monitoring the team cars, and not the riders. This sounds similar to the DARPA Grand Challenge, OnStar, etc.
http://tinyurl.com/4u8sa
There are issues related to possible conflicts.
Man, if Lance beat riders from space, I have even more respect for him. Those guys have, like, photon torpedos and shit on their bikes!
When all you have is a hammer, everything looks like a skull.
Mechanic: "Alright Lance, lets go through the checklist before you start the time trial."
Mechanic: "Two pound carbon fiber frame?"
Lance: "Check."
M: "180 gram tires?"
L: "Check."
M: "150 gram Titanium cogset?"
L: "Check."
M: "5 pound GPS transmitter on your helmet?"
L: "Uuuugh! Cccheeeck!" (Falls over.)
Wired had a story about Lance Armstrong's equipment and how they consider shaving 2 ounces off the weight a major improvement. Why would a rider want to carry additional deadweight, even if it is a 2 ounce GPS?
This is already done for NASCAR drivers. PitCommand uses differential GPS to track all 43 NASCAR Nextel Cup drivers every race. It also uses sensors to monitor throttle, break, and RPM.
Although it is a pay service, you can see a demo here (recent version of the Java plugin required).
Tracking race cars is more difficult than tracking bicycles due to speed. Tracking things at high speed is more difficult, because it is difficult to keep four satellites acquired. Also, race tracks have banking and grandstands, which obscures GPS signals.
When I first read the headline, I envisioned a geostat satellite taking a visual survey of the tour de france. But if you RTFA its nothing but a souped up european version of WAAS + GPS, and the trackers are not even attached to the riders bikes to boot. Kinda disappointing... but at the same time not much of a loss. Cycling isn't exactly a play by play sport. The espn highlight reels more than suffice to capture the excitement and perhaps some mayhem when someone crashes the peloton. Do you really want to see Lance climb a mountain for 2 hours.
As for drug use in the TdF, despite what many people say, the reason why drug use seems so prevalent in the TdF is because of how seriously the French race officials enforce their regulations, opposed to say major league baseball.
Nuclear war would really set back cable. - Ted Turner
If they started using the helicopter cams for the sprints. They're always filming the sprints from ground-based cameras in front of the riders with ridiculous amounts of zoom. You have no chance to see who's in the lead or who's coming up fast or falling behind. Instead you have to rely on the commentator stuttering the name of whatever rider's in the lead. Hey, it's not radio, it's TV - I want to see it.
They've got the chopper hanging around all afternoon anyway, so what's the big deal?
Any sufficiently advanced libertarian utopia is indistinguishable from government.
If Armstrong comes back for another try next year, he'd have to worry about giving some of the spectators his exact coordinates. Today: spit, tomorrow: precision guided munitions.
> Man, if Lance beat riders from space, I have even more respect for him. Those guys have, like, photon torpedos and shit on their bikes!
He'll have to avoid the photards. They have photards -- the red-shirts who get stuck in the tube when trying to load... they get stuck to the enemy's field generators and cause brown-outs.
The dangers of knowledge trigger emotional distress in human beings.
What do you mean "favorite champion"? THERE CAN ONLY BE ONE!
Cite please?
It has been ages since a French cyclist dominated the tour like the non-French cyclists have been doing for the past editions. As far as I know, the French cycling public, like their like-minded counterparts in the rest of Europe having nothing but respect for Lance Armstrong (with the exception of some nagging doubt about him being dope-free, but that goes for every cyclist in the top-10 in the Tour).
Mart"I know I will be modded down for this": where's the option '-1, Asking for it'?
No, I didn't know this. Can you quote a source?
I do remember some commentary during earlier tours (sorry, I can't quote) saying that the French media was upset with Armstrong because he didn't spend much time doing interviews. But, I think that has changed in recent years.
Do all French citizens despise Americans, or is it just the subset labeled "idiots"?
> Do all French citizens despise Americans
of course not, do all American citizens despise the French ?
The French only have problems with a very minor non-representative subset of Americans, the ones in the white house.
Lance has said many times he loves the Tour de France and he loves France, and he even learned to speak French. Most of the French respect him, but there are always a few guys who won't.
The proportion of xenophobic idiots, I imagine, is about the same in most countries.
Panurge has posted for the last time. Thanks for the positive moderations.
Take a look around Google News for Lance Armstrong and spitting. French and German fans...
This guy is way out there
This American only has a problem with French people that were spitting on Lance Armstrong.
This guy is way out there
Oh... the german fans were also spitting on Jens Voigt, who is german too... So I would say the antipathies are quite evenly distributed.
Is it worse than a Belgian being assaulted by one French people, being punched in the kindney, having a double fracture and tremendous pain in his back, and finishing only second of the tour de France, despite falling several time due to pain? I'm talking about the attempt of a 6th victory of Eddy Merckx.
... it's not about data, it's about the riders.
I don't want to see every bit of telemetry. I can't be there live, and sometimes I can't watch it on TV. (Work does tend to frown on that a bit.)
So I want to see words. I want to read a description of how the sweat is pouring off Ivan Basso as he wobbles up the last agonizing meters of Col d'Madeleine and looks over his shoulder at Virenque, a hundred meters behind. I couldn't care less whether his heart rate is 200 or his cadence is 86.5. I want to hear about Lance posing for photos and sipping champagne as he rides into Paris, not that he's doing it at 28.8 km/hr.
The folks at Velonews did a spectacular job this year describing the minute-by-minute action over every stage. I'm not going to link to it, because they'd probably have me killed if I got their server slashdotted now that it's all over, but if you care, you can find it. It's better than all the telemetry in the world.
To cite l'Equipe, the magazine for the Tour de France: LE TRIOMPHE DU ROI. Translation: The Triumph of the King.
"Between strong and weak, between rich and poor [...], it is freedom which oppresses and the law which sets free"
A couple of other implementations, with various wrinkles: one that is assisted, and one that stands alone.
I've done some interesting plots by driving around town with a GPS receiver, a data cable and a laptop.
...laura
Actually it was "Germans" not French persons. That is quoting Lance, and the Race Director who saw it up close. It was lougies not spit. They were tossing stuff as well. Pretty sad. I will never purchase and T_Mobile product after hearing this as these were T-Mobile supporters. "Drunk Germans" is one quote I heard made. The French love the underdog as many of us do and of course will root for them. This is their race, in their country. They can be proud to host the biggest and best cycle race in the world. In every little town the people were out appaluding all the riders. Actually the French have a class act when it comes to le Tour de France. They were not spitting on riders. It was the damm tourists.
If you don't like what I write don't be a CS and mod it down. Refute it.
Yea I can't spell. So what is your point?
IT was German T_Mobile fans doing the spitting. Voigt who I saw interviewed on that leg was disgusted in them. He call them crazy persons.
If you don't like what I write don't be a CS and mod it down. Refute it.
Yea I can't spell. So what is your point?
(did you know for instance that tap water in many cities contains high traces of Oestrogen ? Does that make you a transexual ?)
No i wasn't aware. Do you have any sources? I'd be fascinated.
----
"There is always some madness in love. But there is also always some reason in madness."- Friedrich Nietzsche
The other thing you have to understand is that there were hundreds of thousands of people spectating on the time trial - the commentators were saying 900,000. The crowd looked dozens deep on both sides of the road, all the way up the 16-odd kilometre (10 mile) course. The likelihood of a few drunk morons within a crowd that big is remarkably high, and given how close the spectators get to the riders it's a credit to the spectators that the riders almost always get through unmolested. Still, I have to agree with Armstrong that a time trial up that mountain wasn't a particularly good idea by the organizers - if they were going to do it, there should have been barriers the whole way up the mountain.
Be that as it may, personally I'd be just as worried about accidental interference with riders as deliberate attacks. I dunno how it actually was on the road, but there was a moment in the last stage where they were cruising (and I mean really cruising...I could have sat in the peloton at the speed they were going) through the countryside just outside Paris. Armstrong was nearly speared by an flag on a long pole. An American flag.
Any sufficiently advanced technology is indistinguishable from a rigged demo
--Andy Finkel (J. Klass?)
The article says that the receiver was mounted in the team cars for 10 select riders, not physically attached to the riders themselves. On a time trial, each rider gets a follow vehicle to help with any mechanical issues or crashes, and the follow vehicles are usually very, very close to the rider (it looks like 10 to 15 feet). So any weight would be fine, since it'll be dragged around by a gasoline motor.
...I'll state flat-out that I'm no good with maths, but I've ridden a few different wheelsets in my day, and it's pretty easy to tell the difference. It really depends on the event; aerodynamics definitely figure more than weight in a time trial, at least one where you're going fast enough for slipstream to come into play (unlike Alpe d'Huez). Those carbon disc & 5-spoke wheels are tank, relatively speaking.
The pain was excruciating and the scarring is likely permanent, but that just means it's working.
Until I saw this story, I didn't even know that there _were_ Tour de France Riders from Space. In any case, I think it's a good thing they're being mapped.
There's a low limit weight on the bikes. 6.8 kg I think. Lance's bike was under that, and they had to add stuff to make it heavier. They can easily add a 100g or so device, and stay at the 6.8kg mark.
It's now not so much a matter of making the bike lighter, as what part to make lighter.
They (Postal) use special lightweight clothes for the climbing stages. No joke.
Virenque was already across the line at 5:12 PM, a full 27 or so minutes ahead of Armstrong (Richard having left the gate at 4:31 and Lance having departed at 4:59). The movie makes it look like this was positioning of the two concurrently during the race , but it is only showing a comparison of Richard's and Lance's efforts on the course. Of course, Lance dusted him!
You are just supporting my point. The spitting was not so much about nationality as about Not-Being-Jan-Ullrich-Of-T-Mobile. Not that Jan Ullrich himself is to blame, it was more the way german media was stylizing this year's Tour as the big battle between Jan Ullrich and Lance Armstrong. So when this battle was not happening as expected until the last week, some people felt they should get crazy against anyone who seem to do better than Mr Ullrich in the Tour.
That's crap and reflects much more on your attitude than it does on the attitude of any Frenchman.