I asked the intel dude about that very thing since thats what i heard and he said something to the effect that there were some errors in the xenser original units which gave the occasional weird result but they fixed the software and that and the results that were not weird were spot on. sounded like the intel helped them fix the problem?? but they used xensr stuff in the x games no problems. i use the sessions app which has never given me a big jump but sometimes i wish it would. perhaps the apple watch is better quality on the chip that makes it all work? ? i dunno.
Its cold here in northern CA, so I'm always running long sleeves so my watch is kinda protected. I also switched to a watch band with an actual latch and not those stupid holes and pins of the apple and nike bands. those things can come off just messing around with my gf. LOL
Its not 2.7s Hangtime. The 2.7s means it is the 2.7th second of the jump - the pic comes from a video synced with woo.
Well, Kevin's body is in the plane ehre you measure height, so there is no better way to calculate height, unless you have any other reference object in that plane - his board maybe, if angle is right. Imho the biggest error comes from wrong estimation of takeoff point. And yes, such measurements are only an estimation .... I can't understand why people want 0,1m accuracy on jumps. It is not a labKevin-body-meter is video-angle-measure which heavily depends on distance of Kevin to camera. Kevin's body position and posture.
Yes... those white papers and algorithms make it very easy. Wouldn't be surprised of most of the original woo software written is actually around the android app!deniska wrote: ↑Mon Jan 29, 2018 3:34 pm@fluidity: there are a bunch of white papers & algorithms, already written to isolate true vertical acceleration and filter out the noise. You can play with them on your smartphone.. As I said the bottleneck is the accuracy of consumer accelerometers. This is why neither woo,trace,piq or Xensr tell you which chip they use..
bmcfiv wrote: ↑Mon Jan 29, 2018 12:17 pmWow, it would be great to see that data and a "proper" analysis. The other items' you mentioned have some serious implications, so assuming you are right, I'll try to summarize.CaliRider wrote: ↑Sun Jan 28, 2018 9:25 pmWhile grabbing my coffee this morning in the south bay i met a guy Geoff that works for Intel and knew all about sensers for kitesurfing. he said they did some testing of all the devices and trace ranked the worst in jump heights, pique was better but not by much, woo was pretty good but its jump heights were always high (he laughed at the woo records, said those guys are nowhere near as high as woo says they are!) and xenser was the most accurate but they don't seem to make their unit anymore. i asked how they tested and he said they did some test where all the units were on the same object and they 'jumped' it and it had some other measurement device on it that he said was like $25k (!!!). This dude was freakin' smart! He was on the team that did the X games for intel last year with snowboard data. He said the trace guys aren't supporting their product anymore and the french guys are going to run out of money soon. Who's french? He also thought woo was about to be sued because their See Em (C M?) stole the 'jump alego' from the xensr guys. Sounds like a shitload of drama to me. I told him to make the testing data available. Love to see their stuff given this thread.
Wish I paid more attention in math class. lol
Early stage industry, small market, so expect compromises
It's a toy lol, not a pacemaker, enjoy it as a partial solution
Woo is the overall choice, Trace or a Woo with second GPS device (phone) best is you need location
Solely focused on kiteboarding, software is great and social
Some purchase liability with pending Xensr lawsuit (questionable)
Poor jump accuracy
GPS integration solid
Software mediocre, social ok
"Not supporting product", is this kiteboarding or everything?
Looking at Facebook and other posts, it does seem to be quiet over there
Poor jump accuracy
You can strap it to your hand and see how hard you can hit "kiterocky" in the face
Cool display that you can't really see
Unknown b/c of conflicting data
Manufacturing issues / not selling anymore (new website suggests otherwise)
Looks like they reached for the moon with features, but probably didn't have funding to do properly, would love to see them succeed
What happened to Android watch integration?
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