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Path Deviation

JASJAS Posts: 285 Crazy Baller
Any possibility that Zero Off could be designed to measure path deviation of boat during run through course?

Comments

  • lpskierlpskier Posts: 2,699 Mega Baller
    Splasheye already has it.
    John Wilkins- Si non pro sanguine quem ludus ne. #iskiconnelly
  • DUSkierDUSkier Posts: 146 Baller
    @JAS I'm not sure that for position it is accurate enough, this is why we occasionally have to remap the gates due to GPS drift. I'm sure that the technology is out there somewhere though. The Splash eye system works well if you can get it to run i.e. environment has to be ideal
    Nigel Sparrow
  • Orlando76Orlando76 Posts: 1,208 ★★★Triple Panda Award Recipient ★★★
    Then it’d have an alarm that would go off when you’re 3/16” off center line when tolerance is what 4”? Ya know, punish you when you’re not perfect.
    Kimbymon
  • JASJAS Posts: 285 Crazy Baller
    Yea wondered about accuracy. Would be cool if it could give immediate feedback to driver in real time or end of pass.
  • DUSkierDUSkier Posts: 146 Baller
    @JAS the @Splasheye system can be setup to give measurement at end of pass
    Nigel Sparrow
  • SplasheyeSplasheye Posts: 59 Baller
    @DUSkier major upgrade coming this season with redesigned targets that will make it much less environmentally dependent and also allow it to run standalone on a laptop in full automatic mode. Final testing next month!!
    DUSkierscotchipmanauskierKiller
  • BraceMakerBraceMaker Posts: 4,149 Mega Baller
    So... yes it could. Where this technology is actually fairly mature- Agriculture.
    http://agopengps.gh-ortner.com/doku.php#how_agopen_works

    Huge cost if you over apply product x thousands of acres.

    But most tractor GPS systems utilize some sort of local base station to compute actual GPS location error near the tractor.

    Accuracy now sub inch.
    Orlando76
  • gavskigavski Posts: 189 Baller
    Discussed this a few months back....if the gates had a sub-buoy magnet at each end of the course, then the ZO would be able to know exactly where it is at the start & end of the course. Surely this could be used to track the boat path down the course??
  • Orlando76Orlando76 Posts: 1,208 ★★★Triple Panda Award Recipient ★★★
    A little de-railing here but I always like watching boat path videos.
  • BraceMakerBraceMaker Posts: 4,149 Mega Baller
    @gavski start and end is already pretty good. No one cares if the GPS triggers an inh before the entry gates or even many inches before the entry so long as it triggers approximately the same at the other end.

    The lateral deviation is problematic, that same inch error 6 times over is now adding up quickly. Inch left in the gate inch right at one etc. Quickly adds up. Was the boat off or the GPS?
    klindy
  • SplasheyeSplasheye Posts: 59 Baller
    Low cost ($1,000) correcting GPS (using a base station) to sub-inch accuracy has become available. I am testing a prototype at the same time as the final camera based system testing in March. Technology is probably still a year or two away but it will get there. Lots of work to do as well to address concerns like @BraceMaker says. But huge benefits over the current system including live feedback to the driver.
    bishop8950DaveD
  • On_edgeOn_edge Posts: 8 Baller
    I am on an iPad Pro, need help attaching photos to a comment, clicked on photo icon,
    got [ image URL ] and [ Look Up ] button but then a dead end.
    slow
  • Jody_SealJody_Seal Posts: 2,901 Mega Baller
    This is a funny thread! $100k boat add steering control of some manor equals $150K boat.
    Hobby Boats can be expensive when the hobbyist is limited on their own skill and expertise.


    walleyeChris Ellerthager
  • ToddLToddL Posts: 2,823 Mega Baller
    edited February 2019
    While we are dreaming, let's just add a remote heads up display on the dash for real-time L-C-R deviation using horizontal LEDs which represent the extent of the deviation and change color to indicate perfect, acceptable, approaching limit, out of tolerance. Something like this:

    Could possibly @Splasheye control an external display like that..?

    It would have to be easily within the gaze of the driver while the driver keeps his or her eyes on the horizon ahead. The risk will be drivers who are drawn to simply watch the lights and not the actual path of their boat. Thus, a remote display which can be mounted in the best location for each driver would be idea. Possibly suction cup mount so that it can be adjusted for each driver's gaze position and each boat's cockpit/windshield setup.
    -- The future of skiing depends upon welcoming novice skiers regardless of age to our sport.
    Gar
  • MISkierMISkier Posts: 2,787 Mega Baller
    @On_edge, that looks cool. I would really like some feedback like that. What does it show if you exceed a tolerance at a specific buoy or exceed a cumulative tolerance?
    The worst slalom equipment I own is between my ears.
  • Orlando76Orlando76 Posts: 1,208 ★★★Triple Panda Award Recipient ★★★
    ^^^^ WOW that’s really neat.
  • On_edgeOn_edge Posts: 8 Baller
    edited February 2019
    If a deviation measurement exceeds 20 cm it becomes a white value on a black background, pressing the UP key switches over to display the cumulative values, again becoming white on black numbers if the individual cumulative tolerances were exceeded. It had a tournament mode to automatically switch to cumulative mode if any were out of tolerance. It stores in memory the previous 30 passes each time stamped at the entrance gate.
    MISkier
  • jayskijayski Posts: 899 Mega Baller
    @On_edge I will take one ASAP
  • Orlando76Orlando76 Posts: 1,208 ★★★Triple Panda Award Recipient ★★★
    I would think a bank of indicator lights like @ToddL mentioned would be too much going on for the driver. Even not looking at it directly would be a distraction for me. I’d rather see a report after the pass.
    Boat path deviation is important, and for tournament purposes would be helpful along with the video. But I think, in day to day skiing, being in rhythm with your skier is more safe and important. Maybe Perfect Pass can throw a rope switch on there so you can see boat path deviation in conjunction with counter steer in relation to the skier loading out of the ball.
  • BraceMakerBraceMaker Posts: 4,149 Mega Baller
    edited February 2019
    @Orlando76 - tend to agree - I think a readout like that giving you a number at the end of the pass gives you something to go with.

    I think my wife would be able to look at that and "challenge" herself to give better numbers.

    What @ToddL posted however could be fascinating, particularly since it should build up as you deviated on path.

    Even more so - I'd be curious if there would be a way to use that idea in open water, some of our drivers have a tendency to curve which can be hard to tell if you are roughly following a shoreline, have that indicate if the path for the previous 300 feet was straight or mild curve or very curved, maybe with a simple push button to indicate a new heading.
  • jayskijayski Posts: 899 Mega Baller
    heads up display would be a perfect, I bet every video gaming teen would be able to drive a "in tolerance" path in no time with that...
  • lpskierlpskier Posts: 2,699 Mega Baller
    Be careful what you wish for. That data may have to be submitted to a drivers committee resulting in fewer, albeit better drivers.
    John Wilkins- Si non pro sanguine quem ludus ne. #iskiconnelly
    Dragommosley899
  • JASJAS Posts: 285 Crazy Baller
    Several years ago I was at California pro Am and listening to chatter about Driver-Boat A vs B. Then again last summer I followed the Spain Tournament controversy. Got me thinking that some of this could be avoided if a real time metric for boat path was available. Seems that technology is getting close. Drivers may struggle to make the mark
  • motoskiermotoskier Posts: 35 Baller
    All this stuff is creating more and more cost for local tournaments, not to mention qualified people to donate there time to run the equipment. As it is now to compete you really need a boat with ZO, (cost me a fortune a few years ago), not to mention a private ski lake etc.etc., (possible electric boats). We all would like to see the sport grow but for me if I cant compete it seems useless to enter tournaments with unfamiliar equipment, (mainly compete against myself). I started this sport as a family sport, it was something we could all do and afford after the initial investment, if things keep going the way they are it might be cheaper to go Indy car racing
    ForrestGumpthager
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