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measuring shuttlecock speed?

Discussion in 'General Forum' started by jchan04, Feb 15, 2009.

  1. jchan04

    jchan04 Regular Member

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    how do the professionals court managment measure the speed of each rally or smash at the end? are there sensors or cameras.. or what is it?
    because i'm watching the european finals 09 and each time the rally is over, a number gets displayed on the four corners of the court and im pretty sure it indicates the speed which the shuttle was travelling at. so how do they do it?
     
  2. Danstevens

    Danstevens Regular Member

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    I'm guessing it's the same way as they do in tennis - radars. There is a way of working it out from films though.
     
  3. jchan04

    jchan04 Regular Member

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    anyone know the science behind it and maybe some use of graphical presentation would be helpful.
     
  4. Danstevens

    Danstevens Regular Member

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    For radar or the video method?

    For radar, I recommend you check this out. This is the best I could find about the other method. They used a stopwatch but you can do it if you know what number of frames per second (fps) a video was recorded at.
     
  5. jchan04

    jchan04 Regular Member

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    thanks for the research, i think they calculate it thru video... you know... distanced travel over time...
    hmm... we'll have to see, any experts here that have had experience with this?
     
  6. allanQ

    allanQ Regular Member

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    with tennis i heard from the commentary that the speed is captured when the ball leaves the hitter's racket .. therefore the highest speed as the ball will always be losing speed along the way ..
    i believe it is the same with badminton coz no way the shuttle can maintain a speed of over 300kmh (super smashes) average especially as the shuttle loses speed much much faster as compared to the tennis ball :p
     
  7. Henzy

    Henzy Regular Member

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    I also was trying to figure this out, especially I wonder about what distance is measured.

    I t has to be the first few meters?

    If I find out anything more, I'll post it here :cool:
     
  8. Henzy

    Henzy Regular Member

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  9. OhSearsTower

    OhSearsTower Regular Member

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    interesting

    so they take the first meter to measure the speed?

    always wanted to know that
     
  10. Henzy

    Henzy Regular Member

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    Me 2 - i mailed the author of the article with the question whether one meter is standard :)

    let u guys know!
     
  11. Henzy

    Henzy Regular Member

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    and already he replied:

    ----------

    Dear Mr. van Veen

    Thank you for your interest in my article. So far, I’ve never heard about any official speed measurements in badminton and hence about any standards in that. However, there are some rumors that other teams also used the shuttle travel distance of one meter over which the shuttle speed is measured.

    Kind regards,
    Christoph Stamm

    ------------------




    Dear Prof. Dr. C. Stamm,



    I read your article (ShuttleSpeed - High-speed real-time video processing in badminton) about measuring shuttle speeds with great interest.



    I was wondering: is there a conventional / normal travel distance that is used standardly as the distance over which the shuttle speed is measured.



    Like, in your article, one meter? I'm always wondering how I'm to interpret the displayed shuttle speeds given in broadcastings of major events.



    Thanks for your time!

    Kind regards,


    Hans van Veen

    The Netherlands
     

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