rmichael34
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Registered: 3-8-2010
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![[*]](./images/oxygen/default_icon.gif) posted on 3-8-2010 at 05:07 PM |
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Optical trigger to do helicopter rotor balance
Have you considered using the iphone camera to find ref blade position and do polar plots so a balance could be performed on a helicopter main or tail
rotor?
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BruceTruax
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Registered: 13-5-2009
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| posted on 5-8-2010 at 12:42 PM |
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Helicopter rotor blade
It is an interesting concept but I am not sure if it is practical. The camera in the iPhone essentially runs asynchronously from user space programs.
A programmer does not have access to the video in real time without some hacks. The programs that do this, like Red Laser an other bar code scanning
programs actually do frame grabs of the display screen, process the image and then do another frame grab. They continue this process until they get a
frame they can process. It works well for the bar code application because the frame rate can relatively slow.
iOS 4 may allow for live video capturing in the near future but I am not sure the processor is fast enough to process the images in real time to find
a rotor blade.
Another option might be to capture the audio as a 4th channel. Could you use the audio to synchronize the vibration with the blade position?
Bruce Truax
Diffraction Limited Design LLC
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BruceTruax
Super Moderator
Posts: 54
Registered: 13-5-2009
Member Is Offline
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| posted on 5-8-2010 at 12:42 PM |
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Helicopter rotor blade
It is an interesting concept but I am not sure if it is practical. The camera in the iPhone essentially runs asynchronously from user space programs.
A programmer does not have access to the video in real time without some hacks. The programs that do this, like Red Laser an other bar code scanning
programs actually do frame grabs of the display screen, process the image and then do another frame grab. They continue this process until they get a
frame they can process. It works well for the bar code application because the frame rate can relatively slow.
iOS 4 may allow for live video capturing in the near future but I am not sure the processor is fast enough to process the images in real time to find
a rotor blade.
Another option might be to capture the audio as a 4th channel. Could you use the audio to synchronize the vibration with the blade position?
Bruce Truax
Diffraction Limited Design LLC
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