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what's the meaning of the numbers in the status field ?

 
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Knickohr



登録日: 2011.12.15
記事: 9

記事日時: Mon Dec 19, 2011 1:27 am    記事の件名: what's the meaning of the numbers in the status field ? 引用付きで返信

Hi,

what numbers are these in the status field ?

Example :

status : idle -0 -9

or :

Detecting : -0-61

Can't find these numbers in the error code.

Thomas
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登録日: 2004.08.07
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記事日時: Mon Dec 19, 2011 9:02 am    記事の件名: Re: what's the meaning of the numbers in the status field ? 引用付きで返信

Hi
Additional Numbers are alarm of recording error , so called "under run".
(Sorry this is not written in manual because this spec was added by later updates)

Under run means frame processing or HDD writing cannot catch up the input video stream speed and it suggests the avi file might be broken.
It happens when CPU or HDD writing speed was not enough, or
CPU or HDD was occupied by other tasks such as back ground indexing or unti-virus scanning ....

This generally happens when the PC was not enough powerful, but also it can happen by other reasons.
Most popular cause is HDD automated power off (energy saving) setting of Windows.
If HDD was power off when a event happens, it needs 10 seconds to be ready, so the video will be lost.
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Knickohr



登録日: 2011.12.15
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記事日時: Mon Dec 19, 2011 5:56 pm    記事の件名: 引用付きで返信

Hi,

can't beleave it :

Quad-Core CPU Intel Atom D525 @1.8GHz with 2GB RAM

HD-sleeping is disabled, power-management is OFF, no screensaver activated.

I use a DMK 21AU04 USB-camera with only one frame per second (long exposure time). I only wants to record meteors. (and catching hundrets of airplanes Wink )

Thomas

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記事日時: Tue Dec 20, 2011 9:18 am    記事の件名: 引用付きで返信

Hi Thomas

Believe me Wink
Frame rate and shutter speed is independent on DMK 21AU04.
Which FPS are you using?
(datasheet says It is 60, 30, 15, 7.5, 3.75 FPS, and not 1FPS)

UFOCaptureV2 uses only 1 core at a time.
It requires almost 2.0GHz(Core series or Pentium-M) for 640x480 / 30fps.
It may correspond to 3 or 4 GHz of Atom processor.

I believe Atom 1.8GHz may catch up 7.5fps or slower.
But I never recommend such usage for meteor capturing.
Slow shutter brightens background only. It only make the contrast of moving object worse.

UFOCapture motion detection logic is designed to use 25 or 30fps with shutter speed 1/50 or 1/60.
So everybody uses very high sensitivity camera like Watec902H2Ultimate and not slow shutter camera.
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Knickohr



登録日: 2011.12.15
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記事日時: Tue Dec 20, 2011 5:41 pm    記事の件名: 引用付きで返信

Yes OK Smile

Exposure time is 0.85s. With reading out and processing, the result is about one frame/exposure per second.

FPS in the stream is set to 3.75, but this only make sense in the final video.

Thomas

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Knickohr



登録日: 2011.12.15
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記事日時: Tue Dec 20, 2011 6:10 pm    記事の件名: 引用付きで返信

Oh my dear !

I think, i've found the problem. Tere were some digits after the 3.750... in dhe Fps-field Shocked

I've corrected it and run a "drytest". Now it seems to work. Will test it next night.

Can you, please, make the fields a litte bit wider in the next version ?

Btw.: CPU and disk usage is very low, lower than 10%, mostly by 2 or 3%

Thomas



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