Abekas AirCleaner, Руководство пользователя

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AirCleaner • User Guide 57
4. Operations
Reaction Time
One Screener Reaction Time Example
Following is an examples to illustrate the principles of the Reaction Time
parameters when one screener is operating AirCleaner.
The illustration below depicts the video input into AirCleaner in the top row of
squares, with each square representing one second of video. Within each second,
there can be up to 30 individual frames of video (depending on the video format).
The RIGHT edge of the top row of video in the illustration represents the first
frames of video fed into the input to AirCleaner, with the LEFT edge being the last
frames.
Likewise, the RIGHT edge of the bottom row of video represents the first frames
out of the video output from AirCleaner, with the LEFT edge being the last frames
output.
Figure 4-18. Reaction Time with One Screener
In the illustration above, the operator pushes the panic button at a point in the input
video stream that is four seconds after the violation had started (
a
). But because the
Screener 1 Reaction Time is programmed for 5:00 seconds, the start of the trigger
is automatically advanced by 5:00 seconds, and the entire violation is masked by
AirCleaner on the video output.
Also notice the release of the panic button is immediately initiated (
b
); there is no
reaction time applied to the release of the panic button, to avoid advancing back
into the violation material.