Avitech Titan 9000 series, Руководство пользователя

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Video Black
Enable
(On / Off)
Activate the “video black” alarm feature.
Note:
1. Analog input signal is not supported.
2. This item only appears for Rainier 3G Plus – (1 card)
Video Detect Area
(L/T/R/B, %)
Change . . .
Freely adjust the horizontal ( L eft and R ight) and vertical ( T op and B ottom)
markers to set the scope of area to be monitored when “no video” occurs.
Note: This item is only available when the previous item is set On.
If the Safe Area item has been previously set, Video Alarm will
temporarily use the mask area border to help you set Video Alarm.
This item only appears for Rainier 3G Plus – (1 card).
Threshold
(mV
/ IRE)
(0 to 140 for mV)
(0 to 20 for IRE)
Set the level (IRE/mV) of the “detect area” below which the signal will be
considered to be black.
Note:
1. This item only appears for Rainier 3G Plus – (1 card).
2. IRE/mV unit will depend on your choice in “System”
Æ
“Option”
Æ
“General”
Æ
“Video black threshold unit”.
Set Duration
(1 to 255 seconds)
Set the time interval to wait before triggering an alarm once the criteria
(video detect area and threshold) for “video black” has been detected.
Note: This item only appears for Rainier 3G Plus – (1 card).
Video Freeze
Enable
(On / Off)
Activate the “video freeze” alarm feature. Freeze detection is done by
comparing successive frames based on the parameters set on the next
two items (Sensitivity Level and Set Duration). Once the alarm is triggered
it will only be released if no other freeze condition is detected.
Note:
1. Analog input signal is not supported.
2. This item only appears for Rainier 3G Plus – (1 card).
Sensitivity Level
(1 to 128)
Set the motion sensitivity of image when “video freeze” alarm will be
triggered. Adjust the sensitivity according to the signal being monitored,
on a range of
1 (for filtering out noise in a noisy signal) to 128 (for a clean
signal). Also, the lower the “sensitivity” level set, a “not so noticeable
difference” in frame by frame content comparison (e.g., a talk show video
where the background is constant and the only motion detectable is the
announcer’s lip movement) may trigger the alarm. In this case consider
increasing the “sensitivity level” or “set duration” (next item) values.
Note: This item only appears for Rainier 3G Plus – (1 card).