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NVR Software - SeeTec Surveillance
This time range can be specified in an Alarm scenario as the maximum pre-alarm
duration. If standard recording is enabled, the pre-alarm duration from the
standard recording is transferred to the alarm recording. If standard recording is
disabled, the images for the pre-alarm duration are buffered in the SeeTec
installation directory and transferred to the alarm recording when the alarm
scenario starts.
You can control manual alarm recordings by using the Start and Stop buttons or,
in Surveillance Mode, by right-clicking in a camera image. In case you forget to
stop an alarm recording, the recording process is automatically terminated after the
maximum post alarm duration in order to avoid continuous alarm recording.
3. Define the size of image store during alarm recording in the Size of image
store during alarm recording field.
This value represents the storage reserved in the MultimediaDatabase. If the
available storage space for images has been used up, the most recent recording will
overwrite the oldest recording (loop recording).
You can also specify an additional time limit. If the storage is not sufficient, loop
recording is used where the oldest record is deleted and replaced by the current
recording. If there is more storage available than required, surplus storage is not
used for recording.
Data Aging
With Data Aging, you can reduce the storage space of the video data by configuring
the time from which on the frame rate of older recordings will be reduced
automatically.
1. Activate Data Aging for standard recording and / or alarm recording.
2. Enter a time limit in the Time limit (days) field.
3. Enter the frame rate in the Frame rate (fps) field.
When the recorded images are older than specified in the time limit, they will be
reduced to the specified frame rate for Motion JPEG recordings.
For MPEG-4/H.264 recordings, all P-frames will be deleted independently from the
specified frame rate.
Example:
You record 20 images per second with an I-Frame distance of one second. Data
Aging reduces the frame rate to one image per second, because all P-Frames are
deleted.
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Important
The maximum post alarm duration does not have any impact on
alarm recordings that are triggered by an alarm scenario.
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