ipVG Product Guide HeiTel by Xtralis
36 29794_00
Record preview images
When accessing the image archiving device remotely over a low bandwidth connection, low-resolution
preview pictures (256 x 128 pixels) can be stored in the archive. These preview pictures can be used to view
the recorded pictures more quickly during remote access. When preview pictures are saved during recording,
recording speed is slowed down by about 20%. Recording duration is reduced by approximately 10%, as
additional storage space is required for preview images.
Overwrite protection
Activating overwrite protection ensures that existing recordings are never deleted automatically. Individual
camera tracks must be released before overwrite. An individual storage warning threshold can be defined for
each track. Reaching the threshold warning limit (to be set in percentiles) triggers the ipVG error LED to
illuminate and a logfile entry to be written. The threshold warning limit can be reported by relay as well,
depending on device configuration. For remote evaluation with CamControl LITE or CamControl PRO
software a message is displayed that only dedicated image export or switching storage media will ensure
permanent image storage.
Report period less than x days
This option allows the device to issue a warning (error LED, error relay, online evaluation, logfile) if the
specified recording duration for an individual track cannot be maintained any longer. ipVG uses the previous
recordings as a basis for calculation, extrapolating from an assumed regular data volume. Based on the
quantity of data saved on the storage medium and the previously recorded time periods, an estimate is made
of how long (in days) the available storage space will suffice. If this period is less than the set value, the error
relay can be activated, for example.
Delete all pictures older than x days
If special requirements for the period of image storage must be complied with, for example for reasons of data
privacy, a maximum age can be specified for archive images per camera track. Any older images will then be
deleted automatically.
Recording modes
In addition to specifying individual track size, the recording mode must be specified individually for each
camera as well. The basic ipVG distinction is between permanent (long-term) recording and event triggered
recording. Both modes can be set for the same camera. Switching between modes is controlled by an
integrated timer module. The following illustration shows timer control for camera 1.
Note: ipVG provides control inputs only for camera input 1 and 2. The continuous recording mode for
camera 3 and 4 is using the easy mode.
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General