VIVOTEK
User's Manual - 131
The alarm trigger includes: motion detection and DI detection. Please refer to Event Settings on page 106.
â– Pre-event recording and post-event recording
The Network Camera has a buffer area; it temporarily holds data up to a certain limit. Enter a number
to decide the duration of recording before and after a trigger is activated.
â– Priority: Select the relative importance of this recording (High, Normal, or Low). Recording with a higher
priority setting will be executed îš¿rst.
â– Source: Select a stream for the recording source.
â–º To enable recording notiîš¿cation please conîš¿gure Event settings îš¿rst . Please refer to page 106.
If you enable adaptive recording and enable time-shift cache stream on Camera A, only when an event
is triggered on Camera A will the server record the full frame rate streaming data; otherwise, it will only
request the I frame data during normal monitoring, thus effectively save lots of bandwidths and storage
space.
Time
Bandwidth
Bandwidth
Activity Adaptive Streaming
for Dynamic Frame Rate Control
I frame ---> Full frame rate ---> I frame
Continuous recording
NOTE
â–º To enable adaptive recording, please make sure
you’ve set up the trigger source such as Motion
Detection, DI Device, or Manual Trigger.
â–º When there is no alarm trigger:
- JPEG mode: record 1 frame per second.
- H.264 mode: record I frame only.
â–º When the I frame period is >1s on Video settings
page, firmware will force decrease the I frame
period to 1s when adaptive recording is enabled.
Please follow the steps below to set up the recording.
1. Trigger
Select a trigger source.
â– Schedule: The server will start to record îš¿les on the local storage or network storage (NAS).
â– Network fail: Since network fail, the server will start to record îš¿les on the local storage (SD card).
NOTE:
NOTE:
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