VIVOTEK FD8131 사용자 설명서

 

 

■ Pre-event recording and post-event recording

The Network Camera has a buffer; 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.

■ Priority: Select the relative importance of this recording (High, Normal, or Low). Recording with a higher 

   priority setting will be executed first.

■ Source: Select a stream as the recording source.

► To enable recording notification please configure Event settings first . Please refer to page 82.

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.

 

for Dynamic Frame Rate Control

I frame   --->   Full frame rate   --->   I frame

► To enable adaptive recording, please make sure 

you’ve set up the trigger source such as Motion 

Detection, DI Device, or Manual Trigger.

► When there is no alarm trigger: 

- JPEG mode: record 1 frame per second.

- H.264 mode: record I frame only.

- MPEG-4 mode: record the I frame only.

► 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 a recording setting.

1. Trigger

 Select a trigger source.

■ Schedule: The server will start to record files on the local storage or network storage (NAS).

■ Network fail: In the event of a network failure, the server will start to record media files on the local 

storage (SD card).