HRDVS Reference Guide
Rev 2.00
61
Document 900.0281
02/07
P
During event video clip recording, the HRDVS can record up to 10 fields per second (fps)
for NTSC. Normally you set up each event so that the maximum recording rate is not
exceeded during a single type of event. However, there could be times when multiple
events occur at the same time. In that case, the HRDVS may be sent a recording request
that would cause the maximum recording rate to be exceeded. As events occur, each event
is placed in a queue and recorded at the rate set for it in Program mode. As the unit nears
the maximum number of fps, each additional event causes the maximum recording rate to
be exceeded. This causes the HRDVS to drop the rate at which all currently active events
are being recorded. The benefit is that all active events are recorded, even if they are forced
to record at a slightly lower recording rate.
Example
You are using a PAL system and a text event is detected that causes camera 1 to be
recorded at 10 fps maximum. An alarm input causes camera 2 to be recorded at 10 fps.
Then a motion event is triggered that would normally cause camera 3 to be recorded at 5
fps, exceeding the PAL maximum recording rate of 10 fps.
The HRDVS drops the recording rate of the first two events to 5 fps and starts recording the
third event at 10 fps. If further events occur, the HRDVS drops the recording rate, as
needed, for all currently active events so that there is some recording capacity available for
additional events.
To calculate how much disk space is required for storing event data, see
.
Access the Event Recording menu as follows:
Main
Setup
➤
Install
➤
Event Recording
.
displays.
Figure 11-1
Event Recording Menu
General Event Setup
There are some conditions that are common to all event records. Use the Event Handling
screen to set how the HRDVS responds when it detects events.
1.
Access the Event Handling screen as follows:
Main
Setup
➤
Install
➤
Event
Recording
➤
General Setup
.
displays.
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