NETAVIS Observer 4.6 User Manual (October 2015)
Page 89 of 204
12.
In the
Time between events (sec)
field you can enter the minimum time that must elapse
before a following event is triggered. This helps to filter out repetitive events.
Minimum time (sec) = 3 means that, after one motion detection event has been triggered, at least
3 seconds must pass before another Motion Detection event can be generated.
13.
In the
Pixel change threshold (%)
field you can define how many pixels in % must change so
that a detection event is triggered.
Pixel change (%) = 20 means that 20% of the pixels relative to the previous frame (detection
cycle) must change for a detection to be triggered.
14.
Optionally you can define a specific event icon and sound for this definition: Click on the
Icon
button to assign a symbol. This icon is displayed in the
Event list
to notify an operator when an
event related to this definition occurs.
Click on the
Sound
button to assign a specific sound to the definition. This sound is played when
a user notification event related to the definition occurs.
15.
After you have entered all parameters for your definition, save it by clicking on the
Save
button.
16.
If you have not yet scheduled a detection-based recording for this camera, you will be prompted
for whether you want to edit the scheduling now.
Click on the
Yes
button if you want to configure the scheduling now. Please refer to section
8.1.3
Scheduling motion detection
on page 89.
Click
No
if you want to do that later.
Please note:
If you add a new iCAT definition, it will automatically be assigned to all iCAT schedules of the
camera. If you do not want that, you have to remove the assignment manually.
If a definition is not assigned to an active schedule then it will not be activated (no archive
recordings will be made and no events will be generated) although it has the
Active
option set.
8.1.3 Scheduling motion detection
The scheduling for simple motion detection is the same as for other iCAT definitions. Please refer to
15.3.15 Scheduling iCAT operation and recording
on page 160.
8.1.4 Controlling PTZ cameras with motion detection events
It is possible to assign a sequence of PTZ positioning actions to each motion detection (MD) field
definition. Once the MD field gets active, the associated PTZ action is executed. PTZ actions can be
assigned to an MD field by appending the following sequence to the MD
Identifier
:
ptz:<CID>:<PresetName>:<WaitTime>:<PresetName>:<WaitTime>...
where:
<CID>
is the ID of a PTZ camera (the ID is shown in
Camera admin > Properties
dialog next to the
camera name). If <CID> is 0, then the MD field's camera is controlled (MD and PTZ camera are the
same).
<PresetName>
is the name of a preset position (as entered in the PTZ definitions).
<WaitTime>
is the pause time in seconds starting from the time when the camera receives the
positioning event.
