Axis P1214-E, Руководство пользователя

Страница: 24 / 48

AXIS P1214–E Network Camera
Detectors
Note
Using the motion detection feature may decrease the product’s overall performance.
Set Up Motion Detection Windows
To set up a motion detection Include Window, follow these instructions:
1. Go to Detectors > Motion Detection .
2. Select the Configure Included Windows option and click New . Select the new window in the list of windows and
enter a descriptive name.
3. Adjust the size (drag the bottom right-hand corner) and the position (click on the text at the top and drag to the desired
position) of the window.
4. Adjust the Object Size , History and Sensitivity profile sliders (see Motion Detection Parameters for details). Any detected
motion within an active window is indicated by red peaks in the Activity window .
5. Click
Save
.
To exclude parts of the include window, select the
Configure Excluded Windows
and position the exclude window within the
include window.
To delete an include or exclude window, select the window in the list of windows and click Del .
Motion Detection Parameters
The parameters controlling motion detection are described in the table below:
Parameter Object Size History Sensitivity
Description Object size relative to window
size. Object memory length. Difference in luminance
between background and
object.
High level (100%)
Only very large objects trigger
motion detection. An object that appears in
the window triggers motion
detection for a long time
before it is considered as
non-moving. Ordinary colored objects on
ordinary backgrounds trigger
motion detection.
Medium level (50%)
A large difference in luminance
is required to trigger motion
detection.
Low level (0%) Even very small objects trigger
motion detection. An object that appears in
the window triggers motion
detection only for a very short
time before it is considered as
non-moving. Only very bright objects on
a dark background trigger
motion detection.
Recommended values
5–15% 60–90% 75–95%
Default values
15% 90% 90%
Note
• To trigger on small objects or movements, use several small motion detection windows rather than one large window
and select a low object size.
• To avoid triggering on small objects, select a high object size.
• While monitoring an area where moving objects are not expected, select a high history level. This will cause motion
detection to trigger as long as the object is present in the window.
• To only detect flashing light, select a low sensitivity. In other cases high sensitivity is recommended.
24