XP40-Q1765 Explosion Protected PTZ Network Camera
Detectors
Detectors
Camera Tampering
Camera Tampering can generate an alarm whenever the camera is repositioned, or when the lens is covered, spray-painted or severely defocused. To send an alarm, for example an email, an action rule must be set up.
To configure tampering detection:
1. Go to Detectors > Camera Tampering.
2. Set the Minimum duration, that is, the time that must elapse before an alarm is generated. Increase time to prevent false alarms for known conditions that affect the image.
3. Select Alarm for dark images if an alarm should be generated if lights are dimmed or turned off, or if the lens is sprayed, covered, or rendered severely out of focus.
4. Click Save.
To configure the product to send an alarm when tampering occurs:
1. Go to Events > Action Rules.
2. Click Add to set up a new action rule.
3. Enter a Name for the action rule.
4. Under Condition, select Detectors from the Trigger list.
5. Select Tampering from the list of detectors.
6. Optionally, select a schedule and set additional conditions.
7. Select the action. To send an email, select Send Notification and select a Recipient from the list of defined recipients.
Note
The While the rule is active option under Duration cannot be used with camera tampering, since camera tampering does not have a duration and once it has been triggered it will not automatically return to its untriggered state.
For more information on actions rules, see Events on page 33.
Motion Detection
Motion detection is used to generate an alarm whenever movement starts or stops in the camera view.
Motion detection is configured by defining up to 10 Include and Exclude windows:
• Include windows — define areas where motion should be detected
• Exclude windows — define areas within an Include window that should be ignored (areas outside Include windows are automatically ignored).
For instructions, see Set Up Motion Detection Windows on page 29.
To control the number of motion detection alarms, the parameters Object Size, History and Sensitivity can be adjusted. See
Motion Detection Parameters on page 29.
Once motion detection windows are configured, the Axis product can be configured to perform actions when motion is detected.
Possible actions include uploading images and start recording. For more information, see Set Up Action Rules on page 33.
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XP40-Q1765 Explosion Protected PTZ Network Camera
Detectors
Note
• Using the motion detection feature may decrease the product’s overall performance.
• The position of the Motion Detection Window is relative to the orientation of the Camera. Changing the orientation of the camera will also change the position of the Motion Detection Window.
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
Description
High level (100%)
Medium level (50%)
Low level (0%)
Recommended values
Default values
Object Size
Object size relative to window size.
Only very large objects trigger motion detection.
History
Object memory length.
An object that appears in the window triggers motion detection for a long time before it is considered as non-moving.
Sensitivity
Difference in luminance between background and object.
Ordinary colored objects on ordinary backgrounds trigger motion detection.
Even very small objects trigger motion detection.
5–15%
15%
An object that appears in the window triggers motion detection only for a very short time before it is considered as non-moving.
60–90%
90%
A large difference in luminance is required to trigger motion detection.
Only very bright objects on a dark background trigger motion detection.
75–95%
90%
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XP40-Q1765 Explosion Protected PTZ Network Camera
Detectors
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.
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