User Manual

English _53
●● SETUP SCREEN
Defocus detection
You can configure settings to generate an alarm signal when a defocus of the camera lens is detected.
1. From the Setup menu, select the <Analytics (
)> tab.
2. Click <Defocus detection>.
3. Set whether or not to <Enable Defocus detection>.
4. Configure settings for each item.
• Level of detection : An alarm is generated if the current
level is higher than the detection level configured.
• Sensitivity : The higher the intensity is, the higher the level
of the chart that is output for the same video.
• Minimum duration (s) : An alarm is generated if the
level state higher than the detection level remains continuously for the minimum monitoring duration
configured.
5. Configure the event motion schedule and event motion conditions.
`
For more information about <Event activation time> and <Event action settings>, refer to “Alarm input”. (page 50)
6. When done, click [Apply].
J
`
After an alarm for defocus detection is generated, if you want to receive an alarm for defocus detection again, you need to
return to a stable state at least once. Examples of returning to a stable state are as follows.
-
Use Defocus Detection check box is deselected
-
If an object in the video moves to a position at which good focus is ensured and thus an identifiable tempering is detected
`
In the following cases, the defocus detection performance may be impaired or a malfunction may occur.
-
Monotonous monitoring environment, night or low illumination environment
-
Sudden changes in the illumination (e.g. indoor light shutting off)
-
Lens blocked by a large object that covers almost all of the screen
-
Changes the focus object by changing the camera position.
Fog detection
You can configure settings to generate an event signal when fog is detected.
1. From the Setup menu, select the <Analytics (
)> tab.
2. Click <Fog detection>.
3. Set whether or not to <Enable Fog detection>.
4. Configure settings for each item.
• Level of detection : An alarm is generated if the current
level is higher than the detection level configured.
• Sensitivity : The higher the intensity is, the higher the level
of the chart that is output for the same video.
• Minimum duration (s) : An alarm is generated if the
level state higher than the detection level remains continuously for the minimum monitoring duration
configured.
5. Configure the event motion schedule and event motion conditions.
`
Defog : Specifies whether to use the fog removal function when fog is detected.
`
For more information about <Event activation time> and <Event action settings>, refer to “Alarm input”. (page 50)
6. When done, click [Apply].
J
`
After an alarm for the fog detection is generated, if you want to receive an alarm for fog detection again, you will need to
return to a stable state at least once. Video improvement after fog removal is not recognized as a stable state. Examples of
returning to a stable state are as follows.
-
Use Fog Detection check box is deselected.
-
Video is identifiable as fog or smoke disappears.
`
In the following cases, fog detection performance may be impaired or a malfunction may occur.
-
Monotonous monitoring environment, night or low illumination environment
-
Sudden changes in the illumination (e.g. indoor light shutting off)
-
Lens blocked by a large object that covers almost all of the screen
-
Changes the focus object by changing the camera position.