Dedicated Micros CamVu 720, Руководство по установке и настройке, Страница: 72 / 160

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CamVu 720
Mode The zone mode controls when the reference image is taken for
triggering VMD. The options are:
Normal - The reference image is updated approximately
every second. This will only allow small changes in
the scene without triggering.
Last trigger - The reference image is only updated when the
VMD is triggered and is best used under controlled
lighting, i.e so there are no false triggers due to
ambient light changes.
Static - The reference image is collected on startup and is
never updated. This would be used in ‘sterile’ areas
where there are no changes expected.
Zone disabled - This will disable the zone mode.
Pixel Count (%) This value is set as a percentage and equates to the percentage of
pixels in the selected zone that must change for the VMD event to be
triggered. The default setting is 20%.
Pixel Change (%) This setting is a percentage value of the overall change required in the
grayscale to be included in the pixel count. The percentage change is
defined over the complete range of black to white, a 100% pixel change
would be from black to peak white. The default setting is 20%.
Global Activity Mode Three options are available for Activity activation (specifically in relation
to a PTZ camera).
Selecting ‘Active while at Preset 1’ will result in Activity mode
functioning only when the camera is at preset position 1. Select ‘Active
while camera not in motion’ for Activity mode to function only when the
camera is still. Select ‘Always Active’ for Activity mode to be in constant
operation.
Reload Image (Red) This will update the reference image to the latest view during
set up.
Clear All (Green) Removes all defined zones from the image.
Default Grid (Yellow) Displays the default 16 zone grid across the whole image.
Refresh (Purple) Refreshes the information on the current page.