User`s manual

VPort 2141 Video Encoder User’s Manual System Configuration
4-14
Motion Detection
Three areas of the image can be configured for the VMD (video motion detection) function. The
VMD alarm will only be triggered when the VMD conditions in these 3 specific areas are met.
Each area can be fine tuned to fit the environment for different VMD conditions by setting the
Sensitivity and image change Percentage.
1. Sensitivity sets the measurable difference between two sequential images to indicate motion.
2. Percentage sets the minimum size of the image whose motion will be detected (e.g., if
Object size = 30%, then the system will only detect the motion of objects that occupy an area
larger than 30% of the total monitored area; the motion of objects with size less than 30% of
the monitored area will NOT be detected).
How to Set up a VMD condition
Step 1: To enable VMD settings, checkmark the □ Enable Motion Detection box.
Step 2: Click on the New button. A VMD window will pop up. Right click the title bar of this
window to move the location of the VMD window, or drag the boarder to change the
window size so that it fits the desired VMD area.
Step 3: Use Window Name to assign a name to this VMD window (refer to the Trigger
Condition in the Configuration/Application page).
Step 4: Set up the Sensitivity and Percentage parameters by moving the percentage cursor.
Step 5: Click on the Save button to save the settings.
Step 6: To test the VMD condition, check the action of the graphics bar on the left side of the
save button. Wave your hand in front of the camera, in the VMD area, and then note
which color shows up in the graphics bar. Green means VMD is not triggered. Red means
VMD is triggered.
Step 7: Users will see a red frame with the VMD window size in the homepage’s image if the
VMD is triggered.