Specifying An Object's Minimum Speed; Environmental Factors - American Dynamics Intellex Intellex DVMS User Manual

Specifying an Object's Minimum Speed

Click Speed to change an object's default speed (0 = no movement). Objects moving faster than
the selected speed trigger the alarm. The default direction is every direction.
An object moves through the draw zone and target area in the specified direction
at the indicated speed.
A dashed line indicates the direction
the object is moving. (Corresponds
with direction arrow.)

Environmental Factors

When using motion exception, consider:
Factor
Background motion
Lighting
Objects moving too fast
Reflections
Apply speed adjustments
uniformly to all directions.
Comment/Recommendation
Select a location with no continual background motion. For example, do
not place the camera facing trees moving in the wind, a high traffic
roadway, a TV monitor, etc.
Sudden lighting changes, such as turning lights on or off, may trigger
unwanted alarms.
Avoid low light and harsh shadows.
Too little contrast between an object and its background is usually due
to poor lighting.
Because Intellex interprets changes in an object's position over time, a
fast-moving object may not be tracked accurately.
Reflections of objects in windows, mirrors, or other surfaces are
interpreted as other objects. If possible, place the camera so that there
are no reflective surfaces in the camera's view.
Advanced Features
When you click Speed, the
object moves in the active
direction and loops through
the zone at the selected
speed.
Click the arrows to indicate
another direction. Grayed
out arrows indicate a
direction is disabled.
• > faster
• < slower
User's Guide 29