User Manual

9BChapter 10: Camera setup
60 TruVision NVR 71 User Manual
VCA is configured at the camera and not at the recorder. However, you can link actions to a
VCA alarm from IP cameras that support this feature.
Table 3: VCA types
Face Detected When this function is enabled, the camera can detect a moving object that is
moving towards it, triggering a configurable response. The camera can only
detect a face looking directly into the camera, not side views. This feature is
best suited when the camera is in front of a door or is located in a narrow
corridor.
Audio Input Exception This function is used to detect when the camera detects sounds that are
above a selected threshold.
Cross Line Detected This function can be used to detect people, vehicles, and objects crossing a
pre-defined line or an area on-screen. The line crossing direction can be set
as unidirectional or bidirectional (A -> B, B -> A, or A<-> B). Unidirectional is
crossing the line from left to right or from right to left. Bidirectional is
crossing the line from both directions.
Intrusion Detected You can set up an area in the surveillance scene to detect when intrusion
occurs. If someone enters the area, a set of alarm actions can be triggered.
This event type is different from the intrusion events that are reported to the
recorder via the UTC Alarm panel integration.
Defocus Detected The camera can detect image blur caused by defocusing of the lens,
triggering a series of alarm actions.
The sensitivity level determines how much blur is tolerated by the camera
before triggering an alarm. When enabled, the camera regularly checks the
level of image focus (to allow for variations in light during the day) and then
compares the current image to that of the reference image to see if there is
a difference. A high sensitivity level means that there cannot be a large
variance between the reference and current image.
Sudden Scene Change This function is used to detect when the camera detects a change in the
scene caused by an intentional rotation of the camera.
Enter Region Detected This function detects people, vehicles or other objects that enter a
designated area from outside that area.
Exit Region Detected This function detects people, vehicle or other objects that exit from a
designated area, and certain actions can be configured to occur when the
alarm is triggered.
Object Left Behind Detected Unattended baggage detection function detects the objects left in the
designated area such as baggage, a purse, dangerous materials, etc.
Object Removed Detected Object removal detection function detects objects removed from a
designated area, such as exhibits on display.
To setup VCA alarm actions:
1. From the menu toolbar, click Configuration > Remote Configuration > VCA and select
the desired VCA type from the configuration panel.
2. Select the camera for which to set up the VCA alarm.
Note: A pop-up message will appear when the camera does not support this VCA type.
3. Enable the VCA type.