CCTV Camera Pros Geovision 8.5 Multicam Digital Surveillance System - Manual (Page 211)

Video Analysis
193
3
„ Tolerance Time of Alarm: Sets the duration of scene change before an alarm condition is
activated.
„ Automatically Disable Alarm: Stops all types of triggered alerts, including sound alarm,
flashing boxes and output module after the specified duration. Disabling the alerts will not
disable alert settings and the detection in progress.
„ Skip Instant Light Change: Ignores sudden illumination changes and avoids false alarms.
For example, light switches can cause illumination changes suddenly. With the option
selected, the system will ignore significant illumination changes without triggering the alarm
and continue monitoring. See the Note in Crowd Detection earlier in this chapter for possible
risk.
„ Invoke Alarm: Enables the computer alarm when the scene change is detected. Click the […]
button next to the option to assign a .wav sound file.
„ Output Module: Activates the output device when the scene change is detected. Click the […]
button next to the option to assign an installed output module and a pin number.
„ Never Recycle: Enables the system not to recycle the event files of scene change.
4. You can click Test to test your settings. If the scene change cannot be detected, increase
Sensitivity value to increase system sensitivity to changes in the camera view.
5. To activate the function at certain times only, click the Schedule button and select Active
Schedule. For details, see Video Analysis Schedule later in this chapter.
6. Click OK to apply the settings.
7. Start monitoring to run the application.
When a scene change is detected in the camera view for the specified time, its location will be
highlighted in live video, the selected alarm or output will be activated, and the event will be recorded
as Advanced Scene Change in System Log for later retrieval.