Moxa Technologies 2140 Manual de usuario descargar pdf (Pagina 47)

VPort 2140 User’s Manual System Configuration

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Motion Detection

Each channel has its own separate motion detection settings. The settings, which include Object

size and Sensitivity, allow administrators to fine tune the VPort to fit the environment:

1. Object size sets the minimum size of objects 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.)

2. Sensitivity sets the measurable difference between two sequential images to indicate motion.

A larger object size and lower sensitivity will cause the VPort to ignore small variations in images.

When the motion amplitude of some objects in the monitored screen exceeds the settings, a white

letter M with red background color will appear in the upper-right corner to the window.

ATTENTION

Motion detection is provided as a reference because it is environment-dependent. When the

settings are configured to be very sensitive to motion, some triggered events might be false

alarms, since in fact there is only a tiny difference between sequential images. False alarms can

be triggered by the flashing of florescent lights, shifting of shadows, etc.

Before completing the Video configuration, 3 items need to be confirmed.

Modulation

There are 3 types of Modulation. Administrators can set the auto-detected condition during

initialization by selecting Auto, but can still set it manually by selecting NTSC or PAL. When

you change the camera modulation, a warning message will pop up to inform you that the system

will restart to validate the new modulation.

ATTENTION

Although the analog cameras have 2 different standards, NTSC or PAL, all of the cameras

connected to VPort 2140 Video Server should use the same standard.

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Moxa Technologies 2140 Manual de usuario Pagina 47