VCS VideoJet 1000, Руководство пользователя

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Configuration with web browser
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VideoJet 1000
Object min size [n*n blocks]
The number of sensor cells, which a moving object must cover in
order to generate an alarm, can be specified. In this way it is pos-
sible to prevent too small objects from producing an alarm.
For this, the minimum recommended value is 2 (2 × 2 sensor fields).
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Select the desired value by moving the slider to the desired position
with the mouse key held down.
Alarm indicator
To prevent false alarms, a motion signal can be matched to a given
alarm threshold. In this way, for example, it is possible to filter out
effects caused by the background noise generated in the camera
itself.
The blue line indicates the alarm threshold. Any value greater than
this will produce an alarm signal. The components of the motion
signal generating the alarm are indicated in red.
The alarm threshold can be varied to suit individual requirements.
)
Take note of the amplitude of the movement signal displayed in the
window over a long period and at all light levels likely to be encoun-
tered in practice.
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Move the mouse pointer onto the blue line.
)
Holding the left mouse button pressed, move the blue line to the
required position.
Motion tracking
For certain applications, it can make sense to generate an alarm
only if movement takes place in a particular direction. You can acti-
vate the motion detection and select the direction of movement
required to generate an alarm.
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Select here the option On , in order to activate the motion tracking
feature of the video sensor.