VCS VideoJet 1000, Руководство пользователя

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VideoJet 1000
Video input termination:
Select her the option On , to terminate the video input if the video
signal is not to be looped through (e.g. with a T-plug).
Video sensor The VideoJet 1000 contains an integrated video sensor, which on
the basis of the video processing can register changes in the video
signal. These changes are primarily initiated by movement in the
field of view of the camera.
The sensitivity of the video sensor can be adjusted, so that an alarm
is generated only if a given threshold is exceeded.
In order for the alarm to operate, the following conditions must be
fulfilled:
z
The motion detection must be activated.
z
At least one cell must be activated.
z
Individual parameters must be matched to the environmental
conditions and to the required responses.
z
The sensitivity must be set to a value >0.
Warning!
Light reflections (e.g. in glass facades), switching on or off of flood-
lights or light level changes caused by cloud movement in bright
daylight can cause undesirable responses from the video sensor
and thereby generate false alarms. Carry out a number of tests for
different day and night time conditions in order to ensure correct
operation of the video sensor.
For surveillance of indoor areas, ensure a constant lighting of the
areas during the day and at night.
Uniform surfaces without contrast can trigger false alarms even
with uniform lighting.