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80
en | Setting up VCA
Note:
For suitable devices, additional analysis algorithms with
comprehensive functions, such as IVMD and IVA, are also
available. Refer to the IVA documentation for more information
on using these.
11.2.3
Motion detector
Motion detection is available for the Motion+ analysis type. For
the detector to function, the following conditions must be met:
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Note:
Reflections of light (from glass surfaces, etc.), lights switching
on and off, or changes in the light level caused by cloud
movement on a sunny day can trigger unintended responses
from the motion detector and generate false alarms. Run a
series of tests at different times of the day and night to ensure
that the video sensor is operating as intended. For indoor
surveillance, ensure constant lighting of the areas during the day
and at night.
Sensitivity
Sensitivity is available for the Motion+ analysis type. The basic
sensitivity of the motion detector can be adjusted for the
environmental conditions to which the camera is subject. The
sensor reacts to variations in the brightness of the video image.
The darker the observation area, the higher the value that must
be selected.
Minimum object size
Specify the number of sensor fields that a moving object must
cover to generate an alarm. This setting prevents objects that
are too small from triggering an alarm. A minimum value of 4 is
recommended. This value corresponds to four sensor fields.
2015.04 | v1.592 | AM18-Q0678
Analysis must be activated.
At least one sensor field must be activated.
The individual parameters must be configured to suit the
operating environment and the desired responses.
The sensitivity must be set to a value greater than zero.
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