Vivotek CC9380-HV, Руководство пользователя

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VIVOTEK
User's Manual - 61
- Flickerless :
Fixed iris models can encounter image rolling band issues when operating under incongrous
power line frequency with fluorescent lights. To solve the problem, the Flickerless mode can limit
the exposure time to 1/120 ~ 1/5 second. For the Auto iris models, when the exposure time is
limited to 1/120 ~1/5 second, iris size is automatically adjusted, and that the image brightness
is appropriately adjusted. Although the chance is rare, for Fixed iris models, when the exposure
time is limited to 1/120 ~ 1/5 second, they may encounter image over-exposure. If the Flickerless
option is selected, and users discover over-exposure from the live view, they can disable the
Flickerless option.
The Profile mode is not available when the IR cut
filter is configured in the Auto mode.
Please follow the steps below to set up a profile:
1. Select the Profile mode tab.
2. Select the applicable mode: Night mode or
Schedule mode. Please manually enter a
range of time if you choose Schedule mode.
3. Configure Exposure control settings in the
folowing columns. Please refer to previous
dicussions for detailed information.
4. Click Save to enable the setting and click
Close to exit the page.
You can click Restore to recall the original settings without incorporating the changes. When
completed with the settings on this page, click Save to enable the settings.
If you want to configure another sensor setting for day/night/schedule mode, please click Profile to
open the Profile of exposure settings page as shown below.
Activated period: Select the mode this profile to apply to: Day mode, Night mode, or Schedule
mode. Please manually enter a range of time if you choose Schedule mode. Then click Save for the
configuration to take effect.
Auto : If you set Exposure mode as Auto , the Exposure time and Gain control will not be
configurable since the sensor library will automatically adjust the value according to the ambient
light. Then you can configure iris mode as “indoor” or “outdoor” to reach the best image quality.
Note that when the WDR Pro function is enabled,
the Measurement window is not configurable.
NOTE:
■ AE Speed Adjustment :
This function (Automatic Exposure) applies when you need to monitor fast changing lighting
conditions. For example, the camera may need to monitor a highway lane or entrance of a
parking area at night where cars passing by with their lights on can bring fast changes in light
levels. The same applies if the camera is installed on a vehicle, and when it needs to adapt to
fast changes of light when entering and leaving a tunnel. The speed level and sensitivity can be
manually adjusted.