CCFC Field Camera
12
Alternatively, an FTP client such as FileZilla (
https://filezilla-project.org/
) can
be used to batch download multiple files at once.
7.4 Modem
Power
Control
Modem
Power
Control
controls the power for a communication device. One
common application is to have the camera control the power to a
communication modem at a solar powered site. Refer to Section 12.8.4.5.1
Modem Power Control
for configuration details via the web interface.
This power management feature can greatly reduce the system power
requirements by only turning on the modem when required to transmit a photo
or video. The
Modem Power Control
will turn on under the following
conditions:
x
The camera is in one of its low power modes and the
Setup
Button
is
pressed. The camera will exit the low power mode and stay awake for 5
minutes with the switched power output on.
x
A capture event has occured where communications are required including
FTP or Email transfers. Events requiring camera memory storage will not
turn on the switched power output, as these events do not require a modem
for communications. It takes the camera approximately 90 sec to boot up
after power is applied; immediately thereafter, the camera can capture and
transfer files.
7.5 Lens
The CCFC lens contains the following features:
x
Electronic zoom
x
Automatic focus
The zoom and focus can be adjusted through the web interface (see Section
12.5
Lens Position).
7.5.1 Camera Lens and Field of View
The CCFC includes a 4.7 - 64.6 mm lens, which provides an approximate 4
°
horizontal field of view when fully zoomed in and a 67.3
° horizontal field of
view when fully zoomed out.
7.5.2 Camera
Auto
Focus
The auto focus occurs before each capture to ensure photo quality and
compensates for any variations due to temperature or other external factors.
The auto focus can also be used through the web interface’s
Live
Preview
for
photo capture. The auto focus occurs with each manual zoom action, when
adjusting the zoom position from the web interface. If the auto focus fails, the
lens returns to the best position to ensure photo quality. If the camera is in an
extremely dark environment, the auto focus will use the last position that was
in focus to perform the capture.
