1.1.6
Sectors
There are 32 equal length sectors which may be programmed with an identifying title of
up to 20 alphanumeric characters to identify the general direction the dome is pointing:
these all correspond to Pan direction and are unaffected by Tilt position.
They appear in the same location as Position Titles and replace them when the dome is
resting at a pre-set position.
1.1.7
Bottom
Flip
The dome will automatically pan through 180 degrees as fast as possible when tilted
fully down so that it is possible to follow (a person) moving immediately underneath the
dome with only a single joystick direction to consider.
1.1.8
Camera
Mode
The camera can be switched between colour and monochrome mode, or can be
selected as colour/mono in which case it will automatically switch to mono when the
light level is insufficient for good quality colour pictures.
1.1.9
Digital Zoom Extension
The camera system also allows an extension of the optical zoom by selecting more of
the central part of the picture and expanding this to fill the frame. This feature is
selectable.
1.1.10
Dome Selection Cursor
The menu structure itself, and the choices and selections offered, are searched and
invoked by a single cursor or flashing character and the direction in which this moves
depends on the particular control panel in use. In case the joystick or operating keys
move the cursor ‘the wrong way’ its direction of movement can be reversed, separately
for horizontal and vertical movement.
1.1.11
Text Positioning and Selection
All text can be positioned where it is wanted, replaced with default text (eg: Position 31,
or Sector 18), or removed as required.
1.1.12
Joystick Range
Even if the control panel has a wide range proportional joystick output, the Dennard
Dome has such a wide speed range that both a fast and a slow speed range are
needed to realise the full performance (provided of course that the control panel in
question has a facility to invoke these separately).
The slow speed range is simply the same as the fast speed range following the same
in-built correlation law, but divided by a constant. This constant can be set between 2
and 128.
When this facility is used and a change of range is requested, the change itself will not
occur until the joystick is momentarily returned to zero.
2055
Menu System Manual
Sheet.4
