
DCN Next Generation Open Interface Release 2.4 Camera Control
en | 128
Bosch Communications Systems | 2007 February | SRS_CCINF | Du020905
2. CAMERA CONTROL FOR A REMOTE INTERFACE
2.1 Introduction
The Camera Control Remote Interface is part of the DCN Next Generation software that
allows for another controlling entity outside the CCU, not being the DCN Next Generation
Control PC, to use the Camera Control application.
2.2 Remote Camera Control Control
Camera Control is the application that allows configuration of Automatic Camera Control.
Typical configuration issues are e.g.: setting camera assignments, setting camera acticity,
setting global settings etc. More details on the complete CC application can be found in the
user manual.
Configuring Camera Control with a remote interface is achieved by means of calling a defined
set of Remote Functions and acting upon a defined set of Update Notifications. The general
concept of Remote Functions and Update Notifications is described in [SRS_INF]. also
describes the protocol and hardware conditions concerning the remote interface.
Together with this remote interface, there are at the moment two locations in a fully
connected CCU where CC can be influenced. These locations are:
• A remote controller (which can be the control PC) connected using an Ethernet (in case of
MCCU) or RS-232 (in case of SCCU) connection. This remote controller uses Remote
Function calls to configure Camera Control.
• Chairman or delegate units influence Camera Control indirectly: if their microphone is
activated and a camera was assigned to their position, the camera is activated.
To get a fully operational system the remote controller must register itself to the CCU, in order
for it to receive update messages from the CCU.
Remote functions coming from the remote controller can indirectly initiate update notifications
in the CCU. Note that these update notifications are actually generated in connected camera
equipment. Depending on the fact whether or not camera equipment is connected to the
CCU, and on which type of equipment is connected, update notifications may be sent to the
CCU. The CCU then forwards these to the remote controller.
Since the update notifications are only generated indirectly, they will always be received after
the reception of response information of a remote function. The remote controller must wait
for the response of the remote function. After reception of the response appropriate action
should be taken upon the error code returned.
Events coming from a unit (chairman or delegate) are processed and the CCU is updated.
Although there are no events that directly lead to generating and sending notifications, there
are unit events that can indirectly lead to notifications. Again note that it depends on the type
of equipment used and its connection state whether or not the notifications are sent. The
notifications are sent on by the CCU to the registered remote controller.
This document gives the set of Remote Functions and the set of Update Notifications
concerning Camera Control. The relation between Remote Function, sent by the remote
controller, and Update Notifications is given in the description of each separate Remote
Function. The (indirect) relation between unit events and Update Notifications is given in
section 4.1.2.
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