| 摘要 |
A machine control subsystem is used to provide centralized control during broadcast in a news production system. A director workstation is coupled to a server, which is in turn coupled to any number of external devices that may be used during broadcast to air and display video or audio images. The director workstation uses a graphical user interface to display a list of events that are to occur during the production. The events include all events that are to be aired by any of the coupled devices. A director at the workstation may then control the production of all of the types of events from a centralized control station. To select an event or a sequence of events for production, the director may simply select the event from an event list, and the event will be broadcast without the director having to know particular characteristics of the device to display the event. The director workstation is coupled to a server. The server includes device manager software for interfacing with and controlling the operation of all of the externally coupled devices. By providing a centralized communication pathway between the director workstation and the devices, the server may forward status information about the devices to the director workstation to facilitate redirection of ressources by the director.
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