Multi-device cooperative control method and device

Abstract

The invention discloses a multi-equipment cooperative control method and equipment and belongs to the technical field of television broadcasting. The method comprises the steps of when a field interrupt signal of a channel broadcast system is received, triggering a synchronizing signal of a plurality of pieces of cooperative work equipment in the channel broadcast system; simultaneously starting a plurality of concurrent threads according to the synchronizing signal, inquiring whether an instruction to be executed exists in an instruction execution queue of the cooperative work equipment, if so, confirming whether the instruction to be executed reaches execution time, if the instruction to be executed reaches the execution time, triggering the threads of the cooperative work equipment to send the instruction to be executed. A mode that a plurality of equipment control threads independently control the equipment is adopted, the concurrent real-time control of multiple pieces of equipment is supported, the synchronizing signal is introduced, the synchronous trigger effect of an independent thread control mode is realized, all instructions are enabled to be sent after the field interrupt signal reaches, and the precision control on a plurality of cooperative work equipment is realized.

Description

technical field [0001] The invention relates to the technical field of television broadcasting, in particular to a multi-device cooperative control method and device. Background technique [0002] In the channel broadcasting system, it is often necessary to control the cooperative work of multiple devices at the same time, such as controlling the system work of the signal source device and the switcher device. These devices may have different timing requirements. If the commands received by these devices are coordinated Time misalignment, even a very small error, may lead to a decrease in broadcast accuracy. [0003] The current automatic broadcast control system generally adopts VDCP (Video Disk Communications Protocol, video disk communication protocol), controls the video server through the serial port (422), and controls the server to play by sending a suitable command sequence to the server at a specified time point. At the same time, in the process of control, it is n...

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Problems solved by technology

[0004] However, the serial control method is used to send the commands in the same thread at a time according to the timing of the commands to be sent, which will cause the responses of the devices to the commands to affect each other. When the feedback from one device times out, the processing of other devices will also be affected, and the broadcasting accuracy will be affected. Difficult to guarantee

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