Audio and video matrix switch method based on PIS

An audio and video matrix and switching equipment technology, applied in the field of audio and video switching, can solve the problems of displaying information and not being able to communicate to passengers, and achieve the effect of enhancing the overall stability and ensuring the quality of audio and video transmission
CN104469181AActive Publication Date: 2015-03-25TRANSCEND COMM BEIJING
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
TRANSCEND COMM BEIJING
Publication Date
2015-03-25

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Abstract

The invention discloses an audio and video matrix switch method based on a PIS. According to the method, when a normal audio and video playing controller breaks down, a backup audio and video playing controller is quickly and efficiently switched into an audio and video playing system to replace the faulty audio and video playing controller, seamless switching between the two controllers is achieved, the defect that information can not be displayed to passengers due to faults of the normal audio and video playing controller is overcome, audio and video transmission quality of trains is guaranteed, and the mosaic phenomenon, the interruption phenomenon and the like can not occur when the trains runs at high speed. Besides, according to the switching method, it can be guaranteed that limited resources are used in area with higher demands by setting the priority of switching, reasonable distribution of the resources is achieved, and overall stability of the system is improved.
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Description

technical field

[0001] The invention relates to the field of audio and video switching of the PIS system, in particular to an audio and video matrix switching method based on the PIS system. Background technique

[0002] The PIS system means that the subway operator uses mature and reliable network technology and multimedia transmission and display technology to send the specified information to the specified group of people through the display terminal at the specified time.

[0003] The PIS system is a system that integrates multimedia network technology, takes the computer system as the core, and provides information services to passengers through the media of stations and on-board display terminals, so that passengers can take rail transit safely and conveniently through the guidance of correct service information. Under normal circumstances, the PIS system provides real-time dynamic multimedia information such as travel information, train arrival and departure times, tr...

Claims

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