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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

Active Publication Date: 2015-03-25
TRANSCEND COMM BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a method for switching audio and video matrix based on PIS system, which can quickly and efficiently play the backup audio and video when the normal audio and video playback controller fails. The controller is switched to the audio and video playback system to replace the failed audio and video playback controller, which avoids the defect that the information cannot be displayed to passengers due to the failure of the normal audio and video playback controller. In addition, the switching of the present invention The method adopts priority operation, which can use limited resources for areas with higher demand, enhances the overall stability of the system, and more rationalizes the allocation of resources

Method used

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  • Audio and video matrix switch method based on PIS
  • Audio and video matrix switch method based on PIS
  • Audio and video matrix switch method based on PIS

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0146] When the N working controller list 2 broadcast controller fails, the M backup controller list devices are all normal:

[0147] The first is to detect the status of the M1 broadcast controller in the M backup controller list successfully, and judge whether it is in the M backup controller standby list, and the result is yes. Judging that the M1 player is the last player controller in the M backup controller list, if the result is yes, exit the M backup controller list detection step.

[0148] Then detect the status of the N1 play controller in the N work controller list successfully, judge whether it is in the fault list, the result is no, and then judge whether it is in the work list, the result is yes.

[0149] Failed to detect the status of the N2 broadcast controller in the N working controller list, whether it is in the working list, the result is yes, delete N2 from the working list of the N working controller, at this time, the length of the standby list of the M ...

Embodiment 2

[0162] Continue in the state of instance 1. The N2 broadcast controller fails and has been switched to the M1 broadcast controller. The M1 broadcast controller is in the working list of the M backup controller, and the standby list of the M backup controller is empty. Then the N1 broadcast controller also failed:

[0163]The first is to detect the status of the M1 broadcast controller in the M backup controller list successfully, and judge whether it is in the standby list of the M backup controller. Judging that player M1 is the last player in the M backup controller list, exit the M backup controller list detection.

[0164] Then it fails to detect the status of the N1 player controller in the N working controller list, whether it is in the working list, the result is yes, delete N1 from the working list of the N working controller, and the length of the standby list of the M backup controller is 0, so judge Is the priority of the N1 controller higher than the priority of t...

Embodiment 3

[0182] Continue in the state of instance 2. N1 broadcast controller and N2 broadcast controller fail, and both are in the fault list of the N working controller. Because the N1 broadcast controller has a higher priority than the N2 broadcast controller, the M1 broadcast controller switches to N1. The broadcast controller, the M1 broadcast controller is in the working list of the M backup controller, and the standby list of the M backup controller is empty. Then the N1 broadcast controller returns to normal:

[0183] The first is to detect the status of the M1 player controller in the M backup controller list successfully, and judge whether it is in the standby list of the M backup controller. Determine that the M1 player is the last player in the M backup controller list, and exit the M backup controller list detection.

[0184] Detect the status of the N1 play controller in the N work controller list successfully, whether the N1 play controller is in the N work controller fa...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/268
Inventor 王兆祎杨国文
Owner TRANSCEND COMM BEIJING
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