Video information processing method

Abstract

The invention relates to the technical field of rail transportation, and discloses a video information processing method, which comprises the three stages of media designing, media edition and publishing, and media playing. In the media designing stage, the edition and designing of media and materials are realized. In the media edition and publishing stage, a play list, play formats and a play plan are set, each player is mapped with corresponding play formats and configuration information is transmitted to the players after the setting is finished. In the media playing stage, the synthesis superposing playing output of media information is realized, and simultaneously, in a media playing process, data updating and player status reporting with a server are periodically performed. By the method, the video information processing cost of a rail transportation passenger information system can be decreased, the complete synchronization of video pictures and sounds can be ensured and continuous and smooth passenger information pictures with high quality can be provided for passengers.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a video information processing method. Background technique [0002] Currently there are 2 patents on rail transit passenger information system: [0003] 1. The new subway passenger information system [see the specific structure figure 1 ]: used in the field of subway monitoring systems, characterized in that it includes: a server for centralized control and information processing of the entire system; a dispatching workstation, which provides operating instructions to dispatchers through its man-machine interface, and communicates The selected operation instructions are sent to the above-mentioned server; the maintenance management workstation is used to edit advertisements, videos and other files through general video editing software, and upload the above-mentioned video files to the above-mentioned server through standard communication protocols; the video distributor i...

AI Technical Summary

Problems solved by technology

Hardware encoding is performed on the server side, audio and video are synthesized and output after hard decoding on the player side, professional encoding and decoding equipment is expensive, and operating costs are high

At the same time, audio and video are output separately, and the number of device interfaces increases, which increases the number of failure points and is not easy to maintain

[0008] 2. The video picture and sound are out of sync seriously

The idea of ​​the existing passenger information system is to transmit audio files and video files separately. Due to factors such as transmission delay, signal attenuation, and inconsistency in the transmission time of audio files and video files, after the terminal is synthesized and played, there are often inconsistencies between the playback sound and the playback screen. Affect the system effect

[0009] 3. When the network transmission is delayed, the screen playback is not continuous and smooth

The existing passenger information system adopts video editing and broadcasting, and information superimposition is completed on the server side, and then the whole is transmitted to the terminal playback mode. The information transmission volume is relatively large. In the case of poor transmission signals, it is difficult to overcome the phenomenon of discontinuous information playback and mosaic.

Especially in the passenger information system of urban rail transit, when the train passes through the tunnel or the signal transmission encounters interference, the information received by the terminal equipment is seriously lost, and the quality of the playback picture is poor, so it is difficult to achieve continuous and smooth playback of the picture

[0010] To sum up, the current video information processing method of the rail transit passenger information system has shortcomings such as high information processing costs, poor synchronization of audio and video images, and difficulty in continuous playback of images when the transmission signal is poor, which ultimately affects system operation and management performance.

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