Safety transmission method and system for multi-media broadcast video

A technology for multimedia broadcasting and safe transmission, applied in the field of safe transmission methods and systems for multimedia broadcasting videos, can solve problems such as network information security threats, illegal attacks, tampering, etc., and achieve the effects of safe transmission, simple design and cost reduction.

Active Publication Date: 2017-06-13
ZHONGGUANG REDIANYUN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the openness, sharing, and dynamic characteristics of existing multimedia services, the security of network information has been seriously threatened and interfered, and there are security issues such as illegal attacks, tampering, downloading, and piracy. Encryption, but the encryption technology is relatively simple, and problems such as being stolen cannot be avoided. The present invention provides a method and system for secure transmission of multimedia broadcast video

Method used

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  • Safety transmission method and system for multi-media broadcast video
  • Safety transmission method and system for multi-media broadcast video
  • Safety transmission method and system for multi-media broadcast video

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0047] Such as figure 1 As shown, Embodiment 1 of the present invention provides a method for secure transmission of multimedia broadcast video, and the method for secure transmission includes the following steps:

[0048] S1, first judge whether the service gateway 2 is in the signal coverage area of ​​the multimedia broadcast server 1, if it is in the signal coverage area, then the terminal device 3 sends a video broadcasting video to the multimedia broadcast server 1 through the service gateway 2 ask;

[0049] The service gateway 2 needs to be set in the signal coverage area of ​​the multimedia broadcast server 1 in order to effectively receive the broadcast signal of the mobile multimedia. The service gateway 2 is used to receive the mobile multimedia broadcast video, and then send it to the terminal device 3 by wireless or wired means. The device 3 may not be set in the signal coverage area of ​​the mobile multimedia broadcast server 1 , or may be set in its signal cover...

Embodiment 2

[0061] Such as figure 2 As shown, Embodiment 2 of the present invention is further limited on the basis of Embodiment 1. In step S1, it is judged whether the service gateway 2 is in the signal coverage area of ​​the multimedia broadcast server 1. The specific methods include:

[0062] S1-1. The service gateway 2 sends a heartbeat detection packet to the multimedia broadcast server 1 at intervals within a preset time period;

[0063] S1-2. If the multimedia broadcast server 1 receives the heartbeat detection packet, send the feedback information that the service gateway 2 is in the signal coverage area to the service gateway 2 .

[0064] As a client terminal, the service gateway 2 continuously sends heartbeat detection packets to the multimedia broadcast server 1. If the multimedia broadcast server 1 can receive the heartbeat detection packet, it proves that it is within the signal coverage of the multimedia broadcast server 1. If the multimedia broadcast server 1 does not re...

Embodiment 3

[0073] Such as Figure 4 As shown, on the basis of Embodiment 1, Embodiment 3 of the present invention further defines that in step S5, after the terminal device 3 decrypts the decrypted file and the encrypted video file, it plays the multimedia broadcast video, The specific method is:

[0074] S5-1. When playing the multimedia broadcast video, the decryption code information input by the terminal device 3 on the display screen of the bouncing decryption frame popped out of the multimedia broadcast video;

[0075] S5-2. Check the decryption code information. If the information is correct, continue to play the N+1th video frame segment. If the information is wrong, jump to the beginning of the video and stop playing.

[0076] In the above video decryption method, when the terminal device 3 is playing the video, it needs to enter the correct decryption code information on the display screen of the bounce decryption frame to decrypt the video, otherwise it is easy to cause the v...

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Abstract

The invention provides a safety transmission method and a safety transmission system for a multi-media broadcast video. The safety transmission method comprises the following steps: whether a service gateway is within a signal coverage area of a multi-media broadcast server is judged; the multi-media broadcast server divides the multi-media broadcast video into N video frame segments; the last video frame of the N video frame segments is associated with a decryption file to form an encrypted video file, and the file is sent to the service gateway; the service gateway demodulates the file according to a demodulation method with the multi-media broadcast server, and the demodulated file is transmitted to terminal equipment; and after decrypting the file, the terminal equipment plays the multi-media broadcast video. According to the method and the system provided by the invention, cost of the terminal equipment can be effectively reduced, meanwhile video encryption is effectively performed during a data transmission process to prevent the received video from being illegally attacked, tampered, downloaded and pirated, effectively protection is performed on the transmission of the mobile multi-media broadcast video, and safety transmission is achieved.

Description

technical field [0001] The invention relates to the technical field of secure communication, in particular to a method and system for secure transmission of multimedia broadcast video. Background technique [0002] With the popularization and application of China Mobile's multimedia communication technology, consumers can use mobile phones, PDAs, MP3, MP4, computers and other terminal devices to watch digital TV by using S-band satellite signals to achieve "ground-air" integrated coverage and roaming across the country. Or listen to digital radio. [0003] Mobile Multimedia Broadcasting (CMMB) transmits TV programs by means of digital coding, wireless transmission, and mobile reception. Mobile multimedia broadcasting supports mobile reception. In the signal coverage area, you can receive news, information, entertainment and other TV programs anytime and anywhere through terminal devices such as mobile phones, MP4 players, and GPS, so as to meet the various needs of differen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/2347H04N21/222H04N21/44H04N21/4405H04N21/414H04N21/61
Inventor 纪琦华蒲珂方宏李哲山胡彬陈传海蔡忠善张毅萍魏明蔡辉
Owner ZHONGGUANG REDIANYUN TECH CO LTD
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