Remote video accessing system and method

Abstract

The invention provides a remote video access system and a method. The system is a system for point-to-point remote receiving and watching of home digital television programs and comprises at least one home digital television program signal source device, a wireless network, a video processing device and a mobile terminal, wherein the video processing device comprises a program signal receiver, a video coder, a streaming media server and a video transmitter; the video processing device receives a mobile terminal access request from a mobile network, establishes a wireless connection with the mobile terminal, and acquires television program information source information which is compressed and encoded and then sent to the mobile terminal by the streaming media server and the video transmitter through the mobile network; and when the mobile terminal selects a preview mode, the video processing device acquires multi-path television program signal resource information, and displays a multi-path television program on the mobile terminal. By using the system and the method, the home digital television programs can be received anytime and anywhere through the mobile terminal.

Description

technical field [0001] The present invention relates to mobile TV technology, and specifically refers to a system and method for realizing remote video access through a mobile terminal. Background technique [0002] With the rapid development of wireless communication technology, audio and video coding technology, and large-scale integrated circuit technology, users are no longer satisfied with watching TV programs on fixed terminals, but hope to watch TV programs anytime, anywhere while freely moving. The use of mobile terminal TV services for programs you like is relatively common. The so-called mobile terminal TV service refers to the service of watching TV programs through mobile terminals. [0003] At present, the development of broadcasting technology has realized the broadcasting of TV programs to mobile terminals through the broadcasting TV network, so that users can watch TV programs whether they are indoors or outdoors, local or remote. [0004] Although broadcast...

AI Technical Summary

Problems solved by technology

[0004] Although broadcasting has the above-mentioned advantages, it also has the following disadvantages: First, although the TV program can be encrypted by broadcasting, the key can only be sent in groups, not in a targeted manner; therefore, even if there is only When a user chooses to watch a certain program, the radio and television network must also issue keys to all user terminals in the coverage area, resulting in unnecessary waste of system resources and network bandwidth, and also increases the probability of key cracking, which is not conducive to Ensuring the business security of operators is also not conducive to effective authentication of user qualifications; secondly, when broadcasting TV programs, the broadcasting TV network has no way of knowing whether the terminal has received the TV program. In order to ensure successful reception, it can only repeatedly In addition, the transmission of TV programs through broadcasting is one-way transmission, and users cannot give feedback, so they can only receive passively, but cannot achieve active participation

[0006] This method can realize directional transmission of programs and user interaction, but it also has the following disadvantages: first, the bandwidth provided by the mobile communication network is insufficient, so the user's viewing effect cannot be guaranteed; second, the SP / CP network Bandwidth and server resources are limited by the number of users. Therefore, if there are many users watching at the same time or the network is congested, the viewing effect of users cannot be guaranteed

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