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Real-time video monitoring system implementing method based on network television set-top box

A network television and real-time video technology, applied in closed-circuit television systems, electrical components, selective content distribution, etc., can solve the problems of long download time and large storage capacity, achieve low packet loss rate, occupy less system resources, Effects with adjustable clarity

Inactive Publication Date: 2012-05-23
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitation of network bandwidth, traditional downloading requires a large storage capacity for audio and video files, resulting in a long download time. Streaming transmission transmits audio and video information from the server to the client computer continuously and in real time, and users do not have to wait for the entire file to be uploaded. All downloads are completed, and only a small amount of buffering time is required to play. When multimedia files such as audio and video are played on the client, the rest of the file will continue to be downloaded from the server in the background.

Method used

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  • Real-time video monitoring system implementing method based on network television set-top box
  • Real-time video monitoring system implementing method based on network television set-top box
  • Real-time video monitoring system implementing method based on network television set-top box

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Experimental program
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Embodiment Construction

[0031] 1. Architecture

[0032] The architecture of the network set-top box real-time video surveillance system is as follows: figure 2 As shown in the figure, we can see that on the set-top box monitoring server side, the software architecture based on the MontaVista Linux embedded operating system is built, and the V4L2 driver camera is used at the bottom layer to capture the original video data. Video for Linux is a The standard video device driver interface is now V4L2. In addition to supporting more video capture devices, V4L2 also adds audio capture devices, FM radio devices, video output devices, etc. V4L2 defines a set for processing multimedia on Linux. The standard application programming interface of the device. Through these interfaces, operations such as opening, reading and writing, and closing can be performed. It has the commonality of "all devices under linux are files", which is convenient for users to call. We use mmap (Map device memory into Application a...

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PUM

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Abstract

The invention relates to a method for achieving a real-time video monitoring system based on an internet protocol television top-set box, which is a method for achieving the function of real-time video monitoring on the internet protocol television (IPTV) top-set box. Based on an added-value extended function provided by an IPTV peer-to-peer computing top-set box developed on a dual-core development platform TMS320DM6446 (Vinci digital platform), the invention provides the method for achieving the real-time video monitoring system based on the internet protocol television top-set box for achieving a household real-time video monitoring system on the IPTV top-set box developed on the basis of the DM6446 platform so as to solve the problems of the read-write operations driven by a video capture device, the call of a DSP MPEG-4 coding interface, the transmission and the control of a RTP (Real-time Transport Protocol) data pack, the achievement of MPEG-4 decoding, and the multimedia interface display based on SDL. The proposal has the advantages of novelty, flexibility, easy expansibility, easy operability, low cost and the like.

Description

technical field [0001] The invention is a method for realizing real-time video monitoring function on an Internet TV (IPTV) set-top box. monitoring applications. Background technique [0002] The hardware platform on which the server side of the monitoring system depends is the DaVinci digital platform (DaVinci) TMS320DM6446 provided by TI for the field of video development. Processing Unit) core high-end embedded development platform, the main frequency is up to 720MHZ. The platform has rich hardware interfaces such as USB (Universal Serial Bus), network card, IDE hard disk interface (Integrated Drive Electronics) and so on. [0003] IPTV (Interactive Personality TV) is an interactive Internet TV, which uses broadband cable TV network and integrates Internet, multimedia, communication and other technologies to provide home users with a variety of interactive services including digital TV. Brand new technology. The options for enjoying IPTV services include 1) computer, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/18H04N21/6437H04N21/442
Inventor 王汝传黄益贵韩志杰徐小龙李玲娟吴敏支萌萌李致远徐鹤
Owner NANJING UNIV OF POSTS & TELECOMM
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