Gateway realization method for converting Ethernet data and digital video streaming

A technology of digital video and implementation method, which is applied in the direction of network connection, pulse modulation TV signal transmission, electrical components, etc., to achieve the effect of saving overhead, saving the overhead of locking and unlocking waiting, and improving system efficiency

Inactive Publication Date: 2009-12-23
BEIJING UNIV OF CHEM TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Therefore, it is urgent to develop a new gateway implementation method for converting Ethernet data and digital video streams, so as to solve the problem of using IP addresses of different network segments on both sides of the wireless device to work.

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  • Gateway realization method for converting Ethernet data and digital video streaming
  • Gateway realization method for converting Ethernet data and digital video streaming
  • Gateway realization method for converting Ethernet data and digital video streaming

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Embodiment Construction

[0034] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings:

[0035] Viewed from a macro point of view, the present invention has independent sending and receiving paths, and has full-duplex and simplex working modes. For the direction of converting IP packets into TS flow data, the work of the embedded processor is to obtain the IP packets, convert the IP packets into TS packets according to the self-defined protocol of the present invention, and store them in the buffer. Then the interface controller reads the TS stream data from the cache, and sends it to the TS modulator at the standard timing of the TS stream. For the direction of converting TS stream data into IP, the interface controller first captures the data sent by the TS demodulator at the standard timing of the TS stream, and stores it in the cache. Then the embedded processor is responsible for restoring the TS data into IP packets and sending them t...

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Abstract

The invention provides a gateway realization method for converting Ethernet data and digital video streaming. The method comprises the following steps: format of network data and format of television video streaming data are mutually converted, namely, interconversion between IP packet and MPEG-2 TS streaming; an embedded processor adopts combination of double buffering configuration and single buffering configuration and configures a boot operation script so that the two configurations are converted from one to another; the double buffering configuration evens flow rate at an IP processing layer and processes each buffer area by a plurality of threads; the single buffering configuration adopts a mode of data buffering under a driving procedure state; an upper layer application program of an embedded system adopts a self-adaptive adjacency list method to automatically acquire the adjacency list in respective network segment and send the adjacency list to an opposite terminal to be converted; IP packet packaging thread and TS unlocking thread realize interconversion from IP format to TS format; and TS receiving thread and TS sending thread execute a complete reverse function in the embedded system. The two sides of wireless equipment can use IP address of the same net segment or the different network segments to work and realize long-distance bidirectional transmission or long-distance unidirectional transmission.

Description

technical field [0001] The present invention relates to a kind of gateway realization method, particularly relate to a kind of realization method of the embedded gateway that carries out IP (Internet Protocol, the interconnection agreement between the network) transmission based on terrestrial digital TV channel, also known as IP over TS (Transport Stream, transport stream) gateway. For wireless Internet transmission. It can realize simplex and duplex transmission in the same network segment or across network segments. Support UDP (User Datagram Protocol, User Datagram Protocol) and TCP (Transmission Control Protocol, Transmission Control Protocol). Background technique [0002] From the perspective of the structure of the Internet, the development status of the physical layer link determines the development trend of the Internet, and the physical layer cooperates with the data link layer to specify the link characteristics, transmission rate, encapsulation method and erro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/24H04L29/12H04L12/66
Inventor 何苏勤乐磊毛世文吕英明吴飞
Owner BEIJING UNIV OF CHEM TECH
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