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Method, apparatus and system for broadcast data flow control

A technology of broadcasting data and data volume, which is applied in the field of broadcasting communication, and can solve problems such as data overflow, data loss, and waste in the buffer area of ​​the coding area

Inactive Publication Date: 2009-04-01
CENNAVI TECH
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The broadcast data is sent to the broadcast transmitting device through the encoder, and the data rate sent by the encoder is constant. In order to realize that the encoder can send data at a constant rate, it is necessary to control the amount of data sent by the encoder. If the amount of data sent is too large If there are too many, it will cause data overflow in the buffer area of ​​the encoding area, resulting in data loss; on the contrary, if the amount of data sent is too small, the bandwidth for transmitting the broadcast data will not be maximized, resulting in waste

Method used

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  • Method, apparatus and system for broadcast data flow control

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Embodiment Construction

[0019] The present invention will be further explained below in conjunction with specific embodiments and accompanying drawings.

[0020] In order to accurately control the flow of sending data, embodiments of the present invention provide a method, device and system for controlling broadcast data flow.

[0021] The embodiment of the present invention is described by taking RDS-TMC data broadcasting as an example.

[0022] The method for controlling the broadcast data flow provided by the embodiment of the present invention is introduced in detail below, and for the specific process, see figure 1 :

[0023] Step 101, setting flow control parameters

[0024] The parameters include cache upper limit, data transmission protocol, remote login protocol, account number and password used in the remote login protocol.

[0025] For ease of understanding, the following briefly introduces the parameters:

[0026] The buffer upper limit value is the maximum value of the data received ...

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Abstract

The embodiment of the invention discloses a method for controlling the broadcast data flow; the method comprises that: flow control parameters are set, and the present buffer data size of a coder is obtained; the present buffer data size is compared with the buffering upper limit value, and if the present buffer data size is less than the buffering upper limit value, the data is transmitted to the coder. The embodiment of the invention also provides a device and a system for controlling the broadcast data flow and relates to the broadcast communication field; by adopting the invention, the broadcast data flow can be dynamically controlled and the bandwidth for data transmission can be fully utilized; therefore, the invention can be used for controlling the broadcast data flow.

Description

technical field [0001] The present invention relates to the field of broadcast communication, in particular to a method, device and system for controlling broadcast data flow. Background technique [0002] The broadcast data is sent to the broadcast transmitting device through the encoder, and the data rate sent by the encoder is constant. In order to realize that the encoder can send data at a constant rate, it is necessary to control the amount of data sent by the encoder. If the amount of data sent is too large If there are too many, it will cause data overflow in the buffer area of ​​the encoding area, resulting in data loss; on the contrary, if the amount of data sent is too small, the bandwidth for transmitting the broadcast data will not be maximized, resulting in waste. Contents of the invention [0003] In order to dynamically control the flow of broadcast data, the embodiments of the present invention provide a method, device and system for controlling the flow o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L29/06H04H20/55H04L12/801
Inventor 李建军王磊胡磊
Owner CENNAVI TECH
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