CN101399777A - Method, apparatus and system for broadcast data flow control - Google Patents
Method, apparatus and system for broadcast data flow control Download PDFInfo
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- CN101399777A CN101399777A CNA2008102250932A CN200810225093A CN101399777A CN 101399777 A CN101399777 A CN 101399777A CN A2008102250932 A CNA2008102250932 A CN A2008102250932A CN 200810225093 A CN200810225093 A CN 200810225093A CN 101399777 A CN101399777 A CN 101399777A
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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
The present invention relates to the broadcast communication field, relate in particular to a kind of method, Apparatus and system of controlling amount of broadcast traffic.
Background technology
Broadcast data sends to broadcast transmission equipment by encoder, wherein the data rate of encoder transmission is invariable, in order to realize that encoder can the constant data of transmission rate, control the data volume that sends encoder, if the data volume that sends is too much, can cause buffer area interior data in code area to overflow, cause loss of data; Otherwise if the data volume that sends is too small, the bandwidth that then transmits described broadcast data does not maximize the use and causes waste.
Summary of the invention
In order to realize dynamically controlling the flow of broadcast data, the embodiment of the invention provides a kind of method, Apparatus and system of controlling amount of broadcast traffic.
A kind of method of controlling amount of broadcast traffic comprises:
The flow control parameter is set;
Obtain the buffer area current data amount of encoder;
Described buffer area current data amount and buffer memory higher limit are compared;
When buffer area current data amount during, send data to encoder less than the buffer memory higher limit.
A kind of device of controlling amount of broadcast traffic comprises:
Higher limit is provided with module, is used to be provided with the flow control parameter;
The data volume acquisition module is used to obtain the buffer area current data amount of encoder;
Comparison module is used for described buffer area current data amount and buffer memory higher limit are compared;
Data transmission blocks is used for sending data when buffer area current data amount during less than the buffer memory higher limit to encoder.
A kind of system that controls amount of broadcast traffic comprises computer, encoder, it is characterized in that, also comprises the device of controlling amount of broadcast traffic,
The device of described control amount of broadcast traffic is used to be provided with the flow control parameter; Obtain the buffer area current data amount of encoder; Described buffer area current data amount and buffer memory higher limit are compared; When buffer area current data amount during, send data to encoder less than the buffer memory higher limit.
Method, device, the system of the control amount of broadcast traffic that the embodiment of the invention provides, the data volume of the buffer area by real-time monitoring encoder, accurately control sends to the data volume of encoder, is guaranteeing to make full use of transmission bandwidth under the condition that data are not overflowed.
Description of drawings
Fig. 1 is the flow chart of the method for control amount of broadcast traffic in the embodiment of the invention;
Fig. 2 is the apparatus structure schematic diagram of control amount of broadcast traffic in the embodiment of the invention.
Embodiment
Below in conjunction with specific embodiments and the drawings the present invention is further explained.
In order accurately to control the flow that sends data, the embodiment of the invention provides a kind of method, Apparatus and system of controlling amount of broadcast traffic.
The embodiment of the invention is that example describes with the RDS-TMC data broadcasting.
The method of the control amount of broadcast traffic that the embodiment of the invention is provided describes in detail below, and detailed process is referring to Fig. 1:
Described parameter comprises the buffer memory higher limit, and data send agreement, Telnet, account number that uses in the Telnet and password.
For the ease of understanding, below described parameter is done simple introduction respectively:
The buffer memory higher limit receives the maximum of data for the encoder buffer district, and described maximum determines by encoder, can be the bar number of data, byte number etc.
It is the communication protocol that encoder can be discerned that data send agreement, and described data send agreement can be the combination in any of agreements such as UECP, USEP, UDP, TCP, decides according to the specific coding device.
Telnet is the communication protocol of computer log encoder.Described Telnet can be agreements such as Telnet, SSH.In order to improve the safety of encoder information, the account number and the password of login encoder is set.
In embodiments of the present invention, the agreement that the Telnet encoder is set is Telnet, and the account number of login is test, and password is test; The buffer memory higher limit that encoder is set is 200 message, and it is UECP that data send agreement,
On computer software, pass through Telnet Telnet, the account number of input login is test, after password is test, setting up computer is connected with the network of encoder, then, to the encoder sending controling instruction, access the encoder buffer information page by computer, the cache information page comprises the pages such as RDS buffer memory, DARC buffer memory; After entering the buffer memory page, computer remote obtains the caching page surface information, and analyzing the data volume that obtains current cache in the encoder buffer district is the message bar number.
If the message bar number of current cache reaches or when surpassing 200 of buffer memory higher limits, the buffer area that shows encoder can not continue to receive message, otherwise can cause the buffer area data to overflow, cause the problem of loss of data, in these cases, computer continues the current message number of monitoring buffer area in real time.When the current message number of buffer area is to show that buffer area can receive new message, then enters step 104 less than 200 higher limits.
104, the detailed process to encoder transmission data is as follows:
When the message of code area buffer area was 20, then the receivable data volume in current cache district was the difference of the message number of buffer area higher limit and current cache, i.e. 200-20=180 bar message; Then, send agreement UECP according to the data that are provided with, the acceptable message number of calculation code buffer area is 180 TMC message; Described 180 TMC message are sent to encoder.
After sending the end of message, repeating step 102-104 is realized the real-time monitoring to the code area buffer area.
The embodiment of the invention is an example with the RDS-TMC data broadcasting, but the method is not limited only to this, and is suitable equally to other data broadcastings.Similar because of control method with flow process, do not repeat them here.
The method that the embodiment of the invention provides, by the data volume of buffer area of monitoring encoder, accurately the data volume that sends of control is guaranteeing that data under the situation that buffer area does not overflow, realize effective application of broadcast data bandwidth.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method, be to instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
The device of the control amount of broadcast traffic that the embodiment of the invention is provided describes in detail below, specifically referring to Fig. 2:
A kind of device of controlling amount of broadcast traffic comprises:
Higher limit is provided with module 201, is used to be provided with the flow control parameter;
Data volume acquisition module 202 is used to obtain the buffer area current data amount of encoder;
Described data volume acquisition module 202 may further include:
Data volume acquiring unit 207 is used for from the buffer memory information page, obtains buffer area current cache data volume.
Described data transmission blocks 204 may further include:
Acquiring unit 208 is used to obtain the receivable amount of buffered data in current cache district;
Transmitting element 210 is used for sending described packet to encoder.
The device that the embodiment of the invention provides is realized the dynamic control to the encoder data amount by the current data volume in monitoring encoder buffer district, effectively uses the bandwidth that transmits data.
The embodiment of the invention also provides a kind of system that controls amount of broadcast traffic, comprises computer, encoder, it is characterized in that, also comprises the device of controlling amount of broadcast traffic,
The device of described control amount of broadcast traffic is used to be provided with the flow control parameter; Obtain the buffer area current data amount of encoder; Described buffer area current data amount and buffer memory higher limit are compared; When buffer area current data amount during, send data to encoder less than the buffer memory higher limit.
The system that this transmission embodiment provides uses the device of control amount of broadcast traffic by the computer log encoder, realizes the dynamic control to the encoder data amount, effectively uses the bandwidth that transmits data.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by described protection range with claim.
Claims (8)
1, a kind of method of controlling amount of broadcast traffic is characterized in that, comprising:
The flow control parameter is set;
Obtain the buffer area current data amount of encoder;
Described buffer area current data amount and buffer memory higher limit are compared;
When buffer area current data amount during, send data to encoder less than the buffer memory higher limit.
2, the method for control amount of broadcast traffic according to claim 1 is characterized in that, described flow control parameter comprises:
The buffer area higher limit of encoder, data send agreement, Telnet and login account number and password.
3, the method for control amount of broadcast traffic according to claim 1 is characterized in that, the buffer area current data amount of obtaining encoder comprises:
By input login account number and password, Telnet encoder;
Obtain the encoder buffer information page;
From the buffer memory information page, obtain buffer area current cache data volume.
4, the method for control amount of broadcast traffic according to claim 1 is characterized in that, when buffer area current data amount during less than the buffer memory higher limit, sends data to encoder and comprises:
Obtain the receivable data volume in current cache district;
Send agreement according to described data, calculate the number of the receivable packet in current cache district;
Send described packet to encoder.
5, a kind of device of controlling amount of broadcast traffic is characterized in that, comprising:
Higher limit is provided with module, is used to be provided with the flow control parameter;
The data volume acquisition module is used to obtain the buffer area current data amount of encoder;
Comparison module is used for described buffer area current data amount and buffer memory higher limit are compared;
Data transmission blocks is used for sending data when buffer area current data amount during less than the buffer memory higher limit to encoder.
6, the device of control amount of broadcast traffic according to claim 1 is characterized in that, the data volume acquisition module comprises:
The login unit is used for by input login account number and password, Telnet encoder;
Page acquiring unit is used to obtain the encoder buffer information page;
The data volume acquiring unit is used for from the buffer memory information page, obtains buffer area current cache data volume.
7, the device of control amount of broadcast traffic according to claim 5 is characterized in that, data transmission blocks comprises:
Acquiring unit is used to obtain the receivable amount of buffered data in current cache district;
Computing unit is used for sending agreement according to described data, calculates the number of the receivable packet in current cache district;
Transmitting element is used for sending described packet to encoder.
8, a kind of system that controls amount of broadcast traffic comprises computer, encoder, it is characterized in that, also comprises the device of controlling amount of broadcast traffic,
The device of described control amount of broadcast traffic is used to be provided with the flow control parameter; Obtain the buffer area current data amount of encoder; Described buffer area current data amount and buffer memory higher limit are compared; When buffer area current data amount during, send data to encoder less than the buffer memory higher limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102250932A CN101399777A (en) | 2008-10-28 | 2008-10-28 | Method, apparatus and system for broadcast data flow control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102250932A CN101399777A (en) | 2008-10-28 | 2008-10-28 | Method, apparatus and system for broadcast data flow control |
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| CN101399777A true CN101399777A (en) | 2009-04-01 |
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| CNA2008102250932A Pending CN101399777A (en) | 2008-10-28 | 2008-10-28 | Method, apparatus and system for broadcast data flow control |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101795165B (en) * | 2009-12-29 | 2012-06-27 | 北京世纪高通科技有限公司 | Test method and device of dynamic traffic information broadcasting system |
| CN102801605A (en) * | 2012-02-13 | 2012-11-28 | 北京星网锐捷网络技术有限公司 | Method and device for displaying information |
-
2008
- 2008-10-28 CN CNA2008102250932A patent/CN101399777A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101795165B (en) * | 2009-12-29 | 2012-06-27 | 北京世纪高通科技有限公司 | Test method and device of dynamic traffic information broadcasting system |
| CN102801605A (en) * | 2012-02-13 | 2012-11-28 | 北京星网锐捷网络技术有限公司 | Method and device for displaying information |
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Open date: 20090401 |