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Implementation method and related equipment and system for reducing code rate

A bit rate, front-end equipment technology, applied in the implementation method of bit rate reduction and related equipment and system fields, can solve the problems of video quality degradation, video picture blurring, discarding, etc., to achieve performance requirements improvement, avoid impact, and satisfaction Improved effect

Active Publication Date: 2011-11-30
深圳华为云计算技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] During the research and practice of the prior art, the inventors of the present invention found that when the performance of the storage device is degraded and cannot meet the performance requirements of the video recording service, the service monitoring platform will randomly discard some data packets received from the PU, resulting in The quality of the video is seriously degraded, such as the video screen is blurred, paused, etc.

Method used

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  • Implementation method and related equipment and system for reducing code rate
  • Implementation method and related equipment and system for reducing code rate
  • Implementation method and related equipment and system for reducing code rate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] See figure 1 An embodiment of the method for implementing code rate reduction in the embodiment of the present invention includes:

[0021] 101. Obtain the first video data rate received by the service monitoring platform from the front-end device and the maximum write data rate supported by the storage device;

[0022] Step 101 may be executed by the service monitoring platform, or may be executed by other newly added equipment.

[0023] The service monitoring platform can be connected to at least one front-end device PU. The first video data rate is the sum of the video data rates received by the service monitoring platform from all front-end devices. For example, if there are 3 PUs, the service monitoring platform receives from each PU. The video data rates of the are respectively 2Mbps, 4Mbps, 6Mbps, then the first video data rate is the sum of the three rates, namely 12Mbps.

[0024] The maximum write data rate supported by the storage device is the maximum write data per ...

Embodiment 2

[0036] See figure 2 , Another embodiment of the method for implementing code rate reduction in the embodiment of the present invention includes:

[0037] 201. Obtain the first video data rate received by the service monitoring platform from the front-end device and the maximum write data rate supported by the storage device;

[0038] For step 201, please refer to the description of step 101.

[0039] 202. Determine whether the maximum write data rate supported by the storage device is less than the first video data rate, if yes, perform step 203, otherwise end the operation;

[0040] For step 202, please refer to the description of step 102.

[0041] 203. Divide the difference between the first video data rate and the maximum write data rate supported by the storage device by the first video data rate to obtain the bit rate reduction percentage, which is used to instruct the front-end device to reduce the video bit rate according to it ;

[0042] Step 203 may be executed by the service...

Embodiment 3

[0057] figure 1 The illustrated embodiment may be executed by a service monitoring platform. In order to cooperate with the service monitoring platform, the storage device may obtain the maximum write data rate and send it to the service monitoring platform. The following describes the implementation method of reducing the code rate in the embodiment of the present invention under this situation.

[0058] See image 3 , Another embodiment of the method for implementing code rate reduction in the embodiment of the present invention includes:

[0059] 301. The storage device periodically obtains the maximum write data rate supported by the storage device, and determines whether the maximum write data rate obtained in this cycle is lower than the average value of the maximum write data rate obtained in the previous predetermined number of cycles by more than a predetermined value Threshold, if yes, go to step 302;

[0060] If it is determined that the maximum write data rate acquired i...

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Abstract

The embodiment of the invention discloses a realization method for lowering a code rate. The method comprises the following steps of: obtaining a first video data rate received from front-end equipment by a service monitoring platform; storing the maximum written-in data rate supported by the equipment; judging whether the maximum written-in data rate is less than the first video data rate; and if so, sending a request for lowering a code rate to the front-end equipment so that the front-end equipment lowers the video code rate. The embodiment of the invention also provides a corresponding equipment system. According to the embodiment of the invention, the phenomenon that the performance of the storage equipment is lowered can be detected; performance requirements for the storage equipment can be adaptively lowered so as to improve the degree of satisfaction of the storage equipment to the performance requirement of video recording service; service monitoring platforms are reduced, even the phenomenon that data packets are randomly abandoned is avoided, and influence on video quality is reduced and avoided.

Description

Technical field [0001] The present invention relates to the field of communication technology, in particular to a method for implementing code rate reduction and related equipment and systems. Background technique [0002] Network Video Surveillance System (NVS, Network Video Surveillance) is based on digital signal processing and adopts a networked way to realize signal transmission, exchange, control, video storage and on-demand playback. NVS mainly includes front-end equipment (PU, Peripheral Unit), business monitoring platform, storage equipment and client equipment; among them, PU is responsible for collecting video data and encoding processing, and sending the data to the business monitoring platform; the business monitoring platform sends the data It is stored in the storage device, and when the client device needs to display the video, the data is read from the storage device and sent to the client device; the client device decodes the data sent by the business monitoring...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/647H04N21/234H04N21/433
Inventor 孙文敏李耀辉
Owner 深圳华为云计算技术有限公司
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