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Synchronous playback method and device

A technology of synchronous playback and transmission equipment, applied in the field of communication, can solve the problems of inaccurate control, large synchronization time error, long synchronization playback start time, etc., to achieve the effect of ensuring time synchronization and reducing preparation time

Active Publication Date: 2017-02-22
济南宇视智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During this process, not only too much interactive information between the requester of the synchronous playback, the server, and the sender of the synchronous request will lead to a long start-up time of the synchronous playback, but also the images of each camera are played back separately, so during the playback process Inaccurate control, resulting in a large error in synchronization time

Method used

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  • Synchronous playback method and device
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  • Synchronous playback method and device

Examples

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Embodiment Construction

[0047] As mentioned in the background technology, the existing synchronous playback requester only treats it as multiple separate playbacks when performing synchronous playback, and these playbacks are started and controlled separately. The control is inaccurate, and the synchronization time error is large.

[0048] In order to solve the above technical problems, the application proposes a synchronous playback method, which carries the information of a group of cameras that need to be played back in the message process of initiating playback, and sends these information to SIP (SessionInitiation Protocol, Session Initiation Protocol) The server, the SIP server, according to the recording storage location of a group of cameras, sends the camera recordings stored in the same storage device to the media stream receiver at one time through packaging, and the media stream receives the camera recordings stored in different devices at the same port, and the receiver After decapsulati...

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Abstract

The invention discloses a synchronous playback method. When receiving a synchronous playback request message from a receiver, a server sends the synchronous playback request message to specific sender; a specific field in the synchronous playback request message includes identifiers of front-end devices which need synchronous playback, and the specific sender stores video monitoring data of the front-end devices, so that the server establishes a session between the receiver and the specific sender via session configuration information of the sender, and then the receiver can receive the video monitoring data corresponding to the front-end devices synchronously via the session; and thus, required preparation time for synchronous playback of the front-end devices is reduced, and it is ensured that videos are played back synchronously.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a synchronous playback method. The invention also relates to a synchronous playback device. Background technique [0002] GB / T28181-2016 "Public Security Video Surveillance Networking System Information Transmission, Exchange, and Control Technical Requirements" was proposed by the Science and Technology Information Bureau of the Ministry of Public Security, and is under the jurisdiction of the National Security Alarm System Standardization Technical Committee (SAC / TC100). A national standard jointly drafted by the Institute and other units. This standard stipulates the interconnection structure in the public security video surveillance network system, the basic requirements and security requirements for transmission, exchange and control, as well as the technical requirements for control, transmission process and protocol interface. This standard applies to the scheme de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/2387H04N21/239H04N21/258H04N21/262H04N21/437H04N21/472H04N7/18H04L29/06
CPCH04L65/1069H04L65/40H04N7/18H04N21/2387H04N21/2393H04N21/25808H04N21/262H04N21/437H04N21/47217
Inventor 孙令亮
Owner 济南宇视智能科技有限公司
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