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Video multicast achieving method based on session initiation protocol (SIP) monitoring system

A technology of monitoring system and implementation method, applied in the direction of transmission system, electrical components, etc., can solve the problems that cannot solve the actual application requirements, and achieve the effect of strong compatibility and flexible business control

Active Publication Date: 2013-11-06
FUJIAN STAR NET COMM
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AI Technical Summary

Problems solved by technology

However, these methods cannot meet the practical application requirements.

Method used

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  • Video multicast achieving method based on session initiation protocol (SIP) monitoring system
  • Video multicast achieving method based on session initiation protocol (SIP) monitoring system
  • Video multicast achieving method based on session initiation protocol (SIP) monitoring system

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Embodiment Construction

[0040] Such as figure 1 Shown is a schematic structural diagram of a typical SIP monitoring system, which mainly consists of three types of roles:

[0041] The server, the core of the whole system, mainly includes SIP signaling service and media service, which is responsible for terminal registration, authentication, session routing and management, and media stream transfer and other functions.

[0042] IPC is an IP camera, and it is also a SIP UA. And it can compress and encode the collected audio and video through RTP to transmit, and at the same time, it can play the audio and video RTP stream transmitted from the opposite end.

[0043] The SIP monitoring client is also a SIP UA, which can receive the RTP audio and video stream of IPC, and decode and play it. At the same time, in some monitoring systems with call function, it can also collect and encode the voice of the monitor and encapsulate it into an RTP stream for transmission. to the IPC.

[0044] In practical appl...

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Abstract

The invention provides a video multicast achieving method based on a session initiation protocol (SIP) monitoring system. The video multicast achieving method includes: when media streams between SIP monitoring client sides and IP cameras (IPCs) are transferred by a server and the first SIP monitoring client side is connected with one IPC through the server, the second SIP monitoring client side is assumed to monitor the IPC and transmit INVITE requests; the server preferably confirms authority of the second SIP monitoring client side, if the second SIP monitoring client side is authorized, media ports are distributed to the server directly through media services, and the server provides 2000K response; the second SIP monitoring client side responds to ACK, then RTP streams are built between the second SIP monitoring client side and the server, and the server is responsible for forwarding IPC audio / video streams to the first SIP monitoring client side and the second SIP monitoring client side. By means of the video multicast achieving method based on the SIP monitoring system, a plurality of users can look over one IPC at the same time, and the monitoring quality can be ensured.

Description

technical field [0001] The invention relates to the field of communication and information technology, in particular to a method for realizing video multicast based on a SIP monitoring system. Background technique [0002] At present, the SIP (Session Initiation Protocol) protocol has become a protocol standard for IP network communication due to its openness, flexibility, and strong scalability, especially in NGN and IMS networks. Not only that, but SIP has gradually replaced some other protocols and become the protocol standard of the monitoring system. We know that a video surveillance session is basically similar to an audio and video session. The former can be regarded as a subset of the latter. The main difference is that audio and video communication is a two-way audio and video stream, and video surveillance only has video from the camera to the monitoring end. stream (audio stream can be bidirectional). A typical SIP monitoring system and a SIP audio and video tele...

Claims

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Application Information

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IPC IPC(8): H04L29/06
Inventor 陈嗣文钟添华
Owner FUJIAN STAR NET COMM
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