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a data transmission system

A technology of data transmission system and business data, which is applied in the field of data transmission system, can solve problems such as being unable to carry business data, unable to transmit business data through session channels, and unable to transmit business data correctly, so as to meet the effect of data transmission requirements

Active Publication Date: 2022-07-01
HANGZHOU HIKVISION SYST TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the session channel uses the SIP protocol to transmit control data. If the session channel is used to transmit business data, the SIP protocol must also be used to transmit the service data. Limited by the size of the SIP message body of the SIP protocol, instant messages can only be transmitted through the session channel. and short messages, etc., once the business data is images or long messages, etc., the SIP message body of the SIP protocol cannot carry these business data, resulting in the inability to transmit business data correctly
To sum up, after the data transmission system expands various types of business data, it may not be possible to transmit various types of business data through the session channel, resulting in the inability to meet the data transmission requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] Embodiment 1: The source device queries the capability set supported by the destination device through the session channel, and the capability set supported by the destination device includes the protocol type of the service data supported by the destination device. And, the SIP server queries the capability set supported by the source device through the session channel, and the capability set supported by the source device includes the protocol type of the service data supported by the source device. And, the SIP server queries the capability set supported by the destination device through the session channel, and the capability set supported by the destination device includes the protocol type of the service data supported by the destination device. And, the SIP server queries the capability set supported by the message server through the session channel, and the capability set supported by the message server includes the protocol type of the service data supported by ...

Embodiment 2

[0073] Embodiment 2: A message channel is established between the source device and the message server (denoted the message channel as the first message channel), and the source device sends an MSRP message (for carrying service data) to the message server through the first message channel. A message channel is established between the destination device and the message server (denoted the message channel as a second message channel), and the message server sends an MSRP message to the destination device through the second message channel. For example, a first message channel and a second message channel may be established through the following steps, and an MSRP message including service data may be transmitted through the first message channel and the second message channel.

[0074] S11. The source device sends a first negotiation request to the SIP server, where the first negotiation request is a negotiation request for establishing a message channel, and the SIP server rece...

Embodiment 3

[0121] Embodiment 3: A message channel is established between the source device and the message server (denoting the message channel as the first message channel), and the source device sends an MSRP message (for carrying service data) to the message server through the first message channel. No message channel is established between the destination device and the message server, and the message server sends service data to the destination device through a non-message channel. For example, a first message channel is established through the following steps, and an MSRP message is transmitted through the first message channel, where the MSRP message includes service data.

[0122] S31. The source device sends a first negotiation request to the SIP server, where the first negotiation request is a negotiation request for establishing a message channel, and the SIP server receives the first negotiation request.

[0123] S32. The SIP server sends a second negotiation request to the m...

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PUM

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Abstract

The present application provides a data transmission system, including a source device, a destination device, a SIP server, and a message server; the SIP server receives a first negotiation request for establishing a message channel sent by the source device, and sends a message server based on the first negotiation request to the message server. based on the second negotiation request for establishing the message channel; the message server establishes the first message channel between the message server and the source device based on the second negotiation request, and sends the first negotiation response for establishing the message channel to the SIP server; the SIP server sends the source device The device sends a second negotiation response for establishing a message channel, and the source device establishes a first message channel between the source device and the message server based on the second negotiation response. The message server receives the service data sent by the source device through the first message channel, and sends the service data to the destination device. Through the technical solution of the present application, the message channel is used to transmit service data, and the service data is separated from the session channel to meet data transmission requirements.

Description

technical field [0001] The present application relates to the technical field of data processing, and in particular, to a data transmission system. Background technique [0002] The data transmission system consists of a source device, a destination device, a SIP (Session Initiation Protocol, Session Initiation Protocol) server, a media server, etc. In order to realize the transmission and control of video data, two transmission channels need to be established, namely a session channel and a media stream channel. . A session channel can be established between the source device, the SIP server and the destination device. The source device and the destination device transmit control data through the session channel. For example, the source device sends the control data to the SIP server through the session channel, and the SIP server sends the control data through the session channel. The data is sent to the destination device. A media stream channel can be established betwe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L65/1104H04L65/1066H04L65/80
CPCH04L65/1066H04L65/80H04L65/1104
Inventor 李泽夫
Owner HANGZHOU HIKVISION SYST TECH