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Device discovery method, master device, slave device and corresponding system

A master device and device technology, applied in the field of network communication

Active Publication Date: 2018-06-15
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process has a limitation, that is, the master device and the slave device must communicate in the same network segment. If you want to search for devices in other nearby network segments, you cannot use existing technologies.

Method used

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  • Device discovery method, master device, slave device and corresponding system
  • Device discovery method, master device, slave device and corresponding system
  • Device discovery method, master device, slave device and corresponding system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] figure 1 It is a schematic flowchart of a device discovery method in a digital living network alliance system provided by Embodiment 1 of the present invention. The method can be executed by a master device in the digital living network alliance system, specifically through a device in the digital living network alliance system. Software and / or hardware implementation configured in the master device. Such as figure 1 As shown, the method includes:

[0038] Step 101, based on the network card working in the sniffer mode, the master device monitors and receives the online broadcast message or downlink broadcast message sent by the slave device in all network segments to the UPnP protocol broadcast address based on the network card working in the default mode. broadcast messages.

[0039] The master device in this embodiment is a digital media controller (DMC), which may also be called a control point device. The slave devices include a Digital Media Server (DMS) and a...

Embodiment 2

[0052] figure 2 It is a schematic flow diagram of a device discovery method in the digital living network alliance system provided by Embodiment 2 of the present invention. The method can be executed by the main device in the digital living network alliance system, specifically through the Software and / or hardware implementation configured in the master device. Such as figure 2 As shown, the method includes:

[0053] Step 201, the master device sends a search broadcast message to the UPnP protocol broadcast address based on the network card working in the default mode, so that the online slave devices in all network segments monitor and receive the information based on the network card working in the sniffer mode. Search for broadcast messages, and send online broadcast messages to the broadcast address of the UPnP protocol based on the network card working in the default mode.

[0054] The master device in this embodiment is a digital media controller (DMC), which may al...

Embodiment 3

[0063] image 3 It is a schematic flowchart of a device discovery method in the digital living network alliance system provided by Embodiment 3 of the present invention. The method can be executed by a slave device in the digital living network alliance system, specifically through the Software and / or hardware implementation configured from a device. Such as image 3 As shown, the method includes:

[0064] Step 301 , the online slave devices in all network segments listen to and receive the search broadcast message sent by the master device to the UPnP protocol broadcast address based on the network card working in the default mode based on the network card working in the sniffer mode.

[0065] The master device in this embodiment is a digital media controller (DMC), which may also be called a control point device. The slave devices include a Digital Media Server (DMS) and a Digital Media Renderer (DMR).

[0066] In this embodiment, the master device and the slave device c...

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PUM

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Abstract

The embodiment of the invention discloses a device discovery method, a master device, a slave device and a corresponding system. The method comprises: based on the network card working in the sniffer mode, the master device monitors and receives the online broadcast message sent by the slave device in all network segments to the universal plug and play UPnP protocol broadcast address based on the network card working in the default mode or The offline broadcast message; the master device determines to discover the slave device according to the online broadcast message or the offline broadcast message. In the embodiment of the present invention, by adopting the above technical solution, the master device in the digital living network alliance system can listen to and receive online broadcast messages or offline broadcast messages sent by slave devices in other network segments based on the network card working in the sniffer mode , so that the master device can realize the cross-network segment discovery process. In addition, when users use the master device, they can also control the slave devices in different network segments, which increases the control range and effectively improves user experience.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of network communication, and in particular to a device discovery method, a master device, a slave device and a corresponding system. Background technique [0002] In recent years, Digital Living Network Alliance (DLNA) technology has been extensively developed, and more and more media devices, audio-visual terminals or playback platforms all support DLNA technology. This technology allows the device to discover other devices with DLNA function when connected to the network, and view and share the media resources in the server to a certain player for playback. Types of DLNA devices mainly include Digital Media Renderer (Digital Media Renderer, DMR), Digital Media Server (Digital Media Server, DMS) and Digital Media Controller (Digital Media Controller, DMC). [0003] DMC is the control point device in the audio / video (Audio / Video, A / V) architecture of DLNA. It can be called the mas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26H04L29/08H04L12/18H04L12/28
Inventor 任超
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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