Wireless multi-room music system synchronization mechanism based on UPnP protocol
A technology of music system and synchronization mechanism, applied in the directions of amplification system, transmission system, electrical components, etc., can solve the problem of asynchronous playback of different speakers, and achieve the effect of simple implementation, perfect playback function, and obvious synchronization effect.
Inactive Publication Date: 2014-02-12
SYSU HUADU IND SCI & TECH INST
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Problems solved by technology
[0003] For the above-mentioned technical problems, the implementation of the present invention provides a synchronization mechanism based on the wireless multi-room music system under the DLNA / UPnP protocol, so as to solve the problem of different speakers playing the same music under the multi-room music system. synchronization problem
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[0019] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0020] The wireless multi-room music music system based on the UPnP protocol of the present invention mainly includes three modules: a control point (CP), a digital media renderer (DMR) and a digital media server (DMS). The control points are generally smart terminals such as mobile phones and tablet computers. Digital Media Renderer (DMR) refers to a development board with wireless wifi function. Here we choose the Ingenic development board with mips processor. A digital media server (DMS) can be either a home computer or our smart terminal. The connection diagram of each module can refer to figure 1 shown.
[0021] The control point (mobile terminal) on the wireless audio equipment is the most profound part of the user experience in the wireless multi-room mu...
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The invention provides a DLNA / UPnP protocol-oriented wireless multi-room music synchronization method. The synchronization method is characterized in that grouping management is firstly performed on wireless loudspeaker boxes needing synchronization playing, and all loudspeaker box devices are joined into the same group and connected into a same wireless local area network so that all the loudspeaker box devices can be controlled to play or pause through a mobile terminal; after the loudspeaker box devices are joined into the group, one device of a wireless audio system is selected as a main device, and other devices are set as auxiliary devices; after the main device is selected, the mobile terminal (a control point) gives a play command, all the devices start to play a same piece of music, at the moment the main device needs to send out own play information in a broadcast mode at set intervals, the main device serves as a broadcast sending end, the auxiliary devices serve as broadcast receiving ends, after receiving the process information sent out by the main device, the auxiliary devices compare the process of the main device with the self processes, if the absolute value of play process difference is larger than a certain set range, the devices are adjusted correspondingly, and otherwise the devices continue to play without any operation.
Description
technical field [0001] The present invention relates to an audio playback system, and more precisely relates to the realization of multiple speakers synchronously playing the same piece of music in a wireless multi-room music playback system based on the DLNA / UPnP protocol. Background technique [0002] In recent years, with the rise of mobile Internet technology, people have deeply felt the convenience brought by mobile Internet technology. Smart mobile terminals represented by smartphones and tablet computers are setting off a fingertip revolution sweeping the world, and the development of mobile Internet is unstoppable. At the same time, traditional entertainment methods are also changing step by step, mainly due to the improvement of mobile bandwidth transmission rate. Taking music appreciation as an example, there are currently many wireless speakers that can be connected to the wireless network in the home. If the speaker device meets the DLNA protocol, you can use th...
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IPC IPC(8): H04R27/00H04L29/06
Inventor 陆许明徐永键廖建裕谭洪舟
Owner SYSU HUADU IND SCI & TECH INST