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Time synchronization method and system among wireless devices

A time synchronization system and wireless device technology, applied in wireless communication, synchronization devices, electrical components, etc., can solve the problem of multiple wireless devices playing out of sync

Inactive Publication Date: 2016-04-27
TCL TECH ELECTRONICS (HUIZHOU) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a time synchronization method and system between wireless devices, the main purpose of which is to solve the problem of out-of-sync playback of multiple wireless devices in the prior art

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  • Time synchronization method and system among wireless devices
  • Time synchronization method and system among wireless devices
  • Time synchronization method and system among wireless devices

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Embodiment Construction

[0044] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0045] The invention provides a time synchronization method between wireless devices.

[0046] refer to figure 1 Shown is a flow chart of the first embodiment of the time synchronization method between wireless devices of the present invention.

[0047] In the first embodiment, the time synchronization method between the wireless devices includes:

[0048] Step S10, determining a wireless device among the wireless devices in the wireless local area network as a time server, and other wireless devices in the wireless local area network as time clients;

[0049] Step S20, the time client sends a first data packet containing the current first time point to the time server, so that the time server can send the time server to the time client after receiving the first data packet The second data packet, wherein the second ...

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Abstract

The invention discloses a time synchronization method among wireless devices. The procedures of the method comprise: determining a wireless device as a time server in a wireless local area network, taking other wireless devices in the wireless local area network as time customers; sending first data packets comprising current first time points to the time server by the time customers, after the time server receives the first data packets, sending second data packets to the time customers by the time server, wherein the second data packets comprise first time points, second time points at which the time server receives the first data packets and third time points at which the time server sends the second data packets; when the time customers receive the second data packets, obtaining fourth time points at which the second data packets are received; calculating the time difference between the time customers and the time server by the time customers according to the time data. The invention also discloses a time synchronization system among wireless devices. According to the invention, the problem that the multiple wireless devices play non-synchronously is solved.

Description

technical field [0001] The present invention relates to the technical field of wireless devices, in particular to a time synchronization method and system between wireless devices. Background technique [0002] As wireless technologies become more and more abundant, it becomes more and more common to wirelessly connect multiple wireless devices to play the same program synchronously. However, due to the inconsistency of the system time of multiple wireless devices, the playback of multiple devices will be out of sync. For example, existing wireless speakers, with the application of wireless technologies such as Bluetooth and WIFI on speakers, wireless audio and video devices such as wireless speakers can be connected to each other, and the same music can be played synchronously on different wireless speakers. However, since the human ear is more sensitive to sound signals, when there is an error of more than 50ms in the playback time of the same frame of audio signals betwe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W56/00
CPCH04W56/0015
Inventor 张洁唐扬伟
Owner TCL TECH ELECTRONICS (HUIZHOU) CO LTD
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