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Time synchronization method and device, computer equipment and storage medium

A time synchronization and computer technology, applied in time division multiplexing system, electrical components, multiplexing communication, etc., can solve the problem of misalignment of equipment on the same screen, and achieve the effect of time synchronization

Pending Publication Date: 2021-10-15
SHENZHEN HUIDU TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under normal circumstances, the time adjustment operation is performed after the slave device receives the time packet. However, due to various factors such as device packet loss, network delay and adjustment, it is easy to cause obvious misalignment of the same screen of the slave device.

Method used

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  • Time synchronization method and device, computer equipment and storage medium
  • Time synchronization method and device, computer equipment and storage medium
  • Time synchronization method and device, computer equipment and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] figure 1 It is a flow chart of a time synchronization method provided by Embodiment 1 of the present invention. This embodiment is applicable to the situation of maintaining time synchronization of RF slave devices. The method can be executed by a time synchronization device, which can be implemented by software and / or Hardware to achieve, and generally integrated in the RF slave device.

[0024] like figure 1 As shown, the technical solution of the embodiment of the present invention specifically includes the following steps:

[0025] S110. Receive a time packet regularly broadcast by the master device.

[0026] The time package includes a target time package sending time, wherein the target time package is sent before the current time package.

[0027] Among the RF devices on the same channel, only one RF master device is used to broadcast time packets, and the RF master device needs to keep sending time packets regularly.

[0028] In the embodiment of the present...

Embodiment 2

[0039] Figure 2a It is a flow chart of a time synchronization method provided by Embodiment 2 of the present invention. On the basis of the above-mentioned embodiments, the embodiment of the present invention further specifies the steps of updating the slave device time, and adds the judging current time package Whether the receiving time satisfies the time range condition and the time synchronization interval condition, and the processing process when the time range condition or the time synchronization interval condition is not satisfied.

[0040] Correspondingly, such as Figure 2a As shown, the technical solution of the embodiment of the present invention specifically includes the following steps:

[0041] S210. Receive a time packet regularly broadcast by the master device.

[0042] Optionally, the RF master device may send a time packet every 1000 ms, but this embodiment does not limit it.

[0043] S220. Obtain the receiving time of the current time packet and the re...

Embodiment 3

[0077] image 3 It is a schematic structural diagram of a time synchronization device provided in Embodiment 3 of the present invention. The device is deployed in an RF slave device and used in conjunction with an RF master device. The device includes: a time packet receiving module 310 , a receiving time determining module 320 and a time updating module 330 . in:

[0078] The time packet receiving module 310 is used to receive the time packet regularly broadcast by the master device; the time packet includes the sending time of the current time packet and the sending time of the target time packet, wherein the target time packet is sent before the current time packet ;

[0079] The receiving time determination module 320 is used to obtain the receiving time of the current time packet and the receiving time of the target time packet;

[0080] The time update module 330 is configured to update the time of the slave device according to the sending time of the current time pac...

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Abstract

The invention discloses a time synchronization method and device, computer equipment and a storage medium. The method comprises the following steps: receiving a time packet regularly broadcasted by master equipment, wherein the time packet comprises current time packet sending time and target time packet sending time, and the target time packet is sent before the current time packet; obtaining the current time packet receiving time and the target time packet receiving time; and updating the slave device time according to the current time packet sending time, the target time packet sending time, the current time packet receiving time and the target time packet receiving time. By using the technical scheme of the invention, the time synchronization between the RF slave devices can be realized.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of wireless communication, and in particular, to a time synchronization method, device, computer equipment, and storage medium. Background technique [0002] RF (Radio Frequency, radio frequency) devices are divided into master devices and slave devices, and multiple slave devices need to maintain time synchronization, so as to realize the same screen. [0003] Since two-way communication cannot be performed between RF devices, the existing way to realize time synchronization between RF devices is that the master device broadcasts its own time packet, and the slave device performs time correction according to the received time packet broadcast by the master device. Under normal circumstances, the slave device performs the time correction operation after receiving the time packet. However, due to various factors such as device packet loss, network delay and adjustment, it is easy to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/06
CPCH04J3/0638
Inventor 张家辉谢志君
Owner SHENZHEN HUIDU TECH