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Time synchronous device and synchronous method of digital household network

A digital home network and time synchronization device technology, applied in the direction of synchronization devices, data exchange networks, digital transmission systems, etc., can solve problems such as adverse effects of home appliance operation, and achieve the effect of increasing robustness and accurate time stamps

Inactive Publication Date: 2006-06-28
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At the same time, in a large number of digital home appliances, if a logic fault occurs in the clock of a certain home appliance, it will definitely have a negative impact on the operation of the home appliance.

Method used

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  • Time synchronous device and synchronous method of digital household network
  • Time synchronous device and synchronous method of digital household network
  • Time synchronous device and synchronous method of digital household network

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Embodiment Construction

[0058] The present invention will be further described below in conjunction with the accompanying drawings.

[0059] The time synchronization device of the present invention is as attached figure 2 As shown, it includes time server A and time server B. The time server A and time server B are respectively connected to standard clocks and digital home appliances. The time stamp printing device of the present invention is respectively set in time servers A, B and digital home appliances. Since it is mainly a logical concept, the time stamp printing is realized through software design, so it is not marked in the figure.

[0060] The schematic diagram of the embodiment of the present invention is as attached Figure 4 As shown, there are digital home appliances such as digital air conditioners, digital TVs, digital water heaters, and digital lights in digital homes. These digital home appliances are connected to time server A and time server B through a home gateway, and time ser...

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Abstract

This invention provides a device and a method for time synchronization of a digital household network, in which, the device includes at least two sets of time servers and timestamp devices set in the servers and digital household appliances, said synchronization method includes that the digital appliance sends a synchronous request to the two time servers at the same time and gets a time difference between the appliance and the two servers, if the difference is not great, then the synchronization is successful, if it is greater than the tolerant sphere, then it is considered the network state is not right and a request for synchronization is sent again.

Description

technical field [0001] The invention belongs to the technical field of time synchronization of wireless communication, in particular to a time synchronization technology applied to a digital home network. technical background [0002] With the development of 3C fusion technology, the digital home has attracted more and more attention from the industry, and it will gradually form an industry in the future. The digital home will have high-performance computers, digital TVs, digital refrigerators, digital air conditioners, digital cameras, mobile communications Terminals, digital home security equipment, etc. A wide variety of digital home appliances will be included. [0003] With the maturity of digital home products, the proportion of digital home appliances in the market is gradually increasing, and we can already foresee the development of digital home in the future. In the future, not only the number of digital home appliances will increase, but also the types will beco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L7/00
Inventor 罗笑南凌若天
Owner SUN YAT SEN UNIV
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