Time synchronization method and system based on satellite synchronous clock

A technology of time synchronization and clock synchronization, which is applied in time division multiplexing systems, radio-controlled timers, instruments, etc., to achieve the effect of improving the accuracy of time synchronization

Active Publication Date: 2022-06-10
烟台恒时智能科技有限公司
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Problems solved by technology

[0004] Regarding the above technology, the inventor believes that there are the following defects: the time synchronization device of the power plant adopts the configuration mode set separately for each control system, and there is a time gap between each system The defect of low synchronization accuracy

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  • Time synchronization method and system based on satellite synchronous clock
  • Time synchronization method and system based on satellite synchronous clock
  • Time synchronization method and system based on satellite synchronous clock

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Embodiment Construction

[0056] Among them, the sequential timing accuracy is the measurement accuracy of the previous measurement time node and the measurement accuracy of the next measurement time node, and then three accuracy measurement values ​​in the time period of the time point with lower accuracy are obtained.

[0057] S303. Generate an average value of timing accuracy.

[0058] Specifically, the synchronization system generates an average value of the timing accuracy according to the actual satellite timing accuracy and the associated timing accuracy. Wherein, the average value of timing accuracy is the average value of the above three accuracy measurement values. For example, the current satellite timing accuracy is 40ns, the satellite timing accuracy at the previous moment is 30ns, and the satellite timing accuracy at the previous moment is 30ns, then the average timing accuracy at this time is (40+30+30) / 3ns.

[0059] S304. Execute the step of generating and executing the timing precisio...

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Abstract

The invention relates to a time synchronization method and system based on a satellite synchronous clock, and relates to the technical field of satellite synchronous clocks, and the method comprises the steps: receiving time synchronization information which comprises a system identification parameter and a satellite time source parameter corresponding to the system identification parameter; acquiring a satellite system time zone corresponding to the satellite time source parameter according to the satellite time source parameter; according to the satellite system time zone, a time output instruction is generated and executed, and the time output instruction is used for pushing the satellite system time zone according to the system identification parameters. The method and the device have the effect of improving the time synchronization precision among the systems.

Description

technical field [0001] The present application relates to the technical field of satellite synchronous clocks, in particular to a time synchronization method and system based on satellite synchronous clocks. Background technique [0002] With the continuous improvement of the automation level of power plants, the requirements for time synchronization of computer control, protection and automatic devices are also getting higher and higher. [0003] Related technologies can refer to the Chinese patent with publication number CN111948932A, which discloses a nuclear power plant clock synchronization system, including: a first master clock, a first communication module located in the first nuclear island, and a second communication module located in the second nuclear island. module, the third communication module located in the first conventional island, and the fourth communication module located in the second conventional island; the first master clock communicates with the fi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/06G04R20/02
CPCH04J3/0638H04J3/0644G04R20/02
Inventor 姜学明张凡来王纲闫绍飞王玉晓
Owner 烟台恒时智能科技有限公司
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