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Time synchronization method for periodic pulse per second output aligned with specified moment

A time synchronization, second pulse technology, applied in the field of time unification

Active Publication Date: 2022-01-07
成都金诺信高科技有限公司
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Problems solved by technology

[0002] Common synchronization methods in the field of time unification technology include external 1PPS (1 second period pulse) and local 1PPS synchronization, external nPPS (any period second pulse) synchronization with local nPPS, nPPS and 1PPS alignment, etc. However, these are existing fixed periods Time synchronization problem with pulse-of-seconds

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  • Time synchronization method for periodic pulse per second output aligned with specified moment
  • Time synchronization method for periodic pulse per second output aligned with specified moment
  • Time synchronization method for periodic pulse per second output aligned with specified moment

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Embodiment Construction

[0040] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0041] refer to Figure 1-Figure 2 , this embodiment provides a time synchronization method for the cycle-second pulse output aligned with the specified moment:

[0042] Such as figure 1 As shown, a method for time synchronization of cycle-second pulse output aligned with a specified moment, including:

[0043] S1. Calculate the period of the synchronization enable signal according to the period of the period second pulse.

[0044] Generally, the cycle of the cycle-second pulse is a positive rational number divisible by 86400, ...

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Abstract

The invention discloses a time synchronization method for periodic pulse per second output aligned with a specified moment. The method comprises the following steps: calculating the period of a synchronization enable signal according to the period of the periodic pulse per second; acquiring time information of the current moment; calculating a first synchronization moment according to time information of a specified moment and a current moment and a period of the synchronization enable signal, wherein the specified moment is an integer second moment; generating a synchronization enable signal according to the first synchronization moment; and generating the periodic pulse per second according to the synchronization enable signal. The invention provides a method for aligning with the specified moment, and the synchronous enable signal is generated after the alignment moment is calculated, so that the generated periodic pulse per second can jump at the specified moment to generate a rising edge, and the period is kept unchanged.

Description

technical field [0001] The invention relates to the technical field of time unification, and relates to a time synchronization method for cycle-second pulse output aligned with a designated moment. Background technique [0002] Common synchronization methods in the field of time unification technology include external 1PPS (1 second period pulse) and local 1PPS synchronization, external nPPS (any period second pulse) synchronization with local nPPS, nPPS and 1PPS alignment, etc. However, these are existing fixed periods Time synchronization issue with pulse-of-seconds. In reality, we need to perform time synchronization in the absence of an external second pulse and only provide time information of the current hour, minute, and second. For example, the local nPPS is aligned with the specified time (non-time start time, Beijing time zero time), that is, the nPPS signal must jump at the specified time to appear a rising edge and keep the period unchanged. In order to overcom...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/12
CPCG06F1/12
Inventor 胡秋林邓意峰曾迎春朱敏简和兵温学斌严波李文龙杨彩芳
Owner 成都金诺信高科技有限公司
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