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Clock taming method, device and high-speed camera applying the method

A clock taming and taming technology, applied in time division multiplexing systems, multiplexing communications, components of color TVs, etc., can solve problems such as inability to handle frequency offsets

Active Publication Date: 2021-09-10
HEFEI JUNDA HI TECH INFORMATION TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

This scheme cannot handle the frequency drift caused by the system running time and environmental changes

Method used

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  • Clock taming method, device and high-speed camera applying the method
  • Clock taming method, device and high-speed camera applying the method

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Embodiment Construction

[0035] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the accompanying drawings, and the described embodiments should not be considered as limiting the present invention, and those of ordinary skill in the art do not make any All other embodiments obtained under the premise of creative labor belong to the protection scope of the present invention.

[0036] The present invention provides a clock taming method based on preset time precision requirements, which can obtain a tame clock meeting various time precision requirements. The method includes the following steps:

[0037] (a1) Obtain the first clock pulse signal of the standard clock system and the second clock pulse signal of the clock system to be tamed, wherein, the time accuracy level A1 of the standard clock system, the magnitude A3 of the preset time precision requirement, and the clock...

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Abstract

The invention discloses a clock taming method, a device and a high-speed camera applying the method. The method includes acquiring a first clock pulse signal of a standard clock system and a second clock pulse signal of a clock system to be tamed, and acquiring a preset time period. Calculate the error between the theoretical value and the actual value of the number of second pulse signals, and evenly compensate the count within the next preset time period; perform timing based on the second pulse signal corrected by the pulse count, and obtain the first time accuracy level of A3. Three clock pulse signals; the time of the standard clock system is combined with the third clock pulse signal to obtain the standard time of A3 precision level. The invention realizes the taming of a clock system to be tamed with high time precision and low accuracy based on a clock system with low time precision and high accuracy into a clock system with high time precision and high accuracy, and can meet different preset taming time precision requirements.

Description

technical field [0001] The invention relates to the technical field of time synchronization, in particular to a clock taming method and device and a high-speed camera applying the method. Background technique [0002] With the rapid development of network technology, people have higher and higher requirements for time accuracy. Among the methods for realizing time synchronization in the prior art, the first method is to realize time synchronization in a distributed system through an NTP server or a PTP protocol. In the protocol-based time synchronization scheme, the delay time between each node and the server in the distributed system is mostly measured through the interaction of protocol messages, and then the difference between the master clock and the slave clock is corrected according to the measured value, and according to Correction values ​​and statistical counts allow precise synchronization of master and slave clocks. The clock synchronization precision of NTP prot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J3/06H04N5/073
CPCH04J3/0638H04N5/0733
Inventor 修亮卢小银张利雷秀军严德斌金一
Owner HEFEI JUNDA HI TECH INFORMATION TECH
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