Time compensation device and method for master equipment, time compensation device and method for slave equipment, and time compensation system

Abstract

Disclosed are a time compensation apparatus and method for a master device, a time compensation apparatus and method for a slave device, and a time compensation system. The time compensation apparatus for the master device comprises: a compensation loop, a time compensation module, and a time generation module. The time compensation module sends a compensation signal to the compensation loop by using a compensation signal output end, obtains a compensation signal from a compensation signal input end, records a needed time from sending of the compensation signal to obtaining of the compensation signal, and obtains a compensation time according to the following equation: t=T / n. The time generation module uses the compensation time as an advance to perform advance setting on a time corresponding to a time signal, so as to generate a new time signal, and sends the new time signal to a first signal input end of a master device component by using a time signal output end. By means of the foregoing disclosed content, the present invention can eliminate a delay generated by a time signal in a transmission path under the precondition of no manual test, and can adapt to different environments.

Description

[0001] technology network [0002] The invention relates to the field of electronic technology, in particular to a time compensation device and method for a master device, a time compensation device and method for a slave device, and a time compensation system. Background technique [0003] Accurate and reliable time is widely used in satellite, communication, aerospace and other fields. For some applications, an error of one ten-thousandth of a second can also cause serious impact. [0004] The application of time synchronization is as follows: the time source is the global satellite positioning system (GPS). After obtaining the time information as a standard clock from the time source, the time information needs to be sent to various devices that need time synchronization through the inter-office / intra-office time distribution link superior. Currently commonly used time information formats mainly include: time code, Network Time Protocol (NTP, NetworkTimeProtocol), Precisio...

AI Technical Summary

Problems solved by technology

[0008] Judging from this architecture of the prior art, there are the following problems: each application scenario needs to be compensated through manual actual testing, and manual testing is prone to errors, and the environmental adaptability is poor, and delays caused by temperature changes cannot be avoided. In addition, the differences between equipment components cannot be overcome, so automatic dynamic compensation cannot be realized

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