A High Precision Synchronous Timing System

Abstract

The invention relates to the technical field of synchronous timing, and discloses a high-precision synchronous timing system, comprising a synchronous timing module, a synchronous time receiving module, an upper computer and a lower computer; the synchronous timing module is connected with the upper computer; the lower computer is respectively connected with the synchronous time receiving module Connection; synchronous timing module, used to complete the data communication with the host computer, and encode the GPS time information and GPS second pulse signal respectively, and then convert them into optical signals through photoelectric conversion processing and send them to the synchronous time receiving module through optical fiber. ; Synchronous time receiving module, used for photoelectric conversion of the received optical signal, and then output synchronous timing data to the lower computer after decoding and arithmetic processing. The invention not only can realize remote timing, but also has high synchronous timing accuracy. The invention can also realize the synchronous timing of multiple instrument channels by using multiple groups of synchronous timing modules and time receiving modules, and the timing accuracy of each channel is independent and does not affect each other.

Description

technical field [0001] The invention relates to the technical field of timing, in particular to a high-precision synchronous timing system. Background technique [0002] Most of the existing high-precision timing technologies are dedicated instruments, that is, the instruments are only used to complete the timing work, such as GPS timing modules, Beidou timing modules, and so on. The timing information provided by the special instrument includes both time information, second pulse signal, or only time signal. This type of timing module is generally used for local instruments to perform timing operations, which can achieve ns-level precision timing services, but cannot perform remote timing services. Special instruments generally have a timing distance of about 100 meters. When the distance is too far, auxiliary equipment such as timing signal forwarding equipment needs to be added to complete the timing. Other non-high-precision timing technologies use equipment such as ne...

AI Technical Summary

Problems solved by technology

Other non-high-precision time service technologies use network time service servers and other equipment and certain software algorithms to complete long-distance service, but the timing accuracy of this technology using network time service servers and other equipment for time service is poor. The timing accuracy is only 50ms

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