Time device precision and stability monitoring method
A stability and clock technology, applied in the direction of digital transmission system, electrical components, transmission system, etc., to achieve the effect of convenient and simple monitoring method, cost saving and unified management
Active Publication Date: 2011-08-17
JIANGSU FRONTIER ELECTRIC TECH +1
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Problems solved by technology
The current time synchronization method is only a simple time synchronization, the accuracy and stability of the clock output cannot be monitored, it is not convenient for unified management, and it is time-consuming and laborious
Method used
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Embodiment Construction
[0024] Build a clock device monitoring network. For clock devices that support the NTP function, they are directly connected to the NTP client background of the monitoring clock device. For those that do not support the NTP function, a time synchronization monitoring device is required for conversion and access. The time synchronization monitoring device has a common clock device interface, such as IRIG-B, serial port plus pulse mode, which can obtain the time of the clock device in real time, and has good real-time punctuality and processing capabilities. At the same time, it supports the NTP service function, and can be used as an NTP server, and the clock device that does not support the NTP function can be used as an NTP extension interface.
[0025] Setting up an NTP client in the dispatch center is mainly realized by monitoring software, which can monitor multiple clock devices at the same time and select the optimal reference time source in real time, and obtain the time...
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The invention relates to a precision and stability monitor method for a clock, comprising: a clock supporting NTP standard is directly set to be a NTP server mode, and the clock not supporting NTP standard acquiring time by a synchronous monitor device; a dispatching center sets a NTP client-side which is connected with each NTP server terminal by a NTP communication mode; when the NTP client-side inquires the time of the monitored clock, each NTP server terminal transmits time to the NTP client-side in real time by a NTP protocol; the NTP client-side is compared with a setting optimum reference time resource to obtain a time difference for evaluating precision and stability of the monitored clock equipment. The invention sets a time monitor network by a NTP standard, and the NTP client-side compares the monitor clock time with the optimum reference clock resource time to be judged whether consistent for evaluating precision and stability of each monitored clock equipment. The invention is convenient in use and uniform management, which saves the cost.
Description
technical field [0001] The invention is a method for simultaneously performing accuracy and stability monitoring and experimental testing on a plurality of clock devices, and can be used in occasions where clock devices need to be monitored in various fields. The invention belongs to the technical field of time synchronization monitoring. Background technique [0002] The time accuracy and stability evaluation of clock equipment is very important in many fields, and time synchronization is an important guarantee for the normal and safe operation of systems in various fields. For example, the synchronization of the clocks of each node in the power grid is increasingly important in today's large-scale power grids. When an accident occurs in the power grid involving multiple power plants and substations, it is necessary to integrate the protection actions and fault recording information of the entire network for accident analysis. analysis poses great difficulties. [0003]...
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IPC IPC(8): H04L12/26H04L7/00H04L29/06
Inventor 吴玉林李澄朱书扬黄伟王伏亮葛永高
Owner JIANGSU FRONTIER ELECTRIC TECH