Time synchronizing device with safety isolation function

Abstract

The invention provides a time synchronizing device with a safe isolation function, which comprises an NTP (Network Time Protocol) client module (1), a window filter failure compensation module (2), a high reconstruction clock module (5), a voice transformation module (6), an in / out log module (7), a voice player (8), a panel display module (9), a press key (10), two NTP server modules (13, 14), a TOD time and date follower (15) and a driving module (18). The time synchronizing device provided by the invention can safely isolate a service to an Intranet, which is provided by an external network, and provides a safe, convenient and high-precision time synchronizing method for servers; and the time synchronizing device can synchronize with NTP website timing, and also can synchronize with a TOD series signal, and outputs series TOD and net opening signals to allow the plurality of device of a system formed by multiple servers to achieve time synchronizing.

Description

technical field [0001] The invention belongs to the field of time synchronization, and in particular relates to a time synchronization device for safety isolation. Background technique [0002] In a network system composed of multiple devices, the time synchronization of each device is sometimes necessary, and most devices are composed of computer servers, and their time synchronization interfaces mainly include serial port TOD and network port NTP signals. However, most servers seldom use serial ports, and directly use the external network for public NTP network time calibration. It is difficult to avoid external network attack damage to a server or the entire internal network. Some products that focus on network isolation do not use and process the NTP of the external network strictly. The accuracy of the time signal obtained is poor, and the accuracy of the forwarded NTP is not controlled. Errors will always occur in the time data of a single electricity, especially NTP ...

AI Technical Summary

Problems solved by technology

However, most servers seldom use serial ports, and directly use the external network for public NTP network time calibration. It is difficult to avoid external network attack damage to a server or the entire internal network.

Some products that focus on network isolation do not use and process the NTP of the external network strictly. The accuracy of the time signal obtained is poor, and the accuracy of the forwarded NTP is not controlled. Errors will always occur in the time data of a single electricity, especially NTP is synchronized according to the access interval. If the synchronization fails due to network reasons or even shutdown when the scheduled interval arrives, you have to wait for the next interval to resynchronize without giving a front desk prompt. Internal and external There is no traceable record of success or failure in the status of online school, and the reliability of time synchronization is poor, which reduces the coordination ability of the network system

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