Dual computer hot-standby switcher and dual computer hot-standby switching method

Abstract

The invention relates to a dual computer hot-standby switcher comprising a switching signal processing module, an HV synchronous drive module, a display signal switching module and an operation unit switching module, wherein the switching signal processing module is used for realizing master control: controlling the display signal switching module to connect a display and a switched host, controlling the HV synchronous drive module to drive a switched display signal to be synchronous with the output phase of the switched host, and controlling the operating unit switching module to enable the switched host to be connected with an operating device, thereby achieving the goal of dual computer switching. The dual computer hot-standby switching method ensures that when one computer on which anSTC attendant program is running goes worng, another computer can continue to carry out seamless running in time, thereby greatly improving the running stability of the STC attendant program so as toensure the traveling safety of trains.

Description

technical field [0001] The invention relates to a dual-machine hot standby switcher and a dual-machine hot standby switching method in the field of train safety control and recording systems. Background technique [0002] At present, the safety control and recording system for receiving and dispatching trains (i.e. STC system) is a system widely used in the signal building of railway stations to assist train receiving and dispatching personnel to handle the process of receiving and dispatching trains and ensure driving safety. The STC system operates stably It is directly related to the normal operation of receiving and dispatching trains at the station and the safe operation of the trains. Since the STC system is a computer-based system, due to the inherent characteristics of the computer, it is inevitable that there will be network or machine failures, which will cause the system to fail to operate normally and seriously threaten driving safety. Therefore, it is necessary ...

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Problems solved by technology

[0002] At present, the safety control and recording system for receiving and dispatching trains (i.e. STC system) is a system widely used in the signal building of railway stations to assist train receiving and dispatching personnel to handle the process of receiving and dispatching trains and ensure driving safety. The STC system operates stably It is directly related to the normal operation of receiving and dispatching trains at the station and the safe operation of the trains. Since the STC system is a computer-based system, due to the inherent characteristics of the computer, it is inevitable that there will be network or machine failures, which will cause the system to fail to operate normally and seriously threaten driving safety. Therefore, it is necessary to design a dual-computer hot standby switch and a dual-computer hot standby switching method to improve its stability, reliability

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