Train operation monitoring device based on double 2-vote-2 safety computer structure and method for train operation monitoring device

Abstract

The invention discloses a train operation monitoring device based on a double 2-vote-2 safety computer structure. The train operation monitoring device comprises a host unit. The host unit comprises a primary unit and a secondary unit. The primary unit comprises a primary input plug-in group, a primary host plug-in and a primary output plug-in. The primary input plug-in group comprises at least one primary safety input plug-in based on a 2-out-of-2 structure. The secondary unit comprises a secondary input plug-in group, a secondary host plug-in and a secondary output plug-in. The secondary input plug-in group comprises at least one secondary safety input plug-in based on the 2-out-of-2 structure.

Description

technical field [0001] The invention mainly relates to the field of train operation monitoring and recording equipment, in particular to a train operation monitoring device based on a two-by-two-out-two safe computer architecture. Background technique [0002] The LKJ2000 train operation monitoring device was developed in 1999 and began to be used on the whole road in 2001. It has been applied to more than 20,000 locomotives and more than 500 EMUs on the whole road. Limited by the technical limitations of the 1990s, LKJ2000 cannot fully adapt to the development of the current transportation situation in terms of safety, reliability, and maintainability. [0003] The disadvantages of the existing LKJ2000 type train operation monitoring device are as follows: [0004] (1) Insufficient means of isolation and resection after LKJ host failure [0005] The LKJ main engine is a dual-machine hot standby redundant system. When the main control machine fails, the main components of ...

AI Technical Summary

Problems solved by technology

Due to the limitations of the isolation and removal methods of the LKJ main engine after a failure, it may happen that after a local failure occurs on the main control machine side, it cannot be switched to the hot standby side in real time, resulting in a failure that cannot be eliminated temporarily and affects the continuous operation of the train.

[0006] (2) LKJ human-computer interaction unit (screen display) failure

[0007] The screen display is the human-computer interaction part in the LKJ system, and it is not a redundant design. Once a failure occurs, the driver will not be able to obtain driving and control information and affect the operation

[0008] (3) Failure of the speed information collection link

When the power supply of the speed sensor is short-circuited or disconnected, it will cause the speed information failure of the monitoring device

[0010] (4) The update method of LKJ program and data needs to be improved

[0011] The LKJ monitoring and recording plug-in uses EPROM chips to store programs and line data. On the one hand, the storage capacity of EPROM chips is limited, and the chip capacity can no longer meet the application requirements; on the other hand, when the program and data are updated, the chip needs to be erased again. The number of erasures is limited, so it can be seen that the update methods of LKJ programs and data need to be improved

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