WO2024031864A1

WO2024031864A1 - Automatic restoration method and system for vxworks system startup failure, storage medium, and device

Info

Publication number: WO2024031864A1
Application number: PCT/CN2022/132732
Authority: WO
Inventors: 周浩尚
Original assignee: 中车大连电力牵引研发中心有限公司
Priority date: 2022-08-09
Filing date: 2022-11-18
Publication date: 2024-02-15
Also published as: CN115437818A

Abstract

Disclosed in the present invention are an automatic restoration method and system for a VxWorks system startup failure, a storage medium, and a device. The method comprises: configuring, in a device carrying a VxWorks operating system, a bootrom file used for starting up and loading a VxWorks operating system mirror image file; formatting a device hard disk by using a DOS system; configuring, in a DOS system, a config.sys file used for setting, selecting and loading an application menu, entering the DOS system, firstly loading the config.sys file, setting, selecting and loading the application menu, and entering an autoexec.bat file processing flow after a configuration block name is selected; associating the config.sys file with the autoexec.bat file by means of a goto%config% command; by utilizing a file deletion and file copying command of the DOS system, deleting a faulty bootrom file, mirror image file, startup configuration file and autoexec.bat file; and copying the backed-up bootrom file, mirror image file, startup configuration file and autoexec.bat file into an original directory.

Description

Automatic repair method, system, storage media and equipment for VxWorks system startup failure

Technical field

The invention relates to the technical field of computer systems, and in particular to an automatic repair method, system, storage medium and equipment for VxWorks system startup failure.

Background technique

At present, the embedded real-time VxWorks operating system is widely used, mainly in fields with strong real-time requirements. Therefore, the requirements for its stability have also been increased, especially if a failure occurs, it will cause particularly serious and catastrophic consequences. Down. The high-speed EMU Central Control Unit (CCU) and Event Recording Unit (ERM) use the VxWorks operating system. The former requires real-time processing of data, while the latter requires real-time recording of data, so the system requirements are higher. . Whenever there is a problem with the CCU or ERM, it will usually cause the machine to break down and report it to the safety supervision department of the Railway Corporation. Even during the shunting stage in the warehouse, if the system fails to start, technicians will have to get on the train to deal with it, and the processing process is very complicated and time-consuming. If the train is too long, it is very likely to cause the EMU to be delayed, thus affecting the travel of passengers.

Contents of the invention

According to the problems existing in the prior art, the present invention discloses an automatic repair method for VxWorks system startup failure, which specifically includes the following steps:

Configure the bootrom.bin file used to start and load the VxWorks operating system image file in the device equipped with the VxWorks operating system;

Use DOS system to format the device hard disk;

In the DOS system, configure the config.sys file used to set selections and load the application menu. Add a shell command to the config.sys file. The shell command calls the rainbow.exe file. The rainbow.exe file is used to check the bootrom. Whether the bin file, the image file of the VxWorks operating system kernel and the autoexec.bat file can run normally;

After powering on, enter the DOS system, first load the config.sys file, set automatic selection and load the application menu, and after selecting the name of the configuration block, run the rainbow.exe program according to the shell command under the configuration block. The latter checks the autoexec.bat, bootrom.bin, vxload.com, VxWorks files necessary to start the VxWorks system and starts its configuration files. When one or several of the above files have problems, delete the problematic files and replace them with the same name. Copy the correctly backed up bootrom.bin file, image file, startup configuration file and autoexec.bat file to the original directory;

After rainbow.exe finishes running, it will enter the autoexec.bat file processing process;

Use the goto%config% command to associate the config.sys file with the autoexec.bat file, automatically run vxload.com in autoexec.bat, and load the VxWorks image file.

Add a shell command to the config.sys file, which calls the rainbow.exe file.

The rainbow.exe file is used to check the autoexec.bat, bootrom.bin, vxload.com, VxWorks files necessary to start the VxWorks system and start its configuration file.

After the system is powered on and enters the DOS system, it first loads the config.sys file and then the autoexec.bat file.

As mentioned in the config.sys file, set the optional menu for loading applications in the following format:

[MENU]

MENUITEM=Configuration block name, menu content

[configuration block name]

DEVICE＝C:\HIMEM.SYS/TESTMEM:OFF

SHELL=rainbow.exe

After the configuration block name is automatically selected, the autoexec.bat file processing flow is entered.

After the rainbow.exe file checks that there is a problem with the above startup file, complete the following operations:

Delete the old bootrom.bin file, image file, startup configuration file or executable application under the current hard disk;

Copy the new bootrom.bi file, image file, startup configuration file or executable application in the backup folder to the old bootrom.bin file, image file, startup configuration file or executable application directory, and replace all new files The name is changed to the name of the old file.

An automatic repair system for VxWorks system startup failure: including:

The configuration module configures the bootrom.bin file used to start and load the VxWorks operating system image file in the device equipped with the VxWorks operating system;

Format module, format the device hard disk into DOS system;

Setup module, configure the config.sys file used to set, select and load the application menu in the DOS system, add a shell command in the config.sys file, the shell command calls the rainbow.exe file and is used to delete and copy the bootrom in the hard disk .bin file, image file, startup configuration file or autoexec.bat file of executable application;

Load the module, enter the DOS system, first load the config.sys file, set the selection and load the application menu, run the rainbow.exe program, after the user selects the configuration block name, enter the autoexec.bat file processing process;

Analysis module, in the rainbow.exe program, checks the autoexec.bat, bootrom.bin, vxload.com, VxWorks files necessary to start the VxWorks system and its configuration files to start. When one or several of the above files have problems, delete them. For problematic files, copy the backed up bootrom.bin file, image file, startup configuration file and autoexec.bat file with the correct name to the original directory. After rainbow.exe finishes running, it enters the autoexec.bat file processing process. In the autoexec.bat file processing process, associate the config.sys file with the autoexec.bat file through the goto%config% command, automatically run vxload.com in autoexec.bat, and load the VxWorks image file.

A computer-readable storage medium stores a computer program. When the computer program is executed by a processor, the steps of the above method are implemented.

A universal device for starting and loading application programs under VxWorks, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program Steps to implement the above method.

Due to the adoption of the above technical solution, the present invention provides an automatic repair method system, storage medium and equipment for VxWorks system startup failure. This method edits config.sys, adds the startup patch rainbow.exe, and adds the startup patch rainbow.exe before booting the VxWorks system. The integrity of the boot file is judged without modifying the VxWorks image, so all system files can be judged for attribute modification and file damage, and key system files can be backed up.

Description of drawings

In order to explain the embodiments of the present application or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are some embodiments recorded in this application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a flow chart of the method of the present invention;

Figure 2 is a structural block diagram of the system of the present invention;

Figure 3 is a schematic diagram of an embodiment of the present invention;

Figure 4 is a schematic diagram of an embodiment of the present invention;

Figure 5 is a schematic diagram of an embodiment of the present invention.

Detailed ways

In order to make the technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the drawings in the embodiments of the present invention:

As shown in Figure 1, a method for automatic repair of VxWorks system startup failure is applied. The invention is applied to all devices using the embedded VxWorks operating system and various application software running on this system. When the system fails due to some reason, The problem of not starting normally. This invention will automatically fix the problem and allow the VxWorks system to continue booting normally without affecting all other functions.

As shown in Figure 2, an automatic repair method for VxWorks system startup failure includes:

Format module, format the device hard disk into DOS system;

When the high-speed EMU central control unit CCU is powered on, the DOS system is started first. After the DOS system is started, the autoexec.bat file will automatically run. Its function is to perform system settings, such as: path (setting path), mouse (mouse startup), DOSkey (keyboard management), set (setting environment variables), etc. autoexec.bat can also be used to configure startup information, load drivers, etc. Damage to autoexec.bat will cause CCU to fail to start. The startup process is shown in Figure 3. According to Figure 3, we can know that the "autoexec.bat" and "bootrom.bin" files need to be run in sequence before the VxWorks system starts. If you check whether the "autoexec.bat" and "bootrom.bin" files are damaged before running them, if they are damaged, then run the backup file or copy the backup file here to continue execution, which may avoid the CCU startup failure problem. .

When the DOS system starts, as shown in Figure 4, two system files IO.SYS and MSDOS.SYS must be read from the startup disk first, and then CONFIG.SYS, COMMAND.COM, and autoexec.bat three files. Among them, the three files IO.SYS, MSDOS.SYS and COMMAND.COM are indispensable, otherwise CCU will not start normally.

When the DOS system starts, only the system environment variable configuration file config.sys can be edited. Others such as IO.sys, MSDOS.sys, command.com, etc. are necessary and cannot be edited. Then only the editable system environment variable configuration file can be analyzed. congfig.sys.

The config.sys file is a professional system startup configuration file. It is mainly used to load memory management programs, set expanded memory and extended memory, load relevant hardware drivers, set relevant environment variables, etc., to create necessary settings for the normal use of the user's computer. user environment. The name of config.sys comes from the configuration system, and its purpose is to make DOS and the computer work more harmoniously.

Use Notepad or other text editor to open config.sys and find that it is the Microsoft MS-DOS 7.1 Startup Menu, followed by two options: DOS and VxWorks. Therefore, it is necessary to add file checking software to analyze whether the file is damaged in advance and make up for it. After research, you can add a script to call the rainbow.exe patch program to check whether the file is damaged.

Example:

The rainbow patch program, the executable file is rainbow.exe, is called in config.sys, so it can be run before running the "autoexec.bat" and "bootrom.bin" files.

1. Call method in config.sys

Open config.sys with Notepad or other text editing tools, and add "shell=rainbow.exe vxload.com bootrom.bin" to the last line of the [vxworks] configuration block, so that you can run "autoexec.bat" and "bootrom. bin" file before calling rainbow.exe.

2. Working principle of rainbow.exe

When the program starts executing, if it is CCU2, there will be a delay of 2 seconds. The purpose is to avoid running at the same time as CCU1 and to avoid the simultaneous failure of two CCUs due to this software.

Determine the size of the log file. If the file is larger than 512K, rename the log file.

Read the files in the backup directory again to determine whether the file name meets the requirements. Read the file with the same name in the root directory. If the file does not exist, copy the backup file to the root directory, and then check whether all files in the backup directory have been read. If a file with the same name exists in the root directory, check whether the file is consistent with the file with the same name in the backup directory. If they are consistent, check whether all files in the backup directory have been read. If they are inconsistent, delete the file in the root directory, continue to copy the backup file to the root directory, and determine whether all files in the backup directory have been read. When all the files in the backup directory have been read, CCU2 delays for 2 seconds to end the program. The flow chart is shown in Figure 5.

The above are only preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person familiar with the technical field can, within the technical scope disclosed in the present invention, implement the technical solutions of the present invention. Equivalent substitutions or changes of the inventive concept thereof shall be included in the protection scope of the present invention.

Claims

An automatic repair method for VxWorks system startup failure, which is characterized by including:

Configure the bootrom.bin file used to start and load the VxWorks operating system image file in the device equipped with the VxWorks operating system;

Use DOS system to format the device hard disk;

In the DOS system, configure the config.sys file used to set selections and load the application menu. Add a shell command to the config.sys file. The shell command calls the rainbow.exe file. The rainbow.exe file is used to check the bootrom. Whether the bin file, the image file of the VxWorks operating system kernel and the autoexec.bat file can run normally;

After powering on, enter the DOS system, first load the config.sys file, set automatic selection and load the application menu, after selecting the configuration block name, run the rainbow.exe program according to the shell command under the configuration block, where rainbow.exe checks Autoexec.bat, bootrom.bin, vxload.com, VxWorks files necessary to start the VxWorks system and start their configuration files. When one or several of the above files have problems, delete the problematic files and back up the correct ones with the same names. Copy the bootrom.bin file, image file, startup configuration file and autoexec.bat file to the original directory;

When rainbow.exe finishes running, it enters the autoexec.bat file processing process;

Use the goto%config% command to associate the config.sys file with the autoexec.bat file, automatically run vxload.com in autoexec.bat, and load the VxWorks image file.
The method according to claim 1, characterized in that: a shell command is added to the config.sys file, and the shell command calls the rainbow.exe file.
The method according to claim 1, characterized in that: the rainbow.exe file is used to check autoexec.bat, bootrom.bin, vxload.com, VxWorks files necessary to start the VxWorks system and start its configuration files.
The method according to claim 1, characterized in that: after the system is powered on and enters the DOS system, the config.sys file is first loaded and then the autoexec.bat file is loaded.
The method according to claim 1, characterized in that: in the config.sys file, an optional menu for loading applications is set, and the format is as follows:

[MENU]

MENUITEM=Configuration block name, menu content

[configuration block name]

DEVICE＝C:\HIMEM.SYS/TESTMEM:OFF

SHELL=rainbow.exe

After the configuration block name is automatically selected, the autoexec.bat file processing flow is entered.
The method according to claim 1, characterized in that: after the rainbow.exe file detects that there is a problem with the above-mentioned startup file, the following operations are completed:

Delete the old bootrom.bin file, image file, startup configuration file or executable application under the current hard disk;

Copy the new bootrom.bi file, image file, startup configuration file or executable application in the backup folder to the old bootrom.bin file, image file, startup configuration file or executable application directory, and replace all new files The name is changed to the name of the old file.
An automatic repair system for VxWorks system startup failure, which is characterized by: including:

The configuration module configures the bootrom.bin file used to start and load the VxWorks operating system image file in the device equipped with the VxWorks operating system;

Format module, format the device hard disk into DOS system;

Setup module, configure the config.sys file used to set, select and load the application menu in the DOS system, add a shell command in the config.sys file, the shell command calls the rainbow.exe file and is used to delete and copy the bootrom in the hard disk .bin file, image file, startup configuration file or autoexec.bat file of executable application;

Load the module, enter the DOS system, first load the config.sys file, set the selection and load the application menu, run the rainbow.exe program, after the user selects the configuration block name, enter the autoexec.bat file processing process;

Analysis module, in the rainbow.exe program, checks the autoexec.bat, bootrom.bin, vxload.com, VxWorks files and startup configuration files necessary to start the VxWorks system. When one or several of the above files have problems, delete them. For problematic files, copy the backed up bootrom.bin file, image file, startup configuration file and autoexec.bat file with the correct name to the original directory. After rainbow.exe finishes running, it enters the autoexec.bat file processing process. In the autoexec.bat file processing process, associate the config.sys file with the autoexec.bat file through the goto%config% command, automatically run vxload.com in autoexec.bat, and load the VxWorks image file.
A computer-readable storage medium, the computer-readable storage medium stores a computer program, characterized in that when the computer program is executed by a processor, the method of any one of claims 1 to 6 is implemented. step.
A universal device for starting and loading application programs under VxWorks, including a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: the processor executes the The computer program implements the steps of the method according to any one of claims 1 to 6.