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Software image backup method based on Tianmai operating system

A technology of operating system and software image, which is applied in the direction of data error detection, response error generation, redundant code error detection, etc. in the calculation, and can solve the problems of single software image damage and system failure to start normally. , to achieve the effect of improving reliability

Active Publication Date: 2021-04-16
沈阳飞机设计研究所扬州协同创新研究院有限公司
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Problems solved by technology

In order to solve the above problems, the present invention proposes a software image backup method based on the Tianmai operating system, which solves the problem that the system cannot be started normally due to damage to a single software image, is easy to implement, and improves the reliability of the avionics system

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  • Software image backup method based on Tianmai operating system
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  • Software image backup method based on Tianmai operating system

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the embodiments and the accompanying drawings.

[0016] In an avionics system, a single software image is deployed in a FLASH storage medium. When the FLASH in the area where the software image is stored jumps or is damaged, the system cannot be started normally. In order to solve the above problems, the present invention proposes a software image backup method based on the Tianmai operating system, which solves the problem that the system cannot be started normally due to damage to a single software image, is easy to implement, and improves the reliability of the avionics system.

[0017] For the backup of the software image file, when the software is deployed, the same software image file is deployed in different FLASH storage areas; after power-on, the power-on boot program selects the complete MSL software image to start; after the MSL software starts, Select a complete OS and application soft...

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Abstract

The invention discloses a software image backup method based on a Tianmai operating system, and belongs to the technical field of avionics system software image backup. According to the method, based on the idea of data backup, the same software image is deployed in different FLASH storage areas at the same time, and MD5 check codes of the software storage areas are calculated and stored; when the software is started, the power-on bootstrap program recalculates the integrity of the data of the FLASH storage area of the MSL software image, and the MSL software image of the FLASH area with the complete data is selected to be started; after the MSL is started, the integrity of the data in the image storage area of the operating system and the application software is calculated, and the operating system and the application software in the complete area are selected to start. According to the method, the problem that the system cannot be started due to FLASH jump and system power failure in software upgrading can be effectively solved, and the reliability and the stability of the system are improved.

Description

technical field [0001] The invention belongs to the technical field of backup of avionics system software images, and in particular relates to a software image backup method based on Tianmai operating system. Background technique [0002] Tianmai operating system is a domestic embedded real-time operating system, which has been widely used in avionics systems. After the system is powered on, the MSL project is started by power-on boot, and the operating system and application software are loaded and started. The power-on bootloader, MSL software, operating system, and application software are deployed in the FLASH storage medium. The frequency of power-on bootloader upgrades is low, while the frequency of MSL software, operating system, and application software upgrades is high. The traditional software image deployment is a single image. There is only one MSL software image, operating system image and application software image in the FLASH storage medium. When the FLASH j...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14G06F11/10G06F9/4401
CPCY02D10/00
Inventor 范超冯林朱庆伟安师杰刘伟王周栋
Owner 沈阳飞机设计研究所扬州协同创新研究院有限公司
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