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Method for starting embedded-type Linux system used for protection measuring and controlling device

A protection measurement and control, embedded technology, applied in the direction of program control device, program loading/starting, etc., can solve problems such as abnormal loading of the system, and achieve the effect of ensuring normal startup and operation

Active Publication Date: 2014-04-30
武汉烽火富华电气有限责任公司
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AI Technical Summary

Problems solved by technology

Generally, the systems of embedded devices are stored in Flash. Due to the fact that Flash is prone to bad blocks, the system loads abnormally when the device starts. How to start Linux system

Method used

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  • Method for starting embedded-type Linux system used for protection measuring and controlling device
  • Method for starting embedded-type Linux system used for protection measuring and controlling device

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Embodiment Construction

[0014] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not used to limit the present invention.

[0015] See Figure 1-Figure 2 , The embedded system of the measurement and control device needs to go through three stages in sequence: uboot startup, kernel startup, and file system startup. Any problem in any stage of startup cannot complete the subsequent startup;

[0016] The present invention provides an embedded Linux system startup method for protecting a measurement and control device, which includes the following steps:

[0017] 1) The initial bootloader program of the measurement and control device CPU retrieves from the fixed area of ​​the Nand flash and reads the Uboot program startup tag item in the startup...

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Abstract

The invention discloses a method for starting embedded-type Linux system used for a protection measuring and controlling device. The method includes Uboot starting, Linux kernel starting and file system starting. The method is applied to a medium-low voltage protection measuring and controlling device, multiple storage mediums are used for starting, and a starting storage medium of a secondary priority can be automatically called to reloading a starting program at the stage, so that even if starting abnormality like loss and damage of a starting file and damage of the storage medium appears, normal starting and running of a measuring and controlling device system can be ensured.

Description

Technical field [0001] The invention relates to an embedded Linux system startup method for protecting a measurement and control device. Background technique [0002] With the widespread popularity of embedded systems, especially in some industrial control and power grid industries, high requirements are put forward for the stability of embedded systems, especially during the startup phase of the system. Generally, the system of embedded devices is stored in Flash. Because Flash is prone to bad blocks, the system is loaded abnormally when the device is started. It is based on this background that an embedded device applied in the field of power system protection and control is proposed. Linux system startup method. Summary of the invention [0003] The technical problem to be solved by the present invention is to provide an embedded Linux system startup method for protecting the measurement and control device in view of the defects in the prior art. [0004] The technical solution...

Claims

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Application Information

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IPC IPC(8): G06F9/445
Inventor 卢伟刘长虎朱宝崔新友章文学易佳黄俊
Owner 武汉烽火富华电气有限责任公司
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