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Vehicle-mounted controller data classification, storage and verification method

A vehicle-mounted controller and data classification technology, which is applied in the direction of program control, general control system, control/regulation system, etc., can solve the problems of data storage volume and data storage reliability, and achieve the effect of improving data storage reliability

Pending Publication Date: 2020-11-20
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to overcome the contradictions between data storage capacity and data storage reliability in the prior art, and to provide a method for data classification, storage and verification of vehicle-mounted controllers

Method used

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  • Vehicle-mounted controller data classification, storage and verification method
  • Vehicle-mounted controller data classification, storage and verification method
  • Vehicle-mounted controller data classification, storage and verification method

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Embodiment Construction

[0042] The present invention is described in detail below in conjunction with accompanying drawing:

[0043] A vehicle controller data classification, storage and verification method, including data storage mechanism:

[0044] Data is classified according to storage requirements, and can be divided into common data, key data, and key data that needs to be stored in real time.

[0045] Ordinary data refers to the general data that needs to be stored. For this type of data, it is only required to be able to judge whether the data is reliable when reading it. If it is unreliable, the default value can be used, which will not seriously affect the system function, including but not limited to time and date, this cycle throughput etc. The criteria for defining data as ordinary data are: 1. Data loss has no permanent impact on functions; 2. The consequences of data loss will not be perceived by users; 3. Data loss will not cause security risks.

[0046] Key data refers to data that...

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Abstract

The invention discloses a vehicle-mounted controller data classification, storage and verification method. The method comprises the following steps that vehicle-mounted controller data are classified;the data of the vehicle-mounted controller are stored and verified, wherein the vehicle-mounted controller data is divided into common data, key data and key data needing to be stored in real time according to storage requirements. Storage and verification of the vehicle-mounted controller data are divided into common data power-off storage and common data power-on verification, key data power-off storage and key data power-on verification, and power-off storage of the key data needing to be stored in real time and power-on verification of the key data needing to be stored in real time. The data storage reliability of the vehicle-mounted controller is improved; the data are classified according to the importance degree of the data and the consequence of data loss; different data storage and verification strategies are designed for data of different importance degrees, common data are verified, important data are subjected to multiple backups, data with serious faults and the like arestored in real time, and the storage space and the software operation efficiency are both considered while the reliability of key data is guaranteed.

Description

technical field [0001] The invention relates to the technical field of vehicle controller data processing, and relates to a method for classifying, storing and verifying vehicle controller data. Background technique [0002] At present, almost all on-board controllers have data storage functions, but most of them lack sufficient verification of data. Errors in data storage or reading may lead to unexpected behavior of the controller, and errors in key data may cause more serious consequences. [0003] CN104216791A discloses a method for verifying Flash storage data, which belongs to the technical field of data verification, adopts a Flash drive device to verify Flash storage data, and the verification method includes: a data writing unit to a storage block of the Flash storage device Write a section of data block; each section of data block has a unique identification information; the data writing unit extracts the identification information of the data block and saves it in...

Claims

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Application Information

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IPC IPC(8): G05B23/02
CPCG05B23/0213G05B2219/24065
Inventor 齐睿刘轶鑫荣常如马腾翔许立超
Owner CHINA FIRST AUTOMOBILE