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Self-identification method of GPS user data format

A technology of user data and data format, applied in the field of car navigation, can solve problems such as user data loss, and achieve the effect of making up for user data loss

Active Publication Date: 2014-01-22
SHENYANG MXNAVI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of user data loss when the navigation product is updated and upgraded, and provides a self-identification method for the navigation user data format

Method used

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  • Self-identification method of GPS user data format
  • Self-identification method of GPS user data format

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] This embodiment provides a self-recognition method of a navigation user data format, which is characterized in that: the self-recognition method of the navigation user data format, the module interaction when using the navigation product to store user data, such as figure 1 ;

[0034] The components of the main modules used by the entire navigation system for user storage, including the navigation system, storage module and user data module;

[0035] Navigation system, when storing user data, the navigation system is responsible for interacting with the user and identifying the work that the user wants to do through the navigation system. For example, if the user wants to read user data or store user data, both It is converted into instructions that can be recognized by the storage module through the navigation system to perform operations. Then reflect the final result of the operation to the user who is operating the navigation system, and the user will know whether ...

Embodiment 2

[0051] Embodiment The difference between this embodiment and embodiment 1 is that, as Figure 4 Compatibility check flow chart;

[0052] The difference from the method of scheme 1 is that the timing of data update is different, such as Figure 4 ; In the process of starting the navigation system, automatically detect whether there is data in the user data, if there is no data, it can not be updated, if there is data, all user data is read to the data analysis unit through the I / O read and write unit , and then analyze the format of the user data and update the data according to the format of the current user data in the parsing unit, wait for all the data to be updated, then write back to the user data through the I / O read-write unit, and then the navigation system After the startup is complete, the user can read, write or use user data normally without checking every time.

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Abstract

The invention relates to a self-identification method of a GPS user data format. In order to achieve the data integrity and consistency aims, an embedded database will be adopted in a GPS to store user data; in order to generate and analyze a user data structure, a data format description method is adopted, and the self-identification method is based on the fact that the user data format can be organized according to the certain format to enable a machine to easily analyze and generate the user data structure; the user data format is organized according to the characteristics of the user data structure, format information is described, and then data compatibility checking on data is carried out. The self-identification method has the advantages that the data added and changed by a user in an old GPS version are effectively retained, the already retained old user data can also be used in updated or refreshed GPS software, and various functions of the GPS are not influenced. The GPS software is intelligent and user-friendly, and the shortcoming of user data losses on the user when the GPS is refreshed and upgraded is overcome.

Description

technical field [0001] The invention relates to the field of vehicle navigation, in particular to a method for self-identifying navigation user data format. Background technique [0002] With the gradual increase of car ownership, the use of car navigation will become more and more popular. Therefore, more and more users will rely on the various user data storage functions provided by navigation, and with the update and upgrade of navigation products, users will store a large amount of important user data on the old navigation It cannot be lost. At the same time, many users request navigation products to provide more detailed user information storage functions, which also makes the structure of user data stored in navigation more and more complicated. How to solve these problems will become more complicated . [0003] User data, in terms of navigation software, refers to the information that the user can manually store or modify on the navigation software, for example, add...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G01C21/26
CPCG01C21/26G06F16/2282G06F16/2365
Inventor 李峰张璐张丹戴兵
Owner SHENYANG MXNAVI CO LTD
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