CN103530353B - Self-identification method of GPS user data format - Google Patents

Self-identification method of GPS user data format Download PDF

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Publication number
CN103530353B
CN103530353B CN201310470360.3A CN201310470360A CN103530353B CN 103530353 B CN103530353 B CN 103530353B CN 201310470360 A CN201310470360 A CN 201310470360A CN 103530353 B CN103530353 B CN 103530353B
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data
user
user data
write
format
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CN103530353A (en
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李峰
张璐
张丹
戴兵
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Shenyang Meihang Technology Co.,Ltd.
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Shenyang Mxnavi Co Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/26Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/22Indexing; Data structures therefor; Storage structures
    • G06F16/2282Tablespace storage structures; Management thereof
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/23Updating
    • G06F16/2365Ensuring data consistency and integrity

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

A kind of self-identifying method of navigation format of user data
Technical field
The present invention relates to vehicle mounted guidance field, particularly to a kind of self-identifying method of navigation format of user data.
Background technology
Stepping up with car owning amount, the use promoting vehicle mounted guidance is also increasingly popularized.So also having Increasing user will rely on the various user data store functions that navigation provides, and with navigation product Update upgrading, user is stored in substantial amounts of in old navigation, and important, user data can not be lost, and also have a lot simultaneously User requires navigation product to provide the store function of more detailed user profile, this user data storing in also making to navigate Structure become to become increasingly complex, how solving these problems will become more complicated.
User data, from navigation software for, refer to user oneself can be stored manually on navigation software or The information of modification, for example, address book, attribute information that can change on display module in electronic eye and some navigation etc. Can be according to the needs of user itself Deng, these information, storage that can be random and change.
The upgrading of navigation and renewal, refer to based on a basic navigation product through the transformation to itself or optimization And the demand that another the new navigation generating, this transformation and optimization are included according to user increases to the information of user data Plus or delete etc..Navigation upgraded and updated when so that user old navigation in storage user data preserved under Come, fully meet the needs of user, this also make navigation product have extreme high reliability, maintainability, ease for use and Safety.User is helped to solve old user data loss after user is upgraded and updates, before needing to re-enter The worries of the substantial amounts of user data having stored.
Content of the invention
The invention aims to solving the problems, such as the user data loss when navigation product updates upgrading, spy provides A kind of self-identifying method of navigation format of user data.
The invention provides a kind of self-identifying method of navigation format of user data it is characterised in that: described navigation is used The self-identifying method of user data form, the module interaction when carrying out the storage of user data using navigation product, such as Fig. 1;
The ingredient of used main modular when carrying out user's storage of whole navigation system, including navigation system System, memory module and user data module;
Navigation system, when carrying out the storage of user data, navigation system is responsible for and user interacts, user Want the work done, be identified by navigation system, for example, if user wants reading user data to be also intended to store number of users According to being all that the instruction that memory module is capable of identify that is changed into by navigation system, go to be operated.Then operation is final Result informs the user operating navigation system, and user is known that whether operation just now correctly completes.
Memory module, is to react after the instruction receiving navigation system, carries out the storage of data, reads and solves Analysis, the concrete module of memory module as shown in Fig. 2
Instruction resolution unit, the instruction being sent to memory module from navigation system will be through the solution of instruction resolution unit Analysis, after parsing, memory module just will appreciate that navigation system needs what operation is memory module carry out, and is data storage or reading Write data.
Format analysis unit, after the instruction parsing of the instruction resolution unit through instruction resolution unit, dependency number According to and command information, pass to format analysis unit, then format analysis unit will know that, with which type of form go read Data or write data.
I/o read-write cell, carries out the module of the read-write capability of data, and after two above module, system will be need To this module, i/o read-write cell will be carried out according to format analysis unit resolves form out data transfer to be write Write, if if reading data, also can be read out according to the form of parsing.
Navigation system is the user data of identification different-format, and these data can be converted into oneself can use Data, simultaneously data will not loss method be again:
In order to solve the complete consistency problem of data, navigation will carry out user data is deposited using embedded database Storage, embedded data belongs to the data base of lightweight, is characterized in that occupancy storage medium space is less, for embedded device Speech, the speed of service is fast, effect more preferably, and the most important to be data base have transaction protection mechanism, can be to data base Carry out effective transaction protection, without losing data, improve the safety of data.Carry out data carrying out substantial amounts of data During the write of storehouse, optimal mode is to carry out transaction protection before being write, and then carries out the write of mass data, writes Carry out artificial affairs afterwards to terminate, just having been written in data base substantial amounts of data safety, if midway has write wrong By mistake, it is carried out the rolling back action of affairs it is ensured that the safety of the data operating before writing.
In order to the generation of user data structure and parsing, using a kind of data format descriptor method, be based on a kind of energy Enough the form of user data can be organized according to certain form, in order to be read out data or write data When, carry out storage and format analysis it is easy to machine parses and generates according to this through the form organized, and permissible Carry out judging which change the form of user data has according to the formatted data through organizing, thus changing to data.
The structure of one user data has multiple members to constitute, and each member has the title of oneself, type, size, According to as above feature, carry out concluding unification.
The structural information of one user data is as shown in the table:
Member 1 Name variable Types of variables Array size Nested structure Parent type structure
Member 2 Name variable Types of variables Array size Nested structure Parent type structure
Member 3 Name variable Types of variables Array size Nested structure Parent type structure
It is also the feature according to user data structure to the tissue of data form, carry out format information is described, example As for member 1, the format information of the member 1 of current definition, this form type carries out group through form description technique The types of variables of member 1 used in new navigation system just can be identified, whether the information such as array size has change after knitting Change, carry out the conversion of data compatibility if changing, otherwise directly use.
After having the method that two above puts the axe in the helve, we can be carried out the compliance check of data.
Scheme one: the flow process of compliance check is as shown in Figure 3;
User carries out operating navigation system, such as interpolation data, modification data or deletion data, navigation system as needed System can pass through needing acquisition information and conveying information to command unit of user, after information transmission is to command unit, these Information is processed in command unit and processes, and forms the instruction that navigation memory module can identify, enters into format analysis mould After block, format analysis module notifies i/o read-write cell to take according to instruction set and goes read-write data in user data, when the data reading After i/o read-write cell is delivered to format analysis unit, format analysis unit starts to parse the form of data, if at this moment passed The data form passed is identical with the form of the user data of the Present navigation system in format analysis then data directly, to upload Pass, until informing user, if format analysis unit detects the form of user data and the number of users of Present navigation system Different according to form, then the renewal of advanced row data, is then feeding back to user.If write data, in data transfer to lattice When formula resolution unit, data will be according in format analysis unit, the form of the user data of Present navigation system is carried out The storage of data.
Scheme two: Fig. 4 compliance check flow chart;
Be different on the opportunity carrying out data renewal unlike the method for scheme one, such as Fig. 4;Enter in navigation system During row starts, in automatic detection user data, whether there is data, update without upgrading then can not be carried out, if Data is had then all of user data all to be read data resolution unit, then according in resolution unit by i/o read-write cell The form of current user data carry out the parsing of format of user data and the renewal of data, wait all of data all to update After the completion of, then write back in user data by i/o read-write cell, then navigation system starts and finishes, and user can normally read and write Or use user data, without being checked every time.
Advantages of the present invention:
The self-identifying method of navigation format of user data of the present invention, based on the use after conventional navigation upgrading or renewal A kind of innovative approach that user data can not be retained and use.The user being effectively retained in old navigation version is added and is changed Data so that upgrading or update after navigation software be equally useful reserved old user data and do not affect to lead The various functions of boat itself.This makes modern navigation software more intelligent, more hommization, compensate for navigating and is updating When cause the user user data loss deficiency.
Brief description
Below in conjunction with the accompanying drawings and embodiment the present invention is further detailed explanation:
Fig. 1 stores module interaction figure during user data for navigation product;
Fig. 2 is memory module configuration figure;
Fig. 3 is compliance check flow chart (scheme 1);
Fig. 4 is compliance check flow chart (scheme 2).
Specific embodiment
Embodiment 1
Present embodiments provide a kind of navigation format of user data self-identifying method it is characterised in that: described navigation The self-identifying method of format of user data, the module interaction when carrying out the storage of user data using navigation product, such as Fig. 1;
The ingredient of used main modular when carrying out user's storage of whole navigation system, including navigation system System, memory module and user data module;
Navigation system, when carrying out the storage of user data, navigation system is responsible for and user interacts, user Want the work done, be identified by navigation system, for example, if user wants reading user data to be also intended to store number of users According to being all that the instruction that memory module is capable of identify that is changed into by navigation system, go to be operated.Then operation is final Result informs the user operating navigation system, and user is known that whether operation just now correctly completes.
Memory module, is to react after the instruction receiving navigation system, carries out the storage of data, reads and solves Analysis, the concrete module of memory module as shown in Fig. 2
Instruction resolution unit, the instruction being sent to memory module from navigation system will be through the solution of instruction resolution unit Analysis, after parsing, memory module just will appreciate that navigation system needs what operation is memory module carry out, and is data storage or reading Write data.
Format analysis unit, after the instruction parsing of the instruction resolution unit through instruction resolution unit, dependency number According to and command information, pass to format analysis unit, then format analysis unit will know that, with which type of form go read Data or write data.
I/o read-write cell, carries out the module of the read-write capability of data, and after two above module, system will be need To this module, i/o read-write cell will be carried out according to format analysis unit resolves form out data transfer to be write Write, if if reading data, also can be read out according to the form of parsing.
Navigation system is the user data of identification different-format, and these data can be converted into oneself can use Data, simultaneously data will not loss method be again:
In order to solve the complete consistency problem of data, navigation will carry out user data is deposited using embedded database Storage, embedded data belongs to the data base of lightweight, is characterized in that occupancy storage medium space is less, for embedded device Speech, the speed of service is fast, effect more preferably, and the most important to be data base have transaction protection mechanism, can be to data base Carry out effective transaction protection, without losing data, improve the safety of data.Carry out data carrying out substantial amounts of data During the write of storehouse, optimal mode is to carry out transaction protection before being write, and then carries out the write of mass data, writes Carry out artificial affairs afterwards to terminate, just having been written in data base substantial amounts of data safety, if midway has write wrong By mistake, it is carried out the rolling back action of affairs it is ensured that the safety of the data operating before writing.
In order to the generation of user data structure and parsing, using a kind of data format descriptor method, be based on a kind of energy Enough the form of user data can be organized according to certain form, in order to be read out data or write data When, carry out storage and format analysis it is easy to machine parses and generates according to this through the form organized, and permissible Carry out judging which change the form of user data has according to the formatted data through organizing, thus changing to data.
The structure of one user data has multiple members to constitute, and each member has the title of oneself, type, size, According to as above feature, carry out concluding unification.
The structural information of one user data is as shown in the table:
Member 1 Name variable Types of variables Array size Nested structure Parent type structure
Member 2 Name variable Types of variables Array size Nested structure Parent type structure
Member 3 Name variable Types of variables Array size Nested structure Parent type structure
It is also the feature according to user data structure to the tissue of data form, carry out format information is described, example As for member 1, the format information of the member 1 of current definition, this form type carries out group through form description technique The types of variables of member 1 used in new navigation system just can be identified, whether the information such as array size has change after knitting Change, carry out the conversion of data compatibility if changing, otherwise directly use.
After having the method that two above puts the axe in the helve, we can be carried out the compliance check of data.
Scheme one: the flow process of compliance check is as shown in Figure 3;
User carries out operating navigation system, such as interpolation data, modification data or deletion data, navigation system as needed System can pass through needing acquisition information and conveying information to command unit of user, after information transmission is to command unit, these Information is processed in command unit and processes, and forms the instruction that navigation memory module can identify, enters into format analysis mould After block, format analysis module notifies i/o read-write cell to take according to instruction set and goes read-write data in user data, when the data reading After i/o read-write cell is delivered to format analysis unit, format analysis unit starts to parse the form of data, if at this moment passed The data form passed is identical with the form of the user data of the Present navigation system in format analysis then data directly, to upload Pass, until informing user, if format analysis unit detects the form of user data and the number of users of Present navigation system Different according to form, then the renewal of advanced row data, is then feeding back to user.If write data, in data transfer to lattice When formula resolution unit, data will be according in format analysis unit, the form of the user data of Present navigation system is carried out The storage of data.
Embodiment 2
It is in place of the difference of embodiment the present embodiment and embodiment 1, such as Fig. 4 compliance check flow chart;
Be different on the opportunity carrying out data renewal unlike the method for scheme one, such as Fig. 4;Enter in navigation system During row starts, in automatic detection user data, whether there is data, update without upgrading then can not be carried out, if Data is had then all of user data all to be read data resolution unit, then according in resolution unit by i/o read-write cell The form of current user data carry out the parsing of format of user data and the renewal of data, wait all of data all to update After the completion of, then write back in user data by i/o read-write cell, then navigation system starts and finishes, and user can normally read and write Or use user data, without being checked every time.

Claims (3)

1. a kind of navigation format of user data self-identifying method it is characterised in that: described navigation format of user data oneself Recognition methodss, the module interaction when carrying out the storage of user data using navigation product;
The ingredient of used main modular when carrying out user's storage of whole navigation system, including navigation system, Memory module and user data module;
Navigation system, when carrying out the storage of user data, navigation system is responsible for and user interacts, and user is wanted the work done Make, be identified by navigation system, if user wants reading user data to be also intended to store user data, be by navigation The instruction that system converting one-tenth memory module is capable of identify that, goes to be operated;Then the final result of operation is informed and grasp Make the user of navigation system, user is known that whether operation just now correctly completes;
Memory module, reacts after the instruction receiving navigation system, carries out the storage of data, reads and parses;
Instruction resolution unit, the instruction being sent to memory module from navigation system will be through the parsing of instruction resolution unit, solution After analysis, memory module just will appreciate that navigation system needs what operation is memory module carry out, and is data storage or read-write number According to;
Format analysis unit, through instruction resolution unit instruction resolution unit instruction parsing after, related data with Command information, passes to format analysis unit, then format analysis unit will know that, with which type of form goes to read data Or write data;
I/o read-write cell, carries out the module of the read-write capability of data, and after two above module, system will be write needs To this module, i/o read-write cell form out will be write the data transfer entering according to format analysis unit resolves, If if reading data, also can be read out according to the form of parsing;
Navigation system is the user data of identification different-format, and these data are converted into the data that oneself can use, Data will not loss method be again simultaneously:
In order to solve the complete consistency problem of data, navigation will carry out the storage to user data using embedded database, Embedded data belongs to the data base of lightweight, is characterized in that occupancy storage medium space is less, for embedded device, The speed of service is fast, effect more preferably, and the most important to be data base have transaction protection mechanism, data base can be carried out Effectively transaction protection, without losing data, improves the safety of data;Carry out database write carrying out substantial amounts of data Fashionable, optimal mode is to carry out transaction protection before being write, and then carries out the write of mass data, after writing Carry out artificial affairs to terminate, just having been written in data base substantial amounts of data safety, if there is write error midway, just The rolling back action of execution affairs is it is ensured that the safety of the data operating before writing;
In order to the generation of user data structure and parsing, using data format descriptor method, be can be user based on one kind The form of data is organized according to certain form, in order to when being read out data or write data, according to this Form through organizing carries out storage and format analysis it is easy to machine parses and generates, and can be according to through organize Formatted data carry out judging which change the form of user data has, thus changing to data;
The structure of one user data has multiple members to constitute, and each member has the title of oneself, type, size, according to As above feature, carries out concluding unification;
It is also the feature according to user data structure to the tissue of data form, carry out format information is described;Have with After upper two methods putting the axe in the helve, the compliance check of data can be carried out.
2. according to the navigation format of user data described in claim 1 self-identifying method it is characterised in that: described compatibility Inspection scheme one: user carries out operating navigation system, such as interpolation data, modification data or deletion data as needed, leads Boat system can pass through needing acquisition information and conveying information to command unit of user, after information transmission is to command unit, These information are processed in command unit and process, and form the instruction that navigation memory module can identify, enter into form solution After analysis module, format analysis module notifies i/o read-write cell to take according to instruction set and goes read-write data in user data, when read After i/o read-write cell is delivered to format analysis unit, format analysis unit starts to parse the form of data data, if this When the data form transmitted identical with the form of the user data of the Present navigation system in format analysis then data directly, to Upper transmission, until inform user, if format analysis unit detects the form of user data and the use of Present navigation system User data form is different, then the renewal of advanced row data, is then feeding back to user;If write data, in data transfer When to format analysis unit, data will be according to the form of the user data of Present navigation system in format analysis unit Carry out the storage of data.
3. according to the navigation format of user data described in claim 1 self-identifying method it is characterised in that: described compatibility Inspection scheme two: be different on the opportunity carrying out data renewal, during navigation system is started, automatic detection is used Whether there is data in user data, update without upgrading then can not be carried out, then pass through i/o read-write cell handle if there are data All of user data all reads data resolution unit, is then carried out according to the form of the current user data in resolution unit The parsing of format of user data and the renewal of data, after the completion of waiting all of data all to update, then are write by i/o read-write cell In reuse user data, then navigation system starts and finishes, and user can normally read and write or use user data, without entering every time Row checks.
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