CN105511918B - A kind of data memory format automatic maintenance method of intelligent electric energy meter - Google Patents
A kind of data memory format automatic maintenance method of intelligent electric energy meter Download PDFInfo
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- CN105511918B CN105511918B CN201510879994.3A CN201510879994A CN105511918B CN 105511918 B CN105511918 B CN 105511918B CN 201510879994 A CN201510879994 A CN 201510879994A CN 105511918 B CN105511918 B CN 105511918B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/11—File system administration, e.g. details of archiving or snapshots
- G06F16/119—Details of migration of file systems
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Abstract
A kind of data memory format automatic maintenance method of intelligent electric energy meter, the method include file system upgrading, file format conversion and automatic maintenance；In firmware upgrade, if data memory format changes, automatic data maintenance is prevented number loss or entanglement by intelligent electric energy meter.In order to facilitate intelligent electric energy meter automatic data maintenance, data memory format is defined as simple file system, i.e., the data of intelligent electric energy are divided into several files；If file system changes, need on the file copy in old file system to new address, and the file that convert file formats change.In use, the problem of being not necessarily to take care loss of data or entanglement after the firmware upgrade of intelligent electric energy meter scene, due to being automatically performed maintenance by intelligent electric energy meter completely, the time of the data maintenance caused by firmware upgrade is greatly saved in the present invention.
Description
Technical field
The present invention relates to the electrical energy measurement field of electric energy meter, specifically a kind of data memory format of intelligent electric energy meter
Automatic maintenance method.
Background technology
Currently, with the high speed development of intelligent grid, intelligent electric energy meter needs the data for acquiring and recording more and more, passes
The storage organization of system has been unable to meet user demand, since the node store structure design of structuring is simple, is easy to software developer
It safeguards, so being mainstream selection of the current electric energy meter producer in terms of Software for Design；But the shortcomings that storage organization of structuring
It is to be inserted into or delete a data in defined structure, may result in entire storage organization can all change, in table
The data and meter of record the configuration parameter of itself can all lose, and largely limit the development of electric energy meter software upgrading；
With the changes in demand of user, the increase of function is unavoidable, if directly replacing electric energy meter, can be brought in this way to social resources
Greatly waste；Data format automatic maintenance method is stored, the trouble and worry of current electric energy meter firmware upgrade can be solved.
Due to electric energy meter cost limiting factor, hardware resource is caused to be insufficient to allow with big file system, such as FATFS,
Therefore we have studied low costs, easily realize, and securely and reliably, the simple file system safeguarded automatically convenient for data memory format.
Invention content
The purpose of the present invention is being directed to the problem of live firmware upgrade leads to loss of data in intelligent electric energy meter, propose a kind of
The data memory format automatic maintenance method of intelligent electric energy meter.
The technical scheme is that：
A kind of data memory format automatic maintenance method of intelligent electric energy meter, it includes the following steps：
S1, file is divided, i.e., it is mutually only the data of intelligent electric energy to be divided into several according to different functions
Vertical subfile, each subfile are equipped with corresponding fileversion number；
S2, in firmware upgrade, if fileversion number changes, by the file copy in FileVersion to new
On address, and the file that convert file formats change.
The step S2 of the present invention specifically includes following steps：
When S2-1, firmware upgrade, intelligent electric energy meter receives new firmware, before application firmware, needs to check new firmware
With the firmware file system version number of current firmware, to judge whether firmware file system is compatible with, if firmware file system
Version number is consistent, then is compatible with, and directly upgrades, if incompatible, acquisition request upgrade file system converts firmware；
S2-2, into Boot programs, first determine whether firmware file system version number changes, if do not become
Change, then directly upgrade, load electric energy meter APP, the upgrade file system conversion that load step S2-1 is obtained if having changed is solid
Part goes to step S2-3；
After S2-3, loading upgrading filesystem conversion firmware, the data in memory are loaded onto in NORFlash first,
To ensure that data are not lost during conversion；
Judge whether the fileversion number of each subfile changes, it, will be current if fileversion number does not change
File imported into new storage address, if fileversion number changes, the data of current file format are converted to new file
Format, then new file is imported into new storage address；
S2-4, after executing upgrade file system conversion firmware, fileversion number is revised as to newest, restarting,
Boot programs load electric energy meter APP.
In the step S2-3 of the present invention, the data of current file format, which are converted to new file format, is specially：
Each data length in current file version is compared with each data length in FileVersion after upgrading：
If the data length of same position becomes 0 from several bytes, file format need not be copied when conversion
FileVersion of the shellfish position data to after upgrading；
If the data length of same position becomes several bytes from 0, after upgrading when file format is converted
FileVersion file in the default value of the position is written.
The default value of the present invention is full 0.
Beneficial effects of the present invention：
The present invention in use, without taking care loss of data or the problem of entanglement after the firmware upgrade of intelligent electric energy meter scene, by
In being automatically performed maintenance by intelligent electric energy meter completely, the time of the data maintenance caused by firmware upgrade is greatly saved.
Description of the drawings
Fig. 1 is the flow chart of the present invention.
Fig. 2 is the file system upgrading schematic diagram of the present invention.
Fig. 3 is the file format transfer process schematic diagram of the present invention.
Specific implementation mode
The present invention is further illustrated with reference to the accompanying drawings and examples.
As shown in Figure 1, a kind of data memory format automatic maintenance method of intelligent electric energy meter, it includes the following steps：
S1, file is divided, i.e., it is mutually only the data of intelligent electric energy to be divided into several according to different functions
Vertical subfile, each subfile are equipped with corresponding fileversion number；
S2, in firmware upgrade, if fileversion number changes, by the file copy in FileVersion to new
On address, and the file that convert file formats change；Specially：
When S2-1, firmware upgrade, intelligent electric energy meter receives new firmware, before application firmware, needs to check new firmware
With the firmware file system version number of current firmware, to judge whether firmware file system is compatible with, if firmware file system
Version number is consistent, then is compatible with, and directly upgrades, if incompatible, acquisition request upgrade file system converts firmware；
S2-2, into Boot programs, first determine whether firmware file system version number changes, if do not become
Change, then directly upgrade, load electric energy meter APP, the upgrade file system conversion that load step S2-1 is obtained if having changed is solid
Part goes to step S2-3；
After S2-3, loading upgrading filesystem conversion firmware, the data in memory are loaded onto in NORFlash first,
To ensure that data are not lost during conversion；
Judge whether the fileversion number of each subfile changes, it, will be current if fileversion number does not change
File imported into new storage address, if fileversion number changes, the data of current file format are converted to new file
Format, then new file is imported into new storage address；
S2-4, after executing upgrade file system conversion firmware, fileversion number is revised as to newest, restarting,
Boot programs load electric energy meter APP.
When specific implementation：
In order to realize the storage data format automatic maintenance method of intelligent electric energy meter, it is necessary first to which definition is a kind of convenient for storage
The easy file system that data format is safeguarded automatically：
The data of intelligent electric energy meter are divided into mutually independent subfile according to different functions, each subfile includes
There are version number, each item data etc..These subfiles merge the file system for being formed intelligent electric energy meter.
If file system changes, need on the file copy in old file system to new address, and
The file that convert file formats change greatlys save the time of maintenance.
As shown in Fig. 2, when file system upgrades, file system V0.1 is upgraded to V0.2
1）By the file 1 of file system V0.1,0x100 byte is read from initial address 0x00000004, storage is arrived
On the addresses 0x0x00000404 of V0.2 systems；
2）By the file 2 of file system V0.1,0x200 byte is read from initial address 0x00000104, storage is arrived
On the addresses 0x0x00000104 of V0.2 systems；
As shown in figure 3, being file format transfer process schematic diagram：
Delete a data：The length of data 3 is 1 byte in V0.1 versions, and the length of the data 3 in V0.2 versions
It is 0, then need not be copied in data 3 to the file of V0.2 versions when file format is converted.
Increase a data：The length of data 4 is 0 byte in V0.1 versions, and the length of the data 4 in V0.2 versions
It is 10, then needs the default value that data 4 are written in the file of V0.2 versions when file format is converted（It is defaulted as full 0）.
Part that the present invention does not relate to is the same as those in the prior art or can be realized by using the prior art.
Claims (3)
1. the data memory format automatic maintenance method of a kind of intelligent electric energy meter, it is characterized in that it includes the following steps：
S1, file is divided, i.e., the data of intelligent electric energy meter is divided into several independently of each other according to different functions
Subfile, each subfile be equipped with corresponding fileversion number；
S2, in firmware upgrade, if fileversion number changes, by the file copy in FileVersion to new address
On, and the file that convert file formats change；
Step S2 specifically includes following steps：
When S2-1, firmware upgrade, intelligent electric energy meter receives new firmware, before application firmware, needs to check new firmware and work as
The file system version number of preceding firmware, to judge whether firmware file system is compatible with, if firmware file system version number one
It causes, is then compatible with, directly upgrade, if incompatible, acquisition request upgrade file system converts firmware；
S2-2, into Boot programs, first determine whether file system version number changes, if do not changed, directly
Upgrading loads electric energy meter APP, and the upgrade file system that load step S2-1 is obtained if having changed converts firmware, goes to step
S2-3；
After S2-3, loading upgrading filesystem conversion firmware, the data in memory are loaded onto in NORFlash first, to protect
Card data are not lost during conversion；
Judge whether the fileversion number of each subfile changes, if fileversion number does not change, by current file
It is imported into new storage address, if fileversion number changes, the data of current file format are converted into new file format,
New file is imported into new storage address again；
S2-4, after executing upgrade file system conversion firmware, fileversion number is revised as to newest, restarting, Boot journeys
Sequence loads electric energy meter APP.
2. the method that data memory format according to claim 1 is safeguarded automatically, it is characterized in that in step S2-3, it will be current
The data of file format are converted to new file format：
Each data length in current file version is compared with each data length in FileVersion after upgrading：
If the data length of same position becomes 0 from several bytes, file format need not copy this when conversion
FileVersion of the position data to after upgrading；
If the data length of same position becomes several bytes from 0, by the text after upgrading when file format is converted
The default value of the position is written in the file of part version.
3. the method that data memory format according to claim 2 is safeguarded automatically, it is characterized in that default value is full 0.
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| CN111061699B (en) * | 2019-11-05 | 2024-02-09 | 广西电网有限责任公司 | Method and device for updating version of electric energy meter database |
| CN112114193B (en) * | 2020-07-30 | 2022-06-03 | 宁波三星医疗电气股份有限公司 | Method for metering single chip microcomputer power loss prevention through upgrading module terminal |
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| CN103346816A (en) * | 2013-06-28 | 2013-10-09 | 长沙威胜信息技术有限公司 | Wireless communication system and remote updating method thereof |
| CN103685554A (en) * | 2013-12-25 | 2014-03-26 | 浙江云巢科技有限公司 | Upgrading method, device and system |
| CN104007996A (en) * | 2014-06-16 | 2014-08-27 | 南京融教科技有限公司 | Reliable firmware upgrading realizing method for distributed control system |
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| US20100083242A1 (en) * | 2008-09-30 | 2010-04-01 | Kai Altstaedt | Installation management system for an aircraft server |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346816A (en) * | 2013-06-28 | 2013-10-09 | 长沙威胜信息技术有限公司 | Wireless communication system and remote updating method thereof |
| CN103685554A (en) * | 2013-12-25 | 2014-03-26 | 浙江云巢科技有限公司 | Upgrading method, device and system |
| CN104007996A (en) * | 2014-06-16 | 2014-08-27 | 南京融教科技有限公司 | Reliable firmware upgrading realizing method for distributed control system |
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Effective date of registration: 20210917 Address after: No.188, Tianyuan East Road, Jiangning District, Nanjing City, Jiangsu Province, 210000 Patentee after: JIANGSU HUAYUAN APPARATUS AND INSTR Co.,Ltd. Address before: No. 666, Linyang Road, Qidong City, Nantong City, Jiangsu Province, 226200 Patentee before: JIANGSU LINYANG ENERGY Co.,Ltd. |