CN103593407B - The storage of a kind of data file and back method - Google Patents
The storage of a kind of data file and back method Download PDFInfo
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- CN103593407B CN103593407B CN201310488983.3A CN201310488983A CN103593407B CN 103593407 B CN103593407 B CN 103593407B CN 201310488983 A CN201310488983 A CN 201310488983A CN 103593407 B CN103593407 B CN 103593407B
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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
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
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Abstract
The present invention relates to storage and the back method of a kind of data file, by data file with File header information, the form storage of yard facility information and yard device history information.Wherein File header information contains fileversion number, yard numbering and the data such as yard title, yard facility information, and it is made up of the number of devices of fixed length and elongated equipment loader table, and yard device history information, it is made up of yard information frame.Playback software plays back the historical picture information of any yard, and its foundation is exactly the form of the storage of data file.The present invention can realize playing back in any place the historical picture information of any yard easily.
Description
Technical field
The present invention relates to technical field of information storage, particularly relate to storage and the back method of a kind of data file.
Background technology
For the storage of information, rational storage mode can improve the utilization rate of software, has been also convenient for user.Especially
It is embodied in the industry relating to production safety, such as railway transportation.In these industries, the analysis of accident is to prevent this type of
The Main Means of accident.Yard information playback function in the past is all integrated in microcomputer monitoring, is man-to-man playback,
Playback yard information is inconvenient, and for being difficult through the playback of improved yard, in the prior art, in office
Where point plays back the historical picture information of any yard is very inconvenient.
Summary of the invention
The purpose of the present invention is to propose to storage and the back method of a kind of data file, to realize playback times in any place
The historical picture information of meaning yard.
To achieve these goals, an aspect of of the present present invention proposes a kind of storage method of data file, described method bag
Include
By system initialization；
Judge whether data file to be stored to be contrasted with current history data file；
If above-mentioned data file to be stored and current history data file being carried out contrast, then form information frame；
Carried out contrast without by above-mentioned data file to be stored and current history data file, then judged whether
Through there is current data file to be stored；
When above-mentioned file not in the presence of, then according to File header information and the yard facility information of this catalogue, regenerate playback number
According to file；
In the presence of above-mentioned file, then read the File header information in the date file in history data file and yard equipment letter
Breath；
Judge that data file to be stored is the most completely the same with the File header information in above-mentioned date file and yard facility information；
If above-mentioned information is completely the same, then form information frame；
If above-mentioned INFORMATION OF INCOMPLETE is consistent, then above-mentioned history data file is clipped to other catalogues；
File header information according to this catalogue and yard facility information, regenerate playback of data file；
Composition information frame；
Determine whether to regenerate date file；
When needs regenerate date file, then according to predetermined requirement, date of formation file according to current time, will
Information stores；
If need not regenerate date file, then directly according to current time, information is stored.
Data file is stored by having the beneficial effects that of the program of the present invention by said method, to facilitate data literary composition
The playback of part.
The invention allows for the system corresponding with said method.
Preferably, the storage format of data file includes File header information, yard facility information and yard device history
Information, wherein File header information is regular length, contains fileversion number, yard numbering and yard title；Yard equipment
Information includes the number of devices of fixed length and elongated equipment loader table；Yard device history information includes yard information frame, its
Length is determined with number of devices by fileversion number.
Another aspect of the present invention proposes the back method of a kind of data file, and described method includes
By system initialization；
The data file that selection is to be loaded；
Read the File header information in this document；
Judge whether the fileversion number in above-mentioned File header information obtains the support of the version that program is run；
When not obtaining supporting, the version of data file do not supported by prompting software, needs new support data file version
Playback software；
When obtaining supporting, reader station field device information, show yard picture；
Select time started and the end time of playback；
Judge that the above-mentioned time is the most legal；
When the above-mentioned time is illegal, prompt time is illegal, reselects time started and the end time of playback；
When the above-mentioned time is legal, then search playback data file, positioning time point；
Playback yard picture.
Having the beneficial effects that of the program of the present invention can be implemented in anywhere to yard historical picture by said method
Playback.
The invention allows for the system corresponding with said method.
Accompanying drawing explanation
Fig. 1 shows the Stored Procedure figure of playback of data file involved in the present invention.
Fig. 2 shows replayed section flow chart involved in the present invention.
Detailed description of the invention
With reference to the accompanying drawings the detailed description of the invention of the present invention is further described.
The storage of playback of data file is the basis realizing yard playback, and the storage of data file in the present invention is mainly by three
Individual part forms: File header information, yard facility information and yard device history information.Part I File header information is
Regular length, wherein contains the data such as fileversion number, yard numbering and yard title, is primarily used to initialize yard
With selection communication protocol, wherein yard numbering, yard title, planned complete, no when enterprise railway operation starts
There will be conflict or disappearance.Part II is yard facility information, and it is to be filled with elongated equipment by the number of devices of fixed length
Joining table composition, its task is to be independent of external file to singly complete loading.Part III yard device history information, it
Being made up of yard information frame, the message length of this part is to be determined with number of devices by fileversion number, and parsing is by literary composition
Part version number determines.
Playback software plays back the content of any yard, and its foundation is exactly the form of the storage of data file.
The storage method of data file involved in the present invention is as it is shown in figure 1, according to involved by the detailed description of the invention of the present invention
And the storage method of data file comprise the following steps: first by system initialization, as shown in S101 in Fig. 1, afterwards
Judge whether data file to be stored to be contrasted with current history data file, as shown in S102 in Fig. 1,
If above-mentioned data file to be stored and current history data file being carried out contrast, then form information frame, as
In Fig. 1 shown in S108, carried out contrast without by above-mentioned data file to be stored and current history data file,
Then judge whether to have there is current data file to be stored, as shown in S103 in Fig. 1, when above-mentioned file does not exists
Time, then according to File header information and the yard facility information of this catalogue, regenerate playback of data file, such as S107 in Fig. 1
Shown in, in the presence of above-mentioned file, then read the File header information in the date file in history data file and yard equipment
Information, as shown in S104 in Fig. 1, judges data file to be stored and the File header information in above-mentioned date file afterwards
And yard facility information is the most completely the same, as shown in S105 in Fig. 1, if above-mentioned information is completely the same, then form
Information frame, as shown in S108 in Fig. 1, if above-mentioned INFORMATION OF INCOMPLETE is consistent, then shears above-mentioned history data file
To other catalogues, the File header information of different directories is different from yard facility information, as shown in S106 in Fig. 1, and root afterwards
According to File header information and the yard facility information of this catalogue, regenerate playback of data file, as shown in S107 in Fig. 1,
Form information frame afterwards, as shown in S108 in Fig. 1, determine whether to afterwards regenerate date file, such as in next day
Zero point or the changeover time, as shown in S109 in Fig. 1, when needs regenerate date file, the most as requested,
Such as according to consecutive days or relieve interval, date of formation file, as shown in S110 in Fig. 1, afterwards according to time current
Between, information is stored, as shown in S111 in Fig. 1, if need not regenerate date file, then directly according to
Current time, stores information, as shown in S111 in Fig. 1.
The playback flow chart of data file is as in figure 2 it is shown, first by system initialization, as shown in S201 in Fig. 2, afterwards
The data file that selection is to be loaded, as shown in S202 in Fig. 2, reads the File header information in this document, such as S203 in Fig. 2
Shown in, judge whether the fileversion number in above-mentioned File header information obtains the support of the version that program is run afterwards, as above-mentioned
The version number of file is V2.0, and the version number playing back software is V1.0, then playback software just cannot play back, and when upper
The version number stating file is V1.0, and the version number playing back software is V2.0 or more highest version, then support playback exactly
, as shown in S204 in Fig. 2, when the fileversion number in above-mentioned File header information does not obtain the version of program operation
During support, the version of data file do not supported by prompting software, needs the playback software of new support data file version, such as figure
In 2 shown in S205, when the fileversion number in above-mentioned File header information obtains the support of the version that program is run, read
Yard facility information, show yard picture, as shown in S206 in Fig. 2, afterwards select playback time started with at the end of
Between, as shown in S207 in Fig. 2, judge that the above-mentioned time is the most legal afterwards, as shown in S208 in Fig. 2, when above-mentioned
Between illegal time, prompt time is illegal, as shown in S209 in Fig. 2, return step S207, reselect opening of playback
Time beginning and end time, when the above-mentioned time is legal, then search playback data file, positioning time point, in Fig. 2
Shown in S210, playback yard picture afterwards, as shown in S211 in Fig. 2.
The storage of data file involved in the present invention and back method complete by arranging special file memory format
The playback software playback function to any yard.Overcome playback software of the prior art to be embedded in yard monitoring of software, or
Its playback mode of person is relatively fixed, the most convenient, flexible shortcoming.Method involved in the present invention has only to copy according to this
The yard file of bright involved method storage and playback device software, can be carried out in any place directly playing back, both facilitated
The most quick.
Assume there are two yard, A and B, wherein A yard includes that equipment a1, a2, a3, B yard include equipment b1,
B2, b3, b4.Below as a example by A yard, the storage to data file illustrates with playback:
Mo is the monitoring program of A yard, in the configuration file of Mo to storage file needed for version number, stand
The field information such as title, equipment loader table is defined, and fileversion number is specifically defined as V1.0, and yard name definition is
" enterprise station ", yard ID is defined as 1, and equipment loader table represents the specifying information of equipment, does not the most do narration in detail at this,
The content needed can be added as needed on.
Start monitoring program, after receiving the information of yard, enter into memory module, it is judged that this data file to be stored
The data message of fileversion number, yard information, equipment loader table and reception whether carry out with current history data file
Crossing and compare, comparison here is after the startup of program, the comparison carried out when entering into this memory module for the first time when,
Also being uniquely once to compare, it is intended that if today, store was the file of 20130801, program runs to
Noon 10 point, needs more redaction, original V1.0 is upgraded to V2.0, then from the beginning of at 11 in the morning, the number of storage
Store according to form according to V2.0 exactly, if our storage file is to store in units of consecutive days, then just
Need the file of V1.0 version to move to other position, then the file of V2.0 version was entered with the date of 20130801
Row storage, it is not possible to the file of the file of V1.0 version Yu V2.0 version is put in one file, if they are placed on
In one file, be not the most to play back, simply playback software can design the most numerous and diverse.When not carrying out above-mentioned comparison
When, enter comparison step 103, first determine whether 20130801 such storage files, without 20130801
Such file, avoids the need for comparing, and the most there is not the situation that V1.0 Yu V2.0 version leaves in same file,
The most just fileversion number, yard information can be deposited hereof with equipment loader table, the header of such file includes
V1.0, QYZ, 1 and equipment loader table.
If entered after step 103, it is judged that history of existence data file, that will relate to after new startup
Whether monitoring program there occurs variation at fileversion number, yard information, equipment loader table, namely enters step 104,
File header information and the yard facility information of history data file are read out, enters step 105, by data to be stored
The File header information of file and yard facility information with restart after configure fileversion number, yard information, equipment dress
Join table contrast, if completely the same, just illustrate that all of information is not the most moved, then just can be directly at existing history number
Directly adding yard change information according to the afterbody of file, enter step 108, if changed, such as version number is from V1.0
Become V2.0, it may be possible to the former of certain semaphore represents with 4 bits, have now found that not, 5 will be added to
Position, then just there occurs the change of version, playback device also must with highest version at least want more than V2.0, so could protect
Card reads correct, in order to the data file of V1.0 version and V2.0 version separately, then will be the number of V1.0 version
Below paper cut to other file, enter step 106, enter step 107 afterwards, according to joining of monitoring program
Putting, generate new history data file with V2.0 version, the header of this document includes V2.0, QYZ, 1 and equipment
Loader table.Such purpose similarly is that the file of MP3 format can not be placed in an audio file with the file of MP4 form
Equally, namely first song first half head is MP3 format, and later half head is MP4 form, the most perhaps can play,
The most just the requirement to playback device is higher., enter 107 steps and the most do not generate complete data file, first sentence
Whether disconnected is suitable date file, if needs to generate new history data file according to regular hour rule, is carrying out
After above-mentioned judgement, above-mentioned File header information is inserted in the above-mentioned history data file regenerated, enters this for the first time and deposit
Storage modular program terminates.
When second time enters this memory module when, illustrate that new yard change expression information sends over, enter step
Rapid 102, when monitoring starts, step 102 has a variable to represent that this step has been carried out, entering this later
Step is just directly entered step 103, concrete, and when A yard includes equipment a1, when a2, a3, its state status is stood
Information frame represents, namely yard facility information changing frame, it is assumed here that the status information of each equipment is with 2 words
Joint represents, namely 16 bit, 0 to 7 colors representing equipment, 8 to 13 face representing equipment character
Color, 14,15 states (such as track switch determine antiposition) representing particular devices, then A yard has 3 equipment, so station
Field expression information is just made up of 3*2 byte, if the time is made up of 10 bytes, then the length of this frame is just
It is 10 bytes, 6 bytes plus facility information of time, totally 16 bytes.Open 20130801 files, due to
This file has housed corresponding File header information when entering memory module for the first time, then as long as yard equipment variations
The afterbody that information is inserted into file is the most permissible, when there is yard change information when, is inserted by yard facility information changing frame
The afterbody entered to file is achieved that information stores, and program leaves it at that.
Replayed section:
Replayed section is relatively easy to, and is first system initialization, step 201, selects data literary composition to be played back afterwards
Part, step 202, reads the File header information in file, step 203, judges the file in above-mentioned File header information afterwards
Whether version number obtains the support of version that program is run, and such as the V2.0 of the version number of above-mentioned file, and plays back the version of software
This number is V1.0, then playback software just cannot play back, and as the version number V1.0 of above-mentioned file, and play back the version of software
This number is V2.0 or more highest version, then support playback, step 204, the literary composition in above-mentioned File header information
When part version number does not obtain the support of the version that program is run, the version of data file do not supported by prompting software, needs new
Supporting the playback software of data file version, step S205, when the fileversion number in above-mentioned File header information obtains program
During the support of version run, reader station field device information, show yard picture, step 206, select opening of playback afterwards
Time beginning and end time, step 207, judge that the above-mentioned time is the most legal afterwards, step 208, do not conform to when the above-mentioned time
During method, prompt time is illegal, step 209, returns step 207, reselects time started and the end time of playback,
When the above-mentioned time is legal, then search playback data file, positioning time point, step 210, afterwards playback yard picture,
Step 211.
Table 1 shows the difference of A yard and B yard File header information, it is assumed that store with same version number, then
It is diverse in other several aspect A yard with B yard.Definition version number represents by 4 bytes, then V1.0
Version is exactly 0001, and yard title represents by 20 bytes, and yard numbering represents by four bytes, then A yard
Yard numbering be exactly 0001, the yard of B yard numbering is exactly 0002, number of devices two byte representations, A yard
Number of devices is 03, and calculation is high byte * 256+ low byte, is 0*256+3 for A yard.The equipment of B yard
Quantity is 04, if each equipment 50 byte representations (whole letters of some equipment of 50 byte representation yard
Breath, including the information such as device name, device coordinate), the equipment loader table information of A yard just has 150 bytes,
The equipment loader table information of B yard has 200 bytes.
Table 1
Claims (6)
1. the storage method of a data file, it is characterised in that: described method includes
By system initialization；
Judge whether data file to be stored to be contrasted with current history data file；
If above-mentioned data file to be stored and current history data file being carried out contrast, then form letter
Breath frame；
Without above-mentioned data file to be stored and current history data file carried out contrast, then judgement is
No there is current data file to be stored；
When above-mentioned current data file to be stored not in the presence of, then File header information and yard according to this catalogue set
Standby information, regenerates playback of data file；
In the presence of above-mentioned current data file to be stored, then read in the date file in history data file
File header information and yard facility information；
Judge data file to be stored and the File header information in above-mentioned date file and yard facility information the most complete
Cause；
If above-mentioned information is completely the same, then form information frame；
If above-mentioned INFORMATION OF INCOMPLETE is consistent, then above-mentioned history data file is clipped to other catalogues；
File header information according to this catalogue and yard facility information, regenerate playback of data file；
Composition information frame；
Determine whether to regenerate date file；
When needs regenerate date file, then according to predetermined requirement, date of formation file according to current time,
Information is stored；
If need not regenerate date file, then directly according to current time, information is stored.
Storage method the most according to claim 1, it is characterised in that: the storage format of data file includes File header information,
Yard facility information and yard device history information, wherein File header information is regular length, contains FileVersion
Number, yard numbering and yard title；Yard facility information includes the number of devices of fixed length and elongated equipment loader table；
Yard device history information includes yard information frame, and its length is determined with number of devices by fileversion number.
3. the storage system of a data file, it is characterised in that: described system includes
By the device of system initialization；
Judge whether the device that data file to be stored and current history data file being carried out contrasts；
If above-mentioned data file to be stored and current history data file being carried out contrast, then form letter
The device of breath frame；
Without above-mentioned data file to be stored and current history data file carried out contrast, then judgement is
The no device that there is current data file to be stored；
When above-mentioned current data file to be stored not in the presence of, then File header information and yard according to this catalogue set
Standby information, regenerates the device of playback of data file；
In the presence of above-mentioned current data file to be stored, then read in the date file in history data file
File header information and the device of yard facility information；
Judge data file to be stored and the File header information in above-mentioned date file and yard facility information the most complete
The device caused；
If above-mentioned information is completely the same, then form the device of information frame；
If above-mentioned INFORMATION OF INCOMPLETE is consistent, then above-mentioned history data file is clipped to the device of other catalogues；
File header information according to this catalogue and yard facility information, regenerate the device of playback of data file；
The device of composition information frame；
Determine whether to regenerate the device of date file；
When needs regenerate date file, then according to predetermined requirement, date of formation file according to current time,
Information is carried out the device stored；
If need not regenerate date file, then directly according to current time, information is carried out the device stored.
Storage system the most according to claim 3, it is characterised in that: the storage format of data file includes File header information,
Yard facility information and yard device history information, wherein File header information is regular length, contains FileVersion
Number, yard numbering and yard title；Yard facility information includes the number of devices of fixed length and elongated equipment loader table；
Yard device history information includes yard information frame, and its length is determined with number of devices by fileversion number.
5. the back method of a data file, it is characterised in that: described method includes
By system initialization；
The data file that selection is to be loaded；
Read the File header information in this document；
Judge whether the fileversion number in above-mentioned File header information obtains the support of the version that program is run；
When not obtaining supporting, the version of data file do not supported by prompting software, needs new support data file version
This playback software；
When obtaining supporting, reader station field device information, show yard picture；
Select time started and the end time of playback；
Judge that the above-mentioned time is the most legal；
When the above-mentioned time is illegal, prompt time is illegal, reselects time started and the end time of playback；
When the above-mentioned time is legal, then search playback data file, positioning time point；
Playback yard picture.
6. the playback system of a data file, it is characterised in that: described system includes
By the device of system initialization；
The device of the data file that selection is to be loaded；
The device of the File header information in reading this document；
Judge whether the fileversion number in above-mentioned File header information obtains the device of the support of the version that program is run；
When not obtaining supporting, the version of data file do not supported by prompting software, needs new support data file version
The device of this playback software；
When obtaining supporting, reader station field device information, the device of display yard picture；
Select the time started of playback and the device of end time；
Judge the most legal device of above-mentioned time；
When the above-mentioned time is illegal, prompt time is illegal, reselects time started and the end time of playback
Device；
When the above-mentioned time is legal, then search playback data file, the device that positioning time puts；
The device of playback yard picture.
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| CN201310488983.3A CN103593407B (en) | 2013-10-17 | 2013-10-17 | The storage of a kind of data file and back method |
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| CN105894216A (en) * | 2016-05-24 | 2016-08-24 | 国网江苏省电力公司无锡供电公司 | Power grid dispatching operation duty shifting aiding device |
| CN112383757B (en) * | 2020-11-16 | 2022-07-05 | 四川九洲空管科技有限责任公司 | Unmanned aerial vehicle comprehensive monitoring data multi-mode playback method and system |
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| CN101763876A (en) * | 2009-12-24 | 2010-06-30 | 卡斯柯信号有限公司 | Playback universal module |
| EP2388706A1 (en) * | 2010-05-21 | 2011-11-23 | Thomson Licensing | Method and system for real-time streaming and storage |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1685435A (en) * | 2002-08-13 | 2005-10-19 | 索尼株式会社 | Reproduction device and method, recording medium, and program |
| CN101763876A (en) * | 2009-12-24 | 2010-06-30 | 卡斯柯信号有限公司 | Playback universal module |
| EP2388706A1 (en) * | 2010-05-21 | 2011-11-23 | Thomson Licensing | Method and system for real-time streaming and storage |
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