CN108766473A - CD off-line searching system and method - Google Patents
CD off-line searching system and method Download PDFInfo
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- CN108766473A CN108766473A CN201810487653.5A CN201810487653A CN108766473A CN 108766473 A CN108766473 A CN 108766473A CN 201810487653 A CN201810487653 A CN 201810487653A CN 108766473 A CN108766473 A CN 108766473A
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
- G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Engineering & Computer Science (AREA)
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Abstract
The present invention relates to technical field of computer data storage, provide a kind of CD off-line searching system, including optical disc identified device, disc recording apparatus, disc accessing, optical disc management data library and multiple CD buckets.A kind of CD off-line search method, including six steps of S1-S6.CD is unique on blank CD in advance by optical disc identified device by the present invention, unified mark content, and when by disc recording apparatus imprinting blank panel CD, generate data content index, optical disc identified and content indexing is recorded to by optical disc management data library, when inquiring data, by retrieval optical disc management data library overall situation content indexing so that it is determined that the mark of CD where data, determine the position of the CD bucket of placing compact disc, physics or logical identifier are read by disc accessing later, so that it is determined that object optical disc, compared with manual identification, it is precisely and quick to search CD.
Description
Technical field
The present invention relates to technical field of computer data storage, specially a kind of CD off-line searching system and method.
Background technology
Codes or data generates speed and is continuously increased when big data, and the degree of dependence of data is also increasingly deepened in social life.
Therefore need it is a kind of can inexpensively, conveniently, reliably, the credibly storage device of long-term preservation mass data, system and mechanism.Light
Disk is a kind of storage medium being suitble to cheap long-term trusted storage data.Blu-ray Disc can reliably preserve data and be up to 50
Year, it is more than a century that CD in thousand, which can preserve data, and without special Conservation environment requirement.CD has good compatibility
Property, the CD manufactured before 30 years can still be read by existing CD-ROM drive.In addition in the natural calamities such as flood, earthquake, hurricane or electromagnetism
Artificially in attack, CD is the storage medium that can uniquely preserve for pulse etc., and there are higher data to preserve reliability.CD
It is to be made of the membrane coat of the other plastic sheet of grade and micron level, material cost is relatively low, in the case of mass production,
The cost of CD can drop to very low.The capacity of currently used Blu-ray Disc is 25GB, 50GB, 100GB etc..Capacity is
The Blu-ray Disc of 300GB is also progressing into consumer market.Standard access of the Blu-ray Disc of 25GB and 100GB in CD-ROM drive
Speed is respectively 26.9MB/s and 17.9MB/s.And hard-disk capacity is generally 4TB and 8TB, the access speed of single hard disk is
150MB/s。
CD can be stored in normal office room environmental by long-term offline after engraving data, and a collection of CD can be easy to protect
There are common plastics CD bucket (25/50/100 every barrel), and CD where request data is only placed into CD-ROM drive just when needed
It can be read out.And tape wants environment to keep constant temperature and humidity offline place, and is not so easy adhesion, mildew, falls magnetic powder
Deng leading to loss of data.And hard disk can preserve offline, but do not use for a long time, it can also make magnetic head adhesion or the ministry of electronics industry
Part fails, and leads to loss of data.If disk preserves data online, a large amount of power wastages on the one hand can be caused, and at most
Data Migration must be carried out by preserving 5 years.Therefore CD can conveniently, inexpensively and credibly carry out long-term a large amount of offline preservations.
But from the point of view of appearance, CD external form and specification are completely the same.If without special identifier, looked for from one group of CD
It is very difficult to particular optical disk.Basic skills is after the completion of CD burning, to facilitate to search CD in the future at present,
User provides certain mark generally by hand-written or by cd printer on the printing surface of CD upper surface.This mark
Knowledge facilitates user discrimination, can be the CD simple index of engraving data content or description.Not so, when inquiring next time,
It needs this group of CD to be put into CD-ROM drive a sheet by a sheet and reads data, determine whether to include required data.
The capacity of single compact disc is smaller for Disk and tape at present.The data of one hundreds of GB or more
Collection needs to be burnt in multiple physical discs.When it is only necessary to some data, it is difficult to quickly examine in the CD differentiated from this group
Rope takes time and effort very much to the CD comprising data.Although online CD server can carry out rope automatically for inner disc
Draw, but its cost is higher；Importantly, when CD server is full and CD server is failed (and 5 years), CD is needed to take out
CD server subsequently also needs to place offline.Therefore from the magnanimity CD constantly accumulated by existing manual method retrieval needed for
CD and data are exactly extremely difficult, large-scale application of the limitation CD in long term data storage field.
Therefore, there is an urgent need for a kind of CD off-line retrieval system and method, improve magnanimity usage of CD -ROM convenience and
Whole efficiency.
Invention content
The purpose of the present invention is to provide a kind of CD off-line searching system and methods, are existed in advance by optical disc identified device
Increase physics and unique, the unified mark of logic on blank CD, and when by disc recording apparatus imprinting blank panel CD, generates
Data content indexes, and optical disc identified and content indexing is recorded to by optical disc management data library, when inquiring data, is passed through
Retrieve optical disc management data library overall situation content indexing so that it is determined that data where CD mark, determine the CD bucket of placing compact disc
Position, physics or logical identifier are read by disc accessing later, so that it is determined that object optical disc, compared with manual identification,
It is precisely and quick to search CD.
To achieve the above object, the embodiment of the present invention provides the following technical solutions：A kind of CD off-line searching system, including
Optical disc identified device, disc recording apparatus, disc accessing, optical disc management data library and multiple CD buckets；
The optical disc identified device, for establishing the mark content that CD is unique, unified；
The disc recording apparatus is completed for the engraving data content on the blank CD of identified mistake, and in imprinting
Afterwards, the index of data content is generated；
The disc accessing, the data content for reading the mark or disk inner imprinting, and by reading
Information feeds back to the optical disc management data library or user is compared；
Each CD bucket, for placing the CD after the completion of establishing mark and imprinting；
The optical disc management data library records the mark and CD quarter that the optical disc identified device is established for storing
Recording device generates and feeds back the index information come, and record, lookup and the position for determining each CD bucket.
Further, the mark be divided into set on optical disc surface physical label and be burnt to the logical identifier of disk inner,
The disc accessing includes reader, and the reader is for reading the physical label or logical identifier.
Further, the physical label includes Quick Response Code, bar code, sequence number, the identifiable pattern of human eye and special
Mark；The logical identifier is the set of number coding for being burnt to disk inner.
Further, the reader includes the mobile phone that can scan the Quick Response Code, can scan the barcode scanning gun of the bar code,
The human eye of recognizable pattern or special identifier, and the digitally coded CD drive can be read.
Further, the index information includes plucking for the data content of imprinting, directory content and the data content of imprinting
It wants.
The embodiment of the present invention provides another technical solution：A kind of CD off-line search method, includes the following steps：
S1 uses optical disc identified device to distribute one uniquely according to particular optical disk mark rule for every blank CD in advance
Mark, finally these marks are registered in optical disc management data library；
Identified blank CD is placed into imprinting in disc recording apparatus by S2, after data carving is completed, according to every
It opens CD burning data content and generates data directory, CD managing is sent to for retrieving data content, and by the data directory
In database；
The complete CD of imprinting is put at least one CD bucket by S3, will be all in the CD bucket after piling one barrel
It is optical disc identified to be classified as a set of tags, using the optical disc identified as label of lowest level and top layer, and it is recorded in the CD pipe
It manages in database, with the label, to determine, optical disc identified range and CD bucket position are set in CD bucket；
S4, the CD content required to look up according to user are found and the CD content in the optical disc management data library
It is matched optical disc identified, and the set of tags where the mark is found, the label for needing to find is obtained, and determine corresponding CD bucket
Substantially physical location；
S5, reads the mark of top layer's CD of each CD bucket using disc accessing, and by the letter of reading
Breath, which is fed back in the optical disc management data library, to be compared, until finding object optical disc bucket；
S6 finds the CD of needs in object optical disc bucket.
Further, in the S1 steps：Corresponding physical label is printed to CD external physical surface, while logic
Mark is burnt to disk inner track, and inside and outside unique, unification optical disc identified to be formed, the physical label is specially two dimension
The identifiable pattern of code, bar code, sequence number, human eye or special identifier；The logical identifier is specially set of number coding；
The physical label and the logical identifier have one-to-one relationship.
Further, the disc accessing includes reader, and the physical label and institute are read using the reader
Logical identifier is stated, and the information of reading is fed back in the optical disc management data library and is compared, storage is navigated to and needs to look into
After the CD bucket for the CD looked for, required CD is quickly searched in the CD bucket by the sequence number on CD；The reader
Using the mobile phone that can scan the Quick Response Code, the barcode scanning gun of the bar code can be scanned, can recognize that the people of pattern or special identifier
Eye, and the digitally coded CD drive can be read.
Further, the complete CD of imprinting is put at least one CD bucket in the S3 steps and is specially：When with light
Disc identifier sequence is sequentially placed into CD bucket, using the optical disc identified as CD bucket mark of nethermost optical disc identified and most surface；
Or when CD burning is completed, registration successively is put into the optical disc identified of CD bucket, and with nethermost optical disc identified and most table
The optical disc identified of face identifies as CD bucket, to can determine that CD bucket includes CD set, and can register the position of CD bucket.
Further, in the S1 steps, it is specially according to particular optical disk mark rule：According to Disc physical characteristic, described
Optical disc identified device and current working status determine jointly.
Compared with prior art, the beneficial effects of the invention are as follows：By optical disc identified device in advance in blank CD glazing
Unique, the unified mark content of disk, and when by disc recording apparatus imprinting blank panel CD, generate data content index, CD
Mark and content indexing are recorded to by optical disc management data library, when inquiring data, by retrieving optical disc management data
Library overall situation content indexing so that it is determined that data where CD mark, the position of the CD bucket of placing compact disc is determined, later by light
Disk reading device reads physics or logical identifier, so that it is determined that object optical disc, compared with manual identification, search CD will it is accurate and
Quickly.
Description of the drawings
Fig. 1 is a kind of CD for being identified with physical label of CD off-line searching system provided in an embodiment of the present invention；
Fig. 2 is a kind of step flow chart of CD off-line search method provided in an embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the present invention provides a kind of CD off-line searching system, including optical disc identified device, disc recording apparatus, light
Disk reading device, optical disc management data library and multiple CD buckets；The optical disc identified device, for being identified according to particular optical disk
The globally unique mark of blank CD is calculated in rule；The particular optical disk mark rule be according to Disc physical characteristic,
The optical disc identified device and current state determine that CD uniquely encodes, and establish the mark content that CD is unique, unified；It is described
Disc recording apparatus is generated for the engraving data content on the blank CD of identified mistake, and after the completion of imprinting in data
The index of appearance；The disc accessing, the data content for reading the mark or disk inner imprinting, and by reading
Information feeds back to the optical disc management data library or user is compared；Each CD bucket establishes mark for placing
With the CD after the completion of imprinting；The optical disc management data library, for storing the mark for recording the optical disc identified device and establishing
The index information come, and record, lookup and the position for determining each CD bucket are generated and fed back with the disc recording apparatus
It sets.In this embodiment, physics and unique, the unified mark of logic are increased on blank CD by optical disc identified device in advance,
And when by disc recording apparatus imprinting blank panel CD, data content index is generated, optical disc identified and content indexing is to passing through light
Disk management database is recorded, when inquiring data, by retrieve optical disc management data library overall situation content indexing so that it is determined that
The mark of CD where data, determines the position of the CD bucket of placing compact disc, later by disc accessing read physics or
Logical identifier, so that it is determined that object optical disc, precisely and quick than manual identification, lookup CD.In actual operation, it will carve
The CD recorded is put at least one CD bucket, and after piling one barrel, all in the CD bucket optical disc identified are classified as one
A set of tags using the optical disc identified as label of lowest level and top layer, and is recorded in the optical disc management data library, with this
Label to determine, set in CD bucket by optical disc identified range and CD bucket position, when needing to retrieve some content, present CD pipe
Mark corresponding with the content is found in reason database, set of tags is then obtained by the mark, and by the identification feedback to light
It is compared in disk management database, is identified whether in the set of tags with what lookup to be retrieved, until looking on a display screen
To object optical disc bucket, the CD content of needs is found in object optical disc bucket.
As the prioritization scheme of the embodiment of the present invention, referring to Fig. 1, the mark is divided into the physics mark set on optical disc surface
Know and be burnt to the logical identifier of disk inner, the disc accessing includes reader, and the reader is for reading institute
State physical label or logical identifier.In the present embodiment, the physics of optical disc surface can be easily read by reader
Identify and be burnt to the logical identifier of disk inner, it is preferred that the physical label includes Quick Response Code, bar code, sequence number, people
The identifiable pattern of eye and special identifier；The logical identifier is the set of number coding for being burnt to disk inner, the reading
It includes the mobile phone that can scan the Quick Response Code to take device, can scan the barcode scanning gun of the bar code, can recognize that pattern or special identifier
Human eye, and the digitally coded CD drive can be read.CD bucket is scanned when using mobile phone either barcode scanning gun most
After the Quick Response Code and bar code of the CD of top, or after reading digital coding using CD drive, however, it is determined that need to examine
In where CD bucket, then the CD of rope will show CD that needs are retrieved in this CD bucket, on display screen
Required CD can be quickly found by the sequence number on each CD again.
As the prioritization scheme of the embodiment of the present invention, the index information include the data content of imprinting, directory content with
And the abstract of the data content of imprinting.By index information can be more convenient inquire.
Referring to Fig. 2, the embodiment of the present invention provides a kind of CD off-line search method, include the following steps：S1 is adopted in advance
A unique mark is distributed for every blank CD according to particular optical disk mark rule with optical disc identified device, corresponding object
Reason mark prints to CD external physical surface, while logical identifier is burnt to disk inner track, inside and outside uniquely with formation,
Unified is optical disc identified, and finally these marks are registered in optical disc management data library；S2 is placed into identified blank CD
Imprinting in disc recording apparatus generates data directory according to every CD burning data content, uses after data carving is completed
In retrieval data content, and the data directory is sent in optical disc management data library；S3, by the complete CD of imprinting be put into
In a few CD bucket, after piling one barrel, by the CD bucket it is all it is optical disc identified be classified as a set of tags, with lowest level and
The optical disc identified of top layer is used as label, and be recorded in the optical disc management data library, is determined in CD bucket with the label
Optical disc identified range and CD bucket position are set；S4, the CD content required to look up according to user, in the optical disc management data library
It finds matched optical disc identified with the CD content, and finds the set of tags where the mark, obtain the label for needing to find, and
Determine the substantially physical location of corresponding CD bucket；S5 reads top layer's light of each CD bucket using disc accessing
The mark of disk, and the information of reading is fed back in the optical disc management data library and is compared, until finding object optical disc
Bucket；S6 finds the CD of needs in object optical disc bucket.In this embodiment, by optical disc identified device in advance in blank CD
It is upper to increase physics and unique, the unified mark of logic, and when by disc recording apparatus imprinting blank panel CD, generate data content
Index, optical disc identified and content indexing is recorded to by optical disc management data library, when inquiring data, by retrieving CD
Manage database overall situation content indexing so that it is determined that data where CD mark, determine the position of the CD bucket of placing compact disc,
Physics or logical identifier are read by disc accessing later, so that it is determined that object optical disc, compared with manual identification, searches CD
It is precisely and quick.In actual operation, the complete CD of imprinting is put at least one CD bucket, it, will after piling one barrel
In the CD bucket it is all it is optical disc identified be classified as a set of tags, using the optical disc identified as label of lowest level and top layer, and
It is recorded in the optical disc management data library, with the label, to determine, optical disc identified range and CD bucket position are set in CD bucket, when
When needing to retrieve some content, mark corresponding with the content is found in present optical disc management data library, then passes through the mark
Knowledge obtains set of tags, and will be compared in the identification feedback to optical disc management data library, is to search the mark to be retrieved
It is no in the set of tags, until find object optical disc bucket on a display screen, the CD content of needs is found in object optical disc bucket.
By establishing inside and outside mark, the CD of needs can be more accurately searched.
Optimize said program, in the S1 steps：The physical label is specially Quick Response Code, bar code, sequence number, human eye
Identifiable pattern or special identifier；The logical identifier is specially set of number coding；It the physical label and described patrols
Collecting mark has one-to-one relationship.
As the prioritization scheme of the embodiment of the present invention, the disc accessing includes reader, using the reader
The physical label and the logical identifier are read, and the information of reading is fed back in the optical disc management data library and is compared
It is right, after navigating to the CD bucket for the CD that storage requires to look up, quickly searched in the CD bucket by the sequence number on CD
Required CD.In the present embodiment, the physical label of optical disc surface can easily be read by reader and be burnt to
The logical identifier of disk inner.
Said program is advanced optimized, the reader can scan the item using the mobile phone that can scan the Quick Response Code
The barcode scanning gun of shape code can recognize that pattern or the human eye of special identifier, and the digitally coded CD drive can be read.?
In the present embodiment, after using the mobile phone either Quick Response Code and bar code of the CD of barcode scanning gun scanning CD bucket the top, or
It is after reading digital coding using CD drive, however, it is determined that need the CD retrieved in this CD bucket, on display screen just
It can show that CD that needs are retrieved in where CD bucket, then can be looked for rapidly by the sequence number on each CD again
To required CD.
As the prioritization scheme of the embodiment of the present invention, the complete CD of imprinting is put at least one light in the S3 steps
It is specially in disk bucket：When being sequentially placed into CD bucket with optical disc identified sequence, with nethermost optical disc identified and most surface CD
Mark is identified as CD bucket；Or when CD burning is completed, registration successively is put into the optical disc identified of CD bucket, and with most lower
The optical disc identified of the optical disc identified and most surface in face identifies as CD bucket, to can determine that CD bucket includes CD set, and
The position of CD bucket can be registered.
The retrieval performance of this method is：Maximum barcode scanning CD number：log2(N).(N is CD barrelage amount), it is assumed that one barrel
60 CDs, are retrieved in 100,000 off-line optical discs, at most need barcode scanning about 11 times (if do not looked by the distance of prompt accurately
Look for), it is 2 times minimum (accurately being searched according to the distance of display).
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of CD off-line searching system, it is characterised in that：Including optical disc identified device, disc recording apparatus, disc reading
Device, optical disc management data library and multiple CD buckets；
The optical disc identified device, for establishing the mark content that CD is unique, unified；
The disc recording apparatus, for the engraving data content on the blank CD of identified mistake, and after the completion of imprinting, production
The index of raw data content；
The disc accessing, the data content for reading the mark or disk inner imprinting, and by the information of reading
It feeds back to the optical disc management data library or user is compared；
Each CD bucket, for placing the CD after the completion of establishing mark and imprinting；
The optical disc management data library records the mark and CD burning dress that the optical disc identified device is established for storing
It sets generation and feeds back the index information of coming, and record, lookup and the position for determining each CD bucket.
2. a kind of CD off-line searching system as described in claim 1, it is characterised in that：The mark is divided into set on CD table
The physical label in face and the logical identifier for being burnt to disk inner, the disc accessing includes reader, the reader
For reading the physical label or logical identifier.
3. a kind of CD off-line searching system as claimed in claim 2, it is characterised in that：The physical label includes two dimension
The identifiable pattern of code, bar code, sequence number, human eye and special identifier；The logical identifier is to be burnt to disk inner
Set of number encodes.
4. a kind of CD off-line searching system as claimed in claim 2, it is characterised in that：The reader includes that can scan institute
The mobile phone of Quick Response Code is stated, the barcode scanning gun of the bar code can be scanned, can recognize that pattern or the human eye of special identifier, and can be read
The digitally coded CD drive.
5. a kind of CD off-line searching system as described in claim 1, it is characterised in that：The index information includes imprinting
The abstract of data content, directory content and the data content of imprinting.
6. a kind of CD off-line search method, which is characterized in that include the following steps：
S1 uses optical disc identified device to distribute a unique mark according to particular optical disk mark rule for every blank CD in advance
Know, finally these marks are registered in optical disc management data library；
Identified blank CD is placed into imprinting in disc recording apparatus by S2, after data carving is completed, according to every light
Disk engraving data content generates data directory, and optical disc management data is sent to for retrieving data content, and by the data directory
In library；
The complete CD of imprinting is put at least one CD bucket by S3, after piling one barrel, by all CDs in the CD bucket
Mark is classified as a set of tags, using the optical disc identified as label of lowest level and top layer, and is recorded in the CD managing number
According in library, with the label, to determine, optical disc identified range and CD bucket position are set in CD bucket；
S4, the CD content required to look up according to user find in the optical disc management data library and are matched with the CD content
It is optical disc identified, and find the set of tags where the mark, obtain the label for needing to find, and determine corresponding CD bucket substantially
Physical location；
S5 reads the mark of top layer's CD of each CD bucket using disc accessing, and the information of reading is anti-
It is fed in the optical disc management data library and is compared, until finding object optical disc bucket；
S6 finds the CD of needs in object optical disc bucket.
7. a kind of CD off-line search method as claimed in claim 6, which is characterized in that in the S1 steps：Corresponding
Physical label prints to CD external physical surface, while logical identifier is burnt to disk inner track, with formed inside and outside only
One, unified optical disc identified, the physical label be specially Quick Response Code, bar code, sequence number, the identifiable pattern of human eye or
Special identifier；The logical identifier is specially set of number coding；The physical label and the logical identifier have an a pair
It should be related to.
8. a kind of CD off-line search method as claimed in claim 7, it is characterised in that：The disc accessing includes reading
Device is taken, the physical label and the logical identifier are read using the reader, and the information of reading is fed back into the light
It is compared in disk management database, after navigating to the CD bucket for the CD that storage requires to look up, passes through the sequence number on CD
CD needed for quickly being searched in the CD bucket；The reader can be scanned described using the mobile phone that can scan the Quick Response Code
The barcode scanning gun of bar code can recognize that pattern or the human eye of special identifier, and the digitally coded CD drive can be read.
9. a kind of CD off-line search method as claimed in claim 6, which is characterized in that in the S3 steps that imprinting is complete
CD is put at least one CD bucket：When being sequentially placed into CD bucket with optical disc identified sequence, with nethermost light
Disc identifier and the optical disc identified of most surface identify as CD bucket；Or when CD burning is completed, registration successively is put into CD
Bucket it is optical disc identified, and using the optical disc identified as CD bucket mark of nethermost optical disc identified and most surface, to can determine that
CD bucket includes CD set, and can register the position of CD bucket.
10. a kind of CD off-line search method as claimed in claim 6, which is characterized in that in the S1 steps, according to specific
Optical disc identified rule is specially：It is determined jointly according to Disc physical characteristic, the optical disc identified device and current working status.
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| CN201810487653.5A CN108766473B (en) | 2018-05-21 | 2018-05-21 | Optical disk off-line retrieval system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110134341A (en) * | 2019-05-24 | 2019-08-16 | 长城超云(北京)科技有限公司 | A kind of hard disk life cycle management method of server |
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