CN107066901A - A kind of disposable mobile memory and its storage and the method for reading data - Google Patents
A kind of disposable mobile memory and its storage and the method for reading data Download PDFInfo
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- CN107066901A CN107066901A CN201710260959.2A CN201710260959A CN107066901A CN 107066901 A CN107066901 A CN 107066901A CN 201710260959 A CN201710260959 A CN 201710260959A CN 107066901 A CN107066901 A CN 107066901A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2143—Clearing memory, e.g. to prevent the data from being stolen
Abstract
The invention discloses a kind of disposable mobile memory, including interface unit, data processing unit and the memory cell being sequentially connected with, wherein, interface unit, for receiving needs storage and the data read and its instruction and being sent to data processing unit；Data processing unit, for receiving data and instruction from interface unit and being required according to instruction by the data write storage unit of reception, for obtaining data command from interface unit and being required to be read out memory cell according to instruction, and for will be sent from the data that memory cell is read to interface unit；Memory cell, using disposable memory, the data write for data storage processing unit.The invention also discloses the storage of above-mentioned mobile memory and the method for reading data.The present invention is used for the disposable storage of data, can guarantee that the data of storage are not easy to lose, any modification and deletion during long-term preservation and use.
Description
Technical field
The present invention relates to data storage technology, be particularly used for data handling system a kind of disposable mobile memory and
Its method for storing and reading data.
Background technology
The today rapidly transmitted in information, the storage of data causes the concern of people increasingly.Existing storage device is main
Storage device is put including movable storage device and with the inside and outside of system support, wherein, conventional movable storage device such as movement is hard
Disk, USB flash disk, various storage cards etc.；Conventional external storage such as magnetic (hard) disk, solid state hard disc, tape, CD, USB storages
Device, storage card (SD card, mmc card, memory stick, CF cards etc.) etc..
Movable storage device is the carrying of data for convenience, moves and transmit and arise at the historic moment, its have it is convenient with
Data handling system is connected and disconnected from, the advantages of the data stored in the case of without externally fed are not lost, are easy to carry.
Being currently used for the movable storage device of data handling system mainly includes that mobile memory medium can be repetitively written and can not write repeatedly
Enter the class of mobile memory medium two, wherein, mobile memory medium such as magnetizing mediums, FLASH etc. can be repetitively written, shifting can not be repetitively written
Dynamic storage medium such as CD etc..Magnetizing mediums, FLASH etc. can be repetitively written mobile memory medium in unexpected power down, fall and repeatedly
When erasable, loss of data and damage are extremely likely to cause, and CD etc. can not be repetitively written mobile memory medium and exist
During preservation and use, surface is easily worn and deformed, and data can not be read and write by ultimately resulting in.How to design in length
Phase preserve and use during data not easy to lose can not be repetitively written mobile memory medium, it is universal that this turns into current people
The problem of concern, however, it is existing without corresponding equipment, also have no related report.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide the one kind for being used for data handling system is disposable
Mobile memory, data are once write-in when it is applied, you can guarantee that and stored in it during long-term preservation and use
Data will not lose and damage, and arbitrarily can not change and delete.The invention also discloses the storage of above-mentioned mobile memory and reading
The method for evidence of fetching.
The present invention, which solves the above problems, to be achieved through the following technical solutions：A kind of disposable mobile memory, including
Interface unit, data processing unit and the memory cell being sequentially connected with, wherein,
Interface unit, for receiving needs storage and the data read and its instruction and being sent to data processing unit；
Data processing unit, for receiving data and instruction from interface unit and being required to write the data of reception according to instruction
Enter memory cell, for obtaining data command from interface unit and requiring to be read out memory cell according to instruction, Yi Jiyong
In will be sent from the data that memory cell is read to interface unit；
Memory cell, using disposable memory, the data write for data storage processing unit.The present invention is once
Property memory cell be one-time write chip, each storage location can only write once in disposable memory cell, can not enter
Row is repetitively written, and data content can not be changed again after write-in.But, it can be continued to write in the position for not writing data.This
The mobile memory of invention is disposable storage, and usage scenario stores to be mobile.
Further, the bus control unit that the interface unit is connected by bus hub and with bus hub is constituted, described
Bus control unit is used to the data transmitted through interface unit are handled and are transmitted by bus protocol.
Further, the bus hub connects provided with USB interface, LAN interface, IEEE1394 interfaces, Thunderbolt
Any one or more interface in mouth, SD interface, CF interfaces, MMC interfaces, eSATA interfaces, Lightning EBIs.This
Set up during invention application and be based on USB, LAN, IEEE1394, Thunderbolt, SD, CF, MMC, eSATA, Lightning bus
Information exchanging channel, the data of transmission are according to USB interface, LAN interface, IEEE1394 interfaces, Thunderbolt interfaces, SD
Interface, CF interfaces, MMC interfaces, eSATA interfaces, form packing as defined in Lightning bus standards, the present invention can by USB,
The interfaces such as LAN, IEEE1394, Thunderbolt, SD, CF, MMC, eSATA, Lightning or external independent current source are this hair
Bright power supply.When mobile memory of the present invention is used for data handling system, using USB interface, LAN interface, IEEE1394
Interface, Thunderbolt interfaces, SD interface, CF interfaces, MMC interfaces, eSATA interfaces, Lightning EBI grafting, this
A little EBIs are the universal interfaces of data handling system Peripheral Interface, there is corresponding international standard, and the purpose is to be all
Computer peripheral equipment provides unified interface, improves transmission speed, and diversified interface mode increases attachable device category sum
Amount, to facilitate user.The present embodiment and the information exchanging channel of data handling system are USB interface, LAN interface, IEEE1394
Interface, Thunderbolt interfaces, SD interface, CF interfaces, MMC interfaces, eSATA interfaces, Lightning buses, mobile memory
It between data handling system main frame, can at any time plug, plug and play, without shutdown, and without huge driver, not have
Mechanical rotation part, it is lightweight, start fast.
Further, the data processing unit is connected with the indicating member for indicating operating status.
Further, at a kind of disposable mobile memory, in addition to write-protect module, the write-protect module and data
Unit and/or memory cell connection are managed, for controlling the data write-in to disposable memory.
Further, a kind of disposable mobile memory, in addition to power supply, the power supply is that mobile memory is supplied
Electricity.
Based on a kind of above-mentioned disposable mobile memory storage and the method for reading data, including data storage step and reading
Data step is taken, wherein,
The data storage step comprises the following steps：
S1.1, the interface unit of mobile memory and the main frame of data handling system connected, at the beginning of completing mobile memory
Beginningization；
S1.2, pending data processing system are received after the write command and write-in data of user's transmission, and write command is converted into
The write operation instruction that data processing unit understands and performed, and send write operation instruction and write-in data to interface unit, connect
Write operation is instructed and write data again and sends data processing unit to by mouth unit；
S1.3, data processing unit are instructed according to the write operation received, and pending data processing system needs what is write to own
After the completion of data, write-in result is sent to data handling system by interface unit；
The reading data step comprises the following steps：
S2.1, the interface unit of mobile memory and the main frame of data handling system connected, at the beginning of completing mobile memory
Beginningization；
S2.2, pending data processing system are received after the reading instruction of user's transmission, and reading instruction is converted into data processing list
The read operation of meta-comprehension and execution instructs and sends interface unit to, and interface unit sends read operation instruction to data processing again
Unit；
S2.3, data processing unit are read out according to read operation instruction to memory cell, and the data of reading are through interface list
Member output is into data handling system.
Further, write when the data volume of the data storage step write-in is big by the way of in batches, it is described to read
The data volume for taking data step to read is read when big by the way of in batches.Wherein, the data volume of the invention in write-in hour,
Write using single；In the data volume hour of reading, read using single.
Further, a kind of disposable mobile memory storage and the method for reading data, in addition to write-protect step, institute
Stating write-protect step includes two ways, and the concrete operation step of first way is：
Data handling system sends write-protect instruction to data processing unit, and data processing unit is received after write-protect instruction
The data write-in functions to memory cell are turned off, and/or allow function to close memory cell write-in；
The concrete operation step of the second way is：Using data processing unit number is given the state notifying of write-protect module
According to processing system, it is judged by data handling system, so as to decide whether to carry out data storage step.In this way, the present invention should
Used time can use " hard " write-protect mode, can also use " soft " write-protect mode, can also the two combined use.
Further, a kind of disposable mobile memory storage and the method for reading data, in addition to destroy or erasing number
According to step, the concrete operation step of the destruction or erasing step is：
Data handling system is sent to data processing unit destroys or erasing data command, and data processing unit receives destruction
Or it is after erasing data command that memory cell is all or have the storage location of data division and be all set to " 1 " or " 0 " so that deposit
The data of storage can not be read or be recovered.
In summary, the invention has the advantages that：(1) mobile memory overall structure of the invention is simple, makes
It is few with component, it is easy to implement, cost is low, light, portable, easily use, write-in data will not lose and damage, and can not appoint
Meaning modification and deletion, can lift the reliability of data storage, easy to utilize.
(2) it is easy to be connected or disconnected from data handling system during present invention application so that operate during present invention application
It is convenient.
(3) present invention by using USB interface, LAN interface, IEEE1394 interfaces, Thunderbolt interfaces, SD interface,
CF interfaces, MMC interfaces, eSATA interfaces, Lightning EBIs, realization activity external memory, and it is hot-pluggable, that is, insert i.e.
With, without shutdown, access is fast, and capacity is big, small volume, carries very convenient, is hardly damaged, data can persistence, while most
Multiple disposable external memory devices can be connected more to computer.The present invention be applied to it is any support support USB interface, LAN interface,
IEEE1394 interfaces, Thunderbolt interfaces, SD interface, CF interfaces, MMC interfaces, eSATA interfaces, Lightning buses
Data handling system.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is the structural representation of a specific embodiment of the invention.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment and its explanation of the invention is only used for explaining the present invention, does not make
For limitation of the invention.
Embodiment：
As shown in figure 1, a kind of disposable mobile memory, including interface unit, data processing unit, indicating member, write
Protection module, power supply and memory cell, wherein, interface unit, processing unit and memory cell are sequentially connected with, what this was sequentially connected with
Unit is logical relation, be may reside in one or more physical hardwares.The interface unit of the present embodiment, which is used to receive, to be needed
Storage and the data read and its instruction are simultaneously sent to data processing unit；Data processing unit is used to receive number from interface unit
Required according to instruction and according to instruction by the data write storage unit of reception, for obtaining data command and root from interface unit
Require to be read out memory cell according to instruction, and for will be sent from the data that memory cell is read to interface unit；Deposit
Storage unit, using disposable memory, the data write for data storage processing unit；Indicating member and data processing unit
Connection, for indicating operating status；Write-protect module is connected with data processing unit and/or memory cell, for controlling to one
The data write-in of secondary property memory；Power supply is powered for mobile memory, and power supply mode includes bus power taking and external independence
Power supply two ways.
The bus control unit that the interface unit of the present embodiment is connected by bus hub and with bus hub is constituted, bus marco
Device is used to the data transmitted through interface unit are handled and are transmitted by bus protocol.The bus hub of the present embodiment is provided with
USB interface, LAN interface, IEEE1394 interfaces, Thunderbolt interfaces, SD interface, CF interfaces, MMC interfaces, eSATA interfaces,
Any one or more interface in Lightning EBIs.When the present embodiment is applied, according to USB, LAN, IEEE1394,
Movement of the interface standards such as Thunderbolt, SD, CF, MMC, eSATA, Lightning in data handling system and the present embodiment
The information to be exchanged is transmitted between memory.The memory cell of the present embodiment uses otp memory, and otp memory is a kind of big
Volume electronic formula storage chip or module, small volume, speed are fast, can be with persistence after data write-in, and data retention is good,
After write-in in the case of power supply is not added with, long-term preservation data can be preserved.Antifuse technology can be used in the chip of memory cell, is deposited
Storage unit internal data presses binary address tissue.In this way, the present embodiment use disposable storage medium (OTP), by USB,
The EBIs such as LAN, IEEE1394, Thunderbolt, SD, CF, MMC, eSATA, Lightning and plug and play technique, be
User provide it is safe, light, portable, it is easy use, highly reliable flash memory device, write-in data will not lose, damage and
Modification, deletion, and support different operating system.The data processing unit of the present embodiment is using single-chip microcomputer, embedded chip etc.
Microcontroller implementation, indicating member is realized using light emitting diode or display (such as LCD, OLED), with the luminous shape of its difference
State or display content represent different working condition respectively.
A kind of disposable mobile memory storage and the method for reading data, including data storage step and reading data step
Suddenly, wherein, data storage step comprises the following steps：S1.1, by the interface unit of mobile memory and data handling system
Main frame is connected, and completes mobile memory initialization；S1.2, pending data processing system receive write command and the write-in of user's transmission
After data, write command is converted into the write operation instruction that data processing unit understands and performed, and write operation is instructed and write
Data send interface unit to, and write operation is instructed and write data again and sends data processing unit to by interface unit；S1.3, number
Instructed according to processing unit according to the write operation received, pending data processing system is needed after the completion of all data of write-in, will be write
Enter result and data handling system is sent to by interface unit.
Data step is read to comprise the following steps：S2.1, by the interface unit of mobile memory and data handling system
Main frame is connected, and completes mobile memory initialization；S2.2, pending data processing system are received after the reading instruction of user's transmission, will
Reading instruction is converted into the read operation that data processing unit understands and perform and instructs and send interface unit to, and interface unit will be read again
Operational order sends data processing unit to；S2.3, data processing unit are read out according to read operation instruction to memory cell,
The data of reading are exported into data handling system through interface unit.
The procedure code of the present embodiment initialization is all stored in data processing unit, on the mobile memory of the present embodiment
After electricity, data handling system can inquire about bus control unit, and now bus control unit can produce interruption to data processing unit, then
Data processing unit is got in touch by operator trunk controller and data handling system, and data handling system is according to data processing
Various characteristics or mark that unit is fed back with bus control unit and notify data processing unit relevant with bus control unit carry out
Initial setting up, be next step prepare normal data exchange be ready.
The present embodiment also include write-protect step, wherein, write-protect step include two ways, first way it is specific
Operating procedure is：Data handling system sends write-protect instruction to data processing unit, and data processing unit receives write-protect and referred to
The data write-in functions to memory cell are turned off after order, and/or allow function to close memory cell write-in.The second way
Concrete operation step is：Using data processing unit the state notifying of write-protect module to data handling system, by data
Reason system is judged it, so as to decide whether to carry out data storage step." write in this way, the mobile memory of the present embodiment is set
Protection " function, it can be " hard " protected mode or " soft " protected mode, can also be the two side being used in combination
Formula.So-called " hard " protected mode, is to make mobile memory can not write data, this implementation using a state of write-protect module
During the write-protect module work of example, make the write-protect pin of mobile memory hanging or ground connection, then coordinate data processing unit
Judge, mobile memory is closed write-in functions, or mobile memory inside " write-protect position " is set to guard mode and causes movement
Memory can not write data.And " soft " protected mode, then it is state notifying of the data processing unit write-protect module
To data handling system.The present embodiment is combined into the soft guarantor of mobile memory offer by data processing unit and matching somebody with somebody for data handling system
Shield, i.e., when write-protect resume module guard mode, data processing unit can be write-protect state notifying data handling system, number
According to processing system without data storage step, so that the content in mobile memory cannot be changed, the letter for storing user
Breath is protected.
The present embodiment also includes destroying or erasing data step, wherein, destroy or the concrete operation step of erasing step is：
Data handling system is sent to data processing unit destroys or erasing data command, and data processing unit receives destruction or erasing number
According to after instruction that memory cell is all or have the storage location of data division and be all set to " 1 " or " 0 " so that the data of storage
It can not be read or be recovered.
The present embodiment in the specific implementation, if the data volume that need to be stored is big, can store data in batches, i.e., first by first
Criticizing needs the data write to send to interface unit and through data processing unit write storage unit, then second batch is needed into write-in
Data send to interface unit and through data processing unit write storage unit, so repeat, until last batch of need write
The data write storage unit entered.The present embodiment in the specific implementation, if the data volume that need to be read is big, can read data in batches
Take, i.e., first read the first batch data, then read the second batch data, until reading last batch of data.
When the mobile memory of the present embodiment is applied, the movement described in the present embodiment is loaded in the data handling system
The drive module of memory, under the management of data handling system, is received the operation requests of user by drive module, and this is grasped
Operational order is processed as request, data processing unit is sent to, after data processing unit is handled, by result and processing state
Drive module is returned, the process that data handling system handles external memory device is completed, i.e. data exchange mistake between the two is completed
Journey.
When data handling system is connected to read operation, the operation can be sent to drive module, drive module can turn it
Change the mode of operation of mobile memory into.Afterwards, drive module further carries out bus data packing, number to the operation after conversion
Read request is sent to data processing unit by bus according to processing system, the read operation, and handle are performed by data processing unit
The data and status information of reading return to drive module, and then the data and status information of the reading are sent by drive module
To data handling system.So far, read operation is completed.
When data handling system is connected to write operation, the operation can be sent to drive module, drive module can turn it
Change the mode of operation of mobile memory into.When write operation reaches mobile memory, if writing position includes valid data,
Then new data can not write, and only in the write-in data area for not writing data, could write new data.Work as write operation
After the completion of, the status information of write operation is returned to data handling system by drive module.So far, write operation is completed.
The main frame of data handling system is whenever a mobile memory is inserted, and data handling system can all be connect by bus
Mouth automatically detects the insertion of the storage device.Now data handling system will activate drive module, drive module quilt immediately
After activation, that is, perform initialization operation.During aforesaid operations, data processing unit can be received and handled from drive module
With the operation requests of data handling system, after drive module completes insertion process, that is, enter the wait shape for waiting operation requests
State.
When user extracts mobile memory from the EBI of data handling system, data processing unit is terminated immediately
Perform, and data handling system can then automatically detect the device and be extracted from data handling system, now, data processing
This event can be notified drive module by system immediately, and drive module is immediately performed relevant processing, and refer to after this notice is connected to
Show that data handling system eliminates removable memory corresponding with the storage device.
Above-described embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc. all should be included
Within protection scope of the present invention.
Claims (10)
1. a kind of disposable mobile memory, it is characterised in that including the interface unit being sequentially connected with, data processing unit and deposit
Storage unit, wherein,
Interface unit, for receiving needs storage and the data read and its instruction and being sent to data processing unit；
Data processing unit, for receiving data and instruction from interface unit and being required to deposit the data write-in of reception according to instruction
Storage unit, for obtaining data command from interface unit and being required to be read out memory cell according to instruction, and for inciting somebody to action
The data read from memory cell are sent to interface unit；
Memory cell, using disposable memory, the data write for data storage processing unit.
2. a kind of disposable mobile memory according to claim 1, it is characterised in that the interface unit is inserted by bus
Seat and the bus control unit composition being connected with bus hub, the bus control unit are used to press the data transmitted through interface unit
Bus protocol is handled and is transmitted.
3. a kind of disposable mobile memory according to claim 2, it is characterised in that the bus hub is provided with
USB interface, LAN interface, IEEE1394 interfaces, Thunderbolt interfaces, SD interface, CF interfaces, MMC interfaces, eSATA interfaces,
Any one or more interface in Lightning EBIs.
4. a kind of disposable mobile memory according to claim 1, it is characterised in that the data processing unit connection
There is the indicating member for indicating operating status.
5. a kind of disposable mobile memory according to claim 1, it is characterised in that also including write-protect module, institute
State write-protect module to be connected with data processing unit and/or memory cell, for controlling the data write-in to disposable memory.
6. a kind of disposable mobile memory according to claim 1, it is characterised in that also including power supply, the power supply
It is powered for mobile memory.
7. based on a kind of disposable mobile memory storage described in any one in claim 1~6 and the side of reading data
Method, it is characterised in that including data storage step and reading data step, wherein,
The data storage step comprises the following steps：
S1.1, the interface unit of mobile memory and the main frame of data handling system connected, complete mobile memory initialization；
S1.2, pending data processing system are received after the write command and write-in data of user's transmission, and write command is converted into data
The write operation instruction that processing unit understands and performed, and send write operation instruction and write-in data to interface unit, interface list
Write operation is instructed and write data again and sends data processing unit to by member；
S1.3, data processing unit are instructed according to the write operation received, and pending data processing system needs all data write
After the completion of, write-in result is sent to data handling system by interface unit；
The reading data step comprises the following steps：
S2.1, the interface unit of mobile memory and the main frame of data handling system connected, complete mobile memory initialization；
S2.2, pending data processing system are received after the reading instruction of user's transmission, and reading instruction is converted into data processing unit reason
The read operation for solving and performing instructs and sends interface unit to, and interface unit sends read operation instruction to data processing list again
Member；
S2.3, data processing unit are read out according to read operation instruction to memory cell, and the data of reading are defeated through interface unit
Go out into data handling system.
8. a kind of disposable mobile memory storage according to claim 7 and the method for reading data, it is characterised in that
The data volume of the data storage step write-in writes when big by the way of in batches, described to read the number that data step is read
Read according to when measuring big by the way of in batches.
9. a kind of disposable mobile memory storage according to claim 7 and the method for reading data, it is characterised in that
Also include write-protect step, the write-protect step includes two ways, and the concrete operation step of first way is：
Data handling system sends write-protect instruction to data processing unit, and data processing unit is turned off after receiving write-protect instruction
Function is allowed to close to the data write-in functions of memory cell, and/or by memory cell write-in；
The concrete operation step of the second way is：Using data processing unit the state notifying of write-protect module to data at
Reason system, is judged it by data handling system, so as to decide whether to carry out data storage step.
10. a kind of disposable mobile memory storage according to claim 7 and the method for reading data, its feature exist
In, in addition to destroy or erasing data step, the concrete operation step of the destruction or erasing step is：
Data handling system is sent to data processing unit destroys or erasing data command, and data processing unit receives destruction or wiped
Except after data command that memory cell is all or have the storage location of data division and be all set to " 1 " or " 0 " so that storage
Data can not be read or be recovered.
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| CN110490010A (en) * | 2019-08-14 | 2019-11-22 | 北京泰立鑫科技有限公司 | A kind of data auto-destruct method based on multiple-factor environment sensing |
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|---|---|---|---|---|
| CN110490010A (en) * | 2019-08-14 | 2019-11-22 | 北京泰立鑫科技有限公司 | A kind of data auto-destruct method based on multiple-factor environment sensing |
| CN110490010B (en) * | 2019-08-14 | 2021-07-09 | 北京泰立鑫科技有限公司 | Automatic data destruction method based on multi-factor environmental perception |
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