TWI423115B - Capacity integration apparatus and method for storing data and method for reading data thereof - Google Patents

Description

Capacity integration device and data storage method thereof and data reading method

The present invention relates to a data storage device, and more particularly to a capacity integration device for integrating a plurality of mobile storage device capacities, a data storage method thereof, and a data reading method.

With the development of storage technology and communication technology, the emergence of mobile storage devices has facilitated people's storage needs. For example, flash drives, SD cards (Secure Digital Memory Cards), xD-Picture memory cards, T-Flash cards, etc., these mobile storage devices can be combined with other serial busbar standards to use the same tandem bus standard. The device performs data transmission to realize the data mobility of people's storage. The existing serial bus standard mainly includes the universal serial bus standard (Universal Serial Bus) and the high performance serial bus standard (IEEE1394).

The following uses a flash disk using the universal serial bus standard as an example to describe the data communication between the flash disk and the computer. As shown in FIG. 1, a computer system having a USB flash drive, the computer 2 includes a USB host controller 21 and a connector 23. The flash drive 3 includes a USB controller 31, a connector 33, and a flash memory module 35. When the computer 2 is connected to the flash drive 3 via the cable 6, the USB host controller 21 detects the flash drive 3 by the connector 23 and starts supplying power to the flash drive 3, and then assigns an address to the flash drive 3. The flash drive 3 enters the address state. The USB host controller 21 reads the configuration information of the flash disk 3 through the connector 23, and distributes a configuration value to the flash disk 3 according to the configuration information, and the flash disk 3 enters the configuration state. The flash drive 3 can be used. When the computer 2 generates a read operation signal to the flash drive 3, the USB controller 31 of the flash drive 3 transmits its own information and the information of the flash memory module 35 to the computer 2 via the connector 33. Thus, the computer 2 can determine the storage capacity, remaining capacity, and related storage information of the flash drive 3.

The plug-and-play and easy operation mode of the USB flash drive provides great convenience for the operation of the user's mobile storage data, and the USB flash drive is also the preferred device for the user to store data by virtue of the above advantages. In order to meet the growing demand for mobile data storage, flash disk manufacturers continue to introduce large-capacity flash drives. In order to obtain more storage capacity of mobile data, users continue to purchase high-capacity flash drives with higher prices, and their previously purchased small-capacity flash drives are thrown aside, which not only wastes the storage resources of small-capacity flash drives. And it also increases the cost of users purchasing large-capacity flash drives.

In view of this, it is necessary to provide a capacity integration device that can integrate the storage capacity of a plurality of mobile storage devices into a whole to store data.

In addition, it is also necessary to provide a data storage method adapted to the capacity integration device.

In addition, it is also necessary to provide a method of reading data adapted to the capacity integration device.

A capacity integration device includes a connector, a control module, a detection module, a document management module and an expansion unit. The expansion unit is connected to the mobile storage device. After the connector is connected to the computer, the control module controls the detection module to detect the movement. And storing a related information of the device, and controlling the document management module to generate a document management table for managing the storage data stored by the mobile storage device according to the related information, and the control module receives the storage signal provided by the computer for storing the to-be-stored document, and controls the document The management module is based on the document management table. The to-be-stored document allocates a mobile storage device and sequentially stores the to-be-stored document into the allocated mobile storage device.

A data storage method includes the steps of: connecting a capacity integration device connected to a mobile storage device to a computer; and detecting information about a mobile storage device connected to the capacity integration device, the related information including an identification code and a storage capacity of the mobile storage device Value, remaining capacity value, remaining capacity logical start address, file name of the stored file, logical start address of the stored file; generating a document management table for managing the storage data of the mobile storage device according to the detected related information; receiving The storage signal provided by the computer for storing the to-be-stored document; the mobile storage device is sequentially allocated according to the document management table to store the to-be-stored document.

A data reading method includes the steps of: connecting a capacity integration device connected to a mobile storage device to a computer; receiving a read operation signal provided by the computer; and reading the stored information table in response to a read operation signal, the information table being used for management The mobile storage device reads the stored document to be stored; the read signal provided by the computer for selecting to read the to-be-stored document; and sequentially selecting the mobile storage device from the information table according to the read signal to read the to-be-stored document .

The above capacity integration device, data storage method and data reading method will move multiple mobile devices The capacity of the storage device is integrated into one, so that users can store or read data occupying a large storage space without purchasing a high-capacity large-capacity mobile storage device.

2‧‧‧ computer

21‧‧‧USB host controller

23‧‧‧USB connector

3‧‧‧ flash drive

31‧‧‧USB controller

33‧‧‧USB connector

35‧‧‧Flash Memory Module

4‧‧‧Capacity integration equipment

40‧‧‧Connector

41‧‧‧Control Module

42‧‧‧ storage unit

43‧‧‧Comparative Module

44‧‧‧Test module

45‧‧‧Document Management Module

47‧‧‧Extension unit

5‧‧‧ flash drive

6‧‧‧ cable

7‧‧‧Mobile storage devices

Figure 1 is a schematic diagram of a computer system with a USB flash drive.

2 is a schematic diagram of a module of a capacity integration device connected to a computer and a plurality of mobile storage devices according to a preferred embodiment.

FIG. 3 is a schematic diagram of functional modules of the capacity integration device shown in FIG. 2.

FIG. 4 is a schematic diagram of a document management table generated before the capacity integration device stores the to-be-stored document.

FIG. 5 is a schematic diagram of a information table generated before the capacity integration device stores the to-be-stored document.

FIG. 6 is a schematic diagram of a document management table updated after the capacity integration device stores the to-be-stored document.

FIG. 7 is a schematic diagram of a information table updated after the capacity integration device stores the to-be-stored document.

FIG. 8 is a flow chart of a data storage method adapted to a capacity integration device according to a preferred embodiment.

FIG. 9 is a flow chart of a data reading method adapted to a capacity integration device according to a preferred embodiment.

As shown in FIG. 2, it is a schematic diagram of a module in which the capacity integration device 4 of the preferred embodiment is connected to the computer 2 and a plurality of mobile storage devices 7. The capacity integration device 4 is connected to a plurality of mobile storage devices 7 by means of a cable 6. The mobile storage device 7 can be a flash disk, an SD card, an xD-Picture memory card, a T-Flash card using different serial busbar standards. Wait. After the capacity integration device 4 is connected to the computer 2 via the cable 6, the computer 2 supplies power to the capacity integration device 4 and the mobile storage device 7. The capacity integration device 4 starts detecting the relevant information of each mobile storage device 7. When the capacity integration device 4 receives the read operation signal of the computer 2, the capacity integration device 4 generates a document management table and an information table based on the related information. When the computer 2 needs to store the to-be-stored document, a storage signal is generated to the capacity integration device 4. After receiving the storage signal, the capacity integration device 4 allocates the mobile storage device 7 to the to-be-stored document by using the generated document management table, and sequentially stores the to-be-stored document into the allocated mobile storage device 7. The capacity integration device 4 updates the document management table and the information table after completing the storage operation. When the computer 2 needs to read the to-be-stored document stored in each of the mobile storage devices 7, a read signal is generated to the capacity integration device 4. After receiving the read signal, the capacity integration device 4 sequentially selects the mobile storage device 7 by using the saved information table to read the to-be-stored document and provide it to the computer 2.

Please refer to FIG. 3 , which is a schematic diagram of functional modules of the capacity integration device. The capacity integration device 4 includes a connector 40, a control module 41, a storage unit 42, a comparison module 43, a detection module 44, a document management module 45, and an expansion unit 47.

The control module 41 is connected to the connector 40, the storage unit 42, the comparison module 43, the detection module 44, and the document management module 45, respectively. The comparison module 43 is connected to the connector 40, the detection module 44, and the document management module 45, respectively. The document management module 45 is connected to the connector 40, the storage unit 42, the detection module 44, and the expansion unit 47, respectively. The expansion unit 47 is connected to the detection module 44.

In the embodiment, the mobile storage device connected to the expansion unit 48 is a flash drive, and the number of the flash disks is two, that is, the flash disk 3 and the flash disk 5, and the computer 2 is installed with a driver related to the capacity integration device 4 to cooperate with the driver. The following storage and read operations. After the capacity integration device 4 is connected to the computer 2 through the connector 40, the computer 2 is a capacity integration device 4 and The flash drive is powered. When the capacity integration device 4 receives the configuration value distributed by the computer 2, the control module 41 controls the detection module 44 to detect the related information of the flash disk 3 and the flash disk 5 connected to the extension unit 48, and transmits the detected related information to the document. Management module 45. The related information includes a flash disk identification code of each flash disk, a storage capacity value of each flash disk, a remaining capacity value of each flash disk, a logical starting address of a remaining capacity of each flash disk, a file name of a file stored in each flash disk, Each flash drive has stored the logical start address of the document. The document management module 45 calculates the total storage capacity value of the flash disk 3 and the flash disk 5, and the total value of the remaining storage capacity to provide to the computer 2.

When the user opens the drive letter, the computer 2 provides a read operation signal to the control module 41, and the control module 41 controls the document management module 45 to generate the capacity integration device generated by the capacity integration device as shown in FIG. 4 before storing the to-be-stored document according to the related information. Schematic diagram of the document management table. The document management table includes a flash disk identification code of each flash disk, a remaining capacity value of each flash disk, a file name stored in each flash disk, and a remaining capacity logical start address of each flash disk, and each flash memory in the document management table The order of information of the discs is determined by the difference in priority between the letters, digits and alphanumeric characters contained in their respective flash drive identification codes. In the present embodiment, the priority order of the letters specifying a to z is gradually increased, the priority order of the letters is higher than the digits, and the order of the numbers of 0 to 9 is gradually increased. The control module 41 controls the document management module 45 to generate a schematic diagram of the information table generated before the capacity integration device stores the to-be-stored document according to the related information. The information table includes a file name column for storing the flash disks, a document renaming column for each flash disk, a flash disk identification code column for each flash disk, and a logical start address column of the stored documents of each flash disk. In order to prevent confusion caused by the occurrence of file names of the same name in each flash disk, the document renaming column of each flash disk is added. The document management module 45 provides the information in the document renaming column in the information table to the computer 2 for display to the user.

When the computer 2 stores the document to be stored in the flash drive, a storage signal is generated and the storage signal is supplied to the control module 41. The control module 41 controls the document management module 45 to provide the document management table to the comparison module 42 according to the storage signal. The control module 41 also controls the comparison module 42 to obtain the capacity value of the document to be saved from the computer 2 according to the storage signal. After the comparison module 42 acquires the capacity value of the document to be saved, the remaining capacity value of each flash disk is sequentially selected from the received document management table and compared with the capacity value of the document to be saved. For example, first, the remaining capacity value of the flash disk 3 is compared with the capacity value of the document to be stored. If the remaining capacity value of the flash disk 3 is insufficient, the remaining capacity value of the flash disk 5 is again selected and compared with the capacity value of the document to be saved.

If the remaining capacity value is greater than the capacity value of the document to be saved, the comparison module 43 provides a first selection signal to the control module 41. The control module 41 controls the document management module 45 to receive the to-be-stored document provided by the computer 2 according to the first selection signal. The control module 41 further controls the document management module 45 to select a flash disk corresponding to the remaining capacity value according to the first selection signal, and generates a write command to the selected flash disk. The write command includes a remaining capacity logical start address corresponding to the flash disk and a capacity value of the file to be saved. The flash disk stores the to-be-stored document provided by the document management module 45 in the remaining space according to the received write command.

If the selected remaining capacity value is not greater than the capacity value of the document to be saved, the remaining capacity values of each flash disk are sequentially read from the file management table and accumulated to obtain the total remaining capacity, and the total remaining capacity obtained by each accumulation is used. The capacity value of the document to be saved is compared. For example, the remaining capacity values of the flash disk 3 and the flash disk 5 are sequentially read and accumulated to obtain a total remaining capacity value. If the total value of the remaining capacity is greater than the capacity value of the document to be saved, the comparison module 43 provides a second selection signal to the control module 41. The control module 41 controls the document management module 45 to receive the to-be-stored document provided by the computer 2 according to the second selection signal. Control module 41 is based on The second selection signal also controls the document management module 45 to sequentially select the flash disks that make up the total remaining capacity and generate a write command to the selected flash drive. The write command includes a remaining capacity logical start address corresponding to the flash disk, and a capacity value of the to-be-stored document, wherein the capacity value of the to-be-stored document is allocated by the document management module 45 according to the remaining capacity value of the flash disk. The flash disk stores the to-be-stored document allocated by the document management module 45 in the remaining space according to the received write command.

If the accumulated total value of the remaining capacity is not greater than the capacity value of the document to be saved, the comparison module 43 generates a prompt signal to the computer 2 to inform that the remaining capacity is insufficient, and the stored document cannot be stored.

After the document management module 45 completes the operation of storing the to-be-stored document, the document management module 45 updates the document management table and the information table according to the information of the to-be-stored document. Please refer to FIG. 6 to FIG. 7. FIG. 6 is a schematic diagram of the updated document management table. In the remaining capacity column, the remaining capacity values of the flash disks after storing the files to be saved are listed, and the file name column is added. The file name of the file to be saved, the remaining capacity logical start address column lists the current remaining capacity logical start address of each flash disk. 7 is an updated information table. The file name of the file to be saved in the document renaming column is the same as the file name of the file to be saved in the file name column, and the flash disk identification code order of each flash disk storing the document to be stored is It is recorded in the flash drive ID field. The logical start address sequence in which each of the flash disks stores the to-be-stored document is recorded in the storage file logical start address column. The document management module 45 transmits the updated information table and document management table to the storage unit 42 for storage.

After the capacity integration device 4 is disconnected from the computer 2, after the flash disk 3 and the flash disk 5 are separated from the capacity integration device 4, the user cannot change the flash disk in order to ensure that the stored document to be stored can be correctly read by the capacity integration device 4. 3 and the information of the to-be-stored document in the flash drive 5. The information of the to-be-stored document includes the file name and the file content.

When the capacity integration device 4 is reconnected to the computer 2, the computer provides a read operation signal to the control module 41, and the control module 41 controls the document management module 45 to read the stored document management table and the information table from the storage unit 42. The document management module 45 updates the document management table and the information table according to the related information provided by the detection module 44: that is, if the information in each field corresponding to each row in the document management table and the information table is If the related information is found, the information remains unchanged; if one of the information in each field corresponding to each row in the document management table and the information table is not found in the related information, then the deletion is deleted. The row in which the information is stored; in addition, when the to-be-stored document is stored in a plurality of flash disks, if the related information only includes information of a flash disk storing part of the content of the document to be stored, deleting the information table and The information corresponding to the document to be saved. The document management module 45 provides the information in the mid-file renaming column of the updated information table to the computer 2. The computer 2 selects the file name to be read and generates a read signal to the control module 41. The control module 41 controls the document management module 45 to sequentially select the corresponding flash disk from the updated information table according to the read signal, and generates a read command to the flash disk. The read command includes a file logical start address corresponding to the read file. The flash disk reads the document according to the received read command and provides the document to the document management module 45. The document management module 45 transmits the received document to the computer 2.

In order to clearly explain the process in which the capacity integration device 4 stores the to-be-stored document into the flash disk and reads the to-be-stored document from the flash disk, the file name of the file to be saved is C, and the total value of the remaining capacity is greater than the capacity of the file to be saved. The value is taken as an example for specific description: in this embodiment, the capacity value of the to-be-stored document is 26M, which is smaller than the remaining storage capacity value of the flash disk 3 with the flash disk identification code akwgi123 and the flash disk 5 with the flash disk identification code a2c45678. The total remaining capacity is 28M. The control module 41 controls the document management module 45 to sequentially select the flash disk 3 having the flash disk identification code akwgi123 from the generated document management table according to the read signal, and generates a write command to the selected flash disk 3. The write command includes and flash The remaining capacity logical start address Addr5 corresponding to the save disk 3, and the capacity value of the file to be saved, wherein the capacity value of the file to be saved is allocated by the document management module 45 according to the remaining capacity value of the flash disk 3. The flash disk 3 stores the to-be-stored document allocated by the document management module 45 in the remaining space according to the received write command. After the flash disk 3 completes the storage task, it sends a completion signal to the document management module 45. The document management module 45 selects the flash disk 5 having the flash disk identification code a2c45678 in accordance with the received completion signal sequence, and generates a write command to the selected flash disk 5. The write command includes a remaining capacity logical start address Addr6 corresponding to the flash disk 5 and a remaining capacity value of the document to be stored. The flash disk 3 stores the remaining documents to be stored in its remaining space in accordance with the received write command.

After the document management module 45 completes the operation of storing the document to be saved, the document management module 45 updates the document management table and the information table according to the information of the document to be saved. The updated document management table shown in FIG. 6 includes the remaining capacity value OM corresponding to the flash disk identification code aww123 and the flash disk identification code, the file names A1, A2, C, and the current remaining capacity logical start address Addr7, and the flash disk identification. The code a2c45678 and the remaining capacity value 2M corresponding to the flash disk identification code, the file names A1, B2, C, and the current remaining capacity logical start address Addr8. The updated information table shown in FIG. 7 includes file rename akwgi123.A1 and its corresponding flash disk identification code akwgi123, file name A1, storage file logical start address Addr1; document rename akwgi123.A2 and its corresponding Flash disk identification code awwgi123, file name A2, storage file logical start address Addr2; document rename a2c45678.A1 and its corresponding flash disk identification code a2c45678, file name A1, storage file logical start address Addr3; document rename a2c45678 .B2 and its corresponding flash disk identification code a2c45678, file name B2, storage file logical start address Addr4; document rename C and its corresponding flash disk identification code akwgi123 and a2c45678, file name C, storage file logical start address Addr5 and Addr6. The document management module 45 transmits the updated document management table and information table to the storage unit 42. save.

When the capacity integration device 4 is disconnected from the computer 2 and then connected again, the document management module 45 updates the stored document management table and the stored information table according to the related information provided by the detection module 44. The document management module 45 provides the updated name of each document in the updated information table to the computer 2. When the computer 2 reads the document named C, the control module 41 controls the document management module 45 to sequentially select the flash disk 3 and the flash disk 5 corresponding to the file name C from the information table, that is, first select the flash memory according to the sequence. The disk identification code is the flash disk 3 of akwgi123, and a read command is generated to the flash disk 3. The read command includes a document logical start address Addr5 of the document C corresponding to the flash drive 3. The flash drive 3 reads the document C based on the received read command and supplies it to the document management module 45. The document management module 45 provides the received document C to the computer 2. After the flash disk 3 of the flash disk identification code awwgi123 completes the reading task, it sends a completion signal to the document management module 45. The document management module 45 sequentially selects the flash disk 5 with the flash disk identification code a2c45678 according to the completion signal, and generates a read command to the flash disk 5. The read command includes the document logical start address Addr6 of the document C corresponding to the flash drive 5. The flash drive 5 reads the document C based on the received read command and supplies it to the document management module 45. The document management module 45 provides the received document C to the computer 2 to complete the reading of the document to be saved.

As shown in FIG. 8, it is a data storage method suitable for a capacity integration device according to a preferred embodiment, and includes the following steps:

Step S802, connecting with a computer. The capacity integration device 4 is connected to the computer 2 via a connector 42.

Step S804, detecting related information of the flash drive. When the capacity integration device 4 receives the configuration value distributed by the computer 2, the control module 41 controls the detection module 44 to detect the related information of the flash disk 3 connected to the extension unit 48, and transmits the detected related information to the document. Management module 45.

Step S806, generating a document management table and an information table according to the read operation signal. When the computer 2 provides a read operation signal to the control module 41, the control module 41 controls the document management module 45 to generate a document management table and an information table based on the related information.

Step S808, receiving a storage signal. When the computer 2 stores the document to be stored, a storage signal is generated and the storage signal is supplied to the control module 41. The control module 41 controls the document management module 45 to provide the document management table to the comparison module 42 according to the storage signal.

Step S810, obtaining a capacity value of the document to be saved. The control module 41 also controls the comparison module 42 to acquire the capacity value of the document to be saved according to the storage signal.

In step S812, it is determined whether the capacity value is smaller than the remaining capacity value. After the comparison module 42 obtains the capacity value of the document to be saved, the remaining capacity value of a flash disk is sequentially selected from the received document management table and compared with the capacity value of the document to be saved.

Step S814, selecting a flash disk corresponding to the remaining capacity value to store the to-be-stored document. If the selected remaining capacity value is greater than the capacity value of the document to be saved, the comparison module 43 provides a first selection signal to the control module 41. The control module 41 controls the document management module 45 to receive the to-be-stored document provided by the computer 2 according to the first selection signal. The control module 41 further controls the document management module 45 to select a flash disk corresponding to the remaining capacity value according to the first selection signal, and generates a write command to the selected flash disk. The flash disk stores the to-be-stored document provided by the document management module 45 in the remaining space according to the received write command.

In step S816, the document management table and the information table are updated and stored. After the document management module 45 completes the operation of storing the to-be-stored document, the document management module 45 updates the document management table and the information table according to the information of the to-be-stored document. The document management module 45 transmits the information table and the document management table to the storage unit 42 for storage.

In step S818, it is determined whether the capacity value is smaller than the total remaining capacity. If the selected remaining capacity value is not greater than the capacity value of the document to be saved, the remaining capacity value is sequentially read from the document management table and gradually accumulated to obtain the total remaining capacity value, and the total remaining capacity value obtained by each accumulation is used. Compare the capacity values of the saved documents.

Step S820, selecting a flash disk corresponding to the remaining capacity value of the accumulated remaining capacity value to store the to-be-stored document. If the total value of the remaining capacity is greater than the capacity value of the document to be saved, the comparison module 43 provides a second selection signal to the control module 41. The control module 41 controls the document management module 45 to receive the to-be-stored document provided by the computer 2 according to the second selection signal. The control module 41 further controls the document management module 45 to sequentially select the flash disks constituting the total remaining capacity according to the second selection signal, and generates a write command to the selected flash disk. The flash disk stores the to-be-stored document allocated by the document management module 45 in the remaining space according to the received write command. Then jump to step S816 to execute.

In step S822, the total remaining capacity is insufficient. If the total value of the remaining capacity obtained by the accumulation is not greater than the capacity value of the document to be stored, the comparison module 43 generates a prompt signal to the computer 2 to inform that the remaining capacity is insufficient.

As shown in FIG. 9 , it is a data reading method adapted to a capacity integration device according to a preferred embodiment, and includes the following steps:

Step S902, connecting with a computer. The capacity integration device 4 is connected to the computer 2 via a connector 42.

Step S904, detecting related information of the flash drive. When the capacity integration device 4 receives the address assigned by the computer 2, the control module 41 controls the detection module 44 to detect the related information of the flash disk 3 connected to the extension unit 48, and transmits the detected related information to the document management module 45. .

Step S906, updating the stored document management table and the information table according to the detected information. The computer 2 provides a read operation signal to the control module 41. The control module 41 controls the document management module 45 to read the stored document management table and information table from the storage unit 42. The document management module 45 updates the document management table and the information table according to the related information provided by the detection module 44: that is, if the information in each column corresponding to each row in the document management table and the information table is available If the related information is found, the information remains unchanged; if one of the information in each field corresponding to each row in the document management table and the information table is not found in the related information, the deletion is deleted. In the case where the information to be stored is stored in a plurality of flash disks, when the related information includes only the information of the flash disk storing part of the content of the document to be stored, deleting the information table and waiting for the information Save the information corresponding to the document. The document management module 45 provides the information in the document renaming column in the updated information table to the computer 2.

At step S908, a read signal is received. The computer 2 selects the file name to be read and generates a read signal to the control module 41.

Step S910, selecting a corresponding flash disk from the updated information table to read the to-be-stored document. The control module 41 controls the document management module 45 to sequentially select the corresponding flash disk from the updated information table according to the read signal, and generates a read command to the flash disk. The read command includes a logical start address of the document corresponding to the read document. The flash disk reads the document according to the received read command and provides the document to the document management module 45. The document management module 45 transmits the received document to the computer 2.

The document management module 45 generates a document management table and an information table according to the related information provided by the detection module 44 by using the above-mentioned capacity integration device, the data storage method and the data reading method adapted to the capacity integration device. The document management module 45 sequentially selects the flash disk 3 corresponding to the flash disk identification code from the document management table to store the occupied storage provided by the computer 2. A document to be saved with a large capacity value. The document management module 45 updates the document management table and the information table after saving the storage operation and saves it to the storage unit 42. When the computer 2 needs to read the stored document to be stored from the flash disk 3, the document management module 45 sequentially selects the flash disk 3 corresponding to the flash disk identification code from the saved information table to provide the file to be saved to the computer 2.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above is only a preferred embodiment of the present invention, and those skilled in the art will be able to include equivalent modifications or variations in the spirit of the present invention.

2‧‧‧ computer

3‧‧‧ flash drive

4‧‧‧Capacity integration equipment

40‧‧‧Connector

41‧‧‧Control Module

42‧‧‧ storage unit

43‧‧‧Comparative Module

44‧‧‧Test module

45‧‧‧Document Management Module

47‧‧‧Extension unit

5‧‧‧ flash drive

Claims (15)

A capacity integration system includes a connector, a control module, a detection module, a document management module and an expansion unit, wherein the expansion unit is connected to the mobile storage device, the connector is connected to the computer, and the control module controls the detection module Detecting related information of the mobile storage device, wherein the related information includes an identification code of the mobile storage device, a storage capacity value, a remaining capacity value, a remaining capacity logical start address, a file name of the stored document, and a logical start address of the stored document. The control module further controls the document management module to generate a document management table for managing the storage data stored by the mobile storage device according to the related information, where the control module receives the storage signal provided by the computer for storing the to-be-stored document. The control document management module allocates a mobile storage device to the to-be-stored document according to the document management table, and stores the to-be-stored document in the allocated mobile storage device. The capacity integration system of claim 1, wherein the document management table includes the following fields: a file name, a remaining capacity value, a mobile storage device identifier, and a remaining capacity logical start address. The capacity integration system of claim 2, wherein the capacity integration system further comprises a comparison module, wherein the control module controls the comparison module to obtain a capacity value of the to-be-stored document from the computer according to the storage signal, and controls the comparison mode. The group compares the capacity value of the to-be-stored document with the size of the remaining capacity value corresponding to the mobile storage device in the document management table. If the remaining capacity value is greater than the capacity value of the to-be-stored document, the control module controls the document management module from the document. The mobile storage device corresponding to the remaining capacity value is selected in the management table, and the control module further provides a write command to the mobile storage device to store the to-be-stored document. The capacity integration system of claim 3, wherein if the remaining capacity value is not greater than a capacity value of the to-be-stored document, the comparison module compares the capacity value of the to-be-stored document with the remaining capacity value in the accumulated document management table. The total value of the remaining capacity, if the total value of the remaining capacity is greater than the remaining value The capacity value of the document, the control module controls the document management module to sequentially select, from the document management table, the mobile storage device corresponding to the remaining capacity value constituting the total value of the remaining capacity, and provides a write command to the mobile storage device to store the to-be-stored Documentation. The capacity integration system of claim 1, wherein the capacity integration system further comprises a storage unit, the control module controls the document management module to generate a management storage device for reading the standby according to the related information. The information management table storing the document, after the operation of storing the to-be-stored document is completed, the document management module updates the information table and stores the information table in the storage unit, and the control module controls the file management module when receiving the read signal The mobile storage device is selected in accordance with the stored information table order to read the to-be-stored document. The capacity integration system of claim 5, wherein the information table includes the following fields: a file name, a document renaming, a mobile storage device identifier, and a logical start address of the stored document. For example, in the capacity integration system described in claim 6, wherein the capacity integration system is disconnected from the computer and reconnected, the control module controls the document management module to read the stored information from the storage unit according to the read operation signal provided by the computer. The document management module updates the information table according to the relevant information provided by the detection module, and the document management module provides the information in the document renaming column of the updated information table to the computer, and the control module reads the data according to the computer. a read signal generated by the file to be saved, the control document management module selects a mobile storage device storing the to-be-stored document from the updated information table, and provides a read command to the mobile storage device, the mobile storage device according to the mobile storage device The read command reads the to-be-stored document, and provides the to-be-stored document to the document management module, and the document management module transmits the received pending document to the computer. A data storage method includes the steps of: connecting a capacity integration system of the connected mobile storage device, such as claim 1, to a computer; and detecting information about the mobile storage device connected to the capacity integration system, wherein the related information includes mobile storage Device identification code, storage capacity value, remaining capacity value, remaining capacity logic a start address, a file name of the stored file, a logical start address of the stored file; a document management table for managing the storage data stored by the mobile storage device according to the detected related information; and the receiving computer provides the file for storing the file to be saved a storage signal; the mobile storage device is allocated according to the document management table to store the to-be-stored document. The data storage method of claim 8, wherein the document management table includes the following fields: a file name, a remaining capacity value, a mobile storage device identification code, and a remaining capacity logical start address. The data storage method of claim 9, further comprising the steps of: obtaining a capacity value of the to-be-stored document; determining whether the remaining capacity value in the document management table is greater than a capacity value of the to-be-stored document; if the remaining capacity value is greater than For the capacity value of the document to be saved, the mobile storage device corresponding to the remaining capacity value is selected from the document management table to store the to-be-stored document. The method for storing data according to claim 10, further comprising the step of: if the remaining capacity value is not greater than the capacity value of the document to be stored, determining whether the total remaining capacity value obtained by accumulating the remaining capacity value in the document management table is greater than The capacity value of the to-be-stored document; if the total value of the remaining capacity is greater than the capacity value of the document to be stored, the mobile storage device corresponding to the remaining capacity value constituting the total value of the remaining capacity is sequentially selected from the document management table to store the to-be-stored document. The method for storing data according to claim 11 further includes the following steps: if the total value of the remaining capacity is not greater than the capacity value of the document to be saved, the computer storage space is insufficient. A data reading method includes the steps of: connecting a capacity integration system of the connected mobile storage device, such as claim 1, to a computer; receiving a read operation signal provided by the computer; and reading the stored information table in response to the read operation signal, Information sheet for managing mobile storage devices Reading the stored document to be stored; receiving a read signal provided by the computer for selecting to read the file to be stored; and selecting the mobile storage device from the information table according to the read signal to read the to-be-stored document. The method for reading data according to claim 13 , wherein the information table comprises the following fields: a file name, a document renaming, a mobile storage device identifier, and a logical start address of the stored document. The method for reading data according to claim 14, further comprising the steps of: detecting information about the mobile storage device connected to the capacity integration device, wherein the related information includes an identification code of the mobile storage device, a storage capacity value, Remaining capacity value, remaining capacity logical start address, file name of the stored document, logical start address of the stored document; updating the information table according to the detected related information; and sequentially selecting the mobile storage from the updated information table The device reads the pending document.