CN116841474B - Automatic switching method and system based on mobile hard disk and network storage dual modes - Google Patents
Automatic switching method and system based on mobile hard disk and network storage dual modes Download PDFInfo
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/061—Improving I/O performance
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/10—Program control for peripheral devices
- G06F13/12—Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor
- G06F13/124—Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor where hardware is a sequential transfer control unit, e.g. microprocessor, peripheral processor or state-machine
- G06F13/128—Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor where hardware is a sequential transfer control unit, e.g. microprocessor, peripheral processor or state-machine for dedicated transfers to a network
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0629—Configuration or reconfiguration of storage systems
- G06F3/0635—Configuration or reconfiguration of storage systems by changing the path, e.g. traffic rerouting, path reconfiguration
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
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Abstract
The invention discloses a mobile hard disk+network storage dual-mode-based automatic switching method and a system, which are used for monitoring whether a USB port of a kernel layer of hardware storage equipment is connected or not in real time when the hardware storage equipment is electrified and in a networking state; when the hardware storage device is not connected with the computer through the USB port, a user can be connected to the hardware storage device through a network and perform uploading, downloading, reading and writing operations of data; if the currently connected USB port is a computer, switching the hardware storage device into a mobile hard disk working mode; closing network connection of the hardware storage device, simulating the hardware storage device into a USB mobile hard disk and informing the computer; automatically hiding a key directory in an operating system of the hardware storage device; and reading and writing the data in the hardware storage device on the computer. The invention has high degree of automation and convenient use; the working efficiency is improved, and the cost expenditure is reduced; avoiding misoperation of users and improving the safety and reliability of the system.
Description
Technical Field
The invention relates to the technical field of storage control, and particularly discloses an automatic switching method and system based on a mobile hard disk and a network storage dual mode.
Background
The existing data localization and storage scene is mainly realized by two modes of external mobile hard disks (such as U disk and mobile hard disk) and network storage. The mobile hard disk mainly adopts USB or IEEE1394 interface, can be plugged in or pulled out at any time, is small and portable, and performs data transmission with the system at a higher speed. The network storage (NAS, network Attached Storage: network attached storage) is simply a device connected to a network and having a data storage function, and is also called "network storage".
Two solutions for current data localization: external mobile hard disk and network storage can all solve the requirement that the user holds data in the medium of oneself grasp, but all have certain not enough:
1. the mobile hard disk has the advantages that: the capacity is large; the compatibility is good, and plug and play is realized; the speed is high; the volume and the mass are small; is safe and reliable. The disadvantages of the mobile hard disk are: cannot be accessed through a network; data cannot be shared; must be carried around.
2. The network storage has the advantages that: network access and remote connection; easy to deploy; and (5) data sharing. The disadvantages of network storage are: offline (off-line) cannot be used; limiting the transmission speed by the network bandwidth; the cost is high.
In summary, the existing data storage method is difficult to satisfy the data read-write requirements of the user in the two scenarios of direct connection of the USB and remote connection of the network. Therefore, one technical problem that needs to be solved urgently at present is: how to combine the mobile hard disk mode and the network storage mode and automatically switch, and simultaneously meet the read-write requirement of the USB direct connection and the network remote connection on the data in the same storage device.
The patent with application number 201110424622.3 similar to the above is solved by providing a program for judging through the network connection state and determining whether the data is stored on the local hard disk or the network hard disk according to the judgment, namely, if the network is disconnected, the data is stored on the local hard disk, if the network is connected, the data is stored in the network storage, and more application scenes are the application of the local database and the cloud database. The patent cannot solve the problem that an external data storage state can give consideration to double working scenes and switching of mobile hard disk and network storage, and the local storage of the patent refers to a local hard disk of an operation end (such as a computer or a server) and cannot meet the 'network disconnection or online' demand of 'instant use' of data.
Therefore, the above-mentioned drawbacks of the existing data localization and preservation method are a technical problem that is needed at present.
Disclosure of Invention
The invention provides an automatic switching method and system based on a mobile hard disk and network storage dual mode, and aims to solve the defects in the existing data localization storage method.
One aspect of the invention relates to an automatic switching method based on a mobile hard disk and a network storage dual mode, which comprises the following steps:
when the hardware storage device is electrified and networked, the hardware storage device operates in a network storage mode in a USB unconnected state, and monitors whether a kernel layer USB port of the hardware storage device is connected or not;
when the hardware storage device is not connected with the computer through the USB port, a user can be connected to the hardware storage device through a network and perform uploading, downloading, reading and writing operations of data;
if the currently connected USB port is a computer, switching the hardware storage device into a mobile hard disk working mode; the mobile hard disk operation mode is to simulate the system into a USB mobile hard disk, a computer operates a file system in the hardware storage device according to a USB flash disk mode, and when the mobile hard disk operation mode is adopted, the hardware storage device is disconnected from a network, can only be operated on the computer through USB connection, and cannot be accessed remotely through the network mode;
Closing network connection of the hardware storage device, simulating the hardware storage device into a USB mobile hard disk and informing the computer;
automatically hiding a key directory in an operating system of the hardware storage device;
and reading and writing the data in the hardware storage device on the computer.
Further, when the hardware storage device is powered on and networked, the method operates in a network storage mode in a USB unconnected state, and after the step of monitoring whether the USB port of the kernel layer of the hardware storage device is connected, the method further includes:
if the current USB port is not connected or the connected peripheral is not a computer, switching the hardware storage device into a network storage working mode; the network storage working mode is that the hardware storage equipment works in a NAS mode, access and read-write control of a file directory and a file layer are carried out according to a logged account, and when the network storage working mode is adopted, a client can remotely access data in the hardware storage equipment through a network;
the hardware storage device informs the matched client program, sets the self state to be an on-line state, and allows the matched client to remotely access data in the hardware storage device through a network.
Further, the step of informing the supporting client program by the hardware storage device, setting the self state to be an on-line state, and allowing the supporting client to remotely access the data in the hardware storage device through the network comprises the following steps:
The hardware storage device identifies whether external equipment is accessed;
if the hardware storage device recognizes that external equipment is connected, a netlink of the kernel layer sends a notification to inform the application layer that the current USB interface is connected with the external equipment;
the application layer of the hardware storage device communicates with the external device, and when the external device is identified as a USB flash disk, the external USB flash disk is used as an external headquarter storage space for mounting;
the client continues to remotely access the hardware storage device through the network and accesses the data in the U disk.
Further, the step of reading and writing the data in the hardware storage device on the computer includes:
if the USB gadget driver of the kernel layer of the hardware storage device recognizes that the USB hardware interface is in a power-off state, notifying an application layer through a netlink mechanism;
and the application layer of the hardware storage device disables the USB storage mode, automatically switches the working mode of the operating system of the hardware storage device into the network storage mode, starts network service, and completes authentication with the Internet cloud and online flow.
Further, the portion of the critical directories include a system directory, a configuration directory, and/or a drive directory.
Another aspect of the present invention relates to an automatic switching system based on a mobile hard disk+network storage dual mode, comprising:
The monitoring module is used for monitoring whether the kernel layer USB port of the hardware storage device is connected or not when the hardware storage device is electrified and networked;
the judging module is used for connecting the hardware storage device to the computer through a network and carrying out uploading, downloading, reading and writing operations of data when the hardware storage device is not connected to the computer through a USB port;
the first switching module is used for switching the hardware storage device into a mobile hard disk working mode if the currently connected USB port is a computer; the mobile hard disk operation mode is to simulate the system into a USB mobile hard disk, a computer operates a file system in the hardware storage device according to a USB flash disk mode, and when the mobile hard disk operation mode is adopted, the hardware storage device is disconnected from a network, can only be operated on the computer through USB connection, and cannot be accessed remotely through the network mode;
the closing module is used for closing the network connection of the hardware storage device, simulating the hardware storage device into a USB mobile hard disk and informing the computer;
the hiding module is used for automatically hiding the internal key catalogue in the operating system of the hardware storage device;
and the read-write module is used for reading and writing the data in the hardware storage device on the computer.
Further, the automatic switching system based on the mobile hard disk and the network storage dual mode further comprises:
The second switching module is used for switching the hardware storage device into a network storage working mode if the current USB port is not connected or the connected peripheral is not a computer; the network storage working mode is that the hardware storage equipment works in a NAS mode, access and read-write control of a file directory and a file layer are carried out according to a logged account, and when the network storage working mode is adopted, a client can remotely access data in the hardware storage equipment through a network;
and the access module is used for informing the matched client program by the hardware storage device, setting the self state to be an on-line state, and allowing the matched client to remotely access the data in the hardware storage device through a network.
Further, the automatic switching system based on the mobile hard disk and the network storage dual mode further comprises:
the identification unit is used for identifying whether external equipment is accessed by the hardware storage equipment;
the notification unit is used for sending a notification to the netlink of the kernel layer to inform the application layer that the external device is connected with the current USB interface if the external device is identified to be accessed by the hardware storage device;
the mounting unit is used for communicating the application layer of the hardware storage device with the external device, and when the external device is identified as a USB flash disk, the external USB flash disk is used as an external headquarter storage space for mounting;
And the access unit is used for enabling the client to continue to remotely access the hardware storage device through the network and access the data in the U disk.
Further, the automatic switching system based on the mobile hard disk and the network storage dual mode further comprises:
the notification module is used for notifying an application layer through a netlink mechanism if the USB gadget driver of the kernel layer of the hardware storage device recognizes that the USB hardware interface is in a power-off state;
and the third switching module is used for disabling the USB storage mode by the application layer of the hardware storage device, automatically switching the working mode of the operating system of the hardware storage device into the network storage mode, starting the network service and finishing the authentication and online processes of the cloud of the Internet.
Further, the portion of the critical directories include a system directory, a configuration directory, and/or a drive directory.
The beneficial effects obtained by the invention are as follows:
the invention provides a mobile hard disk + network storage dual-mode-based automatic switching method and system, which are characterized in that when a hardware storage device is electrified and networked, the network storage mode is defaulted to work and operate, and whether a USB port of a kernel layer of the hardware storage device is connected or not is monitored; when the hardware storage device is not connected with the computer through the USB port, a user can be connected to the hardware storage device through a network and perform uploading, downloading, reading and writing operations of data; if the currently connected USB port is a computer, switching the hardware storage device into a mobile hard disk working mode; closing network connection of the hardware storage device, simulating the hardware storage device into a USB mobile hard disk and informing the computer; automatically hiding a key directory in an operating system of the hardware storage device; and reading and writing the data in the hardware storage device on the computer. The automatic switching method and system based on the mobile hard disk and the network storage dual mode provided by the invention have the following advantages:
1. The mobile hard disk is used as an external hard disk memory of a computer, and the data read-write between the mobile hard disk and the computer must be realized through the physical data line connection of a USB or IEEE1394 interface, which means that if a user needs to use the data in the mobile hard disk anytime and anywhere, the user must carry the mobile hard disk and a matched data line, and the limited use condition exists. By means of automatic switching, when the hardware storage device is used for networking, the interactive operation of the mobile hard disk with the data stored in the device can be realized through the network even if a user does not carry the device, and the problems that the existing mobile hard disk is required to be connected with a computer for operation, the use scene is single and the networking access requirement cannot be met are solved.
2. The existing network storage products are all devices which are connected to a network and have a data storage function, so that the devices are also called as network storage or NAS, namely, the interaction between a user and the network storage products is realized through the network, and once the network storage products are disconnected, the data stored in the network storage products cannot be read by the user. If the user needs to read the data in the network storage product which is disconnected from the network under the condition, the only method is to disassemble the hard disk in the network storage into the hard disk box and then access the hard disk box into the computer for accessing, but the phenomenon that the computer cannot identify the hard disk format and the data cannot be acquired still occurs under the condition. The invention adopts the hardware storage equipment, solves the problem that the network disconnection condition can not be used, and even if the network is disconnected, a user can normally access the data stored in the equipment by only inserting the equipment into a computer through USB, thereby greatly facilitating the use of the user.
3. Through automatic switching of the double modes, a new scheme for data storage, management and use is provided for users, and different application scenes in the big data age can be met.
4. The automatic identification and intelligent work switching modes of the double modes also provide new product forms and ideas for the external storage market.
5. In order to avoid misoperation of a user, when the hardware storage device enters a working mode of the mobile hard disk, key catalogs in an operating system of the hardware storage device are automatically hidden, and system safety and reliability are improved.
Drawings
Fig. 1 is a schematic flow chart of a first embodiment of an automatic switching method based on a mobile hard disk+network storage dual mode provided by the invention;
fig. 2 is a schematic flow chart of a second embodiment of an automatic switching method based on a mobile hard disk+network storage dual mode according to the present invention;
fig. 3 is a schematic flow chart of a third embodiment of an automatic switching method based on a mobile hard disk+network storage dual mode according to the present invention;
fig. 4 is a schematic flow chart of a fourth embodiment of an automatic switching method based on a mobile hard disk+network storage dual mode according to the present invention;
FIG. 5 is a functional block diagram of a first embodiment of an automatic switching system based on a mobile hard disk+network storage dual mode according to the present invention;
FIG. 6 is a functional block diagram of a second embodiment of an automatic switching system based on a mobile hard disk+network storage dual mode according to the present invention;
FIG. 7 is a functional block diagram of a third embodiment of an automatic switching system based on a mobile hard disk+network storage dual mode according to the present invention;
fig. 8 is a functional block diagram of a fourth embodiment of an automatic switching system based on a mobile hard disk+network storage dual mode according to the present invention.
Reference numerals illustrate:
10. a monitoring module; 20. a judging module; 30. a first switching module; 40. closing the module; 50. a hiding module; 60. a read-write module; 70. a second switching module; 80. an access module; 81. an identification unit; 82. a notification unit; 83. a mounting unit; 84. an access unit; 91. a notification module; 92. and a third switching module.
Detailed Description
In order to better understand the above technical solutions, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and fig. 2, a first embodiment of the present invention proposes an automatic switching method based on a mobile hard disk+network storage dual mode, including the following steps:
and step S100, monitoring whether a kernel layer USB port of the hardware storage device is connected or not when the hardware storage device is electrified and networked.
And electrifying and networking the hardware storage device, and monitoring whether the USB port of the kernel layer of the hardware storage device is connected or not by the current hardware storage device. In this embodiment, the hardware storage device mainly includes the following functions:
1. USB flash disk simulation of Linux operating system: the Linux device is allowed to operate in the form of a USB slave (slave) through the USB gadget driver of the Linux kernel, which means that it can communicate with another host device and be identified as one USB device.
2. Identifying the working states of a mobile hard disk and network storage: the identification is carried out from the kernel layer and the application layer of the linux operating system using the method, so that the accurate judgment of the current connection state of the hardware storage device using the method is ensured.
3. The kernel layer checks whether the current device is connected to other devices (such as a computer, a USB flash disk, etc.) through a USB driver.
4. The application layer judges the device connected with the current USB after receiving the netlink notification from the kernel layer, and determines whether the device is a connected computer or a USB flash disk currently through communication with the external device.
5. Double operation mode:
in the working mode of the mobile hard disk, the linux is simulated into a USB mobile hard disk through the embodiment, so that windows or macOS can operate a file system in the hardware storage device using the embodiment according to the mode of the USB. When the mobile hard disk is in a working mode, the hardware storage device can be disconnected from the network, and a user can only operate on the computer through USB connection and cannot remotely access the mobile hard disk through the network.
The network storage working mode is that through the embodiment, the used hardware storage device works in a NAS mode, and access and read-write control of a file directory and a file layer are performed according to the logged account. In the network storage mode of operation, a user may remotely access data in the hardware storage device via the network.
The switching of the two modes is determined by the functions of 'mobile hard disk and network storage working state identification', notification information from the kernel layer of the hardware storage device is monitored at all times after the hardware storage device is started and networked, when the USB port of the device is connected to a computer, the device is automatically switched to a 'mobile hard disk working mode', and when the USB port of the device is not connected to the computer, the device is operated in a 'network storage working mode'.
And step 200, when the hardware storage device is not connected with the computer through the USB port, connecting the hardware storage device to the hardware storage device through a network and performing uploading, downloading, reading and writing operations of data.
When the hardware storage device is not connected with the computer through the USB port, a user can be connected to the hardware storage device through a network and perform read-write operations such as uploading and downloading of data.
Step S300, if the currently connected USB port is a computer, switching the hardware storage device into a mobile hard disk working mode; the mobile hard disk operation mode is to simulate the system into a USB mobile hard disk, the computer operates a file system in the hardware storage device according to a USB flash disk mode, and when the mobile hard disk operation mode is adopted, the hardware storage device is disconnected from a network, and can only be operated on the computer through USB connection and cannot be accessed remotely through the network mode.
And if the hardware storage equipment identifies that the currently connected USB port is a computer, switching the working mode of the hardware storage equipment into a mobile hard disk working mode.
And step 400, closing network connection of the hardware storage device, simulating the hardware storage device into a USB mobile hard disk, and informing the computer.
And when the mobile hard disk is in a working mode, the hardware storage device closes network connection, simulates the linux into a USB mobile hard disk and informs the computer.
And S500, automatically hiding the internal key catalogue in the operating system of the hardware storage device.
The hardware storage device automatically hides the critical directories within the operating system. The internal portion key directory includes a system directory, a configuration directory, and/or a drive directory, etc.
Step S600, data in the hardware storage device is read and written on a computer.
When the mobile hard disk is in the working mode, a user performs read-write operation on data in the hardware storage device on the computer.
Compared with the prior art, the automatic switching method based on the mobile hard disk and the network storage double modes monitors whether the kernel layer USB port of the hardware storage device is connected or not when the hardware storage device is electrified and networked; when the hardware storage device is not connected with the computer through the USB port, a user can be connected to the hardware storage device through a network and perform uploading, downloading, reading and writing operations of data; if the currently connected USB port is a computer, switching the hardware storage device into a mobile hard disk working mode; closing network connection of the hardware storage device, simulating the hardware storage device into a USB mobile hard disk and informing the computer; automatically hiding a key directory in an operating system of the hardware storage device; and reading and writing the data in the hardware storage device on the computer. The automatic switching method based on the mobile hard disk and the network storage dual mode is high in automation degree and convenient to use; the working efficiency is improved, and the cost expenditure is reduced; avoiding misoperation of users and improving the safety and reliability of the system.
Further, please refer to fig. 2, fig. 2 is a flow chart of a second embodiment of the automatic switching method based on the mobile hard disk+network storage dual mode provided by the present invention, and based on the first embodiment, the automatic switching method based on the mobile hard disk+network storage dual mode provided by the present embodiment further includes, after step S200:
step S700, if the current USB port is not connected or the connected peripheral is not a computer, switching the hardware storage device into a network storage working mode; the network storage working mode is that the hardware storage device works in a NAS mode, access and read-write control of a file directory and a file layer are carried out according to a logged account, and when the network storage working mode is adopted, a client can remotely access data in the hardware storage device through a network.
And if the hardware storage equipment identifies that the currently connected USB port is not a computer, switching the working mode of the hardware storage equipment into a network storage working mode.
Step S800, the hardware storage device informs the matched client program, sets the self state to be an on-line state, and allows the matched client to remotely access data in the hardware storage device through a network.
And when the network storage working mode is adopted, the hardware storage device informs the matched client program, the self state is set to be an on-line state, and the matched client is allowed to remotely access data in the hardware storage device through the network.
Compared with the prior art, the automatic switching method based on the mobile hard disk and the network storage double modes provided by the embodiment has the advantages that if the current connected USB port is identified not to be a computer, the hardware storage device is switched to the network storage working mode; the network storage working mode is that the hardware storage equipment works in a NAS mode, access and read-write control of a file directory and a file layer are carried out according to a logged account, and when the network storage working mode is adopted, a client can remotely access data in the hardware storage equipment through a network; the hardware storage device informs the matched client program, sets the self state to be an on-line state, and allows the matched client to remotely access data in the hardware storage device through a network. The automatic switching method based on the mobile hard disk and the network storage dual mode is high in automation degree and convenient to use; the working efficiency is improved, and the cost expenditure is reduced; avoiding misoperation of users and improving the safety and reliability of the system.
Preferably, referring to fig. 3, fig. 3 is a flow chart of a third embodiment of the automatic switching method based on the mobile hard disk+network storage dual mode provided by the present invention, and on the basis of the second embodiment, the automatic switching method based on the mobile hard disk+network storage dual mode provided by the present embodiment further includes, after step S800:
Step 810, the hardware storage device identifies whether an external device is accessed.
In step S820, if the hardware storage device recognizes that there is an external device connected, the netlink of the kernel layer sends a notification to inform the application layer that the current USB interface is connected with the external device.
In step S830, the application layer of the hardware storage device communicates with the external device, and when it is identified that the external device is a usb disk, the external usb disk is used as an external headquarter storage space to mount.
In step S840, the client continues to remotely access the hardware storage device via the network and accesses the data in the usb disk.
Compared with the prior art, the automatic switching method based on the mobile hard disk and the network storage double modes provided by the embodiment has the advantages that whether external equipment is accessed or not is identified through the hardware storage equipment; when the hardware storage device recognizes that external equipment is connected, a netlink of the kernel layer sends a notification to inform the application layer that the current USB interface is connected with the external equipment; the application layer of the hardware storage device communicates with the external device, and when the external device is identified as a USB flash disk, the external USB flash disk is used as an external headquarter storage space for mounting; the client continues to remotely access the hardware storage device through the network and accesses the data in the U disk. The automatic switching method based on the mobile hard disk and the network storage dual mode is high in automation degree and convenient to use; the working efficiency is improved, and the cost expenditure is reduced; avoiding misoperation of users and improving the safety and reliability of the system.
Further, please refer to fig. 4, fig. 4 is a flow chart of a fourth embodiment of the automatic switching method based on the mobile hard disk+network storage dual mode provided by the present invention, and based on the first embodiment, the automatic switching method based on the mobile hard disk+network storage dual mode provided by the present embodiment further includes, after step S600:
step S910, if the USB gadget driver of the kernel layer of the hardware storage device recognizes that the USB hardware interface is in the power-off state, notifying the application layer through the netlink mechanism.
And step S920, the application layer of the hardware storage device disables the USB storage mode, automatically switches the working mode of the operating system of the hardware storage device into the network storage mode, starts network service, and completes authentication with the Internet cloud and online flow.
Compared with the prior art, the automatic switching method based on the mobile hard disk and the network storage double modes provided by the embodiment has the advantages that if the USB gadget driver of the kernel layer of the hardware storage device recognizes that the USB hardware interface is in a power-off state, the application layer is notified through a netlink mechanism; the application layer of the hardware storage device disables the USB storage mode, automatically switches the working mode of the operating system of the hardware storage device into the network storage mode, starts network service, and completes the authentication with the Internet cloud and the automatic switching method based on the mobile hard disk and the network storage provided by the embodiment of the online flow, so that the automatic switching method is high in automation degree and convenient to use; the working efficiency is improved, and the cost expenditure is reduced; avoiding misoperation of users and improving the safety and reliability of the system.
As shown in fig. 5, fig. 5 is a functional block diagram of a first embodiment of an automatic switching system based on a mobile hard disk+network storage dual mode, where in this embodiment, the automatic switching system based on a mobile hard disk+network storage dual mode includes a monitoring module 10, a judging module 20, a first switching module 30, a closing module 40, a hiding module 50 and a read-write module 60, where the monitoring module 10 is configured to monitor whether a USB port of a kernel layer of a hardware storage device is connected when the hardware storage device is powered on and networked; the judging module 20 is used for connecting to the hardware storage device through a network and performing uploading, downloading, reading and writing operations of data when the hardware storage device is not connected to the computer through the USB port; the first switching module 30 is configured to switch the hardware storage device to a mobile hard disk operating mode if the currently connected USB port is a computer; the mobile hard disk operation mode is to simulate the system into a USB mobile hard disk, the client operates a file system in the hardware storage device according to a USB flash disk mode, and when the mobile hard disk operation mode is adopted, the hardware storage device is disconnected from a network, and the client can only operate on a computer through USB connection and cannot remotely access through the network mode; the closing module 40 is used for closing the network connection of the hardware storage device, simulating the hardware storage device into a USB mobile hard disk and informing the computer; a hiding module 50, configured to automatically hide the internal critical directory in the operating system of the hardware storage device; the read-write module 60 is used for reading and writing data in the hardware storage device on the computer.
And the monitoring module 10 monitors whether the kernel layer USB port of the hardware storage device is connected or not when the hardware storage device is electrified and networked.
In this embodiment, the hardware storage device mainly includes the following functions:
1. USB flash disk simulation of Linux operating system: the Linux device is allowed to operate in the form of a USB slave (slave) through the USB gadget driver of the Linux kernel, which means that it can communicate with another host device and be identified as one USB device.
2. Identifying the working states of a mobile hard disk and network storage: the identification is carried out from the kernel layer and the application layer of the linux operating system using the method, so that the accurate judgment of the current connection state of the hardware storage device using the method is ensured.
3. The kernel layer checks whether the current device is connected to other devices (such as a computer, a USB flash disk, etc.) through a USB driver.
4. The application layer judges the device connected with the current USB after receiving the netlink notification from the kernel layer, and determines whether the device is a connected computer or a USB flash disk currently through communication with the external device.
5. Double operation mode:
in the working mode of the mobile hard disk, the linux is simulated into a USB mobile hard disk through the embodiment, so that windows or macOS can operate a file system in the hardware storage device using the embodiment according to the mode of the USB. When the mobile hard disk is in a working mode, the hardware storage device can be disconnected from the network, and a user can only operate on the computer through USB connection and cannot remotely access the mobile hard disk through the network.
The network storage working mode is that through the embodiment, the used hardware storage device works in a NAS mode, and access and read-write control of a file directory and a file layer are performed according to the logged account. In the network storage mode of operation, a user may remotely access data in the hardware storage device via the network.
The switching of the two modes is determined by the functions of 'mobile hard disk and network storage working state identification', notification information from the kernel layer of the hardware storage device is monitored at all times after the hardware storage device is started and networked, when the USB port of the device is connected to a computer, the device is automatically switched to a 'mobile hard disk working mode', and when the USB port of the device is not connected to the computer, the device is operated in a 'network storage working mode'.
The judging module 20 is configured to enable a user to connect to the hardware storage device via a network and perform read-write operations such as uploading and downloading data when the hardware storage device is not connected to the computer via the USB port.
If the first switching module 30 recognizes that the currently connected USB port is a computer, the operating mode of the hardware storage device is switched to the mobile hard disk operating mode.
When the closing module 40 is in the mobile hard disk working mode, the hardware storage device closes the network connection, simulates the linux into a USB mobile hard disk and informs the computer.
The hiding module 50 automatically hides the critical directories within the operating system. The internal portion key directory includes a system directory, a configuration directory, and/or a drive directory, etc.
When the mobile hard disk is in the working mode, the read-write module 60 performs read-write operation on data in the hardware storage device on the computer.
Compared with the prior art, the mobile hard disk+network storage dual-mode-based automatic switching system provided by the embodiment adopts the monitoring module 10, the judging module 20, the first switching module 30, the closing module 40, the hiding module 50 and the read-write module 60, and monitors whether the kernel layer USB port of the hardware storage device is connected or not when the hardware storage device is electrified and networked; when the hardware storage device is not connected with the computer through the USB port, a user can be connected to the hardware storage device through a network and perform uploading, downloading, reading and writing operations of data; if the currently connected USB port is a computer, switching the hardware storage device into a mobile hard disk working mode; closing network connection of the hardware storage device, simulating the hardware storage device into a USB mobile hard disk and informing the computer; automatically hiding a key directory in an operating system of the hardware storage device; and reading and writing the data in the hardware storage device on the computer. The automatic switching system based on the mobile hard disk and the network storage dual mode is high in automation degree and convenient to use; the working efficiency is improved, and the cost expenditure is reduced; avoiding misoperation of users and improving the safety and reliability of the system.
Further, please refer to fig. 6, fig. 6 is a functional block diagram of a second embodiment of the mobile hard disk+network storage dual-mode-based automatic switching system provided by the present invention, and on the basis of the first embodiment, the mobile hard disk+network storage dual-mode-based automatic switching system further includes a second switching module 70 and an access module 80, where the second switching module 70 is configured to switch the hardware storage device to a network storage working mode if the current USB port is not connected or the connected peripheral is not a computer; the network storage working mode is that the hardware storage equipment works in a NAS mode, access and read-write control of a file directory and a file layer are carried out according to a logged account, and when the network storage working mode is adopted, a client can remotely access data in the hardware storage equipment through a network; the access module 80 is configured to notify the hardware storage device of the matching client program, set the self state to an online state, and allow the matching client to remotely access the data in the hardware storage device through the network.
If the second switching module 70 recognizes that the currently connected USB port is not a computer, the operating mode of the hardware storage device is switched to the network storage operating mode.
The access module 80 notifies the mating client program to set itself to an on-line state when the network storage operation mode, allowing the mating client to remotely access data in the hardware storage device via the network.
Compared with the prior art, the automatic switching system based on the mobile hard disk and the network storage dual mode provided by the embodiment adopts the second switching module 70 and the access module 80, and if the current connected USB port is identified not to be a computer, the hardware storage device is switched to the network storage working mode; the network storage working mode is that the hardware storage equipment works in a NAS mode, access and read-write control of a file directory and a file layer are carried out according to a logged account, and when the network storage working mode is adopted, a client can remotely access data in the hardware storage equipment through a network; the hardware storage device informs the matched client program, sets the self state to be an on-line state, and allows the matched client to remotely access data in the hardware storage device through a network. The automatic switching system based on the mobile hard disk and the network storage dual mode is high in automation degree and convenient to use; the working efficiency is improved, and the cost expenditure is reduced; avoiding misoperation of users and improving the safety and reliability of the system.
Preferably, referring to fig. 7, fig. 7 is a functional block diagram of a third embodiment of the automatic switching system based on a mobile hard disk+network storage dual mode, and on the basis of the second embodiment, the automatic switching system based on a mobile hard disk+network storage dual mode further includes an identification unit 81, a notification unit 82, a mounting unit 83 and an access unit 84, where the identification unit 81 is used for identifying whether an external device is accessed by a hardware storage device; the notification unit 82 is configured to, if the hardware storage device recognizes that an external device is connected, send a notification by using a netlink of the kernel layer to notify the application layer that the current USB interface is connected with the external device; the mounting unit 83 is configured to communicate with the external device by using an application layer of the hardware storage device, and mount the external usb disk as an external headquarter storage space when the external device is identified as the usb disk; and the access unit 84 is used for the client to continue the network remote access to the hardware storage device and access the data in the U disk.
Compared with the prior art, the mobile hard disk+network storage dual-mode-based automatic switching system provided by the embodiment adopts the identification unit 81, the notification unit 82, the mounting unit 83 and the access unit 84, and identifies whether external equipment is accessed or not through hardware storage equipment; when the hardware storage device recognizes that external equipment is connected, a netlink of the kernel layer sends a notification to inform the application layer that the current USB interface is connected with the external equipment; the application layer of the hardware storage device communicates with the external device, and when the external device is identified as a USB flash disk, the external USB flash disk is used as an external headquarter storage space for mounting; the client continues to remotely access the hardware storage device through the network and accesses the data in the U disk. The automatic switching system based on the mobile hard disk and the network storage dual mode is high in automation degree and convenient to use; the working efficiency is improved, and the cost expenditure is reduced; avoiding misoperation of users and improving the safety and reliability of the system.
Preferably, please refer to fig. 8, fig. 8 is a functional block diagram of a fourth embodiment of the automatic switching system based on mobile hard disk+network storage dual mode provided by the present invention, and on the basis of the first embodiment, the automatic switching system based on mobile hard disk+network storage dual mode further includes a notification module 91 and a third switching module 92, where the notification module 91 is configured to notify an application layer through a netlink mechanism if the kernel layer USB gadget driver of the hardware storage device recognizes that the USB hardware interface is in a power-off state; the third switching module 92 is configured to disable the USB storage mode at the application layer of the hardware storage device, automatically switch the operating mode of the operating system of the hardware storage device to the network storage mode, and start the network service, thereby completing the authentication with the internet cloud and the online process.
Compared with the prior art, the mobile hard disk+network storage dual-mode-based automatic switching system provided by the embodiment adopts the notification module 91 and the third switching module 92, and if the USB gadget driver of the kernel layer of the hardware storage device recognizes that the USB hardware interface is in a power-off state, the application layer is notified through a netlink mechanism; the application layer of the hardware storage device disables the USB storage mode, automatically switches the working mode of the operating system of the hardware storage device into the network storage mode, starts network service, completes authentication with the Internet cloud and the online flow, and is high in automation degree and convenient to use; the working efficiency is improved, and the cost expenditure is reduced; avoiding misoperation of users and improving the safety and reliability of the system.
The invention is illustrated below by way of specific examples:
embodiment one, mobile hard disk+network storage based dual-mode automatic switching work method
Taking as an example the case where a hardware storage device employing this method is connected to a usb disk.
And S11, electrifying and networking the hardware storage equipment, and automatically working in a network storage mode if the hardware storage equipment judges that the current USB is not connected.
S12, through the matched client, the system can be remotely connected to the hardware storage device from the network and access the data in the hardware storage device
S13, inserting the USB flash disk into a USB interface of the hardware storage device.
S14, a notification is sent out by the netlink of the kernel layer of the hardware storage device, and the application layer is informed that the external device connection exists in the current USB interface
S15, an application layer of the hardware storage device communicates with the external device, and the external device is identified as a U disk.
S16, the application layer of the hardware storage device continues to work according to the step 1), and the external USB flash disk is used as an external storage space for mounting
S17, the user can continue to remotely access the hardware storage device through the client, and access the data in the U disk from the external storage function.
Method for automatically switching operation based on mobile hard disk and network storage dual modes
Taking as an example the case where a hardware storage device (hereinafter referred to as a hardware storage device) employing this method is connected to a computer and disconnected from the computer.
And S21, electrifying and networking the hardware storage equipment, and automatically working in a network storage mode if the hardware storage equipment judges that the current USB is not connected.
S22, the hardware storage device can be remotely connected to the network through the matched client, and the data in the hardware storage device can be accessed.
S23, connecting the hardware storage device with the computer by using a USB wire.
S24, the USB gadget driver of the kernel layer of the hardware storage device recognizes that the USB hardware interface is in a power supply state, and notifies an application layer through a netlink mechanism.
S25, the application layer of the hardware storage device communicates with the external device, and the current USB interface is identified to be connected with the computer
S26, enabling a USB storage mode by an application layer of the hardware storage device, simulating the whole system into a USB mobile hard disk (namely, entering a working mode of the mobile hard disk), and informing an operating system of the computer. In order to avoid misoperation of a user, when the hardware storage device enters a working mode of the mobile hard disk, internal key catalogs in an operating system of the hardware storage device, such as an operating system catalogs and a driving catalogs of the hardware storage device, are automatically hidden.
S27, the application layer of the hardware storage device switches the working mode into a mobile hard disk, and simultaneously automatically closes the network storage mode and closes services such as network connection of the hardware storage device.
S28, a user can see the prompt of the newly accessed USB flash disk on the computer, and can operate the data stored in the hardware storage device according to the mode of using the standard USB flash disk.
S29, the user can check that the hardware storage device is in an off-line state through the client, and cannot access the hardware storage device.
S31, disconnecting the hardware storage device from the USB connection line of the computer.
S32, the USB gadget driver of the kernel layer of the hardware storage device recognizes that the USB hardware interface is in a power-off state, and notifies the application layer of the hardware storage device through a netlink mechanism.
S33, the application layer of the hardware storage device disables the USB storage mode, automatically switches the working mode of the operating system of the hardware storage device into network storage, starts network service, and completes authentication with the Internet cloud and online flow.
S34, the user can check that the hardware storage device in the previous off-line state is changed into the on-line state through the client, can remotely access the device through a network, and can check files copied from the computer into the device in the previous mobile hard disk mode.
The automatic switching method and system based on the mobile hard disk and the network storage dual mode provided by the embodiment have the following beneficial effects:
1. according to the connection state of the USB interface, the hardware storage device is automatically switched between the mobile hard disk mode and the network storage mode, and the automation degree is high.
2. The hardware storage device using the method automatically judges whether the current USB interface is connected with a computer or other USB devices (such as a USB flash disk), thereby ensuring the accuracy of mode switching.
3. Under the mode of 'mobile hard disk', the user can read and write all data in the device like operating the U disk on the computer, and the operation is convenient.
4. In the network storage mode, a user can authorize access to data under different directories like operating NAS through a matched client program, and limited read-write operation is performed, so that the safety and reliability of the system are improved.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention. It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (4)
1. The automatic switching method based on the mobile hard disk and the network storage dual modes is characterized by comprising the following steps:
monitoring whether a kernel layer USB port of the hardware storage device is connected or not when the hardware storage device is electrified and networked;
when the hardware storage device is not connected with the computer through the USB port, the hardware storage device is connected with the hardware storage device through a network, and uploading, downloading, reading and writing operations of data are performed;
if the currently connected USB port is a computer, switching the hardware storage device into a mobile hard disk working mode; the mobile hard disk working mode is that a whole system of network storage and mobile hard disk is simulated as a USB mobile hard disk, a computer operates a file system in the hardware storage device according to a USB flash disk mode, and when the mobile hard disk working mode is adopted, the hardware storage device is disconnected from a network and can only be operated on the computer through USB connection, and cannot be accessed remotely through the network mode;
closing network connection of the hardware storage device, simulating the hardware storage device into a USB mobile hard disk and informing the computer;
automatically hiding the key catalogue in the operating system of the hardware storage device;
Reading and writing data in the hardware storage device on the computer;
if the USB gadget driver of the kernel layer of the hardware storage device recognizes that the USB hardware interface is in a power-off state, notifying an application layer through a netlink mechanism;
the application layer of the hardware storage device disables the USB storage mode, automatically switches the working mode of the operating system of the hardware storage device into a network storage mode, starts network service, and completes authentication with the Internet cloud and online flow;
when the hardware storage device is electrified and networked, the step of monitoring whether the kernel layer USB port of the hardware storage device is connected further comprises the following steps:
if the current USB port is not connected or the connected peripheral is not a computer, switching the hardware storage equipment into a network storage working mode; the network storage working mode is that the hardware storage device works in a NAS mode, access and read-write control of a file directory and a file layer are performed according to a logged account, and when the network storage working mode is adopted, a client can remotely access data in the hardware storage device through a network;
the hardware storage device informs the matched client program, sets the self state to be an on-line state, and allows the matched client to remotely access data in the hardware storage device through a network;
The hardware storage device identifies whether external equipment is accessed;
if the hardware storage device recognizes that external equipment is connected, a netlink of the kernel layer sends a notification to inform an application layer that the external equipment is connected with a current USB interface;
the application layer of the hardware storage device communicates with the external device, and when the external device is identified as a USB flash disk, the external USB flash disk is used as an external storage space for mounting;
and the client continues to remotely access the hardware storage device through a network and accesses the data in the U disk.
2. The method for automatically switching between the mobile hard disk storage mode and the network storage mode according to claim 1, wherein the part of the key directories comprise a system directory, a configuration directory and/or a drive directory.
3. An automatic switching system based on a mobile hard disk and a network storage dual mode is characterized by comprising:
the monitoring module (10) is used for monitoring whether the kernel layer USB port of the hardware storage device is connected or not when the hardware storage device is electrified and networked;
the judging module (20) is used for connecting to the hardware storage device through a network and carrying out uploading, downloading, reading and writing operations of data when the hardware storage device is not connected with the computer through the USB port;
The first switching module (30) is used for switching the hardware storage device into a mobile hard disk working mode if the currently connected USB port is a computer; the mobile hard disk working mode is that a whole system of network storage and mobile hard disk is simulated as a USB mobile hard disk, a computer operates a file system in the hardware storage device according to a USB flash disk mode, and when the mobile hard disk working mode is adopted, the hardware storage device is disconnected from a network and can only be operated on the computer through USB connection, and cannot be accessed remotely through the network mode;
the closing module (40) is used for closing the network connection of the hardware storage device, simulating the hardware storage device into a USB mobile hard disk and informing the computer;
a hiding module (50) for automatically hiding a portion of the critical directory within the hardware storage device operating system;
the read-write module (60) is used for reading and writing data in the hardware storage device on the computer;
the second switching module (70) is used for switching the hardware storage device into a network storage working mode if the current USB port is not connected or the connected peripheral is not a computer; the network storage working mode is that the hardware storage device works in a NAS mode, access and read-write control of a file directory and a file layer are performed according to a logged account, and when the network storage working mode is adopted, a client can remotely access data in the hardware storage device through a network;
The access module (80) is used for informing the matched client program of the hardware storage device, setting the self state to be an on-line state, and allowing the matched client to remotely access the data in the hardware storage device through a network;
the identifying unit (81) is used for identifying whether external equipment is accessed or not by the hardware storage equipment;
the notification unit (82) is used for sending a notification by the netlink of the kernel layer to inform the application layer that the external device is connected to the current USB interface if the external device is identified to be connected by the hardware storage device;
the mounting unit (83) is used for communicating the application layer of the hardware storage device with the external device, and mounting the external USB flash disk as an external storage space when the external device is identified as the USB flash disk;
an access unit (84) for the client to continue network remote access to the hardware storage device and access to data in the USB flash disk;
a notification module (91) configured to notify an application layer through a netlink mechanism if the USB gadget driver of the kernel layer of the hardware storage device recognizes that the USB hardware interface is in a power-off state;
and the third switching module (92) is used for disabling the USB storage mode by the application layer of the hardware storage device, automatically switching the working mode of the operating system of the hardware storage device into a network storage mode, starting network service and finishing authentication with the Internet cloud and online flow.
4. The mobile hard disk + network storage dual mode based automatic switching system of claim 3, wherein the portion of the critical directories comprise a system directory, a configuration directory and/or a drive directory.
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