TWI633446B - Method, apparatus, system and external device for updating data - Google Patents

Abstract

The invention relates to a method, device and external equipment for updating data. The method includes: when the external device is connected to the terminal through the interface, receive the device descriptor request sent by the terminal, and return a response according to the device descriptor request; receive the operation request sent by the terminal, send the operation request to the server, or send The operation request is converted into a network request and sent to the server; and the receiving server returns the data returned according to the operation request or the network request, and forwards the returned data to the terminal. The invention does not need to be configured, does not need to connect the terminal to the network, and is free from the dependence on the operating system and the user end.

Description

Method, device, system and external equipment for updating data

The invention relates to the technical field of data processing, in particular to a method for updating data, a device for updating data, a system for updating data, and an external device for updating data.

When the terminal needs to use some frequently updated content, usually use network disk mapping, or use network hard disk. When using network disk mapping, you need to use the shared folder in the local network as a virtual network hard disk, and then map the network hard disk to the terminal. When using a network hard drive, you need to use a browser to access the corresponding website and enter the user name and password, and then obtain the content of the network hard drive, or obtain the content of the network hard drive by installing the client. Both solutions have the following defects:

1. All need to be configured, for example, the scheme of the network disk needs to be mapped, and the scheme of the network hard disk needs to configure the user name and password or install the client;

2. All terminals need to be connected to the Internet;

3. It can only be used on some specific operating systems. For example, when the system does not have an open browser, the network hard drive cannot be used.

Based on this, it is necessary to provide a method, device, system, and external device for updating data in response to the above problems, which can be configured without updating, without connecting to the network, and without being restricted by the operating system.

In order to achieve the above objectives, the technical solutions adopted by the present invention are as follows:

A method for updating data includes the following steps: when an external device is connected to a terminal through an interface, a device descriptor request sent by the terminal is received, and a response is returned according to the device descriptor request; Operation request, send the operation request to the server, or convert the operation request into a network request and send it to the server; and receive the server ’s response to the operation request or the network request Data, and forward the returned data to the terminal.

In the method for updating data of the present invention, when an external device is connected to a terminal through an interface, the external device is described as a general-purpose device, then the built-in driver of the terminal can be used. When updating the data, the user can use an ordinary device Similarly, send operation requests to external devices, all operation requests will be converted to operations on the server, the server returns the data after performing the corresponding operation, forwards the returned data to the terminal, and the terminal can directly use the returned data . The invention does not need to be configured, and can access the data on the server like ordinary equipment; the external device is used as an intermediate interactive device without connecting the terminal to the network; it is free from the dependence on the operating system and the client, and is not only suitable for routine operations The system is also suitable for some devices or systems that are not open, such as set-top boxes and printers.

In one embodiment, the response includes a response that the external device is a mass storage device. The external device is described as a mass storage device, and the terminal recognizes the external device as a mass storage device, which improves adaptability.

In one embodiment, the mass storage device includes a USB mass storage device. The USB mass storage device is a universal storage device, which is basically compatible with each system, further improving the applicability.

In one embodiment, the returned data is forwarded to the terminal according to the USB Mass Storage protocol.

In one embodiment, the returned data includes an executable program of the terminal.

In one embodiment, the executable program includes a communication code and a screen data capture code, the communication code includes a code for communication between the terminal and an external device and a code for communication between the external device and the server, the screen The data capture code includes any one or both of an encoding code for audio capture via the terminal API and a video or image encoding code for screen capture via the terminal API.

In one embodiment, after forwarding the returned data to the terminal, the method further includes the following steps: receiving audio and video image data sent by the terminal through a communication code, wherein the audio and video image data Screen data capture code acquisition; forward audio and video image data to the server for display.

In one embodiment, when the external device is connected to the terminal through the interface, the following steps are further included: driving the wireless network card or wired network card in the external device, and connecting the wireless network card or wired network card with the information in the configuration file Go online. The external device itself is equipped with a network card, which is connected to the network when the connection terminal is powered on, so that it can communicate with the server.

A device for updating data includes a device descriptor request response module, an operation request receiving and sending module, and a data receiving and sending module. The device descriptor request response module is used to receive a device descriptor request sent by the terminal when an external device is connected to the terminal through an interface, and return a response according to the device descriptor request. The operation request receiving and sending module is used to receive the operation request sent by the terminal, send the operation request to the server, or convert the operation request into a network request and send it to the server. The data receiving and sending module is used for receiving data returned by the server according to the operation request or the network request, and forwarding the returned data to the terminal.

In the device for updating data of the present invention, when an external device is connected to a terminal through an interface, the external device is described as a general-purpose device, then the built-in driver of the terminal can be used, and when updating the data, the user can use an ordinary device Similarly, send operation requests to external devices, all operation requests will be converted to operations on the server, the server returns the data after performing the corresponding operation, forwards the returned data to the terminal, and the terminal can directly use the returned data . The invention does not need to be configured, and can access the data on the server like ordinary equipment; the external device is used as an intermediate interactive device without connecting the terminal to the network; it is free from the dependence on the operating system and the client, and is not only suitable for routine operations The system is also suitable for some devices or systems that are not open, such as set-top boxes and printers.

In one embodiment, the returned data includes an executable program of the terminal.

In one embodiment, the executable program includes a communication code and a screen data capture code, the communication code includes a code for communication between the terminal and an external device and a code for communication between the external device and the server, the screen The data capture code includes any one or both of an encoding code for audio capture via the terminal API and a video or image encoding code for screen capture via the terminal API.

In one embodiment, the device of the present invention further includes an image data receiving module and an image data transmitting module connected to the data receiving and transmitting module; the image data receiving module receiving terminal uses a communication code Audio and video image data sent, wherein the audio and video image data is obtained by the screen data capture code; the image data sending module is used to forward the audio and video image data to the server for display .

In one embodiment, the device of the present invention further includes a network connection module that drives the wireless network card or wired network card in the external device when the external device is connected to the terminal through the interface. The information in the configuration file connects the wireless network card or wired network card to the network. The external device itself is equipped with a network card, which is connected to the network when the connection terminal is powered on, so that it can communicate with the server.

An external device for updating data includes a network card and the device for updating data; the external device is connected to a terminal through an interface and connected to the network through a network card to establish a connection with a server.

The external device for updating data of the present invention, when the external device is connected to the terminal through the interface, the terminal recognizes the external device as a universal device, then the terminal can use the built-in driver. When updating the data, the user can use the normal The device sends an operation request to the external device, and the external device converts all operation requests to the operation of the server. The server returns the data after performing the corresponding operation. The external device forwards the returned data to the terminal, and the terminal can be used directly. Returned information. The invention does not need to be configured, and can access the data on the server like ordinary equipment; the external device is used as an intermediate interactive device without connecting the terminal to the network; it is free from the dependence on the operating system and the client, and is not only suitable for routine operations The system is also suitable for some devices or systems that are not open, such as set-top boxes and printers.

In one embodiment, the network card includes any one or two of a wired network card and a wireless network card.

A system for updating data includes: a terminal, at least one external device, and a server; the server includes a storage device, a node configuration device, suitable for pre-storing data by the storage device, and by the node configuration device and all The external device establishes communication, and transmits the data back to the external device according to the received operation request or the network request. The terminal is used to send a device descriptor request to the external device; and send an operation request to the external device to receive the data. The external device includes a connecting device and a sending device, the connecting device is used to connect to the terminal through an interface, and when receiving the device descriptor request, returns a response to the terminal, and forwards the reception The received data; the sending device has a transceiver for communication, and sends the received operation request to the server, or converts the operation request into a network request and sends it to the server.

In the system for updating data of the present invention, when an external device is connected to the terminal through an interface, the terminal recognizes the external device as a general-purpose device, then the terminal can use the built-in driver, and when updating the data, the user can use an ordinary device In the same way, it sends an operation request to an external device. The external device converts all operation requests into operations on the server. The server returns the data after performing the corresponding operation. The external device forwards the returned data to the terminal. Biography. The invention does not need to be configured, and can access the data on the server like ordinary equipment; the external device is used as an intermediate interactive device without connecting the terminal to the network; it is free from the dependence on the operating system and the client, and is not only suitable for routine operations The system is also suitable for some devices or systems that are not open, such as set-top boxes and printers.

In one embodiment, the response includes a response that the external device is a mass storage device; the data includes an executable program of the terminal.

In one embodiment, the executable program includes a communication code and a screen data capture code, the communication code includes a code for communication between the terminal and an external device and a code for communication between the external device and the server, the screen The data capture code includes any one or both of an encoding code for audio capture via the terminal API and a video or image encoding code for screen capture via the terminal API.

In one embodiment, after the terminal receives the data, it is further used to send the encoded audiovisual image data to the external device through a communication code, wherein the audiovisual image data is captured by the screen data Obtain the code to obtain; the external device forwards the audio and video image data to the server; the server decodes and displays the audio and video image data.

In one embodiment, the server is additionally used to obtain local request information, and send the request information to the terminal through the external device; the terminal executes the request information and the result after execution It is forwarded to the server by the external device.

In one embodiment, the requested information includes touch operation information of the user. The user can directly perform the touch operation on the server. The server sends the touch operation information to the terminal through the external device to respond. The terminal sends the result of the response to the server through the external device. The server displays the response result. Since the user can directly operate the corresponding image in the server, compared with the technology of relying on the terminal to perform image operation, the present invention further improves the convenience of user operation.

In order to further illustrate the technical means adopted by the present invention and the effects achieved, the technical solution of the present invention will be described clearly and completely in conjunction with the drawings and preferred embodiments.

As shown in Figure 1, a method for updating information includes steps:

Step S110: When the external device is connected to the terminal through the interface, a device descriptor (descriptor) request sent by the terminal is received, and a response is returned according to the device descriptor request;

Step S120: Receive the operation request sent by the terminal, send the operation request to the server, or convert the operation request into a network request and send it to the server;

Step S130: Receive data returned by the server according to the operation request or the network request, and forward the returned data to the terminal.

The method of the present invention can be implemented according to a corresponding program, which runs on an embedded operating system included in an external device. The external device also contains a processor and memory to ensure the normal operation of the embedded system. Each step of the method of the present invention will be described in detail below.

In step S110, the external device has an interface, and is connected to the terminal through the interface. The terminal can be a user's computer, mobile phone, set-top box, printer, etc. When an external device is connected to a terminal, the terminal sends a device descriptor request to the external device, requesting the external device to describe itself, and after receiving the device descriptor request, returns a response, describing itself as a generic device.

In consideration of applicability and compatibility, in one embodiment, the response includes a response that the external device is a mass storage device. The mass storage device is a secondary storage device, which is a collective term for memory, including USB (Universal Serial Bus, Universal Serial Bus) mass storage devices, etc.

Taking the mass storage device as a USB mass storage device as an example, when receiving the device descriptor request sent by the terminal, the external device is described as a USB mass storage device, and the terminal recognizes the external device as a USB mass storage device .

When describing an external device as a USB mass storage device, the interface of the external device is set to a USB interface, and is connected to the terminal through the USB interface. When describing an external device as another general-purpose mass storage device, the interface of the external device is set to correspond to the interface supported by the mass storage device, and is connected to the terminal through the supported interface.

Since the terminal recognizes the external device as a universal device, it can use the built-in driver. For example, the general operating system integrates a USB protocol driver. When the external device is a USB mass storage device, the terminal can use the built-in device. USB protocol driver.

Since the external device acts as a data exchange device, it needs to establish a connection with the server. Therefore, in one embodiment, when the external device is connected to the terminal through the interface, it may include additional steps:

Drive the wireless network card or wired network card in the external device, and connect the wireless network card or wired network card to the network through the information in the configuration file.

When the external device is connected to the terminal, the embedded system is powered on and started. After the embedded system is started, the wireless network card or the wired network card is driven, and the external device is automatically connected to the network through the preset configuration. Users can also set up power modules in external devices to automatically connect to the network through their own power modules.

In step S120, since the terminal recognizes the external device as a general-purpose device, the user can send an operation request by using conventional operations, where the operation request includes a read-write request, a query request, and so on. After the external device receives the operation request of the terminal, it can convert the operation request into a corresponding network request (including but not limited to HTTP / FTP / SAMBA) through a custom protocol, and then send it to the server, or directly send the operation request Forward it to the server and let the server convert it by itself. The server is located locally or on the Internet, and can be a smart interactive tablet.

Taking the USB mass storage device as an example, the operation of the USB mass storage device follows the SCSI (Small Computer System Interface, small computer system interface) protocol, and the terminal's operation of the USB mass storage device (query the partition structure, read files Directory, read, write and delete files, etc.) are eventually converted into SCSI commands and sent to the USB mass storage device via USB packaging. For example, if the USB mass storage device is opened, the operating system of the terminal actually reads the file configuration table of the device through a SCSI command read request (a piece of data area in the flash memory file system, indicating that this file system What files are included). The external device then converts these requests into network requests and sends them to the server or directly sends them to the server without conversion.

When the operation request is converted, the operation request can be converted into a corresponding string. For example, the read and write request sent by the terminal generally includes the read and write position and read and write length information, etc., and the read and write request can be converted into A string of the form of request type + requested position + requested data length. It should be noted that there are various methods for converting the operation request into a network request, and the user can convert the operation request in other existing methods, which is not limited in the present invention.

In step S130, the server returns the data after performing the corresponding operation according to the operation request or the network request. In one embodiment, the returned data may include an executable program of the terminal. An executable program refers to an executable program that can be floatingly positioned in the storage space of the operating system. The data returned by the server can also be other data than executable programs, such as a read and write request for a magnetic sector sent by the terminal. The data is sent back to the external device. For another example, the terminal sends a request to query whether the device is ready, and the server returns whether the device is ready according to the current status.

In one embodiment, the executable program may include communication code and screen data capture code. The communication code includes a communication code between the terminal and the external device and a communication code between the external device and the server. The communication code enables the terminal to send the captured audio, video and image data to the external device through the code, and the external device transfers the audio and video image data to the server. The screen data capture code includes any one of an encoding code for audio capture through a terminal API (Application Programming Interface) and a video or image coding code for screen capture through a terminal API Or both.

The external device forwards the returned data to the terminal in response to the request initiated by the terminal. For example, taking a USB mass storage device as an example, the external device forwards the returned data to the terminal according to the USB Mass Storage protocol. Since there is a communication code between the external device and the terminal at this time, the forwarding of the data is directly realized by the communication code.

In one embodiment, after forwarding the returned data to the terminal, it may include additional steps:

Audio and video image data sent by the receiving terminal through the communication code, wherein the audio and video image data is obtained by the screen data grabbing code;

Forward audio and video image data to the server for display.

After capturing audio and video image data, the terminal generally encodes the audio and video image data, and sends the encoded data to the server through an external device. After the server receives the encoded data, it decodes and displays it.

The present invention describes an external device as a general-purpose device, such as a large-capacity storage device, using a driver program built into the terminal, and the terminal automatically completes driver installation when connected to the external device. The invention does not need to be configured. The user can access the files stored on the server just like using ordinary equipment. All the requests will be converted through the external equipment, and the terminal operation request will be converted into the operation of the network storage server. The invention is free from the dependence on the operating system and the user end, and can be used on some devices or systems that are not open.

Based on the same inventive concept, the present invention also provides a device for updating data. The specific implementation of the device of the present invention will be described in detail below with reference to the drawings.

As shown in Figure 2, a device for updating data includes:

The device descriptor request response module 110 is used to receive a device descriptor request sent by the terminal when an external device is connected to the terminal through an interface, and return a response according to the device descriptor request;

The operation request receiving and sending module 120 is configured to receive the operation request sent by the terminal, send the operation request to the server, or convert the operation request into a network request and send it to the server;

The data receiving and sending module 130 is configured to receive the data returned by the server according to the operation request or the network request, and forward the returned data to the terminal.

The device of the present invention can be implemented according to a corresponding program module, which runs on an embedded operating system included in an external device. The external device also contains a processor and memory to ensure the normal operation of the embedded system. Each module of the device of the present invention will be described in detail below.

When an external device is connected to a terminal, the terminal sends a device descriptor request to the external device to request the external device to describe itself. The device descriptor request response module 110 returns a response after receiving the device descriptor request, describing itself as a generic device .

In consideration of applicability and compatibility, in one embodiment, the response includes a response that the external device is a mass storage device. Mass storage device is a secondary storage device, which is a collective name for memory, including USB mass storage device, etc.

Since the external device acts as a data exchange device, it needs to establish a connection with the server. Therefore, in one embodiment, the device of the present invention may further include a network connection module that drives a wireless network card or a wired network card in the external device when the external device is connected to the terminal through an interface , The wireless network card or wired network card is connected to the network through the information in the configuration file. Users can also set up power modules in external devices to automatically connect to the network through their own power modules.

Operation requests include read and write requests and query requests. After receiving the operation request of the terminal, the operation request receiving and sending module 120 can convert the operation request into a corresponding network request through a custom protocol, and then send it to the server, or forward the operation request directly to the server. Let the server convert itself.

The server returns the data after performing the corresponding operation according to the operation request or the network request. In an embodiment, the returned data may include an executable program of the terminal. An executable program refers to an executable program that can be floatingly positioned in the storage space of the operating system. The data returned by the server can also be other data than executable programs, such as a read and write request for a magnetic sector sent by the terminal. The data is sent back to the external device. For another example, the terminal sends a request to query whether the device is ready, and the server returns whether the device is ready according to the current status.

In one embodiment, the executable program may include communication code and screen data capture code. The communication code includes a code for communication between a terminal and an external device and a code for communication between an external device and a server, and the screen data capture code includes an encoding code for audio capture through a terminal API and a terminal API Either or both of the video or image encoding codes for screen capture.

The data receiving and sending module 130 receives the data returned by the server, and forwards the returned data to the terminal in response to the request initiated by the terminal. For example, taking a USB mass storage device as an example, the data receiving and sending module 130 forwards the returned data to the terminal according to the USB Mass Storage protocol. Since there is a communication code between the external device and the terminal at this time, the forwarding of the data is directly realized by the communication code.

In one embodiment, the device of the present invention may further include an image data receiving module and an image data transmitting module connected to the data receiving and transmitting module 130; the image data receiving module receiving terminal Audio and video image data sent by the communication code, wherein the audio and video image data is obtained by the screen data capture code; the image data sending module is used to forward the audio and video image data to the server to For display. After capturing audio-video image data, the terminal generally encodes the audio-video image data and sends the encoded data to the server. After the server receives the encoded data, it decodes and displays it.

The present invention describes an external device as a general-purpose device, such as a large-capacity storage device, using a driver program built into the terminal, and the terminal automatically completes driver installation when connected to the external device. The invention does not need to be configured. The user can access the files stored on the server just like using ordinary equipment. All the requests will be converted through the external equipment, and the terminal operation request will be converted into the operation of the network storage server. The invention is free from the dependence on the operating system and the user end, and can be used on some devices or systems that are not open.

As shown in FIG. 3, the present invention also provides an external device for updating data. The external device includes a network card and the device for updating data. The external device is connected to a terminal through an interface and connected to the network through a network card. The server establishes a connection. The network card includes any one or two of a wired network card and a wireless network card.

As shown in FIG. 4, the present invention further provides a system for updating data. The system for updating data includes: a terminal, at least one external device, and a server; the server includes a storage device and a node configuration device. Storing data in advance by the storage device and establishing communication with the external device by the node configuration device, and transmitting the data back to the external device according to the received operation request or the network request ;

The terminal is used to send a device descriptor request to the external device; and send an operation request to the external device to receive the data;

The external device includes a connecting device and a sending device, and the connecting device is used to connect with the terminal through an interface, and transmits a response back to the terminal when receiving the device descriptor request, and forwards the received The data; the sending device has a transceiver for communication, and sends the received operation request to the server, or converts the operation request into a network request and sends it to the server.

In one embodiment, the response includes a response that the external device is a mass storage device; the data includes an executable program of the terminal.

In one embodiment, the executable program includes a communication code and a screen data capture code, the communication code includes a code for communication between the terminal and an external device and a code for communication between the external device and the server, the screen The data capture code includes any one or both of an encoding code for audio capture via the terminal API and a video or image encoding code for screen capture via the terminal API.

In one embodiment, after receiving the converted data, the terminal is also used to send the encoded audio-visual image data to the external device through a communication code, wherein the audio-visual image data is transmitted through the Screen data capture code acquisition; the external device forwards audio and video image data to the server; the server decodes and displays the audio and video image data.

In one embodiment, the server is additionally used to obtain local request information, and send the request information to the terminal through the external device; the terminal executes the request information and the result after execution It is forwarded to the server by the external device. The request information includes the user's touch operation information and so on. In order to better understand the process, a specific embodiment will be described below.

A video image is displayed on the server. When the user touches the close button of the video image window, the server sends the request information for closing the window to the terminal through an external device. The terminal closes the corresponding window according to the request information and closes it. The screen data behind the window is forwarded to the server by an external device, and the server receives the screen data and displays it. The screen displayed after closing the video image window is displayed. It is equivalent to that the user can directly operate the corresponding image in the server without relying only on the operation mode of the terminal, which further improves the convenience of the user operation.

In order to better understand the present invention, the following describes the interaction process between a PC (personal computer, personal computer), an external device, and a smart interactive tablet in combination with a specific embodiment.

Step S1: When the external device is connected to the PC through the USB interface, the communication is established by the internal drive of the PC or a custom driver. The external device is connected to the WIFI (wireless network) through the built-in wireless network card to establish a smart interactive tablet Wired, the PC sends a device descriptor request to the external device;

Step S2: The external device returns the response of the USB mass storage device to the PC;

Step S3: The PC sends an operation request to download the communication code and screen data capture code to the external device;

Step S4: The external device converts the operation request and sends it to the smart interactive tablet;

Step S5: The smart interactive tablet sends the stored communication code and screen data capture code to the external device according to the operation request;

Step S6: The external device forwards the communication code and screen data capture code to the PC;

Step S7: The communication code received by the PC enables data communication between the PC, the external device and the smart interactive tablet. The PC sends the audio and video image data captured by the screen data capture code to the external device;

Step S8: The external device forwards the audio, video and image data to the smart interactive tablet for display;

Step S9: The smart interactive tablet obtains the user's request information and sends it to the external device;

Step S10: The external device sends the requested information to the terminal;

Step S11: The terminal executes the request information and sends the execution result to an external device;

Step S12: The external device sends the execution result to the smart interactive tablet for display.

The technical features of the above-mentioned embodiments can be arbitrarily combined. In order to simplify the description, all possible combinations of the technical features in the above-mentioned embodiments are not described. All should be considered within the scope of this description.

The above-mentioned embodiments only express several embodiments of the present invention, and their descriptions are more specific and detailed, but they should not be construed as limiting the patent scope of the invention. It should be noted that, for those with ordinary knowledge in the technical field, several variations and improvements can be made without departing from the concept of the present invention, which all fall within the protection scope of the present invention. Therefore, the scope of protection of the invention patent shall be subject to the scope of the attached patent application. The above are only the preferred embodiments of the present invention, and all changes and modifications made within the scope of the patent application of the present invention shall fall within the scope of the present invention.

110‧‧‧Device Descriptor Request Response Module

120‧‧‧Operation request receiving and sending module

130‧‧‧Data receiving and sending module

S1 to S12, S110 to S130 ‧‧‧ steps

Figure 1 is a schematic flowchart of an embodiment of a method for updating data of the present invention; Figure 2 is a schematic structural diagram of an embodiment of an apparatus for updating data of the present invention; Figure 3 is a schematic structural diagram of an embodiment of an external device for updating data of the present invention; 4 is a schematic structural diagram of an embodiment of a system for updating data according to the present invention; FIG. 5 is a schematic diagram of interaction between a PC, an external device, and a smart interactive tablet of the present invention.

Claims (15)

A method for updating data includes the following steps: when an external device is connected to a terminal through an interface, a device descriptor (descriptor) request sent by the terminal is received, and a response is returned according to the device descriptor request ; Receiving an operation request sent by the terminal, sending the operation request to a server, or converting the operation request into a network request and sending it to the server; and receiving the server according to the operation request or the network Request the returned data and forward the returned data to the terminal; the returned data includes the executable program of the terminal, the executable program includes a communication code and a screen data capture code, the The communication code includes a code for communication between the terminal and the external device and a code for communication between the external device and the server, and the screen data capture code includes an encoding code and a loan for audio capture through a terminal API Either or both of video or image coding codes for screen capture by the terminal API. The method for updating data according to claim 1, wherein the response includes a response that the external device is a mass storage device. The method for updating data according to claim 2, wherein the mass storage device includes a USB mass storage device. The method for updating data according to claim 3, wherein the returned data is forwarded to the terminal according to the USB Mass Storage protocol. The method for updating data according to claim 1, wherein after forwarding the returned data to the terminal, the method for updating data further includes the following steps: receiving an audio and video image sent by the terminal through the communication code Image data, wherein the audiovisual image data is obtained by the screen data capture code; and the audiovisual image data is forwarded to the server for display. The method for updating data according to any one of claims 1 to 5, wherein when the external device is connected to the terminal through the interface, the method for updating data further includes the following steps: driving the external device A wireless network card or a wired network card connects the wireless network card or the wired network card to a network through information in a configuration file. A device for updating data, comprising: a device descriptor request response module, which is used for receiving a device descriptor request sent by the terminal when an external device is connected to a terminal through an interface, and according to the device descriptor request Return a response; an operation request receiving and sending module, used to receive an operation request sent by the terminal, send the operation request to a server, or convert the operation request to a network request and send it to the A server; and a data receiving and sending module for receiving data returned by the server according to the operation request or the network request, and forwarding the returned data to the terminal; wherein the returned data An executable program including the terminal, the executable program includes a communication code and a screen data capture code, the communication code includes a code for communication between the terminal and the external device and a communication between the external device and the server Code, and the screen data capture code includes the encoding code for audio capture by a terminal API and the screen capture by the terminal API Or either or both of a video image coding code. The device for updating data according to claim 7, further comprising an image data receiving module and an image data transmitting module connected to the data receiving and transmitting module; wherein the image data receiving module receives the The terminal sends an audiovisual image data by the communication code, wherein the audiovisual image data is obtained by the screen data capture code; the image data sending module is used to forward the audiovisual image data to The server for display. The device for updating data according to any one of claims 7 to 8, further comprising a network connection module, wherein the network connection module drives the external device when the external device is connected to the terminal through the interface For a wireless network card or a wired network card in an external device, connect the wireless network card or the wired network card to a network by using information in a configuration file. An external device for updating data, including a network card and the device for updating data described in any one of items 7 to 8; wherein the external device is connected to the terminal through an interface, connected to the network through the network card, and a The server establishes a connection. The external device for updating data according to claim 10, wherein the network card includes any one or two of a wired network card and a wireless network card. A system for updating data, including: a terminal; at least one external device; and a server; wherein the server includes a storage device and a node configuration device, adapted to pre-store data by the storage device, and by the The node configuration device establishes communication with the external device, and transmits the data back to the external device according to an operation request or a network request received; wherein the terminal is used to send a device descriptor request to the external device, and Send an operation request to the external device to receive the data; and wherein the external device includes a connection device and a transmission device, the connection device is used to connect with the terminal through an interface and receives the device descriptor request Send a response back to the terminal and forward the received data; the sending device has a transceiver for communication and sends the received operation request to the server or converts the operation request The network request is sent to the server; the response includes that the external device is a mass storage device Yes, the data includes the executable program of the terminal, the executable program includes a communication code and a screen data capture code, the communication code includes the communication code between the terminal and the external device and the external device and the servo The code for the communication between the devices, and the screen data capture code includes any one or both of the encoding code for audio capture by a terminal API and the video or image encoding code for screen capture by the terminal API Species. The system for updating data according to claim 12, wherein after receiving the data, the terminal is further used to send the encoded audio-visual image data to the external device through the communication code, wherein the audio-visual image data Obtained by the screen data capture code; the external device forwards the audiovisual image data to the server; the server decodes and displays the audiovisual image data. The system for updating data according to claim 13, wherein the server is additionally used to obtain local request information, and send the request information to the terminal through the external device; the terminal executes the request information and will execute The later result is forwarded to the server by the external device. The system for updating data according to claim 14, wherein the request information includes a user's touch operation information.