WO2023284755A1

WO2023284755A1 - Switching control method and apparatus, interactive smart tablet, and storage medium

Info

Publication number: WO2023284755A1
Application number: PCT/CN2022/105293
Authority: WO
Inventors: 苏良虎
Original assignee: 广州视源电子科技股份有限公司; 广州视睿电子科技有限公司
Priority date: 2021-07-12
Filing date: 2022-07-12
Publication date: 2023-01-19
Also published as: CN115617223A

Abstract

Embodiments of the present application provide a switching control method and apparatus, an interactive smart tablet, and a storage medium, comprising: receiving a device start instruction; in response to the device start instruction, starting an interactive smart tablet and displaying a customized boot screen; after the boot screen stops displaying, displaying a first interface of a first virtual system, the first interface being a system desktop of the first virtual system, and the first interface displaying a first application icon of a first application installed in the first virtual system and a second application icon of a second application installed in a second virtual system; receiving a first selection instruction for selecting a target application icon from the second application icons; and in response to the first selection instruction, replacing the first interface with a second interface, the second interface being an application interface displayed after a second application corresponding to the target application icon is started. By adoption of the method, the technical problems in the related art of high device cost and high hardware design complexity when an interactive smart tablet supports multiple operating systems can be solved.

Description

Switching control method, device, interactive smart tablet and storage medium

This application claims the priority of the Chinese patent application submitted to the China Patent Office on July 12, 2021, with the application number 202110786882.9, and the title of the invention is "switching control method, device, interactive smart tablet and storage medium", the entire content of which is incorporated by reference incorporated in this application.

technical field

The embodiments of the present application relate to the technical field of virtual machines, and in particular, to a switching control method and device, an interactive smart tablet, and a storage medium.

Background technique

The interactive smart tablet is an integrated device that controls the content displayed on the tablet and realizes human-computer interaction through touch technology. It integrates a projector, electronic whiteboard, curtain, audio, TV and video conference terminal or multiple functions. Large-sized interactive smart tablets are widely used in the education market and conference market. In order to enrich the functions of the interactive smart panel, generally multiple operating systems are installed in the interactive smart panel, such as installing Windows system and Android system, so as to realize the corresponding functions of running different operating systems in the interactive smart panel. In order to enable the interactive smart panel to support multiple operating systems, it is common to install multiple different chip modules in the interactive smart panel, and run an operating system in each chip module, so that although the interactive smart panel supports multiple operating systems, However, the device cost and hardware design complexity of the interactive smart panel are increased.

Contents of the invention

The embodiment of the present application provides a switching control method, device, interactive smart tablet and storage medium to solve the technical problems of high equipment cost and high complexity of hardware design in the related art when the interactive smart tablet supports multiple operating systems.

In the first aspect, in an embodiment of the present application, a switching control method is provided, including:

Receive device startup instructions;

In response to the device startup instruction, start the interactive smart tablet and display a customized startup screen;

After the start-up screen stops displaying, the first interface of the first virtual system is displayed, the first interface is the system desktop of the first virtual system, and the first interface is displayed with the first virtual system installed in the first virtual system. The first application icon of the application and the second application icon of the second application installed in the second virtual system, the second virtual system is at least one;

receiving a first selection instruction, the first selection instruction is used to select a target application icon among the second application icons;

In response to the first selection instruction, the first interface is replaced with a second interface, and the second interface is an application interface displayed after the second application corresponding to the target application icon is started.

According to an embodiment of the present application, after replacing the first interface with the second interface, it further includes:

Receive an application exit command;

In response to the application exit instruction, exit the second application corresponding to the target application icon, and replace the second interface with a third interface, the third interface being the second virtual system to which the second application belongs system desktop, the third interface displays the first application icon of the first virtual system and the second application icon of the second virtual system.

According to an embodiment of the present application, after the start-up screen stops displaying, after displaying the first interface of the first virtual system, it further includes:

Receive screen control commands;

In response to the screen control instruction, displaying a virtual control area in the first interface, the virtual control area displays a first system icon of the first virtual system and a second system icon of the second virtual system ;

receiving a second selection instruction, the second selection instruction being used to select a target system icon among the second system icons;

In response to the second selection instruction, the first interface is replaced with a fourth interface, and the fourth interface is the system desktop of the second virtual system corresponding to the target system icon.

According to an embodiment of the present application, in response to the device startup instruction, starting the interactive smart tablet and displaying a customized startup screen includes:

In response to the device startup instruction, start the main operating system of the interactive smart panel, the first virtual system and the second virtual system are installed in the main operating system, and the main operating system is a system that does not have a desktop environment. operating system;

During the startup process of the main operating system, a customized startup screen is displayed.

According to an embodiment of the present application, after the start-up screen stops displaying, before displaying the first interface of the first virtual system, it includes:

start the first virtual system and the second virtual system;

When the first virtual system outputs a startup screen, stop displaying the startup screen;

After the startup screen stops displaying, displaying the first interface of the first virtual system includes:

After the startup screen stops displaying, display the startup screen of the first virtual system, and suspend the second virtual system in the background;

After the start-up image stops displaying, the first interface of the first virtualization system is displayed.

According to an embodiment of the present application, after displaying the startup screen of the first virtual system and suspending the second virtual system in the background, it includes:

Starting the VMM message management service in the VMM service, the VMM service is a service provided by the main operating system, and the VMM message management service drives the management and operation of the first virtual system and the second virtual system.

According to an embodiment of the present application, the starting the first virtual system and the second virtual system includes:

Read the configuration file of the VMM service in the host operating system;

Analyzing configuration parameters of the first virtual system and the second virtual system according to the configuration file;

Starting the first virtual system and the second virtual system according to the configuration parameters.

According to an embodiment of the present application, the first virtual system is configured with a first icon service, and the second virtual system is configured with a second icon service;

In response to the first selection instruction, replacing the first interface with the second interface includes:

generating a switching message by the first icon service according to the first selection instruction, the switching message including the target application icon and the second virtual system to which the target application icon belongs;

sending the switching message to the VMM message management service by the first icon service;

According to the switching message, the VMM message management service notifies the second icon service of the second virtual system to which the target application icon belongs to start the second application corresponding to the target application icon;

Opening a second application corresponding to the target application icon by the second icon service;

The VMM service obtains the second interface of the second application, and replaces the first interface with the second interface.

According to an embodiment of the present application, according to the switching message, the VMM message management service notifies the second icon service of the second virtual system to which the target application icon belongs to enable the second icon service corresponding to the target application icon. Applications include:

According to the switching message, the VMM message management service instructs to delete the touch device of the first virtual system;

The VMM message management service instructs to delete the USB device of the first virtual system;

Instructing by the VMM message management service to suspend the first virtual system in the background;

The VMM message management service instructs to resume running the second virtual system to which the target application icon belongs;

instructing the second virtual system to add a touch device by the VMM message management service;

The VMM message management service notifies the second icon service of the second virtual system to start the second application corresponding to the target application icon;

After replacing the first interface with the second interface, it includes:

The VMM message management service instructs the second virtual system to add a USB device.

According to an embodiment of the present application, when starting the first virtual system and the second virtual system, it also includes:

Mounting the shared directory configured in the main operating system to the first virtual system and the second virtual system by the VMM service;

The first application information and the second application information are respectively collected by the first icon service and the second icon service, the first application information includes a first application icon and first path information of the first application, so The second application information includes a second application icon and second path information of the second application;

updating the first application information and the second application information to the shared directory by the first icon service and the second icon service, respectively;

When displaying the first interface of the first virtual system, it also includes:

reading the second application information recorded in the shared directory by the first icon service;

The second application icon is displayed on the first interface by the first icon service according to the second application information.

According to an embodiment of the present application, when the first application and/or the second application are updated, the first application information and/or the second application information in the shared directory are updated synchronously.

According to an embodiment of the present application, the virtual control area is provided by a display component of an interactive smart panel;

After starting the interactive smart tablet and displaying the customized boot screen, it includes:

The display screen component sends a query instruction to the first virtual system and the second virtual system through the VMM service, so as to obtain the first system icon of the first virtual system and the second virtual system through the query instruction. The second system icon of the virtual system;

adding the first system icon and the second system icon in the virtual control area by the display screen component.

According to an embodiment of the present application, the receiving the second selection instruction includes:

generating a second selection instruction by the display screen component according to a touch selection operation acting on a second system icon;

The VMM message management service of the VMM service receives the second selection instruction sent by the display screen component;

In response to the second selection instruction, replacing the first interface with the fourth interface includes:

In response to the second selection instruction, the VMM message management service instructs to delete the touch device of the first virtual system;

Instructing by the VMM message management service to resume running the second virtual system corresponding to the target system icon;

obtaining a fourth interface of the second virtual system by the VMM service, and replacing the first interface with the fourth interface;

A USB device is added to the second virtual system by the VMM message management service.

In the second aspect, in an embodiment of the present application, a switching control device is also provided, including:

The first receiving module is configured to receive a device startup instruction;

The first response module is configured to respond to the device startup instruction, start the interactive smart tablet and display a customized startup screen;

The first display module is configured to display the first interface of the first virtual system after the startup screen stops displaying, the first interface is the system desktop of the first virtual system, and the first interface displays the first The first application icon of the first application installed in the virtual system and the second application icon of the second application installed in the second virtual system, the second virtual system is at least one;

The second receiving module is configured to receive a first selection instruction, the first selection instruction is used to select a target application icon among the second application icons;

The second response module is configured to replace the first interface with a second interface in response to the first selection instruction, and the second interface is an application interface displayed after the second application corresponding to the target application icon is started. .

In a third aspect, in an embodiment of the present application, an interactive smart tablet is also provided, including:

one or more processors;

memory for storing one or more programs;

When the one or more programs are executed by the one or more processors, the one or more processors are made to implement the handover control method as described in the first aspect.

In a fourth aspect, an embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the handover control method as described in the first aspect is implemented.

In the fifth aspect, an embodiment of the present application further provides a switching control program. When the program is executed, operations related to the switching control method described in the first aspect can be realized.

In one embodiment of the present application, the interactive smart tablet is started and a custom startup screen is displayed by receiving a device startup command. After the startup screen stops displaying, the first interface of the first virtual system is displayed, and the first interface displays the first The first application icon of the virtual system and the second application icon of the second virtual system, after that, receiving a first selection instruction for selecting the second application icon, and replacing the first interface with the second application according to the first selection instruction The technical means of the second interface after the second application corresponding to the icon is opened solves the technical problems of high equipment cost and high hardware design complexity when the interactive smart tablet supports multiple operating systems, and uses virtualization technology to use each operating system as a virtual The operating system is installed in the interactive smart tablet, and there is no need to configure the corresponding physical CPU for each virtual operating system, only the physical CPU of the main operating system needs to be configured, which reduces the equipment cost and hardware design complexity. Moreover, when virtualization technology is applied to small-sized devices such as mobile phones and tablet computers, most of them are aimed at a single operating system. For example, when virtualization technology is applied to the Android system, it can accelerate the startup speed of the Android system. However, multiple operations cannot be applied to the device. system, and in an embodiment of the present application, a plurality of operating systems are installed in a large-sized interactive smart tablet through virtualization technology, thereby improving the functionality of the interactive smart tablet. At the same time, in addition to displaying the application icons of its own virtual operating system on the system interface of the virtual operating system, it also displays application icons of other virtual operating systems, so that by selecting an application icon of another virtual operating system in one virtual operating system, The switching of the virtual operating system and the opening of the corresponding application program realize the fast switching and starting of the application program in multiple virtual operating systems.

Description of drawings

FIG. 1 is a flowchart of a handover control method provided by an embodiment of the present application;

FIG. 2 is a first frame diagram of the system provided by an embodiment of the present application;

FIG. 3 is a flowchart of another handover control method provided by an embodiment of the present application;

FIG. 4 is a flow chart of VMM service operation provided by an embodiment of the present application;

Fig. 5 is a schematic diagram of a first interface provided by an embodiment of the present application;

FIG. 6 is a flow chart of application startup provided by an embodiment of the present application;

FIG. 7 is a flow chart of application program switching provided by an embodiment of the present application;

FIG. 8 is a flowchart of a VMM service and icon service provided by an embodiment of the present application;

FIG. 9 is a second framework diagram of the system provided by an embodiment of the present application;

FIG. 10 is a flowchart of another handover control method provided by an embodiment of the present application;

FIG. 11 is a schematic diagram of a virtual control area provided by an embodiment of the present application;

FIG. 12 is a flow chart of virtual operating system switching provided by an embodiment of the present application;

FIG. 13 is a flowchart of a VMM service provided by an embodiment of the present application;

FIG. 14 is a schematic structural diagram of a switching control device provided by an embodiment of the present application;

Fig. 15 is a schematic structural diagram of an interactive smart tablet provided by an embodiment of the present application.

detailed description

The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are used to explain the present application rather than limit the present application. In addition, it should be noted that, for the convenience of description, only some structures related to the present application are shown in the drawings but not all structures.

An embodiment of the present application provides a handover control method, which can be executed by a handover control device, which can be implemented by software and/or hardware, and the handover control device can be two or more A physical entity constitutes, or a physical entity constitutes. For example, the switching control device may be a smart device such as a laptop computer, a mobile phone, a tablet computer, or an interactive smart tablet. In one embodiment, the description is made by taking the switching control device as an interactive smart tablet as an example. The interactive smart tablet can be selected as a large-sized interactive smart tablet. A large-sized interactive smart tablet refers to an interactive smart tablet that reaches a set size threshold. The size threshold can be set according to the actual situation. For example, when the size threshold is 55 inches, If the size of the interactive smart tablet reaches 55 inches, it can be considered as a large-sized interactive smart tablet.

Exemplarily, the interactive smart tablet is installed with multiple types of operating systems, wherein the operating systems include but are not limited to iOS system, Android system, Linux system, Windows system, UOS system and so on. In one embodiment, the interactive smart tablet is installed with a Linux system, and the Linux system is installed in a chip of the interactive smart tablet as a main operating system of the interactive smart tablet, and the chip can be understood as a physical CPU. The interactive smart tablet is also installed with operating systems such as Android system, Windows system, and UOS system, and the above operating systems are installed in the Linux system in the form of a virtual operating system. Generally speaking, a virtual operating system refers to an operating system installed on the basis of a virtualization technology. Among them, virtualization usually means that computing elements run on a virtual basis instead of a real basis. Virtualization technology can expand the capacity of hardware and simplify the reconfiguration process of software. When virtualization technology is applied, the Linux system is used as the Host OS of the interactive smart tablet. It can be understood that in virtualization technology, an operating system can be installed on a physical machine, and then virtualization software can be installed on this operating system, so that several partitions can be virtualized on the physical machine to install different operating systems respectively. , the operating system installed on the physical machine is called Host OS. When the interactive smart tablet is used as a physical machine, Host OS is the main operating system, which is a Linux system. In one embodiment, each virtual operating system is implemented by a corresponding virtual machine, and a virtual machine refers to a complete computer system that is simulated by software and has complete hardware system functions and runs in a completely isolated environment. A virtual machine corresponds to an interactive A partition in the smart tablet to install the corresponding virtual operating system. Each virtual machine includes a virtual GPU and a virtual CPU, and the virtual GPU generates and sends images during the running of the virtual operating system, such as the system desktop of the virtual operating system and the application interface of the running application program installed in the virtual operating system. The virtual CPU implements the operation of the virtual operating system. In one embodiment, the Host OS communicates with each virtual operating system through a virtual machine manager (Virtual Machine Manager, VMM) service in the Host OS, wherein the VMM service is a system service of the Host OS for starting and managing Multiple virtualization systems.

Exemplarily, the interactive smart panel further includes at least one display screen, which may be a display screen with a touch function or a display screen without a touch function. In one embodiment, the interactive smart The display screen with the control function is described as an example, that is, the user of the interactive smart tablet can control the interactive smart tablet by touching the display on the display screen. At this time, the interactive smart panel is also equipped with an interactive smart panel module, which includes components related to display, touch control and output such as a displayed screen, touch control and high definition multimedia interface (High Definition Multimedia Interface, HDMI) channel. In one embodiment, the VMM service can also perform data communication with the interactive smart panel module, so that when the display screen receives some touch operations related to the virtual operating system, the interactive smart panel module notifies the VMM service to respond to the touch operation , so as to control the virtual operating system, such as switching the currently running virtual operating system.

Exemplarily, the interactive smart tablet can install at least one application program based on each operating system (including the main operating system and the virtual operating system), where the implementation of the function of the application program is not limited. The application program may be a built-in application program of each operating system, or may be an application program downloaded from a third-party device or server. In one embodiment, the virtual operating system is used to install the application program as an example. At this time, each virtual operating system installs at least one application program, and the application icon of the installed application program can be displayed on the system desktop of the corresponding virtual operating system superior. In one embodiment, the Linux system does not have a desktop environment installed, that is, the Linux system is always running in the background, and for the user of the interactive smart tablet, the running interface of the Linux system will not be seen on the display screen. And each virtual operating system has a desktop environment, that is, when the user of the interactive smart tablet uses the virtual operating system, the system desktop of the virtual operating system can be displayed on the display screen.

Exemplarily, FIG. 1 is a flowchart of a handover control method provided by an embodiment of the present application. Referring to Fig. 1, the switching control method specifically includes:

Step 110, receiving a device startup instruction.

The device start command is used to start the interactive smart tablet. When the interactive smart tablet is turned off, the interactive smart tablet can be turned on through the device startup command.

Step 120: In response to the device startup instruction, start the interactive smart tablet and display a customized startup screen.

The interactive smart tablet starts up according to the device startup command, and starts the Host OS. In one embodiment, during the startup process, a startup screen is displayed. Exemplarily, there is no graphical interface (that is, no boot screen) during the boot process of the Linux system of the Host OS. At this time, the open source plymouth project can support a custom boot screen to display a custom startup screen. plymouth is an open source component of the splash screen. The self-defined start-up screen can be set according to actual conditions, such as a logo that is set as the self-defined start-up screen, and at this time, during the start-up process, the interactive smart panel displays the logo.

Step 130: After the start-up screen stops displaying, display the first interface of the first virtual system, the first interface is the system desktop of the first virtual system, and the first interface displays the first application of the first application installed in the first virtual system The icon and the second application icon of the second application installed in the second virtual system, the second virtual system is at least one.

In one embodiment, during the startup process of the interactive smart tablet, the VMM service is automatically run, and then all the virtual operating systems are started. When the default virtual operating system outputs the screen, stop displaying the current boot screen. Wherein, the default virtual operating system is a pre-set virtual operating system. After the interactive smart panel is started, the system desktop of the default virtual operating system is displayed, that is, after the startup is completed, the default virtual operating system is the virtual operating system running in the foreground. At this point, both the main operating system and the default virtual operating system are running, and other virtual operating systems are suspended in the background. Background suspension means that the virtual operating system saves the current state, and when the virtual operating system runs again, it is still in the saved state. In one embodiment, the default virtual operating system is recorded as the first virtual system, and other virtual operating systems are recorded as the second virtual system. Wherein, there may be one or more second virtual systems.

In one embodiment, when the output screen of the first virtual system is detected, the start-up screen is stopped, and then the screen of the first virtual system is displayed, wherein the currently displayed interface of the first virtual system can be recorded as the first virtual system's first screen. an interface. Generally speaking, after the virtual operating system is started, the corresponding system desktop is firstly displayed. Therefore, the first interface may be the system desktop of the first virtual system.

Exemplarily, the first interface displays the application icons of the application programs installed in the first virtual system, the application programs installed in the first virtual system may be recorded as the first application, and the application icons of the first application may be recorded as the first application icon. Optionally, the first interface may also display other content, such as displaying application icons of application programs installed in other virtual operating systems. Exemplarily, the application program installed in the second virtual system is recorded as the second application, and the application image of the second application is marked as the second application icon.

In an embodiment, the first interface further displays a second application icon of a second application installed in the second virtual system. Exemplarily, during the startup process of each virtual operating system, the VMM service may acquire application information of the application programs in each virtual operating system, where the application information may include application icons of the application programs and path information of the application programs. When the first virtual system displays the first interface, the first virtual system can obtain the application information of the second application in the second virtual system through the VMM service, and display the second application icon of the second application on the first interface according to the application information middle. Optionally, all second application icons in each second virtual system may be displayed on the first interface, and part of the second application icons in each second virtual system may also be displayed on the first interface. When displaying part of the second application icons, the second application icons that can be displayed on the first interface may be preset in the second virtual system. In one embodiment, the description is made by taking the example of displaying part of the second application icons in each second virtual system on the first interface.

In one embodiment, each virtual operating system is provided with a corresponding icon service, and the icon service can obtain the application information of its own virtual operating system and send it to the VMM service, and can also obtain the application information of other virtual operating systems from the VMM service to Realize displaying application icons of other virtual operating systems on the system desktop of its own virtual operating system. In one embodiment, when the VMM service is running, a configured shared directory is mounted to each virtual operating system as a file system device. At this time, the icon service of each virtual operating system can write the application information of its own virtual operating system into the shared directory, and can obtain the application information of other virtual operating systems by accessing the shared directory.

Step 140, receiving a first selection instruction, where the first selection instruction is used to select a target application icon among the second application icons.

Exemplarily, after the second application icon is displayed in the first interface, the user of the interactive smart tablet can make the interactive smart tablet open the second application in the second virtual system by selecting the second application icon in the first interface. In one embodiment, the instruction for selecting the second application icon in the first interface is marked as the first selection instruction, and the second application image selected by the first selection instruction is marked as the target application icon. Optionally, the user can issue the first selection instruction by touching (such as clicking, long pressing, etc.) the second application icon, or the user can use an external device (such as a mouse, keyboard, etc.) , smart pen, etc.) to select the second application icon to issue the first selection instruction.

Step 150, in response to the first selection instruction, replace the first interface with a second interface, the second interface is an application interface displayed after the second application corresponding to the target application icon is launched.

Exemplarily, responding according to the first selection instruction, during the response process, the interactive smart tablet can determine the corresponding second application and the second virtual system where the second application is located according to the target application icon, and then start the second virtual system The second application in the system, and display the application interface after the second application is started. In one embodiment, the application interface displayed after the second application is started is recorded as the second interface, and at this time, the displayed first interface is replaced with the second interface.

In one embodiment, when receiving the first selection instruction, the first virtual system is a virtual operating system running in the foreground, and the second virtual system is a virtual operating system suspended in the background. When responding to the first selection instruction, the first virtual system needs to be suspended in the background A virtual system, and resume running the second virtual system, that is, run the second virtual system in the foreground, and open the second application corresponding to the target application icon in the second virtual system, so that the second virtual system outputs the second Interface, after that, replace the first interface with the second interface.

In one embodiment, after receiving the first selection instruction, the first virtual system determines the second virtual system to which the target application icon belongs according to the target application icon selected by the first selection instruction, and then, the first virtual system compares the target application icon and its belonging The second virtual system of the second virtual system is sent to the Host OS, and the Host OS background suspends the first virtual system, resumes the operation of the second virtual system to which it belongs, and instructs the second virtual system to open the second application corresponding to the target application icon.

In one embodiment, the icon service of the first virtual system sends the icon of the target application and the second virtual system to which it belongs to the VMM service, and then the VMM service notifies the icon service of the second virtual system, so that the icon of the second virtual system The service starts the corresponding second application.

It can be understood that when the first application icon and the second application icon are displayed on the first interface, the user can also select the first application icon. At this time, the first virtual system can directly start the first application corresponding to the first application icon. That is, after the user selects an application icon in the first interface, the first virtual system confirms whether the selected application icon is the first application icon or the second application icon, and if it is the first application icon, directly starts the first application icon , if it is the second application icon, the above method is used to switch the virtual operating system and start the corresponding second application, and then display the corresponding second interface.

As mentioned above, by receiving the device start command, start the interactive smart tablet and display the customized boot screen, after the boot screen stops displaying, the first interface of the first virtual system is displayed, and the first interface displays the first application icon of the first virtual system And the second application icon of the second virtual system, after that, receiving the first selection instruction for selecting the second application icon, and according to the first selection instruction, replacing the first interface with the second application corresponding to the second application icon to open The latter technical means of the second interface solves the technical problems of high equipment cost and high hardware design complexity when the interactive smart panel supports multiple operating systems, and uses virtualization technology to install each operating system as a virtual operating system on the interactive smart panel. In the virtual operating system, there is no need to configure a corresponding physical CPU for each virtual operating system, only the physical CPU of the main operating system needs to be configured, which reduces equipment cost and hardware design complexity. Moreover, when virtualization technology is applied to small-sized devices such as mobile phones and tablet computers, most of them are aimed at a single operating system. For example, when virtualization technology is applied to the Android system, it can accelerate the startup speed of the Android system. However, multiple operations cannot be applied to the device. system, and in an embodiment of the present application, a plurality of operating systems are installed in a large-sized interactive smart tablet through virtualization technology, thereby improving the functionality of the interactive smart tablet. At the same time, in addition to displaying the application icons of its own virtual operating system on the system interface of the virtual operating system, it also displays application icons of other virtual operating systems, so that by selecting an application icon of another virtual operating system in one virtual operating system, The switching of the virtual operating system and the opening of the corresponding application program realize the fast switching and starting of the application program in multiple virtual operating systems.

In one embodiment, each virtual operating system is provided with an iocn Server (icon service), and the VMM service of the Host OS communicates with each icon service to display and manage the application icons of the application programs in each virtual operating system. . Fig. 2 is the first frame diagram of the system that an embodiment of the present application provides, with reference to Fig. 2, the operating system of interactive smart panel includes Host OS (for Linux system) and a plurality of virtual operating systems, and a plurality of virtual operating systems includes Windows system, Android system, UOS system, etc., wherein, the Windows system is realized through the Windows virtual machine (Windows VM), the Android system is realized through the Android virtual machine (Android VM), and the UOS system is realized through the UOS virtual machine (UOS VM). The Windows icon server is installed in the Windows system, the Android icon server is installed in the Android system, and the UOS icon server is installed in the UOS system. The VMM service communicates with each icon service to display and manage application icons of application programs in each virtual operating system, such as displaying application icons of other virtual operating systems in each virtual operating system. Wherein, the icon service of the first virtual system is marked as the first icon service, and the icon service of the second virtual system is marked as the second icon service.

Fig. 3 is a flowchart of another handover control method provided by an embodiment of the present application. The switching control method shown in FIG. 3 is applicable to the framework shown in FIG. 2 . Referring to Fig. 3, the switching control method includes:

Step 210, receiving a device startup instruction.

Step 220: In response to the device startup instruction, start the main operating system of the interactive smart tablet. The first virtual system and the second virtual system are installed in the main operating system, and the main operating system is an operating system without a desktop environment.

Wherein, the main operating system refers to the Host OS. In one embodiment, the Host OS is a Linux system, and the Linux system does not have a desktop environment. A first virtual system and a second virtual system are installed in the Linux system. The first virtual system and the second virtual system include a Windows system, an Android system, a UOS system, and the like.

Step 230 , during the start-up process of the main operating system, display a customized start-up screen.

In one embodiment, the Linux system supports a custom boot screen through the open source plymouth project.

Step 240, start the first virtual system and the second virtual system.

During the startup process of the main operating system, the VMM service is automatically run. When the VMM service is running, the first virtual system and the second virtual system are started. At this time, the interactive smart tablet also displays a customized startup screen, and starts the first virtual system and the second virtual system in the background. In one embodiment, the VMM service sets a background listening port, and the listening port can perform data communication with each virtual operating system.

In one embodiment, step 240 may include step 241-step 243:

Step 241, read the configuration file of the VMM service in the host operating system.

When the VMM service is running, in the initialization phase, the configuration file of the VMM service is read according to the running parameters. Wherein, the running parameters are parameters during the running process of the main operating system, and the configuration file is configuration parameters and initial settings of the VMM service. The specific content of operating parameters and configuration files can be set according to actual conditions.

Step 242: Analyze configuration parameters of the first virtual system and the second virtual system according to the configuration file.

The normal operation of the VMM service can be realized through configuration files. In one embodiment, the configuration parameters of each virtual operating system can be parsed out through the configuration file, that is, the configuration parameters of the first virtual system and the second virtual system can be parsed out. In one embodiment, the configuration parameters of the virtual operating system may be the configuration parameters of each virtual machine on which the virtual operating system is installed. Through the configuration parameters, each virtual machine can be run, and then each virtual operating system can be run. Wherein, the content of the configuration parameter can be set according to the actual situation. In one embodiment, configuration parameters include: the shared directory of Host OS and virtual operating system (equivalent to the shared directory of configuration); the number of virtual machines (equivalent to the number of virtual operating systems), the virtual operation of each virtual machine System information, and the default virtual machine (equivalent to confirming which virtual operating system the first virtual system is); the peripheral (i.e., external device) information of the interactive smart panel; the port for each virtual machine to communicate with the VMM service (equivalent to the VMM service and each virtual operating system for data communication); the virtual operating system image path of each virtual machine; the configuration parameters of the virtual GPU of each virtual machine; the virtual network configuration parameters and execution scripts of each virtual machine, The execution script is used to manage the virtual network of the virtual operating system; the configuration parameters of the virtual CPU of each virtual machine; the configuration parameters of the memory of each virtual machine; the boot file information of each virtual machine, and the boot file information is used to realize virtual The booting of the machine; the USB port designated by each virtual machine, through which the virtual machine can be connected to an external USB device; the virtual socket ID information of each virtual machine, except for the virtual GPU message, other messages in the virtual machine are Communication is based on a common socket mechanism, and socket communication can be realized through a virtual socket ID.

Step 243, start the first virtual system and the second virtual system according to the configuration parameters.

In one embodiment, after parsing the configuration parameters, all virtual machines are started, that is, the first virtual system and the second virtual system are started.

In one embodiment, when starting the first virtual system and the second virtual system, it also includes: mounting the shared directory configured in the main operating system to the first virtual system and the second virtual system by the VMM service; The icon service and the second icon service respectively collect the first application information and the second application information, the first application information includes the first application icon and the first path information of the first application, and the second application information includes the second application information of the second application Icon and second path information; the first application information and the second application information are respectively updated to the shared directory by the first icon service and the second icon service.

Exemplarily, when the main operating system is started, the VMM service is automatically run, and the shared directory set by the VMM service configuration (the shared directory can be determined through configuration parameters), the shared directory is used to record the application information of the application icon in each virtual operating system , such as recording application icons of application programs installed in each virtual operating system and corresponding path information, where the path information is used to describe the path where the application programs are located. When each virtual operating system is started, the VMM service uses the shared directory as a file system device and mounts it to each virtual operating system (it can also be understood as mounting to each virtual machine). The file system device refers to the device belonging to the file system (management and storage of file information) in the operating system, and mounting to each virtual operating system means that the virtual operating system directly uses the shared directory. In one embodiment, the VirtFS virtualized file system is mounted to each virtual operating system. Among them, VirtFS is a system layer virtualization technology, which can directly transfer the system service interface (equivalent to the interface of the shared directory) of the host machine (equivalent to the interactive smart tablet) to the virtual machine for use.

Exemplarily, the icon service in each virtual operating system is run as a system service of the virtual operating system during the startup process of the virtual operating system. In one embodiment, the application events that the icon service can handle include application icon collection, and application icon collection refers to writing application information of application programs installed in the virtual operating system into a shared directory. Exemplarily, when the first icon service is running, the application information of the first application icon in the first virtual system is collected, wherein the application information of the first application icon is recorded as the first application information, and each first application icon corresponds to a The first application information, where the first application information includes a first application icon and first path information, where the first path information refers to path information of the first application in the first virtual system. After the first icon service collects the first application information, it may write the first application information into the shared directory. Similarly, when the second icon service is running, the application information of the second application icon in the corresponding second virtual system is collected, wherein the application information of the second application icon is recorded as the second application information, and each second application icon corresponds to a The second application information includes a second application icon and second path information, and the second path information refers to path information of the second application in the second virtual system. After the second icon service collects the second application information, it may write the second application information into the shared directory.

In an embodiment, the application event that the icon service can handle also includes: updating the shared directory. Exemplarily, when the first application and/or the second application are updated, the first application information and/or the second application information in the shared directory are updated synchronously. For example, when the first application is added and/or deleted in the first virtual system, the first application installed in the first virtual system changes, that is, the first application is updated. At this time, the first icon service Writing the first application information of the newly added first application into the shared directory and/or deleting the first application information of the first application in the shared directory.

Step 250, when the first virtual system outputs the startup screen, stop displaying the startup screen.

In one embodiment, the shared directory is mounted to the stage of each virtual operating system, and the VMM service can also monitor the virtual GPU of the default virtual operating system (ie, the first virtual system) to monitor that the virtual GPU is ready to send the first virtual system screen message. Wherein, when the virtual GPU is ready to send the first virtual system picture, its state will change, that is, the state changes to the state of the output picture. At this time, the VMM service determines to monitor the message that the virtual GPU is ready to send the first virtual system picture.

When the first virtual system is ready to send the first virtual system screen, the first virtual system outputs the corresponding screen. In one embodiment, after the first virtual system is started, the first output screen is the startup screen during the startup process of the first virtual system. The startup screen may be a preset screen in the first virtual system. When the VMM service determines to monitor the message that the virtual GPU is ready to send the first virtual system screen, it stops displaying the startup screen by stopping the plymouth service.

Step 260, after the start-up screen stops displaying, display the start-up screen of the first virtual system, and suspend the second virtual system in the background.

After stopping displaying the start-up picture, display the start-up picture output by the virtual GPU of the first virtual system. The virtual operating system running on the first virtual system as the foreground sends a suspend command to the second virtual system, so that the second virtual system is suspended in the background, that is, the second virtual system is suspended.

In one embodiment, when each virtual operating system is running, in order to optimize the operating efficiency of the virtual operating system, the VMM service can send a query command to the virtual CPU of each virtual operating system, and the virtual CPU can return the process and ID information of the virtual CPU according to the query command , so that the VMM service can specify the running status of the virtual operating system through the process and ID information of the virtual CPU. Wherein, the process of the virtual CPU refers to each process currently running in the virtual CPU. The VMM service can bind each virtual CPU to the physical CPU of the interactive smart panel through the taskset command, wherein the physical CPU can be regarded as a processor installed in the interactive smart panel, which is installed with a Linux system. The taskset command is a command used to view and set the usage of physical CPU cores in the Linux system.

Step 270, start the VMM message management service in the VMM service, the VMM service is a service provided by the main operating system, and the VMM message management service drives the management and operation of the first virtual system and the second virtual system.

The VMM message management service drives the management and operation of the virtual operating system through messages. In one embodiment, the VMM service may include multiple message threads, wherein the multiple message threads include at least a virtual machine message thread, an application message thread, a virtual machine screen status message thread, and a USB peripheral message thread. Among them, the virtual machine message thread can monitor the port of communication between each virtual machine and VMM service in the configuration parameters, so as to realize the following types of message communication between the VMM service and each virtual operating system: add and delete USB peripherals of the virtual operating system Message communication; message communication for adding and deleting virtual operating system touch devices (device used to realize touch control in the display screen); message communication for suspending and resuming virtual operating system and querying virtual operating system status; switching display Message communication of the virtual operating system; message communication of binding the virtual CPU of the virtual operating system to the physical CPU. The application message line can listen to the virtual socket ID of each virtual machine in the configuration parameters, so as to realize the following types of message communication between the VMM service and each virtual operating system: open the application program selected by the user in the virtual operating system suspended in the background message communication. The virtual machine screen state message thread monitors the state of the virtual GPU of each virtual operating system, so as to judge whether the switching is completed through the state of the virtual GPU when the virtual operating system is switched. Wherein, the status of the virtual GPU refers to whether the virtual GPU is ready to output images. The USB peripheral message thread monitors hot plug messages of all USB peripherals of the interactive smart tablet, wherein the USB peripherals are external devices connected to the interactive smart tablet through USB. Hot swapping refers to plugging or unplugging without turning off the power. When a USB peripheral is hot-plugged, the USB peripheral message thread can send the USB hot-plug message to the VMM service, and the VMM service converts the message into a corresponding USB peripheral message and sends it to the corresponding virtual operating system. In order to make the virtual operating system clear about the hot plugging situation of the USB peripheral. In one embodiment, the messages communicated by each process in the VMM message management service can be divided into two categories: one is the messages communicated in the virtual machine screen status message thread when monitoring the state of the virtual GPU. uevnet message mechanism; one type is messages other than the above, that is, messages communicated in the virtual machine message thread, application message thread, and USB peripheral message thread. This type of message adopts the general socket mechanism. Optionally, this type of message The format is: {Message Header}{Message Type}{Separator}{Message Parameter}{Message Footer}, where the message header indicates the beginning of the message, the message end indicates the end of the message, and the separator is used to distinguish the message type and message parameters, the message type refers to the message type of communication in the above-mentioned virtual machine message thread, application message thread, and USB peripheral message thread. In addition, the above message types can be divided into message with parameter and message without parameter parameter message. Wherein, for a message without parameters, the message parameter in the message format is empty. For messages with parameters, write the corresponding parameters in the message parameters in the message format. For example, when the message type is that the second virtual system suspended in the background opens a second application, relevant content of the second virtual system and relevant content of the second application must be written in the message parameters.

Fig. 4 is the flow chart of VMM service operation provided by one embodiment of the present application. With reference to Fig. 4, based on steps 240 to 270, it can be seen that during the startup process of the Linux system, the VMM service runs, and when it runs, it first goes through the initialization phase (that is, according to the running Parameter reads VMM configuration file), afterwards, analyze the configuration parameter of running each virtual operating system, afterward, start each virtual operating system (equivalent to starting each virtual machine) according to the configuration parameter, afterward, when the first virtual system outputs the splash screen, The startup screen of the first virtual system is displayed, and the VMM message management service is started.

Step 280: After the startup screen stops displaying, display the first interface of the first virtual system, the first interface is the system desktop of the first virtual system, and the first interface displays the first application of the first application installed in the first virtual system The icon and the second application icon of the second application installed in the second virtual system, the second virtual system is at least one.

Exemplarily, after the first virtual system is started, stop displaying its corresponding startup screen, and display the system desktop of the first virtual system, that is, display the first interface.

In one embodiment, when the first application information and the second application information are written in the shared directory, displaying the first interface of the first virtual system includes steps 281-282:

Step 281. The first icon service reads the second application information recorded in the shared directory.

Exemplarily, after the first virtual system is started, the first icon service reads the second application information corresponding to all the second virtual systems in the background according to the first application information and the second application information in the shared directory, that is, the first The icon service reads out all the second application information.

Step 282: The first icon service displays the second application icon on the first interface according to the second application information.

Exemplarily, the corresponding second application icon is determined according to the second application information, and the second application icon is displayed on the first interface. At this time, each first application icon and each second application icon are displayed on the first interface. Wherein, the sorting rules of the first application icons and the second application icons can be set according to actual conditions. For example, FIG. 5 is a schematic diagram of the first interface provided by an embodiment of the present application. With reference to FIG. 5, the Windows system is used as the first virtual system, and the Android system and the UOS system are used as the second virtual system as an example for description. At this time, in In the first interface, the application icons of the Windows system, the application icons of the Android system, and the application icons of the UOS system are displayed in sequence.

Step 290: Receive a first selection instruction, where the first selection instruction is used to select a target application icon among the second application icons.

Exemplarily, when the first virtual system detects that a certain second application icon is selected by the user, it determines that the first selection instruction is received.

Step 2100: The first icon service generates a switching message according to the first selection instruction, and the switching message includes the target application icon and the second virtual system to which the target application icon belongs.

The application event that the icon service can handle also includes: opening a specified application, for example, when the user thinks of opening the application program of the virtual operating system in the background, the icon service can send the relevant message (ie switching message) to the VMM message management service Application message thread. Exemplarily, after receiving the first selection instruction, the first icon service determines the selected target application icon and the second virtual system to which the target application icon belongs. Optionally, the target application icon can be specified according to the second application information. The second virtual system to which the application icon belongs, and then write the target application icon and the second virtual system to which the target application icon belongs to a message, wherein the target application icon and the second virtual system to which the target application icon belongs are written The messages are recorded as handover messages.

Step 2110, the first icon service sends the switching message to the VMM message management service.

Exemplarily, the first icon service sends the switching message to the VMM message management service, specifically to the application message thread of the VMM message management service.

Step 2120: According to the switching message, the VMM message management service notifies the second icon service of the second virtual system to which the target application icon belongs to start the second application corresponding to the target application icon.

Exemplarily, after the application message thread of the VMM message management service receives the switching message, it notifies the second icon service of the corresponding second virtual system according to the switching message, that is, the application message thread sends to the second icon service the icon corresponding to the opened target application. For the message of the second application, the second icon service opens the second application according to the message of the application message thread.

In one embodiment, step 2120 includes step 2121-step 2126:

Step 2121, according to the switching message, the VMM message management service instructs to delete the touch device of the first virtual system.

A touch device refers to a device that realizes a touch operation. For example, a touch device refers to a touch detection device and a touch chip related to a touch operation installed in a display screen. For example, a display screen can be an infrared touch screen, an electromagnetic touch screen 1. One or more types of capacitive touch screens. When the display screen is an infrared touch screen, the touch detection device is an infrared touch frame, and the touch chip is connected to the infrared touch frame. When the user touches the display screen, the infrared The touch frame detects the touch action, and the touch chip determines the touch position and touch time according to the touch action detected by the infrared touch frame, so as to realize the detection touch operation. Exemplarily, the touch device of the first virtual system refers to a touch device that can be used by the first virtual system, for example, when the first virtual system is running in the foreground, the touch device on the display screen belongs to the touch device of the first virtual system, At this time, the touch operation detected by the touch device may be regarded as an operation performed on the first virtual system.

After the application message thread of the VMM message management service receives the switching message, the virtual machine message thread of the VMM message management service sends a message of deleting the touch device to the first virtual system, and after receiving the message, the first virtual system deletes the first touch device. The touch device of the virtual system, at this time, the touch operation received by the touch device has nothing to do with the first virtual system.

Step 2122, the VMM message management service instructs to delete the USB device of the first virtual system.

The USB device of the first virtual system refers to the USB peripheral of the first virtual system, that is, the USB peripheral used by the first virtual system.

Exemplarily, after deleting the touch device of the first virtual system, the virtual machine message thread of the VMM message management service sends a message of deleting the USB peripheral to the first virtual system, and after receiving the message, the first virtual system deletes the first virtual system. A USB device of a virtual system, at this time, the operation received by the USB device has nothing to do with the first virtual system.

Step 2123, the VMM message management service instructs the background to suspend the first virtual system.

Exemplarily, after the USB device of the first virtual system is deleted, the virtual machine message thread of the VMM message management service sends a background suspension message to the first virtual system, and after receiving the message, the first virtual system hangs in the background At this time, the first virtual system stops running in the foreground.

Step 2124: The VMM message management service instructs to resume running the second virtual system to which the icon of the target application belongs.

Exemplarily, after the first virtual system is suspended in the background, the virtual machine message thread of the VMM message management service sends a resume message to the second virtual system corresponding to the target application icon, and after the second virtual system receives the message, It is running in the foreground, and the state of the second virtual system during running is the same as that of the second virtual system when it is suspended. At this time, the second virtual system is running in the foreground, so as to realize the switching of the virtual operating system. Optionally, when the second virtual system is running in the foreground, the second icon service works, the second icon service can read the first application information in the shared directory and the second application information of other second virtual systems, and based on the read content The first application icon corresponding to the first application information and the second application icon corresponding to the second application information are displayed on the system desktop of the second virtual system, that is, in the system desktop of the second virtual system, the application except the application program installed by itself is displayed icon, and also displays app icons for applications installed in other virtual operating systems.

Step 2125, the VMM message management service instructs the second virtual system to add a touch device.

Exemplarily, after the second virtual system runs in the foreground, the virtual machine message thread of the VMM message management service sends a message of adding a touch device to the second virtual system, and after receiving the message, the second virtual system adds a touch device, such as The touch device deleted from the first virtual system is added to the second virtual system, and at this time, the touch operation received by the touch device is a touch operation for controlling the second virtual system.

Step 2126: The VMM message management service notifies the second icon service of the second virtual system to start the second application corresponding to the target application icon.

After the touch device is added, the application message thread of the VMM message management service sends a message of opening the second application of the target application icon to the second icon service of the second virtual system, so as to notify the second icon service to open the second application of the target application icon.

Step 2130, start the second application corresponding to the target application icon by the second icon service.

Exemplarily, after receiving the message sent by the application message thread, the second icon service opens the second application according to the message. For example, FIG. 6 is a flow chart of application startup provided by an embodiment of the present application. Referring to FIG. 6, the application message thread of the VMM message management service sends an open target application message to the second icon service of the second virtual system through a virtual socket. For the message of the second application of the icon, after receiving the message, the second icon service opens the second application through the interface of the second application corresponding to the target application icon in the second virtual system, so as to start the second application in the second virtual system.

Step 2140, obtain the second interface of the second application by the VMM service, and replace the first interface with the second interface.

Exemplarily, after the second application is started, the VMM service obtains the screen output by the virtual GPU in the second virtual system, that is, obtains the second interface, and replaces the first interface in the display screen with the second interface. At this time, the virtual machine screen status message thread of the VMM message management service can determine whether the switching is successful by monitoring the virtual GPU status of the second virtual system.

In one embodiment, after replacing the first interface with the second interface, the method further includes: instructing the second virtual system to add a USB device by the VMM message management service. Exemplarily, after the second interface is displayed, the virtual machine message thread of the VMM message management service sends a message of adding a USB device to the second virtual system, and after receiving the message, the second virtual system adds the USB device of the second virtual system. Devices, such as adding a USB device deleted from the first virtual system to the second virtual system, at this time, the USB device can be used by the second virtual system.

FIG. 7 is a flowchart of application program switching provided by an embodiment of the present application. Referring to Fig. 7, after receiving the switch message, the VMM message management service first deletes the touch device of the first virtual system (running in the foreground), and then deletes the USB device of the first virtual system, and then suspends the first virtual system and restores the second The virtual system runs, instructs the second virtual system to add a touch device, and then notifies the second virtual system to open the second application corresponding to the target application icon, switches the first interface to the second interface, and then adds a USB device for the second virtual system to Switching the first virtual system to the second virtual system and starting the second application corresponding to the target application icon in the second virtual system are implemented.

On the basis of the above, FIG. 8 is a flowchart of a VMM service and icon service provided by an embodiment of the present application. Referring to FIG. Read the VMM configuration file according to the operating parameters), and then start each virtual operating system (the first virtual system and the second virtual system) according to the configuration parameters parsed by the VMM configuration file, and then mount the shared directory to each virtual operating system. Afterwards, each application information (including application icon and path information) is written in the shared directory by the icon service of each virtual operating system. After each virtual operating system is started according to the configuration parameters parsed from the VMM configuration file, the VMM message management service must be run to monitor virtual machine messages (realized by virtual machine message threads), monitor application messages (realized by application message threads), and monitor and display System messages (realized by the virtual machine screen status message thread) and listening to USB device messages (realized by the USB peripheral message thread), wherein, when listening to application messages, the current virtual operating system can be switched according to the selection instruction of the target application icon Go to the virtual operating system to which the target application icon belongs, and then open the application program corresponding to the target application icon.

Step 2150, receiving an application exit instruction.

Exemplarily, the application exit instruction is an instruction to exit the currently opened second application. Optionally, when an operation of closing the second application or running the second application in the background is detected, the second virtual system determines that an application exit instruction is received. Optionally, the user can issue an application exit command by touching the display screen or operating the USB device.

Step 2160, in response to the application exit instruction, exit the second application corresponding to the target application icon, and replace the second interface with a third interface, the third interface is the system desktop of the second virtual system to which the second application belongs, and the third interface A first application icon of the first virtual system and a second application icon of the second virtual system are displayed.

Exemplarily, the second virtual system exits the second application after receiving the application exit instruction. It can be understood that when the application exit instruction is used to close the second application, exiting the second application refers to closing the second application. When the application exit instruction When used to run the second application in the background, exiting the second application refers to switching the second application to run in the background.

In one embodiment, when the second application is exited, the application interface of the second application is no longer displayed on the display screen. At this time, the display screen is switched from the second interface to the third interface. In one embodiment, the third interface is the system desktop of the second virtual system. By reading the shared directory, the first application icon corresponding to the first application information and the second application icon corresponding to the second application information of other second virtual operating systems are displayed on the system desktop of the second virtual system, that is, the second application icon corresponding to the second application information of the second virtual operating system. The system desktop of the second virtual system displays application icons of applications installed in other virtual operating systems in addition to application icons of applications installed by itself. Therefore, when the system desktop of the second virtual system is displayed, the first application icon of the first application installed in the first virtual system and the second application icon of the second application installed in the second virtual system are displayed on the system desktop. At this time, the user can start the application programs of other virtual operating systems by selecting the application icons of other virtual operating systems.

As mentioned above, by receiving the device startup command, start the main operating system of the interactive smart tablet, display a custom startup screen, and then start the first virtual system and the second virtual system, and stop displaying the startup screen when the first virtual system outputs the startup screen. screen, display the startup screen of the first virtual system, and suspend the second virtual system in the background, then start the VMM message management service, and after the startup screen stops displaying, display the first interface of the first virtual system, the first interface displays The first application icon of the first virtual system and the second application icon of the second virtual system receive the first selection instruction for selecting the second application icon, and the first icon service generates a switching message according to the first selection instruction and sends it to VMM message management service, the VMM message management service notifies the second icon service of the second virtual system to which the target application icon belongs to open the second application corresponding to the target application icon, so that the second icon service starts the second application, and the first interface The technical means of replacing the second interface solves the technical problems of high equipment cost and high hardware design complexity when the interactive smart tablet supports multiple operating systems, and uses virtualization technology to install each operating system as a virtual operating system on the interactive smart tablet. In the virtual operating system, there is no need to configure a corresponding physical CPU for each virtual operating system, only the physical CPU of the main operating system needs to be configured, which reduces equipment cost and hardware design complexity. Through the VMM service and the icon service of each virtual operating system, it is possible to manage and run multiple virtual operating systems. Through the shared directory, each virtual operating system can share its own application information, so that all virtual operating systems can be displayed on the desktop of each virtual operating system. The application icon of the virtual operating system, thereby realizing the quick switching and starting of the application. When switching the virtual operating system, the processing of the touch device is prior to the processing of the USB device, which can optimize the loading time for the touch device to realize the touch function when switching the virtual operating system. Open the second application of the target application icon before displaying the virtual GPU output screen. When the second application is opened, the second interface displayed at the first time can be the application interface after the second application is opened, and the second virtual system will not be displayed. The system desktop improves the user experience when switching applications.

In one embodiment, the virtual operating system can also be switched through the interactive smart tablet module and the VMM service of the interactive smart tablet. Exemplarily, the interactive smart panel module provides "channel management, screen sound setting system", which can be used to manage various components related to setting display, touch and output, etc., and the system can communicate with VMM service to realize Switch virtual operating systems. Fig. 9 is the second frame diagram of the system provided by one embodiment of the present application. With reference to Fig. 9, the PC module of the interactive smart panel refers to the module where the main operating system is located, and the Host OS in the PC module is a Linux system, and multiple virtual operating systems Including Windows system, Android system, UOS system, etc. Among them, the Windows system is realized through the Windows virtual machine, the Android system is realized through the Android virtual machine, and the UOS system is realized through the UOS virtual machine. The interactive smart panel module of the interactive smart panel provides "channel management, screen sound setting system", "channel management, screen sound setting system" communicates with the VMM service in the Host OS, and the VMM service communicates with each virtual operating system to The interactive smart tablet module implements switching of virtual operating systems. FIG. 10 is a flow chart of another switching control method provided by an embodiment of the present application. The switching control method shown in FIG. 10 is applicable to the framework shown in FIG. 9 . Referring to FIG. 10, when switching from one virtual operating system to another virtual operating system, the switching control method includes:

Step 310, receiving a device startup instruction;

Step 320: In response to the device startup instruction, start the interactive smart tablet and display a customized startup screen.

In response to the device startup instruction, start the main operating system of the interactive smart tablet, and display a customized startup screen during the startup process of the main operating system. For this step, reference may be made to related descriptions in step 120 and step 230 . During the startup process of the main operating system, the VMM service is automatically run. When the VMM service is running, start the first virtual system and the second virtual system, wherein starting the first virtual system and the second virtual system includes: reading the configuration file of the VMM service in the main operating system, and parsing the first virtual system according to the configuration file. The configuration parameters of the system and the second virtual system are analyzed according to the configuration file to obtain the configuration parameters of the first virtual system and the second virtual system. For this process, refer to the relevant descriptions of steps 241-243. It should be noted that compared with step 242, The configuration parameters analyzed in this step do not include the shared directory of the Host OS and the virtual operating system, but add the IP address of the interactive smart tablet module and the port for the interactive smart tablet module to communicate with the VMM service. In one embodiment, the VMM service is provided with a background monitoring port (that is, the port in the configuration parameters) for communicating with the "channel management, screen sound setting system" in the interactive smart tablet module. It should be noted that compared with step 243, when starting the first virtual system and the second virtual system in this step, there is no need to configure and mount the shared directory.

In one embodiment, after starting the interactive smart panel and displaying the customized start-up screen, it further includes: the display component sends query instructions to the first virtual system and the second virtual system through the VMM service, so as to obtain the first virtual system through the query instruction. The first system icon of the system and the second system icon of the second virtual system; the first system icon and the second system icon are added in the virtual control area by the display screen component.

Exemplarily, the display screen component refers to an interactive smart panel module. The interactive smart panel module sends a query command to the VMM service, and then the VMM service queries the first virtual system and the second virtual system, that is, the VMM service sends a query command to the first virtual system and the second virtual system. The query command can obtain the system information of the first virtual system and the second virtual system. Each virtual operating system corresponds to a system message. The content of the system message can be set according to the actual situation. The type of the currently started virtual operating system can be clarified through the system message . In one embodiment, the system message includes at least a system icon, wherein the system icon refers to an icon representing the corresponding virtual operating system. For example, when the virtual operating system is an Android system, the corresponding system icon is an icon displaying the Android system. The system diagram of the second virtual system is marked as the second system icon, and the system diagram of the first virtual system is marked as the first system icon. Afterwards, the VMM service enables the interactive smart panel module to obtain the first system icon and the second system icon through the VMM service, and then, the first system icon and the second system icon are displayed by the "channel management, screen sound setting system" of the interactive smart panel module . In one embodiment, the "channel management, screen sound setting system" of the interactive smart panel module provides a graphical setting interface, which is recorded as a virtual control area, and the size and display position of the virtual control area can be adjusted according to the actual situation. set up. In one embodiment, the virtual control area can be displayed and hidden in the display screen through a set touch interaction method. It can be understood that the virtual control area is an interface generated by an interactive smart tablet module, rather than an interface output by a virtual operating system. A first system icon and a second system icon are displayed in the control area.

Step 330, after the start-up screen stops displaying, display a first interface of the first virtual system, where the first interface is the system desktop of the first virtual system.

When the first virtual system outputs the startup screen, stop displaying the startup screen, after the startup screen stops displaying, display the startup screen of the first virtual system, and suspend the second virtual system in the background, after the startup screen stops displaying, display the first virtual system The first interface of the system. For this process, reference may be made to related descriptions in step 250 , step 260 and step 280 . Optionally, since switching applications is not currently involved, only the first application icon of the first virtual system may be displayed on the first interface.

In one embodiment, after displaying the startup screen of the first virtual system and suspending the second virtual system in the background, the VMM message management service in the VMM service can also be started, wherein, compared to the VMM message management service in step 270, The VMM message management service in this step retains the virtual machine message thread, the virtual machine screen status message thread, and the USB peripheral message thread, and does not reserve the application message thread, and adds an interactive smart tablet module message thread. The interactive smart tablet module The message thread can monitor the communication port between the VMM service and the interactive smart tablet module in the configuration parameters, so as to realize the following types of message communication between the VMM service and the interactive smart tablet module: query the message communication of all virtual operating systems; query the currently running virtual Message communication of the operating system; message communication of querying the running status of all virtual operating systems; message communication of switching virtual operating systems; message communication of querying the IP address of the Host OS. It can be understood that the interactive smart panel module can send a query command to the VMM service through the message thread of the interactive smart panel module, so as to obtain the information of all virtual operating systems, and display the corresponding system icon in the virtual control area according to the information of the virtual operating system .

It can be understood that the messages communicated by each process in the VMM message management service can also be divided into two types, which are the same as the two types of messages described in step 270, and will not be repeated here. For example, when the message type is a query command for all virtual operating systems, its message parameter is empty; when the message type is a query command for a specified virtual operating system, the relevant content. When the message type is to switch the virtual operating system, the relevant content of the virtual operating system to be switched (in the embodiment, the second virtual system corresponding to the second selection instruction) is written in the message parameter. At this time, reference may be made to FIG. 4 for the operation flowchart of the VMM service.

Step 340, receiving a screen control instruction.

Exemplarily, the screen control instruction is used to call out the virtual control area. The screen control command can be triggered by a preset touch interaction method, for example, the preset touch interaction method is a touch operation of swiping upward from the bottom of the display screen, and when the touch operation is detected, it is determined that the screen control is received instruction. In one embodiment, the screen control instruction is detected by the interactive smart panel module.

Step 350: In response to the screen control instruction, display a virtual control area on the first interface, where a first system icon of the first virtual system and a second system icon of the second virtual system are displayed in the virtual control area.

In one embodiment, in response to the screen control instruction, the virtual control area is invoked on the display screen, that is, the virtual control area is displayed on the first interface. It should be noted that after each virtual operating system is started, the interactive smart panel module can obtain the first system icon and the second system icon through the query command, and the "channel management, screen sound setting system" of the interactive smart panel module can be set in the virtual control area. The first system icon and the second system icon are displayed, so when the virtual control area is called, the first system icon and the second system icon are displayed in the virtual control area.

It can be understood that the virtual control area is provided by the display component of the interactive smart panel. Exemplarily, the virtual control area is provided by the "channel management, screen sound setting system" in the interactive smart panel module.

In addition to displaying various system icons, the virtual control area can also display icons related to display settings, sound settings, HDMI channels, etc., so that when the user selects an icon, corresponding settings can be performed. In one embodiment, FIG. 11 is a schematic diagram of a virtual control area provided by an embodiment of the present application. With reference to FIG. 11 , the virtual operating system includes a Windows system, an Android system, and a UOS system, and the Windows system, Android system, and Windows system are displayed in the virtual control area. The system icons of the system and UOS system also display content such as display settings, sound settings, and HDMI. It can be understood that, for the virtual operating system running in the foreground, the corresponding system icon can be highlighted in the virtual control area, for example, highlighted by means of highlighting. For example, the first virtual system runs in the foreground, and the first virtual system is a Windows system. Therefore, a system icon of the Windows system is highlighted in the virtual control area.

Step 360, receiving a second selection instruction, where the second selection instruction is used to select a target system icon among the second system icons.

Exemplarily, after the virtual control area is displayed on the first interface, the user of the interactive smart tablet can enable the interactive smart tablet to open the second virtual system corresponding to the second system icon by selecting the second system icon in the virtual control area. In one embodiment, the instruction for selecting the second system icon in the virtual control area is recorded as the second selection instruction, and the second system diagram selected by the second selection instruction is marked as the target system icon. Wherein, the user can issue the second selection command by touching (such as clicking, long pressing, etc.) the second system icon.

In one embodiment, receiving the second selection instruction includes step 361-step 362:

Step 361, the display screen component generates a second selection instruction according to the touch operation acting on the second system icon.

Exemplarily, when the user touches the second system icon, the display screen component (interactive smart panel module) can detect the user's touch operation, and when it is determined that the touch operation is a touch for selecting the second system icon In operation, a second selection instruction is generated.

Step 362, the VMM message management service of the VMM service receives the second selection instruction sent by the display screen component.

Exemplarily, after the display screen component generates the second selection instruction, it sends the second selection instruction to the interactive smart panel module message thread of the VMM message management service, and then, the interactive smart panel module message thread determines the message type according to the second selection instruction as The virtual operating system displays the toggle and responds accordingly.

Step 370: In response to the second selection instruction, replace the first interface with a fourth interface, where the fourth interface is the system desktop of the second virtual system corresponding to the icon of the target system.

Exemplarily, when the VMM message management service determines that the display of the virtual operating system is switched, it indicates that the first virtual system is suspended in the background, and resumes the second virtual system corresponding to the target system icon as the virtual operating system running in the foreground. , acquire and display the picture output by the virtual GPU in the second virtual system, and switch the first interface. In one embodiment, the interface displayed after switching is recorded as the fourth interface. It should be noted that when the second virtual system resumes running, the image output by the GPU is the system desktop of the second virtual system, and the fourth interface is the system desktop of the second virtual system. Since switching of application programs is not currently involved, only the second application icon of the second virtual system may be displayed on the system interface of the second virtual system. In practical applications, when the second virtual system is suspended in the background, an application interface of a second application is displayed, then, when the second virtual system is resumed, the application interface can be displayed.

After switching to the second virtual system, the second system icon of the second virtual system in the virtual control area is highlighted.

In one embodiment, in response to the second selection instruction, replacing the first interface with the fourth interface includes Step 371-Step 377:

Step 371: In response to the second selection instruction, the VMM message management service instructs to delete the touch device of the first virtual system.

After the message thread of the interactive smart panel module of the VMM message management service receives the second selection instruction, the virtual machine message thread of the VMM message management service sends a message of deleting the touch device to the first virtual system, and then the first virtual system receives the message Afterwards, the touch device of the first virtual system is deleted, and at this time, the touch operation received by the touch device has nothing to do with the first virtual system.

Step 372, the VMM message management service instructs to delete the USB device of the first virtual system.

Step 373: The VMM message management service instructs the background to suspend the first virtual system.

Step 374: The VMM message management service instructs to resume running the second virtual system corresponding to the icon of the target system.

Exemplarily, after the first virtual system is suspended in the background, the virtual machine message thread of the VMM message management service sends a resume message to the second virtual system corresponding to the target system icon, and after the second virtual system receives the message, It is running in the foreground, and the state of the second virtual system during running is the same as that of the second virtual system when it is suspended. At this time, the second virtual system is running in the foreground, so as to realize the switching of the virtual operating system.

Step 375: The VMM message management service instructs the second virtual system to add a touch device.

Step 376: The VMM service obtains the fourth interface of the second virtual system, and replaces the first interface with the fourth interface.

Exemplarily, the VMM service obtains the virtual GPU output screen (the fourth interface in the embodiment) of the second virtual system, and sends it to the display screen for display. At this time, the virtual machine screen status message thread of the VMM message management service can By monitoring the state of the virtual GPU of the second virtual system, it is determined whether the switching is successful.

Step 377, add a USB device for the second virtual system by the VMM message management service.

After the fourth interface is displayed, the virtual machine message thread of the VMM message management service sends a message for adding a USB device to the second virtual system, and after receiving the message, the second virtual system adds the USB device of the second virtual system, such as adding The touch device deleted by the first virtual system is added to the second virtual system, and at this time, the USB device can be used by the second virtual system.

FIG. 12 is a flow chart of virtual operating system switching provided by an embodiment of the present application. Referring to Figure 12, after receiving the second selection instruction, the VMM message management service first deletes the touch device of the first virtual system (running in the foreground), and then deletes the USB device of the first virtual system, and then suspends the first virtual system and resumes The second virtual system runs, instructs the second virtual system to add a touch device, switches the first interface to the fourth interface, and then adds a USB device to the second virtual system, so as to switch the first virtual system to the second virtual system.

On the basis of the above, FIG. 13 is a flowchart of a VMM service provided by an embodiment of the present application. With reference to FIG. 13 , when switching virtual operating systems, the VMM service first goes through the initialization phase (that is, reads the VMM configuration according to the operating parameters. file), after that, start each virtual operating system (the first virtual system and the second virtual system) according to the configuration parameters parsed by the VMM configuration file, and then run the VMM message management service to listen to the virtual machine message (implemented by the virtual machine message thread ), monitor interactive smart panel messages (implemented by interactive smart panel module message threads), monitor display system messages (implemented by virtual machine screen status message threads) and monitor USB device messages (implemented by USB peripheral message threads), wherein, monitor When interacting with the smart tablet message, the current virtual operating system can be switched to the virtual operating system to which the target system icon belongs according to the selection instruction for selecting the target system icon.

As mentioned above, by receiving the device startup command, start the interactive smart tablet and display the customized boot screen, after the boot screen stops displaying, the first interface of the first virtual system is displayed, and then, according to the received screen control command, the first interface contains The virtual control area of the first system icon and the second system icon receives a second selection instruction for selecting the second system icon, and replaces the first interface with the fourth interface corresponding to the second virtual system according to the second selection instruction. The technical means solves the technical problems of high equipment cost and high hardware design complexity when the interactive smart tablet supports multiple operating systems, and uses virtualization technology to install each operating system as a virtual operating system in the interactive smart tablet, without requiring each The virtual operating system configures the corresponding physical CPU, only the physical CPU of the main operating system needs to be configured, which reduces equipment cost and hardware design complexity. Through the VMM service and the interactive smart tablet module, it is possible to manage and run multiple virtual operating systems, thereby realizing fast switching and starting of the virtual operating systems. When switching the virtual operating system, the processing of the touch device is prior to the processing of the USB device, which can optimize the loading time of the touch device to realize the touch function when switching the virtual operating system, and improve the user experience when switching applications.

Fig. 14 is a schematic structural diagram of a switching control device provided by an embodiment of the present application. Referring to Fig. 14, the switching control device includes a first receiving module 401, a first response module 402, a first display module 403, and a second receiving module 404. The second response module 405.

The first receiving module 401 is configured to receive a device startup instruction; the first response module 402 is configured to respond to the device startup instruction, start the interactive smart tablet and display a custom startup screen; the first display module 403 is configured to stop the startup screen After displaying, the first interface of the first virtual system is displayed, the first interface is the system desktop of the first virtual system, and the first interface displays the first application icon of the first application installed in the first virtual system and the second virtual system The second application icon of the second application installed in the second virtual system is at least one; the second receiving module 404 is configured to receive a first selection instruction, and the first selection instruction is used to select a target application icon in the second application icon The second response module 405 is configured to respond to the first selection instruction and replace the first interface with a second interface, the second interface is an application interface displayed after the second application corresponding to the target application icon is started.

According to an embodiment of the present application, it further includes: a third receiving module configured to receive an application exit instruction after replacing the first interface with a second interface; a third responding module configured to exit the target application in response to the application exit instruction The icon corresponds to the second application, and the second interface is replaced with a third interface, the third interface is the system desktop of the second virtual system to which the second application belongs, and the third interface displays the first application icon of the first virtual system and A second application icon of the second virtual system.

According to an embodiment of the present application, it further includes: a fourth receiving module configured to receive a screen control instruction after the first interface of the first virtual system is displayed after the start-up screen stops displaying; a fourth responding module configured to respond to the screen The control instruction is to display a virtual control area in the first interface, and the virtual control area displays the first system icon of the first virtual system and the second system icon of the second virtual system; the fifth receiving module is configured to receive the second selection instruction , the second selection instruction is configured to select the target system icon in the second system icon; the fifth response module is configured to respond to the second selection instruction and replace the first interface with the fourth interface, the fourth interface corresponds to the target system icon The system desktop of the second virtual system.

According to an embodiment of the present application, the first response module 402 includes: a main system starting unit configured to start the main operating system of the interactive smart tablet in response to the device starting instruction, and the first virtual system and the second virtual system are installed in the main operating system. In the virtual system, the main operating system is an operating system without a desktop environment; the boot display unit is configured to display a customized boot screen during the boot process of the main operating system.

According to an embodiment of the present application, it further includes: a first startup module configured to start the first virtual system and the second virtual system before displaying the first interface of the first virtual system after the start-up screen stops displaying; stop the display module, It is configured to stop displaying the start-up picture when the first virtual system outputs the start-up picture. Correspondingly, the first display module 403 includes: a start-up display unit configured to display the start-up picture of the first virtual system after the start-up picture stops displaying, and suspend the second virtual system in the background; an interface display unit configured to stop the start-up picture After displaying, the first interface of the first virtualization system is displayed, the first interface is the system desktop of the first virtual system, and the first interface displays the first application icon and the second virtualization icon of the first application installed in the first virtual system. There is at least one second application icon of the second application installed in the system, and the second virtual system is at least one.

According to an embodiment of the present application, it also includes: a second startup module configured to display the startup screen of the first virtual system, and start the VMM message management service in the VMM service after the second virtual system is suspended in the background, and the VMM service As a service provided by the host operating system, the VMM message management service drives the management and operation of the first virtual system and the second virtual system.

According to an embodiment of the present application, the first startup module includes: a file reading unit configured to read the configuration file of the VMM service in the main operating system after the startup screen stops displaying and before displaying the first interface of the first virtual system; The parameter analysis unit is configured to analyze the configuration parameters of the first virtual system and the second virtual system according to the configuration file; the first system startup unit is configured to start the first virtual system and the second virtual system according to the configuration parameters.

According to an embodiment of the present application, the first virtual system is provided with a first icon service, and the second virtual system is provided with a second icon service, and the second response module 405 includes: a switching message generating unit configured to use the first icon service The service generates a switching message according to the first selection instruction, the switching message includes the target application icon and the second virtual system to which the target application icon belongs; the switching message sending unit is configured to send the switching message to the VMM message management service by the first icon service; notify The unit is configured to start the second application corresponding to the target application icon by the VMM message management service to notify the second icon service of the second virtual system to which the target application icon belongs according to the switching message; the application opening unit is configured to be opened by the second icon service A second application corresponding to the target application icon; an interface switching unit configured to obtain a second interface of the second application by the VMM service, and replace the first interface with a second interface, the second interface being the second application corresponding to the target application icon The application interface displayed after opening.

According to an embodiment of the present application, the notification unit includes: a first deletion subunit, configured to delete the touch device of the first virtual system according to a switching message, instructed by the VMM message management service; The management service instructs to delete the USB device of the first virtual system; the first suspend subunit is configured to be instructed by the VMM message management service to suspend the first virtual system in the background; the first running subunit is configured to be instructed by the VMM message management service to resume operation The second virtual system to which the target application icon belongs; the first adding subunit is configured to instruct the second virtual system to add a touch device by the VMM message management service; the first opening subunit is configured to notify the second virtual system by the VMM message management service The second icon service starts the second application corresponding to the target application icon. Correspondingly, it also includes: a second adding module configured to, after the first interface is replaced with the second interface, the VMM message management service instructs the second virtual system to add the USB device.

According to an embodiment of the present application, the first startup module includes: a second system startup unit configured to start the first virtual system and the second virtual system; a directory mount unit configured to use the VMM service to The shared directory is mounted to the first virtual system and the second virtual system; the information collection unit is configured to collect the first application information and the second application information respectively by the first icon service and the second icon service, and the first application information includes the first The first application icon and the first path information of the application, the second application information includes the second application icon and the second path information of the second application; the shared update unit is configured to be served by the first icon service and the second icon service respectively The first application information and the second application information are updated to the shared directory. Correspondingly, when the first display module 403 is configured to display the first interface of the first virtual system, it also includes: an information reading unit configured to use the first icon service to read the second application information recorded in the shared directory; the icon display unit , configured to display the second application icon on the first interface by the first icon service according to the second application information.

According to an embodiment of the present application, the virtual control area is provided by the display screen component of the interactive smart panel. Also includes: a query module, configured to start the interactive smart panel and display a customized boot screen, the display component sends a query command to the first virtual system and the second virtual system through the VMM service, so as to obtain the first virtual system through the query command. The first system icon of the system and the second system icon of the second virtual system; an icon adding module configured to add the first system icon and the second system icon in the virtual control area by the display screen component.

According to an embodiment of the present application, the fifth receiving module includes: an instruction generation unit configured to generate a second selection instruction by the display component according to a touch selection operation acting on the second system icon; an instruction sending unit configured to be used by the VMM The VMM message management service of the service receives the second selection instruction sent by the display screen component; the fifth response module includes: a third deletion unit, in response to the second selection instruction, the VMM message management service instructs to delete the touch device of the first virtual system; The fourth deletion unit is configured to delete the USB device of the first virtual system by the VMM message management service; the second suspension unit is configured to suspend the first virtual system in the background by the VMM message management service; the second operation unit is configured The VMM message management service instructs the second virtual system corresponding to the target system icon to be resumed; the third adding unit is configured to be instructed by the VMM message management service to add a touch device to the second virtual system; the second opening unit is configured to be served by the VMM The fourth interface of the second virtual system is obtained, and the first interface is replaced with the fourth interface; the fourth adding unit is configured to add a USB device to the second virtual system by the VMM message management service.

The switching control device provided above can be configured to execute the switching control method provided in any of the above embodiments, and has corresponding functions and beneficial effects.

It is worth noting that, in the above embodiment of the switch control device, the included units and modules are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be realized; in addition, each The specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the protection scope of the present application.

Fig. 15 is a schematic structural diagram of an interactive smart tablet provided by an embodiment of the present application. As shown in Figure 15, the interactive smart panel includes a processor 50, a memory 51, an input device 52, an output device 53, and a display screen 54; A processor 50 is taken as an example. The processor 50, the memory 51, the input device 52, the output device 53, and the display screen 54 in the interactive smart panel can be connected through a bus or in other ways. In FIG. 15, connection through a bus is taken as an example.

The memory 51, as a computer-readable storage medium, can be used to store software programs, computer-executable programs and modules, such as program instructions/modules corresponding to the handover control method in the embodiment of the present application (for example, the first receiver in the handover control device module 401, a first response module 402, a first display module 403, a second receiving module 404, and a second response module 405). The processor 50 executes various functional applications and data processing of the interactive smart panel by running software programs, instructions and modules stored in the memory 51 , that is, realizes the above switching control method. Multiple virtual operating systems can be installed and run through the memory 51 and the processor 50 .

The memory 51 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system and at least one application required by a function; the data storage area may store data created according to the use of the interactive smart tablet, and the like. In addition, the memory 51 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage devices. In some examples, the memory 51 may further include a memory that is remotely located relative to the processor 50, and these remote memories may be connected to the interactive smart panel through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The input device 52 can be used to receive input numbers or character information, and generate key signal input related to user settings and function control of the interactive smart tablet, and can also include an audio collection device. The output device 53 may include audio playback equipment such as speakers. The display screen 54 is used to display data according to the instructions of the processor 50, such as displaying the first interface, or switching the first interface to the second interface and so on.

The above-mentioned interactive smart tablet includes a switching control device, which can be used to execute any switching control method, and has corresponding functions and beneficial effects.

An embodiment of the present application further provides a switching control program. When the program is executed, operations related to the switching control method in the above embodiments can be implemented.

In one embodiment, with reference to the flow chart shown in Figure 1, when the switching control program is executed, it is specifically: receiving a device startup instruction; in response to the device startup instruction, starting the interactive smart panel and displaying a custom startup screen; the startup screen stops After displaying, the first interface of the first virtual system is displayed, the first interface is the system desktop of the first virtual system, and the first interface displays the first application icon of the first application installed in the first virtual system and the second virtual system There is at least one second application icon of the second application installed in the second virtual system; a first selection instruction is received, and the first selection instruction is used to select a target application icon among the second application icons; in response to the first selection instruction, The first interface is replaced with a second interface, and the second interface is an application interface displayed after the second application corresponding to the target application icon is started.

It should be noted that when the switching control program is executed, in addition to performing the above operations, any operation mentioned in the above switching control method embodiments may also be performed, and have corresponding functions and beneficial effects.

In addition, an embodiment of the present application also provides a storage medium containing computer-executable instructions, and the computer-executable instructions are used to perform related operations in the handover control method provided in any embodiment of the present application when executed by a computer processor. , and have corresponding functions and beneficial effects.

Wherein, the storage medium containing the computer-executable instructions can be installed in the corresponding electronic device.

In one embodiment, when the storage medium containing computer-executable instructions executes the switching control method, the electronic device installed therein is an interactive smart tablet. There are many types of operating systems installed on the interactive smart tablet, among which the operating systems include but are not limited to iOS system, Android system, Linux system, Windows system, UOS system and so on. In one embodiment, the interactive smart tablet is installed with a Linux system, and the Linux system is installed in a chip of the interactive smart tablet as a main operating system of the interactive smart tablet, and the chip can be understood as a physical CPU. The interactive smart tablet is also installed with operating systems such as Android system, Windows system, and UOS system, and the above operating systems are installed in the Linux system in the form of a virtual operating system. Generally speaking, a virtual operating system refers to an operating system installed on the basis of a virtualization technology. Among them, virtualization generally means that computing elements run on a virtual basis rather than a real basis. Virtualization technology can expand the capacity of hardware and simplify the reconfiguration process of software. When virtualization technology is applied, the Linux system is used as the Host OS of the interactive smart tablet. It can be understood that in virtualization technology, an operating system can be installed on a physical machine, and then virtualization software can be installed on this operating system, so that several partitions can be virtualized on the physical machine to install different operating systems respectively. , the operating system installed on the physical machine is called Host OS. When the interactive smart tablet is used as a physical machine, Host OS is the main operating system, which is a Linux system. In one embodiment, each virtual operating system is implemented by a corresponding virtual machine, and a virtual machine refers to a complete computer system that is simulated by software and has complete hardware system functions and runs in a completely isolated environment. A virtual machine corresponds to an interactive A partition in the smart tablet to install the corresponding virtual operating system. Each virtual machine includes a virtual GPU and a virtual CPU, and the virtual GPU generates and sends images during the running of the virtual operating system, such as the system desktop of the virtual operating system and the application interface of the running application program installed in the virtual operating system. The virtual CPU implements the operation of the virtual operating system. In one embodiment, the Host OS communicates with each virtual operating system through a virtual machine manager (Virtual Machine Manager, VMM) service in the Host OS, wherein the VMM service is a system service of the Host OS for starting and managing Multiple virtualization systems. Exemplarily, the interactive smart panel further includes at least one display screen, which may be a display screen with a touch function or a display screen without a touch function. In one embodiment, the interactive smart The display screen with the control function is described as an example, that is, the user of the interactive smart tablet can control the interactive smart tablet by touching the display on the display screen. At this time, the interactive smart panel is also equipped with an interactive smart panel module, which includes components related to display, touch control and output such as a displayed screen, touch control and high definition multimedia interface (High Definition Multimedia Interface, HDMI) channel. In one embodiment, the VMM service can also perform data communication with the interactive smart panel module, so that when the display screen receives some touch operations related to the virtual operating system, the interactive smart panel module notifies the VMM service to respond to the touch operation , so as to control the virtual operating system, such as switching the currently running virtual operating system. Exemplarily, the interactive smart tablet can install at least one application program based on each operating system (including the main operating system and the virtual operating system), where the implementation of the function of the application program is not limited. The application program may be a built-in application program of each operating system, or may be an application program downloaded from a third-party device or server. In one embodiment, the virtual operating system is used to install the application program as an example. At this time, each virtual operating system installs at least one application program, and the application icon of the installed application program can be displayed on the system desktop of the corresponding virtual operating system superior. In one embodiment, the Linux system does not have a desktop environment installed, that is, the Linux system is always running in the background, and for the user of the interactive smart tablet, the running interface of the Linux system will not be seen on the display screen. And each virtual operating system has a desktop environment, that is, when the user of the interactive smart tablet uses the virtual operating system, the system desktop of the virtual operating system can be displayed on the display screen.

Those skilled in the art should understand that the embodiments of the present application may be provided as methods, systems, or computer program products.

Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein. The present application is described with reference to flowcharts and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram. These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram. These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory. Memory may include non-permanent storage in computer readable media, in the form of random access memory (RAM) and/or nonvolatile memory such as read only memory (ROM) or flash RAM. The memory is an example of a computer readable medium.

Computer-readable media, including both permanent and non-permanent, removable and non-removable media, can be implemented by any method or technology for storage of information. Information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read only memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Flash memory or other memory technology, Compact Disc Read-Only Memory (CD-ROM), Digital Versatile Disc (DVD) or other optical storage, Magnetic tape cartridge, tape magnetic disk storage or other magnetic storage device or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media excludes transitory computer-readable media, such as modulated data signals and carrier waves.

It should also be noted that the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes Other elements not expressly listed, or elements inherent in the process, method, commodity, or apparatus are also included. Without further limitations, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

Note that the above are only preferred embodiments and technical principles used in this application. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present application. Therefore, although the present application has been described in detail through the above embodiments, the present application is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present application, and the present application The scope is determined by the scope of the appended claims.

Claims

A switching control method, including:

Receive device startup instructions;

In response to the device startup instruction, start the interactive smart tablet and display a customized startup screen;

After the start-up screen stops displaying, the first interface of the first virtual system is displayed, the first interface is the system desktop of the first virtual system, and the first interface is displayed with the first virtual system installed in the first virtual system. The first application icon of the application and the second application icon of the second application installed in the second virtual system, the second virtual system is at least one;

receiving a first selection instruction, the first selection instruction is used to select a target application icon among the second application icons;

In response to the first selection instruction, the first interface is replaced with a second interface, and the second interface is an application interface displayed after the second application corresponding to the target application icon is started.
The switching control method according to claim 1, wherein, after replacing the first interface with the second interface, further comprising:

Receive an application exit command;

In response to the application exit instruction, exit the second application corresponding to the target application icon, and replace the second interface with a third interface, the third interface being the second virtual system to which the second application belongs system desktop, the third interface displays the first application icon of the first virtual system and the second application icon of the second virtual system.
The switching control method according to claim 1, wherein after the display of the startup screen stops and the first interface of the first virtual system is displayed, further comprising:

Receive screen control commands;

In response to the screen control instruction, displaying a virtual control area in the first interface, the virtual control area displays a first system icon of the first virtual system and a second system icon of the second virtual system ;

receiving a second selection instruction, the second selection instruction being used to select a target system icon among the second system icons;

In response to the second selection instruction, the first interface is replaced with a fourth interface, and the fourth interface is the system desktop of the second virtual system corresponding to the target system icon.
The switching control method according to claim 1, wherein, in response to the device startup instruction, starting the interactive smart tablet and displaying a customized startup screen comprises:

In response to the device startup instruction, start the main operating system of the interactive smart panel, the first virtual system and the second virtual system are installed in the main operating system, and the main operating system is a system that does not have a desktop environment. operating system;

During the startup process of the main operating system, a customized startup screen is displayed.
The switching control method according to claim 1, wherein after the start-up screen stops displaying and before displaying the first interface of the first virtual system, the steps include:

start the first virtual system and the second virtual system;

When the first virtual system outputs a startup screen, stop displaying the startup screen;

After the startup screen stops displaying, displaying the first interface of the first virtual system includes:

After the startup screen stops displaying, display the startup screen of the first virtual system, and suspend the second virtual system in the background;

After the start-up image stops displaying, the first interface of the first virtualization system is displayed.
The switching control method according to claim 5, wherein, after displaying the startup screen of the first virtual system and suspending the second virtual system in the background, the steps include:

Starting the VMM message management service in the VMM service, the VMM service is a service provided by the main operating system, and the VMM message management service drives the management and operation of the first virtual system and the second virtual system.
The switching control method according to claim 6, wherein said starting the first virtual system and the second virtual system comprises:

Read the configuration file of the VMM service in the host operating system;

Analyzing configuration parameters of the first virtual system and the second virtual system according to the configuration file;

Starting the first virtual system and the second virtual system according to the configuration parameters.
The switching control method according to claim 6, wherein the first virtual system is provided with a first icon service, and the second virtual system is provided with a second icon service;

In response to the first selection instruction, replacing the first interface with the second interface includes:

generating a switching message by the first icon service according to the first selection instruction, the switching message including the target application icon and the second virtual system to which the target application icon belongs;

sending the switching message to the VMM message management service by the first icon service;

According to the switching message, the VMM message management service notifies the second icon service of the second virtual system to which the target application icon belongs to start the second application corresponding to the target application icon;

Opening a second application corresponding to the target application icon by the second icon service;

The VMM service obtains the second interface of the second application, and replaces the first interface with the second interface.
The switching control method according to claim 8, wherein, according to the switching message, the VMM message management service notifies the second icon service of the second virtual system to which the target application icon belongs to start the target application The second application corresponding to the icon includes:

According to the switching message, the VMM message management service instructs to delete the touch device of the first virtual system;

The VMM message management service instructs to delete the USB device of the first virtual system;

The VMM message management service instructs the background to suspend the first virtual system;

The VMM message management service instructs to resume running the second virtual system to which the target application icon belongs;

instructing the second virtual system to add a touch device by the VMM message management service;

The VMM message management service notifies the second icon service of the second virtual system to start the second application corresponding to the target application icon;

After replacing the first interface with the second interface, it includes:

The VMM message management service instructs the second virtual system to add a USB device.
The switching control method according to claim 6, wherein, when starting the first virtual system and the second virtual system, further comprising:

Mounting the shared directory configured in the main operating system to the first virtual system and the second virtual system by the VMM service;

The first application information and the second application information are respectively collected by the first icon service and the second icon service, the first application information includes the first application icon and the first path information of the first application, and the second application The information includes a second application icon and second path information of the second application;

updating the first application information and the second application information to the shared directory by the first icon service and the second icon service, respectively;

When displaying the first interface of the first virtual system, it also includes:

reading the second application information recorded in the shared directory by the first icon service;

The second application icon is displayed on the first interface by the first icon service according to the second application information.
The switching control method according to claim 10, wherein when the first application and/or the second application are updated, the first application information and/or the second application information in the shared directory are updated synchronously.
The switching control method according to claim 3, wherein the virtual control area is provided by a display screen component of an interactive smart panel;

After starting the interactive smart tablet and displaying the customized boot screen, it includes:

The display screen component sends a query instruction to the first virtual system and the second virtual system through the VMM service, so as to obtain the first system icon of the first virtual system and the second virtual system through the query instruction. The second system icon of the virtual system;

adding the first system icon and the second system icon in the virtual control area by the display screen component.
The switching control method according to claim 12, wherein said receiving the second selection instruction comprises:

generating a second selection instruction by the display screen component according to a touch selection operation acting on a second system icon;

The VMM message management service of the VMM service receives the second selection instruction sent by the display screen component;

In response to the second selection instruction, replacing the first interface with the fourth interface includes:

In response to the second selection instruction, the VMM message management service instructs to delete the touch device of the first virtual system;

The VMM message management service instructs to delete the USB device of the first virtual system;

The VMM message management service instructs the background to suspend the first virtual system;

Instructing by the VMM message management service to resume running the second virtual system corresponding to the target system icon;

instructing the second virtual system to add a touch device by the VMM message management service;

obtaining a fourth interface of the second virtual system by the VMM service, and replacing the first interface with the fourth interface;

A USB device is added to the second virtual system by the VMM message management service.
A switching control device, including:

The first receiving module is configured to receive a device startup instruction;

The first response module is configured to respond to the device startup instruction, start the interactive smart tablet and display a customized startup screen:

The first display module is configured to display the first interface of the first virtual system after the startup screen stops displaying, the first interface is the system desktop of the first virtual system, and the first interface displays the first The first application icon of the first application installed in the virtual system and the second application icon of the second application installed in the second virtual system, the second virtual system is at least one;

The second receiving module is configured to receive a first selection instruction, the first selection instruction is used to select a target application icon among the second application icons;

The second response module is configured to replace the first interface with a second interface in response to the first selection instruction, and the second interface is an application interface displayed after the second application corresponding to the target application icon is started. .
An interactive smart tablet, including:

one or more processors;

memory for storing one or more programs;

When the one or more programs are executed by the one or more processors, the one or more processors are made to implement the switching control method according to any one of claims 1-13.
A computer-readable storage medium, on which a computer program is stored, wherein, when the program is executed by a processor, the switching control method according to any one of claims 1-13 is implemented.