CN116614663A

CN116614663A - Method for realizing false standby and display device

Info

Publication number: CN116614663A
Application number: CN202210122071.3A
Authority: CN
Inventors: 赵春亭
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2022-02-09
Filing date: 2022-02-09
Publication date: 2023-08-18

Abstract

The application discloses a screen throwing method and display equipment, wherein the method is used for enabling the display equipment to start and run an application by executing false standby, and the handle corresponding to the application is not acquired again, so that the display equipment only has the original unreleased handle, and the problems of dead halt of the display equipment, application flash back and the like are not caused. The method comprises the following steps: receiving a display device shutdown instruction, determining whether a power lock management module holds a lock, and acquiring a state of a power saving switch, wherein when a built-in storage device converted by an external storage device exists in the display device, the power lock management module is controlled to hold the lock; and when the power lock module holds the lock and the state of the power-saving switch is on, performing false standby.

Description

Method for realizing false standby and display device

Technical Field

The present application relates to the technical field of display devices, and in particular, to a method for implementing a pseudo standby mode and a display device.

Background

The display device refers to a terminal device capable of outputting a specific display screen, and may be a terminal device such as a smart television, a mobile terminal, a smart advertisement screen, and a projector. Taking intelligent electricity as an example, the intelligent television is based on the Internet application technology, has an open operating system and a chip, has an open application platform, can realize a bidirectional man-machine interaction function, and is a television product integrating multiple functions of video, entertainment, data and the like, and the intelligent television is used for meeting the diversified and personalized requirements of users.

In the process of using the display device, as applications are continuously installed and run in the display device, the built-in storage space in the display device becomes smaller and smaller, and in order to enable the display device to use more applications, the user often converts the external storage device into the built-in storage device so as to enlarge the built-in storage space of the display device. The user can install the application into the converted built-in storage device, but find that the application is running on the display device, then the display device executes true standby, i.e. executes STR standby (the display device is in a suspended mode), and when the display device is restarted and the application is opened, the problems of dead halt of the display device or flash back of the application can occur, so that the use experience of the user is seriously affected.

Therefore, how to avoid the occurrence of the dead halt of the display device or the flashing back of the application when the application is opened again becomes a problem to be solved by those skilled in the art.

Disclosure of Invention

Some embodiments of the present application provide a method for implementing a pseudo standby and a display device, where the method is used to enable a display device to start up and run an application without re-acquiring a handle corresponding to the application, so that only an original unreleased handle exists in the display device, and the problems of dead display device or application flash back are not caused.

In a first aspect, there is provided a display device including:

a display for displaying a user interface;

a user interface for receiving an input signal;

a controller coupled to the display and the user interface, respectively, for performing:

receiving a display device shutdown instruction, determining whether a power lock management module holds a lock, and acquiring a state of a power saving switch, wherein when a built-in storage device converted by an external storage device exists in the display device, the power lock management module is controlled to hold the lock; and when the power lock module holds the lock and the state of the power-saving switch is on, performing false standby.

In some embodiments, the controller is configured to determine whether there is a built-in storage device in the display device converted by the external storage device according to the following steps:

acquiring equipment information of all storage equipment in the display equipment, wherein the equipment information comprises equipment identifiers and equipment types;

when the device identifier indicates that an external storage device connected with the display device exists and the device type is a private type, determining that a built-in storage device converted by the external storage device exists in the display device.

In some embodiments, the controller is configured to perform determining whether the device identification indicates that there is an external storage device connected to the display device according to the following steps:

the device identification comprises a device identifier and a universal unique identification code;

judging whether the equipment identifier is empty or not, and if the equipment identifier is not empty, judging whether the universal unique identification code is empty or not; and if the universal unique identification code is not null, determining that the device identification indicates that an external storage device connected with the display device exists.

In some embodiments, the controller is configured to control the power lock management module to hold the lock according to the following steps: and controlling the power lock management module to hold the lock by using the power management service.

In some embodiments, the controller is configured to perform the converting the external storage device into the internal storage device according to the following steps:

receiving an instruction of selecting a preset control, and determining a path corresponding to an external storage device connected with a display device;

judging whether the path exists or not, if so, writing the path into external storage equipment; after unloading is successful, formatting the external storage device and clearing the corresponding cache;

If not, the display is controlled to display a prompt message.

In a second aspect, a method for implementing a false standby is provided, including:

In some embodiments, the step of determining whether there is a built-in storage device in the display device that is converted by the external storage device comprises:

In some embodiments, the step of determining whether the device identification indicates the presence of an external storage device connected to the display device comprises:

In some embodiments, the method further comprises: and controlling the power lock management module to hold the lock by using the power management service.

In some embodiments, the step of converting the external storage device to a built-in storage device includes:

if not, the display is controlled to display a prompt message.

In the above embodiment, by performing the pseudo standby, the method does not acquire the handle corresponding to the application again when the display device is started and runs the application, so that only the original unreleased handle exists in the display device, and the problems of dead halt of the display device or application flash back are not caused. The method comprises the following steps: receiving a display device shutdown instruction, determining whether a power lock management module holds a lock, and acquiring a state of a power saving switch, wherein when a built-in storage device converted by an external storage device exists in the display device, the power lock management module is controlled to hold the lock; and when the power lock module holds the lock and the state of the power-saving switch is on, performing false standby.

Drawings

FIG. 1 illustrates an operational scenario between a display device and a control apparatus according to some embodiments;

fig. 2 shows a hardware configuration block diagram of the control device 100 according to some embodiments;

fig. 3 illustrates a hardware configuration block diagram of a display device 200 according to some embodiments;

FIG. 4 illustrates a software configuration diagram in a display device 200 according to some embodiments;

a flowchart of a method of implementing a false standby is shown schematically in fig. 5, in accordance with some embodiments;

a user interface schematic of a display device according to some embodiments is shown schematically in fig. 6;

a user interface schematic of yet another display device according to some embodiments is illustrated in fig. 7;

a user interface schematic of yet another display device according to some embodiments is illustrated in fig. 8;

a user interface schematic diagram of yet another display device according to some embodiments is shown schematically in fig. 9;

a user interface schematic diagram of yet another display device according to some embodiments is illustrated in fig. 10;

a user interface schematic of yet another display device according to some embodiments is illustrated in fig. 11;

a user interface schematic diagram of yet another display device according to some embodiments is shown schematically in fig. 12;

A user interface schematic of yet another display device according to some embodiments is illustrated in fig. 13;

a user interface schematic of yet another display device according to some embodiments is illustrated in fig. 14.

Detailed Description

For the purposes of making the objects and embodiments of the present application more apparent, an exemplary embodiment of the present application will be described in detail below with reference to the accompanying drawings in which exemplary embodiments of the present application are illustrated, it being apparent that the exemplary embodiments described are only some, but not all, of the embodiments of the present application.

It should be noted that the brief description of the terminology in the present application is for the purpose of facilitating understanding of the embodiments described below only and is not intended to limit the embodiments of the present application. Unless otherwise indicated, these terms should be construed in their ordinary and customary meaning.

The terms "first," second, "" third and the like in the description and in the claims and in the above drawings are used for distinguishing between similar or similar objects or entities and not necessarily for describing a particular sequential or chronological order, unless otherwise indicated. It is to be understood that the terms so used are interchangeable under appropriate circumstances.

The terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements is not necessarily limited to all elements explicitly listed, but may include other elements not expressly listed or inherent to such product or apparatus.

The term "module" refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware or/and software code that is capable of performing the function associated with that element.

Fig. 1 is a schematic diagram of an operation scenario between a display device and a control apparatus according to an embodiment. As shown in fig. 1, a user may operate the display device 200 through the smart device 300 or the control apparatus 100.

In some embodiments, the control apparatus 100 may be a remote controller, and the communication between the remote controller and the display device includes infrared protocol communication or bluetooth protocol communication, and other short-range communication modes, and the display device 200 is controlled by a wireless or wired mode. The user may control the display device 200 by inputting user instructions through keys on a remote control, voice input, control panel input, etc.

In some embodiments, a smart device 300 (e.g., mobile terminal, tablet, computer, notebook, etc.) may also be used to control the display device 200. For example, the display device 200 is controlled using an application running on a smart device.

In some embodiments, the display device 200 may also perform control in a manner other than the control apparatus 100 and the smart device 300, for example, the voice command control of the user may be directly received through a module configured inside the display device 200 device for acquiring voice commands, or the voice command control of the user may be received through a voice control device configured outside the display device 200 device.

In some embodiments, the display device 200 is also in data communication with a server 400. The display device 200 may be permitted to make communication connections via a Local Area Network (LAN), a Wireless Local Area Network (WLAN), and other networks. The server 400 may provide various contents and interactions to the display device 200. The server 400 may be a cluster, or may be multiple clusters, and may include one or more types of servers.

Fig. 2 exemplarily shows a block diagram of a configuration of the control apparatus 100 in accordance with an exemplary embodiment. As shown in fig. 2, the control device 100 includes a controller 110, a communication interface 130, a user input/output interface 140, a memory, and a power supply. The control apparatus 100 may receive an input operation instruction of a user and convert the operation instruction into an instruction recognizable and responsive to the display device 200, and function as an interaction between the user and the display device 200.

Fig. 3 shows a hardware configuration block diagram of the display device 200 in accordance with an exemplary embodiment.

In some embodiments, display apparatus 200 includes at least one of a modem 210, a communicator 220, a detector 230, an external device interface 240, a controller 250, a display 260, an audio output interface 270, memory, a power supply, a user interface.

In some embodiments the controller includes a processor, a video processor, an audio processor, a graphics processor, RAM, ROM, a first interface for input/output to an nth interface.

In some embodiments, the display 260 includes a display screen component for presenting a picture, and a driving component for driving an image display, for receiving image signals from the controller output, for displaying video content, image content, and a menu manipulation interface, and for manipulating a UI interface by a user.

In some embodiments, the display 260 may be a liquid crystal display, an OLED display, a projection device, and a projection screen.

In some embodiments, communicator 220 is a component for communicating with external devices or servers according to various communication protocol types. For example: the communicator may include at least one of a Wifi module, a bluetooth module, a wired ethernet module, or other network communication protocol chip or a near field communication protocol chip, and an infrared receiver. The display device 200 may establish transmission and reception of control signals and data signals with the external control device 100 or the server 400 through the communicator 220.

In some embodiments, the user interface may be configured to receive control signals from the control device 100 (e.g., an infrared remote control, etc.).

In some embodiments, the detector 230 is used to collect signals of the external environment or interaction with the outside. For example, detector 230 includes a light receiver, a sensor for capturing the intensity of ambient light; alternatively, the detector 230 includes an image collector such as a camera, which may be used to collect external environmental scenes, user attributes, or user interaction gestures, or alternatively, the detector 230 includes a sound collector such as a microphone, or the like, which is used to receive external sounds.

In some embodiments, the external device interface 240 may include, but is not limited to, the following: high Definition Multimedia Interface (HDMI), analog or data high definition component input interface (component), composite video input interface (CVBS), USB input interface (USB), RGB port, or the like. The input/output interface may be a composite input/output interface formed by a plurality of interfaces.

In some embodiments, the modem 210 receives broadcast television signals via wired or wireless reception and demodulates audio-video signals, such as EPG data signals, from a plurality of wireless or wired broadcast television signals.

In some embodiments, the controller 250 and the modem 210 may be located in separate devices, i.e., the modem 210 may also be located in an external device to the main device in which the controller 250 is located, such as an external set-top box or the like.

In some embodiments, the controller 250 controls the operation of the display device and responds to user operations through various software control programs stored on the memory. The controller 250 controls the overall operation of the display apparatus 200. For example: in response to receiving a user command to select a UI object to be displayed on the display 260, the controller 250 may perform an operation related to the object selected by the user command.

In some embodiments, the object may be any one of selectable objects, such as a hyperlink, an icon, or other operable control. The operations related to the selected object are: displaying an operation of connecting to a hyperlink page, a document, an image, or the like, or executing an operation of a program corresponding to the icon.

In some embodiments the controller includes at least one of a central processing unit (Central Processing Unit, CPU), video processor, audio processor, graphics processor (Graphics Processing Unit, GPU), RAM Random Access Memory, RAM), ROM (Read-Only Memory, ROM), first to nth interfaces for input/output, a communication Bus (Bus), and the like.

A CPU processor. For executing operating system and application program instructions stored in the memory, and executing various application programs, data and contents according to various interactive instructions received from the outside, so as to finally display and play various audio and video contents. The CPU processor may include a plurality of processors. Such as one main processor and one or more sub-processors.

In some embodiments, a graphics processor is used to generate various graphical objects, such as: icons, operation menus, user input instruction display graphics, and the like. The graphic processor comprises an arithmetic unit, which is used for receiving various interactive instructions input by a user to operate and displaying various objects according to display attributes; the device also comprises a renderer for rendering various objects obtained based on the arithmetic unit, wherein the rendered objects are used for being displayed on a display.

In some embodiments, the video processor is configured to receive an external video signal, perform video processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, image composition, etc., according to a standard codec protocol of an input signal, and may obtain a signal that is displayed or played on the directly displayable device 200.

In some embodiments, the video processor includes a demultiplexing module, a video decoding module, an image synthesis module, a frame rate conversion module, a display formatting module, and the like. The demultiplexing module is used for demultiplexing the input audio and video data stream. And the video decoding module is used for processing the demultiplexed video signal, including decoding, scaling and the like. And an image synthesis module, such as an image synthesizer, for performing superposition mixing processing on the graphic generator and the video image after the scaling processing according to the GUI signal input by the user or generated by the graphic generator, so as to generate an image signal for display. And the frame rate conversion module is used for converting the frame rate of the input video. And the display formatting module is used for converting the received frame rate into a video output signal and changing the video output signal to be in accordance with a display format, such as outputting RGB data signals.

In some embodiments, the audio processor is configured to receive an external audio signal, decompress and decode the audio signal according to a standard codec protocol of an input signal, and perform noise reduction, digital-to-analog conversion, and amplification processing to obtain a sound signal that can be played in a speaker.

In some embodiments, a user may input a user command through a Graphical User Interface (GUI) displayed on the display 260, and the user input interface receives the user input command through the Graphical User Interface (GUI). Alternatively, the user may input the user command by inputting a specific sound or gesture, and the user input interface recognizes the sound or gesture through the sensor to receive the user input command.

In some embodiments, a "user interface" is a media interface for interaction and exchange of information between an application or operating system and a user that enables conversion between an internal form of information and a form acceptable to the user. A commonly used presentation form of the user interface is a graphical user interface (Graphic User Interface, GUI), which refers to a user interface related to computer operations that is displayed in a graphical manner. It may be an interface element such as an icon, a window, a control, etc. displayed in a display screen of the electronic device, where the control may include a visual interface element such as an icon, a button, a menu, a tab, a text box, a dialog box, a status bar, a navigation bar, a Widget, etc.

In some embodiments, a system of display devices may include a Kernel (Kernel), a command parser (shell), a file system, and an application program. The kernel, shell, and file system together form the basic operating system architecture that allows users to manage files, run programs, and use the system. After power-up, the kernel is started, the kernel space is activated, hardware is abstracted, hardware parameters are initialized, virtual memory, a scheduler, signal and inter-process communication (IPC) are operated and maintained. After the kernel is started, shell and user application programs are loaded again. The application program is compiled into machine code after being started to form a process.

Referring to FIG. 4, in some embodiments, the system is divided into four layers, from top to bottom, an application layer (simply "application layer"), an application framework layer (Application Framework) layer (simply "framework layer"), a An Zhuoyun row (Android run) and a system library layer (simply "system runtime layer"), and a kernel layer, respectively.

In some embodiments, at least one application program is running in the application program layer, and these application programs may be a Window (Window) program of an operating system, a system setting program, a clock program, or the like; or may be an application developed by a third party developer. In particular implementations, the application packages in the application layer are not limited to the above examples.

The framework layer provides an application programming interface (application programming interface, API) and programming framework for the application. The application framework layer includes a number of predefined functions. The application framework layer corresponds to a processing center that decides to let the applications in the application layer act. Through the API interface, the application program can access the resources in the system and acquire the services of the system in the execution.

As shown in fig. 4, the application framework layer in the embodiment of the present application includes a manager (manager), a Content Provider (Content Provider), and the like, where the manager includes at least one of the following modules: an Activity Manager (Activity Manager) is used to interact with all activities that are running in the system; a Location Manager (Location Manager) is used to provide system services or applications with access to system Location services; a Package Manager (Package Manager) for retrieving various information about an application Package currently installed on the device; a notification manager (Notification Manager) for controlling the display and clearing of notification messages; a Window Manager (Window Manager) is used to manage bracketing icons, windows, toolbars, wallpaper, and desktop components on the user interface.

In some embodiments, the activity manager is used to manage the lifecycle of the individual applications as well as the usual navigation rollback functions, such as controlling the exit, opening, fallback, etc. of the applications. The window manager is used for managing all window programs, such as obtaining the size of the display screen, judging whether a status bar exists or not, locking the screen, intercepting the screen, controlling the change of the display window (for example, reducing the display window to display, dithering display, distorting display, etc.), etc.

In some embodiments, the system runtime layer provides support for the upper layer, the framework layer, and when the framework layer is in use, the android operating system runs the C/C++ libraries contained in the system runtime layer to implement the functions to be implemented by the framework layer.

In some embodiments, the kernel layer is a layer between hardware and software. As shown in fig. 4, the kernel layer contains at least one of the following drivers: audio drive, display drive, bluetooth drive, camera drive, WIFI drive, USB drive, HDMI drive, sensor drive (e.g., fingerprint sensor, temperature sensor, pressure sensor, etc.), and power supply drive, etc.

The research shows that the reason for the technical problem is that the file handle held by the application is not released after the application is in a true standby state, and when the application is started again, the handle corresponding to the application is acquired again, so that the unreleased handle contradicts the acquired handle, and finally the problems of dead display equipment or application flash back are caused.

In order to solve the above technical problems, an embodiment of the present application provides a method for implementing a pseudo standby, where the method performs the pseudo standby, so that when a display device is started and an application is running, a handle corresponding to the application is not re-acquired, so that only an original unreleased handle exists in the display device, and the problems of a dead state of the display device or a flash back of the application cannot be caused, as shown in fig. 5, a flowchart of a method for implementing the pseudo standby is exemplarily shown in fig. 5, and the method includes S100-S200:

s100, receiving a shutdown instruction of the display device, determining whether the power lock management module holds a lock (wake_lock), and acquiring a state of the power saving switch, wherein when the built-in storage device converted by the external storage device exists in the display device, the power lock management module is controlled to hold the lock.

In the embodiment of the application, the generation of the shutdown instruction of the display device can be realized in different modes. In some embodiments, the user may press a power key (power key) provided on the control apparatus to generate a display device shutdown instruction. In other embodiments, a shutdown control is set on a user interface of the display device, and a user can move a focus to the shutdown control through the control device and press a confirmation key on the control device to generate a shutdown instruction of the display device. As shown in fig. 6, a user interface diagram of a display device according to some embodiments is exemplarily shown in fig. 6, where in fig. 6, a related control is displayed on the user interface, and in some cases, in order to enrich operations executable by a user on the display device, a restart control may also be controlled to be displayed when the shutdown control is displayed. It should be noted that, in the embodiment of the present application, the operation of generating the shutdown instruction of the display device is not limited, as long as the operation of generating the shutdown instruction of the display device can be implemented.

In the embodiment of the application, the focus is moved to the control, the frame of the control can be thickened, in addition, other forms can be adopted to indicate that the control is selected, when the focus is moved to the control, the control can change the form, can be changed into a round shape from the square, and the like, and can be enlarged according to the preset proportion when the control is selected, for example, the display area of the video control on the user interface is the same, and when a certain control is selected, the display area of the control is increased by 1.2 times compared with the display area of the original control. Because the application does not limit the form of the control, the form of the control can be accepted, which is convenient for the user to distinguish the form selected by the video control.

In the embodiment of the application, the steps of determining whether the power lock management module holds the lock and acquiring the state of the power saving switch are executed, and the steps of determining whether the power lock management module holds the lock or not can be executed first, when the power lock is held, the step of acquiring the state of the power saving switch can be executed first, and when the state of the power saving switch is opened, the step of acquiring the state of the power saving switch can be executed first, and whether the power lock management module holds the lock or not can be determined. Therefore, after the shutdown instruction of the display device is received, whether the power lock management module holds the lock or not is determined, the state of the power-saving switch is obtained, and the execution sequence of the power-saving switch and the power-saving switch is obtained.

In some embodiments, after the display device is turned on, a resident listening service (Agent) is created in the display device, and is used for receiving various broadcasts sent out for running the display device, and performing responsive operations according to the broadcasts, where, for example, the operations corresponding to the broadcasts may be turning off sound, controlling light effects, and so on. When the display device receives a shutdown instruction, the system sends a screen-off broadcast, and after receiving the screen-off broadcast, a monitoring service (Agent) determines whether a power lock management mode holds a lock or not and acquires the state of a power-saving switch. In some embodiments, after the display device receives the shutdown instruction, the user presses a power key on the control device, drives the parse key value, throws up to a frame layer (frame layer), invokes a photowindow manager service, executes a powerpress function, sends str shutdown broadcast, invokes a PMS service (power manager service), executes a gotoseep function, and sends a screen shutdown broadcast.

In the embodiment of the application, when the built-in storage device converted by the external storage device exists in the display device, the power lock management module is controlled to hold the lock. In some embodiments, when there is a built-in storage device converted by an external storage device, the power lock management module is called by using the listening service to acquire the lock, and specifically, the lock is held by using a wailockmananager. In some embodiments, the power lock management module holds the lock primarily through a power management (powermanager) service, creates a power lock (waikelock) object using the newwaikelock method by invoking the power management service, and uses the object to acquire the lock using the acquire method.

In the related art, when an application is installed in a built-in storage device obtained by converting an external storage device and the display device is in a real standby state, the problem that the display device is halted or the application is flashed back occurs when the application is restarted and operated is solved. When the display equipment receives the shutdown instruction and executes the pseudo standby, and the application is restarted, the handle corresponding to the application cannot be acquired again, the problem of contradiction with the unreleased handle cannot be caused, and the use experience of a user is improved.

How to judge whether the built-in storage device converted by the external storage device exists in the display device and how to hold the relevant content of the lock by the power management module are described in detail below.

Firstly, how to judge whether the built-in storage device converted by the external storage device exists in the display device is described.

In some embodiments, the step of determining whether the built-in storage device converted by the external storage device exists in the display device includes: acquiring device information of a storage device (volume) in a display device, wherein the device information comprises a device identifier and a device type; and when the device identifier indicates that an external storage device connected with the display device exists and the device TYPE is a PRIVATE TYPE (TYPE_PRIVATE), determining that a built-in storage device converted by the external storage device exists in the display device. In some embodiments, the obtaining the device information of the storage device in the display device may be accomplished through a storage device management system service.

The display device can realize the storage function by using a built-in storage device, and can also realize the storage function by using an external storage device. The built-in storage device may be a built-in storage device originally arranged in the display device, or may be a built-in storage device obtained by converting an external storage device. The number of storage devices in the display device may be one or more.

In the embodiment of the application, the device information of the storage device in the display device can be acquired in different acquisition modes. In some embodiments, the device information of all the storage devices in the display device may be acquired at one time, then the device information is analyzed one by one, and when a built-in storage device converted from an external storage device appears, the analysis of the remaining device information is stopped. If the currently analyzed device information fails to determine that the built-in storage device converted by the external storage device exists, continuing to analyze the next device information until all the device information is analyzed, and if the currently analyzed device information fails to determine that the built-in storage device converted by the external storage device exists, determining that the built-in storage device converted by the external storage device does not exist in the display device.

Illustratively, the storage devices in the display device include device a, device B, and device C. The device information of the three storage devices is acquired at one time, and the device information of the storage devices is analyzed one by one according to a certain sequence. For example, the device a is first analyzed, and through the analysis, the device a is not a built-in storage device converted by an external storage device. And further analyzing the device information of the next storage device B, and determining that the built-in storage device converted by the external storage device exists in the display device if the device B is the built-in storage device converted by the external storage device through analysis. The analysis of the device information of the next storage device C is not continued.

In other embodiments, the device information corresponding to one storage device may be acquired each time, and the device information may be analyzed, and if it is determined that the storage device corresponding to the device information is a built-in storage device obtained by converting an external storage device, the device information corresponding to the next storage device in the display device is not continuously acquired. If the storage device corresponding to the device information is not the built-in storage device obtained by conversion of the external storage device, the device information corresponding to the next storage device in the display device is continuously obtained, and the device information analysis is continuously carried out until the device information of all the storage devices in the display device is obtained. If the built-in storage device converted by the external storage device still cannot be determined to exist, the built-in storage device converted by the external storage device is determined to be not exist in the display device.

Illustratively, the storage devices in the display device include device a, device B, and device C. Firstly, acquiring equipment information of equipment A, analyzing the equipment information, and determining that the equipment A is not a built-in storage device obtained by conversion of external storage equipment. And then continuously acquiring the equipment information of the equipment B, analyzing the equipment information, and determining that the equipment B is not the built-in storage equipment obtained by conversion of the external storage equipment. And continuously acquiring the equipment information of the equipment C, analyzing the equipment information to determine that the equipment C is not the built-in storage equipment converted by the external storage equipment, and determining that the built-in storage equipment converted by the external storage equipment does not exist in the display equipment.

In some embodiments, the device information includes a device identification and a device type. The device identification is a unique identification of the storage device and may be in the form of numbers, letters and/or symbols. The device types include private types and common types. The device type of the storage device is a private type, which can be understood as a built-in storage device. The device type of the storage device is a common type, which can be understood as that the storage device is an external storage device.

The step of determining whether the device identification in the device information indicates the presence of a storage device comprises: judging whether the equipment identifier is empty or not; when the device identification is not empty, it indicates that there is an external storage device connected to the display device. When the device identifier is empty, it indicates that there is no external storage device connected to the display device, and in the embodiment of the present application, the storage device corresponding to the device information is probably a built-in storage device of the display device itself when the device identifier is empty.

Illustratively, if the device identifier of the device a is null, it indicates that the device a is a built-in storage device of the display device itself, so that the device type of the device a is not considered either. The device identification of the device B and the device identification of the device C are not empty, which means that the device B and the device C are external storage devices, and only the external storage devices are judged in the follow-up step, and whether the external storage devices are converted into built-in storage devices or not is judged.

And judging whether the corresponding equipment type is a private type or not by indicating the external storage equipment connected with the display equipment, and if the equipment type of a certain storage equipment is the private type, determining that the built-in storage equipment converted by the external storage equipment exists in the display equipment. If all the device types of the storage devices indicating existence are not private types, namely all the device types are public types, determining that only external storage devices exist in the display device and no built-in storage devices exist.

In the embodiment of the application, after the external storage equipment connected with the display equipment is determined, whether the equipment types of all the external storage equipment connected with the display equipment are private types is judged. When the device type of at least one storage device is a private type, it is determined that a built-in storage device converted by an external storage device exists in the display device, in some embodiments, there may be a plurality of external storage devices connected with the display device in the display device, the device types of the external storage devices may be judged one by one, and when the device type of the external storage device is the private type, it is determined that the external storage device has been converted into the built-in storage device, so that the judgment on the remaining external storage devices connected with the display device may not be continued. It is understood that after the display device has a built-in storage device converted from an external storage device, the device type of the storage device is not continuously determined. Because the technical problems in the related art may occur as long as there is a built-in storage device converted from an external storage device.

In some embodiments, to more accurately determine whether the device identifier indicates that an external storage device connected to the display device exists, the step of determining whether the device identifier indicates that an external storage device connected to the display device exists includes:

The device identification includes a device identifier (diskid) and a universally unique identification code (uuid). In the embodiment of the application, each external storage device is corresponding to a unique device identifier, each external storage device is also corresponding to a unique universal unique identification code, and the unique external storage device can be determined by the device identifier and the universal unique identification code in two different aspects. In order to more accurately determine whether the device identifier indicates that an external storage device connected with the display device exists, in the embodiment of the application, whether the device identifier is empty is judged, and if the device identifier is not empty, whether the universal unique identification code is empty is judged; and if the universal unique identification code is not null, determining that the equipment identification indicates that an external storage equipment connected with the display equipment exists. In this way, the device identifier and the universal unique identification code can be used for more accurately determining whether the device identifier indicates that an external storage device connected with the display device exists.

In some embodiments, the step of converting the external storage device into the built-in storage device includes:

and receiving an instruction for displaying the preset control, and controlling the display interface to display the preset control. In the embodiment of the application, the preset control is a control corresponding to the conversion from the external storage device to the built-in storage device. In some embodiments, the user connects the external storage device to the display device, at which time an instruction to display the preset control is generated, and the exemplary mass storage device is inserted into the display device through a USB interface provided on the display device, at which time an instruction to display the preset control is generated. When the display device receives an instruction to display a preset control, the display is controlled to display a user interface as shown in fig. 7, a user interface schematic diagram of yet another display device according to some embodiments is exemplarily shown in fig. 7, and in fig. 7, the preset control is displayed, and the preset control is displayed as "converted into an internal storage device".

And receiving an instruction of selecting a preset control, and determining a path corresponding to the external storage device connected with the display device. In some embodiments, the user may move the focus to the preset control by the control device, and press the confirm key on the control device, at which time an instruction to select the preset control is generated.

In some embodiments, in order to more accurately understand the intention of the user, after the user moves the focus to the preset control through the control device and presses the confirmation key on the control device, the user does not immediately generate an instruction for selecting the preset control, but controls the display to display an inquiry message, and the inquiry message is used for inquiring whether the user determines to execute the operation of converting the external storage device into the internal storage device, so that the intention of the user can be more accurately understood, and the problem caused by misoperation is avoided.

Illustratively, as shown in FIG. 8, a user interface diagram of yet another display device according to some embodiments is illustratively shown in FIG. 8, which changes when a user inserts an external storage device on the display device. In some embodiments, the user interface jumps directly, and the user interface after the jump displays an inquiry message, for example, from the user interface shown in fig. 8 to the user interface shown in fig. 9, a user interface schematic diagram of still another display device according to some embodiments is exemplarily shown in fig. 9, and the inquiry message is displayed in fig. 9. In other embodiments, the user interface has an interrogation message displayed on a floating layer, as illustrated by way of example in fig. 10, and a schematic user interface diagram of yet another display device according to some embodiments is illustrated in fig. 10, where the interrogation message is displayed on the user interface in a floating layer manner in fig. 10.

Specifically, the query message may be "whether to determine to perform an operation of converting the external storage device into the internal storage device", and the confirmation control and the cancellation control are displayed while the query message is displayed. When the user confirms that the operation is executed, the user can move the focus to the confirmation control by using the control device and press the confirmation key on the control device, at the moment, an instruction for selecting the preset control is generated, and the located path corresponding to the external storage device connected with the display device is determined. In some embodiments, upon receiving an instruction for selecting the preset control, the display is further controlled to continue displaying a user interface before the display device is inserted into the external storage device, and illustratively, a user interface as shown in fig. 8 is displayed, where the user interface is a user interface before the display device is inserted into the external storage device.

When the user does not wish the display device to perform this operation, the user may move the focus to the cancel control using the control device and press the confirm key on the control device, at which time an instruction to select the preset control is not generated. In some embodiments, when the user selects the cancel control and when the user interface displaying the preset control also displays other controls, the display may be controlled to display the user interface provided with the preset control, such as the user interface shown in fig. 9 or fig. 10. This provides the opportunity for a further selection if the user has selected the cancel control by mistake. When the second user still selects the cancel control, the query message is no longer displayed. In some embodiments, when the user interface displaying the preset control does not display other controls, the display may be controlled to continue to display the user interface before the display device is inserted into the external storage device, and, for example, if there is no step of displaying the query message, the user interface directly displays the user interface before the display device is inserted into the external storage device, as shown in fig. 8.

In the embodiment of the application, when the external storage device is inserted into the display device, the path corresponding to the external storage device is automatically determined, so that the storage position corresponding to the external storage device is conveniently searched.

Judging whether the path exists or not, and unloading external storage equipment if the path exists; if not, the display is controlled to display a prompt message. In some embodiments, an onStartCommand method of an exemplar format class in a framewake is called to receive a path, and an updatepreporgressstate method is executed to determine whether the path exists, and if so, the external storage device is unloaded.

In the embodiment of the application, whether the path exists or not is judged, if so, the current connection of the external storage device and the display device is indicated, and the external storage device can be unloaded at the moment. If the path is not available, the external storage device corresponding to the path is not connected with the display device. In some embodiments, the display may be controlled to display a reminder message. Illustratively, as shown in fig. 11, a user interface schematic diagram of yet another display device according to some embodiments is illustratively shown in fig. 11, where the hint message may be a currently unformatted device that facilitates a user to learn about the status of the current display device.

It should be noted that, in the embodiment of the present application, the unloading of the external storage device refers to that the external storage device is only physically connected to the display device, and at this time, the external storage device has no interaction with the data in the display device.

And after the unloading is successful, formatting the external storage device and clearing the corresponding cache. In some embodiments, a successful uninstall may trigger a StorageEventListener event, executing an updateProgressState method to format the storage device; at this point, a format operation is performed and the cache is flushed.

It should be noted that, after the external storage device is formatted, files and the like stored in the external storage device are deleted, and the corresponding cache refers to operation data generated between the external storage device and the display device when the external storage device is inserted into the display device.

In some embodiments, after formatting the external storage device, if the formatting is successful, controlling the display to display a formatting success prompt, as exemplarily shown in fig. 12, a user interface schematic diagram of yet another display device according to some embodiments is exemplarily shown in fig. 12; a formatting success cue is shown in fig. 12.

The above details how to determine whether there is a built-in storage device converted by an external storage device in the display device. The following describes the relevant content regarding the power management module holding the lock.

In the embodiment of the present application, the lock holding of the power lock management module (wake manager) is mainly implemented through a power management (powermanager) service, and specifically, the power management service creates a power lock object by calling the power management module, and obtains the lock by using the object.

In the embodiment of the present application, the lock obtained by using the object may also be referred to as a wake lock (wake lock), and in some embodiments, the wake lock is a core mechanism for power consumption management of the android system, including the following four types: partial_wake_lock, screen_dim_wake_lock, screen_bright_wake_lock, full_wake_lock. When holding a WAKE LOCK of the type PARTIAL_WAKE_LOCK, the display may be turned off while the display is standby, but the other modules are always in operation, i.e. in a false standby. In the embodiment of the present application, whether to perform a false standby or not is specifically determined when the display device is turned off, that is, when the display device is in standby, and the setting condition of the power saving switch needs to be considered, which is described below.

In the embodiment of the present application, the dummy standby corresponds to a true standby, which is STR (suspend to ram), and is suspended to a memory, also called a memory standby mode. In the STR standby state of the display device, the controller in the display device controls only the power supply circuit to maintain the power supply to the RAM and the MCU, while other hardware, such as a display, a bluetooth module, a MIC module, a SOC module, etc., is in a power-down state (off state). While in the embodiment of the application the display is turned off during a false standby, the other modules are always in operation.

S200, when the power lock module holds a lock and the state of the power saving switch is on, performing false standby.

In the embodiment of the application, the state control of the power saving switch is displayed on the user interface of the display device, and the user controls the state control through the control device so that the state of the power saving switch is on or off. When the user selects the state of the power saving switch to be on through the state control of the power saving switch, the user hopes that the display device can save electricity when running. When the user selects the state of the power saving switch to be closed through the state control of the power saving switch, the user does not want the display device to save electricity when in operation.

Exemplary, as shown in fig. 13, a user interface schematic diagram of yet another display device according to some embodiments is illustrated in fig. 13, with status controls of the power saving switch shown in fig. 13. The user can adjust the state control of the power saving switch through the control device to enable the state of the power saving switch to be on or off. When the state of the power saving switch in fig. 13 is an off state, the user may move the focus to the state control of the power saving switch by the control device, press the confirm key on the control device, or press the right key, and switch the state of the power saving switch to an on state. As shown in fig. 14, a user interface schematic diagram of yet another display device according to some embodiments is schematically shown in fig. 14, where the state of the power saving switch is an on state in fig. 14. When the power saving switch is in the on state, the confirmation key on the control device is pressed, or the left key is pressed, the power saving switch is switched to the off state, and referring to the power saving switch of fig. 13 again, the power saving switch is in the off state.

In some embodiments, when the state of the power saving switch is in an on state and the power lock module holds the lock, the Power Management Server (PMS) will not release the lock permanently, thereby achieving the goal of a false standby.

When the built-in storage device obtained by conversion of the external storage device exists in the display device, the power lock module holds the lock, and after the display device executes the true standby in the related art, the handle of the file held by the application in the built-in storage device which is converted by the external storage device is not released.

According to the embodiment of the application, on one hand, the external storage equipment is converted into the built-in storage equipment, so that the original built-in storage space of the display equipment is saved, and on the other hand, the problem that the card machine or flash back possibly occurs when the application is installed in the built-in storage equipment converted by the external storage equipment, is solved, so that a user can conveniently and smoothly start and use the application, the operation instantaneity is improved, and great convenience is brought to the user for using the display equipment.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

The foregoing description, for purposes of explanation, has been presented in conjunction with specific embodiments. However, the illustrative discussions above are not intended to be exhaustive or to limit the embodiments to the precise forms disclosed above. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles and the practical application, to thereby enable others skilled in the art to best utilize the embodiments and various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A display device, characterized by comprising:

a display for displaying a user interface;

A user interface for receiving an input signal;

2. The display device according to claim 1, wherein the controller is configured to perform determining whether there is a built-in storage device in the display device converted by the external storage device according to:

3. The display device of claim 2, wherein the controller is configured to perform determining whether the device identification indicates the presence of an external storage device connected to the display device according to:

4. The display device of claim 1, wherein the controller is configured to control the power lock management module to hold the lock according to the steps of: and controlling the power lock management module to hold the lock by using the power management service.

5. The display device of claim 1, wherein the controller is configured to perform the converting the external storage device to the internal storage device according to the steps of:

if not, the display is controlled to display a prompt message.

6. A method for implementing a false standby, comprising:

7. The method of claim 6, wherein determining whether a built-in storage device converted from an external storage device exists in the display device comprises:

8. The display device of claim 7, wherein determining whether the device identification indicates the presence of an external storage device connected to the display device comprises:

9. The method of claim 6, wherein the method further comprises: and controlling the power lock management module to hold the lock by using the power management service.

10. The method of claim 6, wherein the step of converting the external storage device to a built-in storage device comprises:

if not, the display is controlled to display a prompt message.