CN114077381A - Method for protecting hard disk, display device and display system - Google Patents

Abstract

The application discloses a method for protecting a hard disk, a display device and a display system, which are used for protecting the external hard disk on the display device before power failure, reducing damage to the hard disk and prolonging the service life of the hard disk. The method comprises the following steps: under the condition that the power management circuit is controlled to enable the display equipment to be in a starting state and the hard disk works normally, the writing of data into the hard disk is stopped in response to a standby instruction input by a user; unloading the hard disk; sending a sleep instruction to the hard disk to enable the hard disk to sleep; and controlling the power failure of the universal serial bus interface.

Description

Method for protecting hard disk, display device and display system

The present application claims priority of chinese patent office filed on 21/08/2020 and chinese patent application No. 202010852422.7, priority of chinese patent office filed on 21/08/2020 and chinese patent application No. 202010852494.1, and priority of chinese patent office filed on 21/08/2020 and chinese patent application No. 202010851587.2, which are all incorporated by reference in their entireties.

Technical Field

The present application relates to the field of display technologies, and in particular, to a method for protecting a hard disk, a display device, and a display system.

Background

When the external mechanical hard disk of the display device works, the magnetic head rotates at high speed and is used for reading and writing data. When the hard disk works, if the power is suddenly cut off, the rotating magnetic disk loses power, the magnetic head rotating at high speed suddenly stops rotating, and obvious mechanical abnormal sound or certain damage to the mechanical hard disk can possibly occur.

The above situations may occur in situations of dc standby, STR (Suspend To RAM, also called memory standby mode) standby, and ac shutdown. When the direct current standby mode and the STR standby mode are carried out, due to the requirement of energy efficiency, when the direct current standby mode or the STR standby mode of the display equipment is completed, the USB interface needs to be subjected to power failure processing, and the USB interface of the display equipment does not supply power to the outside any more. After the USB interface of the display equipment is not powered, the external mechanical hard disk stops working because the USB interface is powered off. When the alternating current is turned off, a user directly unplugs the power line of the display equipment or cuts off the power of the display equipment through the switch of the display equipment. The display equipment loses the external power supply, and the USB interface does not supply power any more. The hard disk stops working due to sudden power failure, and abnormal sound may be generated and damage may be caused to the hard disk.

Disclosure of Invention

The embodiment of the application provides a method for protecting a hard disk, a display device and a display system, which are used for protecting the external hard disk on the display device before power failure, reducing damage to the hard disk and prolonging the service life of the hard disk.

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

a display;

a universal serial bus interface;

a power management circuit;

a controller for performing:

under the condition that the power management circuit is controlled to enable the display equipment to be in a starting state and the hard disk works normally, the writing of data into the hard disk is stopped in response to a standby instruction input by a user; unloading the hard disk; sending a sleep instruction to the hard disk to enable the hard disk to sleep;

and controlling the power failure of the universal serial bus interface.

In some embodiments, the standby instruction comprises a direct current standby instruction or a suspend to memory standby instruction.

In a second aspect, there is provided a display device comprising:

a display;

a controller;

a hard disk;

the interface conversion board is internally provided with a capacitor, and the capacitor is used for supplying power after the power failure of a universal serial bus interface of the display equipment;

the interface conversion board is connected with the controller through the universal serial bus interface, and the interface conversion board is connected with the hard disk;

the interface conversion board is used for executing the following steps:

and when detecting that the universal serial bus interface is powered off, sending an instruction for stopping the work of the hard disk so as to stop the work of the hard disk.

In some embodiments, the interface converter board is configured to perform in particular:

when detecting that the universal serial bus interface is powered off, the universal input/output interface sends a command of stopping the work of the hard disk to the drive so that the drive controls the hard disk to stop working.

In a third aspect, a display system is provided, comprising:

a display device;

a hard disk;

the interface conversion board is internally provided with a capacitor, and the capacitor is used for supplying power after the power failure of a universal serial bus interface of the display equipment;

the hard disk is connected with the display equipment through the interface conversion plate;

the interface conversion board is used for executing the following steps:

and when detecting that the universal serial bus interface is powered off, sending an instruction for stopping the work of the hard disk so as to stop the work of the hard disk.

In some embodiments, the interface converter board is configured to perform in particular:

when detecting that the universal serial bus interface is powered off, the universal input/output interface sends a command of stopping the work of the hard disk to the drive so that the drive controls the hard disk to stop working.

In a fourth aspect, a method for protecting a hard disk is provided, including:

under the condition that the power management circuit is controlled to enable the display equipment to be in a starting state and the hard disk works normally, the writing of data into the hard disk is stopped in response to a standby instruction input by a user; unloading the hard disk; sending a sleep instruction to the hard disk to enable the hard disk to sleep;

and controlling the power failure of the universal serial bus interface.

In some embodiments, the standby instruction comprises a direct current standby instruction or a suspend to memory standby instruction.

In a fifth aspect, a method for protecting a hard disk is provided, including:

when detecting that the universal serial bus interface of the display equipment is powered off, the interface conversion board sends a command of stopping the work of the hard disk so as to stop the work of the hard disk;

the interface adapter plate is internally provided with a capacitor, and the capacitor is used for supplying power after the universal serial bus interface of the display device is powered off.

In some embodiments, the method specifically comprises:

when detecting that the universal serial bus interface of the display device is powered off, the universal input/output interface of the interface conversion board sends a command of stopping the work of the hard disk to the drive of the interface conversion board, so that the drive of the interface conversion board controls the hard disk to stop working;

the interface adapter plate is internally provided with a capacitor, and the capacitor is used for supplying power after the universal serial bus interface of the display device is powered off.

In the above embodiment, after the user inputs the standby instruction, the hard disk is unloaded first, and the sleep instruction is sent to make the hard disk sleep, so that the magnetic head of the hard disk stops rotating normally, and then the power down of the usb interface is performed, thereby avoiding damage to the hard disk during standby. After display device cuts off the power supply suddenly, the interface converter board can detect the power down of USB interface, and the built-in electric capacity of interface converter board can supply power for the short time, and during its power supply, the instruction that the hard disk stopped working can be assigned to the interface converter board to make the hard disk magnetic head normally stop rotatory, thereby avoid causing the damage to the hard disk when the interchange shuts down, prolong its life.

Drawings

FIG. 1 is a schematic diagram illustrating an operational scenario between a display device and a control device according to some embodiments;

a block diagram of a hardware configuration of a display device 200 according to some embodiments is illustrated in fig. 2;

FIG. 3 is a schematic diagram illustrating connection of a display device to a hard disk according to some embodiments;

a block diagram of the hardware configuration of the control device 100 according to some embodiments is illustrated in fig. 4;

fig. 5 illustrates a software configuration diagram in the display device 200 according to some embodiments;

FIG. 6 is a flow chart illustrating a method of protecting a hard disk;

another method flow diagram for protecting a hard disk is illustrated in fig. 7.

Detailed Description

To make the objects, embodiments and advantages of the present application clearer, the following description of exemplary embodiments of the present application will clearly and completely describe the exemplary embodiments of the present application with reference to the accompanying drawings in the exemplary embodiments of the present application, and it is to be understood that the described exemplary embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

All other embodiments, which can be derived by a person skilled in the art from the exemplary embodiments described herein without inventive step, are intended to be within the scope of the claims appended hereto. In addition, while the disclosure herein has been presented in terms of one or more exemplary examples, it should be appreciated that aspects of the disclosure may be implemented solely as a complete embodiment.

It should be noted that the brief descriptions of the terms in the present application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of the present application. These terms should be understood in their ordinary and customary meaning unless otherwise indicated.

The terms "first", "second", "third", and the like in the description and claims of this application and in the above-described drawings are used for distinguishing between similar or analogous objects or entities and are not necessarily meant to define a particular order or sequence Unless otherwise indicated. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.

Furthermore, the terms "comprises" and "comprising," as well as any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or device that comprises a list of elements is not necessarily limited to those elements explicitly listed, but may include other elements not expressly listed or inherent to such product or device.

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

The term "remote control" as used in this application refers to a component of an electronic device, such as the display device disclosed in this application, that is typically wirelessly controllable over a short range of distances. Typically using infrared and/or Radio Frequency (RF) signals and/or bluetooth to connect with the electronic device, and may also include WiFi, wireless USB, bluetooth, motion sensor, etc. For example: the hand-held touch remote controller replaces most of the physical built-in hard keys in the common remote control device with the user interface in the touch screen.

The term "gesture" as used in this application refers to a user's behavior through a change in hand shape or an action such as hand motion to convey a desired idea, action, purpose, or result.

Fig. 1 is a schematic diagram illustrating 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 apparatus 200 through the mobile terminal 100A and the control device 100B.

In some embodiments, the control apparatus 100B may be a remote controller, and the communication between the remote controller and the display device includes an infrared protocol communication or a bluetooth protocol communication, and other short-distance communication methods, etc., and the display device 200 is controlled by wireless or other wired methods. The user may input a user command through a key on a remote controller, voice input, control panel input, etc. to control the display apparatus 200. Such as: the user can input a corresponding control command through a volume up/down key, a channel control key, up/down/left/right moving keys, a voice input key, a menu key, a power on/off key, etc. on the remote controller, to implement the function of controlling the display device 200. The wireless mode may be direct connection or non-direct connection, and may be routed or non-routed.

In some embodiments, mobile terminals, tablets, computers, laptops, and other smart devices may also be used to control the display device 200. For example, the display device 200 is controlled using an application program running on the smart device. The application, through configuration, may provide the user with various controls in an intuitive User Interface (UI) on a screen associated with the smart device.

In some embodiments, the mobile terminal 100A may install a software application with the display device 200 to implement connection communication through a network communication protocol for the purpose of one-to-one control operation and data communication. Such as: the mobile terminal 100A and the display device 200 can establish a control instruction protocol, synchronize a remote control keyboard to the mobile terminal 100A, and control the display device 200 by controlling a user interface on the mobile terminal 100A. The audio/video content displayed on the mobile terminal 100A may also be transmitted to the display device 200, so as to implement the synchronous display function.

As also shown in fig. 1, the display apparatus 200 also performs data communication with the server 400 through various communication means. The display device 200 may be allowed to be communicatively connected through 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 apparatus 200. Illustratively, the display device 200 receives software program updates, or accesses a remotely stored digital media library, by sending and receiving information, as well as Electronic Program Guide (EPG) interactions. The server 400 may be a cluster or a plurality of clusters, and may include one or more types of servers. Other web service contents such as video on demand and advertisement services are provided through the server 400.

The display device 200 may be a liquid crystal display, an OLED display, a projection display device. The particular display device type, size, resolution, etc. are not limiting, and those skilled in the art will appreciate that the display device 200 may be modified in performance and configuration as desired.

The display apparatus 200 may additionally provide an intelligent network tv function of a computer support function including, but not limited to, a network tv, an intelligent tv, an Internet Protocol Tv (IPTV), and the like, in addition to the broadcast receiving tv function.

A hardware configuration block diagram of a display device 200 according to an exemplary embodiment is exemplarily shown in fig. 2.

In some embodiments, at least one of the controller 250, the tuner demodulator 210, the communicator 220, the detector 230, the input/output interface 255, the display 275, the audio output interface 285, the memory 260, the power supply 290, the user interface 265, and the external device interface 240 is included in the display apparatus 200.

In some embodiments, a display 275 receives image signals originating from the first processor output and displays video content and images and components of the menu manipulation interface.

In some embodiments, the display 275, includes a display screen assembly for presenting a picture, and a driving assembly that drives the display of an image.

In some embodiments, the video content is displayed from broadcast television content, or alternatively, from various broadcast signals that may be received via wired or wireless communication protocols. Alternatively, various image contents received from the network communication protocol and sent from the network server side can be displayed.

In some embodiments, the display 275 is used to present a user-manipulated UI interface generated in the display apparatus 200 and used to control the display apparatus 200.

In some embodiments, a driver assembly for driving the display is also included, depending on the type of display 275.

In some embodiments, display 275 is a projection display and may also include a projection device and a projection screen.

In some embodiments, communicator 220 is a component for communicating with external devices or external servers according to various communication protocol types. For example: the communicator may include at least one of a vvifii chip, a bluetooth communication protocol chip, a wired ethernet communication protocol chip, or other network communication protocol chip or a near field communication protocol chip, and an infrared receiver.

In some embodiments, the display apparatus 200 may establish control signal and data signal transmission and reception with the external control apparatus 100B or the content providing apparatus through the communicator 220.

In some embodiments, the user interface 265 may be configured to receive infrared control signals from a control device 100B (e.g., an infrared remote control, etc.).

In some embodiments, the detector 230 is a signal used by the display device 200 to collect an external environment or interact with the outside.

In some embodiments, the detector 230 includes a light receiver, a sensor for collecting the intensity of ambient light, and parameters changes can be adaptively displayed by collecting the ambient light, and the like.

In some embodiments, the detector 230 may further include an image collector, such as a camera, etc., which may be configured to collect external environment scenes, collect attributes of the user or gestures interacted with the user, adaptively change display parameters, and recognize user gestures, so as to implement a function of interaction with the user.

In some embodiments, the detector 230 may also include a temperature sensor or the like, such as by sensing ambient temperature.

In some embodiments, the display apparatus 200 may adaptively adjust a display color temperature of an image. For example, the display apparatus 200 may be adjusted to display a cool tone when the temperature is in a high environment, or the display apparatus 200 may be adjusted to display a warm tone when the temperature is in a low environment.

In some embodiments, the detector 230 may also be a sound collector or the like, such as a microphone, which may be used to receive the user's voice. Illustratively, a voice signal including a control instruction of the user to control the display device 200, or to collect an ambient sound for recognizing an ambient scene type, so that the display device 200 can adaptively adapt to an ambient noise.

In some embodiments, as shown in fig. 2, the input/output interface 255 is configured to allow data transfer between the controller 250 and external other devices or other controllers 250. Such as receiving video signal data and audio signal data of an external device, or command instruction data, etc.

In some embodiments, the external device interface 240 may include, but is not limited to, the following: the interface can be any one or more of a high-definition multimedia interface (HDMI), an analog or data high-definition component input interface, a composite video input interface, a USB input interface, an RGB port and the like. The plurality of interfaces may form a composite input/output interface.

In some embodiments, the hard disk may be directly connected to the controller through a USB input interface.

Among them, Hard Disk Drives (HDDs) are nonvolatile memories based on rotating disks used in computers. The hard disk components mainly include magnetic disk, rotary shaft, control motor, magnetic head controller and interface. The magnetic head reaches a preset position on the magnetic disk running at high speed to read and write data. Data information is written to the disk by a magnetic head of only one hair diameter from the magnetic surface in a manner such that the polarity of the electromagnetic current changes, and data information can be read in the opposite manner.

In some embodiments, the hard disk may be a NAS (Network Attached Storage) hard disk.

In some embodiments, the NAS serves as a data storage and data provider, and does not generate data by itself, the data all originate from outside (web pages, mobile phone applications, computer applications, and the like) through a network, the NAS side sends all data to be stored in the NAS to the data receiver through one data receiving service, and the data receiver performs unified storage and management.

In some embodiments, the NAS applied to the display device may generate data (such as television photographing, screen recording, hundredth cloud downloading, and the like) by itself in addition to receiving data from the outside as in the case of a general NAS, and the generated data is obtained by directly writing data to a hard disk in each corresponding service, and is not received by a single service interface as in the case of a general NAS.

In some embodiments, as shown in fig. 3, the hard disk is connected to an interface conversion board, and the interface conversion board is connected to the controller through a USB input interface. The hard disk can be externally connected to the display equipment, namely the hard disk can be separated from the display equipment through the plug interface conversion plate; the hard disk can be built in the display device, namely the hard disk can not be separated from the display device through the plug interface conversion board. The interface conversion board may be a USB (universal Serial bus) to SATA (Serial Advanced Technology Attachment) board. The USB-to-SATA board is used for converting the USB interface into the SATA interface. The controller is connected with the USB input interface, the USB-to-SATA board is connected with the USB input interface, and the hard disk can be connected with the controller by connecting the SATA interface of the USB-to-SATA board.

In some embodiments, the interface conversion board has a large capacitor built therein, and the capacitor is formed by sandwiching an insulating dielectric between two metal electrodes. When a voltage is applied between the two metal electrodes, charges are stored on the electrodes, and the capacitor is an energy storage element. The capacitor can be used for temporary short-term power supply when a power-off condition occurs.

In some embodiments, as shown in fig. 2, the tuning demodulator 210 is configured to receive a broadcast television signal through a wired or wireless receiving manner, perform modulation and demodulation processing such as amplification, mixing, resonance, and the like, and demodulate an audio and video signal from a plurality of wireless or wired broadcast television signals, where the audio and video signal may include a television audio and video signal carried in a television channel frequency selected by a user and an EPG data signal.

In some embodiments, the frequency points demodulated by the tuner demodulator 210 are controlled by the controller 250, and the controller 250 can send out control signals according to user selection, so that the modem responds to the television signal frequency selected by the user and modulates and demodulates the television signal carried by the frequency.

In some embodiments, the broadcast television signal may be classified into a terrestrial broadcast signal, a cable broadcast signal, a satellite broadcast signal, an internet broadcast signal, or the like according to the broadcasting system of the television signal. Or may be classified into a digital modulation signal, an analog modulation signal, and the like according to a modulation type. Or the signals are classified into digital signals, analog signals and the like according to the types of the signals.

In some embodiments, the controller 250 and the modem 210 may be located in different separate devices, that is, the modem 210 may also be located in an external device of the main device where the controller 250 is located, such as an external set-top box. Therefore, the set top box outputs the television audio and video signals modulated and demodulated by the received broadcast television signals to the main body equipment, and the main body equipment receives the audio and video signals through the first input/output interface.

In some embodiments, the controller 250 controls the operation of the display device and responds to user operations through various software control programs stored in memory. The controller 250 may control the overall operation of the display apparatus 200. For example: in response to receiving a user command for selecting a UI object to be displayed on the display 275, 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 or an icon. Operations related to the selected object, such as: displaying an operation connected to a hyperlink page, document, image, or the like, or performing an operation of a program corresponding to the icon. The user command for selecting the UI object may be a command input through various input means (e.g., a mouse, a keyboard, a touch pad, etc.) connected to the display apparatus 200 or a voice command corresponding to a voice spoken by the user.

As shown in fig. 2, the controller 250 includes at least one of a Random Access Memory 251 (RAM), a Read-Only Memory 252 (ROM), a video processor 270, an audio processor 280, other processors 253 (e.g., a Graphics Processing Unit (GPU), a Central Processing Unit 254 (CPU), a Communication Interface (Communication Interface), and a Communication Bus 256(Bus), which connects the respective components.

In some embodiments, RAM251 is used to store temporary data for the operating system or other programs that are running.

In some embodiments, ROM 252 is used to store instructions for various system boots.

In some embodiments, the ROM 252 is used to store a Basic Input Output System (BIOS). The system is used for completing power-on self-test of the system, initialization of each functional module in the system, a driver of basic input/output of the system and booting an operating system.

In some embodiments, when the power of the display apparatus 200 is started upon receiving the power-on signal, the CPU executes the system start-up command in the ROM 252, and copies the temporary data of the operating system stored in the memory into the RAM251 so as to start or run the operating system. After the start of the operating system is completed, the CPU copies the temporary data of the various application programs in the memory to the RAM251, and then, the various application programs are started or run.

In some embodiments, CPU processor 254 is used to execute operating system and application program instructions stored in 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.

In some example embodiments, the CPU processor 254 may comprise a plurality of processors. The plurality of processors may include a main processor and one or more sub-processors. A main processor for performing some operations of the display apparatus 200 in a pre-power-up mode and/or operations of displaying a screen in a normal mode. One or more sub-processors for one operation in a standby mode or the like.

In some embodiments, the graphics processor 253 is used to generate various graphics objects, such as: icons, operation menus, user input instruction display graphics, and the like. The display device comprises an arithmetic unit which carries out operation by receiving various interactive instructions input by a user and displays various objects according to display attributes. And the system 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 270 is configured to receive an external video signal, and perform video processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, image synthesis, and the like according to a standard codec protocol of the input signal, so as to obtain a signal that can be displayed or played on the direct display device 200.

In some embodiments, video processor 270 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 if the input MPEG-2 is input, the demultiplexing module demultiplexes the input audio and video data stream into a video signal and an audio signal.

And the video decoding module is used for processing the video signal after demultiplexing, including decoding, scaling and the like.

And the image synthesis module is used for carrying out superposition mixing processing on the GUI signal input by the user or generated by the user and the video image after the zooming processing by the graphic generator so as to generate an image signal for display.

The frame rate conversion module is configured to convert an input video frame rate, such as a 60Hz frame rate into a 120Hz frame rate or a 240Hz frame rate, and the normal format is implemented in, for example, an interpolation frame mode.

The display format module is used for converting the received video output signal after the frame rate conversion, and changing the signal to conform to the signal of the display format, such as outputting an RGB data signal.

In some embodiments, the graphics processor 253 and the video processor may be integrated or separately configured, and when the graphics processor and the video processor are integrated, the graphics processor and the video processor may perform processing of graphics signals output to the display, and when the graphics processor and the video processor are separately configured, the graphics processor and the video processor may perform different functions, respectively, for example, a GPU + frc (frame Rate conversion) architecture.

In some embodiments, the audio processor 280 is configured to receive an external audio signal, decompress and decode the received audio signal according to a standard codec protocol of the input signal, and perform noise reduction, digital-to-analog conversion, and amplification processes to obtain an audio signal that can be played in a speaker.

In some embodiments, video processor 270 may comprise one or more chips. The audio processor may also comprise one or more chips.

In some embodiments, the video processor 270 and the audio processor 280 may be separate chips or may be integrated together with the controller in one or more chips.

In some embodiments, the audio output, under the control of controller 250, receives sound signals output by audio processor 280, such as: the speaker 286, and an external sound output terminal of a generating device that can output to an external device, in addition to the speaker carried by the display device 200 itself, such as: external sound interface or earphone interface, etc., and may also include a near field communication module in the communication interface, for example: and the Bluetooth module is used for outputting sound of the Bluetooth loudspeaker.

The power supply 290 supplies power to the display device 200 from the power input from the external power source under the control of the controller 250. The power supply 290 may include a built-in power supply circuit installed inside the display apparatus 200, or may be a power supply interface installed outside the display apparatus 200 to provide an external power supply in the display apparatus 200.

A user interface 265 for receiving an input signal of a user and then transmitting the received user input signal to the controller 250. The user input signal may be a remote controller signal received through an infrared receiver, and various user control signals may be received through the network communication module.

In some embodiments, the user inputs a user command through the control device 100B or the mobile terminal 100A, the user input interface responds to the user input through the controller 250 according to the user input, and the display apparatus 200 responds to the user input through the controller 250.

In some embodiments, a user may enter user commands on a Graphical User Interface (GUI) displayed on the display 275, and the user input interface receives the user input commands 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 receives the user input command by recognizing the sound or gesture through the sensor.

In some embodiments, a "user interface" is a media interface for interaction and information exchange between an application or operating system and a user that enables conversion between an internal form of information and a form that is acceptable to the user. A commonly used presentation form of the User Interface is a Graphical User Interface (GUI), which refers to a User Interface related to computer operations and displayed in a graphical manner. It may be an interface element such as an icon, a window, a control, etc. displayed in the 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.

The memory 260 includes a memory storing various software modules for driving the display device 200. Such as: various software modules stored in the first memory, including: at least one of a basic module, a detection module, a communication module, a display control module, a browser module, and various service modules.

The base module is a bottom layer software module for signal communication between various hardware in the display device 200 and for sending processing and control signals to the upper layer module. The detection module is used for collecting various information from various sensors or user input interfaces, and the management module is used for performing digital-to-analog conversion and analysis management.

For example, the voice recognition module comprises a voice analysis module and a voice instruction database module. The display control module is used for controlling the display to display the image content, and can be used for playing the multimedia image content, UI interface and other information. And the communication module is used for carrying out control and data communication with external equipment. And the browser module is used for executing a module for data communication between browsing servers. And the service module is used for providing various services and modules including various application programs. Meanwhile, the memory 260 may store a visual effect map for receiving external data and user data, images of various items in various user interfaces, and a focus object, etc.

Fig. 3 exemplarily shows a block diagram of a configuration of the control apparatus 100B according to an exemplary embodiment. As shown in fig. 3, the control device 100B includes a controller 110, a communication interface 130, a user input/output interface, a memory, and a power supply source.

The control device 100B is configured to control the display device 200 and may receive an input operation instruction of a user and convert the operation instruction into an instruction recognizable and responsive by the display device 200, serving as an interaction intermediary between the user and the display device 200. Such as: the user operates the channel up/down key on the control device 100B, and the display device 200 responds to the channel up/down operation.

In some embodiments, the control device 100B may be a smart device. Such as: the control apparatus 100B may install various applications that control the display apparatus 200 according to user demands.

In some embodiments, as shown in FIG. 1, a mobile terminal 100A or other intelligent electronic device may function similar to control device 100B after installation of an application that manipulates display device 200. Such as: the user may implement the function of controlling the physical keys of the device 100B by installing an application, various function keys or virtual buttons of a graphical user interface available on the mobile terminal 100A or other intelligent electronic device.

The controller 110 includes a processor 112 and RAM 113 and ROM 114, a communication interface 130, and a communication bus. The controller is used to control the operation of the control device 100B, as well as the communication cooperation between internal components and external and internal data processing functions.

The communication interface 130 enables communication of control signals and data signals with the display apparatus 200 under the control of the controller 110. Such as: the received user input signal is transmitted to the display apparatus 200. The communication interface 130 may include at least one of a WiFi chip 131, a bluetooth module 132, an NFC module 133, and other near field communication modules.

A user input/output interface 140, wherein the input interface includes at least one of a microphone 141, a touch pad 142, a sensor 143, keys 144, and other input interfaces. Such as: the user can realize a user instruction input function through actions such as voice, touch, gesture, pressing, and the like, and the input interface converts the received analog signal into a digital signal and converts the digital signal into a corresponding instruction signal, and sends the instruction signal to the display device 200.

The output interface includes an interface that transmits the received user instruction to the display apparatus 200. In some embodiments, the interface may be an infrared interface or a radio frequency interface. Such as: when the infrared signal interface is used, the user input instruction needs to be converted into an infrared control signal according to an infrared control protocol, and the infrared control signal is sent to the display device 200 through the infrared sending module. The following steps are repeated: when the rf signal interface is used, a user input command needs to be converted into a digital signal, and then the digital signal is modulated according to the rf control signal modulation protocol and then transmitted to the display device 200 through the rf transmitting terminal.

In some embodiments, the control device 100B includes at least one of a communication interface 130 and an input-output interface 140. The control device 100B configures a communication interface 130 such as: the WiFi, bluetooth, NFC, etc. modules may transmit the user input command to the display device 200 through the WiFi protocol, or the bluetooth protocol, or the NFC protocol code.

A memory 190 for storing various operation programs, data and applications for driving and controlling the control apparatus 200 under the control of the controller. The memory 190 may store various control signal commands input by a user.

And a power supply 180 for providing operational power support to the components of the control device 100B under the control of the controller. A battery and associated control circuitry.

In some embodiments, the system may include a Kernel (Kernel), a command parser (shell), a file system, and an application program. The kernel, shell, and file system together make up the basic operating system structure that allows users to manage files, run programs, and use the system. After power-on, the kernel is started, kernel space is activated, hardware is abstracted, hardware parameters are initialized, and virtual memory, a scheduler, signals and interprocess communication (IPC) are operated and maintained. And after the kernel is started, loading the Shell and the user application program. The application program is compiled into machine code after being started, and a process is formed.

Referring to fig. 4, in some embodiments, the system is divided into four layers, which are, from top to bottom, an Application (Applications) layer (referred to as an "Application layer"), an Application Framework (Application Framework) layer (referred to as a "Framework layer"), an Android runtime (Android runtime) layer and a system library layer (referred to as a "system runtime library layer"), and a kernel layer.

In some embodiments, at least one application program runs in the application program layer, and the application programs can be Window (Window) programs carried by an operating system, system setting programs, clock programs, camera applications and the like; or may be an application developed by a third party developer such as a hi program, a karaoke program, a magic mirror program, or the like. In specific implementation, the application packages in the application layer are not limited to the above examples, and may actually include other application packages, which is not limited in this embodiment of the present application.

The framework layer provides an APPlication Programming Interface (API) and a programming framework for the aPPlication program of the aPPlication layer. The application framework layer includes a number of predefined functions. The application framework layer acts as a processing center that decides to let the applications in the application layer act. The application program can access the resource in the system and obtain the service of the system in execution through the API interface

As shown in fig. 4, in the embodiment of the present application, the application framework layer includes a manager (Managers), 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 for interacting with all activities running in the system; the Location Manager (Location Manager) is used for providing the system service or application with the access of the system Location service; a Package Manager (Package Manager) for retrieving various information related to an application Package currently installed on the device; a Notification Manager (Notification Manager) for controlling display and clearing of Notification messages; a Window Manager (Window Manager) is used to manage the icons, windows, toolbars, wallpapers, and desktop components on a user interface.

In some embodiments, the activity manager is to: managing the life cycle of each application program and the general navigation backspacing function, such as controlling the exit of the application program (including switching the user interface currently displayed in the display window to the system desktop), opening, backing (including switching the user interface currently displayed in the display window to the previous user interface of the user interface currently displayed), and the like.

In some embodiments, the window manager is configured to manage all window processes, such as obtaining a display size, determining whether a status bar is available, locking a screen, intercepting a screen, controlling a display change (e.g., zooming out, dithering, distorting, etc.) and the like.

In some embodiments, the system runtime layer provides support for the upper layer, i.e., the framework layer, and when the framework layer is used, the android operating system runs the C/C + + library included 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 core layer includes at least one of the following drivers: audio drive, display drive, bluetooth drive, camera drive, WIFI drive, USB drive, HDMI drive, sensor drive (such as fingerprint sensor, temperature sensor, touch sensor, pressure sensor, etc.), and so on.

In some embodiments, the kernel layer further comprises a power driver module for power management.

In some embodiments, software programs and/or modules corresponding to the software architecture of fig. 4 are stored in the first memory or the second memory shown in fig. 2 or 3.

In some embodiments, taking the magic mirror application (photographing application) as an example, when the remote control receiving device receives a remote control input operation, a corresponding hardware interrupt is sent to the kernel layer. The kernel layer processes the input operation into an original input event (including information such as a value of the input operation, a timestamp of the input operation, etc.). The raw input events are stored at the kernel layer. The application program framework layer obtains an original input event from the kernel layer, identifies a control corresponding to the input event according to the current position of the focus and uses the input operation as a confirmation operation, the control corresponding to the confirmation operation is a control of a magic mirror application icon, the magic mirror application calls an interface of the application framework layer to start the magic mirror application, and then the kernel layer is called to start a camera driver, so that a static image or a video is captured through the camera.

In some embodiments, for a display device with a touch function, taking a split screen operation as an example, the display device receives an input operation (such as a split screen operation) that a user acts on a display screen, and the kernel layer may generate a corresponding input event according to the input operation and report the event to the application framework layer. The window mode (such as multi-window mode) corresponding to the input operation, the position and size of the window and the like are set by an activity manager of the application framework layer. And the window management of the application program framework layer draws a window according to the setting of the activity manager, then sends the drawn window data to the display driver of the kernel layer, and the display driver displays the corresponding application interface in different display areas of the display screen.

In some embodiments, as shown in fig. 5, the application layer containing at least one application may display a corresponding icon control in the display, such as: the system comprises a live television application icon control, a video on demand application icon control, a media center application icon control, an application center icon control, a game application icon control and the like.

In some embodiments, the live television application may provide live television via different signal sources. For example, a live television application may provide television signals using input from cable television, radio broadcasts, satellite services, or other types of live television services. And, the live television application may display video of the live television signal on the display device 200.

In some embodiments, a video-on-demand application may provide video from different storage sources. Unlike live television applications, video on demand provides a video display from some storage source. For example, the video on demand may come from a server side of the cloud storage, from a local hard disk storage containing stored video programs.

In some embodiments, the media center application may provide various applications for multimedia content playback. For example, a media center, which may be other than live television or video on demand, may provide services that a user may access to various images or audio through a media center application.

In some embodiments, an application center may provide storage for various applications. The application may be a game, an application, or some other application associated with a computer system or other device that may be run on the smart television. The application center may obtain these applications from different sources, store them in local storage, and then be operable on the display device 200.

The following describes a flow of the display device entering the STR standby state from the power-on state and a flow of the display device entering the power-on state from the STR standby state, taking an STR (Suspend To RAM, also called memory standby mode) standby state as an example:

for example, a user may input a standby instruction to the display device in the power-on state by pressing a power key on the control device, and after receiving the standby instruction, the display device stores the hardware operating state information into a memory (e.g., RAM), releases the hardware resources (e.g., a display, a hard disk, an external device, etc.) in use, and freezes a process; the PM module controls the power supply circuit to power down other hardware except the RAM and the MCU, namely the power supply circuit is controlled to only keep supplying power to the RAM and the MCU; and transmitting the off-screen broadcast to turn off the display. At this point, the display device enters the STR standby state. When the display device is in an STR standby state, the power consumption of the whole machine can be reduced.

In some embodiments, the dc standby does not cut off the 220V ac power supply, but only the main power circuit in the display device has no power output and does not supply power to the load, so that the display device is "without picture, without light and without sound", and the power supply still has a part of circuits in working state, and can directly press the power key on the control device to start.

The embodiment of the application provides a method for protecting a hard disk based on a DC standby or STR standby scene, and the method comprises the following steps:

controlling the power management circuit to enable the display equipment to be in a starting state;

in some embodiments, in the power-on state, the usb interface is powered on, the hard disk operates normally, and the magnetic head operates normally.

Receiving a standby instruction input by a user operating the control device through a user interface;

in some embodiments, the user interface may receive a standby instruction input by a user by pressing a power key on the control device.

Stopping writing data into the hard disk in response to a standby instruction input by a user;

in some embodiments, the system, upon detecting a standby instruction, notifies the processes to stop writing data to the hard disk.

Unloading the hard disk;

in some embodiments, after stopping writing data into the hard disk, the operating system performs an unloading operation of the hard disk, that is, unloading the hard disk mounted into the system.

Sending a sleep instruction to the hard disk to enable the hard disk to sleep;

in some embodiments, after the hard disk is unloaded, a sleep instruction is sent to the hard disk, so that the hard disk can be directly put to sleep. At this time, the hard disk head normally stops rotating.

And controlling the power failure of the universal serial bus interface.

In some embodiments, in a dc standby or STR standby scenario, with reference to fig. 6, the method includes the following steps:

step S601: controlling the power management circuit to enable the display equipment to be in a starting state;

step S602: receiving a standby instruction input by a user operating the control device through a user interface;

step S603: stopping writing data into the hard disk in response to a standby instruction input by a user;

step S604: unloading the hard disk;

step S605: sending a sleep instruction to the hard disk to enable the hard disk to sleep;

step S606: and controlling the power failure of the universal serial bus interface.

In the embodiment of the application, the magnetic head of the mechanical hard disk is actively and normally reset and stops running, and then the universal serial bus interface is powered off, so that the magnetic disk is not influenced. Therefore, no abnormal sound is generated and no damage is caused to the hard disk when the direct current standby mode or the STR standby mode is carried out.

The ac shutdown is generally a state in which a 220V ac power supply is completely cut off after a power line is pulled out and a power switch is turned off.

In a scenario of ac shutdown, an embodiment of the present application provides another method for protecting a hard disk, where the method includes the following steps:

in some embodiments, the ac shutdown scenario refers to that the display device is in a power-on state, the usb interface is powered on, the hard disk normally operates, and the magnetic head normally operates. When the power supply is pulled off or the power switch is turned off, the display equipment is suddenly powered off, so that the universal serial bus interface is powered off.

When detecting that the universal serial bus interface is powered off, a General Purpose Input Output (GPIO) interface of the interface conversion board sends a command of stopping the work of the hard disk to a drive of the interface conversion board; and the drive of the interface conversion board controls the hard disk to stop working.

In some embodiments, after the usb interface is powered down, the capacitor in the interface conversion board starts to supply power, so that the input/output interface sends an instruction to the drive to stop the operation of the hard disk in a short time of the power supply of the capacitor, and the drive controls the hard disk to stop the operation, thereby stopping the operation of the hard disk normally.

In some embodiments, in the scenario of ac shutdown, with reference to fig. 7, the method for protecting the hard disk includes the following steps:

step S701: when detecting that the universal serial bus interface is powered off, a General Purpose Input Output (GPIO) interface of the interface conversion board sends a command of stopping the work of the hard disk to a drive of the interface conversion board;

step S702: and the drive of the interface conversion board controls the hard disk to stop working.

In the embodiment of the application, after the ac is turned off, the capacitor in the interface conversion board may temporarily supply power for a short time under the condition that the usb interface stops supplying power. When detecting the power failure of the universal serial bus interface, the interface conversion board can send a command of stopping the work of the hard disk so as to enable the magnetic head of the hard disk to normally reset and stop running without any influence on the magnetic disk. Therefore, when the alternating current is turned off, no abnormal sound is generated, and no damage is caused to the hard disk.

In some embodiments, the hard disk may be jointly protected by both the methods of fig. 6 and 7. That is, when the dc standby or STR standby occurs, the method shown in fig. 6 is used to protect the hard disk on the software level. When an ac shutdown occurs, the method shown in fig. 7 is used to protect the hard disk on the hardware level. After the two methods are combined for use, the hard disk can be protected more comprehensively, and the service life of the hard disk is prolonged.

In the above embodiment, after the user inputs the standby instruction, the hard disk is unloaded first, and the sleep instruction is sent to make the hard disk sleep, so that the magnetic head of the hard disk stops rotating normally, and then the power down of the usb interface is performed, thereby avoiding damage to the hard disk during standby. After display device cuts off the power supply suddenly, the interface converter board can detect the power down of USB interface, and the built-in electric capacity of interface converter board can supply power for the short time, and during its power supply, the instruction that the hard disk stopped working can be assigned to the interface converter board to make the hard disk magnetic head normally stop rotatory, thereby avoid causing the damage to the hard disk when the interchange shuts down, prolong its life.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present 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 (10)

1. A display device, comprising:

a display;

a universal serial bus interface;

a power management circuit;

a controller for performing:

under the condition that the power management circuit is controlled to enable the display equipment to be in a starting state and the hard disk works normally, the writing of data into the hard disk is stopped in response to a standby instruction input by a user; unloading the hard disk; sending a sleep instruction to the hard disk to enable the hard disk to sleep;

and controlling the power failure of the universal serial bus interface.

2. The display device of claim 1, wherein the standby instruction comprises a direct current standby instruction or a suspend to memory standby instruction.

3. A display device, comprising:

a display;

a controller;

a hard disk;

the interface conversion board is internally provided with a capacitor, and the capacitor is used for supplying power after the power failure of a universal serial bus interface of the display equipment;

the interface conversion board is connected with the controller through the universal serial bus interface, and the interface conversion board is connected with the hard disk;

the interface conversion board is used for executing the following steps:

and when detecting that the universal serial bus interface is powered off, sending an instruction for stopping the work of the hard disk so as to stop the work of the hard disk.

4. The display device of claim 3, wherein the interface converter board is configured to perform in particular:

when detecting that the universal serial bus interface is powered off, the universal input/output interface sends a command of stopping the work of the hard disk to the drive so that the drive controls the hard disk to stop working.

5. A display system, comprising:

a display device;

a hard disk;

the interface conversion board is internally provided with a capacitor, and the capacitor is used for supplying power after the power failure of a universal serial bus interface of the display equipment;

the hard disk is connected with the display equipment through the interface conversion plate;

the interface conversion board is used for executing the following steps:

and when detecting that the universal serial bus interface is powered off, sending an instruction for stopping the work of the hard disk so as to stop the work of the hard disk.

6. The display system of claim 5, wherein the interface converter board is configured to perform in particular:

when detecting that the universal serial bus interface is powered off, the universal input/output interface sends a command of stopping the work of the hard disk to the drive so that the drive controls the hard disk to stop working.

7. A method of protecting a hard disk, comprising:

under the condition that the power management circuit is controlled to enable the display equipment to be in a starting state and the hard disk works normally, the writing of data into the hard disk is stopped in response to a standby instruction input by a user; unloading the hard disk; sending a sleep instruction to the hard disk to enable the hard disk to sleep;

and controlling the power failure of the universal serial bus interface.

8. The method of claim 7, wherein the standby instruction comprises a DC standby instruction or a suspend to memory standby instruction.

9. A method of protecting a hard disk, comprising:

when detecting that the universal serial bus interface of the display equipment is powered off, the interface conversion board sends a command of stopping the work of the hard disk so as to stop the work of the hard disk;

the interface adapter plate is internally provided with a capacitor, and the capacitor is used for supplying power after the universal serial bus interface of the display device is powered off.

10. The method according to claim 9, comprising in particular:

when detecting that the universal serial bus interface of the display device is powered off, the universal input/output interface of the interface conversion board sends a command of stopping the work of the hard disk to the drive of the interface conversion board, so that the drive of the interface conversion board controls the hard disk to stop working;

the interface adapter plate is internally provided with a capacitor, and the capacitor is used for supplying power after the universal serial bus interface of the display device is powered off.

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