Audio-visual apparatus, control apparatus, and control method for audio-visual apparatus

Abstract

The embodiment of the invention provides audio-visual equipment and a control method of the audio-visual equipment, and relates to the technical field of display. The audio-visual equipment comprises a USB interface which is configured to supply power to control equipment after the control equipment is connected with the audio-visual equipment through the USB interface; the controller is configured to receive the instruction sent by the control equipment and control the audio-visual equipment to enter the target mode when the code matching between the instruction sent by the control equipment and a target instruction used for controlling the audio-visual equipment to enter the target mode is successful; the target mode is used for setting a multimedia playing parameter of the audio-visual equipment as a preset playing parameter and setting a multimedia source as control equipment; and the player is configured to acquire the multimedia file through the control equipment after the audio-visual equipment enters the target mode, and play the multimedia file acquired through the control equipment based on preset play parameters. The embodiment of the invention is used for preventing a user from entering the target mode by mistake while conveniently controlling the audio-visual equipment to enter the target mode.

Description

Technical Field

[0001] The present application relates to the field of display technologies, and in particular, to an audiovisual device, a control device, and a control method for an audiovisual device. Background Art

[0002] Audiovisual devices such as televisions and speakers usually work in the Home mode. In this mode, users can adjust the display parameters, audio parameters, signal sources, etc. of the audiovisual device according to their needs to obtain the audiovisual effect that best meets their own needs. When the audiovisual device is displayed in a mall, to prevent users from failing to operate the audiovisual device or having a poor audiovisual effect, the Shop mode is usually locked to manage the state of the audiovisual device.

[0003] Currently, in the related art, special instructions are generally used to control the audiovisual device to enter the mall mode. However, controlling the audiovisual device to enter the mall mode through special instructions is relatively complex and cannot prevent users from accidentally entering the mall mode. Summary of the Invention

[0004] To solve the above technical problems or at least partially solve the above technical problems, the present application provides an audiovisual device, a control device, and a control method for an audiovisual device, so as to conveniently control the audiovisual device to enter the mall mode while preventing users from accidentally entering the mall mode.

[0005] The technical solutions provided by the embodiments of the present application are as follows:

[0006] In a first aspect, an embodiment of the present application provides an audiovisual device, including: a Universal Serial Bus (USB) interface, a controller, and a player;

[0007] The USB interface is configured to supply power to the control device after the control device is connected to the audiovisual device through the USB interface;

[0008] The controller is configured to receive an instruction sent by the control device, and control the audiovisual device to enter the target mode when the instruction sent by the control device is successfully paired with a target instruction for controlling the audiovisual device to enter the target mode; the target mode is used to set the multimedia playback parameters of the audiovisual device to preset playback parameters and set the multimedia source of the audiovisual device to the control device;

[0009] The player is configured to obtain a multimedia file through the control device after the audiovisual device enters the target mode, and play the multimedia file obtained through the control device based on the preset playback parameters.

[0010] Second aspect, an embodiment of the present application provides a control device, including: a Universal Serial Bus (USB) interface and a processor;

[0011] The USB interface is configured to obtain power from the audiovisual device after the control device is connected to the audiovisual device through the USB interface, so as to power on the control device;

[0012] The processor is configured to, after the control device is powered on, send a target instruction for controlling the audiovisual device to enter a target mode to the audiovisual device, so as to control the audiovisual device to enter the target mode, obtain a multimedia file through the control device, and play the multimedia file obtained through the control device based on preset playback parameters;

[0013] Wherein, the target mode is used to set the multimedia playback parameters of the audiovisual device to the preset playback parameters, and set the multimedia source of the audiovisual device to the control device.

[0014] Third aspect, an embodiment of the present application provides a control method for an audiovisual device, which is applied to the audiovisual device. The method includes:

[0015] After the audiovisual device is connected to the control device through the USB interface, supply power to the control device through the USB interface;

[0016] Receive an instruction sent by the control device;

[0017] When the instruction sent by the control device is successfully paired with a target instruction for controlling the audiovisual device to enter a target mode, enter the target mode; the target mode is used to set the multimedia playback parameters of the audiovisual device to preset playback parameters, and set the multimedia source of the audiovisual device to the control device;

[0018] Obtain a multimedia file through the control device;

[0019] Play the multimedia file obtained through the control device based on the preset playback parameters.

[0020] Fourth aspect, an embodiment of the present application provides a control method for an audiovisual device, which is applied to a control device. The method includes:

[0021] After the control device is connected to the audiovisual device through the USB interface, obtain power from the audiovisual device through the USB interface, so as to power on the control device;

[0022] After the control device is powered on, a target instruction for controlling the audio-visual device to enter a target mode is sent to the audio-visual device to control the audio-visual device to enter the target mode, obtain a multimedia file through the control device, and play the multimedia file obtained through the control device based on preset playback parameters;

[0023] Wherein, the target mode is used to set the multimedia playback parameters of the audio-visual device to the preset playback parameters and set the multimedia source of the audio-visual device to the control device.

[0024] In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a computing device, the computing device is enabled to implement the control method of the audio-visual device described in the third aspect or the fourth aspect.

[0025] As can be seen from the above technical solutions, the audio-visual device provided by the embodiment of the present application includes: a USB interface, a controller, and a player. Among them, the USB interface can supply power to the external device after connecting to the external device; the controller can receive the instruction sent by the external device and control the audio-visual device to enter the target mode when the instruction sent by the external device is successfully paired with the target instruction for controlling the audio-visual device to enter the target mode. The player can obtain a multimedia file through the control device after the audio-visual device enters the target mode and play the multimedia file obtained through the control device based on the preset playback parameters. Since the audio-visual device provided by the embodiment of the present application can control the audio-visual device to enter the target mode when the instruction sent by the external device is successfully paired with the target instruction for controlling the audio-visual device to enter the target mode, the management personnel only need to connect a dedicated external device through the USB interface of the audio-visual device to make the audio-visual device enter the target mode. Therefore, the embodiment of the present application can conveniently control the audio-visual device to enter the mall mode for setting the multimedia playback parameters of the audio-visual device to the preset playback parameters and setting the multimedia source of the audio-visual device to the control device. On the other hand, since the audio-visual device needs to connect to a dedicated external device to enter the target mode, and ordinary users do not have the dedicated external device, the embodiment of the present application can also prevent users from accidentally entering the mall mode. In summary, the embodiment of the present application can conveniently control the audio-visual device to enter the mall mode while preventing users from accidentally entering the mall mode. Description of the Drawings

[0026] To more clearly illustrate the embodiments of the present application or the implementation manners in the related art, the following will briefly introduce the drawings required for use in the description of the embodiments or the related art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0027] Figure 1 A schematic diagram showing an operation scenario between an audiovisual device and a control device in some embodiments;

[0028] Figure 2 A block diagram showing the hardware configuration of an audiovisual device in some embodiments;

[0029] Figure 3 A block diagram showing the hardware configuration of a control device in some embodiments;

[0030] Figure 4 A flowchart showing the steps of a control method for an audiovisual device in some other embodiments;

[0031] Figure 5 A block diagram showing the interface and hardware interaction between an audiovisual device and a control device in some other embodiments;

[0032] Figure 6 A block diagram showing the interface and hardware interaction between an audiovisual device and a control device in some other embodiments;

[0033] Figure 7 A block diagram showing the interface and hardware interaction between an audiovisual device and a control device in some other embodiments;

[0034] Figure 8 A block diagram showing the interface and hardware interaction between an audiovisual device and a control device in some other embodiments. Detailed implementation manners

[0035] To make the objectives and implementation manners of the present application clearer, the following will clearly and completely describe the exemplary implementation manners of the present application with reference to the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only a part of the embodiments of the present application, rather than all of the embodiments.

[0036] It should be noted that the brief description of the terms in the present application is only for the convenience of understanding the following described implementation manners, rather than intending to limit the implementation manners of the present application. Unless otherwise specified, these terms should be understood in their ordinary and common meanings.

[0037] In this application, terms such as "first", "second", "third", etc. in the description, claims and the above-mentioned drawings are used to distinguish similar or like objects or entities, and do not necessarily mean to limit a specific order or sequence, unless otherwise noted. It should be understood that such terms can be interchanged under appropriate circumstances.

[0038] The terms "comprising" and "having" and any variations thereof are intended to cover but not exclusively include. For example, a product or device comprising a series of components does not necessarily have to be limited to all the components clearly listed, but may include other components not clearly listed or inherent to these products or devices.

[0039] In the related art, it is generally to control an audio-visual device to enter the mall mode by sending special instructions to the audio-visual device. For example: the way some TVs enter the mall mode is: long press the OK key in the channel search menu to make the TV enter the mode selection interface, and then input and select the mall mode and input the instruction code corresponding to the mall mode to enter the mall mode. This method of inputting the pre-set password of the manufacturer later has some problems. Specifically, this method requires the management personnel to control the audio-visual device to enter the mall mode through specific operations and / or instructions, and in order to prevent users from accidentally entering the mall mode, these specific operations and / or instructions need to be set more complexly. However, because the operations and / or instructions need to be set more complexly, there is a problem of inconvenient operation in this method of controlling the audio-visual device to enter the mall mode, and even if the operations and / or instructions for controlling the audio-visual device to enter the mall mode are set more complexly, it is not possible to completely prevent users from accidentally entering the mall mode in the face of a large customer group. In order to conveniently control the audio-visual device to enter the mall mode while preventing users from accidentally entering the mall mode, the present application provides the following technical solutions.

[0040] Figure 1 It is a schematic diagram of the operation scenario between the audio-visual device and the control device according to the embodiment. As Figure 1It is illustrated by taking an audiovisual device as the display device. When the control device 100 is not connected to the audiovisual device 200, the audiovisual device is in the home mode, and the user can operate the audiovisual device 200 through the smart terminal 300 or the remote control 400. When the control device 100 is connected to the audiovisual device through a Universal Serial Bus (USB) interface, the audiovisual device 200 enters the target mode, and the user can control the audiovisual device 200 through the wired controller of the control device 100. When the audiovisual device 200 runs in the target mode, in some cases, the audiovisual device 200 can read and play the multimedia files stored in the control device 100; in other cases, the control device 100 can obtain multimedia files from the server 500 through a wired network or a wireless network, and send the multimedia files obtained from the server 500 to the audiovisual device 200 through a High-Definition Multimedia Interface (HDMI) interface, so that the audiovisual device plays the multimedia files obtained through the HDMI interface.

[0041] The audiovisual device provided by the embodiment of the present application can have various implementation forms. For example, it can be a laser TV, a liquid crystal TV, an OLED TV, a monitor, an electronic bulletin board, an electronic table, a smart speaker, a home theater speaker, etc.

[0042] In some embodiments, the target mode is the Shop mode. Among them, the shop mode is a special working mode relative to the home mode. The audiovisual device usually works in the home mode. In the home mode, the brightness, contrast, chroma, sharpness, volume, timbre, and signal source of the audiovisual device can be arbitrarily adjusted by the user according to needs to obtain the audiovisual effect that best meets the user's own needs. In the shop mode, some or all of the parameters of the TV set adopt the shop mode parameters pre-stored by the manufacturer. The shop mode parameters can include brightness parameters, contrast parameters, chroma parameters, sharpness parameters, volume, timbre, etc., and are stored in the memory. In the case of using the shop mode parameters, the audiovisual device can present the best audiovisual state that it can achieve and satisfy most users, and can disable some or all of the functions of the keys and the remote control to prevent the user from changing the shop mode parameters. In addition, to achieve a better audiovisual state, the shop mode can also lock the multimedia source of the audiovisual device, so that the audiovisual device plays the specified multimedia file.

[0043] Figure 2The configuration block diagram of the audiovisual device 200 in the embodiments of the present application is exemplarily shown. The audiovisual device 200 in the embodiments of the present application includes at least one of a tuner demodulator 210, a communicator 220, a detector 230, an external device interface 240, a controller 250, a display 260, an audio output interface 270, a memory, a power supply, and a user interface.

[0044] In some embodiments, the controller 250 includes a processor, a video processor, an audio processor, a graphics processor, a RAM, a ROM, and a first interface to an nth interface for input / output.

[0045] The display 260 includes a display screen component for presenting a picture, and a driving component for driving image display, which is used to receive an image signal output from the controller and display video content, image content, a menu control interface, and a user control UI interface. The display 260 can be a liquid crystal display, an OLED display, or a laser projection display.

[0046] The 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, other network communication protocol chips or near-field communication protocol chips, and an infrared receiver. The audiovisual device 200 can establish a data transmission link with a control device 100, a smart terminal 300, a remote control 400, and a server 500 through the communicator 220, and send and receive control signals and data signals through the data transmission link.

[0047] The user interface can be used to receive control signals input by the user through the remote control 400 (such as an infrared remote control, etc.), touch, or gestures.

[0048] The detector 230 is used to collect signals from the external environment or for external interaction. For example, the detector 230 includes a light receiver, a sensor for collecting ambient light intensity; or, the detector 230 includes an image collector, such as a camera, which can be used to collect external environmental scenes, user attributes, or user interaction gestures. Or, the detector 230 includes a sound collector, such as a microphone, etc., for receiving external sounds.

[0049] The external device interface 240 may include, but is not limited to, the following: a high-definition multimedia interface (HDMI interface), an analog or data high-definition component input interface (component), a composite video input interface (CVBS), a USB interface, an RGB port, or any one or more of such interfaces. It can also be a composite input / output interface formed by the above multiple interfaces.

[0050] The tuner demodulator 210 receives broadcast television signals through wired or wireless reception, and demodulates audio and video signals, such as EPG data signals, from multiple wireless or wired broadcast television signals.

[0051] In some embodiments, the controller 250 and the tuner demodulator 210 may be located in different separate devices, that is, the tuner demodulator 210 may also be in an external device of the main device where the controller 250 is located, such as an external set-top box.

[0052] The controller 250 controls the operation of the display device and responds to user operations through various software control programs stored in the memory. The controller 250 controls the overall operation of the audio-visual device 200. For example: in response to receiving a user command for selecting a UI object to be displayed on the display 260, the controller 250 can perform operations related to the object selected by the user command.

[0053] In some embodiments, the controller includes at least one of a Central Processing Unit (CPU), a video processor, an audio processor, a Graphics Processing Unit (GPU), a Random Access Memory (RAM), a Read-Only Memory (ROM), a first interface to an nth interface for input / output, a communication bus, etc.

[0054] The user can input a user command on the Graphic User Interface (GUI) displayed on the display 260, and then the user interface receives the user input command through the graphic user interface (GUI). Alternatively, the user can input a user command by inputting a specific sound or gesture, and then the user interface receives the user input command by recognizing the sound or gesture through a sensor. The "user interface" is a media interface for interaction and information exchange between an application program or an operating system and the user, and it realizes the conversion between the internal form of information and the form acceptable to the user. The common manifestation form of the user interface is the graphic user interface, which refers to the user interface related to computer operation displayed in a graphic manner. It can be an icon, a window, a control, etc. interface element displayed on the display screen of an electronic device, where the control can include visible interface elements such as icons, buttons, menus, tabs, text boxes, dialog boxes, status bars, navigation bars, Widgets, etc.

[0055] In some embodiments, after the control device 100 is connected to the audiovisual device 200 through the USB interface in the external device interface 240, the audiovisual device 200 can supply power to the control device 100. The controller 250 can receive the instructions sent by the control device 100, and when the instructions sent by the control device 100 are successfully paired with the target instructions for controlling the audiovisual device to enter the target mode, control the audiovisual device to enter the target mode; the target mode is used to set the multimedia playback parameters of the audiovisual device to preset playback parameters and set the multimedia source of the audiovisual device to the control device 100. The player (including at least one of the display 260 and the audio output port 270) can, after the audiovisual device 200 enters the target mode, obtain multimedia files through the control device 100 and play the multimedia files obtained through the control device 100 based on the preset playback parameters.

[0056] In some embodiments, the USB interface may include four pins, two of which are used for data transmission, and the other two pins are used to supply power to the control device 100 connected through the USB interface. Therefore, when the audiovisual device detects that another device is connected through the USB interface, it can supply power to the control device 100 through the two pins used to supply power to the control device 100.

[0057] In some embodiments, the audiovisual device 200 can output 5V direct current to the control device 100 through the USB interface.

[0058] In some embodiments, the preset playback parameters include at least one of audio and video playback parameters such as brightness, contrast, chroma, sharpness, volume, and timbre.

[0059] Setting the multimedia source of the audiovisual device to the control device in the target mode can enable the audiovisual device to play specified multimedia files, thereby enabling the audiovisual device to present a better audiovisual state and further enhancing the user experience.

[0060] The audiovisual device provided by the embodiment of the present application includes: a USB interface, a controller, and a player. Among them, the USB interface can supply power to the external device after connecting to the external device; the controller can receive the instructions sent by the external device, and when the instructions sent by the external device are successfully paired with the target instructions for controlling the audiovisual device to enter the target mode, control the audiovisual device to enter the target mode. The player can, after the audiovisual device enters the target mode, obtain multimedia files through the control device, and play the multimedia files obtained through the control device based on the preset playback parameters. Since the audiovisual device provided by the embodiment of the present application can control the audiovisual device to enter the target mode when the instructions sent by the external device are successfully paired with the target instructions for controlling the audiovisual device to enter the target mode, the management personnel only need to connect a dedicated external device through the USB interface of the audiovisual device to make the audiovisual device enter the target mode. Therefore, the embodiment of the present application can conveniently control the audiovisual device to enter the mall mode for setting the multimedia playback parameters of the audiovisual device to the preset playback parameters and setting the multimedia source of the audiovisual device to the control device. On the other hand, since the audiovisual device needs to be connected to a dedicated external device to enter the target mode, and ordinary users do not have this dedicated external device, the embodiment of the present application can also prevent users from accidentally entering the mall mode. In summary, the embodiment of the present application can conveniently control the audiovisual device to enter the mall mode while preventing users from accidentally entering the mall mode.

[0061] In some embodiments, the controller 250 can also disable the keys and / or remote control function of the audiovisual device 200 after the audiovisual device 200 enters the target mode.

[0062] Since the above embodiment can also disable the keys and / or remote control function of the audiovisual device 250 after the audiovisual device 200 enters the target mode, the above embodiment can prevent customers in the mall from operating the audiovisual device (adjusting playback parameters and / or switching multimedia sources) through the keys and / or remote control function, thereby affecting the playback effect of the audiovisual device.

[0063] In some embodiments, the controller 250 can also receive the control instructions sent by the control device after the audiovisual device 200 enters the target mode, and adjust the playback parameters of the audiovisual device according to the control instructions.

[0064] For example: The user operates the "Volume +" button on the wired controller of the control device, so that the control device sends a control instruction for increasing the volume to the audiovisual device, and then the control device increases its own audio playback volume according to the control instruction for increasing the volume.

[0065] In some embodiments, the controller 250 is specifically configured to receive Human Interface Device (HID) instructions sent by the control device through the USB interface.

[0066] That is, after the audiovisual device 200 powers the control device through the USB interface, it receives the HID instructions sent by the control device through the USB interface, and determines whether the HID instructions sent by the control device are the same as the target instructions for controlling the audiovisual device to enter the target mode.

[0067] In some embodiments, the audiovisual device 200 is also connected to the control device through the HDMI interface in the external device interface 240. The controller 250 is specifically configured to receive HDMI Consumer Electronics Control (HDMI-CEC) instructions sent by the control device through the HDMI interface.

[0068] Specifically, HDMI-CEC is a function in the HDMI specification that allows communication and control between devices connected through HDMI. HDMI-CEC instructions are commands for sending control signals between devices that support the HDMI-CEC function. HDMI-CEC instructions can be used to control various functions of a device, such as: entering the target mode, turning on the device, turning off the device, switching the input source, adjusting the volume, etc.

[0069] That is, the audiovisual device 200 and the control device are connected through two pairs of interfaces. One pair of interfaces is the USB interface of the audiovisual device 200 and the USB interface of the control device, and the other pair of interfaces is the HDMI interface of the audiovisual device 200 and the HDMI interface of the control device. After the audiovisual device 200 powers the control device through the USB interface, the control device sends HDMI-CEC instructions to the audiovisual device 200 through the HDMI interface. After the audiovisual device 200 receives the HDMI-CEC instructions sent by the control device, it determines whether the HDMI-CEC instructions are the same as the target instructions for controlling the audiovisual device to enter the target mode.

[0070] In some embodiments, the player of the audio-visual device 200 (including: the display 260 and the audio output interface 270) is specifically configured to: in the case where the control device 100 does not send a multimedia file through the HDMI interface, read the multimedia file stored in the control device 100 through the USB interface, and play the multimedia file read from the control device through the USB interface; in the case where the control device 100 sends a multimedia file through the HDMI interface, play the multimedia file received through the HDMI interface.

[0071] Since the audio-visual device 200 provided in the above embodiments can also stop playing the multimedia file read from the control device when receiving the multimedia file sent by the control device through the HDMI interface, and play the multimedia file received through the HDMI interface, the above embodiments can also realize the playback of online videos, and thus update the playback content in the target mode conveniently and quickly.

[0072] In some embodiments, the controller 250 of the audio-visual device 200 is further configured to periodically detect the connection state of the control device at a preset duration as a cycle, and when it is detected that the control device is disconnected from the audio-visual device, control the audio-visual device 200 to exit the target mode.

[0073] In some embodiments, the preset duration can be 10 seconds. That is, the audio-visual device 200 detects whether the control device is still in a connected state every 10 seconds. If it is detected that the control device 100 is disconnected from the audio-visual device, the audio-visual device 200 is controlled to exit the target mode.

[0074] Controlling the audio-visual device 200 to exit the target mode when it is detected that the control device is disconnected from the audio-visual device can enable the audio-visual device 200 to conveniently exit the target mode.

[0075] Figure 3 Exemplarily shows a configuration block diagram of the control device 100 according to an exemplary embodiment. As Figure 3 shown, the control device 100 includes: a processor 110, a memory 120, a communication interface 130, and a user input module 140.

[0076] In some embodiments, the processor 110 includes at least one of: a processing chip, a video processor, an audio processor, a graphics processor, a RAM, and a ROM.

[0077] In some embodiments, the communication interface 130 includes at least one of: an HDMI interface, a USB interface, a Bluetooth module, a WIFI module, etc.

[0078] In some embodiments, the user input module 140 includes at least one of a remote controller, a microphone, a touchpad, and a button.

[0079] After the control device 100 is connected to the audiovisual device 200 through the USB interface in the communication interface 130, the control device 100 can send a control instruction for controlling the audiovisual device 200 to enter a target mode to control the audiovisual device to enter the target mode. Wherein, the target mode is used to set the multimedia playback parameters of the audiovisual device to the preset playback parameters and set the multimedia source of the audiovisual device to the control device. The communication interface 130 can transmit the multimedia files stored in the memory 120 to the audiovisual device 200 through the USB interface, or output the multimedia files received through HDMI to the audiovisual device 200 through the HDMI output interface.

[0080] In some embodiments, the control device can also convert the control operation of the user through the user input module 140 into an instruction recognizable and responsive by the audiovisual device 200, and send the control instruction to the audiovisual device 200 to control the audiovisual device 200.

[0081] In some embodiments, the USB interface in the communication interface 130 is configured to obtain power from the audiovisual device 200 after the control device 100 is connected to the audiovisual device 200 through the USB interface to power on the control device; the processor 110 is configured to send a target instruction for controlling the audiovisual device 200 to enter a target mode to the audiovisual device 200 after the control device 100 is powered on. Wherein, the target mode is used to set the multimedia playback parameters of the audiovisual device to the preset playback parameters and set the multimedia source of the audiovisual device to the control device.

[0082] Since the control device 100 can send a target instruction for controlling the audiovisual device 200 to enter a target mode to the audiovisual device 200 after being powered on, and the target mode is used to set the multimedia playback parameters of the audiovisual device to the preset playback parameters and set the multimedia source of the audiovisual device to the control device, the control device 100 sending a target instruction to the audiovisual device 200 can control the audiovisual device 200 to enter the target mode, obtain multimedia files through the control device 100, and play the multimedia files obtained through the control device based on the preset playback parameters.

[0083] That is, after being powered on, the control device 100 will automatically send a target instruction for controlling the audiovisual device 200 to enter a target mode to an external device, thereby controlling the audiovisual device 200 to enter the target mode.

[0084] In some embodiments, the processor 110 sends a target instruction for controlling the audiovisual device 200 to enter a target mode to the audiovisual device 200, including: the processor 110 sends a HID instruction to the audiovisual device 200 through the USB interface.

[0085] In some embodiments, the control device 100 is further connected to the audiovisual device 200 through the HDMI interface. The processor 110 sends a target instruction for controlling the audiovisual device 200 to enter a target mode to the audiovisual device 200, including: receiving an HDMI-CEC instruction sent by the audiovisual device 200 through the HDMI interface.

[0086] In some embodiments, the memory 120 is configured to store multimedia files; the communication interface 130 of the control device 100 includes: an input HDMI interface and an output HDMI interface, and the output HDMI interface is connected to the HDMI interface of the audiovisual device 200. The processor 110 is further configured to transmit the multimedia files stored in the memory to the audiovisual device 200 through the USB interface when no multimedia files are received through the input HDMI interface; when multimedia files are received through the input HDMI interface, transmit the multimedia files received through the input HDMI interface to the audiovisual device 200 through the output HDMI interface.

[0087] In some embodiments, the user input module 140 can receive a control operation input by a user and generate a control instruction corresponding to the control operation; the processor 110 is further configured to send the control instruction to the audiovisual device 200 to control the audiovisual device 200 to adjust playback parameters according to the control instruction.

[0088] In some embodiments, the processor 110 can send the control instruction to the audiovisual device 200 through the USB interface.

[0089] In some embodiments, the processor 110 can send the control instruction to the audiovisual device 200 through the HDMI interface.

[0090] The embodiments of the present application further provide a control method for an audiovisual device. Refer to Figure 4 As shown, the control method for the audiovisual device includes the following steps:

[0091] After the audiovisual device and the control device are connected through USB, the audiovisual device and the control device respectively execute the following steps S401 and S402:

[0092] S401. The audiovisual device supplies power to the control device through the USB interface.

[0093] S402. The control device obtains power from the audiovisual device through the USB interface to power on the control device.

[0094] After the control device is successfully powered on, the control device continues to execute the following step S403:

[0095] S403. The control device sends a target instruction to the audiovisual device to control the audiovisual device to enter the target mode.

[0096] Correspondingly, the audiovisual device receives the instruction sent by the control device.

[0097] Wherein, the target mode is used to set the multimedia playback parameters of the audiovisual device to preset playback parameters and set the multimedia source of the audiovisual device to the control device.

[0098] S404. The audiovisual device pairs the instruction sent by the control device with the target instruction for controlling the audiovisual device to enter the target mode.

[0099] Pairing the instruction sent by the control device with the target instruction for controlling the audiovisual device to enter the target mode means: comparing or matching the instruction sent by the control device with the target instruction for controlling the audiovisual device to enter the target mode to ensure the consistency or accuracy between the instruction sent by the control device and the target instruction for controlling the audiovisual device to enter the target mode.

[0100] In the above step S403, if the instruction sent by the control device fails to pair with the target instruction for controlling the audiovisual device to enter the target mode, then pair the instruction sent by the control device with other instructions, and if the instruction sent by the control device pairs successfully with the target instruction for controlling the audiovisual device to enter the target mode, then execute the following steps S405 - S407:

[0101] S405. The audiovisual device enters the target mode.

[0102] That is, the audiovisual device sets the multimedia playback parameters of the audiovisual device to preset playback parameters and sets the multimedia source of the audiovisual device to the control device.

[0103] S406. The audiovisual device obtains multimedia files through the control device.

[0104] In some embodiments, the multimedia file may be at least one of a video file, an audio file, a subtitle, etc.

[0105] S407. Play the multimedia files obtained through the control device based on the preset playback parameters.

[0106] After the audio-visual device provided by the embodiment of the present application powers on the control device, the control device can send a target instruction for controlling the audio-visual device to enter a target mode to the audio-visual device. When the instruction sent by the control device is successfully paired with the target instruction for controlling the audio-visual device to enter the target mode, the audio-visual device can be controlled to enter the target mode, obtain a multimedia file through the control device, and play the multimedia file obtained through the control device based on preset playback parameters. Since the audio-visual device provided by the embodiment of the present application can be controlled to enter the target mode when the instruction sent by the control device is successfully paired with the target instruction for controlling the audio-visual device to enter the target mode, the management personnel only need to connect the control device through the USB interface of the audio-visual device to make the audio-visual device enter the target mode. Therefore, the embodiment of the present application can conveniently control the audio-visual device to enter the target mode. On the other hand, since the audio-visual device needs to be connected to a dedicated control device to enter the target mode, and ordinary users do not have the control device, the embodiment of the present application can also prevent users from accidentally entering the target mode. In summary, the embodiment of the present application can conveniently control the audio-visual device to enter the target mode while preventing users from accidentally entering the target mode.

[0107] In some embodiments, the control device sending a target instruction for controlling the audio-visual device to enter a target mode to the audio-visual device includes: the control device sending a HID instruction to the audio-visual device through the USB interface.

[0108] Correspondingly, the audio-visual device receiving the instruction sent by the control device includes: the audio-visual device receiving the HID instruction sent by the control device through the USB interface.

[0109] When the implementation manner of the control device sending a target instruction for controlling the audio-visual device to enter a target mode to the audio-visual device is: the control device sending a HID instruction to the audio-visual device through the USB interface, the interface and hardware interaction block diagram between the audio-visual device and the control device can be as Figure 5 shown. Refer to Figure 5As shown, the control device 100 includes: a processor 110, a memory 120, and a USB interface 1301. The audio-visual device 200 includes: a controller 250, a player 290, and a USB interface 2401. The player 290 may specifically be the display 260 and / or the audio output interface 270 of the audio-visual device. Among them, the USB interface 1301 of the control device 100 is connected to the USB interface 2401 of the audio-visual device 200. After the USB interface 1301 is connected to the USB interface 2401, there are two links between the control device 100 and the audio-visual device. Among them, one link is a power transmission link, and the other link is a data transmission link. The audio-visual device 200 can supply power to the control device 100 through the power transmission link, and the control device 100 can draw power from the audio-visual device 200 through the power transmission link. After the control device 100 is powered on, the control device 100 can send a target instruction for controlling the audio-visual device 200 to enter a target mode to the audio-visual device in the form of an HID instruction through the data transmission link. After the audio-visual device 200 enters the target mode, the audio-visual device 200 can read the multimedia files stored in the control device 100 through the data transmission link.

[0110] In some embodiments, the control device sending a target instruction for controlling the audio-visual device to enter a target mode to the audio-visual device includes: the control device sending an HDMI-CEC instruction to the audio-visual device through an output HDMI interface.

[0111] Correspondingly, the audio-visual device receiving the instruction sent by the control device includes: the audio-visual device receiving the HDMI-CEC instruction sent by the control device through the HDMI interface.

[0112] When the implementation manner of the control device sending a target instruction for controlling the audio-visual device to enter a target mode to the audio-visual device is: the control device sending an HDMI-CEC instruction to the audio-visual device through an output HDMI interface, the interface and hardware interaction block diagram between the audio-visual device and the control device may be as Figure 6 shown. Refer to Figure 6As shown in the figure, the control device 100 includes: a processor 110, a memory 120, a USB interface 1301, and an output HDMI interface 1302. The audio-visual device 200 includes: a controller 250, a player 290, a USB interface 2401, and an HDMI interface 2402. Among them, the USB interface 1301 of the control device 100 is connected to the USB interface 2401 of the audio-visual device 200, and the output HDMI interface 1302 of the control device 100 is connected to the HDMI interface 2402 of the audio-visual device 200. There are three links between the control device 100 and the audio-visual device 200. Among them, the first link is a power transmission link created by the USB interface connection, the second link is a data transmission link created by the USB interface connection, and the third link is an instruction transmission link created by the HDMI interface connection. The audio-visual device 200 can supply power to the control device 100 through the power transmission link, and the control device 100 can draw power from the audio-visual device 200 through the USB link. After the control device 100 is powered on, the control device 100 can send a target instruction for controlling the audio-visual device 200 to enter the target mode to the audio-visual device in the form of an HDMI-CEC instruction through the instruction transmission link. After the audio-visual device 200 enters the target mode, the audio-visual device 200 can read the multimedia files stored in the control device 100 through the data transmission link.

[0113] In some embodiments, the audio-visual device control method provided in the above embodiments further includes: the control device obtains multimedia files from the server through the input HDMI interface, and sends the multimedia files obtained from the server to the audio-visual device through the output HDMI interface. Correspondingly, the audio-visual device receives the multimedia files sent by the control device through the HDMI interface, stops playing the multimedia files read from the control device, and plays the multimedia files received through the HDMI interface.

[0114] Exemplarily, referring to Figure 7 As shown in the figure, on the basis of the interaction framework diagram shown in Figure 6 As shown in the figure, the control device 100 includes: an input HDMI interface 1303. The control device 100 can also obtain multimedia files from the media resource server through the input HDMI interface 1303, and transmit the multimedia files obtained from the media asset server to the audio-visual device 200 through the output HDMI interface 1302. When the audio-visual device does not receive the multimedia files sent by the control device through the HDMI interface 2402, it reads the multimedia files stored in the control device through the USB interface 2401, and plays the multimedia files read from the control device through the USB interface. After receiving the multimedia files sent by the control device 100 through the HDMI interface 2402, it stops reading the multimedia files stored in the control device through the USB interface 2401, and plays the multimedia files received through the HDMI interface 2402.

[0115] In some embodiments, the audiovisual device may copy the multimedia files stored in the control device to the local disk and play the multimedia files based on the local disk.

[0116] In some embodiments, the audiovisual device may also read the multimedia files stored in the control device in the form of a data stream and play the multimedia files based on the data stream of the multimedia files read from the control device.

[0117] In some embodiments, the method for controlling an audiovisual device provided in the above embodiments further includes: the control device receives a control operation input by a user, generates a control instruction corresponding to the control operation, and sends the control instruction to the audiovisual device; the audiovisual device adjusts the playback parameters of the audiovisual device according to the control instruction.

[0118] In some embodiments, the control device may send the control instruction to the audiovisual device through a USB interface. Correspondingly, the audiovisual device receives the control instruction sent by the control device through the USB interface.

[0119] In other embodiments, the control device may send the control instruction to the audiovisual device through an output HDMI interface. Correspondingly, the audiovisual device receives the control instruction sent by the control device through the HDMI interface.

[0120] Exemplarily, with reference to Figure 8 as shown in Figure 8 it is illustrated by taking the control device receiving the control operation of the user through a wired controller as an example. Based on the interaction framework diagram shown in Figure 6 the control device 100 includes: a wired controller 1401. When the wired controller 1401 receives a control operation of the user (an operation on the keys or key combinations of the wired controller), the control device 100 may generate a corresponding control instruction and send the control instruction to the audiovisual device 200 through the USB interface 1301 or the output HDMI interface 1302. Correspondingly, the audiovisual device receives the control instruction sent by the control device through the USB interface 2401 or the output HDMI interface 2402 and adjusts the playback parameters according to the control instruction sent by the control device.

[0121] In some embodiments, the method for controlling an audiovisual device provided in the above embodiments further includes: the audiovisual device periodically detects the connection state of the control device at a preset time interval, and exits the target mode when it detects that the control device is disconnected from the audiovisual device.

[0122] As shown above, since the audiovisual device can exit the target mode when it detects that the control device is disconnected from the audiovisual device, the user only needs to disconnect the USB connection between the audiovisual device and the control device to make the audiovisual device exit the target mode. Therefore, the above embodiments can conveniently and quickly control the audiovisual device to exit the target mode.

[0123] In some embodiments, the embodiments of the present application also provide a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a computing device, the computing device is enabled to implement the control method of the audiovisual device provided in any of the above embodiments.

[0124] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not depart from the scope of the technical solutions of the embodiments of the present application.

[0125] For the sake of convenience of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussions are not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. According to the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. An audiovisual device, characterized in that, it includes: a Universal Serial Bus (USB) interface, a controller, and a player; the USB interface is configured to supply power to the control device after the control device is connected to the audiovisual device through the USB interface; the controller is configured to receive instructions sent by the control device, and when the instructions sent by the control device are successfully paired with a target instruction for controlling the audiovisual device to enter a target mode, control the audiovisual device to enter the target mode; the target mode is used to set the multimedia playback parameters of the audiovisual device to preset playback parameters and set the multimedia source of the audiovisual device to the control device; the player is configured to, after the audiovisual device enters the target mode, obtain multimedia files through the control device and play the multimedia files obtained through the control device based on the preset playback parameters.

2. The audiovisual device according to claim 1, characterized in that, the controller is further configured to: after the audiovisual device enters the target mode, disable the keys and / or remote control function of the audiovisual device, and when receiving a control instruction sent by the control device, adjust the playback parameters of the audiovisual device according to the control instruction.

3. The audiovisual device according to claim 1, characterized in that, the controller is specifically configured to receive Human Interface Device (HID) instructions sent by the control device through the USB interface; or; the audiovisual device further includes: a High-Definition Multimedia Interface (HDMI) interface, and the audiovisual device is also connected to the control device through the HDMI interface; the controller is specifically configured to receive HDMI Consumer Electronics Control (HDMI-CEC) instructions sent by the control device through the HDMI interface.

4. The audiovisual device according to claim 3, characterized in that, the player is specifically configured to: in the case where the control device does not send multimedia files through the HDMI interface, read the multimedia files stored in the control device through the USB interface and play the multimedia files read from the control device through the USB interface; in the case where the control device sends multimedia files through the HDMI interface, play the multimedia files received through the HDMI interface.

5. The audiovisual device according to any one of claims 1-4, characterized in that, the controller is further configured to periodically detect the connection status of the control device at a preset time interval, and when it is detected that the control device is disconnected from the audiovisual device, control the audiovisual device to exit the target mode.

6. A control device, characterized in that, it includes: a Universal Serial Bus (USB) interface and a processor; the USB interface is configured to draw power from the audiovisual device after the control device is connected to the audiovisual device through the USB interface to power on the control device; The processor is configured to, after the control device is powered on, send a target instruction for controlling the audio-visual device to enter a target mode to the audio-visual device, so as to control the audio-visual device to enter the target mode, obtain a multimedia file through the control device, and play the multimedia file obtained through the control device based on preset playback parameters; Wherein, the target mode is used to set the multimedia playback parameters of the audio-visual device to the preset playback parameters and set the multimedia source of the audio-visual device to the control device.

7. The control device according to claim 6, characterized in that, the control device further includes: a memory, an input High-Definition Multimedia Interface (HDMI) and an output HDMI interface; the output HDMI interface is connected to the HDMI interface of the audio-visual device; the memory is configured to store multimedia files; the processor is specifically configured to: when a multimedia file is not received through the input HDMI interface, transmit the multimedia file stored in the memory to the audio-visual device through the USB interface; when a multimedia file is received through the input HDMI interface, transmit the multimedia file received through the input HDMI interface to the audio-visual device through the output HDMI interface.

8. The control device according to claim 6, characterized in that, the control device further includes: a user input module; the user input module is configured to receive a control operation input by a user and generate a control instruction corresponding to the control operation; the processor is further configured to send the control instruction to the audio-visual device to control the audio-visual device to adjust the playback parameters according to the control instruction.

9. A control method for an audio-visual device, characterized in that, applied to an audio-visual device, the method includes: after the audio-visual device is connected to the control device through the USB interface, power the control device through the USB interface; receive an instruction sent by the control device; when the instruction sent by the control device is successfully paired with a target instruction for controlling the audio-visual device to enter a target mode, enter the target mode; the target mode is used to set the multimedia playback parameters of the audio-visual device to preset playback parameters and set the multimedia source of the audio-visual device to the control device; obtain a multimedia file through the control device; play the multimedia file obtained through the control device based on the preset playback parameters.

10. A control method for an audio-visual device, characterized in that, applied to a control device, the method includes: after the control device is connected to an audio-visual device through the USB interface, draw power from the audio-visual device through the USB interface to power on the control device; after the control device is powered on, send a target instruction for controlling the audio-visual device to enter a target mode to the audio-visual device, so as to control the audio-visual device to enter the target mode, obtain a multimedia file through the control device, and play the multimedia file obtained through the control device based on preset playback parameters; Wherein, the target mode is used to set the multimedia playback parameters of the audiovisual device to the preset playback parameters and set the multimedia source of the audiovisual device to the control device.

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