Display device, control device and low power prompt method of control device

Abstract

The present application provides a display device, a control device, and a low-battery prompt method for the control device. When the display device communicates with the control device, the control device receives a user's gesture operation based on a key, and generates a pulse current for sending a first key value corresponding to the key in response to the gesture operation. Before the control device sends the first key value to the display device, it determines whether the current value of the pulse current is lower than a preset current threshold to determine whether the battery is low, and when it is determined that the battery is low, it simultaneously sends a second key value to the display device to directly instruct the display device to display a prompt message that the control device is low in battery through the second key value. Based on the current value of the pulse current, it can accurately determine whether the control device is low in battery. At the same time, the control device directly instructs the display device to display the prompt message through the second key value, without the display device having to perform a low-battery judgment, so as to avoid affecting the original operation process of the display device.

Description

Technical Field

[0001] The present application relates to the technical field of intelligent display devices, and in particular to a display device, a control device, and a low-battery reminder method for the control device. Background Art

[0002] Display devices refer to terminal devices that can output specific display images, which can be terminal devices such as smart TVs, mobile terminals, smart advertising screens, projectors, etc. Taking smart TVs as an example, smart TVs are based on Internet application technology, have open operating systems and chips, have open application platforms, can realize two-way human-computer interaction functions, and are TV products that integrate multiple functions such as audio and video, entertainment, and data to meet the diverse and personalized needs of users.

[0003] The user sends a control instruction to the display device through the control device to instruct the display device to perform a corresponding function. For example, the control device is a remote control, and the user sends a control instruction to the display device by pressing a button on the remote control. The control instruction carries the key value of the button. When the display device receives the key value, it will execute the function corresponding to the key value. The control device sends the control instruction to the display device in the form of a pulse current. If the power of the control device is too low, the pulse current sent by the control device will be too low, thereby affecting the quality of the control instruction. The control instruction received by the display device is intermittent, or the control instruction cannot be received at all, so that the control instruction cannot be accurately responded to. This situation of the control device can be called low power.

[0004] The control device usually determines whether the control device is in a low power state based on the battery power or battery voltage. However, the gradual oxidation of the internal circuit of the control device during use will cause the control device to generate a pulse current with a lower current value at a non-low power battery power or battery voltage, and the pulse current will produce the same effect as the low power of the control device. However, at this time, based on the non-low power battery power or battery voltage, the control device will not be judged to be in a low power state, resulting in inaccurate low power judgment. The control device can also directly send the actual power value to the display device, and the display device determines whether the control device is in a low power state based on the power value. At this time, the display device needs to start a specific service to calculate whether the power value is lower than the power threshold to determine whether the control device is in a low power state. However, the judgment of whether the control device is in a low power state based on the actual power value is inaccurate, and the judgment process will also affect the original operation process of the display device. Summary of the invention

[0005] The present application provides a display device, a control device and a low-battery prompt method for the control device, wherein the control device determines whether the battery is low based on a pulse current value, and sends a specific key value to the display device when the battery is low, so as to directly instruct the display device to display a prompt message of the low battery of the control device, so as to improve the accuracy of judging the low battery and avoid the process of the display device displaying the prompt message affecting the original operation process.

[0006] In a first aspect, the present application provides a display device, wherein the display device communicates with a control device, including:

[0007] A display configured to display a low-battery reminder message of the control device;

[0008] The controller is configured as:

[0009] receiving a control instruction sent by a user, the control instruction comprising a first key value, the first key value corresponding to a key pressed by the user on the control device, wherein when the control device is in low power, the control instruction further comprises a second key value, the second key value being used to indicate that the control device is in low power;

[0010] In response to the control instruction, a function corresponding to the first key value is executed, wherein if the control instruction includes the second key value, low-battery prompt information of the control device is displayed.

[0011] In one implementation, the second key value corresponds to a pulse current of a specified current value generated by the control device, where the specified current value refers to a current value that is less than or equal to a preset current threshold.

[0012] In one implementation, the preset current threshold corresponds to a communication mode in which the control device currently communicates with the display device.

[0013] In one implementation, the controller is further configured to store a correspondence between the second key value and an instruction for displaying low-battery reminder information of the control device.

[0014] In one implementation, the controller is further configured to:

[0015] Receive the power-on command sent by the user;

[0016] Before responding to the first control instruction with the second key value, in response to the power-on instruction, a stored low-battery prompt indicator is obtained and deleted, wherein the low-battery prompt indicator is used to indicate that the controller has displayed low-battery prompt information of the control device.

[0017] In one implementation, if the control instruction includes the second key value, the controller displays low-battery reminder information of the control device, and is configured as follows:

[0018] Determining whether there is a stored low-battery reminder mark, wherein the low-battery reminder mark is used to indicate that the controller has displayed low-battery reminder information of the control device;

[0019] If the low-battery reminder mark is present, the low-battery reminder information of the control device is not displayed;

[0020] If the low-battery reminder mark does not exist, the low-battery reminder information of the control device is displayed, and the low-battery reminder mark is stored.

[0021] In a second aspect, the present application provides a control device, wherein the control device communicates with a display device, including:

[0022] A receiver, configured to receive a gesture operation sent by a user;

[0023] a controller configured to generate a pulse current corresponding to the first key value in response to the gesture operation;

[0024] Determining whether the current value of the pulse current is less than or equal to a preset current threshold;

[0025] If the current value is greater than the preset current threshold, sending the first key value to the display device;

[0026] If the current value is less than or equal to the preset current threshold, a second key value is generated, and the second key value is used to indicate that the control device is in low power. The first key value and the second key value are sent to the display device to indicate to the display device that the control device is in low power.

[0027] In one implementation, the controller determines whether the current value of the pulse current is less than or equal to a preset current threshold value by:

[0028] Acquire the current communication mode with the display device;

[0029] Acquire a preset current threshold corresponding to the communication mode;

[0030] It is determined whether the current value of the pulse current is less than or equal to the preset current threshold.

[0031] In a third aspect, the present application provides a low power prompt method for a control device, which is applied to a display device, wherein the display device communicates with the control device, and the method includes:

[0032] receiving a control instruction sent by a user, the control instruction comprising a first key value, the first key value corresponding to a key pressed by the user on the control device, wherein when the control device is in low power, the control instruction further comprises a second key value, the second key value being used to indicate that the control device is in low power;

[0033] In response to the control instruction, a function corresponding to the first key value is executed, wherein if the control instruction includes the second key value, low-battery prompt information of the control device is displayed.

[0034] In a fourth aspect, the present application provides a low power prompt method for a control device, which is applied to a control device, wherein the control device communicates with a display device, and the method includes:

[0035] Receiving a gesture operation sent by a user based on a key, the key corresponding to a first key value;

[0036] In response to the gesture operation, generating a pulse current corresponding to the first key value;

[0037] Determining whether the current value of the pulse current is less than or equal to a preset current threshold;

[0038] If the current value is greater than the preset current threshold, sending the first key value to the display device;

[0039] If the current value is less than or equal to the preset current threshold, a second key value is generated, and the second key value is used to indicate that the control device is in low power. The first key value and the second key value are sent to the display device to indicate to the display device that the control device is in low power.

[0040] It can be seen from the above technical solution that when the display device communicates with the control device, the control device receives the user's gesture operation based on the button, and generates a pulse current for sending the first key value corresponding to the button in response to the gesture operation. Before the control device sends the first key value to the display device, it determines whether the pulse current value of the pulse current is lower than the preset current threshold to determine whether it is in low power, and when it is determined to be in low power, it simultaneously sends the second key value to the display device to directly instruct the display device to display the prompt information that the control device is in low power through the second key value. Since the pulse current value directly affects the sending effect of the key value, it is possible to accurately determine whether the control device is in low power based on the pulse current value. At the same time, the control device directly instructs the display device to display the prompt information by sending the second key value to the display device, without the need for the display device to determine the low power through a specific service, so as to avoid the process of the display device displaying the prompt information affecting the original operation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0042] Figure 1 It is a usage scenario of the display device in the embodiment of the present application;

[0043] Figure 2 This is a hardware configuration block diagram of the control device in the embodiment of the present application;

[0044] Figure 3 This is a hardware configuration block diagram of the control device in the embodiment of the present application;

[0045] Figure 4 A hardware configuration diagram of a display device in an embodiment of the present application;

[0046] Figure 5 A software configuration diagram of a display device in an embodiment of the present application;

[0047] Figure 6 A schematic diagram of a process for a control device to determine low battery and instruct a display device to display low battery prompt information in an embodiment of the present application;

[0048] Figure 7 A schematic diagram of a flow chart for determining the current value of a pulse current based on a current communication mode in an embodiment of the present application;

[0049] Figure 8 A schematic diagram of a control device sending a control instruction to a display device in response to a user's gesture operation in an embodiment of the present application;

[0050] Fig. 9 It is a schematic diagram of a flow chart of a display device responding to a control instruction sent by a control device in an embodiment of the present application;

[0051] Fig.10 A flowchart of a method for limiting the display of low-battery reminder information in an embodiment of the present application;

[0052] Fig.11 A schematic diagram of a process for maintaining a stored low-battery reminder mark in an embodiment of the present application;

[0053] Fig.12 A schematic diagram of a display device responding to a control instruction sent by a control device in an embodiment of the present application;

[0054] Fig.13 Schematic diagram of a user interface with low battery prompt information in an embodiment of the present application. DETAILED DESCRIPTION

[0055] The following embodiments are described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following embodiments do not represent all implementations consistent with the present application. They are only examples of systems and methods consistent with some aspects of the present application as detailed in the claims.

[0056] It should be noted that the brief description of terms in this application is only for the convenience of understanding the embodiments described below, and is not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their common and usual meanings.

[0057] The terms "first", "second", "third", etc. in the specification and claims of this application and the above drawings are used to distinguish similar or similar objects or entities, and do not necessarily mean to limit a specific order or sequence, unless otherwise noted. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances.

[0058] The terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to all the components expressly listed but may include other components not expressly listed or inherent to such product or device.

[0059] The term "module" 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 functions associated with that element.

[0060] Figure 1 Schematic diagram of a usage scenario of a display device according to an embodiment. Figure 1 As shown, the display device 200 can communicate with the server 300 through the Internet, and the user can operate the display device 200 through the control device 100.

[0061] In some embodiments, the control device 100 may be a remote controller, and the communication between the remote controller and the display device includes infrared protocol communication and / or Bluetooth protocol communication, and at least one of other short-range communication methods, to control the display device 200 wirelessly or wired. The user may control the display device 200 by at least one input control command such as buttons on the remote controller, voice input, and control panel input.

[0062] In some embodiments, the control device 100 may also be a mobile terminal, such as a mobile phone, etc. The communication between the mobile terminal and the display device 200 includes Internet protocol communication or Bluetooth protocol communication, and at least one of other short-distance communication and long-distance communication methods. The user may input user commands by at least one of buttons, voice input, and control panel input on the mobile terminal to control the display device 200. Figure 2 1 shows a block diagram of a configuration of a control device 100 taking a remote controller as an example. Figure 2 As shown, the control device 100 includes a controller, a communication interface, a user input / output interface, a memory, and a power supply.

[0063] Figure 3 1 shows a block diagram of a configuration of a control device 100 taking a mobile terminal as an example. Figure 3 As shown, the control device 100 includes at least one of a radio frequency (RF) circuit, a memory, a display unit, a camera, a sensor, an audio circuit, a wireless fidelity (Wi-Fi) circuit, a processor, a Bluetooth circuit, and a power supply.

[0064] Figure 4 A hardware configuration block diagram of a display device 200 according to an exemplary embodiment is shown.

[0065] In some embodiments, the display apparatus 200 includes at least one of a tuner 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.

[0066] In some embodiments, the communicator 220 is a component for communicating with an external device or server according to various communication protocol types. For example, the communicator may include at least one of a Wi-Fi module, a Bluetooth module, a wired Ethernet module, or other network communication protocol chips or near field communication protocol chips, and an infrared receiver. The display device 200 may establish transmission and reception of control signals and data signals with the control device 100 or the server 300 through the communicator 220.

[0067] In some embodiments, the external device interface 240 may include, but is not limited to, any one or more of the following: a high-definition multimedia interface (HDMI), an analog or digital high-definition component input interface (component), a composite video input interface (CVBS), a USB input interface (USB), an RGB port, etc. It may also be a composite input / output interface formed by the above multiple interfaces.

[0068] 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 located in an external device of the main device where the controller 250 is located, such as an external set-top box.

[0069] 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 the memory. The controller 250 controls the overall operation of the display 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.

[0070] In some embodiments, the user may input a user command in a graphical user interface (GUI) displayed on the display 260, and the user input interface receives the user input command through the graphical user interface (GUI). Alternatively, the user may input a 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 a sensor.

[0071] In some embodiments, "user interface" is a medium interface for interaction and information exchange between an application or operating system and a user, which realizes the conversion between the internal form of information and the form acceptable to the user. A common form of user interface is a graphical user interface (GUI), which refers to a user interface related to computer operation displayed in a graphical manner. It can be an interface element such as an icon, window, or control displayed on a display screen of an electronic device, wherein a control may include at least one of icons, buttons, menus, tabs, text boxes, dialog boxes, status bars, navigation bars, widgets, and other visual interface elements.

[0072] See also Figure 5 In some embodiments, the system is divided into four layers, from top to bottom, namely, the application layer (Applications) layer (referred to as "application layer"), the application framework layer (Application Framework) layer (referred to as "framework layer"), the Android runtime (Android runtime) and system library layer (referred to as "system runtime library layer"), and the kernel layer.

[0073] In some embodiments, at least one application is running in the application layer, and these applications can be window programs, system settings programs, clock programs, etc. provided by the operating system, or applications developed by third-party developers. In specific implementations, the application packages in the application layer are not limited to the above examples.

[0074] The framework layer provides application programming interfaces (APIs) and programming frameworks for applications in the application layer. The application framework layer includes some predefined functions. The application framework layer is equivalent to a processing center that determines the actions that applications in the application layer take. Through the API interface, applications can access system resources and obtain system services during execution.

[0075] like Figure 5 As shown, in the embodiment of the present application, the application framework layer includes managers, content providers, etc., wherein the manager includes at least one of the following modules: an activity manager (ActivityManager) is used to interact with all activities running in the system; a location manager (Location Manager) is used to provide system services or applications with access to system location services; a package manager (Package Manager) is used to retrieve various information related to the application package currently installed on the device; a notification manager (NotificationManager) is used to control the display and clearing of notification messages; a window manager (Window Manager) is used to manage icons, windows, toolbars, wallpapers, and desktop components on the user interface.

[0076] The user sends a control instruction to the display device 200 through the control device 100 to control the display device 200 to achieve the corresponding function. In the application embodiment, the control device 100 is an independent device, which provides power for its normal operation through self-powering, that is, battery power. When the control device 100 communicates with the display device 200, the control device 100 provides power through its own power supply module, such as a battery, and converts the power provided by the power supply module into a pulse current to send a control instruction to the display device 200 in the form of sending a pulse current to the display device 200. It can be seen that the power supply module of the control device 100 can provide The power will affect the quality of the pulse current sent by the control device 100, that is, the lower the power that the power supply module of the control device 100 can provide, the lower the current value of the pulse current sent by the control device 100 will be, and the higher the power that the power supply module of the control device 100 can provide, the higher the current value of the pulse current sent by the control device 100 will be. The electric energy that the power supply module of the control device 100 can provide is usually indicated by the electric quantity, that is, the higher the electric energy that the power supply module can provide, the higher the corresponding electric quantity, and the lower the electric energy that the power supply module can provide, the lower the corresponding electric quantity. Therefore, the higher the electric quantity of the control device 100, the higher the quality of the pulse current that can be sent, and the lower the electric quantity of the control device 100, the lower the quality of the pulse current that can be sent. When the electric quantity of the control device 100 is lower than a certain electric quantity value, that is, when the control device 100 is at a low electric quantity, the quality of the pulse current that it can send will be lower than the limit, that is, the pulse current will not have enough electric energy to be transmitted to the display device 200, so that the display device 200 cannot receive the control instruction, or the electric energy provided by the control device 100 is uneven, so that the electric energy of the pulse current in some segments is low, so that the pulse current in some segments cannot be transmitted to the display device 200, so that the control instruction received by the display device 200 is intermittent, so that the received control instruction is incomplete.

[0077] It can be seen that once the control device 100 is at low power, the transmission quality of the control command will be seriously affected, so that the display device 200 cannot receive the control command, or cannot receive the complete control command, which affects the accurate response of the display device 200 to the control command, thereby affecting the user's control of the display device 200 and reducing the user's experience. In order to solve this problem, when the control device 100 is at low power, it is necessary to prompt the user in time so that the user can replace the battery of the control device 100 as soon as possible, or charge the control device 100.

[0078] From the above, it can be seen that accurately determining whether the control device 100 is in low battery and displaying the low battery prompt information as soon as possible are the keys to prevent the low battery of the control device 100 from reducing the user experience. Figure 6A schematic diagram of a process of a control device 100 determining low power and controlling a display device 200 to display low power prompt information provided in an embodiment of the present application is as follows:

[0079] S601: Receive a gesture operation sent by a user based on a key, where the key corresponds to a first key value.

[0080] When the user has a control demand for the display device 200, the control device 100 sends a control instruction to the display device 200. The user performs a corresponding gesture operation on the buttons on the control device 100 to input a control instruction to the control device 100.

[0081] In this embodiment, the button refers to any button other than the power button and the standby button on the control device 100. The button types are different for different types of control devices 100. For example, if the control device 100 is a remote controller, the button refers to a physical button on the remote controller. For another example, if the control device 100 is an external control device such as a game controller, and if the game controller is controlled via a touch screen, the button refers to a virtual button displayed on the touch screen.

[0082] In this embodiment, the gesture operation refers to operations such as pressing, clicking, and sliding a button. For example, a physical button is pressed, and a virtual button is clicked and slid.

[0083] In this embodiment, each key has a corresponding key value, and the key value can be defined as a first key value. The first key value has a corresponding relationship with the function corresponding to the corresponding key, that is, the first key value is used to instruct the display device 200 to perform the corresponding function. Take the remote control as an example for explanation, the key "1" on the remote control corresponds to the first key value "1", and the corresponding function is "display channel 1". Therefore, the first key value "1" has a corresponding relationship with the function "display channel 1". When the display device 200 receives the first key value "1", it will respond to the first key value and display channel 1.

[0084] In some embodiments, the user can send a voice command to the display device 200 based on the control device 100. In these embodiments, the voice command is equivalent to the control command, and the voice information is equivalent to the key value, wherein the voice information can be any command other than "power off" and "standby", and each voice information is used to instruct the display device 200 to perform a corresponding function. Take the remote control as an example for explanation. The remote control has a microphone, and the user inputs the voice information "channel 1" through the microphone. The voice information "channel 1" has a corresponding relationship with the function "display channel 1". When the display device 200 receives the voice information "channel 1", it will respond to the voice information and display channel 1.

[0085] S602: In response to the gesture operation, generate a pulse current corresponding to the first key value.

[0086] As can be seen from the above, the control device 100 sends the key value to the display device 200 in the form of a pulse current. When the control device 100 receives a gesture operation from the user, it will generate a pulse current corresponding to the first key value, and send the first key value to the display device 200 by sending the generated pulse current to the display device 200.

[0087] S603: Determine whether the current value of the pulse current is less than or equal to a preset current threshold.

[0088] As can be seen from the above, the power of the control device 100 will affect the quality of the pulse current transmission, so when the control device 100 is in low power, it is necessary to prompt the user in time. In order to improve the effectiveness of the prompt, in this embodiment, the operation of the user actively sending a control instruction to the display device 200 through the control device 100 is used as a trigger node, that is, the control device 100 receives the user's gesture operation as a trigger node, starts the power judgment of the control device 100, and when it is determined that the control device 100 is in low power, the prompt information of the low power of the control device 100 is displayed on the display device 200. Based on this, before the control device 100 sends the first key value to the display device 200, it first judges whether the battery is low. When it is determined to be low battery, the indication information for instructing the display device 200 to display the prompt information of the low battery of the control device 100 is sent to the display device 200 together with the first key value, so that the display device 200 can display the indication information of the prompt information of the low battery of the control device 100 when responding to the first key value. At this time, since the user's attention is focused on the display device 200, the probability of the prompt information being noticed by the user can be effectively increased.

[0089] In this embodiment, the current value of the pulse current is used as a basis for judging whether the control device 100 is in a low power state. Based on the above description of the relationship between the electric energy, power, and pulse current transmission quality that can be provided by the power supply module of the control device 100, it can be known that the power (voltage) of the power supply module and the like will affect the transmission quality of the pulse current, and the transmission quality of the pulse current can be characterized by the current value of the pulse current, that is, when the current value of the pulse current is less than or equal to the preset current threshold, the transmission quality of the pulse current cannot be guaranteed, and the display device 200 will not be able to receive the pulse current, or will receive intermittent pulse current. When the current value of the pulse current is greater than the preset current threshold, the transmission quality of the pulse current can be guaranteed, and the display device 200 can receive the complete pulse current, that is, the complete control instruction.

[0090] Under ideal conditions, the power and voltage of the control device 100 can accurately correspond to the standard value of the current value of the pulse current. However, in actual applications, as the control device 100 is used, oxidation may occur in its internal circuit, which will cause the power provided by the power supply module to be unable to be completely converted into a pulse current, that is, the current value of the pulse current finally generated by the control device 100 will be lower than the standard value. Based on this, if the power or voltage of the control device 100 is used as a basis for judging low power, for example, when the power is lower than a preset power threshold, or the voltage is lower than a preset voltage threshold, the control device 100 is judged to be at low power, then the following situation will occur: even if the current power of the control device 100 is greater than the preset power threshold, or the current voltage is greater than the preset voltage threshold, but affected by the oxidation circuit, the current value of the pulse current generated by the control device 100 will be lower than the standard value, if the actual current value of the generated pulse current is less than or equal to the preset current threshold, the quality of the pulse current transmission cannot be guaranteed, thereby producing the same effect as the low power of the control device 100, but at this time, based on the judgment basis of power and voltage, it is still judged that the control device 100 is not at low power. Obviously, compared with the power and voltage of the control device 100, the current value of the pulse current is a parameter that more directly reflects the transmission quality of the pulse current. Therefore, it is not accurate to use the power or voltage of the control device 100 as the basis for judging low power. Using the current value of the pulse current as the basis for judging low power of the control device 100 can effectively improve the accuracy of the judgment.

[0091] Based on the different communication modes between the control device 100 and the display device 200, the current values ​​required for the control device 100 to send the pulse current to the display device 200 are different, that is, there is a corresponding relationship between the communication mode and the preset current threshold of the pulse current. For example, when the communication mode between the control device 100 and the display device 200 is the Bluetooth mode, the preset current threshold corresponding to the Bluetooth mode is 80mA; when the communication mode between the control device 100 and the display device 200 is the infrared mode, the preset current threshold corresponding to the infrared mode is 40mA.

[0092] Based on this, the transmission quality of the pulse current can be guaranteed only when the current value of the pulse current generated by the control device 100 is greater than the corresponding preset current threshold. Figure 7 A flowchart for determining the current value of a pulse current based on the current communication mode provided in an embodiment of the present application is as follows:

[0093] S701: Acquire a current communication mode with the display device.

[0094] S702: Obtain a preset current threshold corresponding to the communication mode.

[0095] S703: Determine whether the current value of the pulse current is less than or equal to the preset current threshold.

[0096] After the control device 100 receives the gesture operation sent by the user, it obtains the currently used communication mode. In this embodiment, the control device 100 may have at least one optional communication mode, for example, the optional communication mode of the control device 100 may include infrared mode, Bluetooth mode, etc. The control device 100 can obtain the recorded communication mode from the memory. For example, if the record in the memory is "Bluetooth mode", it is determined that the communication mode currently used with the display device 200 is Bluetooth mode. In this embodiment, the control device 100 pre-stores the correspondence between the communication mode and the preset current threshold in the memory, for example, "infrared mode-40mA" and "Bluetooth mode-80mA" are stored. Based on the pre-stored correspondence, the control device 100 can determine the preset current threshold corresponding to the currently used communication mode. For example, if the currently used communication mode is Bluetooth mode, the preset current threshold is 80mA. Then 80mA is used as a specific judgment basis for judging whether the current value of the pulse current corresponds to low power.

[0097] S604: If the current value is greater than the preset current threshold, send the first key value to the display device.

[0098] If the current value of the pulse current generated by the control device 100 is greater than the preset current threshold, it means that the control device 100 is not in low power, that is, the quality of the pulse current transmission can be guaranteed. At this time, the display device 200 does not need to display the prompt information of the low power of the control device 100. Therefore, the control device 100 only needs to send the first key value to the display device 200 normally, so that the display device 200 responds to the first key value and executes the corresponding function.

[0099] S605. If the current value is less than or equal to the preset current threshold, generate a second key value, wherein the second key value is used to indicate that the control device is in low power, and send the first key value and the second key value to the display device to indicate to the display device that the control device is in low power.

[0100] If the current value of the pulse current generated by the control device 100 is less than or equal to the preset current threshold, it means that the control device 100 is currently low on power, that is, the quality of sending the pulse current cannot be guaranteed. At this time, the display device 200 needs to display a prompt message that the control device 100 is low on power.

[0101] In this embodiment, in order to avoid the display device 200 from executing the judgment process of whether the control device 100 is in a low power state, the control device 100 directly instructs the display device 200 to display a low power prompt message. Based on the judgment result that the current value is less than or equal to the preset current threshold, the control device 100 generates a specific key value, i.e., a second key value, which is specifically used to identify that the control device 100 is in a low power state. In this embodiment, the second key value can be a key value or a combination of multiple key values, for example, the second key value is a key value "low", or the second key value is a combination of multiple key values ​​"2", "4", "7", and "5".

[0102] In this embodiment, the memory of the control device 100 may pre-store a correspondence between the second key value and the judgment result that the current value of the pulse current is less than or equal to the preset current threshold. Based on this correspondence, when the control device 100 determines that the current value is less than or equal to the preset current threshold, the second key value can be directly obtained.

[0103] In some embodiments, the memory of the control device 100 may pre-store the correspondence between the communication mode, the preset current threshold, and the second key value. For example, "infrared mode-<40mA-second key value", "Bluetooth mode-<80mA-second key value". Based on the above correspondence, the control device 100 only needs to interact with the memory once to obtain all the correspondences in the process of determining the preset current threshold based on the currently used communication mode, and in the process of generating the second key value based on the determination result of the current value of the generated pulse current and the preset current threshold. Therefore, the efficiency of the control device 100 in generating the second key value can be improved by reducing the number of interactions with the memory to obtain the correspondence, thereby improving the efficiency of the control device 100 in sending control instructions to the display device 200, so as to shorten the time required for the display device 200 to receive the control instruction, avoid affecting the response speed of the display device 200, and ensure the user experience.

[0104] It should be noted that, in this embodiment, when the control device 100 determines that the battery is low, the control device 100 sends the second key value and the first key value to the display device 200 at the same time. As can be seen from the above description, the control device 100 can directly inform the display device 200 that the control device 100 is low in power by sending the second key value to the display device 200, so as to instruct the display device 200 to display a prompt message indicating that the control device 100 is low in power. At the same time, the control device 100 can still send the first key value to the display device 200 to instruct the display device 200 to execute the function corresponding to the first key value. In this way, once the display device 200 recognizes the first key value, it can respond to the first key value and execute the function corresponding to the first key value to maximize the display device 200 to respond to the user's needs normally.

[0105] Based on the above-mentioned workflow of the control device 100 in response to the user's gesture operation, an example is provided, such as Figure 8 As shown, the details are as follows:

[0106] The control device 100 is a remote controller, which is currently connected to the display device 200. The user performs gesture operations on the remote controller, such as Figure 8 As shown, press the button "1". The remote control receives the user's gesture operation, and in response to the gesture operation, generates a pulse current corresponding to the first key value "1", and obtains the current value of the pulse current, such as 75mA. The remote control identifies the current communication mode between the display device 200, such as Bluetooth mode, and obtains the corresponding relationship between the communication mode and the preset current threshold from the memory, such as "Bluetooth mode-80mA". Based on the corresponding relationship, the remote control determines the preset current threshold 80mA corresponding to the Bluetooth mode. The remote control determines whether it is in low power based on the preset current threshold 80mA and the current value 75mA of the pulse current. Among them, 75mA<80mA, that is, the current value of the pulse current is less than the preset current threshold, then the remote control is determined to be in low power. If the current value of the pulse current is greater than the preset current threshold, the remote control is not in low power. Based on the above determination result, the remote control obtains the corresponding relationship between the determination result and the second key value from the memory, such as "the current value of the pulse current is less than or equal to the preset current threshold-the second key value 'low'". Further, based on the above correspondence, the remote control determines that the second key value is "low". The remote controller sends a first key value "1" and a second key value "low" to the display device 200 to instruct the display device 200 to display channel 1, and at the same time, instructs the display device 200 to display a low-battery prompt message of the control device 100, such as "remote controller battery is low".

[0107] It can be seen that using the current value of the pulse current as the basis for judging whether the battery is low in power makes the judgment more accurate. In addition, the judgment process of whether the control device 100 is low in power is concentrated inside the control device 100. The control device 100 can directly instruct the display device 200 to display a low power prompt message by sending a second key value to the display device 200, thereby avoiding affecting the operation process of the display device 200 itself.

[0108] After receiving the control instruction sent by the user through the control device 100, the display device 200 Fig. 9 The process shown executes the function corresponding to the key value carried by the control instruction, as follows:

[0109] S901. Receive a control instruction sent by a user, wherein the control instruction includes a first key value, and the first key value corresponds to a key pressed by the user on the control device, wherein when the control device is in low power, the control instruction also includes a second key value, and the second key value is used to indicate that the control device is in low power.

[0110] After receiving the control instruction sent by the user, the display device 200 identifies the key value carried in the control instruction, and determines whether the identified key value includes the second key value. In this embodiment, the second key value is pre-stored in the memory of the display device 200. The display device 200 compares each identified key value with the pre-stored second key value to determine whether the second key value exists in the identified key value. Among them, the key value consistent with the pre-stored second key value is the second key value, and the key value different from the pre-stored second key value is the first key value.

[0111] S902: In response to the control instruction, execute a function corresponding to the first key value, wherein if the control instruction includes the second key value, display a low-battery reminder message of the control device.

[0112] The display device 200 executes the function corresponding to the identified key value. In one case, if the control instruction carries only the first key value, it means that the control device 100 is not currently in low power, and the display device 200 only needs to respond to the first key value and execute the function corresponding to the first key value. For example, the first key value is "1", and the display device 200 displays channel 1 in response to the first key value. In another case, if the control instruction carries not only the first key value but also the second key value, it means that the control device 100 is currently in low power, and the display device 200 not only needs to respond to the first key value and execute the function corresponding to the first key value, but also needs to respond to the second key value to display the prompt information of the low power of the control device 100. For example, the first key value is "1", the second key value is "low", the display device 200 responds to the first key value, displays channel 1, and at the same time, the display device 200 also responds to the second key value to display "the remote control battery is low".

[0113] The display device 200 pre-stores a correspondence between the second key value and the instruction of the low-battery prompt information of the display control device 100. When the display device 200 recognizes the second key value, the instruction of the low-battery prompt information of the display control device 100 can be obtained based on the correspondence, and further responds to the instruction to display the low-battery prompt information. It can be seen that if the display device 200 needs to perform the above process to display the low-battery prompt information every time it receives a control instruction with the second key value, it will not only occupy the computing resources of the display device 200 and affect the response efficiency of the display device 200 to the first key value, but also the display device 200 frequently displays the low-battery prompt information, which will affect the user's experience.

[0114] In order to solve the above problem, in this embodiment, a method for limiting the display of low-battery prompt information is provided. Fig.10 The process shown is as follows:

[0115] S1001. Determine whether there is a stored low-battery reminder mark, where the low-battery reminder mark is used to indicate that the controller has displayed low-battery reminder information of the control device.

[0116] In this embodiment, each startup operation of the display device 200 is regarded as a judgment unit. In order to limit the number of times the display device 200 displays the low-battery prompt information, the display device 200 is configured to display the low-battery prompt information of the control device 100 only when the second key value is recognized for the first time in each judgment unit. In this embodiment, after the display device 200 displays the low-battery prompt information of the control device 100 for the first time, the low-battery prompt mark is stored in the memory to record that the low-battery prompt information has been displayed. The display device 200 can determine whether the low-battery prompt information of the control device 100 has been displayed by identifying whether there is a low-battery prompt mark in the memory.

[0117] In this embodiment, the startup operation of the display device 200 may refer to powering on the display device 200 after it is powered off, or may refer to re-operation of the display device 200 after it is in standby mode. Fig.11 The process shown maintains the stored low-battery reminder mark as follows:

[0118] S1101. Receive a power-on instruction sent by a user.

[0119] S1102. Before responding to the first control instruction with the second key value, in response to the power-on instruction, obtain and delete the stored low-battery prompt mark, wherein the low-battery prompt mark is used to indicate that the controller has displayed the low-battery prompt information of the control device.

[0120] The user sends a power-on command to the display device 200 by pressing the standby key on the control device 100, so as to instruct the display device 200 in the standby state to restart. Alternatively, the user sends a power-on command to the display device 200 by pressing the power key on the control device 100, so as to instruct the display device 200 in the power-off state to power on. Alternatively, the user directly sends a power-on command to the display device 200 by pressing the power button on the display device 200, so as to instruct the display device 200 in the power-off state to power on.

[0121] If the display device 200 has displayed the low-battery reminder information of the control device 100 during the last startup and operation process, a low-battery reminder mark will be stored in the memory. After the display device 200 enters the current startup and operation process, even if the control instruction with the second key value is received for the first time, based on the low-battery reminder mark generated during the last startup and operation process stored in the memory, it will be determined that there is a low-battery reminder mark that has been stored, and thus it will be determined that the low-battery reminder information of the control device 100 has been displayed, and then the low-battery reminder information will not be displayed during the current startup and operation process, and thus the effect of reminding the user cannot be achieved.

[0122] In order to prevent the low-battery reminder mark that has been stored when the display device 200 was last powered on from affecting the process of displaying the low-battery reminder information during the current power-on operation, it is necessary to delete the stored low-battery reminder mark. It should be noted that the process of the display device 200 deleting the low-battery reminder mark that has been stored when the display device 200 was last powered on must be completed before executing the second key value received for the first time in response.

[0123] In one implementation, the display device 200 can immediately obtain the low-battery warning mark stored in the memory after being turned on. In this way, it can be ensured that the display device 200 completes the deletion of the low-battery warning mark before responding to the first receipt of the second key value, so that the process of the display device 200 responding to the first receipt of the second key value will not be affected by the low-battery warning mark stored in the last startup operation, and the low-battery warning information of the control device 100 can be normally displayed during the current startup operation.

[0124] In one implementation, the display device 200 can respond to the control instruction when the user sends the control instruction through the control device 100 for the first time, and give priority to the task of deleting the low-power prompt mark, and after deleting the low-power prompt mark, execute the task indicated by the control instruction itself. In this implementation, if the control instruction received by the display device 200 for the first time is the control instruction with the second key value, the display device 200 responds to the control instruction, gives priority to the task of deleting the low-power prompt mark, and after deleting the power prompt mark, executes the task corresponding to the second key value. The above-mentioned task execution order in response to the control instruction can effectively avoid the influence of the low-power prompt mark stored in the last operation process that was not deleted in time when executing the task corresponding to the second key value. At this time, the display device 200 receives the control instruction with the second key value for the first time. When judging whether there is a low-power prompt mark that has been stored, since the low-power prompt mark stored during the last boot operation has been deleted, the judgment result is that there is no low-power prompt mark that has been stored. In this implementation, if the control instruction received by the display device 200 for the first time is a control instruction without a second key value, then in the process of responding to the control instruction this time, the task of deleting the low-battery prompt mark stored in the previous operation process is completed. Therefore, before the display device 200 subsequently receives a control instruction with the second key value, the low-battery prompt mark stored in the previous operation process no longer exists, and will not affect the response process to the second key value.

[0125] In one implementation, when the display device 200 receives a control instruction with a second key value for the first time, it can respond to the control instruction, give priority to executing the task of deleting the low-battery reminder mark, and after deleting the battery reminder mark, execute the task corresponding to the second key value. The above-mentioned task execution order in response to the control instruction can effectively avoid the influence of the low-battery reminder mark stored in the previous operation process that was not deleted in time when executing the task corresponding to the second key value. Specifically, the display device 200 uses the current startup operation process as a statistical unit, and counts the number of times the second key value is received from 0. Each time a control instruction with the second key value is received, 1 is accumulated to the number of times the second key value is currently received. Therefore, when the display device 200 recognizes that the number of times the second key value is currently received is 1, it is determined that the control instruction with the second key value is received for the first time. At this time, according to the above-mentioned task execution order, the task of deleting the low-battery reminder mark is executed.

[0126] S1002: If the low-battery reminder mark exists, the low-battery reminder information of the control device is not displayed.

[0127] If the display device 200 recognizes that there is a low-battery reminder mark in the memory, it means that the display device 200 has already displayed the low-battery reminder information in the current judgment unit, and there is no need to display it again. Based on this, the display device 200 will not respond to the second key value and will not display the low-battery reminder information of the control device 100 to avoid repeated reminders. At this time, the display device 200 only needs to respond to the first key value and execute the function corresponding to the first key value.

[0128] S1003: If the low-battery reminder mark does not exist, display the low-battery reminder information of the control device, and store the low-battery reminder mark.

[0129] If the display device 200 does not recognize the low-battery reminder mark in the memory, it means that the display device 200 has not displayed the low-battery reminder information in the current judgment unit, and needs to display the low-battery reminder information to remind the user. Based on this, the display device 200 will respond to the second key value to display the low-battery reminder information of the control device 100, and respond to the first key value to execute the function corresponding to the first key value.

[0130] Based on the above display device 200 responding to the control instruction sent by the control device 100, an example is provided, such as Fig.12 As shown, the details are as follows:

[0131] The control device 100 takes a remote control as an example, and the display device 200 communicates with the remote control. The user presses the power button on the remote control to send a power-on command to the display device 200. After receiving the power-on command, the display device 200 enters the current power-on operation process. After the display device 200 enters the current power-on operation process, the low-battery prompt mark that has been stored is obtained from the memory (the low-battery prompt mark stored in the last power-on operation process), and the obtained low-battery prompt mark is deleted. At this time, the low-battery prompt mark will not exist in the memory.

[0132] like Figure 8 As shown, the remote control sends a control instruction to the display device 200, and the control instruction includes a first key value "1" and a second key value "low". The display device 200 identifies the second key value "low" from the control instruction based on the pre-stored second key value information. The display device 200 first determines whether there is a low-battery prompt mark in the memory. If there is no low-battery prompt mark, it means that the display device 200 has not displayed the low-battery prompt information of the control device 100 during the current startup and operation process. The display device 200 responds to the second key value "low" to display the low-battery prompt information, such as "the remote control battery is low", and responds to the first key value "1" to display channel 1, such as Fig.13As shown, after displaying the low-battery prompt information, the low-battery prompt mark is stored in the memory. When the display device 200 receives the control instruction with the second key value again, based on the determination result that the low-battery prompt mark already exists, the low-battery prompt information will not be repeatedly displayed. If the low-battery prompt mark currently exists, it means that the display device 200 has already displayed the low-battery prompt information of the control device 100, and the display device 200 will no longer display the low-battery prompt information to avoid repeated prompts.

[0133] It can be seen from the above technical solution that when the display device 200 communicates with the control device 100, the control device 100 receives the user's gesture operation based on the button, and generates a pulse current for sending the first key value corresponding to the button in response to the gesture operation. Before the control device 100 sends the first key value to the display device 200, it determines whether the pulse current value of the pulse current is lower than the preset current threshold value to determine whether it is in low power, and when it is determined to be in low power, it simultaneously sends the second key value to the display device 200, so as to directly instruct the display device 200 to display the prompt information that the control device is in low power through the second key value. Since the pulse current value directly affects the sending effect of the key value, it is possible to accurately determine whether the control device 100 is in low power based on the pulse current value. At the same time, the control device 100 directly instructs the display device 200 to display the prompt information by sending the second key value to the display device 200, without the display device 200 judging the low power through a specific service, so as to avoid the process of the display device 200 displaying the prompt information affecting the original operation process.

[0134] Similar parts between the embodiments provided in this application can be referenced to each other. The specific implementation methods provided above are only a few examples under the general concept of this application and do not constitute a limitation on the protection scope of this application. For those skilled in the art, any other implementation methods expanded based on the scheme of this application without creative work belong to the protection scope of this application.

Claims

1. A display device, characterized in that: The display device communicates with the control device, including: A display configured to display a low-battery reminder message of the control device; The controller is configured as: Receive a control instruction sent by a user, the control instruction including a first key value, the first key value corresponding to a key pressed by the user on the control device, wherein when the control device is in low power, the control instruction also includes a second key value, the second key value is used to indicate that the control device is in low power, the control device being in low power means that a pulse current generated in response to a gesture operation of the user based on the first key has a specified current value, and the specified current value is less than or equal to a preset current threshold; the pulse current is obtained by converting the electric energy provided by the power supply module of the control device through an internal circuit; In response to the control instruction, a function corresponding to the first key value is executed, wherein if the control instruction includes the second key value, low-battery prompt information of the control device is displayed.

2. The display device according to claim 1, characterized in that The preset current threshold corresponds to a communication mode in which the control device currently communicates with the display device.

3. The display device according to claim 1, characterized in that The controller is further configured to store a correspondence between the second key value and an instruction for displaying low-battery reminder information of the control device.

4. The display device according to claim 1, characterized in that The controller is also configured to: Receive the power-on command sent by the user; Before responding to the first control instruction with the second key value, in response to the power-on instruction, a stored low-battery prompt indicator is obtained and deleted, wherein the low-battery prompt indicator is used to indicate that the controller has displayed low-battery prompt information of the control device.

5. The display device according to claim 1, characterized in that If the control instruction includes the second key value, the controller displays low-battery reminder information of the control device, and is configured as follows: Determining whether there is a stored low-battery reminder mark, wherein the low-battery reminder mark is used to indicate that the controller has displayed low-battery reminder information of the control device; If the low-battery reminder mark is present, the low-battery reminder information of the control device is not displayed; If the low-battery reminder mark does not exist, the low-battery reminder information of the control device is displayed, and the low-battery reminder mark is stored.

6. A control device, characterized in that: The control device communicates with the display device, including: A receiver, configured to receive a gesture operation sent by a user based on a key, wherein the key corresponds to a first key value; A controller is configured to generate a pulse current corresponding to the first key value in response to the gesture operation; the pulse current is obtained by converting the electric energy provided by the power supply module through an internal circuit; Determining whether the current value of the pulse current is less than or equal to a preset current threshold; If the current value is greater than the preset current threshold, sending the first key value to the display device; If the current value is less than or equal to the preset current threshold, a second key value is generated, and the second key value is used to indicate that the control device is in low power. The first key value and the second key value are sent to the display device to indicate to the display device that the control device is in low power.

7. The control device according to claim 6, characterized in that: The controller determines whether the current value of the pulse current is less than or equal to a preset current threshold value by: Acquire the current communication mode with the display device; Acquire a preset current threshold corresponding to the communication mode; It is determined whether the current value of the pulse current is less than or equal to the preset current threshold.

8. A low battery reminder method for a control device, characterized in that: Applied to a display device, the display device communicates with a control device, the method comprising: Receive a control instruction sent by a user, the control instruction including a first key value, the first key value corresponding to a key pressed by the user on the control device, wherein when the control device is in low power, the control instruction also includes a second key value, the second key value is used to indicate that the control device is in low power, the control device being in low power means that a pulse current generated in response to a user gesture operation based on the first key has a specified current value, and the specified current value is less than or equal to a preset current threshold; the pulse current is obtained by converting the electric energy provided by the power supply module of the control device through an internal circuit; In response to the control instruction, a function corresponding to the first key value is executed, wherein if the control instruction includes the second key value, low-battery prompt information of the control device is displayed.

9. A low battery reminder method for a control device, characterized in that: Applied to a control device, the control device communicates with a display device, the method comprising: Receiving a gesture operation sent by a user based on a key, the key corresponding to a first key value; In response to the gesture operation, a pulse current corresponding to the first key value is generated; the pulse current is obtained by converting the electric energy provided by the power supply module of the control device through an internal circuit; Determining whether the current value of the pulse current is less than or equal to a preset current threshold; If the current value is greater than the preset current threshold, sending the first key value to the display device; If the current value is less than or equal to the preset current threshold, a second key value is generated, and the second key value is used to indicate that the control device is in low power. The first key value and the second key value are sent to the display device to indicate to the display device that the control device is in low power.

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