CN114281291A

CN114281291A - Display device, control device and low-power prompting method of control device

Info

Publication number: CN114281291A
Application number: CN202111622552.2A
Authority: CN
Inventors: 邵肖明; 卢炳岐
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-04-05

Abstract

When the display device is communicated with the control device, the control device receives gesture operation of a user based on a key and responds to the gesture operation to generate pulse current for sending a first key value corresponding to the key. Before the control device sends the first key value to the display equipment, whether the current value of the pulse current is lower than a preset current threshold value is judged to judge whether the pulse current is in a low power state, and when the pulse current is judged to be in the low power state, a second key value is sent to the display equipment at the same time, so that the display equipment is directly indicated to display prompt information that the control device is in the low power state through the second key value. Whether the control device is in the low-power state or not can be accurately judged based on the current value of the pulse current, meanwhile, the control device directly indicates the display equipment to display prompt information through the second key value, low-power judgment of the display equipment is not needed, and therefore the original operation process of the display equipment is prevented from being influenced.

Description

Display device, control device and low-power prompting method of control device

Technical Field

The application relates to the technical field of intelligent display equipment, in particular to display equipment, a control device and a low-power prompting method of the control device.

Background

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

For example, the control device is a remote controller, the user sends a control instruction to the display device by pressing a key on the remote controller, the control instruction carries a key value of the key, and when receiving the key value, the display device executes a function corresponding to the key value. The control device sends a control instruction to the display device in a pulse current mode, if the electric quantity of the control device is too low, the pulse current sent by the control device is too low, so that the sending quality of the control instruction is influenced, 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 responded accurately, and the condition of the control device can be called as low electric quantity.

The control device usually determines whether the control device is in low power based on the battery power or the battery voltage, however, gradual oxidation of the internal circuit of the control device in the using process may cause the control device to generate a pulse current with a lower current value under the battery power or the battery voltage which is not in low power, and the pulse current may generate the same effect as the low power of the control device, but at this time, based on the battery power or the battery voltage which is not in low power, it may not be determined that the control device is in low power, resulting in inaccurate low power determination. Or the control device may directly send the electric quantity value of the actual electric quantity to the display device, and the display device determines whether the control device is in the low electric quantity based on the electric quantity value, at this time, the display device needs to start a specific service to calculate whether the electric quantity value is lower than the electric quantity threshold value so as to determine whether the control device is in the low electric quantity. However, the judgment of whether the control device is in the low power state based on the power value of the actual power is not accurate, and the original operation process of the display device is also affected by the judgment process.

Disclosure of Invention

The application provides a display device, a control device and a low-power prompting method of the control device.

In a first aspect, the present application provides a display device, the display device in communication with a control apparatus, comprising:

a display configured to display a low battery notification message of the control apparatus;

a controller configured to:

receiving a control instruction sent by a user, wherein the control instruction comprises a first key value, the first key value corresponds to a key acted on the control device by the user, and when the control device is in a low power state, the control instruction further comprises a second key value, and the second key value is used for indicating that the control device is in the low power state;

and responding to the control instruction, executing a function corresponding to the first key value, wherein if the control instruction comprises the second key value, displaying low-power prompt information of the control device.

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 is a current value smaller than or equal to a preset current threshold.

In one implementation, the preset current threshold corresponds to a communication mode in which the control apparatus is currently in communication with the display device.

In one implementation, the controller is further configured to: and storing the corresponding relation between the second key value and an instruction for displaying the low-power prompt message of the control device.

In one implementation, the controller is further configured to:

receiving a starting-up instruction sent by a user;

and before responding to the first control instruction with the second key value, responding to the starting instruction, and acquiring and deleting a stored low-power prompt identifier, wherein the low-power prompt identifier is used for indicating that the controller displays low-power prompt information of the control device.

In one implementation, if the control instruction includes the second key value, the controller displays a low power prompt message of the control apparatus, and is configured to:

judging whether a stored low power prompt identifier exists, wherein the low power prompt identifier is used for indicating that the controller displays low power prompt information of the control device;

if the low power prompt mark exists, the low power prompt information of the control device is not displayed;

and if the low power prompt identification does not exist, displaying the low power prompt information of the control device and storing the low power prompt identification.

In a second aspect, the present application provides a control apparatus, in communication with a display device, comprising:

a receiver configured to receive a gesture operation sent by a user;

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

judging whether the current value of the pulse current is smaller than or equal to a preset current threshold value or not;

if the current value is larger than the preset current threshold value, the first key value is sent to the display equipment;

if the current value is smaller than or equal to the preset current threshold, generating a second key value, wherein the second key value is used for indicating that the control device is in a low power state, and sending the first key value and the second key value to the display equipment to indicate that the control device is in the low power state.

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 configured to:

acquiring a communication mode of the current communication with the display equipment;

acquiring a preset current threshold corresponding to the communication mode;

and judging whether the current value of the pulse current is less than or equal to the preset current threshold value.

In a third aspect, the present application provides a low power prompting method for a control device, which is applied to a display device, where the display device communicates with the control device, and the method includes:

In a fourth aspect, the present application provides a low power prompting method for a control apparatus, which is applied to a control apparatus, the control apparatus communicating with a display device, the method including:

receiving gesture operation sent by a user based on a key, wherein the key corresponds to a first key value;

responding to the gesture operation, and generating a pulse current corresponding to the first key value;

According to the technical scheme, when the display device is communicated with the control device, the control device receives gesture operation of a user based on a key, and responds to the gesture operation to generate pulse current for sending the first key value corresponding to the key. Before the control device sends the first key value to the display equipment, whether the pulse current value of the pulse current is lower than a preset current threshold value is judged to judge whether the pulse current is in a low power state, and when the pulse current value is judged to be in the low power state, a second key value is sent to the display equipment at the same time, so that the display equipment is directly indicated to display prompt information that the control device is in the low power state through the second key value. Because the pulse current value directly influences the sending effect of the key value, whether the control device is in the low power or not can be accurately judged based on the pulse current value, meanwhile, the control device directly indicates the display device to display the prompt information mode by sending the second key value to the display device, the display device is not required to judge the low power through specific service, and the original operation process is prevented from being influenced by the process of displaying the prompt information by the display device.

Drawings

In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a usage scenario of a display device in an embodiment of the present application;

fig. 2 is a block diagram of a hardware configuration of a control device in the embodiment of the present application;

fig. 3 is a block diagram of a hardware configuration of a control device in the embodiment of the present application;

fig. 4 is a hardware configuration diagram of a display device in an embodiment of the present application;

FIG. 5 is a software configuration diagram of a display device in an embodiment of the present application;

fig. 6 is a schematic flow chart illustrating the steps of determining low battery by the control device and indicating the display device to display the low battery prompt message according to the embodiment of the present disclosure;

FIG. 7 is a schematic flow chart illustrating the steps of determining the current value of the pulse current based on the current communication mode in the embodiment of the present application;

FIG. 8 is a schematic diagram illustrating a control apparatus sending a control command to a display device in response to a gesture operation of a user according to an embodiment of the present application;

FIG. 9 is a schematic flow chart of a display device responding to a control command sent by a control device in an embodiment of the present application;

fig. 10 is a flowchart illustrating a method for displaying a low battery prompt message according to an embodiment of the present disclosure;

FIG. 11 is a schematic flow chart illustrating a process of maintaining a stored low battery indicator flag according to an embodiment of the present application;

FIG. 12 is a schematic diagram of a display device responding to a control command sent by a control device in an embodiment of the present application;

fig. 13 is a schematic diagram of a user interface with a low battery prompt in an embodiment of the present application.

Detailed Description

Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following examples do not represent all embodiments consistent with the present application. But merely as exemplifications of systems and methods consistent with certain aspects of the application, as recited in the claims.

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

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

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

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

Fig. 1 is a schematic diagram of a usage scenario of a display device according to an embodiment. As shown in fig. 1, the display apparatus 200 may communicate with a server 300 via the internet, and a user may operate the display apparatus 200 through the control device 100.

In some embodiments, the control apparatus 100 may be a remote controller, and the communication between the remote controller and the display device includes at least one of an infrared protocol communication and/or a bluetooth protocol communication, and other short-distance communication methods, and controls the display device 200 in a wireless or wired manner. The user may control the display apparatus 200 by inputting at least one control command, such as a key on a remote controller, voice input, control panel input, and the like.

In some embodiments, the control apparatus 100 may also be a mobile terminal, such as a mobile phone, and the communication between the mobile terminal and the display device 200 includes at least one of internet protocol communication, bluetooth protocol communication, and other short-range communication and long-range communication. The user may control the display apparatus 200 by inputting a user instruction through at least one of a key on the mobile terminal, a voice input, a control panel input, and the like. Fig. 2 exemplarily shows a block diagram of the configuration of the control apparatus 100 taking a remote controller as an example. As shown in fig. 2, the control device 100 includes a controller, a communication interface, a user input/output interface, a memory, and a power supply.

Fig. 3 exemplarily shows a block diagram of a configuration of the control apparatus 100 taking a mobile terminal as an example. As shown in fig. 3, 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.

Fig. 4 shows a hardware configuration block diagram of the display apparatus 200 according to an exemplary embodiment.

In some embodiments, the display apparatus 200 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, a user interface.

In some embodiments, communicator 220 is a component for communicating with external devices or servers according to various communication protocol types. For example: the communicator may include at least one of a Wi-Fi module, a bluetooth module, a wired ethernet module, or other network communication protocol chip or near field communication protocol chip, and an infrared receiver. The display apparatus 200 may establish transmission and reception of a control signal and a data signal with the control device 100 or the server 300 through the communicator 220.

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

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

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

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

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

Referring to fig. 5, in some embodiments, the system is divided into four layers, which are an Application (Applications) layer (abbreviated as "Application layer"), an Application Framework (Application Framework) layer (abbreviated as "Framework layer"), an Android runtime (Android runtime) and system library layer (abbreviated as "system runtime library layer"), and a kernel layer, respectively, from top to bottom.

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

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

As shown in fig. 5, in the embodiment of the present application, the application framework layer includes a manager (Managers), a Content Provider (Content Provider), and the like, where the manager includes at least one of the following modules: an Activity Manager (Activity Manager) is used for interacting with all activities running in the system; the Location Manager (Location Manager) is used for providing the system service or application with the access of the system Location service; a Package Manager (Package Manager) for retrieving various information related to an application Package currently installed on the device; a Notification Manager (Notification Manager) for controlling display and clearing of Notification messages; a Window Manager (Window Manager) is used to manage the icons, windows, toolbars, wallpapers, and desktop components on a user interface.

The user transmits a control instruction to the display apparatus 200 through the control device 100 to control the display apparatus 200 to implement a corresponding function. In the embodiment of the application, the control device 100 is a stand-alone device that provides power for its normal operation by self-powering, i.e., battery-powered. When the control apparatus 100 communicates with the display device 200, the control apparatus 100 supplies power through its own power supply module, for example, a battery, and transmits a control command to the display device 200 in such a manner that the power supplied from the power supply module is converted into a pulse current to transmit the pulse current to the display device 200. It can be seen that the power that can be provided by the power supply module of the control device 100 affects the quality of the pulse current sent by the control device 100, that is, the lower the power that can be provided by the power supply module of the control device 100, the lower the current value of the pulse current sent by the control device 100, and the higher the power that can be provided by the power supply module of the control device 100, the higher the current value of the pulse current sent by the control device 100. The power that can be provided by the power supply module of the control device 100 is generally indicated by the power amount, that is, the higher the power that can be provided by the power supply module, the higher the corresponding power amount, and the lower the power that can be provided by the power supply module, the lower the corresponding power amount. Therefore, the higher the power of the control apparatus 100 is, the higher the quality of the pulse current that can be sent is, and the lower the power of the control apparatus 100 is, the lower the quality of the pulse current that can be sent is, when the power of the control apparatus 100 is lower than a certain power value, that is, when the control apparatus 100 is in a low power, the quality of the pulse current that can be sent is lower than a limit, that is, the pulse current will not have enough power to transmit to the display device 200, so that the display device 200 cannot receive the control command, or the power provided by the control apparatus 100 is not uniform, so that the pulse current in a part of the segment is lower, so that the part of the pulse current cannot transmit to the display device 200, so that the control command received by the display device 200 is intermittent, so that the received control command is incomplete.

It can be seen that, once the control device 100 is in a low power state, the transmission quality of the control command is seriously affected, so that the display device 200 cannot receive the control command or cannot receive a complete control command, and the accurate response of the display device 200 to the control command is affected, thereby affecting the control of the user on the display device 200 and reducing the user experience. In order to solve this problem, when the control device 100 is in a low power state, the user needs to be prompted in time so that the user can replace the battery of the control device 100 or charge the control device 100 as soon as possible.

Therefore, it is critical to avoid the user experience degradation due to the low power of the control device 100 to accurately determine whether the control device 100 is in the low power state and display the low power prompt message as soon as possible. Fig. 6 is a schematic flow chart of the control apparatus 100 determining low battery and controlling the display device 200 to display the low battery prompt message according to the embodiment of the present application, which includes the following specific steps:

s601, receiving gesture operation sent by a user based on a key, wherein the key corresponds to a first key value.

When a user generates a control demand for the display apparatus 200, a control instruction is transmitted to the display apparatus 200 through the control device 100. The user performs corresponding gesture operations on the keys on the control device 100 to input control instructions to the control device 100.

In the present embodiment, the key refers to any key other than the power-on key and the standby key of the control device 100, and the type of the key is different for different types of control devices 100, for example, if the control device 100 is a remote controller, the key refers to a physical key on the remote controller. For another example, the control device 100 is an external control device, such as a joystick, and if the joystick is controlled by a touch screen, the keys refer to virtual keys displayed on the touch screen.

In the present embodiment, the gesture operation refers to operations such as pressing, clicking, and sliding a key, for example, pressing an entity key, and clicking, sliding, and the like a virtual key.

In this embodiment, each key has a corresponding key value, and the key value may 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 execute the corresponding function. Taking the remote controller as an example for explanation, the key "1" on the remote controller corresponds to the first key value "1" and corresponds to the function "display channel 1", so that the first key value "1" has a corresponding relationship with the function "display channel 1", and when the display device 200 receives the first key value "1", the channel 1 will be displayed in response to the first key value.

In some embodiments, the user may send a voice instruction to the display device 200 based on the control apparatus 100, where the voice instruction corresponds to the control instruction, and the voice information corresponds to a key value, where the voice information may be any password other than "power off" and "standby", and each piece of voice information is used to instruct the display device 200 to perform a corresponding function. Taking a remote controller as an example, the remote controller is provided with a microphone, a 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", and when the display device 200 receives the voice information "channel 1", the channel 1 is displayed in response to the voice information.

And S602, responding to the gesture operation, and generating a pulse current corresponding to the first key value.

As can be seen from the above, the control apparatus 100 transmits a key value to the display device 200 in the form of a pulse current, and when the control apparatus 100 receives a gesture operation of a user, the pulse current corresponding to the first key value is generated to transmit the first key value to the display device 200 by transmitting the generated pulse current to the display device 200.

S603, judging whether the current value of the pulse current is smaller than or equal to a preset current threshold value.

As can be seen from the above, the power of the control device 100 will affect the transmission quality of the pulse current, so that the user needs to be prompted in time when the control device 100 is in a low power state. In order to improve the effectiveness of the prompt, in the present embodiment, an operation of the user actively sending a control instruction to the display device 200 through the control apparatus 100 is used as a trigger node, that is, a gesture operation of the user is received by the control apparatus 100 is used as a trigger node, the power determination of the control apparatus 100 is started, and when it is determined that the control apparatus 100 is in the low power state, the prompt information of the low power state of the control apparatus 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, the low power is judged first, so that when the control device 200 judges that the power is low, the indication information for indicating the display device 200 to display the prompt information of the low power 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 power of the control device 100 when responding to the first key value, at this time, because the attention of the user is focused on the display device 200, the probability that the prompt information is focused by the user can be effectively improved.

In this embodiment, the current value of the pulse current is used as a basis for determining whether the control device 100 is in a low power state. Based on the above description of the relationship between the electric energy, the electric quantity, and the transmission quality of the pulse current that can be provided by the power supply module of the control device 100, it can be known that the electric quantity (voltage) of the power supply module may affect the transmission quality of the pulse current, and the transmission quality of the pulse current may 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 may not be ensured, and a problem may occur that the display device 200 cannot receive the pulse current or receives the pulse current intermittently, and when the current value of the pulse current is greater than the preset current threshold, the transmission quality of the pulse current may be ensured, and the display device 200 may receive the complete pulse current, that is, the complete control instruction.

In an ideal state, the electric quantity and the voltage of the control device 100 can accurately correspond to the standard value of the current value of the pulse current. However, in practical applications, with the use of the control device 100, oxidation occurs in the internal circuit thereof, which may result in that the electric energy provided by the power supply module cannot be completely converted into the pulse current, i.e. the current value of the pulse current finally generated by the control device 100 may be lower than the standard value. Based on this, if the power or voltage of the control device 100 is used as the basis for determining the low power, for example, when the power is lower than the preset power threshold, or the voltage is lower than the preset voltage threshold, it is determined that the control device 100 is in the low power, and 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 is 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, and if the actual current value of the generated pulse current is less than or equal to the preset current threshold, the transmission quality of the pulse current will not be guaranteed, so that the same effect as the low power of the control device 100 is generated, but at this time, based on the basis of the determination of the power and the voltage, it is determined that the control device 100 is not in the low power. Obviously, compared with the electric quantity and the voltage of the control device 100, the current value of the pulse current is a parameter which more directly reflects the sending quality of the pulse current, so that the judgment of the electric quantity or the voltage of the control device 100 as the low electric quantity is not accurate, and the judgment accuracy can be effectively improved by taking the current value of the pulse current as the judgment of the low electric quantity of the control device 100.

The current values required for the control apparatus 100 to transmit the pulse current to the display device 200 are different based on different communication modes between the control apparatus 100 and the display device 200, i.e., there is a correspondence between the communication mode and the preset current threshold of the pulse current. For example, when the communication mode between the control apparatus 100 and the display device 200 is the bluetooth mode, the preset current threshold corresponding to the bluetooth mode is 80 mA; when the communication mode between the control device 100 and the display apparatus 200 is the infrared mode, the preset current threshold corresponding to the infrared mode is 40 mA.

Based on this, only when the current value of the pulse current generated by the control device 100 is greater than the current corresponding preset current threshold value, the transmission quality of the pulse current can be ensured. Therefore, fig. 7 is a flowchart for determining a current value of a pulse current based on a current communication mode according to an embodiment of the present application, which specifically includes the following steps:

s701, acquiring a communication mode of the current communication with the display equipment.

And S702, acquiring a preset current threshold corresponding to the communication mode.

And S703, judging whether the current value of the pulse current is less than or equal to the preset current threshold value.

After receiving the gesture operation sent by the user, the control device 100 acquires the currently used communication mode. In this embodiment, the control device 100 may have at least one selectable communication mode, for example, the selectable communication mode of the control device 100 may include an infrared mode, a bluetooth mode, and the like. The control apparatus 100 may obtain the recorded communication mode from the memory, for example, if the record in the memory is "bluetooth mode", determine that the communication mode currently used with the display device 200 is bluetooth mode. In the present embodiment, the control device 100 stores in advance the correspondence between the communication mode and the preset current threshold in the memory, for example, "infrared mode-40 mA" and "bluetooth mode-80 mA". Based on the pre-stored correspondence relationship, the control device 100 may determine a preset current threshold corresponding to the currently used communication mode, for example, if the currently used communication mode is the bluetooth mode, the preset current threshold is 80 mA. And then 80mA is used as a specific judgment basis for judging whether the current value of the pulse current corresponds to the low electric quantity.

S604, if the current value is larger than the preset current threshold value, the first key value is sent to the display equipment.

If the current value of the pulse current generated by the control device 100 is greater than the preset current threshold, it indicates that the control device 100 is not in a low power state, that is, the sending quality of the pulse current can be ensured, and at this time, the display device 200 does not need to display the prompt message of the low power state of the control device 100. Therefore, the control apparatus 100 only needs to normally send the first key value to the display device 200, so that the display device 200 executes the corresponding function in response to the first key value.

And S605, if the current value is smaller than or equal to the preset current threshold, generating a second key value, wherein the second key value is used for indicating that the control device is in a low power state, and sending the first key value and the second key value to the display equipment to indicate that the control device of the display equipment is in the low power state.

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 indicates that the control device 100 is currently in a low power state, that is, the sending quality of the pulse current cannot be guaranteed, and at this time, the display device 200 needs to display a prompt message of the low power state of the control device 100.

In the present embodiment, in order to avoid the display device 200 performing the determination process of whether the control apparatus 100 is in the low power state, the display device 200 is directly instructed by the control apparatus 100 to display the prompt information of the low power state. The control device 100 generates a specific key value, i.e., a second key value, based on the determination result that the current value is less than or equal to the preset current threshold, where the second key value is dedicated to identify that the control device 100 is in a low power state. In this embodiment, the second key value may be one key value or a combination of multiple key values, for example, the second key value is one key value "low", or the second key value is a combination of multiple key values "2", "4", "7", and "5".

In this embodiment, a corresponding relationship between the second key value and the determination result that the current value of the pulse current is smaller than or equal to the preset current threshold may be prestored in the memory of the control apparatus 100, and based on the corresponding relationship, when the control apparatus 100 determines that the current value is smaller than or equal to the preset current threshold, the second key value may be directly obtained.

In some embodiments, the memory of the control device 100 may have a correspondence relationship among the communication mode, the preset current threshold, and the second key value stored in advance. Exemplarily, "infrared mode- < 40 mA-second key value", "bluetooth mode- < 80 mA-second key value". Based on the above correspondence, the control device 100 can obtain all the correspondence by only once interacting with the memory in the process of determining the preset current threshold based on the currently used communication mode and 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, so that the efficiency of generating the second key value by the control device 100 can be improved by reducing the number of times of obtaining the correspondence by interaction with the memory, the efficiency of sending the control instruction to the display device 200 by the control device 100 can be improved, the time required by the display device 200 to receive the control instruction can be shortened, the response speed of the display device 200 is prevented from being influenced, and the use experience of the user is ensured.

It should be noted that, in the present embodiment, when the control apparatus 100 determines that the power is low, the control apparatus 100 simultaneously sends the second key value and the first key value to the display device 200, where as is clear from the above description, the control apparatus 100 can directly inform the display device 200 that the control apparatus 100 is low by sending the second key value to the display device 200 to instruct the display device 200 to display the prompt message of the low power of the control apparatus 100. Meanwhile, the control apparatus 100 may still instruct the display device 200 to perform a function corresponding to the first key value by transmitting the first key value to the display device 200. In this way, once the display device 200 recognizes the first key value, the function corresponding to the first key value may be executed in response to the first key value, so as to ensure that the display device 200 may normally respond to the user's requirement to the maximum extent.

Based on the workflow of the control device 100 responding to the gesture operation of the user, an example is provided, as shown in fig. 8, specifically as follows:

the control apparatus 100 is a remote controller that is currently connected to the display device 200. The user performs a gesture operation on the remote controller, and presses the key "1" as shown in fig. 8. The remote controller receives a gesture operation of a user, responds to the gesture operation, generates a pulse current corresponding to the first key value '1', and acquires a current value of the pulse current, such as 75 mA. The remote controller recognizes a communication mode, such as a bluetooth mode, currently with the display apparatus 200, and acquires a correspondence relationship, such as "bluetooth mode-80 mA", between the communication mode and a preset current threshold from the memory, and the remote controller determines the preset current threshold 80mA corresponding to the bluetooth mode based on the correspondence relationship. The remote controller judges whether the power is in a low power state or not based on a preset current threshold value of 80mA and a current value of pulse current of 75 mA. And if the current value of the pulse current is smaller than the preset current threshold value, the remote controller is judged to be in low power. And if the current value of the pulse current is larger than the preset current threshold value, the remote controller is not in a low power. The remote controller obtains the corresponding relation between the determination result and the second key value from the memory based on the determination result, for example, "the current value of the pulse current is less than or equal to the preset current threshold value-the second key value 'low'. Further, the remote controller determines the second key value as "low" based on the correspondence. The remote controller transmits a first key value "1" and a second key value "low" to the display device 200 to instruct the display device 200 to display the channel 1, and at the same time, instructs the display device 200 to display a prompt message for controlling the apparatus 100 to be low, such as "the remote controller is low in battery level".

Therefore, the current value of the pulse current is used as a basis for judging whether the battery is low in electricity, and the judgment is more accurate. Moreover, the process of determining whether the control apparatus 100 is in the low power state is centralized in the control apparatus 100, and the control apparatus 100 may directly instruct the display device 200 to display the low power prompt message by sending the second key value to the display device 200, so as to avoid affecting the operation process of the display device 200 itself.

After receiving the control instruction sent by the user through the control device 100, the display device 200 refers to the flow shown in fig. 9, and executes the function corresponding to the key value carried by the control instruction, which is specifically as follows:

s901, receiving a control instruction sent by a user, where the control instruction includes a first key value, and the first key value corresponds to a key acted on the control device by the user, and when the control device is in a low power state, the control instruction further includes a second key value, and the second key value is used to indicate that the control device is in the low power state.

After receiving a control instruction sent by a user, the display device 200 identifies a key value carried in the control instruction, and determines whether the identified key value includes a second key value. In the present embodiment, the second key value is pre-stored in the memory of the display device 200. The display device 200 determines whether a second key value exists in the identified key values by comparing each identified key value with a pre-stored second key value. And 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.

And S902, responding to the control instruction, executing a function corresponding to the first key value, wherein if the control instruction comprises the second key value, displaying low-power prompt information of the control device.

The display apparatus 200 performs a function corresponding to the recognized key value. In one case, if the control instruction only carries a first key value, which indicates that the control apparatus 100 is not currently in a low power state, the display device 200 only needs to respond to the first key value to execute a function corresponding to the first key value. Illustratively, 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 not only carries the first key value but also carries the second key value, which indicates that the control apparatus 100 is currently in a low power state, the display device 200 not only needs to respond to the first key value to execute the function corresponding to the first key value, but also needs to respond to the second key value to display a prompt message of the low power state of the control apparatus 100. Illustratively, the first key value is "1", the second key value is "low", the display apparatus 200 displays the channel 1 in response to the first key value, and at the same time, the display apparatus 200 also displays "the remote controller battery power is low" in response to the second key value.

The display device 200 prestores a correspondence relationship between the second key value and the instruction for displaying the low power prompt information of the control apparatus 100, and when the display device 200 recognizes the second key value, the instruction for displaying the low power prompt information of the control apparatus 100 can be obtained based on the correspondence relationship, and further the instruction is responded to, and the low power prompt information is displayed. As can be seen, if the display device 200 receives the control instruction with the second key value each time, the above process needs to be executed to display the low power prompt message, which not only occupies the computing resource of the display device 200 and affects the response efficiency of the display device 200 to the first key value, but also affects the user experience of the user when the display device 200 frequently displays the low power prompt message.

In order to solve the above problem, in this embodiment, a method for displaying a low battery prompt message is provided, which refers to the flow shown in fig. 10, and specifically includes the following steps:

s1001, judging whether a stored low power prompt mark exists or not, wherein the low power prompt mark is used for indicating that the controller displays low power prompt information of the control device.

In this embodiment, each time the display device 200 is powered on, the display device 200 is configured to display the low power prompt message of the control apparatus 100 in each judgment unit only when the second key value is recognized for the first time, in order to limit the number of times the display device 200 displays the low power prompt message. In the present embodiment, after the display device 200 initially displays the low power prompt message of the control apparatus 100, a low power prompt flag is stored in the memory to record that the low power prompt message has been displayed. The display device 200 may determine whether the low power indication information of the control apparatus 100 has been displayed by recognizing whether the low power indication flag exists in the memory.

In this embodiment, the power-on operation of the display device 200 may refer to power-on and power-on after the power of the display device 200 is off, or may refer to re-operation after the display device 200 is standby. Referring to the flow shown in fig. 11, the stored low battery indication flag may be maintained as follows:

s1101, receiving a starting instruction sent by a user.

And S1102, before responding to the first control instruction with the second key value, responding to the starting instruction, and acquiring and deleting a stored low-power prompt identifier, wherein the low-power prompt identifier is used for indicating that the controller has already displayed low-power prompt information of the control device.

The user presses a standby key on the control device 100 to send a power-on instruction to the display apparatus 200 to instruct the display apparatus 200 in the standby state to restart the operation. Alternatively, the user may send a power-on command to the display device 200 by pressing a power key on the control apparatus 100, so as to instruct the display device 200 in the power-off and power-off state to power on and power on. Or, the user directly presses a power-on button on the display device 200 to send a power-on instruction to the display device 200 to instruct the display device 200 in the power-off and power-off state to power on and power on.

If the display device 200 displays the low power prompt message of the control apparatus 100 during the last power-on operation, the memory stores a low power prompt flag. After the display device 200 enters the current startup operation process, even if the control instruction with the second key value is received for the first time, based on the fact that the low power prompt identifier generated in the previous startup operation process is stored in the memory, the stored low power prompt identifier is determined to exist, so that the low power prompt information of the control device 100 is determined to have been displayed, and the low power prompt information is not displayed in the current startup operation process, so that the effect of prompting the user cannot be achieved.

In order to avoid that the stored low power prompt identifier of the display device 200 in the last startup operation affects the process of displaying the low power prompt information in the current startup operation process, the stored low power prompt identifier needs to be deleted. It should be noted that the process of deleting the low power prompt identifier stored in the last boot operation of the display device 200 must be completed before executing the second key value received in response to the first time.

In an implementation manner, the display device 200 may immediately obtain the low power prompt identifier stored in the memory after the power on operation, so that it is ensured that the display device 200 completes the deletion of the low power prompt identifier before responding to the first reception of the second key value, so that the process of responding to the first reception of the second key value by the display device 200 is not affected by the low power prompt identifier stored in the previous power on operation, and the low power prompt information of the control apparatus 100 may be normally displayed in the current power on operation process.

In one implementation, the display device 200 may preferentially execute the task of deleting the low power prompt identifier in response to a control instruction sent by the user through the control apparatus 100 when the control instruction is received for the first time, and execute the task indicated by the control instruction itself after deleting the low power prompt identifier. In this implementation manner, 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 preferentially executes the task of deleting the low power prompt identifier in response to the control instruction, and executes the task corresponding to the second key value after deleting the power prompt identifier. The task execution sequence responding to the control instruction can effectively avoid the influence of the low-power prompt identifier stored in the last operation process, which is not deleted in time, on the task when the task corresponding to the second key value is executed. At this time, the display device 200 receives the control instruction with the second key value for the first time, and when it is determined whether the stored low power prompt identifier exists, since the stored low power prompt identifier during the last startup operation has been deleted, it is determined that the stored low power prompt identifier does not exist as a result. In this implementation manner, if the control instruction received by the display device 200 for the first time is a control instruction without the second key value, in the process of responding to the control instruction this time, the task of deleting the low power prompt identifier stored in the previous operation process is completed, and therefore, before the display device 200 subsequently receives the control instruction with the second key value, the low power prompt identifier stored in the previous operation process does not exist, and the response process to the second key value is not affected.

In one implementation, when receiving a control instruction with a second key value for the first time, the display device 200 may preferentially execute a task of deleting the low power prompt identifier in response to the control instruction, and execute a task corresponding to the second key value after deleting the power prompt identifier. The task execution sequence responding to the control instruction can effectively avoid the influence of the low-power prompt identifier stored in the last operation process, which is not deleted in time, on the task when the task corresponding to the second key value is executed. Specifically, the display device 200 counts the number of times of receiving the second key value from 0 by using the current power-on operation process as a statistical unit, and accumulates 1 on the number of times of currently receiving the second key value each time the control instruction with the second key value is received. Therefore, when the display device 200 recognizes that the number of times of currently receiving the second key value is 1, it is determined that the control instruction with the second key value is received for the first time, and at this time, the task of deleting the low power prompt identifier is executed according to the task execution sequence.

And S1002, if the low power prompt mark exists, not displaying the low power prompt information of the control device.

If the display device 200 recognizes that the low power prompt identifier exists in the memory, it indicates that the display device 200 has already displayed the low power prompt information in the current determination unit, and the display device does not need to repeatedly display the low power prompt information. Based on this, the display device 200 will not respond to the second key value, and will not display the low power prompt information of the control apparatus 100 to avoid repeated prompts. At this time, the display apparatus 200 only needs to execute a function corresponding to the first key value in response to the first key value.

S1003, if the low power prompt mark does not exist, displaying low power prompt information of the control device, and storing the low power prompt mark.

If the display device 200 does not recognize that the low power prompt identifier exists in the memory, it indicates that the display device 200 is in the current determination unit, and the low power prompt information is not yet displayed, and needs to be displayed to prompt the user. Based on this, the display device 200 will display the low power prompt message of the control apparatus 100 in response to the second key value, and execute the function corresponding to the first key value in response to the first key value.

Based on the above-mentioned display device 200 responding to the control instruction sent by the control apparatus 100, an example is provided, as shown in fig. 12, specifically as follows:

the control apparatus 100 takes a remote controller as an example, and the display device 200 communicates with the remote controller. The user presses a power-on key on the remote controller to transmit a power-on instruction to the display apparatus 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 stored low power prompt identifier (the low power prompt identifier stored in the last power-on operation process) is acquired from the memory, and the acquired low power prompt identifier is deleted, at this time, the low power prompt identifier does not exist in the memory.

As shown in fig. 8, the remote controller transmits a control instruction including a first key value "1" and a second key value "low" to the display apparatus 200. The display device 200 recognizes the second key value "low" from the control instruction based on the second key value information stored in advance, the display device 200 first determines whether a low power prompt identifier currently exists in the memory, if the low power prompt identifier does not currently exist, it indicates that the low power prompt information of the control apparatus 100 is not displayed in the current power-on operation process of the display device 200, the display device 200 responds to the second key value "low" to display the low power prompt information, such as "the remote controller has low battery", and responds to the first key value "1" to display the channel 1, as shown in fig. 13, and after the low power prompt information is displayed, the low power prompt identifier is stored in the memory. When the subsequent display device 200 receives the control instruction with the second key value again, the low power prompt information is not repeatedly displayed based on the determination result that the low power prompt identifier already exists. If the low power prompt flag currently exists, it indicates that the display device 200 has already displayed the low power prompt message of the control apparatus 100, and the display device 200 does not display the low power prompt message any more, so as to avoid repeated prompts.

As can be seen from the above technical solutions, when the display device 200 communicates with the control apparatus 100, the control apparatus 100 receives a gesture operation based on a key by a user, and generates a pulse current for transmitting a first key value corresponding to the key 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 a preset current threshold value, and when it is determined that the pulse current value is lower than the preset current threshold value, it sends a second key value to the display device 200 at the same time, so as to directly instruct the display device 200 to display a prompt message that the control device is lower than the preset current threshold value. Because the pulse current value directly affects the sending effect of the key value, whether the control device 100 is in the low power level can be accurately judged based on the pulse current value, meanwhile, the control device 100 directly indicates the display device 200 to display the prompt information mode by sending the second key value to the display device 200, and the display device 200 is not required to judge the low power level through a specific service, so that the process that the display device 200 displays the prompt information is prevented from affecting the original operation process.

The embodiments provided in the present application are only a few examples of the general concept of the present application, and do not limit the scope of the present application. Any other embodiments extended according to the scheme of the present application without inventive efforts will be within the scope of protection of the present application for a person skilled in the art.

Claims

1. A display device, in communication with a control apparatus, comprising:

a controller configured to:

2. The display device according to claim 1, wherein the second key value corresponds to a pulse current of a specified current value generated by the control means, the specified current value being a current value less than or equal to a preset current threshold value.

3. The display device of claim 2, wherein the preset current threshold corresponds to a communication mode in which the control apparatus is currently in communication with the display device.

4. The display device of claim 1, wherein the controller is further configured to: and storing the corresponding relation between the second key value and an instruction for displaying the low-power prompt message of the control device.

5. The display device of claim 1, wherein the controller is further configured to:

receiving a starting-up instruction sent by a user;

6. The display device of claim 1, wherein if the control instruction comprises the second key value, the controller displays a low battery reminder message for the control apparatus, configured to:

7. A control apparatus, in communication with a display device, comprising:

the receiver is configured to receive gesture operation sent by a user based on a key, and the key corresponds to a first key value;

8. The control device of claim 7, wherein the controller determines whether the current value of the pulse current is less than or equal to a preset current threshold value configured to:

acquiring a preset current threshold corresponding to the communication mode;

9. A low power prompting method of a control device is applied to a display device, the display device is communicated with the control device, and the method comprises the following steps:

10. A low power prompting method of a control device is applied to the control device, the control device is communicated with a display device, and the method comprises the following steps: