CN112087583A - Display method, display device, multimedia equipment and storage medium - Google Patents
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- 238000000034 method Methods 0.000 title claims abstract description 56
- 238000012544 monitoring process Methods 0.000 claims abstract description 18
- 238000004590 computer program Methods 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 description 12
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/147—Digital output to display device ; Cooperation and interconnection of the display device with other functional units using display panels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
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Abstract
The invention discloses a display method, which is applied to multimedia equipment and comprises the following steps: monitoring whether the multimedia equipment is accessed to a target signal source of a preset type or not under the condition that the multimedia equipment is in a starting state; and if the multimedia equipment is monitored to be accessed to the target signal source, controlling the multimedia equipment to display a picture according to the target signal source. The invention also discloses a display device, multimedia equipment and a storage medium. The method can avoid the teacher from manually selecting the accessed target signal source, effectively reduces the operation steps of the teacher, reduces the teaching preparation time and improves the teaching efficiency.
Description
Technical Field
The present invention relates to the field of electronic devices, and in particular, to a display method and apparatus, a multimedia device, and a storage medium.
Background
In recent years, the development of intelligent education brings great changes to education forms and learning modes, the traditional teaching mode gradually changes to an emerging teaching mode, and the multimedia teaching mode becomes a common mode in the emerging teaching mode.
The multimedia teaching mode is to use multimedia equipment to carry out teaching, in the teaching process, the multimedia equipment needs to be connected with a specific signal source, then a teacher selects the specific signal source, and the multimedia equipment can display the teaching content of the specific signal source to students, so that the teaching purpose is realized.
However, in the prior art, the operation of displaying the signal source by the multimedia device is cumbersome.
Disclosure of Invention
The invention mainly aims to provide a display method, a display device, multimedia equipment and a storage medium, and aims to solve the technical problem that the operation of a display signal source of the multimedia equipment is complicated in the prior art.
In order to achieve the above object, the present invention provides a display method applied to a multimedia device, the display method including the following steps:
monitoring whether the multimedia equipment is accessed to a target signal source of a preset type or not under the condition that the multimedia equipment is in a starting state;
and if the multimedia equipment is monitored to be accessed to the target signal source, controlling the multimedia equipment to display a picture according to the target signal source.
Optionally, after the step of monitoring whether the multimedia device is accessed to a preset type of target signal source, the display method further includes:
and if the situation that the multimedia equipment does not access the target signal source is monitored, controlling the multimedia equipment to be in a screen-off state.
Optionally, if it is monitored that the multimedia device accesses the target signal source, the step of controlling the multimedia device to display a picture according to the target signal source includes:
if the multimedia equipment is monitored to be accessed to the target signal source, detecting the current display state of the multimedia equipment;
if the current display state is detected to be a screen turning state, calling a preset API (application program interface) preset in the multimedia equipment, and controlling the multimedia equipment to be adjusted from the screen turning state to a screen lightening state;
and if the current display state is detected to be a bright screen state, controlling the multimedia equipment to display the picture according to the target signal source.
Optionally, if it is monitored that the multimedia device does not access the target signal source, the step of controlling the multimedia device to be in a screen-off state includes:
if the situation that the multimedia equipment does not access the target signal source is monitored, detecting the current display state of the multimedia equipment;
and if the current display state is detected to be the bright screen state, calling a preset API (application program interface) preset in the multimedia equipment, and controlling the multimedia equipment to be adjusted from the bright screen state to the bright screen state.
Optionally, before the step of monitoring whether the multimedia device is accessed to a preset type of target signal source, the display method further includes:
and after the multimedia equipment is detected to finish the preset action, determining that the multimedia equipment is in a starting state.
In addition, to achieve the above object, the present invention also provides a display device applied to a multimedia apparatus, the display device including:
the monitoring module is used for monitoring whether the multimedia equipment is accessed to a target signal source of a preset type or not under the condition that the multimedia equipment is in a starting state;
and the first control module is used for controlling the multimedia equipment to display a picture according to the target signal source if the multimedia equipment is monitored to be accessed to the target signal source.
Optionally, the display device further comprises:
and the second control module is used for controlling the multimedia equipment to be in a screen-off state if the situation that the multimedia equipment does not access the target signal source is monitored.
Optionally, the first control module comprises:
the detection submodule is used for detecting the current display state of the multimedia equipment if the multimedia equipment is monitored to be accessed to the target signal source;
the first control submodule is used for calling a preset API (application program interface) preset in the multimedia equipment and controlling the multimedia equipment to be adjusted from the screen-on state to the screen-on state if the current display state is detected to be the screen-on state;
and the second control submodule is used for controlling the multimedia equipment to display the picture according to the target signal source if the current display state is detected to be a bright screen state.
Optionally, the second control module includes:
the second detection submodule is used for detecting the current display state of the multimedia equipment if the situation that the multimedia equipment does not access the target signal source is monitored;
and the third control sub-module is used for calling a preset API (application program interface) preset in the multimedia equipment and controlling the multimedia equipment to be adjusted from the screen-on state to the screen-off state if the current display state is detected to be the screen-on state.
Optionally, the display device further includes:
the determining module is used for determining that the multimedia equipment is in a starting state after the multimedia equipment is detected to execute the preset action.
In addition, to achieve the above object, the present invention also provides a multimedia device, including: memory, a processor and a computer program stored on the memory and running on the processor, the computer program, when executed by the processor, implementing the steps of the display method as claimed in any one of the above.
Furthermore, to achieve the above object, the present invention further proposes a storage medium having a computer program stored thereon, the computer program, when executed by a processor, implementing the steps of the display method according to any one of the above.
The display method provided by the embodiment of the invention is used for a multimedia device, and the method comprises the steps of monitoring whether the multimedia device is accessed to a target signal source of a preset type or not under the condition that the multimedia device is in a starting state; and if the multimedia equipment is monitored to be accessed to the target signal source, controlling the multimedia equipment to display a picture according to the target signal source. Compared with the prior art, after the signal input line or the signal input device of the target signal source is inserted into the multimedia device, the target signal source can be displayed only when the signal of the target signal source is manually selected by a user is received, so that the operation steps of signal source display are effectively simplified, the operation of the multimedia device for displaying the signal source is more convenient, and the operation efficiency of the multimedia device is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a terminal device in a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating a display method according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of another embodiment of a display method according to the present invention;
FIG. 4 is a schematic flow chart illustrating a display method according to another embodiment of the present invention;
fig. 5 is a schematic structural diagram of a display device according to an embodiment of the invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the prior art, when a teacher uses a multimedia device to perform multimedia teaching, a specific signal source, for example, an HDMI signal source, needs to be accessed first, that is, the teacher needs to insert an HDMI signal line into the multimedia device first, then, operates a control device (for a TV, a remote controller, or a computer display, a mouse) of the multimedia device, and selects the inserted HDMI signal source, at this time, the multimedia device can normally display the teaching content of the HDMI signal source.
However, in general, the multimedia device is in an unrestricted state, that is, any person can operate the multimedia device, for example, a student can operate the remote controller to select other content provided by the multimedia device, such as other signal sources or under a page. Therefore, when the teacher needs to perform multimedia teaching, the multimedia device may be under other signal sources or pages due to being controlled by other students, and at this time, the teacher needs to control the control device again after accessing the HDMI signal source, so that the multimedia device selects the accessed HDMI signal source, this process increases the operation steps of the teacher using the multimedia device to perform teaching, leads to the fact that the teacher operates the multimedia device tediously, and increases the teaching preparation time.
Based on the above findings, the inventors of the present application propose: the method comprises the following steps of monitoring whether the multimedia equipment is accessed to a preset type of target signal source (namely a specific signal source) under the condition that the multimedia equipment is in a power-on state, and automatically controlling the multimedia equipment to display the target signal source if the multimedia equipment is monitored to be accessed to the preset type of target signal source. According to the method and the device, after the multimedia equipment is monitored to be connected into the preset type of target signal source, the multimedia equipment is automatically controlled to display the target signal source, so that a teacher is prevented from manually selecting the connected target signal source, the operation steps of the teacher are effectively reduced, the teaching preparation time is shortened, and the teaching efficiency is improved.
It should be noted that the display method of the present invention is not limited to the teaching scene, but can also be used in any other scene that needs to control the display of the multimedia device, and therefore, the direct user of the multimedia device is not limited to teachers and students. In the following embodiments, in order to facilitate understanding of the technical solutions of the present application, the direct users of the multimedia devices are taken as teachers and students for detailed description.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a multimedia device in a hardware operating environment according to an embodiment of the present invention.
The multimedia device refers to an electronic device for displaying a signal source, which may be a Television (Television, TV), a PC, a mobile phone, a tablet, an electronic whiteboard, a computer display, or the like.
Generally, a multimedia device includes: at least one processor 301, a memory 302 and a computer program stored on said memory and executable on said processor, said computer program being configured to implement the steps of the display method as described in any of the following embodiments.
The processor 301 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and so on. The processor 301 may be implemented in at least one hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), and a PLA (Programmable Logic Array). The processor 301 may also include a main processor and a coprocessor, where the main processor is a processor for processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 301 may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content required to be displayed on the display screen. The processor 301 may further include an AI (Artificial Intelligence) processor for processing operations related to the display method, so that the display method model can be trained autonomously, improving efficiency and accuracy.
In some embodiments, the multimedia device may further include: a communication interface 303 and at least one peripheral device. The processor 301, the memory 302 and the communication interface 303 may be connected by a bus or signal lines. Various peripheral devices may be connected to communication interface 303 via a bus, signal line, or circuit board. Specifically, the peripheral device includes: at least one of radio frequency circuitry 304, a display screen 305, and a power source 306.
The communication interface 303 may be used to connect at least one peripheral device related to I/O (Input/Output) to the processor 301 and the memory 302. In some embodiments, processor 301, memory 302, and communication interface 303 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor 301, the memory 302 and the communication interface 303 may be implemented on a single chip or circuit board, which is not limited in this embodiment.
The Radio Frequency circuit 304 is used for receiving and transmitting RF (Radio Frequency) signals, also called electromagnetic signals. The radio frequency circuitry 304 communicates with communication networks and other communication devices via electromagnetic signals. The rf circuit 304 converts an electrical signal into an electromagnetic signal to transmit, or converts a received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 304 comprises: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a subscriber identity module card, and so forth. The radio frequency circuitry 304 may communicate with other terminal devices via at least one wireless communication protocol. The wireless communication protocols include, but are not limited to: metropolitan area networks, various generation mobile communication networks (2G, 3G, 4G, and 5G), Wireless local area networks, and/or WiFi (Wireless Fidelity) networks. In some embodiments, the rf circuit 304 may further include NFC (Near Field Communication) related circuits, which are not limited in this application.
The display screen 305 is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. When the display screen 305 is a touch display screen, the display screen 305 also has the ability to capture touch signals on or over the surface of the display screen 305. The touch signal may be input to the processor 301 as a control signal for processing. At this point, the display screen 305 may also be used to provide virtual buttons and/or a virtual keyboard, also referred to as soft buttons and/or a soft keyboard. In some embodiments, the display screen 305 may be one, the front panel of the electronic device; in other embodiments, the display screens 305 may be at least two, respectively disposed on different surfaces of the electronic device or in a folded design; in still other embodiments, the display screen 305 may be a flexible display screen disposed on a curved surface or a folded surface of the electronic device. Even further, the display screen 305 may be arranged in a non-rectangular irregular figure, i.e. a shaped screen. The Display screen 305 may be made of LCD (liquid crystal Display), OLED (Organic Light-Emitting Diode), and the like.
The power supply 306 is used to power various components in the electronic device. The power source 306 may be alternating current, direct current, disposable or rechargeable. When the power source 306 includes a rechargeable battery, the rechargeable battery may support wired or wireless charging. The rechargeable battery may also be used to support fast charge technology. Those skilled in the art will appreciate that the configuration shown in fig. 1 does not constitute a limitation of the display device and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
Furthermore, an embodiment of the present invention further provides a storage medium, where a computer program is stored, and when the computer program is executed by a processor, the steps of the display method according to any one of the following embodiments are implemented. Therefore, a detailed description thereof will be omitted. In addition, the beneficial effects of the same method are not described in detail. For technical details not disclosed in embodiments of the computer-readable storage medium referred to in the present application, reference is made to the description of embodiments of the method of the present application. It is determined that, by way of example, the program instructions may be deployed to be executed on one computing device or on multiple computing devices at one site or distributed across multiple sites and interconnected by a communication network.
It will be understood by those of ordinary skill in the art that all or part of the processes of any of the methods described below can be implemented by a computer program that can be stored in a computer-readable storage medium and that, when executed, can include processes of the embodiments of the methods described below. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
Based on the above hardware structure, an embodiment of the display method of the present invention is provided.
Referring to fig. 2, fig. 2 is a flowchart illustrating steps of a display method according to an embodiment of the present invention, the display method is applied to a multimedia device, and the display method includes the following steps:
step S11, monitoring whether the multimedia device is connected to a target signal source of a preset type when the multimedia device is in a power-on state.
In this embodiment, the target signal source refers to a signal source corresponding to a preset type. The preset type may be any one or more types of common multimedia signal sources, for example, may be one or more types of HDMI signal sources, VGA signal sources, or USB signal sources, and the type and number of the target signal sources are not limited in this embodiment. In general, the multimedia device may default the target signal source to any one of the plurality of signal sources when the multimedia device leaves the factory, for example, the target signal source is set to be a VGA signal source by default when the multimedia device leaves the factory.
Each signal source may correspond to a signal source interface with the same name on the multimedia device, for example, a VGA signal source corresponds to a VGA interface, an HDMI signal source corresponds to an HDMI interface, and a USB signal source corresponds to a USB interface. Therefore, in practical use, the multimedia device can be connected to a signal source by inserting a corresponding signal input line (VGA signal line, HDMI signal line, etc.) or a signal input device (storage medium with USB interface) into a corresponding signal source interface. In this embodiment, any suitable prior art may be adopted in the method for monitoring whether the multimedia device accesses the signal source and determining the type of the accessed multimedia signal source, which is not described in this embodiment.
In one embodiment, some signal sources may correspond to multiple signal source interfaces, for example, an HDMI signal source may have 3 HDMI interfaces, HDMI interface 1, HDMI interface 2, and HDMI interface 3. The present embodiment does not limit the number of interfaces corresponding to each signal source.
In an embodiment, the teacher may set the preset type through the control device of the multimedia device, that is, the teacher may set a signal source used by the teacher himself and used by the teacher himself as the target signal source, for example, the multimedia device leaves a factory and defaults that the target signal source is a VGA signal source, but the signal source used by the teacher and used by the teacher himself is an HDMI signal source, at this time, the VGA signal source is not a signal source used by the teacher and used by the teacher through the control device of the multimedia device, and therefore, the teacher may set the HDMI signal source as the target signal source through the control device of the multimedia device, and if the signal source used by the teacher and used by. Therefore, the teacher can use the signal source habitually used by the teacher as the target signal source, and compared with other signal sources, the use frequency of the teacher is higher, so that the teacher can be more fit with the habit of the teacher.
If a plurality of signal sources are set as target signal sources through a control device of the multimedia device, if a teacher inserts a plurality of signal sources at the same time, the multimedia device cannot correctly know what signal source is displayed, and a display error may be caused.
In an embodiment, the signal source display policy may be a selection policy based on an access sequence of the target signal source, for example, the multimedia device accesses the VGA signal source and the HDMI signal source sequentially, and the multimedia device is configured to display a signal source that is newly accessed, that is, the HDMI signal source.
In one embodiment, the signal source display policy may be a priority-based selection policy, for example, when a teacher sets multiple signal sources as target signal sources, the teacher may set priorities among the multiple target signal sources, for example, the target signal sources are VGA signal sources and HDMI signal sources, the priority of the VGA signal source is 1, the priority of the HDMI signal source is 2, and the higher the priority is, and therefore, when the VGA signal source and the HDMI signal source are simultaneously accessed, the multimedia device displays the HDMI signal source.
And step S12, if the multimedia device is monitored to be accessed to the target signal source, controlling the multimedia device to display a picture according to the target signal source.
In this embodiment, after the teacher inserts the signal input line or the signal input device of the target signal source into the interface corresponding to the corresponding target signal source, it can be monitored that the multimedia device accesses the target signal source, at this time, the multimedia device can automatically select the target signal source, that is, if the multimedia device is displaying other signal sources, the multimedia device can directly jump and display the picture corresponding to the target signal source according to the target signal source, or the multimedia device is on other pages, or the multimedia device can directly jump and display the picture corresponding to the target signal source according to the target signal source.
By adopting the display method of the embodiment, whether the multimedia device is accessed to a preset type of target signal source is monitored under the condition that the multimedia device is in the power-on state, and if the multimedia device is monitored to be accessed to the target signal source, the multimedia device is controlled to display the target signal source. In addition, by adopting the display method of the embodiment, even under the condition that the control device of the multimedia device is lost, the target signal source can be normally selected and displayed, and the dependence of the multimedia device on the use of the control device on the target signal source is reduced.
In addition, considering that after monitoring whether the multimedia device accesses a preset type of target signal source, there may be a case that the multimedia device does not access the target signal source, at this time, it is described that the teacher does not use the multimedia device, so as to avoid that the student operates the remote controller to select other content provided by the multimedia device, so that the multimedia device is in other risk pages, for example, pages such as system settings and the like, and therefore, in another embodiment, referring to fig. 3, fig. 3 is a flowchart of another embodiment of the display method of the present invention, as shown in fig. 3, the display method may further include the following steps in addition to the above step S11 and step S12:
and step S13, if it is monitored that the multimedia device does not access the target signal source, controlling the multimedia device to be in a screen-off state.
In this embodiment, in the screen saver state, the multimedia device cannot display a picture, and the screen is not bright, for example, the multimedia device may be in a standby state.
The multimedia device does not access a target signal source, which indicates that the teacher does not use the multimedia device, and at this time, the multimedia device can be controlled to be in the screen-saving state. Therefore, the students can be prevented from operating the multimedia equipment, the multimedia equipment is prevented from being in other risk pages, and the multimedia equipment is protected.
Meanwhile, the multimedia equipment is in a screen turning state, so that energy can be saved.
With reference to the foregoing embodiment, the multimedia device may have a screen-off state and a screen-on state, and because the multimedia device does not display a picture in the screen-off state, in order to enable the multimedia device to normally display the target signal source when it is monitored that the multimedia device is connected to the target signal source, the step S12 may specifically include the following steps:
step S121, if it is monitored that the multimedia device is accessed to the target signal source, detecting the current display state of the multimedia device.
Step S122, if the current display state is detected to be the screen-on state, calling a preset API (application program interface) preset in the multimedia equipment, and controlling the multimedia equipment to be adjusted from the screen-on state to the screen-on state.
And S123, if the current display state is detected to be a bright screen state, controlling the multimedia equipment to display the picture according to the target signal source.
In this embodiment, the current display state of the multimedia device refers to a display state in which a screen of the multimedia device is currently located, and includes a screen-turning state and a screen-lighting state, where in the screen-lighting state, the screen can normally display a picture.
In practice, if it is monitored that the multimedia device accesses the target signal source, the current display state of the multimedia device may be further detected, if it is detected that the multimedia device does not access the target signal source at the previous time, the multimedia device is in a screen saver state, and since the screen saver state is incapable of displaying pictures, a preset API (Application Programming Interface) preset in the multimedia device may be called to control the multimedia device to adjust from the screen saver state to a screen saver state, and if the multimedia device is in the screen saver state, the multimedia device may be controlled to display the target signal source. In this embodiment, any suitable preset API may be used to perform screen turning and screen lighting control on the multimedia device, which is described in this embodiment again.
In an embodiment, in a case that the multimedia device has multiple target signal sources, if the multimedia device has already accessed one target signal source, and if the multimedia device accesses another signal source at the next time, the multimedia device is in a bright screen state at the next time, at this time, the multimedia screen state does not need to be adjusted by calling a preset API, that is, the bright screen state is maintained.
With reference to the foregoing embodiment, the multimedia device may have an information screen state and a bright screen state, and in an implementation manner, the step S13 may specifically include the following steps:
step S131, if it is monitored that the multimedia device does not access the target signal source, detecting the current display state of the multimedia device.
Step S132, if the current display state is detected to be the bright screen state, calling a preset API preset in the multimedia device, and controlling the multimedia device to adjust from the bright screen state to the dim screen state.
In a practical scenario, if the teacher decides not to display the target signal source after using the multimedia device to display the target signal source, the teacher may unplug the signal input line or the signal input device of the inserted target signal source, that is, the multimedia device is still in a bright screen state while unplugging the signal input line or the signal input device of the target signal source.
Therefore, if it is detected that the target signal source is not accessed by the multimedia device, the current display state of the multimedia device can be further detected, if it is detected that the target signal source is accessed by the multimedia device at the previous moment, the multimedia device is in a screen-on state, and at the moment, a preset API preset in the multimedia device can be called to control the multimedia device to be adjusted from the screen-on state to the screen-off state. Similarly, in this embodiment, any suitable preset API may be used to perform screen-down and screen-up control on the multimedia device, which is described in this embodiment again.
In another practical scenario, if the teacher has not used the multimedia device to display the target signal source for a previous period of time, the current display state of the multimedia device is the screen saver state. Therefore, in another embodiment, if it is detected that the multimedia device does not access the target signal source, the current display state of the multimedia device may be further detected, and if it is detected that the multimedia device is in the sniff state, at this time, the state of the multimedia screen does not need to be adjusted by calling a preset API, that is, the sniff state is maintained.
In addition, considering that the multimedia device does not display a picture in the screen saver state and the multimedia device does not display a picture in the damaged state, therefore, if the multimedia device is in the screen saver state all the time after being turned on, it cannot be clearly distinguished whether the multimedia device is a screen saver caused by damage or a screen saver caused by not monitoring a target signal source, and therefore, in order to accurately distinguish the cause of the screen saver and to timely distinguish whether the multimedia device is damaged, in an embodiment, referring to fig. 4, fig. 4 is a schematic flow diagram of another embodiment of the display method of the present invention, as shown in fig. 4, before the step S11, the display method of the present invention may further include the following steps:
step S10, after detecting that the multimedia device has performed the preset action, determining that the multimedia device is in a power-on state.
In this embodiment, the preset action may be a boot image, boot music, or boot video.
In practice, after the teacher presses the power-on instruction, the multimedia device responds to the power-on instruction, immediately executes the preset power-on action, and after the multimedia device executes the preset action, the multimedia device can be determined to be in the power-on state.
The multimedia equipment responds to the starting-up instruction and executes the starting-up action, and the teacher can see the starting-up action, so that the multimedia equipment is determined not to be damaged, and the multimedia equipment can be continuously used for displaying the target source signal subsequently. In addition, no matter the multimedia equipment is in a starting state or a shutdown state, the teacher can check whether the multimedia equipment is damaged or not by pressing a starting instruction at any time.
Based on the same inventive concept, an embodiment of the invention provides a display device. Referring to fig. 5, fig. 5 is a schematic structural diagram of a display device 50 according to an embodiment of the present invention, where the display device 50 is applied to a multimedia device, and the display device includes:
the monitoring module 51 is configured to monitor whether the multimedia device is connected to a target signal source of a preset type when the multimedia device is in a power-on state;
the first control module 52 is configured to control the multimedia device to display a picture according to the target signal source if it is monitored that the multimedia device accesses the target signal source.
In an alternative embodiment, the display device further comprises:
and the second control module is used for controlling the multimedia equipment to be in a screen-off state if the situation that the multimedia equipment does not access the target signal source is monitored.
In an alternative embodiment, the first control module comprises:
the detection submodule is used for detecting the current display state of the multimedia equipment if the multimedia equipment is monitored to be accessed to the target signal source;
the first control submodule is used for calling a preset API (application program interface) preset in the multimedia equipment and controlling the multimedia equipment to be adjusted from the screen-on state to the screen-on state if the current display state is detected to be the screen-on state;
and the second control submodule is used for controlling the multimedia equipment to display the picture according to the target signal source if the current display state is detected to be a bright screen state.
In an alternative embodiment, the second control module includes:
the second detection submodule is used for detecting the current display state of the multimedia equipment if the situation that the multimedia equipment does not access the target signal source is monitored;
and the third control sub-module is used for calling a preset API (application program interface) preset in the multimedia equipment and controlling the multimedia equipment to be adjusted from the screen-on state to the screen-off state if the current display state is detected to be the screen-on state.
In an optional implementation, the display device further includes:
the determining module is used for determining that the multimedia equipment is in a starting state after the multimedia equipment is detected to execute the preset action.
For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A display method is applied to a multimedia device, and comprises the following steps:
monitoring whether the multimedia equipment is accessed to a target signal source of a preset type or not under the condition that the multimedia equipment is in a starting state;
and if the multimedia equipment is monitored to be accessed to the target signal source, controlling the multimedia equipment to display a picture according to the target signal source.
2. The display method as claimed in claim 1, wherein after the step of monitoring whether the multimedia device is connected to a target signal source of a preset type, the display method further comprises:
and if the situation that the multimedia equipment does not access the target signal source is monitored, controlling the multimedia equipment to be in a screen-off state.
3. The display method of claim 1, wherein the step of controlling the multimedia device to display the picture according to the target signal source if it is monitored that the multimedia device accesses the target signal source comprises:
if the multimedia equipment is monitored to be accessed to the target signal source, detecting the current display state of the multimedia equipment;
if the current display state is detected to be a screen turning state, calling a preset API (application program interface) preset in the multimedia equipment, and controlling the multimedia equipment to be adjusted from the screen turning state to a screen lightening state;
and if the current display state is detected to be a bright screen state, controlling the multimedia equipment to display the picture according to the target signal source.
4. The display method according to claim 2, wherein the step of controlling the multimedia device to be in a screen-saving state if it is monitored that the multimedia device does not access the target signal source comprises:
if the situation that the multimedia equipment does not access the target signal source is monitored, detecting the current display state of the multimedia equipment;
and if the current display state is detected to be the bright screen state, calling a preset API (application program interface) preset in the multimedia equipment, and controlling the multimedia equipment to be adjusted from the bright screen state to the bright screen state.
5. The display method according to any one of claims 1 to 4, wherein before the step of monitoring whether the multimedia device is connected to a target signal source of a preset type, the display method further comprises:
and after the multimedia equipment is detected to finish the preset action, determining that the multimedia equipment is in a starting state.
6. A display device applied to a multimedia apparatus, the display device comprising:
the monitoring module is used for monitoring whether the multimedia equipment is accessed to a target signal source of a preset type or not under the condition that the multimedia equipment is in a starting state;
and the first control module is used for controlling the multimedia equipment to display a picture according to the target signal source if the multimedia equipment is monitored to be accessed to the target signal source.
7. The display device of claim 6, further comprising:
and the second control module is used for controlling the multimedia equipment to be in a screen-off state if the situation that the multimedia equipment does not access the target signal source is monitored.
8. The display device of claim 6, wherein the first control module comprises:
the detection submodule is used for detecting the current display state of the multimedia equipment if the multimedia equipment is monitored to be accessed to the target signal source;
the first control submodule is used for calling a preset API (application program interface) preset in the multimedia equipment and controlling the multimedia equipment to be adjusted from the screen-on state to the screen-on state if the current display state is detected to be the screen-on state;
and the second control submodule is used for controlling the multimedia equipment to display the picture according to the target signal source if the current display state is detected to be a bright screen state.
9. A multimedia device, characterized in that the multimedia device comprises: memory, processor and computer program stored on the memory and running on the processor, which computer program, when executed by the processor, carries out the steps of the display method according to any one of claims 1 to 5.
10. A storage medium, characterized in that the storage medium has stored thereon a computer program which, when being executed by a processor, carries out the steps of the display method according to any one of claims 1 to 5.
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| CN202010977177.2A CN112087583A (en) | 2020-09-16 | 2020-09-16 | Display method, display device, multimedia equipment and storage medium |
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| CN202010977177.2A CN112087583A (en) | 2020-09-16 | 2020-09-16 | Display method, display device, multimedia equipment and storage medium |
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Application publication date: 20201215 |