CN117453171A - Virtual mapping method and device for android system display and virtual mapping system - Google Patents
Virtual mapping method and device for android system display and virtual mapping system Download PDFInfo
- Publication number
- CN117453171A CN117453171A CN202311784289.6A CN202311784289A CN117453171A CN 117453171 A CN117453171 A CN 117453171A CN 202311784289 A CN202311784289 A CN 202311784289A CN 117453171 A CN117453171 A CN 117453171A
- Authority
- CN
- China
- Prior art keywords
- display
- display device
- point
- interface
- detection result
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 69
- 230000005540 biological transmission Effects 0.000 claims abstract description 131
- 238000013507 mapping Methods 0.000 claims abstract description 81
- 238000004891 communication Methods 0.000 claims abstract description 69
- 238000001514 detection method Methods 0.000 claims description 123
- 230000006870 function Effects 0.000 description 11
- 238000012545 processing Methods 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 230000005236 sound signal Effects 0.000 description 6
- 230000000007 visual effect Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
Classifications
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0002—Serial port, e.g. RS232C
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0016—Inter-integrated circuit (I2C)
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- User Interface Of Digital Computer (AREA)
Abstract
The application provides a virtual mapping method, device and system of an android system display, and relates to the technical field of computers. In the method, under a display interface input signal mode, a display interface input signal is converted into a display signal, and a display device is detected based on the display signal to generate a point-to-point mapping file; verifying the point-to-point mapping file; when the mapping conditions are met, encapsulating the point-to-point mapping file to generate a USB virtual interface; detecting the connection state of a USB node of the transmission equipment; when the USB node is in a connection state, communication connection between the transmission equipment and the display device is established based on the USB virtual interface, the mutual communication state between the transmission equipment and the display device is detected, and when the USB node is in the mutual communication state, the mutual control and communication between the transmission equipment and the display device are carried out, so that the cost of reverse control of the display interface of the whole machine is reduced.
Description
Technical Field
The application relates to the technical field of computers, in particular to a virtual mapping method, a virtual mapping device and a virtual mapping system for an android system display.
Background
In the technology of the external display device inverse control transmission device (abbreviated as DP), in order to realize DP control between the transmission device and the external display device, signals transmitted by the transmission device are displayed on a display device of the display device through adjustment and conversion, a touch screen of the display device is controlled according to display content, signals of a display device end are reversely transmitted to the transmission device end, and reverse control is performed on the transmission device. The touch screen control chips of the display device at the display equipment end are all USB interfaces, the number of channels of the touch screen control chips of the USB interfaces is generally large, in order to realize the DP control, a data switch chip is required to be added to switch the USB signal sources of the controller and the transmission equipment when the control of the large-size high-resolution touch screen is realized, however, the price of the data switch chip is high, the touch screen also needs to be matched and customized, and the cost is high.
Disclosure of Invention
The application provides a virtual mapping method, a virtual mapping device and a virtual mapping system of an android system display, which can reduce the cost of reverse control of a chip under the condition of not modifying display logic.
The technical scheme of the embodiment of the application is as follows:
In a first aspect, an embodiment of the present application provides a virtual mapping method of an android system display, which is applied to a virtual mapping device in an external display device, where the external display device further includes a display device, the display device complies with a USB protocol, and the virtual mapping device and the display device pass through an I 2 C interface connection, the method comprising:
under a display interface input signal mode, converting the display interface input signal into a display signal, detecting the display device based on the display signal, and generating a point-to-point mapping file;
verifying the point-to-point mapping file to obtain a first detection result;
when the first detection result is that the mapping condition is met, the point-to-point mapping file is packaged, and a USB virtual interface is generated, wherein the USB virtual interface is used for communicating with the display device;
detecting the connection state of a USB node of preset transmission equipment to obtain a second detection result;
when the second detection result is that the USB node is in a connection state, based on the USB virtual interface, establishing communication connection between the transmission equipment and the display device, detecting the mutual communication state between the transmission equipment and the display device, and obtaining a third detection result, wherein the transmission equipment and the virtual mapping device are connected through a Type-C interface;
And in the case that the third detection result is in a mutual communication state, performing mutual control and communication between the transmission device and the display device.
In the technical scheme, firstly, in a display interface input signal mode, data signals are indicated to be displayed on a display device, the display interface input signals are firstly converted into display signals, the display device is detected based on the display signals, and point-to-point mapping files are generated so as to correspond to the display devices one by one for subsequent display; verifying the point-to-point mapping file to obtain a first detection result; under the condition that the first detection result meets the mapping condition, the point-to-point mapping file is encapsulated to generate a USB virtual interface, the USB virtual interface is used for communicating with the display device, and in the prior art, the display device is connected through the USB interface matched with the data switch chip, and the embodiment of the application is realized through I 2 The interface C is connected and generates a USB virtual interface so as to meet the requirement of information transmission with an interface of the display device and reduce the cost caused by adopting a data switch chip; detecting the connection state of the USB node of the transmission equipment to obtain a second detection result; under the condition that the second detection result is that the USB node is in a connection state, based on a USB virtual interface, establishing communication connection between transmission equipment and a display device, and detecting the mutual communication state between the transmission equipment and the display device to obtain a third detection result; and under the condition that the third detection result is in a mutual communication state, the mutual control and communication between the transmission equipment and the display device are performed, and through the logic control, the cost of the chip reverse control can be reduced by combining the software control logic with hardware.
In some embodiments of the present application, the detecting the display device based on the display signal, generating a point-to-point mapping file includes:
detecting the screen resolution of the display device according to the display signal to obtain the display resolution;
and under the condition that the display device is detected to be in a controlled state, generating the point-to-point mapping file according to the display resolution.
In the technical scheme, the screen resolution of the display device is detected to obtain the display resolution, the external display device is the slave device of the transmission device when the display device is detected to be in a controlled state, the content in the transmission device is displayed, the point-to-point mapping file is generated according to the display resolution, the one-to-one correspondence between the screen resolution and the display resolution is realized, the enlarged display is facilitated, and the visual viewing effect is improved.
In some embodiments of the present application, after the verifying the point-to-point mapping file to obtain the first detection result, the method further includes:
executing the step of detecting the display device based on the display signal to generate a point-to-point mapping file when the first detection result is that the mapping condition is not met;
After the detection of the preset first time number, the first detection result is that the mapping condition is not met, and first alarm information is sent out, wherein the first alarm information is that the mapping condition is not met.
In the above technical solution, under the condition that the mapping condition is not met, the display device is again detected, a point-to-point mapping file is generated, after the first detection and verification of the preset number, the mapping condition is still not met, and the alarm information which is not met with the mapping condition is sent out, so that the operator can perform line detection, and correct display and control can be performed.
In some embodiments of the present application, after the detecting the mutual communication state between the transmission device and the display apparatus, the method further includes:
executing the step of detecting the connection state of the preset USB node of the transmission equipment to obtain a second detection result under the condition that the third detection result is in a non-mutual communication state;
and after the detection of the preset second times, sending out second alarm information under the condition that the third detection result is in a non-mutual communication state, wherein the second alarm information is a communication transmission line fault.
In the above technical solution, when the third detection result is a non-inter-communication state, the connection state of the USB node of the transmission device is detected again to obtain the second detection result, and after the second detection is performed for a preset number of times, the connection state is still the non-inter-communication state, and the alarm information of the communication transmission line fault is sent out, so that the operator performs line detection, so that the connection state can be correctly displayed and controlled.
In some embodiments of the present application, after detecting the connection state of the USB node of the preset transmission device, to obtain the second detection result, the method further includes:
and under the condition that the second detection result is that the USB node is in a non-connection state, sending out third alarm information, wherein the third alarm information is not connected with the transmission equipment.
In the above technical solution, when the second detection result is that the USB node is in the non-connection state, it indicates that the transmission device is not connected, and sends out an alarm message that the transmission device is not connected, so that an operator performs line detection, so that correct display and control can be performed.
In some embodiments of the present application, in a mode in which a signal is not input for the display interface, the method further comprises:
And controlling the display device to be in an uncontrolled state.
In the above technical solution, since the Type-C interface includes multiple types of data, in a mode of not inputting signals to the display interface, it indicates that display by the display device is not needed, the control display device is in an uncontrolled state, and the external display device serves as a main device, which indicates that the transmission device and the external display device work respectively.
In a second aspect, an embodiment of the present application provides a virtual mapping apparatus of an android system display, which is applied to an external display device, where the external display device further includes a display apparatus, the display apparatus conforms to a USB protocol, the apparatus includes a controller, a first interface of the controller is connected to a preset transmission device, and an output end of the controller is connected to the display apparatus through a first interface of the controller I2 The controller is used for receiving touch control information transmitted by the display device and sending the touch control information to the transmission equipment through a second interface of the controller;
the controller comprises a processor and a memory, wherein the processor and the memory are respectively connected with the communication bus, the memory is used for storing instructions, and the processor is used for executing the instructions stored in the memory so as to enable the processor to execute the method according to any one of the first aspect.
In some embodiments of the present application, the controller is an a527 control chip, the a527 control chip having an I 2 And the interface C is connected with the display device.
In a third aspect, an embodiment of the present application provides a virtual mapping system, where the system includes a virtual mapping device of the android system display according to the second aspect.
In a fourth aspect, embodiments of the present application provide a computer-readable storage medium storing instructions that, when executed, perform the method of any one of the first aspects provided above.
In summary, one or more technical solutions provided in the embodiments of the present application at least have the following technical effects or advantages:
1. the technical means of converting the display interface input signal into the display signal under the display interface input signal mode and detecting the display device to generate the USB virtual interface, thereby realizing the control of the transmission equipment on the display device and the counter control of the transmission equipment by the display device is adopted, so that the problem of the counter control of the transmission equipment is effectively solvedThe problem that the price of a data switch chip in the related art is high, the touch screen is required to be matched and customized, and the cost is high is solved. Since the Type-C interface comprises the transmission signals of the USB protocol and the touch screen control chip is all USB interface, the virtual mapping device and the display device pass through I 2 And the interface C is connected and combines the control logic of the method to realize the DP reverse control, and a data switch chip is not required to control, so that the cost can be reduced.
2. The method can be used for expanding the small screen to a large screen of an external display, and has better visual experience.
3. The display device is connected with the I2C interface instead of the USB interface, the connection mode is not limited by the USB interface, the data switch chip is reduced, and the cost is reduced.
Drawings
FIG. 1 is a schematic illustration of the prior art provided by one embodiment of the present application;
FIG. 2 is a flow chart of a method for virtual mapping of android system displays, according to one embodiment of the present application;
FIG. 3 is a schematic flow chart showing a sub-step of step S110 in FIG. 2;
FIG. 4 is a flow chart of a method for virtual mapping of android system displays, according to another embodiment of the present application;
FIG. 5 is a flow chart of a method for virtual mapping of an android system display, according to yet another embodiment of the present application;
FIG. 6 is an overall flow diagram of a virtual mapping method for an android system display, according to one embodiment of the present application;
fig. 7 is a schematic structural diagram of a virtual mapping device of an android system display according to an embodiment of the present application.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present specification, the technical solutions in the embodiments of the present specification will be clearly and completely described below with reference to the drawings in the embodiments of the present specification, and it is obvious that the described embodiments are only some embodiments of the present application, but not all embodiments.
In the description of embodiments of the present application, words such as "for example" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described herein as "such as" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "or" for example "is intended to present related concepts in a concrete fashion.
In the description of the embodiments of the present application, the term "plurality" means two or more. For example, a plurality of systems means two or more systems, and a plurality of screen terminals means two or more screen terminals. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating an indicated technical feature. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.
In the related art, in the technology of a reverse control transmission device (DP for short) of a display device, the touch screen control chip at the display device end is a USB interface, the number of channels of the touch screen control chip of the USB interface is generally large, when the control of a large-size high-resolution touch screen is realized, a data switch chip is required to be added to switch the USB signal sources of the controller and the transmission device, however, the price of the data switch chip is generally higher, and the touch screen is required to be customized in a matching way, so that the cost is higher. As shown in fig. 1, the Type-C interface of the transmission device is connected with the controller, and the conversion control module of the controller converts the input signal of the display interface into the display signal, and transmits the display signal to the switch chip through the USB2.0 interface, and the display signal is controlled by the data switch chip and displayed on the external device. The data switch chip is connected with the transmission device, the external device is provided with a touch screen, and the transmission device can be reversely controlled through the data switch chip according to the operation on the touch screen. In the scheme, the data switch chip is high in cost, the touch screen is matched with the data switch chip for customization, and the cost is high.
Based on this, the embodiments of the present application provide a virtual mapping method, apparatus and virtual mapping system for an android system display, where the virtual mapping method for an android system display is applied to a virtual mapping apparatus in an external display device, and the external display device further includes a display apparatus, where the display apparatus complies with a USB protocol, and the virtual mapping apparatus and the display apparatus pass through I 2 The method comprises the steps that C, interface connection and virtual mapping of the android system display are carried out, firstly, in the mode of displaying interface input signals, data signals are indicated to be displayed on a display device, firstly, the display interface input signals are converted into display signals, the display device is detected based on the display signals, and point-to-point mapping files are generated so as to correspond to the display devices one by one, so that subsequent display can be carried out; verifying the point-to-point mapping file to obtain a first detection result; under the condition that the first detection result meets the mapping condition, encapsulating the point-to-point mapping file to generate a USB virtual interface, wherein the USB virtual interface is used for communicating with the display device so as to meet the requirement of information transmission with the interface of the display device; detecting the connection state of the USB node of the transmission equipment to obtain a second detection result; under the condition that the second detection result is that the USB node is in a connection state, based on the USB virtual interface, establishing communication connection between the transmission equipment and the display device, and detecting the mutual communication state between the transmission equipment and the display device to obtain a third detection result; and under the condition that the third detection result is in the mutual communication state, the mutual control and communication between the transmission equipment and the display device are performed, and the cost of the chip reverse control can be reduced by combining the software control logic with hardware through the logic control. Compared with the high cost of adopting a switch control chip in the prior art, the embodiment of the application has the advantages that the virtual mapping device and the display device pass through I 2 And the interface C is connected and combines the control logic of the method to realize the DP reverse control, and a data switch chip is not required to control, so that the cost can be reduced.
It should be noted that, the virtual mapping method of the android system display is applied to the virtual mapping system, the virtual mapping device of the android system display is configured on the external display device, the transmission device, the virtual mapping device of the android system display and the display device form the virtual mapping system, so that the mobile phone end is connected with the external display device, and the mobile phone end is expanded from the small screen to the large screen of the external display, thereby having better visual experience. And the cost is reduced by combining the algorithm logic and the hardware.
The technical scheme provided by the embodiment of the application is further described below with reference to the accompanying drawings.
Referring to fig. 2, fig. 2 is a flowchart of a virtual mapping method of an android system display according to an embodiment of the present application. The virtual mapping method of the android system display is applied to a virtual mapping device applied to external display equipment, the external display equipment further comprises a display device, the display device follows the USB protocol, and the virtual mapping device and the display device pass through I 2 C interface connection, transmission equipment and virtual mapping device pass through Type-C interface connection, use I 2 And the interface C is combined with software control logic, so that the use of a data switch chip can be omitted, and the cost is reduced. Executing the virtual mapping method of the android system display by a processor of the virtual mapping device of the android system display or a processor in a readable storage medium, wherein the virtual mapping method of the android system display corresponding to the software control logic comprises the steps of S110, S120, S130, S140, S150 and S160.
Step S110, under the mode of the input signal of the display interface, the input signal of the display interface is converted into a display signal, and the display device is detected based on the display signal to generate a point-to-point mapping file; .
In an embodiment, the preset transmission device may be a mobile phone with an android system or a mobile phone with other systems, where the transmission device is connected to the virtual mapping device through a Type-C interface, and the Type-C interface includes a set of USB2.0 signals, 4 sets of 4 lines of differential data signals, a set of CC logic signal sets, and an AUX audio signal. A set of USB2.0 signals for connecting the display device and the virtual mapping means; the differential data signals of 4 groups and 4 lines are used for supporting high-speed transmission; the CC logic signal is used for detecting the states of interface insertion and power supply and can be used for determining the type of the charger, the supported power and other information; the AUX audio signal is used to transmit audio signals, which may be connected to an external audio device. And under the mode of inputting signals to the display interface, converting the data signals into display signals by using a control chip of the controller. The control chip can also be used for receiving the data signal of the transmission equipment, namely receiving the data signal transmitted by the Type-C interface of the mobile phone, identifying and detecting the data signal, mainly detecting whether the Type-C interface is an input port of the display interface, and converting the input signal of the display interface into the display signal by using a preset conversion chip under the condition that the data signal is the input signal of the display interface so as to facilitate the subsequent display on external display. The preset conversion chip is a chip of LT7911D model.
In another embodiment, the preset control chip detects the display device based on the display signal to generate the point-to-point mapping file. Wherein, the preset control chip is an A527 control chip. It should be noted that, a preset control chip may be used to convert the input signal of the display interface into the display signal, and the function of the conversion chip is integrated in the control chip, where the control chip is connected with the transmission device and the display device respectively. The display device may be an external display LCD device, a capacitive touch screen, or other large-screen display devices, which will not be described herein.
As shown in fig. 3, the display device is detected based on the display signal to generate a point-to-point mapping file, including but not limited to the following steps:
step S111, detecting the screen resolution of the display device according to the display signal, to obtain the display resolution.
In some possible embodiments of the present application, according to the display signal, the screen resolution of the display device is first detected, and the size of the screen is determined for mapping. Specifically, the control chip is connected with the display device, the screen resolution of the display device is detected, a virtual display with the same resolution as the current screen resolution is mapped according to the screen resolution, and the equal-proportion display mapping is carried out, so that the display resolution is obtained. The method is beneficial to generating the point-to-point mapping file according to the corresponding relation between the display resolution and the screen resolution.
In step S112, when the display device is detected to be in a controlled state, a point-to-point mapping file is generated according to the display resolution.
In some possible embodiments of the present application, since the display apparatus needs to be in a controlled state to display the content of the data signal related to the transmission device on the display apparatus, that is, the transmission device serves as a master device, and the external display device serves as a slave device, so as to display the content in the transmission device on a large screen, thereby increasing the visual viewing effect. It is then necessary to detect the state of the display device to see whether the controlled state is satisfied so that the display device can be controlled to display. Under the condition that the display device is detected to be in a controlled state, the display device is controlled by the control chip, the display resolution is obtained according to the step S111, the display signals are mapped according to the display resolution, namely, the display signals are displayed in equal proportion, the display device can be paved, the one-to-one correspondence between the display resolution and the screen resolution is realized, and the point-to-point mapping file is generated, so that the content of related data signals can be successfully displayed on the display device. The point-to-point mapping file comprises a one-to-one correspondence of each point of screen resolution and display resolution, and whether the correspondence is accurate.
Step S120, checking the point-to-point mapping file to obtain a first detection result.
In one embodiment, the verification of the generated point-to-point mapping file is specifically: and detecting the corresponding relation between the screen resolution and the display resolution one by one to obtain a first detection result. The USB virtual interface is generated according to the first detection result.
In step S130, if the first detection result is that the mapping condition is met, the point-to-point mapping file is encapsulated, and a USB virtual interface is generated, where the USB virtual interface is used to communicate with the display device.
In one embodiment, the mapping condition is that all points of the display resolution and the screen resolution are uniformly and correspondingly matched, and the corresponding relation is correct. Since the display device follows the USB protocol, the virtual mapping device and the display device pass through I 2 And C, connecting the interfaces, and then packaging the point-to-point mapping file to obtain the USB virtual interface under the condition that the first detection result is that all points of the display resolution and the screen resolution are uniform and corresponding and the corresponding relation is correct. The display device is packaged into a USB virtual interface form, so that information transmission with a display device can be met, display connection of a traditional USB interface can be broken, and display information transmission in different interface forms is realized. And the packaging processing is carried out through a converter integrated in the A527 control chip, so that the USB virtual interface is obtained.
Step S140, detecting a connection state of the USB node of the preset transmission device, to obtain a second detection result.
In an embodiment, according to the USB virtual interface generated in step S130, the display signal may be displayed in the display device, and in order to ensure the display of the data signal, it is required to detect the connection state of the USB node of the transmission device, that is, detect whether the transmission device is connected, to obtain the second detection result, and by detecting the connection state of the USB node on the transmission device side, it may be ensured that the display content of the mobile phone is displayed through the display device. The method includes the steps that an USB node of the mobile phone is detected, the mobile phone is connected through a Type-C interface, whether the mobile phone end is in a connection state or not is judged according to CC logic in the Type-C interface, a second detection result is obtained, and reverse control operation of the mobile phone end is facilitated to be achieved subsequently.
And step S150, when the second detection result is that the USB node is in the connection state, based on the USB virtual interface, establishing communication connection between the transmission equipment and the display device, and detecting the mutual communication state between the transmission equipment and the display device to obtain a third detection result.
In an embodiment, when the second detection result is that the USB node is in the connected state, a communication connection between the transmission device and the display apparatus is established based on the USB virtual interface generated in step S130. The connection state is that the transmission device is connected with a controller of the virtual mapping device, the controller of the virtual mapping device is connected with the display device, and the virtual mapping device is arranged on the external display device. By detecting the connection state, the related content of the transmission equipment can be displayed on the display device, so that the small screen can be expanded to a large screen of an external display, and better visual experience is realized.
In another embodiment, the mutual communication state is that the mobile phone end transmits information to be displayed to the display device for display, and the information received by the touch screen of the display device is reversely transmitted to the mobile phone end for reverse control. And detecting the mutual communication state between the transmission equipment and the display device through the A527 control chip to obtain a third detection result. The control of the mobile phone end to the display device can be realized by judging the mutual communication state, and the reverse control of the display device to the mobile phone end can also be realized.
Step S160, in the case where the third detection result is in the mutual communication state, performing mutual control and communication between the transmission apparatus and the display device.
In an embodiment, in the case that the third detection result is in the mutual communication state, it indicates that the connection between the transmission device and the display apparatus is normal, and mutual control and communication between the transmission device and the display apparatus are performed.
As shown in fig. 4, after verifying the point-to-point mapping file to obtain the first detection result, the virtual mapping method of the android system display further includes, but is not limited to, the following steps:
in step S210, if the first detection result is that the mapping condition is not satisfied, a step of detecting the display device based on the display signal to generate a point-to-point mapping file is performed.
In some possible embodiments of the present application, when the first detection result is that the mapping condition is not met, that is, it is indicated that there is some points of the display resolution and the screen resolution that do not have a one-to-one correspondence, or that each point of the display resolution and the screen resolution has a one-to-one correspondence, but the correspondence is incorrect, detecting the screen resolution of the display device according to the display signal, and determining the size of the screen to map. Specifically, the control chip is connected with the display device, detects the screen resolution of the display device, and maps out a virtual display with the same resolution as the current screen resolution according to the screen resolution to obtain the display resolution. The method is beneficial to generating the point-to-point mapping file according to the corresponding relation between the virtual touch screen and the screen resolution. And then checking the generated point-to-point mapping file, and detecting and checking the corresponding relation between the screen resolution and the display resolution one by one to obtain a first detection result, so that the USB virtual interface can be generated according to the first detection result. And when the first detection result is that all points of the display resolution and the screen resolution are uniform and correspond to each other and the corresponding relation is correct, the point-to-point mapping file is packaged, and the USB virtual interface is obtained. The display device is packaged into a USB virtual interface form, so that information transmission with the display device can be met, and display connection of a traditional USB interface can be broken. And the step of generating the point-to-point mapping file is executed again, and verification is carried out, so that error processing is avoided.
Step S220, after the detection of the preset first times, the first detection result is that the mapping condition is not met, and the first alarm information is sent out, wherein the first alarm information is that the mapping condition is not met.
In some possible embodiments of the present application, the preset first number of times may be 3 times, 4 times, 5 times, etc., and are set according to the needs, which is not described herein. After the preset first number, according to the detection performed in step S210, the first detection result still does not conform to the mapping condition, which indicates that there is no false detection, and that there is a possibility of incorrect operation occurring in the signal conversion process, the first alarm information is sent to prompt that the mapping condition is not met, so that the operator can perform line detection, and correct display and control can be performed.
In other possible embodiments of the present application, after the first detection, in the preset first number, if the first detection result is that the mapping condition is met, it indicates that the first detection may be wrong, and the generated point-to-point mapping file has a corresponding relationship and the corresponding relationship is accurate. The first detection result is not in accordance with the mapping condition, the display device is detected again based on the display signal, a point-to-point mapping file is generated, the point-to-point mapping file is checked, the first detection result is in accordance with the mapping condition, and the first detection result indicates that the corresponding relationship on a large screen extending from a small screen to an external display is correct, and the display can be performed.
As shown in fig. 5, after detecting the intercommunication status between the transmission device and the display device and obtaining the third detection result, the virtual mapping method of the android system display further includes, but is not limited to, the following steps:
in step S310, if the third detection result is the non-inter-communication state, a step of detecting the connection state of the USB node of the preset transmission device to obtain a second detection result is performed.
In some possible embodiments of the present application, in the case that the third detection result is in a non-mutual communication state, it indicates that there is no connection between the transmission device and the controller, or that there is a communication blockage, so it is required to detect the connection state of the USB node of the transmission device, that is, detect whether the transmission device is connected, so as to exclude the failure of communication caused by the connection of the USB node, and obtain the second detection result, which is favorable for determining whether to interrupt the display process.
Step S320, after the detection of the preset second times, sending out second alarm information under the condition that the third detection result is in a non-mutual communication state, wherein the second alarm information is a communication transmission line fault.
In some possible embodiments of the present application, the preset second number of times may be 3 times, 4 times, 5 times, etc., which are set according to the needs, and will not be described herein. After the preset second times, according to the detection performed in step S310, in the case that the third detection result is still in the non-mutual communication state, it indicates that the transmission equipment end is not connected, and sends out the second alarm information to prompt the communication transmission line to fail, or the transmission equipment end is not connected, so that the operator performs line detection, so as to enable correct display and control.
In other possible embodiments of the present application, after the first detection, in the case that the third detection result is the intercommunication state, the first detection may be wrong, or the operator detects the first detection, so that the error is corrected, and the intercommunication can be achieved. The second time is exemplified by three times, after the first detection, the third detection result is a non-mutual communication state, the connection state of the USB node of the transmission device is detected again, and the third detection result is obtained, and the third detection result is a mutual communication state, which indicates that the communication can be performed to realize information display or reverse control.
In an embodiment, after detecting the connection state of the USB node of the preset transmission device and obtaining the second detection result, the virtual mapping method of the android system display further includes, but is not limited to: and under the condition that the second detection result is that the USB node is in a non-connection state, the fact that the transmission equipment end is not connected is indicated when the transmission equipment end detection is carried out initially, and third alarm information is sent out, wherein the third alarm information is not connected with the transmission equipment, so that an operator can carry out line detection, and correct display and control can be achieved.
In an embodiment, the virtual mapping method of the android system display in the mode of inputting signals for the display interface further includes, but is not limited to, the following steps: the data types transmitted in the Type-C interface are various, and in the mode that the data types are not input for the display interface, the transmission equipment is indicated not to display the content through the display device, and communication connection of the display device is not needed, at this time, the external display equipment is used as a main equipment, namely, the external display equipment displays the content in the external equipment on the screen of the mobile phone terminal, and various display modes are realized.
As shown in fig. 6, an overall flow chart of a virtual mapping method of an android system display provided in an embodiment of the present application is that a virtual mapping device and a display device pass through I 2 C interface connection, transmission equipment and virtualThe mapping device is connected through a Type-C interface, when receiving a data signal transmitted by the Type-C interface of the transmission equipment, the CC logic is used for identifying and detecting the data signal, mainly detecting whether the data signal is an input port signal of the display interface, and when the data signal is the input signal of the display interface, the preset conversion chip is used for converting the input signal of the display interface into a display signal so as to facilitate the subsequent display on external display. Because the virtual mapping device is connected with the display device, the screen resolution of the display device is detected first, and a virtual display with the same resolution as the current screen resolution is mapped according to the screen resolution, so that the display resolution is obtained. The method is beneficial to generating the point-to-point mapping file according to the corresponding relation between the virtual touch screen and the screen resolution.
Since the state of the display device is a controlled state, that is, the slave device, the content of the related data signal is controlled to be displayed on the display device, the state of the display device needs to be detected to see whether the controlled state is satisfied, so that the display device can be controlled to display. Under the condition that the display device is detected to be in a controlled state, the display device is indicated to be controlled in display, the display signals are mapped according to the display resolution, namely, the display signals are displayed in equal proportion, the screen of the display device can be paved, the one-to-one correspondence between the display resolution and the screen resolution is realized, and the point-to-point mapping file is generated, so that the content of related data signals can be successfully displayed on the display device.
Detecting the corresponding relation between the screen resolution and the display resolution one by one again to ensure that the mapping relation is correct and obtain a first detection result; and under the condition that the first detection result does not meet the mapping condition, namely, the fact that some points of the display resolution and the screen resolution have one-to-one correspondence relationship is not shown, or each point of the display resolution and the screen resolution have one-to-one correspondence relationship, but the correspondence relationship is incorrect, detecting the display device according to the display signal, and generating the point-to-point mapping file is executed again. After the preset first time number, according to the detection, the first detection result still does not accord with the mapping condition, which indicates that there is no false detection, and error operation possibly occurs in the signal conversion process, and sends out first alarm information to prompt that the mapping condition is not met, so that an operator can perform line detection, and correct display and control can be realized.
And when the first detection result is that all points of the display resolution and the screen resolution are uniform and correspond to each other and the corresponding relation is correct, the point-to-point mapping file is packaged, and the USB virtual interface is obtained. The display device is packaged into a USB virtual interface form, so that information transmission with a display device can be met, display connection of a traditional USB interface can be broken, and display information transmission in different interface forms is realized. And detecting the connection state of the USB node of the transmission equipment, namely detecting whether the transmission equipment is connected or not, and obtaining a second detection result. And under the condition that the second detection result is that the USB node is in a non-connection state, the fact that the transmission equipment end is not connected is indicated when the transmission equipment end detection is carried out initially, and third alarm information is sent out, wherein the third alarm information is that the transmission equipment is not connected, so that an operator can carry out line detection, and correct display and control can be achieved.
And under the condition that the second detection result is that the USB node is in a connection state, establishing communication connection between the transmission equipment and the display device based on the generated USB virtual interface. And detecting the mutual communication state between the transmission equipment and the display device through the A527 control chip to obtain a third detection result. And under the condition that the third detection result is in the mutual communication state, indicating that the connection between the transmission equipment and the display device is normal, and performing mutual control and communication between the transmission equipment and the display device.
And under the condition that the third detection result is in a non-mutual communication state, the fact that the transmission equipment is not connected with the controller is indicated, and then the connection state of the USB node of the transmission equipment is required to be detected, namely whether the transmission equipment is connected or not is detected, so that the second detection result is obtained, and the follow-up determination of whether the display process is interrupted or not is facilitated. And after the preset second times, under the condition that the third detection result is still in a non-mutual communication state, indicating that the transmission equipment ends are not connected, sending out second alarm information to prompt the communication transmission line to fail or the transmission equipment ends are not connected, so that an operator can perform line detection to enable correct display and control.
Referring to fig. 7, fig. 7 is a schematic diagram of a virtual mapping apparatus of an android system display according to an embodiment of the present application. The virtual mapping device of the android system display is applied to external display equipment, the external display equipment further comprises a display device, the display device follows a USB protocol, the virtual mapping device of the android system display comprises a controller, a first interface of the controller is connected with preset transmission equipment and is used for receiving data signals transmitted by an interface of the transmission equipment, the transmission equipment can be a mobile phone with an android system or other systems and is provided with a Type-C interface, the Type-C interface contains a group of signals of USB2.0, 4 groups of differential data signals of 4 lines, a group of CC logic signal groups and AUX audio signals. A set of USB2.0 signals for connecting the virtual mapping device and the transmission equipment; the differential data signals of 4 groups and 4 lines are used for supporting high-speed transmission; the CC logic signal is used for detecting the states of interface insertion and power supply and can be used for determining the type of the charger, the supported power and other information; the AUX audio signal is used to transmit audio signals, which may be connected to an external audio device. And receiving the transmitted data signals, and converting the data signals into display signals by using a control chip of the controller. The output end of the controller and the display device pass through I 2 And the controller is used for receiving touch control information transmitted by the display device and sending the touch control information to the transmission equipment through a second interface of the controller.
In an embodiment, the controller includes a processor and a memory, the processor and the memory are respectively connected with the communication bus, the memory is used for storing instructions, and the processor is used for executing the instructions stored in the memory, so that the processor executes a virtual mapping method of the android system display. Wherein the communication bus is used to enable connection communication between these components.
In one embodiment, the controller is an A527 control chip, I of the A527 control chip 2 The C interface is connected with the display device instead of adopting the prior art and numberAccording to the USB interface connection matched with the switch chip, the cost can be reduced. The A527 control chip is provided with rich interfaces and functional modules and is used for connecting and controlling various external devices. The device can flexibly exchange data with other devices, realize wider application scenes and function expansion, and realize I 2 The touch chip of the C interface reversely controls the functions of the mobile phone, and has low cost and less cost.
In an embodiment, the virtual mapping device of the android system display further comprises a power amplification module, and the power amplification module is connected with the controller and used for adjusting audio and video display.
In an embodiment, the embodiment of the application further provides a virtual mapping system, where the virtual mapping system includes a virtual mapping device of an android system display, a transmission device and a display device, the virtual mapping device of the android system display includes a controller, a first interface of the controller is connected with a preset transmission device and is used for receiving a data signal transmitted by an interface of the transmission device, the transmission device may be a mobile phone with the android system or a mobile phone with other systems, and a control chip of the controller is used to convert the data signal into a display signal. The output interface of the controller is connected with a preset display device and is used for performing display control on the display device, receiving touch control information of the display device and sending the touch control information to the transmission equipment through the second interface of the controller.
Also to be described is: in the device provided in the above embodiment, when implementing the functions thereof, only the division of the above functional modules is used as an example, in practical application, the above functional allocation may be implemented by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules, so as to implement all or part of the functions described above. In addition, the embodiments of the apparatus and the method provided in the foregoing embodiments belong to the same concept, and specific implementation processes of the embodiments of the method are detailed in the method embodiments, which are not repeated herein.
Wherein the processor may include one or more processing cores. The processor uses various interfaces and lines to connect various portions of the overall server, perform various functions of the server, and process data by executing or executing instructions, programs, code sets, or instruction sets stored in memory, and invoking data stored in memory. Alternatively, the processor may be implemented in hardware in at least one of digital signal processing (Digital Signal Processing, DSP), field programmable gate array (Field-Programmable Gate Array, FPGA), programmable logic array (Programmable Logic Array, PLA). The processor may integrate one or a combination of several of a central processing unit (Central Processing Unit, CPU), an image processor (Graphics Processing Unit, GPU), and a modem etc. The CPU mainly processes an operating system, a user interface, an application program and the like; the GPU is used for rendering and drawing the content required to be displayed by the display screen; the modem is used to handle wireless communications. It will be appreciated that the modem may not be integrated into the processor and may be implemented by a single chip.
The Memory may include a random access Memory (Random Access Memory, RAM) or a Read-Only Memory (Read-Only Memory). Optionally, the memory includes a non-transitory computer readable storage medium (non-transitory computer-readable storage medium). The memory may be used to store instructions, programs, code sets, or instruction sets. The memory may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing the above-described respective method embodiments, etc.; the storage data area may store data or the like involved in the above respective method embodiments. The memory may optionally also be at least one storage device located remotely from the aforementioned processor. An operating system, a network communication module, and an application program of a virtual mapping method of an android system display may be included in a memory as a computer storage medium.
The processor may be used to invoke an application in the memory that stores a virtual mapping method for the android system display, which when executed by the one or more processors, causes the controller to perform the method as in one or more of the embodiments described above. It should be noted that, for simplicity of description, the foregoing method embodiments are all expressed as a series of action combinations, but it should be understood by those skilled in the art that the present application is not limited by the order of actions described, as some steps may be performed in other order or simultaneously in accordance with the present application. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required in the present application.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
In the several embodiments provided herein, it should be understood that the disclosed apparatus may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, such as a division of units, merely a division of logic functions, and there may be additional divisions in actual implementation, such as multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some service interface, device or unit indirect coupling or communication connection, electrical or otherwise.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable memory. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a memory, including several instructions for causing a computer device (which may be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the methods of the embodiments of the present application. And the aforementioned memory includes: various media capable of storing program codes, such as a U disk, a mobile hard disk, a magnetic disk or an optical disk.
The above are merely exemplary embodiments of the present disclosure and are not intended to limit the scope of the present disclosure. That is, equivalent changes and modifications are contemplated by the teachings of this disclosure, which fall within the scope of the present disclosure. Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure.
This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a scope and spirit of the disclosure being indicated by the claims.
Claims (10)
1. A virtual mapping method of a android system display, characterized by being applied to a virtual mapping device in an external display device, wherein the external display device further comprises a display device, the display device follows a USB protocol, and the virtual mapping device and the display device pass through I 2 C interface connection, the method comprising:
under a display interface input signal mode, converting the display interface input signal into a display signal, detecting the display device based on the display signal, and generating a point-to-point mapping file;
verifying the point-to-point mapping file to obtain a first detection result;
when the first detection result is that the mapping condition is met, the point-to-point mapping file is packaged, and a USB virtual interface is generated, wherein the USB virtual interface is used for communicating with the display device;
Detecting the connection state of a USB node of preset transmission equipment to obtain a second detection result;
when the second detection result is that the USB node is in a connection state, based on the USB virtual interface, establishing communication connection between the transmission equipment and the display device, detecting the mutual communication state between the transmission equipment and the display device, and obtaining a third detection result, wherein the transmission equipment and the virtual mapping device are connected through a Type-C interface;
and in the case that the third detection result is in a mutual communication state, performing mutual control and communication between the transmission device and the display device.
2. The method of claim 1, wherein detecting the display device based on the display signal generates a point-to-point mapping file, comprising:
detecting the screen resolution of the display device according to the display signal to obtain the display resolution;
and under the condition that the display device is detected to be in a controlled state, generating the point-to-point mapping file according to the display resolution.
3. The method of claim 1, wherein after the verifying the point-to-point mapping file to obtain the first detection result, the method further comprises:
Executing the step of detecting the display device based on the display signal to generate a point-to-point mapping file when the first detection result is that the mapping condition is not met;
after the detection of the preset first time number, the first detection result is that the mapping condition is not met, and first alarm information is sent out, wherein the first alarm information is that the mapping condition is not met.
4. The method according to claim 1, wherein after detecting the mutual communication state between the transmission device and the display apparatus, the method further comprises:
executing the step of detecting the connection state of the preset USB node of the transmission equipment to obtain a second detection result under the condition that the third detection result is in a non-mutual communication state;
and after the detection of the preset second times, sending out second alarm information under the condition that the third detection result is in a non-mutual communication state, wherein the second alarm information is a communication transmission line fault.
5. The method according to claim 1, wherein after detecting the connection state of the USB node of the preset transmission device, the method further includes:
And under the condition that the second detection result is that the USB node is in a non-connection state, sending out third alarm information, wherein the third alarm information is not connected with the transmission equipment.
6. The method of claim 1, wherein in a mode in which signals are not input for the display interface, the method further comprises:
and controlling the display device to be in an uncontrolled state.
7. A virtual mapping apparatus for an android system display, applied to an external display device, said external display deviceThe display device also comprises a display device, the display device follows the USB protocol, the device comprises a controller, a first interface of the controller is connected with a preset transmission device, and an output end of the controller is connected with the display device through I 2 The controller is used for receiving touch control information transmitted by the display device and sending the touch control information to the transmission equipment through a second interface of the controller;
the controller comprises a processor and a memory, wherein the processor and the memory are respectively connected with the communication bus, the memory is used for storing instructions, and the processor is used for executing the instructions stored in the memory so as to enable the processor to execute the method as claimed in any one of claims 1-6.
8. The device of claim 7, wherein the controller is an a527 control chip, the a527 control chip having an I 2 And the interface C is connected with the display device.
9. A virtual mapping system, characterized in that the system comprises a virtual mapping means of an android system display according to claim 7 or 8.
10. A computer readable storage medium storing instructions which, when executed, perform the method of any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311784289.6A CN117453171A (en) | 2023-12-23 | 2023-12-23 | Virtual mapping method and device for android system display and virtual mapping system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311784289.6A CN117453171A (en) | 2023-12-23 | 2023-12-23 | Virtual mapping method and device for android system display and virtual mapping system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117453171A true CN117453171A (en) | 2024-01-26 |
Family
ID=89585984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311784289.6A Pending CN117453171A (en) | 2023-12-23 | 2023-12-23 | Virtual mapping method and device for android system display and virtual mapping system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117453171A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103312718A (en) * | 2013-06-25 | 2013-09-18 | 龙迅半导体科技(合肥)有限公司 | Device control method and device and multimedia equipment |
| CN105045548A (en) * | 2015-06-16 | 2015-11-11 | 广州视睿电子科技有限公司 | Wireless screen transmission method, extension device and wireless screen transmission system |
| CN107168666A (en) * | 2017-04-21 | 2017-09-15 | 陈景雄 | The system and method for USB interface-based audio video transmission and multi-screen mapping |
| CN107948567A (en) * | 2016-10-12 | 2018-04-20 | 广州视源电子科技股份有限公司 | The method and device of the wired biography screens of USB |
| CN115437542A (en) * | 2022-08-31 | 2022-12-06 | 海信视像科技股份有限公司 | Display device and screen projection inverse control method |
| CN115878537A (en) * | 2022-11-28 | 2023-03-31 | 广州视臻信息科技有限公司 | Data transmission method and device |
-
2023
- 2023-12-23 CN CN202311784289.6A patent/CN117453171A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103312718A (en) * | 2013-06-25 | 2013-09-18 | 龙迅半导体科技(合肥)有限公司 | Device control method and device and multimedia equipment |
| CN105045548A (en) * | 2015-06-16 | 2015-11-11 | 广州视睿电子科技有限公司 | Wireless screen transmission method, extension device and wireless screen transmission system |
| CN107948567A (en) * | 2016-10-12 | 2018-04-20 | 广州视源电子科技股份有限公司 | The method and device of the wired biography screens of USB |
| CN107168666A (en) * | 2017-04-21 | 2017-09-15 | 陈景雄 | The system and method for USB interface-based audio video transmission and multi-screen mapping |
| CN115437542A (en) * | 2022-08-31 | 2022-12-06 | 海信视像科技股份有限公司 | Display device and screen projection inverse control method |
| CN115878537A (en) * | 2022-11-28 | 2023-03-31 | 广州视臻信息科技有限公司 | Data transmission method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9467731B2 (en) | Method for controlling touch screen, and mobile terminal | |
| US11845451B2 (en) | Automobile diagnostic method, apparatus, device and system, and diagnostic connection device | |
| EP2804393B1 (en) | Remote control method, intelligent terminal and intelligent remote control system | |
| WO2013048773A2 (en) | In-band peripheral authentication | |
| CN113628304B (en) | Image processing method, image processing device, electronic equipment and storage medium | |
| JP2017531339A (en) | Method and apparatus for interconnecting smart terminals and in-vehicle terminals | |
| CN111367764A (en) | PCIE monitoring method, system, equipment and computer storage medium | |
| CN108563594B (en) | Data transmission method and device and USB adapter | |
| CN117453171A (en) | Virtual mapping method and device for android system display and virtual mapping system | |
| CN103024545B (en) | A kind of os starting method of Set Top Box and Set Top Box, server | |
| CN108513365A (en) | Control method and device of intelligent equipment, intelligent equipment and medium | |
| CN112291325A (en) | Message processing method and device and computer system | |
| CN116300780B (en) | Component configuration method, device, electronic equipment and storage medium | |
| CN218825507U (en) | Dual-interface device and projection equipment | |
| CN114880266B (en) | Fault processing method and device, computer equipment and storage medium | |
| WO2022237239A1 (en) | Method, system, apparatus and device for product monitoring | |
| CN114268799B (en) | Streaming media transmission method and device, electronic equipment and medium | |
| CN115442451A (en) | Image signal transmission method and display device test equipment | |
| CN113031895A (en) | Screen projection control method and device and electronic equipment | |
| CN210129207U (en) | Interactive intelligent tablet | |
| CN114025227A (en) | Electronic equipment and control method | |
| CN113050800A (en) | Electronic equipment and processing method | |
| CN113473242B (en) | Video image transmission method, related system, device and storage medium | |
| CN112005544A (en) | Meeting with error status HID notification | |
| CN115499791B (en) | Service-oriented communication method, device, electronic equipment and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |