CN114168057B - Multi-picture corresponding multi-host real-time touch interaction method - Google Patents
Multi-picture corresponding multi-host real-time touch interaction method Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000003993 interaction Effects 0.000 title claims abstract description 19
- 238000012545 processing Methods 0.000 claims abstract description 15
- 238000013507 mapping Methods 0.000 claims abstract description 14
- 238000013506 data mapping Methods 0.000 claims abstract description 5
- 238000004364 calculation method Methods 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
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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
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
- G06F3/04883—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text
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- 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
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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
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/017—Gesture based interaction, e.g. based on a set of recognized hand gestures
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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
- G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
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- 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
- G06F2213/0042—Universal serial bus [USB]
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- 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
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
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- Human Computer Interaction (AREA)
- Position Input By Displaying (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The invention discloses a multi-picture corresponding multi-host real-time touch interaction method, which comprises the steps of receiving original data sent by an external touch screen through a USB interface, analyzing an original data protocol, and obtaining original coordinates of operators after picture touch operation; when the external touch screen performs image processing of display picture splicing, outputting splicing mode state information; according to a coordinate mapping algorithm, performing data mapping processing on the original coordinate data of the picture area and the final touch coordinate of the information source host according to different splicing modes, and forming processed touch data; based on the difference of USB interfaces and display pictures bound by hosts of different information sources, the processed touch data are distributed to hosts of different information sources. The real-time touch operation and control of a plurality of hosts can be realized through one touch display device, the problem that touch operation cannot be performed in the multi-picture spliced display condition is solved, the operation time of personnel is shortened, and the convenience of man-machine interaction is improved.
Description
Technical Field
The invention relates to a touch interaction method, in particular to a multi-picture corresponding multi-host real-time touch interaction method, and belongs to the technical field of man-machine interaction of display equipment.
Background
Along with the development of technology, the man-machine interaction requirement on display equipment is higher, the requirement of touch interaction operation between the multi-picture spliced display and each information source host needs to be met, when a single large-size touch display equipment has a plurality of host signal inputs, the display pictures of the hosts can be spliced and displayed, and a plurality of host pictures are simultaneously displayed on a screen. However, touch control of the display device cannot be respectively corresponding to the plurality of hosts, so that real-time touch interaction of the plurality of hosts cannot be realized, and operation of each host can be realized only by matching with other peripheral devices such as a keyboard and a mouse.
In the prior art, in the patent (CN 111857391a, a freely configurable touch screen splicing system and a control method), a plurality of touch screens and a plurality of touch data processing devices are mainly adopted, and after processing, touch data is sent to a host; in the patent (CN 111857391 a-a freely configurable touch screen splicing system and control method), a mode of splicing multiple touch screens is mainly adopted.
Based on the prior art, the present method for performing multi-host source image mosaic display on a large-size high-resolution display device is a mature technology and application, but because the final display image is displayed by the mosaic composition of a plurality of host source images, when the touch operation is performed on the display device, the touch response coordinates cannot be transmitted to each source host in real time, and meanwhile, the touch operation and the display image do not correspond, so that the man-machine interaction of the mosaic image touch cannot be completed.
Disclosure of Invention
The invention aims to provide a method for real-time touch interaction of multiple corresponding hosts in multiple pictures.
The invention realizes the above purpose through the following technical scheme: a method for real-time touch interaction of multiple pictures corresponding to multiple hosts comprises the following steps:
s1, receiving original data sent by an external touch screen through a USB interface, and carrying out protocol analysis on the original data to obtain original coordinates of the touch operation of an operator on a picture;
s2, outputting splicing mode state information when the external touch screen performs image processing of display picture splicing;
s3, carrying out data mapping processing on the original coordinate data of the picture area and the final touch coordinate of the information source host according to a coordinate mapping algorithm in different splicing modes, and forming processed touch data;
s4, distributing the processed touch data to hosts of different sources based on the difference of the USB interfaces and the display pictures bound by the hosts of different sources.
As still further aspects of the invention: in the S1, the method specifically comprises
1) The USB interface receives original data sent by the external touch screen, and the internal software interface function analyzes according to the HID protocol of the USB to extract original touch coordinate values of the spliced picture;
2) The USB interface is used for receiving the original data of the external touch screen, has no requirement on the implementation mode of the external touch screen, and can be any one of capacitive touch, infrared touch, resistance touch and the like, and the USB interface can meet the standard USB protocol.
As still further aspects of the invention: in the S2, specifically include
1) When the external touch screen is used for splicing pictures based on the picture splicing module, the splicing mode and the resolution information are synchronously transmitted, and common splicing modes comprise 2 picture splicing, 4 picture splicing, 16 picture splicing and the like;
2) The splicing mode and resolution information comprises the original resolution of each host information source and the resolution of the spliced sub-picture, and comprises the starting point of each spliced sub-picture in the spliced integral picture;
3) And receiving externally transmitted mode information by using a common low-speed interface such as a serial port or I2C.
As still further aspects of the invention: in the S3, specifically include
(1) Dividing the original touch coordinate values obtained in the step S1 according to the step S2, judging which single spliced picture belongs to, and determining which information source host needs to be transmitted to by the touch operation;
(2) determining a coordinate mapping algorithm; setting resolution of a touch screen of the spliced display as (W, H), wherein the number of sub-touch areas of the touch screen divided transversely and longitudinally is (Nx, ny), the resolution of an n-th input host computer information source (Wn, hn), and mapping original touch point coordinates (x, y) of the touch screen to coordinates of an n-th information source host computer:
as still further aspects of the invention: in the S4, the method specifically comprises
1) Packaging the final coordinate data after the mapping calculation according to the HID protocol of the USB;
2) And sending the packaged final coordinate data to a corresponding information source host by using different USB interfaces according to different spliced pictures.
The beneficial effects of the invention are as follows:
1) By using the method, the pictures of the hosts are spliced and displayed on the touch screen, and the simultaneous control of the hosts can be realized through one touch device, so that convenience of man-machine interaction is submitted, and meanwhile, the external devices of the hosts are reduced, and the space occupation is reduced;
2) The method enables the spliced picture to support multi-point touch, has no limit of touch points under the existing hardware condition, can support multi-point touch of operators, improves the diversity of touch operation, can support gesture operation, and avoids the singleness of single-point touch operation;
3) The method has strong universality, has no requirement on touch implementation modes, can be implemented by infrared touch, capacitive touch and the like, and is universal and is not influenced by an external touch screen;
4) According to the method, the physical layer is not required to be switched or switched among a plurality of hosts, touch data is only processed by software, the processing level is low in speed and the touch interaction time delay is low in use experience;
5) The method is convenient to realize, can be realized without modifying the original design, and can be realized with low cost and small development workload by only carrying out a small amount of expansion outside the USB interface of the touch screen.
Drawings
FIG. 1 is a schematic block diagram of the method of the present invention;
FIG. 2 is a schematic diagram of a touch coordinate processing flow in accordance with the present invention;
FIG. 3 is a schematic diagram of a tiled display according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1 and 2, a method for real-time touch interaction of multiple hosts corresponding to multiple pictures includes the following steps:
s1, receiving original data sent by an external touch screen through a USB interface of an information source host, analyzing an original data protocol, and obtaining original coordinates of an operator after touch operation of a picture.
In step S1, specifically, the method includes: 1) The method comprises the steps of receiving original data sent by an external touch screen by using a USB interface, analyzing the original data according to an HID protocol of the USB through an internal software interface function, and extracting original touch coordinate values of a spliced picture in the original data, wherein the internal software interface is a software system, the software interface function refers to part of functions related to the interface in software, mainly extracting coordinates in the USB data, and the function of the internal software interface function is a function of protocol analysis; 2) The USB interface is used for receiving the original data sent by the external touch screen, has no requirement on the implementation mode of the external touch screen, and can be any one of capacitive touch, infrared touch, resistance touch and the like, so long as the standard USB protocol is met. The USB interface is only used for receiving the original data sent by the external touch screen, and has no requirement on a touch mode, so that the universality and the application scene of the method are greatly improved.
And S2, outputting splicing mode state information when the external touch screen performs image processing of splicing display pictures.
In step S2, specifically, the method includes: 1) When an external touch screen performs picture splicing based on a picture splicing module, the output splicing mode state information comprises splicing modes and resolution information, wherein common splicing modes comprise 2 picture splicing, 4 picture splicing or 16 picture splicing, and the like; 2) The splicing mode and resolution information comprises the original resolution of each host information source and the resolution of the spliced sub-picture, and comprises the starting point of each spliced sub-picture in the spliced integral picture; 3) And receiving externally transmitted mode information by using a common low-speed interface such as a serial port or I2C.
And S3, carrying out data mapping processing on the original coordinate data of the picture area and the final touch coordinates of the information source host according to different splicing modes by a coordinate mapping algorithm, and forming processed touch data.
In step S3, specifically, the method includes: 1) Dividing the original coordinates obtained in the step S1 according to the step S2, judging which single spliced picture belongs to, and determining which information source host needs to be transmitted to by the touch operation; 2) Determining a coordinate mapping algorithm; setting resolution of a touch screen of the spliced display as (W, H), wherein the number of sub-touch areas of the touch screen divided transversely and longitudinally is (Nx, ny), the resolution of an n-th input host computer information source (Wn, hn), and mapping original touch point coordinates (x, y) of the touch screen to coordinates of an n-th information source host computer:
s4, distributing the processed touch data to hosts of different sources based on the difference of the USB interfaces and the display pictures bound by the hosts of different sources.
In step S4, specifically, the method includes: 1) Packaging the final coordinate data after the mapping calculation according to the HID protocol of the USB; 2) And sending the packaged final coordinate data to a corresponding information source host by using different USB interfaces according to different spliced pictures.
Example two
As shown in fig. 3, taking a touch display device with a resolution of 3840×2160 as an example, 4 host signal sources are input for display in a spliced manner, and each host output video signal source has a resolution of 1920×1080, including the following steps:
1) When the touch display device is operated by an operator finger, reporting the operation result through a USB interface, and analyzing the original coordinate assumption of a point touched by the touch display device through an HID protocol to be (1700 );
2) The picture splicing module transmits a 4-picture 2×2 splicing mode, and the starting of 4 paths of host signal sources are (0, 0), (1920,0), (0,1080) and (1920,1080) respectively;
3) By comparison, the original touch point is judged to be on the picture 1, the conversion is carried out by using a formula, the coordinates corresponding to the No. 1 host system are (1700,620),
and packaging the final touch coordinates (1700,620) according to the HID protocol requirement, sending the final touch coordinates to the 1# host system, and responding the final touch coordinates by the 1# host system, namely finishing touch interaction operation.
Working principle: firstly, a picture splicing module carries out splicing processing on video signals of all host information sources, and transmits splicing mode and resolution information to a touch data processing module. And then the touch processing module analyzes the touch data, judges which host is the spliced picture, calculates the final touch coordinates of the host through an original touch coordinate data mapping algorithm according to the splicing mode and the resolution information, and finally packages the coordinate data after the mapping calculation according to the HID protocol of the USB and distributes the coordinate data to the corresponding signal source host.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (2)
1. A multi-picture corresponding multi-host real-time touch interaction method is characterized in that: the method comprises the following steps:
s1, receiving original data sent by an external touch screen through a USB interface, analyzing an original data protocol, and acquiring original coordinates of an operator after touch operation of a picture;
in the S1, the method specifically comprises
1) The USB interface receives original data sent by the external touch screen, and the internal software interface function analyzes according to the HID protocol of the USB to extract original touch coordinate values of the spliced picture; s2, outputting splicing mode state information when the external touch screen performs image processing of display picture splicing;
in the S2, specifically include
(1) When the external touch screen performs picture splicing based on the picture splicing module, the outputted splicing mode state information comprises splicing mode and resolution information;
(2) the splicing mode and resolution information comprises the original resolution of each host information source and the resolution of the spliced sub-picture, and comprises the starting point of each spliced sub-picture in the spliced integral picture;
(3) receiving mode information sent by an external touch screen by using a serial port or an I2C low-speed interface; s3, carrying out data mapping processing on the original coordinate data of the picture area and the final touch coordinate of the information source host according to a coordinate mapping algorithm in different splicing modes, and forming processed touch data;
in the S3, specifically include
(1) Dividing the original coordinates obtained in the step S1 according to the step S2, judging which single spliced picture belongs to, and determining which information source host needs to be transmitted to by the touch operation;
(2) determining a coordinate mapping algorithm; setting resolution of a touch screen of the spliced display as (W, H), wherein the number of sub-touch areas of the touch screen divided transversely and longitudinally is (Nx, ny), the resolution of an n-th input host computer information source (Wn, hn), and mapping original touch point coordinates (x, y) of the touch screen to coordinates of an n-th information source host computer:
s4, distributing the processed touch data to hosts of different sources based on the difference of USB interfaces and display pictures bound by the hosts of different sources; in the S4, the method specifically comprises
(1) Packaging the final coordinate data after the mapping calculation according to the HID protocol of the USB;
(2) and sending the packaged final coordinate data to a corresponding information source host by using different USB interfaces according to different spliced pictures.
2. The method for real-time touch interaction of multiple corresponding hosts in multiple pictures according to claim 1, wherein the method comprises the following steps: the USB interface is used for receiving the original screen data sent by the external touch, has no any requirement on the implementation mode of the external touch screen, is any one of capacitive touch, infrared touch or resistance touch, and can meet the standard USB protocol.
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