CN108121525A - A kind of two-screen Interactive operating method, system and equipment and storage medium - Google Patents
A kind of two-screen Interactive operating method, system and equipment and storage medium Download PDFInfo
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- CN108121525A CN108121525A CN201711420508.7A CN201711420508A CN108121525A CN 108121525 A CN108121525 A CN 108121525A CN 201711420508 A CN201711420508 A CN 201711420508A CN 108121525 A CN108121525 A CN 108121525A
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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
- G06F3/1431—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 using a single graphics controller
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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
- G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
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- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
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- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Graphics (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a kind of two-screen Interactive operating method, system and equipment and a kind of computer readable storage medium, this method to include：CPU shields pattern after being obtained by MCU, and judges whether the rear screen pattern is synchronous mode；The corresponding CVBS signals of preceding screen picture are sent if so, shielding backward, to shield the display preceding screen picture after an action of the bowels；If it is not, shielding external input picture after then obtaining, and the corresponding CVBS signals of the external input picture are sent to the rear screen, to shield the display external input picture after an action of the bowels.It can be seen that, two-screen Interactive operating method provided by the invention, by the display of a front and rear screen of CPU controls, the effect of MCU is only that the communication realized CPU and shielded afterwards, function without judgment model, the both of which shielded after being realized by single cpu makes front and rear screen that can show identical signal or show different signals, and hardware cost has been saved while the interaction of screen before and after realizing.
Description
Technical field
The present invention relates to vehicle mounted guidance technical field, more specifically to a kind of two-screen Interactive operating method, system and
Equipment and a kind of computer readable storage medium.
Background technology
With the development of automobile industry, onboard navigation system is progressively intended to car entertainment direction, and demand is not only
Navigation feature is more to incorporate the functions such as impression, video and communication, and covers each orientation of vehicle body, including front stall and
Back seat.
Rear seat entertainment system realization method of the prior art is relatively simple, most of all in existing hollow navigation system
System is outer, expands two displays on front-row seats to meet the needs of back-seat passengers.Based on this there are two kinds of realization methods, one
Kind be the signal that on-vehicle host is directly displayed directly by middle control vehicle device projection, so design rear passenger can only watch and cannot
Relevant manipulation is carried out, can not realize initiative and convenience that rear passenger operates vehicle entertainment system.During another kind is
Control guidance entertainment system separates independent design with rear-seat display system, and front and rear screen system is not interfere with each other, and back-seat passengers can be certainly
Row controls, while nor affects on the content of preceding screen display, meets the needs of back-seat passengers, but so designs complexity entertainment systems
Operation, also increase production cost.
Therefore, how to be operated by individual system realization multi-screen interactive, front and rear screen is made to show that different signals is this field
Technical staff's problem to be solved.
The content of the invention
It is an object of the invention to provide a kind of two-screen Interactive operating method, system and equipment and a kind of computer-readable deposit
Storage media realizes that multi-screen interactive operates by individual system, front and rear screen is made to show different signals.
To achieve the above object, the present invention provides a kind of two-screen Interactive operating method, including：
CPU shields pattern after being obtained by MCU, and judges whether the rear screen pattern is synchronous mode；
The corresponding CVBS signals of preceding screen picture are sent if so, shielding backward, to shield the display preceding screen picture after an action of the bowels；
If it is not, shield external input picture after then obtaining, and it is corresponding to the rear screen transmission external input picture
CVBS signals, to shield the display external input picture after an action of the bowels.
Wherein, further include：
The CPU shields forward video decoding unit and sends LVDS signals；
The LVDS signals are converted into the real preceding screen picture that shields and can show by screen video decoding unit before described, so as to
Preceding screen shows the preceding screen picture.
Wherein, the corresponding CVBS signals of screen picture before being sent to the MCU, to shield the display preceding screen picture, bag after an action of the bowels
It includes：
The CPU shields video decoding unit and sends the corresponding CVBS signals of the preceding screen picture backward；
The CVBS signals are converted into the real preceding screen picture that shields and can show by screen video decoding unit after described, so as to
Screen picture before screen display is described afterwards.
Wherein, if screen pattern is synchronous mode after described, further include：
The CPU obtains the preceding screen or the first touch location shielded afterwards, and updates institute according to first touch location
Screen picture before stating obtains current preceding screen picture；
The current preceding corresponding LVDS signals of picture that shield are sent to the preceding screen by the CPU, so as to the preceding screen display
Show the currently preceding screen picture, the current preceding corresponding CVBS signals of picture that shield are sent to the rear screen, after described
The screen display current preceding screen picture.
Wherein, the CPU obtains the preceding screen or the first touch location shielded afterwards, including：
The CPU obtains first touch location by preceding screen touch unit；
Or the MCU obtains first touch location by rear screen touch unit, and first touch location is sent out
It send to the CPU.
Wherein, if screen pattern is asynchronous mode after described, further include：
The MCU obtains the second touch location of the rear screen by rear screen touch unit, and touches position by described second
It puts and is sent to the CPU；
The CPU updates the external input picture according to second touch location, obtains current external input picture；
The corresponding CVBS signals of current external input picture are sent to the rear screen by the CPU, after described
Screen shows the current external input picture.
To achieve the above object, the present invention provides a kind of two-screen Interactive operating system, including：
Judgment module shields pattern after being obtained for CPU by MCU, and judges whether the rear screen pattern is synchronous mode；
Synchronization module, for when screen pattern is synchronous mode after described, shielding the corresponding CVBS of screen picture before sending backward
Signal, to shield the display preceding screen picture after an action of the bowels；
Asynchronous module, for when screen pattern is asynchronous mode after described, shielding external input picture after acquisition, and to described
Screen sends the corresponding CVBS signals of the external input picture afterwards, to shield the display external input picture after an action of the bowels.
Wherein, further include：
Sending module shields forward video decoding unit for the CPU and sends LVDS signals；
The LVDS signals are converted into described in real screen can show by modular converter for the preceding screen video decoding unit
Preceding screen picture, so that preceding screen shows the preceding screen picture.
To achieve the above object, the present invention provides a kind of two-screen Interactives to operate equipment, including：
Memory, for storing computer program；
Processor is realized such as the step of above-mentioned two-screen Interactive operating method during for performing the computer program.
To achieve the above object, the present invention provides a kind of computer readable storage medium, the computer-readable storages
Computer program is stored on medium, such as above-mentioned two-screen Interactive operation side is realized when the computer program is executed by processor
Method.
By above scheme, a kind of two-screen Interactive operating method provided by the invention includes：CPU is obtained by MCU
After shield pattern, and judge it is described after screen pattern whether be synchronous mode；If so, the corresponding CVBS of screen picture before screen is sent backward
Signal, to shield the display preceding screen picture after an action of the bowels；If it is not, shielding external input picture after then obtaining, and institute is sent to the rear screen
The corresponding CVBS signals of external input picture are stated, to shield the display external input picture after an action of the bowels.
Two-screen Interactive operating method provided by the invention, by the display of a front and rear screen of CPU controls, the effect of MCU only exists
In the communication realized CPU with shielded afterwards, the function without judgment model.CPU is shielded backward by MCU sends CVBS signals, so as to
Screen shows corresponding picture afterwards.When rear screen pattern is synchronous mode, after the corresponding CVBS signals of preceding screen picture are sent to by CPU
Screen, when rear screen pattern is asynchronous mode, CPU shields after the corresponding CVBS signals of external input picture are sent to.It can be seen that
Two-screen Interactive operating method provided by the invention, the both of which shielded after being realized by single cpu make front and rear screen that can both show
Show that identical signal can also show different signals, hardware cost has been saved while the interaction of screen before and after realizing.The present invention is also
A kind of two-screen Interactive operating system and equipment and a kind of computer readable storage medium are disclosed, it is similary to realize above-mentioned technology effect
Fruit.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of flow chart of two-screen Interactive operating method disclosed by the embodiments of the present invention；
Fig. 2 is the flow chart of another two-screen Interactive operating method disclosed by the embodiments of the present invention；
Fig. 3 is a kind of structure chart of two-screen Interactive operating system disclosed by the embodiments of the present invention；
Fig. 4 is the structure chart that a kind of two-screen Interactive disclosed by the embodiments of the present invention operates equipment.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment belongs to the scope of protection of the invention.
The embodiment of the invention discloses a kind of two-screen Interactive operating methods, realize that multi-screen interactive operates by individual system,
Front and rear screen is made to show different signals.
Referring to Fig. 1, a kind of flow chart of two-screen Interactive operating method disclosed by the embodiments of the present invention, as shown in Figure 1, bag
It includes：
S101：CPU shields pattern after being obtained by MCU, and judges whether the rear screen pattern is synchronous mode；If so,
Into S102；If it is not, then enter S103；
MCU (English full name：Micro Control Unit, Chinese full name：Micro-control unit) be after screen with CPU (English
Full name：CentralProcessing Unit, Chinese full name：Central processing unit) between transmission bridge, i.e. MCU only possesses
The forwarding capability of signal does not carry out judgement operation instead of CPU.The both of which shielded after being realized by single cpu makes front and rear screen
It can show identical signal or show different signals, save hardware cost.MCU shields pattern and is sent to after obtaining
CPU, CPU judge that the rear screen pattern for synchronous mode is into S102；Enter S103 during asynchronous mode；
The present embodiment is not defined the concrete model of CPU, and the AC8317 chips of MTK, CPU AC8317 may be employed
It is made of, and has plus the ARM9 kernels of a dominant frequency highest 400MHz the kernel of dominant frequency highest 1GHz double-core CortexA7 frameworks
The vision signal LVDS and CVBS, LVDS signal that two-way independently exports are used for being supplied to preceding screen, and CVBS signals are used for after being supplied to
Screen.Equally, the present embodiment is not defined the concrete model of MCU, and stm32 may be employed as MCU, by iic bus with
Screen communicates afterwards, is communicated by serial ports with CPU.
S102：Shield the corresponding CVBS signals of screen picture before sending backward, to shield the display preceding screen picture after an action of the bowels；
In specific implementation, when rear screen pattern is synchronous mode, preceding screen with shielding the identical picture of display afterwards, i.e., before described
Shield picture.CPU shields the corresponding CVBS signals of screen picture before video decoding unit is sent backward, and the rear video decoding unit that shields will
CVBS signals are converted into shielding the picture that can be shown in fact, to shield screen picture before display after an action of the bowels.The present embodiment may be employed TW8825 and regard
Frequency decoding unit shields video decoding unit after being used as, naturally it is also possible to using other elements with identity function, not make herein
It is specific to limit.
S103：Shield external input picture after acquisition, and the corresponding CVBS of the external input picture is sent to the rear screen
Signal, to shield the display external input picture after an action of the bowels.
In specific implementation, when rear screen pattern is asynchronous mode, rear screen shows external input picture, which draws
Face can include the picture by displays such as USB, disk, SD card, DVD, be not especially limited herein.Receive external input picture
Element can be SGM9123, naturally it is also possible to using other elements with identity function, be not especially limited herein.
External input picture shields video decoding unit after being sent to by CVBS signals, and the rear video decoding unit that shields is by CVBS
Signal is converted into shielding the picture that can be shown in fact, to shield display external input picture after an action of the bowels.
It is understood that preceding screen picture influences from rear screen at this time, CPU shields forward video decoding unit and sends LVDS letters
Number, LVDS signals are converted into shielding the picture that can be shown in fact by preceding screen video decoding unit, screen picture before being shown so as to preceding screen.
Two-screen Interactive operating method provided in an embodiment of the present invention, by the display of a front and rear screen of CPU controls, the work of MCU
With the communication for being only that realization CPU with shielding afterwards, the function without judgment model.CPU is shielded backward by MCU sends CVBS letters
Number, to shield the corresponding picture of display after an action of the bowels.When rear screen pattern is synchronous mode, CPU is by the corresponding CVBS signals of preceding screen picture
Shield after being sent to, when rear screen pattern is asynchronous mode, CPU shields after the corresponding CVBS signals of external input picture are sent to.
It can be seen that two-screen Interactive operating method provided in an embodiment of the present invention, the both of which shielded after being realized by single cpu,
Screen can show identical signal or show different signals before and after making, and saved firmly while the interaction of screen before and after realizing
Part cost.
The embodiment of the invention discloses a kind of two-screen Interactive operating methods, and compared with a upper embodiment, the present embodiment is to skill
Art scheme has made further instruction and optimization, that is, further includes the operational order for receiving user and complete corresponding operation.Specifically
's：
Referring to Fig. 2, the flow chart of another kind two-screen Interactive operating method provided in an embodiment of the present invention, as shown in Fig. 2, bag
It includes：
S201：The CPU obtains the preceding screen or the first touch location shielded afterwards, and according to first touch location more
The new preceding screen picture, obtains current preceding screen picture；
In specific implementation, when rear screen pattern is synchronous mode, rear screen is identical with the picture that preceding screen is shown.User clicks on
Another screen should update itself picture at any time during arbitrary screen.CPU obtains the first touch location by preceding screen touch unit；Or
MCU obtains first touch location by rear screen touch unit, and first touch location is sent to the CPU.CPU
Corresponding operation is performed according to the first touch location, screen picture, the institute which possesses including onboard navigation system before updating
It is functional, such as pause or switching song, startup navigation pattern etc..
S202：The current preceding corresponding LVDS signals of picture that shield are sent to the preceding screen by the CPU, before described
Screen shows the currently preceding screen picture, the current preceding corresponding CVBS signals of picture that shield is sent to the rear screen, with toilet
The screen display current preceding screen picture after stating.
The current Qian Ping pictures branch after obtaining current preceding screen picture, is converted to LVDS letters by screen picture before CPU updates
Number and CVBS signals, be respectively sent to preceding screen and rear screen, so as to preceding screen and rear screen display it is current before screen picture.
On the basis of above-described embodiment, preferably, if screen pattern is asynchronous mode after described, also wrap
It includes：
The MCU obtains the second touch location of the rear screen by rear screen touch unit, and touches position by described second
It puts and is sent to the CPU；
The CPU updates the external input picture according to second touch location, obtains current external input picture；
The corresponding CVBS signals of current external input picture are sent to the rear screen by the CPU, after described
Screen shows the current external input picture.
In specific implementation, when rear screen pattern is asynchronous mode, rear screen shows external input picture.After user clicks on
When shielding a certain position, rear touch unit of shielding obtains the second touch location that user clicks on, and passes through MCU and be sent to CPU.CPU roots
Corresponding operation is performed according to the second touch location, the external input signal shielded after update obtains current external input picture, and will
The corresponding CVBS signals of current external input picture shield video decoding unit after being sent to by MCU, and rear screen decoding unit should
Screen and the picture of display after CVBS signals are decoded as.
A kind of two-screen Interactive operating system provided in an embodiment of the present invention is introduced below, it is described below a kind of double
Shielding interactive operation system can be cross-referenced with a kind of above-described two-screen Interactive operating method.
Referring to Fig. 3, a kind of structure chart of two-screen Interactive operating system provided in an embodiment of the present invention, as shown in figure 3, bag
It includes：
Judgment module 301 shields pattern after being obtained for CPU by MCU, and judges whether the rear screen pattern is synchronous mould
Formula；
Synchronization module 302, for when screen pattern is synchronous mode after described, screen picture to be corresponding before screen is sent backward
CVBS signals, to shield the display preceding screen picture after an action of the bowels；
Asynchronous module 303, for when screen pattern is asynchronous mode after described, shielding external input picture after acquisition, and to
Screen sends the corresponding CVBS signals of the external input picture after described, to shield the display external input picture after an action of the bowels.
Two-screen Interactive operating system provided in an embodiment of the present invention, by the display of a front and rear screen of CPU controls, the work of MCU
With the communication for being only that realization CPU with shielding afterwards, the function without judgment model.CPU is shielded backward by MCU sends CVBS letters
Number, to shield the corresponding picture of display after an action of the bowels.When rear screen pattern is synchronous mode, CPU is by the corresponding CVBS signals of preceding screen picture
Shield after being sent to, when rear screen pattern is asynchronous mode, CPU shields after the corresponding CVBS signals of external input picture are sent to.
It can be seen that two-screen Interactive operating system provided in an embodiment of the present invention, the both of which shielded after being realized by single cpu,
Screen can show identical signal or show different signals before and after making, and saved firmly while the interaction of screen before and after realizing
Part cost.
On the basis of above-described embodiment, preferably, further include：
Sending module shields forward video decoding unit for the CPU and sends LVDS signals；
The LVDS signals are converted into described in real screen can show by modular converter for the preceding screen video decoding unit
Preceding screen picture, so that preceding screen shows the preceding screen picture.
On the basis of above-described embodiment, preferably, the synchronization module 302 includes：
Transmitting element shields video decoding unit for the CPU and sends the corresponding CVBS of the preceding screen picture backward
Signal；
The CVBS signals are converted into described in real screen can show by converting unit for screen video decoding unit after described
Preceding screen picture, to shield the display preceding screen picture after an action of the bowels.
On the basis of above-described embodiment, preferably, if screen pattern is synchronous mode after described, also wrap
It includes：
First acquisition module, for the CPU obtain it is described before screen or the first touch location for shielding afterwards, and according to described the
Screen picture before the update of one touch location is described obtains current preceding screen picture；
First display module, for the CPU by it is described it is current before the corresponding LVDS signals of screen picture be sent to it is described before
Shield, so that the preceding screen shows the currently preceding screen picture, the current preceding corresponding CVBS signals of picture that shield are sent to institute
Shield after stating, so as to after described screen display it is described it is current before screen picture.
On the basis of above-described embodiment, preferably, first acquisition module includes：
Acquiring unit obtains first touch location for the CPU by preceding screen touch unit；Or the MCU leads to
Later shield touch unit and obtain first touch location, and first touch location is sent to the CPU；
Updating block, for according to first touch location update it is described before screen picture, obtain it is current before shield picture.
On the basis of above-described embodiment, preferably, if screen pattern is asynchronous mode after described, also wrap
It includes：
Second acquisition module obtains the second touch location of the rear screen for the MCU by rear screen touch unit, and
Second touch location is sent to the CPU；
Update module updates the external input picture for the CPU according to second touch location, obtains current
External input picture；
CPU described in second display module by the corresponding CVBS signals of current external input picture be sent to it is described after
Screen, so that the rear screen shows the current external input picture.
Present invention also provides a kind of two-screen Interactives to operate equipment, referring to Fig. 4, a kind of double screen provided in an embodiment of the present invention
The structure chart of interactive operation equipment, as shown in figure 4, including：
Memory 401, for storing computer program；
Processor 402, for performing computer program when, can realize the step of above-described embodiment provides.Certainly
The two-screen Interactive operation equipment can also include the components such as various network interfaces, power supply.
Two-screen Interactive provided in an embodiment of the present invention operates equipment, by the display of a front and rear screen of CPU controls, the work of MCU
With the communication for being only that realization CPU with shielding afterwards, the function without judgment model.CPU is shielded backward by MCU sends CVBS letters
Number, to shield the corresponding picture of display after an action of the bowels.When rear screen pattern is synchronous mode, CPU is by the corresponding CVBS signals of preceding screen picture
Shield after being sent to, when rear screen pattern is asynchronous mode, CPU shields after the corresponding CVBS signals of external input picture are sent to.
It can be seen that two-screen Interactive operation equipment provided in an embodiment of the present invention, the both of which shielded after being realized by single cpu,
Screen can show identical signal or show different signals before and after making, and saved firmly while the interaction of screen before and after realizing
Part cost.
Present invention also provides a kind of computer readable storage mediums, are stored thereon with computer program, the computer
Program can realize the step of above-described embodiment provides when being executed by processor.The storage medium can include：USB flash disk, movement
Hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory,
RAM), the various media that can store program code such as magnetic disc or CD.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications of these embodiments will be apparent for those skilled in the art, it is as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide scope caused.
Each embodiment is described by the way of progressive in specification, the highlights of each of the examples are with other realities
Apply the difference of example, just to refer each other for identical similar portion between each embodiment.For system disclosed in embodiment
Speech, since it is corresponded to the methods disclosed in the examples, so description is fairly simple, related part is referring to method part illustration
.It should be pointed out that for those skilled in the art, on the premise of the application principle is not departed from, also
Can to the application, some improvement and modification can also be carried out, these improvement and modification also fall into the application scope of the claims
It is interior.
It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only include that
A little elements, but also including other elements that are not explicitly listed or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except also there are other identical elements in the process, method, article or apparatus that includes the element.
Claims (10)
1. a kind of two-screen Interactive operating method, which is characterized in that including：
CPU shields pattern after being obtained by MCU, and judges whether the rear screen pattern is synchronous mode；
The corresponding CVBS signals of preceding screen picture are sent if so, shielding backward, to shield the display preceding screen picture after an action of the bowels；
If it is not, shielding external input picture after then obtaining, and send the corresponding CVBS of the external input picture to the rear screen and believe
Number, to shield the display external input picture after an action of the bowels.
2. two-screen Interactive operating method according to claim 1, which is characterized in that further include：
The CPU shields forward video decoding unit and sends LVDS signals；
The LVDS signals are converted into the real preceding screen picture that shields and can show by screen video decoding unit before described, so as to preceding screen
Show the preceding screen picture.
3. two-screen Interactive operating method according to claim 1, which is characterized in that screen picture corresponds to before being sent to the MCU
CVBS signals, with shield after an action of the bowels display it is described before screen picture, including：
The CPU shields video decoding unit and sends the corresponding CVBS signals of the preceding screen picture backward；
The CVBS signals are converted into the real preceding screen picture that shields and can show by screen video decoding unit after described, to shield after an action of the bowels
Show the preceding screen picture.
4. two-screen Interactive operating method according to claim 2, which is characterized in that if screen pattern is synchronous mode after described,
Then further include：
The CPU obtain it is described before screen or the first touch location for shielding afterwards, and according to first touch location update it is described before
Shield picture, obtain current preceding screen picture；
The current preceding corresponding LVDS signals of picture that shield are sent to the preceding screen by the CPU, so that the preceding screen shows institute
Currently preceding screen picture is stated, the currently preceding corresponding CVBS signals of picture that shield are sent to the rear screen, so as to the rear screen display
Show the current preceding screen picture.
5. two-screen Interactive operating method according to claim 4, which is characterized in that the CPU obtains the preceding screen or rear screen
The first touch location, including：
The CPU obtains first touch location by preceding screen touch unit；
Or the MCU obtains first touch location by rear screen touch unit, and first touch location is sent to
The CPU.
6. two-screen Interactive operating method according to claim 2, which is characterized in that if screen pattern is asynchronous mode after described,
Then further include：
The MCU obtains the second touch location of the rear screen by rear screen touch unit, and second touch location is sent out
It send to the CPU；
The CPU updates the external input picture according to second touch location, obtains current external input picture；
The corresponding CVBS signals of current external input picture are sent to the rear screen by the CPU, so as to the rear screen display
Show the current external input picture.
7. a kind of two-screen Interactive operating system, which is characterized in that including：
Judgment module shields pattern after being obtained for CPU by MCU, and judges whether the rear screen pattern is synchronous mode；
Synchronization module, for when screen pattern is synchronous mode after described, shielding the corresponding CVBS signals of screen picture before sending backward,
To shield the display preceding screen picture after an action of the bowels；
Asynchronous module, for when screen pattern is asynchronous mode after described, shielding external input picture after acquisition, and to screen after described
The corresponding CVBS signals of the external input picture are sent, to shield the display external input picture after an action of the bowels.
8. two-screen Interactive operating system according to claim 7, which is characterized in that further include：
Sending module shields forward video decoding unit for the CPU and sends LVDS signals；
The LVDS signals are converted into reality for the preceding screen video decoding unit and shield the preceding screen that can be shown by modular converter
Picture, so that preceding screen shows the preceding screen picture.
9. a kind of two-screen Interactive operates equipment, which is characterized in that including：
Memory, for storing computer program；
Processor realizes the two-screen Interactive operation side as described in any one of claim 1 to 6 during for performing the computer program
The step of method.
10. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium
Program realizes the two-screen Interactive operation side as described in any one of claim 1 to 6 when the computer program is executed by processor
Method.
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| CN201711420508.7A CN108121525A (en) | 2017-12-25 | 2017-12-25 | A kind of two-screen Interactive operating method, system and equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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