CN110517476A - Virtual remote control generation method, system and storage medium - Google Patents
Virtual remote control generation method, system and storage medium Download PDFInfo
- Publication number
- CN110517476A CN110517476A CN201910870780.8A CN201910870780A CN110517476A CN 110517476 A CN110517476 A CN 110517476A CN 201910870780 A CN201910870780 A CN 201910870780A CN 110517476 A CN110517476 A CN 110517476A
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- Prior art keywords
- remote control
- virtual
- key
- physical button
- infrared signal
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000004048 modification Effects 0.000 claims description 7
- 238000012986 modification Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 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
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/01—Indexing scheme relating to G06F3/01
- G06F2203/012—Walk-in-place systems for allowing a user to walk in a virtual environment while constraining him to a given position in the physical environment
Abstract
The invention discloses virtual remote control generation method and devices, this method comprises: the image information in face where obtaining the upper each physical button of entity remote control；Described image information is parsed, the virtual remote control key page is generated, the layout of each virtual key is corresponding with the physical button layout that the entity is remotely controlled on the virtual remote control key page；Successively receive the click information of the virtual key, and begin listening for infrared signal, received infrared signal and the virtual key of click are bound, until the infrared signal of each virtual key binds completion on the virtual remote control key page, the received infrared signal is to press infrared signal caused by physical button corresponding with the virtual key.The present invention can include infrared remote controls all at one's side, solve entity remote control and be easily lost, manage inconvenient problem by generating virtual remote control.
Description
Technical field
The invention belongs to Intelligent treatment fields, and in particular to a kind of virtual remote control generation method, system and storage medium.
Background technique
As the type of smart home device is more and more, the quantity for the smart home that each family uses is also continuous
Increase, each smart home has itself matched remote controler, causes the remote controler quantity in family more and more.A large amount of remote control
Device is easily lost, and manages inconvenient problem.
Summary of the invention
The technical problem to be solved by the present invention is to existing remote controls to be easily lost, and manage inconvenient problem.
In order to solve the above-mentioned technical problems, the present invention provides a kind of virtual remote control generation methods, comprising:
The image information in face where obtaining the upper each physical button of entity remote control；
Described image information is parsed, the generation virtual remote control key page, it is each on the virtual remote control key page
The layout of virtual key is corresponding with the physical button layout that the entity is remotely controlled；
Successively receive the click information of the virtual key, and begin listening for infrared signal, by received infrared signal with
The virtual key of click is bound, until the infrared signal of each virtual key binds completion on the virtual remote control key page,
The received infrared signal is to press infrared signal caused by physical button corresponding with the virtual key.
Preferably, the step of image information for obtaining the upper each physical button place face of entity remote control includes:
The image information in face where transferring the upper each physical button of image collecting device shooting entity remote control of smart machine.
Preferably, the step of image information for obtaining the upper each physical button place face of entity remote control includes:
The image memory device for transferring smart machine obtains described image information.
Preferably, described that described image information is parsed, generate the virtual remote control key page the step of include:
Identify the image of each physical button in described image information, orientation and distance between each physical button；
According to the orientation and distance between each physical button, the virtual remote control key page is generated.
Preferably, according to the orientation and distance between each physical button, the step of generating the virtual remote control key page
Include:
Receive the customized virtual key pictorial information of user；
According to the orientation and distance between the customized virtual key pictorial information of user, each physical button, generate virtual distant
Control the key page.
Preferably, according to the orientation and distance between each physical button, the step of generating the virtual remote control key page
Include:
User is received to the modification virtual key pictorial information after the amending image of each physical button in described image information；
According to the orientation and distance between modification virtual key pictorial information, each physical button, the virtual remote control key page is generated.
Preferably, according to the orientation and distance between each physical button, the step of generating the virtual remote control key page
Include:
According to the orientation and distance between the image of physical button each in described image information, each physical button, generate empty
The quasi- remote keying page.
A kind of storage medium, is stored thereon with program, wherein above-mentioned virtual remote control is realized when program is executed by processor
Generation method.
The present invention also provides a kind of virtual remote controls to generate system, comprising:
Image capture module, the image information for face where acquiring the upper each physical button of entity remote control；
Virtual remote control generation module, for parsing to described image information, the generation virtual remote control key page is described
The layout of each virtual key is corresponding with the physical button layout that the entity is remotely controlled on the virtual remote control key page；And for according to
When the secondary click information for receiving the virtual key, infrared signal is begun listening for, by the virtual of received infrared signal and click
Key binding, until the infrared signal of each virtual key binds completion on the virtual remote control key page, it is described received
Infrared signal is to press infrared signal caused by physical button corresponding with the virtual key.
Preferably, the virtual remote control generation module is integrally disposed in smart machine.
Preferably, the virtual remote control generation module is the APP being arranged in smart phone.
Compared with prior art, one or more embodiments in above scheme can have following advantage or beneficial to effect
Fruit:
Using virtual remote control generation method, system and storage medium provided in an embodiment of the present invention, by being remotely controlled to entity
It takes pictures, the layout and key of automatic identification entity remote control are tied up then by receiving and recording the infrared information of existing remote-transmitter
Fixed to realize to corresponding on virtual key and generate corresponding virtual remote control, the method can include infrared remote controls all at one's side, solve
Entity of having determined remote control is easily lost, and manages inconvenient problem.
Other features and advantages of the present invention will be illustrated in the following description, and partly becomes from specification
It is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by wanting in specification, right
Specifically noted structure is sought in book and attached drawing to be achieved and obtained.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example and is used together to explain the present invention, be not construed as limiting the invention.In the accompanying drawings:
Fig. 1 shows the flow chart of one virtual remote control generation method of the embodiment of the present invention；
Fig. 2 shows the flow charts of two virtual remote control generation method of the embodiment of the present invention；
Fig. 3, which is shown, obtains the upper each physical button place of entity remote control in two virtual remote control generation method of the embodiment of the present invention
The image information schematic diagram in face；
Fig. 4 shows the structural block diagram that three virtual remote control of the embodiment of the present invention generates system.
Specific embodiment
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and examples, how to apply to the present invention whereby
Technological means solves technical problem, and the realization process for reaching technical effect can fully understand and implement.It needs to illustrate
As long as not constituting conflict, each feature in each embodiment and each embodiment in the present invention can be combined with each other,
It is within the scope of the present invention to be formed by technical solution.
Embodiment one
To solve the above-mentioned technical problems in the prior art, the embodiment of the invention provides a kind of generations of virtual remote control
Method.
Fig. 1 shows the flow chart of one virtual remote control generation method of the embodiment of the present invention.
Referring to Fig.1, the present embodiment virtual remote control generation method includes the following steps:
Step S101: the image information in face where obtaining the upper each physical button of entity remote control；
Step S102 parses described image information, generates the virtual remote control key page, the virtual remote control key
The layout of each virtual key is corresponding with the physical button layout that the entity is remotely controlled on the page；
Step S103, successively receives the click information of the virtual key, and begins listening for infrared signal, will be received red
External signal and the virtual key of click are bound, until the infrared signal of each virtual key is tied up on the virtual remote control key page
Fixed to complete, the received infrared signal is to press infrared signal caused by physical button corresponding with the virtual key.
The present embodiment claps the key arrangement of remote control by image recognition technology identification, automatically generates virtual remote control key page
Face, and the transmitting signal for receiving existing infrared remote control realizes the binding of key, solves entity remote control and is easily lost, management is inconvenient
The problem of.
Embodiment two
To solve the above-mentioned technical problems in the prior art, the embodiment of the invention also provides another virtual remote controls
Generation method.The method is the extension to embodiment of the method shown in Fig. 1.Embodiment of the method shown in Fig. 1 can also apply this implementation
Example.The executing subject of this method can be understood as the application of the APP on smart machine (including but not limited to smart phone), this reality
It is that APP application is explained, but should not do limited understanding that example, which is applied, with executing subject.
Fig. 2 shows the flow charts of two virtual remote control generation method of the embodiment of the present invention.
Referring to Fig. 2, the present embodiment virtual remote control generation method includes the following steps:
The image information in face where step S201:APP application obtains the upper each physical button of entity remote control；This step specifically may be used
To include:
The image information in face where transferring the upper each physical button of image collecting device shooting entity remote control of smart machine；Such as
APP calls camera, is remote control shooting；
Or the image memory device acquisition described image information of smart machine is transferred, if APP calls picture library, acquisition remote control
Photo.When to entity remote control shooting, clean background is selected as far as possible, convenient for identification.
Step S202, APP generate the virtual remote control key page using parsing to described image information；Specific such as Fig. 3
Shown, the left side is the image of entity remote control, and the right is the corresponding virtual remote control key page；This step can specifically include:
Firstly, by image recognition technology identify described image information in each physical button image, each physical button it
Between orientation and distance；Include:
(1) key range, including the key with text prompt, and without the key of text prompt.
(2) relative direction and distance between key range.
Secondly, generating the virtual remote control key page according to orientation and distance between each physical button.Specific packet
It includes:
(1) the customized virtual key pictorial information of user is received；According to the customized virtual key pictorial information of user, each reality
Orientation and distance between body key generate the virtual remote control key page；
Virtual key image in this step can be to be generated according to key shape Automatic Drawing, or is made by oneself by user
Justice, or；
(2) it receives user and letter is illustrated to the modification virtual key after the amending image of each physical button in described image information
Breath；According to the orientation and distance between modification virtual key pictorial information, each physical button, the virtual remote control key page is generated；
Virtual key in this step can be the screenshot on photo, and carry out appropriate modification；Or；
(3) it according to the orientation and distance between the image of physical button each in described image information, each physical button, generates
The virtual remote control key page.
In this step, APP can directly intercept the screenshot for being remotely controlled upper key, to be used as the virtual key figure shown on APP
Picture；
Step S203, APP calculate the relative direction and distance between key, on the screen tiling display virtual key；
Step S204 is each key typing infrared signal in APP；It specifically includes:
(1) it in the infrared signal typing stage, clicks any one virtual key and begins listening for infrared signal；
(2) infrared receiver mouth of the infrared emission mouth of entity remote control against smart machine (such as mobile phone)；
(3) it presses entity and is remotely controlled on upper and APP just that physical button corresponding to the virtual key of typing；
(4) smart machine binds the infrared signal and the virtual key that receive.
The present embodiment identifies the key of made real body remote control by the processing to entity remote control shooting and image recognition technology
Layout automatically generates the click keys on APP, clicks the virtual key for needing to bind on APP, while being remotely controlled against smart machine
Infrared receiver mouth, press entity and be remotely controlled upper corresponding key, mobile phone receives the infrared signal of entity remote-transmitter, Ji Keshi
Existing typing solves entity remote control and is easily lost, manage inconvenient problem from there through that can manage multiple remote controlers in APP.
Embodiment three
To solve the above-mentioned technical problems in the prior art, generates and fill the embodiment of the invention provides virtual remote control
It sets.
Fig. 4 shows the structural block diagram that three virtual remote control of the embodiment of the present invention generates system.The present embodiment is Fig. 1 and figure
The corresponding system embodiment of embodiment of the method shown in 2.Explanation as shown in Figure 1 and Figure 2 also can be applied to this implementation
In example.As shown in figure 4, virtual remote control generation system includes:
Image capture module 401, the image information for face where acquiring the upper each physical button of entity remote control；
Virtual remote control generation module 402, for being parsed to described image information, the generation virtual remote control key page,
The layout of each virtual key is corresponding with the physical button layout that the entity is remotely controlled on the virtual remote control key page；And it is used for
When successively receiving the click information of the virtual key, infrared signal is begun listening for, by received infrared signal and click
Virtual key binding, until the infrared signal of each virtual key binds completion on the virtual remote control key page, it is described to connect
The infrared signal of receipts is to press infrared signal caused by physical button corresponding with the virtual key.
Preferably, the virtual remote control generation module 402 is integrally disposed in smart machine.
Preferably, the virtual remote control generation module is the APP being arranged in smart phone.
Virtual remote control provided in an embodiment of the present invention generates system, gives entity remote control shooting by image capture module 401,
Virtual remote control generation module 402 identifies the key arrangement of made real body remote control, automatically generates using the processing of image recognition technology
Virtual key on APP clicks the virtual key for needing to bind on APP, while being remotely controlled the infrared receiver mouth against smart machine,
It presses entity and is remotely controlled upper corresponding key, mobile phone receives the infrared signal of entity remote-transmitter, it can be achieved that typing, each by
The infrared remote control of kind electric appliance copies on the APP of smart machine, and an APP manages the function of all remote controls, and it is distant to solve entity
Control is easily lost, and manages inconvenient problem.
While it is disclosed that embodiment content as above but described only to facilitate understanding the present invention and adopting
Embodiment is not intended to limit the invention.Any those skilled in the art to which this invention pertains are not departing from this
Under the premise of the disclosed spirit and scope of invention, any modification and change can be made in the implementing form and in details,
But protection scope of the present invention still should be subject to the scope of the claims as defined in the appended claims.
Claims (11)
1. a kind of virtual remote control generation method, it is characterized in that, comprising:
The image information in face where obtaining the upper each physical button of entity remote control；
Described image information is parsed, the generation virtual remote control key page, it is each virtual on the virtual remote control key page
The layout of key is corresponding with the physical button layout that the entity is remotely controlled；
The click information of the virtual key is successively received, and begins listening for infrared signal, by received infrared signal and is clicked
Virtual key binding, it is described until the infrared signal of each virtual key binds completion on the virtual remote control key page
Received infrared signal is to press infrared signal caused by physical button corresponding with the virtual key.
2. according to the method described in claim 1, it is characterized in that, it is described obtain the upper each physical button of entity remote control where face figure
As the step of information includes:
The image information in face where transferring the upper each physical button of image collecting device shooting entity remote control of smart machine.
3. according to the method described in claim 1, it is characterized in that, it is described obtain the upper each physical button of entity remote control where face figure
As the step of information includes:
The image memory device of smart machine is transferred to obtain described image information.
4. method according to any one of claim 1-3, it is characterized in that, it is described that described image information is parsed,
Generate the virtual remote control key page the step of include:
Identify the image of each physical button in described image information, orientation and distance between each physical button；
According to the orientation and distance between each physical button, the virtual remote control key page is generated.
5. according to the method described in claim 4, it is characterized in that, it is raw according to the orientation and distance between each physical button
Include: at the step of virtual remote control key page
Receive the customized virtual key pictorial information of user；
According to the orientation and distance between the customized virtual key pictorial information of user, each physical button, generates virtual remote control and press
The key page.
6. according to the method described in claim 4, it is characterized in that, it is raw according to the orientation and distance between each physical button
Include: at the step of virtual remote control key page
User is received to the modification virtual key pictorial information after the amending image of each physical button in described image information；According to
The orientation and distance between virtual key pictorial information, each physical button are modified, the virtual remote control key page is generated.
7. according to the method described in claim 4, it is characterized in that, it is raw according to the orientation and distance between each physical button
Include: at the step of virtual remote control key page
According to the orientation and distance between the image of physical button each in described image information, each physical button, generate virtual distant
Control the key page.
8. a kind of storage medium, is stored thereon with program, wherein realize that claim 1-7 such as appoints when program is executed by processor
Virtual remote control generation method described in one.
9. a kind of virtual remote control generates system, it is characterized in that, comprising:
Image capture module, the image information for face where acquiring the upper each physical button of entity remote control；
Virtual remote control generation module, for parsing to described image information, the generation virtual remote control key page is described virtual
The layout of each virtual key is corresponding with the physical button layout that the entity is remotely controlled on the remote keying page；And for successively connecing
When receiving the click information of the virtual key, infrared signal is begun listening for, by the virtual key of received infrared signal and click
Binding, until the infrared signal of each virtual key binds completion on the virtual remote control key page, it is described received infrared
Signal is to press infrared signal caused by physical button corresponding with the virtual key.
10. system according to claim 9, it is characterized in that, the virtual remote control generation module is integrally disposed in intelligence and sets
In standby.
11. system according to claim 10, it is characterized in that, the virtual remote control generation module is to be arranged in smart phone
In APP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910870780.8A CN110517476A (en) | 2019-09-16 | 2019-09-16 | Virtual remote control generation method, system and storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910870780.8A CN110517476A (en) | 2019-09-16 | 2019-09-16 | Virtual remote control generation method, system and storage medium |
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| CN110517476A true CN110517476A (en) | 2019-11-29 |
Family
ID=68632437
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| CN201910870780.8A Pending CN110517476A (en) | 2019-09-16 | 2019-09-16 | Virtual remote control generation method, system and storage medium |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111949195A (en) * | 2020-09-02 | 2020-11-17 | 深圳市康冠智能科技有限公司 | Touch control method and device for liquid crystal display television, intelligent equipment and storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882047A (en) * | 2009-05-05 | 2010-11-10 | 三竹资讯股份有限公司 | On-screen virtual keyboard system |
| CN103037092A (en) * | 2012-12-15 | 2013-04-10 | 广东长虹电子有限公司 | Design method for remotely controlling household appliances through smart phone |
| CN103531015A (en) * | 2013-10-08 | 2014-01-22 | 海信集团有限公司 | Method for realizing remote control function, and electronic device thereof |
| CN105096579A (en) * | 2015-08-05 | 2015-11-25 | 杭州古北电子科技有限公司 | Infrared intelligent remote control system and method |
| CN105608869A (en) * | 2015-12-30 | 2016-05-25 | 广州艾想电子科技有限公司 | Method and device for remotely controlling application unit |
| CN105872817A (en) * | 2015-11-18 | 2016-08-17 | 乐视致新电子科技（天津）有限公司 | Virtual key and physical key cooperative processing method and device, and smart television |
| CN106781419A (en) * | 2016-12-01 | 2017-05-31 | 华为技术有限公司 | A kind of mobile terminal and remotely controlled method |
-
2019
- 2019-09-16 CN CN201910870780.8A patent/CN110517476A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882047A (en) * | 2009-05-05 | 2010-11-10 | 三竹资讯股份有限公司 | On-screen virtual keyboard system |
| CN103037092A (en) * | 2012-12-15 | 2013-04-10 | 广东长虹电子有限公司 | Design method for remotely controlling household appliances through smart phone |
| CN103531015A (en) * | 2013-10-08 | 2014-01-22 | 海信集团有限公司 | Method for realizing remote control function, and electronic device thereof |
| CN105096579A (en) * | 2015-08-05 | 2015-11-25 | 杭州古北电子科技有限公司 | Infrared intelligent remote control system and method |
| CN105872817A (en) * | 2015-11-18 | 2016-08-17 | 乐视致新电子科技（天津）有限公司 | Virtual key and physical key cooperative processing method and device, and smart television |
| CN105608869A (en) * | 2015-12-30 | 2016-05-25 | 广州艾想电子科技有限公司 | Method and device for remotely controlling application unit |
| CN106781419A (en) * | 2016-12-01 | 2017-05-31 | 华为技术有限公司 | A kind of mobile terminal and remotely controlled method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111949195A (en) * | 2020-09-02 | 2020-11-17 | 深圳市康冠智能科技有限公司 | Touch control method and device for liquid crystal display television, intelligent equipment and storage medium |
| CN111949195B (en) * | 2020-09-02 | 2021-08-17 | 深圳市康冠智能科技有限公司 | Touch control method and device for liquid crystal display television, intelligent equipment and storage medium |
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Application publication date: 20191129 |