CN105573575A - In-vehicle interconnection cursor identification method - Google Patents
In-vehicle interconnection cursor identification method Download PDFInfo
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- CN105573575A CN105573575A CN201410528814.2A CN201410528814A CN105573575A CN 105573575 A CN105573575 A CN 105573575A CN 201410528814 A CN201410528814 A CN 201410528814A CN 105573575 A CN105573575 A CN 105573575A
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Abstract
The present invention relates to an in-vehicle interconnection cursor identification method. The method comprises: S1. interconnecting a vehicle-mounted system and a mobile phone; S2. checking whether sample data is saved in a designated area, if so, carrying out S4, and if not, carrying out the next step; S3. after a cursor jumps to a central area, collecting and processing graphics pixels on the central area of a screen in the vehicle-mounted system, and extracting partial data and storing the data into the designated area; S4. waiting for a next operation; and S5. matching and identifying the cursor. Compared with the prior art, the method disclosed by the present invention has the following advantages that: 1. through automatic identification of the cursor, an accurate position of the cursor can be determined, and setting of subsequent clicks by a vehicle-mounted system can be facilitated; 2. uncontrollable circumstances when the cursor enters an application can be effectively alleviated; and 3. the problem of large deviation of coordinates after clicking on the screen can be effectively improved, and accuracy of clicking on the screen can be improved.
Description
Technical field
The present invention relates to vehicle electric field, specifically a kind of vehicle-mounted interconnected cursor identification method.
Background technology
In current existing vehicle-mounted interconnected product, in mobile phone and car machine interconnection process, an indispensable part is Bidirectional mutual controlled.At manipulation mobile phone terminal, screen synch conversion on engine end; On the contrary, manipulation engine end, the screen of mobile phone terminal also makes synchronous conversion simultaneously.When manipulating mobile phone, car machine screen is the attaching screen of mobile phone screen, and synchronous conversion is an inevitable characteristic of projection.And when manipulating on engine end, the operation of engine end is equivalent to the operation of mouse, mobile phone terminal screen is display screen.Now, if synchronous conversion will be done on mobile phone, need to realize mobile phone terminal HID(HumanInterfaceDevice, human interface device) function, in current Apple series mobile phone, click a certain icon when entering related application, current cursor can jump to the central point of screen automatically, because HID cannot know whether current cursor jumps to screen centre position and cannot know cursor when redirect in other words, now cursor is uncontrollable, there is the uncertainty of position after an automatic redirect.And have very important relation to the controllability of cursor and the accuracy of screen taps, if after each cursor jumps to center, all cannot know the accurate location of current cursor, then follow-up click parameter cannot set, and easily causes the problem that the grid deviation after clicking screen is large.
Summary of the invention
For above-mentioned prior art, the present invention, for solving the problems of the technologies described above, provides a kind of vehicle-mounted interconnected cursor identification method, can judge the accurate location of cursor, effectively can improving cursor entering the uncontrollable situation of application, can arrive the effect precisely identified.
In order to solve the problem, vehicle-mounted interconnected cursor identification method of the present invention, the method comprises:
S1. car hand set is interconnected;
S2. inquire about appointed area and whether preserve sample data, perform step S4 if having; If nothing, perform next step operation;
S3., after waiting for that cursor jumps to central area, gather and process the graphical pixel point of Che Ji screen center section, Extraction parts data are also saved to appointed area;
S4. next operation is waited for;
S5. match cognization is carried out to cursor.
Preferably, described step S3 comprises the steps:
S301., after cursor jumps to central area, the graphical pixel point of Che Ji screen center section is gathered;
S302. export the coordinate of car machine screen, analyze cursor pixel point, filter out qualified all pixel coordinates;
S303. the coordinate filtered out is carried out curve fitting;
S304. according to fitting result, judge that whether the coordinate data gathered is effective, if effectively, then select as sample data, Extraction parts sample data is also preserved, otherwise, return step S301.
Preferably, described step S5 comprises the steps:
S501. at interval of N millisecond run-down center assignment graph area pixel point;
S502. contrast sample data and the scan-data of extraction, when similarity is greater than 60%, judge herein as cursor position, end of identification; Otherwise judge not to be cursor position herein, return step S501.
Preferably, N interval time described in described step S501 is less than 500 milliseconds.
Preferably, the number of samples of described collection is between 200-400.
Preferably, the extraction principle of the part sample data of described extraction is extract the sample data of the top of figure, bottom, left part and right part.
Compared with prior art, tool of the present invention has the following advantages:
One, by the automatic identification of cursor, the accurate location of cursor can be judged, facilitate car machine system to the setting of follow-up click.
Two, cursor uncontrollable situation after entering application is effectively improved.
Three, effectively improve the large problem of the grid deviation after clicking screen, improve and click screen accuracy.
Accompanying drawing explanation
Fig. 1 is vehicle-mounted interconnected cursor identification method process flow diagram of the invention process.
Fig. 2 be data available time the curve image that obtains.
Embodiment
In order to allow those skilled in the art understand technical scheme of the present invention better, below in conjunction with accompanying drawing, the present invention is further elaborated.
The specific embodiment of the present invention as shown in Figure 1, a kind of vehicle-mounted interconnected cursor identification method, the method comprises:
S1. car hand set is interconnected;
S2. inquire about appointed area and whether preserve sample data, perform step S4 if having; If nothing, perform next step operation;
S3., after waiting for that cursor jumps to central area, gather and process the graphical pixel point of Che Ji screen center section, Extraction parts data are also saved to appointed area;
Step S3 comprises the steps:
S301., after cursor jumps to central area, the graphical pixel point of Che Ji screen center section is gathered.
S302. export the coordinate of car machine screen, analyze cursor pixel point, filter out qualified all pixel coordinates.
In the present embodiment, for blueness.The graphical pixel point collected is Pixel (A, B, C, D), wherein, when parameter A, B, C, D meet 180<A<255 simultaneously, when 180<B<255,0<C<10, D=0, think that current pixel point is eligible, can blueness be judged to be.The color settings of cursor is not limited to blueness herein, and the otherness of the color of cursor and screen background color is more conducive to more greatly the process of view data.
After filtering out blue pixel, export the coordinate of the car machine screen corresponding to above pixel, and store.
It should be noted that, the form of storage can be multiple, as long as can carry out the analyzing and processing of data, does not limit at this.
S303. the coordinate filtered out is carried out curve fitting.
S304. according to fitting result, judge that whether the coordinate data gathered is effective, if effectively, then select as sample data, Extraction parts sample data is also preserved, otherwise, return step S301.
The number of samples gathered controls between 200-400 as far as possible.When the image of curve and the image of cursor consistent time, think gather data can use.In the present embodiment, the shape of cursor adopts annular, then by the image that obtains after curve as shown in Figure 2, now show to judge that the data gathered can be used.
The extraction principle of part sample data extracted is extract the sample data of the top of figure, bottom, left part and right part.
In the present embodiment, because the shape of cursor adopts annular, then according to the top of annulus, bottom, left part, right part, by scope Extraction parts sampling number certificate, the sample data table of extraction as shown in Table 1.Extraction parts sample data sampling number is 169.
Table one sample data table
It should be noted that, after the sample data herein obtained can be used as, the normal data that cursor repeatedly identifies is used.
S4. next operation is waited for.
S5. match cognization is carried out to cursor.
Step S5 comprises the steps:
S501. at interval of N millisecond run-down center assignment graph area pixel point.
Herein, N interval time of scanning is less than 500 milliseconds, i.e. 0<N<500ms.
S502. contrast sample data and the scan-data of extraction, when similarity is greater than 60%, judge herein as cursor position, end of identification; Otherwise judge not to be cursor position herein, return step S501.
Data in contrast sample's tables of data, when similarity reaches more than 60%, when namely similar number of samples is more than or equal to 100, can determine to be cursor position herein.The judgement numerical value that similar number of samples is more than or equal to 100 is herein determined according to the sampling number 169 of the part sample data extracted.
It should be noted that, in the present embodiment, do not launch the place of carrying out setting forth in detail, being those skilled in the art can realize according to existing common practise and practical experience.
The above is better embodiment of the present invention, not does any pro forma restriction to the present invention.It should be noted that; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the present invention, but these change and are out of shape the protection domain that all should belong to the claim appended by the present invention.
Claims (6)
1. a vehicle-mounted interconnected cursor identification method, is characterized in that: the method comprises:
S1. car hand set is interconnected;
S2. inquire about appointed area and whether preserve sample data, if perform step S4; If not, next step operation is performed;
S3., after waiting for that cursor jumps to central area, gather and process the graphical pixel point of Che Ji screen center section, Extraction parts data are also saved to appointed area;
S4. next operation is waited for;
S5. match cognization is carried out to cursor.
2. vehicle-mounted interconnected cursor identification method according to claim 1, it is characterized in that, described step S3 comprises the steps:
S301., after cursor jumps to central area, the graphical pixel point of Che Ji screen center section is gathered;
S302. export the coordinate of car machine screen, analyze cursor pixel point, filter out qualified all pixel coordinates;
S303. the coordinate filtered out is carried out curve fitting;
S304. according to fitting result, judge that whether the coordinate data gathered is effective, if effectively, then select as sample data, Extraction parts sample data is also preserved, otherwise, return step S301.
3. vehicle-mounted interconnected cursor identification method according to claim 1, it is characterized in that, described step S5 comprises the steps:
S501. at interval of N millisecond run-down center assignment graph area pixel point;
S502. contrast sample data and the scan-data of extraction, when similarity is greater than 60%, judge herein as cursor position, end of identification; Otherwise judge not to be cursor position herein, return step S501.
4. vehicle-mounted interconnected cursor identification method according to claim 3, is characterized in that, N interval time described in described step S501 is less than 500 milliseconds.
5. the vehicle-mounted interconnected cursor identification method according to any one of claim 1-4, it is characterized in that, the number of samples of described collection is between 200-400.
6. vehicle-mounted interconnected cursor identification method according to claim 5, is characterized in that, the extraction principle of the part sample data of described extraction is extract the sample data of the top of figure, bottom, left part and right part.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410528814.2A CN105573575B (en) | 2014-10-10 | 2014-10-10 | A kind of cursor identification method of vehicle-mounted interconnection |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410528814.2A CN105573575B (en) | 2014-10-10 | 2014-10-10 | A kind of cursor identification method of vehicle-mounted interconnection |
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| CN105573575A true CN105573575A (en) | 2016-05-11 |
| CN105573575B CN105573575B (en) | 2019-07-16 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201681362U (en) * | 2010-04-13 | 2010-12-22 | 深圳海国多媒体科技有限公司 | Operating device of vehicle system, vehicle system and vehicle |
| CN102231093A (en) * | 2011-06-14 | 2011-11-02 | 伍斌 | Screen locating control method and device |
| CN102780778A (en) * | 2012-07-23 | 2012-11-14 | 深圳市航盛电子股份有限公司 | Method for mutual control of vehicle-mounted intelligent system and intelligent terminal |
| US20130187875A1 (en) * | 2012-01-20 | 2013-07-25 | Masatoshi Matsuoka | Operation input system |
| CN103809886A (en) * | 2012-11-12 | 2014-05-21 | 腾讯科技（深圳）有限公司 | Cursor positioning method and mobile terminal |
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2014
- 2014-10-10 CN CN201410528814.2A patent/CN105573575B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201681362U (en) * | 2010-04-13 | 2010-12-22 | 深圳海国多媒体科技有限公司 | Operating device of vehicle system, vehicle system and vehicle |
| CN102231093A (en) * | 2011-06-14 | 2011-11-02 | 伍斌 | Screen locating control method and device |
| US20130187875A1 (en) * | 2012-01-20 | 2013-07-25 | Masatoshi Matsuoka | Operation input system |
| CN102780778A (en) * | 2012-07-23 | 2012-11-14 | 深圳市航盛电子股份有限公司 | Method for mutual control of vehicle-mounted intelligent system and intelligent terminal |
| CN103809886A (en) * | 2012-11-12 | 2014-05-21 | 腾讯科技（深圳）有限公司 | Cursor positioning method and mobile terminal |
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