CN102681945A - Method for implementing embedded type pointer virtual instrument - Google Patents
Method for implementing embedded type pointer virtual instrument Download PDFInfo
- Publication number
- CN102681945A CN102681945A CN2012101360363A CN201210136036A CN102681945A CN 102681945 A CN102681945 A CN 102681945A CN 2012101360363 A CN2012101360363 A CN 2012101360363A CN 201210136036 A CN201210136036 A CN 201210136036A CN 102681945 A CN102681945 A CN 102681945A
- Authority
- CN
- China
- Prior art keywords
- pointer
- pixel
- picture
- data
- instrument
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Image Processing (AREA)
Abstract
The invention discloses a method for implementing an embedded type pointer virtual instrument. The method at least comprises the steps of producing a digital dial picture and instrument pictures of different angles; saving pixel value data of the produced digital dial picture into a storage; acquiring digital pointer structure data of different angles by using instrument pictures of different angles and saving the digital pointer structure data into the storage; displaying a pointer-free data dial picture which is read out from the storage and enabling the picture to serve as a background; enabling a dynamic instrument to start displaying at a current angle position of a pointer; acquiring real-time electrical information which is required to be displayed by the pointer; determining the corresponding pointer in a pointer picture library according to the electrical information which is required to be indicated by the pointer; and enabling a system to read out pointer structural body data of the pointer at corresponding positions from the storage, and displaying a pointer picture corresponding to the pointer. According to the method, only a few effective data of a large amount of pointer pictures are required to be stored, data memory quantity is greatly reduced, and a large amount of system internal memory is saved.
Description
Technical field
The present invention relates to a kind of virtual instrument implementation method, be specifically related to a kind of embedded pointer virtual instrument implementation method.
Background technology
The introducing of embedded technology makes instrument and meter develop towards the direction of automation and intelligentification, and this has become a kind of trend of current instrument and meter system.Nowadays, the embedded type virtual instrument is also closely bound up with people's productive life, such as automotive field, avionics system passenger cabin demonstration field etc.Traditional embedded pointer virtual instrument is realized through figure layer substitute mode and software algorithm analog form.The software algorithm analog form is realized virtual instrument programmed algorithm more complicated, shows that real-time causes flating inadequately, and dynamic effect can't be accomplished true to nature, and display frame is more coarse.Figure layer replacement implementation is to need the dial plate and the pointer picture of storage pointer instrument in internal memory in advance; Static dial plate image is as background; The pointer picture of motion is used as prospect, through the continuous dynamic rotate effect of realizing virtual instrument with pointer position in the pointer foreground picture replacement dial plate background picture.Traditional embedded pointer virtual instrument implementation can reach rendering effect true to nature, but prerequisite is the variation corresponding to each pointer angle, all need store a two field picture.If once need the each rotation of pointer, pointer traversal 360 deg just need be stored the picture of 360 pointer different angles in advance in internal memory.From just finding out that here needed memory span is huge, this is undoubtedly a great challenge for the embedded system of the memory-limited that receives factor affecting such as cost, volume.
Summary of the invention
To the deficiency of prior art, the present invention is a kind of embedded pointer virtual instrument implementation method, so as to save Installed System Memory, enhanced system shows real-time, makes that the instrument display effect is more true to nature, exhibit stabilization improves.
In order to realize above-mentioned task, the present invention adopts following technical scheme: a kind of embedded pointer virtual instrument implementation method is characterized in that: comprise the steps: at least
Step 100: make digital dial plate picture and the instrument picture that satisfies different angles;
Step 101: the pixel value data of the digital dial plate picture that will make deposit in the storer;
Step 102: use the instrument picture of different angles to obtain the pointer numeric structure data that satisfy different angles, and it is deposited in the storer;
Step 103: the no pointer tables of data dish picture that from storer, reads shows as a setting; System only need call once, because background is static, does not need dynamic real-time to refresh;
Step 104: dynamically instrument begins in current angle position to show from pointer;
Step 105: obtain the electrical information that needs pointer to show in real time; Obtain the analog quantity information that needs instrument to show from the external world, convert analog quantity information into digital information, the electrical information that the pointer that can obtain us needs is indicated through the A/D conversion;
Step 106: the electrical information according to needing the pointer indication is confirmed corresponding pointer picture library pointer;
Step 107: reading pointer is in the pointer structure volume data of correspondence position from storer in system, and the pointer picture that pointer is corresponding shows.
Described step 100 is to make needed digital dial plate picture and the instrument picture that satisfies different angles through the GLstudio tool software.
The pixel value data of the digital dial plate picture that described step 101 will be made deposit the rgb pixel Value Data that is to use MATLAB software to obtain our needed dial plate picture in the storer in.
Described step 102 pointer data storage format is to comprise: the data 501 during initial angle, the data 502 when maximum angle is arrived in needle deflection; All angle-datas 506 of pointer traversal, the storage of pointer picture only need store the pixel number certificate that pixel changes.The position of the pixel that changes when rotating to each angle to pointer with change after pixel value, leave in the storer with the form of structure array.
The form deposit method of described structure array is:
A) obtain the pixel value that a width of cloth does not have the instrument picture of pointer;
B) obtain the pixel value of width of cloth pointer instrument picture at an arbitrary position;
C) use MATLAB software to find out the number and the position of all pixel value pixels with different points in two width of cloth images, pixel value pixels with different point is the residing point of pointer in two width of cloth images;
D) position of the number of statistical pixel values difference, each pixel and pixel value;
E) create structure struct point{int m; Int a [] [2]; Int rgb [] [3] }; Wherein, m (503) is the number of pixel value difference, in internal memory, takies a byte; M pixel of a [] [2] (504) record be in the residing position of picture in its entirety, i.e. coordinate X, Y, and each pixel takies two bytes; R, G, the B value of m pixel of rgb [] [3] (505) storage, each pixel takies three bytes; When if pointer is single gray-scale value, promptly the value of each pixel is all identical and be same fixed value.
Described step 104 performing step is following:
Step 701: reading pointer is in the structure data of initial angle position from storer;
Step 702: from structure data a [] [2], read a pixel in the residing positional information of picture in its entirety, i.e. coordinate X, Y are with the position of pixel that need to confirm to show;
Step 703: from structure data rgb [] 3] read the pixel value information of this pixel, i.e. the R of pixel, G, B value, and give above-mentioned specified coordinate position;
Step 704: the number information of the pixel that reading pointer need show when initial position from structure data m;
Step 705: whether the pixel that judgement needs to show has shown; Be execution in step 707; Not, execution in step 706;
Step 706: from the structure data, read the information that the next one needs the pixel of demonstration; Return step 702;
Step 707: pointer all pixels demonstrations when initial position finish EOP (end of program).
Described step 105 is to obtain the analog quantity information that needs instrument to show from the external world, converts analog quantity information into digital information through the A/D conversion, the electrical information that the pointer that can obtain us needs is indicated.
The invention has the advantages that: for the embedded system of memory-limited, just can realize enriching, the dynamic display interface of pointer virtual instrument true to nature through storing a spot of picture element.The storage mode of simultaneously simple structure array makes and realizes dynamically fairly simple, the highly versatile of program of demonstration, can also improve the stability and the real-time of demonstration.It has stronger versatility, can be widely used in the virtual instrument of various range abilities on the various embedded platforms.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done further explain:
Fig. 1 is that the dynamic pointer of the embodiment of the invention 1 is realized program flow diagram;
Fig. 2 is that the dynamic pointer of the embodiment of the invention 1 is realized program flow diagram;
Fig. 3 is dial plate of the present invention and pointer picture synoptic diagram;
Fig. 4 is the pointer image data storage format of traditional approach;
Fig. 5 is a pointer data storage format of the present invention;
The synoptic diagram that Fig. 6 shows for the traditional approach pointer;
Fig. 7 is a pointer Display Realization process flow diagram of the present invention.
Embodiment
The present invention has two kinds of embodiments, is specially embodiment 1 and embodiment 2.The implementation that embodiment 1 dynamically shows for the embedded pointer virtual instrument of the present invention, embodiment 2 can be used as the user realizes pointer virtual instrument in general embedded system subroutine.
Embodiment 1:
With reference to Fig. 1, the dynamic pointer of the embodiment of the invention 1 is realized program flow diagram.Fig. 3 is dial plate of the present invention and pointer picture synoptic diagram, and 301 is the dial plate picture, and 302 is the pointer picture.The present invention all is suitable for for any colour picture, and hypothesis dial plate dimension of picture is 100*100 in the present embodiment, and the pointer dimension of picture is 60*60.
A kind of embedded pointer virtual instrument implementation method is characterized in that: comprise the steps: at least
Step 100: make digital dial plate picture and the instrument picture that satisfies different angles;
Here we use the GLstudio tool software to make our needed digital dial plate picture and the instrument picture that satisfies different angles.
Step 101: the pixel value data of the digital dial plate picture that will make deposit in the storer; Use MATLAB software to obtain the rgb pixel Value Data of our needed dial plate picture; Each pixel in the picture has promptly changed into a concrete numerical value; The pixel value of each color channel of RGB adopts 8 scale-of-two to represent; The denotable integer range of each byte is 0 ~ 255, and promptly each pixel takies three bytes in internal memory; Because data volume is bigger, we can not adjust in manual work, so adopt a form adjustment of C language program, are adjusted to the array form that we want through this program, so just deposit the form of a width of cloth dial plate picture with array in the storer in;
Step 102: use the instrument picture of different angles to obtain the pointer numeric structure data that satisfy different angles, and it is deposited in the storer; The obtaining of pointer data of the present invention, storage means and storage format and traditional approach are very different;
With reference to Fig. 4, the pointer image data storage format of traditional approach.Image data is stored by row in internal memory; 401 is data line totally 60 pixels of pointer picture; 402 is the first trip datarams address of first width of cloth pointer picture; 403 RGB are three bytes of pixel value data occupancy of the pixel of storage, and 404 is first width of cloth pointer image data totally 60 row, and 405 is last pointer picture totally 60 row.The maximum range of supposing instrument is M, and minimum resolution is S, and gauge pointer has N kind state: N=M/S, and at this moment the user opens the pointer picture according to own actual needs storage N.Here the range of supposing instrument is 180, and minimum resolution is 2, and this moment, gauge pointer had 90 (N=90) kind state.Storing 90 pointer picture committed memory spaces is 60 * 60 * 3 * 90=972000 ≈ 972KB, the memory headroom storing pointer data in a conventional manner and need be 972KB, taken a large amount of memory headrooms from the storage that can find out the pointer picture here.
With reference to Fig. 5, pointer data storage format of the present invention.501 is the data of pointer when initial angle, and 502 are the data of needle deflection when the maximum angle, 506 all angle-datas of traveling through for pointer.The storage of pointer picture only need store the pixel number certificate that pixel changes, and the position of the pixel that changes when rotating to each angle to pointer and pixel value leave in the storer with the form of structure array.Concrete grammar is:
A) obtain the pixel value that a width of cloth does not have the instrument picture of pointer;
B) obtain the pixel value of width of cloth pointer instrument picture at an arbitrary position;
C) use MATLAB software to find out the number and the position of all pixel value pixels with different points in two width of cloth images, pixel value pixels with different point is the residing point of pointer in two width of cloth images;
D) position of the number of statistical pixel values difference, each pixel and pixel value;
E) create structure struct point{int m; Int a [] [2]; Int rgb [] [3] }; Wherein, m (503) is the number of pixel value difference, in internal memory, takies a byte; M pixel of a [] [2] (504) record be in the residing position of picture in its entirety, i.e. coordinate X, Y, and each pixel takies two bytes; R, G, the B value of m pixel of rgb [] [3] (505) storage, each pixel takies three bytes; When if pointer is single gray-scale value, promptly the value of each pixel is all identical and be same fixed value, and structure just can design struct point{int m like this; Int a [] [2]; Int rgb}; Wherein, m, a [] [2] are with the above, and rgb is that the fixed value of a byte can just be given assignment when program initialization, and all pixels are shared this pixel value in internal memory, only is used in and takies a byte in the internal memory; The structure of design is just simpler like this, and memory data output still less.
A structure variable can only be deposited a pointer image data, all need store in different angles for pointer, so also need construct a structure build array struct point s [], so just can store the picture of 90 different pointer angles.
We calculate committed memory situation in this case: m takies a byte in a structure, and a [] [2] takies two bytes, and rgb [] [3] takies three bytes.If there are 200 pixels to change at most at every turn; Store 90 shared memory headrooms of pointer picture and be (1+200 * (2+3)) * 90=90900 ≈ 91KB; Be about 1/10 of traditional approach from the memory space that can find out the pointer picture here, saved Installed System Memory greatly.If when pointer was single gray-scale value, storing 90 shared memory headrooms of pointer picture was (1+1+200 * 2) * 90=36180 ≈ 36KB, has saved bigger storage space, superiority is more obvious.
Step 103: the no pointer tables of data dish picture that from storer, reads shows as a setting; System only need call once, because background is static, does not need dynamic real-time to refresh;
Step 104: dynamically instrument begins in current angle position to show from pointer;
With reference to Fig. 6 A, Fig. 6 B, the synoptic diagram that the traditional approach pointer shows.Dial plate shows does not as a setting need dynamic refresh, and the pointer picture is as prospect.With the data of pointer present position in the pointer image data replacement dial plate background of different angles position, 601 is any three width of cloth pointer pictures when showing, 602 display positions of three width of cloth pointer pictures in dial plate for this reason.Pointer is replaced with the different pointer pictures that are stored in the internal memory when different angles, through successively foreground picture being replaced, just can realize dynamic display effect.
With reference to Fig. 7, pointer Display Realization process flow diagram of the present invention.Performing step is following:
1) 701: reading pointer is in the structure data of initial angle position from storer;
2) 702: from structure data a [] [2], read a pixel in the residing positional information of picture in its entirety, i.e. coordinate X, Y are with the position of pixel that need to confirm to show;
3) read the pixel value information of this pixel 703: from structure data rgb [] 3], i.e. the R of pixel, G, B value, and give above-mentioned specified coordinate position;
4) 704: the number information of the pixel that reading pointer need show when initial position from structure data m;
5) 705: whether the pixel that judgement needs to show has shown; Be execution in step 707; Not, execution in step 706;
6) 706: from the structure data, read the information that the next one needs the pixel of demonstration, return step 702;
7) 707: pointer all pixels demonstrations when initial position finish EOP (end of program).
Step 105: obtain the electrical information that needs pointer to show in real time; Obtain the analog quantity information that needs instrument to show from the external world, convert analog quantity information into digital information, the electrical information that the pointer that can obtain us needs is indicated through the A/D conversion;
Step 106: the electrical information according to needing the pointer indication is confirmed corresponding pointer picture library pointer;
Step 107: reading pointer is in the pointer structure volume data of correspondence position from storer in system, and the pointer picture that pointer is corresponding shows;
Step 108: the system call time delay subroutine shows a period of time with the pointer picture;
Step 109: program is returned and is detected the electrical information that next moment pointer needs again, and program turns back to step 105.
Embodiment 2: with embodiment 1 difference be exactly; Just finish behind the picture of the intact real-time pointer position of program display; The outside pointer change information of cycle detection always is so embodiment 2 can be used as the user realizes pointer virtual instrument in general embedded system subroutine.(with reference to Fig. 2)
Step 200: executive mode is with step 100;
Step 201: executive mode is with step 101;
Step 202: executive mode is with step 102;
Step 203: executive mode is with step 103;
Step 204: executive mode is with step 104;
Step 205: executive mode is with step 105;
Step 206: executive mode is with step 106;
Step 207: executive mode is with step 107;
Step 208: the pointer position picture shows completion, EOP (end of program) in real time.
As everyone knows, for pointer instrument, can be divided into two parts: dial plate and pointer.Dial plate is static, and pointer moves.Dial plate need not every frame later and refreshes in real time in adding scene to, no longer need more operation, and pointer needs continuous the renewal, can realize dynamic display effect.The implementation method of traditional embedded pointer virtual instrument is the picture in its entirety data storage that changes corresponding to each pointer angle in storer, can bring huge memory space like this.And in fact when gauge pointer deflects; Any variation can't take place in the dial plate overall background of instrument; Entire image has only the pixel value of few pixel to change; The position of the pixel that these change is the residing position of pointer just, therefore only needs the position and the pixel value of the pixel of record pointer present position.When data storage, only need store the position and the pixel value of vicissitudinous pixel few in the two field picture, give up a large amount of unnecessary redundant datas.With respect to entire image, vicissitudinous pixel is only a few after all, and this is very useful for saving Installed System Memory.For the dial plate image data, in internal memory, open up one section connected storage, with a width of cloth dial plate image data with the array stored in form in internal memory.Each width of cloth pointer image data is stored with the form of structure, and needing the data of storage is the number of vicissitudinous pixel, the position and the pixel value of pixel.With the stored in form pointer of the structure array set of diagrams sheet data when the different angles.When showing, at first from internal memory, read instrument dial plate image data as display background, the pixel number that reading pointer need show from the structure array data then, location of pixels and pixel value data when different angles.Pixel value data with same position in the pointer pixel value data replacement dial plate background of prospect just can make all angles that need show of pointer traversal through loop statement, can realize the dynamic effect of pointer instrument.
Claims (7)
1. an embedded pointer virtual instrument implementation method is characterized in that: comprise the steps: at least
Step 100: make digital dial plate picture and the instrument picture that satisfies different angles;
Step 101: the pixel value data of the digital dial plate picture that will make deposit in the storer;
Step 102: use the instrument picture of different angles to obtain the pointer numeric structure data that satisfy different angles, and it is deposited in the storer;
Step 103: the no pointer tables of data dish picture that from storer, reads shows as a setting; System only need call once, because background is static, does not need dynamic real-time to refresh;
Step 104: dynamically instrument begins in current angle position to show from pointer;
Step 105: obtain the electrical information that needs pointer to show in real time; Obtain the analog quantity information that needs instrument to show from the external world, convert analog quantity information into digital information, the electrical information that the pointer that can obtain us needs is indicated through the A/D conversion;
Step 106: the electrical information according to needing the pointer indication is confirmed corresponding pointer picture library pointer;
Step 107: reading pointer is in the pointer structure volume data of correspondence position from storer in system, and the pointer picture that pointer is corresponding shows.
2. a kind of embedded pointer virtual instrument implementation method according to claim 1 is characterized in that: described step 100 is to make needed digital dial plate picture and the instrument picture that satisfies different angles through the GLstudio tool software.
3. a kind of embedded pointer virtual instrument implementation method according to claim 1 is characterized in that: the pixel value data of the digital dial plate picture that described step 101 will be made deposit the rgb pixel Value Data that is to use MATLAB software to obtain our needed dial plate picture in the storer in.
4. a kind of embedded pointer virtual instrument implementation method according to claim 1; It is characterized in that: described step 102 pointer data storage format is to comprise: the data 501 during initial angle, the data 502 when maximum angle is arrived in needle deflection; All angle-datas 506 of pointer traversal; The storage of pointer picture only need store the pixel number certificate that pixel changes; The position of the pixel that changes when rotating to each angle to pointer and pixel value leave in the storer with the form of structure array.
5. a kind of embedded pointer virtual instrument implementation method according to claim 4, it is characterized in that: the form deposit method of described structure array is:
A) obtain the pixel value that a width of cloth does not have the instrument picture of pointer;
B) obtain the pixel value of width of cloth pointer instrument picture at an arbitrary position;
C) use MATLAB software to find out the number and the position of all pixel value pixels with different points in two width of cloth images, pixel value pixels with different point is the residing point of pointer in two width of cloth images;
D) position of the number of statistical pixel values difference, each pixel and pixel value;
E) create structure struct point{int m; Int a [] [2]; Int rgb [] [3] }; Wherein, m (503) is the number of pixel value difference, in internal memory, takies a byte; M pixel of a [] [2] (504) record be in the residing position of picture in its entirety, i.e. coordinate X, Y, and each pixel takies two bytes; R, G, the B value of m pixel of rgb [] [3] (505) storage, each pixel takies three bytes; When if pointer is single gray-scale value, promptly the value of each pixel is all identical and be same fixed value.
6. a kind of embedded pointer virtual instrument implementation method according to claim 1, it is characterized in that: described step 104 performing step is following:
Step 701: reading pointer is in the structure data of initial angle position from storer;
Step 702: from structure data a [] [2], read a pixel in the residing positional information of picture in its entirety, i.e. coordinate X, Y are with the position of pixel that need to confirm to show;
Step 703: from structure data rgb [] 3] read the pixel value information of this pixel, i.e. the R of pixel, G, B value, and give above-mentioned specified coordinate position;
Step 704: the number information of the pixel that reading pointer need show when initial position from structure data m;
Step 705: whether the pixel that judgement needs to show has shown; Be execution in step 707; Not, execution in step 706;
Step 706: from the structure data, read the information that the next one needs the pixel of demonstration; Return step 702;
Step 707: pointer all pixels demonstrations when initial position finish EOP (end of program).
7. a kind of embedded pointer virtual instrument implementation method according to claim 1; It is characterized in that: described step 105 is to obtain the analog quantity information that needs instrument to show from the external world; Convert analog quantity information into digital information through the A/D conversion, the electrical information that the pointer that can obtain us needs is indicated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210136036.3A CN102681945B (en) | 2012-05-04 | 2012-05-04 | Method for implementing embedded type pointer virtual instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210136036.3A CN102681945B (en) | 2012-05-04 | 2012-05-04 | Method for implementing embedded type pointer virtual instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102681945A true CN102681945A (en) | 2012-09-19 |
| CN102681945B CN102681945B (en) | 2014-11-26 |
Family
ID=46813907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210136036.3A Expired - Fee Related CN102681945B (en) | 2012-05-04 | 2012-05-04 | Method for implementing embedded type pointer virtual instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102681945B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106406360A (en) * | 2016-08-31 | 2017-02-15 | 惠州华阳通用电子有限公司 | Virtual instrument pointer rotation control method and device |
| CN106502542A (en) * | 2016-10-27 | 2017-03-15 | 中企动力科技股份有限公司 | A kind of pointer spinning solution and device |
| CN108227895A (en) * | 2017-07-26 | 2018-06-29 | 珠海市魅族科技有限公司 | One kind puts out screen display methods and terminal, computer installation and readable storage medium storing program for executing |
| CN108600211A (en) * | 2018-04-18 | 2018-09-28 | 惠州市德赛西威汽车电子股份有限公司 | A kind of method that automobile virtual instrument obtains upgrade file |
| CN108664302A (en) * | 2018-04-24 | 2018-10-16 | 东莞正扬电子机械有限公司 | The implementation method of the type pointer virtual instrument of high performance-price ratio |
| CN110059529A (en) * | 2017-12-13 | 2019-07-26 | 台达电子工业股份有限公司 | The recognition methods and its image capturing equipment of the direction of the pointer of analog measurement device |
| CN111105477A (en) * | 2019-11-25 | 2020-05-05 | 航天科技控股集团股份有限公司 | Method for drawing 2D virtual pointer of full liquid crystal instrument |
| CN112085645A (en) * | 2020-09-07 | 2020-12-15 | 欧科佳（上海）汽车电子设备有限公司 | Image acceleration implementation method based on embedded processor |
| CN112116678A (en) * | 2020-08-09 | 2020-12-22 | 东风电驱动系统有限公司 | Irregular virtual pointer display method for liquid crystal instrument and liquid crystal instrument |
| CN114155452A (en) * | 2021-11-29 | 2022-03-08 | 江苏红光仪表厂有限公司 | Information identification method for industrial automation instrument |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020020569A1 (en) * | 1999-03-31 | 2002-02-21 | Marc Eigenmann | Display unit for a measuring instrument |
| US20080238818A1 (en) * | 2007-03-27 | 2008-10-02 | Denso Corporation | Display device |
-
2012
- 2012-05-04 CN CN201210136036.3A patent/CN102681945B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020020569A1 (en) * | 1999-03-31 | 2002-02-21 | Marc Eigenmann | Display unit for a measuring instrument |
| US20080238818A1 (en) * | 2007-03-27 | 2008-10-02 | Denso Corporation | Display device |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106406360A (en) * | 2016-08-31 | 2017-02-15 | 惠州华阳通用电子有限公司 | Virtual instrument pointer rotation control method and device |
| CN106406360B (en) * | 2016-08-31 | 2019-11-08 | 惠州华阳通用电子有限公司 | A kind of virtual instrument pointer method of controlling rotation and device |
| CN106502542A (en) * | 2016-10-27 | 2017-03-15 | 中企动力科技股份有限公司 | A kind of pointer spinning solution and device |
| CN108227895A (en) * | 2017-07-26 | 2018-06-29 | 珠海市魅族科技有限公司 | One kind puts out screen display methods and terminal, computer installation and readable storage medium storing program for executing |
| CN110059529A (en) * | 2017-12-13 | 2019-07-26 | 台达电子工业股份有限公司 | The recognition methods and its image capturing equipment of the direction of the pointer of analog measurement device |
| CN108600211A (en) * | 2018-04-18 | 2018-09-28 | 惠州市德赛西威汽车电子股份有限公司 | A kind of method that automobile virtual instrument obtains upgrade file |
| CN108664302A (en) * | 2018-04-24 | 2018-10-16 | 东莞正扬电子机械有限公司 | The implementation method of the type pointer virtual instrument of high performance-price ratio |
| CN111105477A (en) * | 2019-11-25 | 2020-05-05 | 航天科技控股集团股份有限公司 | Method for drawing 2D virtual pointer of full liquid crystal instrument |
| CN112116678A (en) * | 2020-08-09 | 2020-12-22 | 东风电驱动系统有限公司 | Irregular virtual pointer display method for liquid crystal instrument and liquid crystal instrument |
| CN112116678B (en) * | 2020-08-09 | 2023-08-22 | 东风电驱动系统有限公司 | Irregular virtual pointer display method of liquid crystal instrument and liquid crystal instrument |
| CN112085645A (en) * | 2020-09-07 | 2020-12-15 | 欧科佳（上海）汽车电子设备有限公司 | Image acceleration implementation method based on embedded processor |
| CN114155452A (en) * | 2021-11-29 | 2022-03-08 | 江苏红光仪表厂有限公司 | Information identification method for industrial automation instrument |
| CN114155452B (en) * | 2021-11-29 | 2022-11-15 | 江苏红光仪表厂有限公司 | Information identification method for industrial automation instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102681945B (en) | 2014-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102681945A (en) | Method for implementing embedded type pointer virtual instrument | |
| US5295235A (en) | Polygon engine for updating computer graphic display employing compressed bit map data | |
| CN100481890C (en) | Image special effect device, graphic processor and recording medium | |
| CN103810742B (en) | Image rendering method and system | |
| KR100191112B1 (en) | Display apparatus and method of operating such an apparatus | |
| KR100411534B1 (en) | Video data generation method, generation device and generation circuit, and game playback device | |
| JPH0916144A (en) | System and method for triangle raster with two-dimensionallyinterleaved frame buffer | |
| CN1713264A (en) | Digital OSD controller based on FRGA | |
| CN101872492A (en) | Multi-angle map implementation method of three-dimensional simulation city | |
| CN103247068B (en) | A kind of rendering intent and device | |
| CN108122196B (en) | Texture mapping method and device for picture | |
| CN103632643B (en) | Image data processing circuit and display system | |
| CN101729919B (en) | System for full-automatically converting planar video into stereoscopic video based on FPGA | |
| CN109035383A (en) | A kind of method for drafting, device and the computer readable storage medium of volume cloud | |
| CN101303849B (en) | Method and apparatus for rapidly displaying lapped arbitrary shape rarefaction pattern without twinkling | |
| KR20210088588A (en) | street field color palette | |
| CN104385920B (en) | Realization method of pointer type virtual instrument panel | |
| CN102110308A (en) | Three-dimensional solid graph display system and method | |
| CN109636894B (en) | Dynamic three-dimensional thermodynamic calculation method and system based on pixel rasterization | |
| US20200090575A1 (en) | Data processing systems | |
| US20160307294A1 (en) | Systems and Methods for Displaying Patterns of Recurring Graphics on Digital Maps | |
| JP5823052B2 (en) | Graphics drawing device | |
| CN105989568A (en) | OpenGL-based local refresh method and system | |
| CN100583162C (en) | A forward texture mapping 3d graphics system | |
| CN103514628B (en) | A kind of based on 3D modeling and the image non-linear geometric correction method of position table look up techniques |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20150504 |
|
| EXPY | Termination of patent right or utility model |