CN204765560U - Eyesight testing arrangement based on gesture recognition - Google Patents
Eyesight testing arrangement based on gesture recognition Download PDFInfo
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- CN204765560U CN204765560U CN201520329252.9U CN201520329252U CN204765560U CN 204765560 U CN204765560 U CN 204765560U CN 201520329252 U CN201520329252 U CN 201520329252U CN 204765560 U CN204765560 U CN 204765560U
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- 238000012360 testing method Methods 0.000 title claims abstract description 38
- 230000004438 eyesight Effects 0.000 title abstract description 23
- 238000012545 processing Methods 0.000 claims abstract description 10
- 239000004973 liquid crystal related substance Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 9
- 238000005070 sampling Methods 0.000 claims description 9
- 230000000737 periodic effect Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000003993 interaction Effects 0.000 description 2
- 230000004304 visual acuity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 210000000697 sensory organ Anatomy 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- 230000001960 triggered effect Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
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Abstract
The utility model provides an eyesight testing arrangement based on gesture recognition, eyesight testing arrangement includes gesture data acquisition and handles the end and the applied end of gesture, CMOS image sensor, first singlechip, a bluetooth module and a power module are drawn together to gesture data acquisition and processing hand ladle, CMOS image sensor with first singlechip is connected, first singlechip with a bluetooth module connects, the gesture is used the hand ladle and is drawn together the 2nd bluetooth module, SD memory, second single -chip microcomputer, LED LCD screen, ultrasonic ranging module and the 2nd power module, the 2nd bluetooth module the SD memory with ultrasonic ranging module respectively with second single -chip microcomputer connects, second single -chip microcomputer with the LED LCD screen is connected. The utility model provides an intelligent, humanized eyesight testing arrangement based on gesture recognition.
Description
Technical field
This utility model relates to eyesight testing field, particularly relates to a kind of sight test means based on gesture identification.
Background technology
Along with the evolution gradually of information age, the continuous renewal replacement of integrated circuit and the extensive use of microprocessor, vision testing system is also improving gradually, more be tending towards intelligent, hommization, the process of eyesight testing also automatization more, the scheme of the eyesight testing of present appearance mainly contains following several: the method for testing 1, adopting traditional type, is tested and is provided vision value, compare labor intensive by auxiliary the completing of tester; 2, based on the eyesight testing of microprocessor and computer platform, though this kind of vision testing system can complete eyesight testing process individually, but this type systematic adopts the control of remote controller realization to vision systems of configuration mostly, and the most more complicated of the design of remote controller; 3, based on the vision software of computer platform, this kind of method of testing needs manual operation, and randomness is larger, and the vision value of test often has deviation.
Summary of the invention
In order to overcome the deficiency that existing sight test means exists, this utility model provides the sight test means based on gesture identification of a kind of intellectuality, hommization.
This utility model solves the technical scheme that its technical problem adopts:
A kind of sight test means based on gesture identification, described sight test means comprises gesture data sampling and processing end and gesture application end, described gesture data sampling and processing end comprise gathering gesture data cmos image sensor, in order to identify and to process gesture data and exectorial first single-chip microcomputer, in order to send the first bluetooth module and first power module of the gesture encoded radio corresponding with gesture data, described cmos image sensor is connected with described first single-chip microcomputer, and described first single-chip microcomputer is connected with described first bluetooth module;
Described gesture application end comprises the second bluetooth module in order to receive the gesture encoded radio corresponding with gesture data, in order to store the SD memorizer of Word message and sighting target image data, in order to call data in SD memorizer and exectorial second singlechip, in order to show the LED liquid crystal display screen of Word message and sighting target picture, in order to measure ultrasonic distance measuring module and the second source module of the distance between tester and LED liquid crystal display screen, described second bluetooth module, described SD memorizer is connected with described second singlechip respectively with described ultrasonic distance measuring module, described second singlechip is connected with described LED liquid crystal display screen.
Described first bluetooth module, the first power module, the second bluetooth module, ultrasonic distance measuring module and second source module realize by hardware circuit.
Further, described sight test means also comprises the FPGA controller and the Drive of row and column device that control word or the line position of sighting target picture when LED liquid crystal screen display and row position, described single-chip microcomputer is connected with described FPGA controller, described FPGA controller is connected with described Drive of row and column device, and described Drive of row and column device is connected with described LED liquid crystal display screen.
Further again, described cmos image sensor is embedded with can periodic scan the tracing module of two-dimensional coordinate under obtaining gesture mobile status, and tracing module is realized being integrated on image sensor chip by hardware circuit.
Technical conceive of the present utility model is: when not needing tester's auxiliary detection vision, the test of tester's vision can realize by means of human-computer interaction technology, and the gesture of people is the mode a kind of easy to learn of man-machine interaction, can be used as the instrument that in eyesight testing, between tester with visual acuity chart, sense organ exchanges, the basic ideas realized are, image acquisition end obtains the instantaneous continuous print two-dimensional coordinate value of current dynamic gesture by photographic head scanning, standard gesture data in the coordinate figure of being sampled by single-chip microcomputer relative analysis and Sample Storehouse, thus the hands gesture of locking coupling, and different gestures is encoded, different encoded radios can call different instructions, the difference realizing application modules controls.
The beneficial effects of the utility model are:
1, by the gesture of simplicity of design, can realize controlling the calling of visual acuity chart, page turning after hardware unit identifying processing and selection to sighting target direction;
2, the sighting target picture number of different size size can be made sighting target storehouse is placed in SD memorizer, by calling of main control chip single-chip microcomputer, finally on LED liquid crystal display screen, reappears image data;
Being combined 3, by single-chip microcomputer and FPGA controller, by control lines row driver rapid scanning LED liquid crystal display screen, greatly reduces the distortion of picture or blunt display;
4, cmos image sensor is embedded with object tracking technology, has the function removing background image and tracing object, can reduce the requirement to main control chip performance, accurately can locate the position coordinates of mobile object simultaneously.
Accompanying drawing explanation
Fig. 1 is a kind of system framework figure of the sight test means based on gesture identification.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described further.
With reference to Fig. 1, a kind of sight test means based on gesture identification, described sight test means comprises gesture data sampling and processing end and gesture application end, described gesture data sampling and processing end comprise gathering gesture data cmos image sensor, in order to identify and to process gesture data and exectorial first single-chip microcomputer, in order to send the first bluetooth module and first power module of the gesture encoded radio corresponding with gesture data, described cmos image sensor is connected with described first single-chip microcomputer, and described first single-chip microcomputer is connected with described first bluetooth module;
Described gesture application end comprises the second bluetooth module in order to receive the gesture encoded radio corresponding with gesture data, in order to store the SD memorizer of Word message and sighting target image data, in order to call data in SD memorizer and exectorial second singlechip, in order to show the LED liquid crystal display screen of word and sighting target picture, in order to measure ultrasonic distance measuring module and the second source module of the distance between tester and LED liquid crystal display screen, described second bluetooth module, described SD memorizer is connected with described second singlechip respectively with described ultrasonic distance measuring module, described second singlechip is connected with described LED liquid crystal display screen.
Described first bluetooth module, the first power module, the second bluetooth module, ultrasonic distance measuring module and second source module realize by hardware circuit.
Further, described sight test means also comprises the FPGA controller and the Drive of row and column device that control word or the line position of sighting target picture when LED liquid crystal screen display and row position, described single-chip microcomputer is connected with described FPGA controller, described FPGA controller is connected with described Drive of row and column device, described Drive of row and column device is connected with described LED liquid crystal display screen, the lattice module that described LED liquid crystal display screen is made up of light emitting diode.
Further again, described cmos image sensor is embedded with can periodic scan the tracing module of two-dimensional coordinate under obtaining gesture mobile status; Described cmos image sensor selects the cmos image sensor chip of Taiwan Yuan Xiang scientific & technical corporation, and the inside of cmos image sensor chip is integrated with the tracing module realized by hardware circuit of the object tracking technology of Taiwan Yuan Xiang scientific & technical corporation.
In the present embodiment, described cmos image sensor, the first single-chip microcomputer, the first bluetooth module and the first power module form gesture data sampling and processing end, and identifiable design four kinds of gestures, are respectively: from the top down and the bottom up, from left to right, from right to left; Described first power module is powered to the device of gesture data sampling and processing end, and described second source module is powered to the device of gesture application end; Described SD memorizer stores lteral data and sighting target image data, the E letter sighting target that in sighting target storehouse, storage person's size is different; Described second singlechip can read lteral data in SD memorizer and sighting target image data, and transferring data to FPGA controller by the interface of second singlechip and FPGA, the data convert finally driving Drive of row and column device to show by FPGA controller is on LED liquid crystal display screen; The video data amount of described LED liquid crystal display screen is larger, directly slower by the Micro Controller Unit (MCU) driving speed of service, take FPGA controller as pilot controller, lteral data and sighting target image data show fast and stablize, to reduce the distortion of lteral data and sighting target image data or blunt display; FPGA is made up of array of programmable logic cells, interconnection resource and programmable I/O cell array, and a FPGA comprises abundant gate, depositor and I/O resource.
Operation principle of the present utility model is as follows:
The storage of display lteral data, sighting target image data and coded portion: second singlechip is connected with SD memorizer, connect computer by serial ports and the sighting target picture dot array data after display lteral data and designed format transformation can be made sighting target picture transfer in SD memorizer, complete the storage of display lteral data and sighting target image data, and by second singlechip, the E letter sighting target in display lteral data and sighting target picture is numbered, and the direction value of all sighting targets is encoded.
The sampling of gesture and storage area: the gesture being gathered standard by COMS imageing sensor, and using the data register of four kinds of gestures " from left to right ", " from right to left ", " from top to bottom ", " from top to bottom " in SD memorizer as gesture Sample Storehouse, and be numbered, use when contrasting after doing.
Gesture recognition process process: when COMS imageing sensor is in opening, start the picture signal periodically gathering mobile object gesture, after carrying out pretreatment, object continually varying two-dimensional coordinate is sent to the first single-chip microcomputer, the data that the run-down phase gathers can simulate the running orbit of staff, the matching analysis is done again by the moving coordinate data of the first single-chip microcomputer to the standard gesture in the gesture data gathered and Sample Storehouse, thus identify the type of gesture and determine the numbering of gesture, then numbering corresponding for current gesture is sent to the second bluetooth module of gesture application end by the first bluetooth module, second singlechip completes according to the numbering of different gesture and controls the difference of application layer.
Eyesight testing process of the present utility model: when starting to test vision, whole sight test means is in power down mode, LED liquid crystal display screen is in closed condition, when COMS image sensor scan is to the gesture of " from right to left ", second singlechip Triggered ultrasound ripple range finder module starts to find range and closes COMS imageing sensor, the sighting distance data of measurement are presented on LED liquid crystal display screen so that tester adjusts before and after doing, when measure sighting distance size and normal line of sight difference within the limits prescribed time, second singlechip can call the lteral data " beginning eyesight testing " of reference numeral in SD memorizer in LED liquid crystal screen display, and call subsequently in sighting target picture any one E letter sighting target be presented on LED liquid crystal display screen, and unlatching COMS imageing sensor starts to scan hands gesture simultaneously, tester provides " from top to bottom ", " from top to bottom ", " from left to right ", " from right to left " one in gesture, second singlechip can do contrast judgement to the encoded radio in the gesture encoded radio received and current sighting target direction, and by LED liquid crystal display screen display lteral data " correctly " or " mistake ", when tester provides the gesture of " from left to right ", in second singlechip meeting random call SD memorizer, in sighting target picture, another E letter sighting target is presented on LED liquid crystal display screen, realize page-turning function, and preserve the result of eyesight testing last time, after the test of stipulated number, the test result analysis of all preservations is drawn to the vision value of tester, and be presented on LED liquid crystal display screen.
Claims (3)
1. the sight test means based on gesture identification, it is characterized in that: described sight test means comprises gesture data sampling and processing end and gesture application end, described gesture data sampling and processing end comprises the cmos image sensor gathering gesture data, in order to identify and to process gesture data and exectorial first single-chip microcomputer, in order to send the first bluetooth module and first power module of the gesture encoded radio corresponding with gesture data, described cmos image sensor is connected with described first single-chip microcomputer, described first single-chip microcomputer is connected with described first bluetooth module,
Described gesture application end comprises the second bluetooth module in order to receive the gesture encoded radio corresponding with gesture data, in order to store the SD memorizer of Word message and sighting target image data, in order to call data in SD memorizer and exectorial second singlechip, in order to show the LED liquid crystal display screen of word and sighting target picture, in order to measure ultrasonic distance measuring module and the second source module of the distance between tester and LED liquid crystal display screen, described second bluetooth module, described SD memorizer is connected with described second singlechip respectively with described ultrasonic distance measuring module, described second singlechip is connected with described LED liquid crystal display screen.
2. a kind of sight test means based on gesture identification as claimed in claim 1, it is characterized in that: described sight test means also comprises controlling FPGA controller and the Drive of row and column device of word or the line position of sighting target picture when LED liquid crystal screen display and row position, described single-chip microcomputer is connected with described FPGA controller, described FPGA controller is connected with described Drive of row and column device, and described Drive of row and column device is connected with described LED liquid crystal display screen.
3. a kind of sight test means based on gesture identification as claimed in claim 1 or 2, is characterized in that: described cmos image sensor is embedded with can periodic scan the tracing module of two-dimensional coordinate under obtaining gesture mobile status.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520329252.9U CN204765560U (en) | 2015-05-20 | 2015-05-20 | Eyesight testing arrangement based on gesture recognition |
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| CN201520329252.9U CN204765560U (en) | 2015-05-20 | 2015-05-20 | Eyesight testing arrangement based on gesture recognition |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105812578A (en) * | 2016-05-10 | 2016-07-27 | 宁波高科美电子技术有限公司 | Active myopia preventing method of mobile display device |
| CN106073694A (en) * | 2016-07-21 | 2016-11-09 | 浙江理工大学 | A kind of interactive sighting target display system based on Kinect and sighting target display optimization method |
| CN109003665A (en) * | 2018-08-02 | 2018-12-14 | 广东小天才科技有限公司 | Eyesight detection method, device, equipment and storage medium based on terminal equipment |
-
2015
- 2015-05-20 CN CN201520329252.9U patent/CN204765560U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105812578A (en) * | 2016-05-10 | 2016-07-27 | 宁波高科美电子技术有限公司 | Active myopia preventing method of mobile display device |
| CN106073694A (en) * | 2016-07-21 | 2016-11-09 | 浙江理工大学 | A kind of interactive sighting target display system based on Kinect and sighting target display optimization method |
| CN109003665A (en) * | 2018-08-02 | 2018-12-14 | 广东小天才科技有限公司 | Eyesight detection method, device, equipment and storage medium based on terminal equipment |
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Granted publication date: 20151118 Termination date: 20160520 |