CN102631186A - Electronic vision testing device and method thereof - Google Patents
Electronic vision testing device and method thereof Download PDFInfo
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- CN102631186A CN102631186A CN2012101179221A CN201210117922A CN102631186A CN 102631186 A CN102631186 A CN 102631186A CN 2012101179221 A CN2012101179221 A CN 2012101179221A CN 201210117922 A CN201210117922 A CN 201210117922A CN 102631186 A CN102631186 A CN 102631186A
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Abstract
The invention discloses an electronic vision testing device and a method thereof. A visual target in an international standard visual acuity chart is processed into a plurality of visual target patterns in same size to generate lattice data and then operate the lattice data in a chip program, the visual targets in same size are displayed on a liquid crystal display, a person to be tested judges the direction of the visual targets by upper, lower, left and right keys on a remote controller, and the result is judged by the control chip and then automatically displayed and stored in a memory. The electronic vision testing device can be widely applied in various fields for vision test, and can early find and early treatment the vision disease. The electronic vision testing device has characteristics of low cost, convenience for carrying and use.
Description
Technical field
The present invention relates to the vision checkout equipment, particularly a kind of electronics vision checkout gear and method thereof.
Background technology
Visual acuity chart is the chart that is used to measure vision.The visual acuity chart of domestic use has: international standard visual acuity chart, visual acuity chart logarithmic visual acuity chart, Lan Shi (Landolt) encircle visual acuity chart.From the function branch near vision test type, distant vision test chart are arranged.Visual acuity chart is to formulate according to the principle at visual angle.Testing eyesight generally is divided into two types of distant vision and near visions, the distant vision visual acuity chart of adopting international standards more, and this table is formed by 12 row different " E " words of opening direction that vary in size; Measurement is from 0.1-1.5 (or from 4.0-5.2); Every row has label, the examinee to look visual acuity chart operational approach line parallel with 1.0 delegation, apart from 5 meters of visual acuity charts, visual acuity chart and those who are investigated's distance must be correct fixing, the patient is 5 meters apart from table.
What present used visual acuity chart was mainly checked is central vision, promptly checks the recessed visual acuity of macula retinae district center, thereby can simply promptly recognize the preliminary situation of visual function, and the clinical diagnosis of oculopathy is treated all has important meaning.
Visual acuity chart is according to the principle design at visual angle.So-called visual angle is exactly by extraneous 2 light that send, through the formed angle of ophthalmic node (be exactly two fixed fires of external object when intersecting in pleasing to the eye draw into alliance's angle).Under the normal condition, the formed visual angle of minimum range that human eye can be told point-to-point transmission is the minimum visual angle, promptly one minute visual angle.Visual acuity chart is that unit designs effectively and gives a test of one's eyesight with one fen visual angle.
Testing eyesight generally is divided into two types of distant vision and near visions, the distant vision visual acuity chart of adopting international standards more, and this table is formed by 12 row different " E " words of opening direction that vary in size; Measurement is from 0.1-1.5 (or from 4.0-5.2); Every row has label, and examinee's sight line is parallel with 1.0 delegation, and apart from 5 meters of visual acuity charts, visual acuity chart and those who are investigated's distance must be correct fixing, and the patient is 5 meters apart from table.Like the not enough 5 meters long time of indoor distances, then should place plane mirror and reflect visual acuity chart at 2.5 meters.Detect and hide earlier a glance, simple eye " E " word of identification from top to bottom breach direction till can not recognizing, is noted and is got final product.Twenty-twenty vision should be more than 1.0.If when testee 0.1 also can't see, move forward, up to seeing till 0.1, its vision then is " a 0.1 * distance/5=vision "; If in half meter, still can't see 0.1, can make the testee recognize index, survey manually, light sensation etc.By inspection situation record vision.Near vision is used " J " near vision test type more, with quadrat method identification " E " word breach direction, till can not recognizing, closely can adjust voluntarily, and normal near vision is seen 1.0 delegation clearly in 30 centimeters and got final product, and examination of near vision helps ametropic diagnosis.
But existing hyperopia and myopia test needs artificial test, and volume is big, carries inconvenience, and price is more expensive, is unfavorable for popularizing, and this visual acuity chart can be widely applied to the every field of eyesight testing, accomplishes early to find early treatment.
In view of this, those skilled in the art provide a kind of electronics vision checkout gear and method thereof to the problems referred to above.
Summary of the invention
The invention provides a kind of electronics vision checkout gear and method thereof; Overcome the difficulty of prior art; Sighting target in the international standard visual acuity chart is shown in the first-class size of liquid crystal display screen by the eyesight testing requirement at random; The tester judges the sighting target direction through the key up and down on the remote controller, and control chip judges test result automatically and be presented on the liquid crystal display screen, shows the result automatically and stores in the memorizer.
The present invention adopts following technical scheme:
The invention provides a kind of electronics vision checkout gear, comprise checkout gear body and Digiplex; Said checkout gear body comprises control chip, memorizer, remote-control receiving circuit and liquid crystal display screen, and said control chip connects said memorizer, remote-control receiving circuit and liquid crystal display screen respectively; Said control chip generates the dot array data of the sighting target of imitation visual acuity chart; And single one by one output sighting target at random is on liquid crystal display screen; Said remote-control receiving circuit receives the wireless signal that comprises the sighting target directional information of said Digiplex; Said control chip judges that whether correct said sighting target direction compare with the sighting target of demonstration, and saving result is to memorizer.
Preferably, said checkout gear body comprises that also a sighting target when said sighting target direction and demonstration sends the voice module of chimes of doom when not matching, and said voice module connects said control chip.
Preferably, said control chip is exported the corresponding vision value of sighting target simultaneously to liquid crystal display screen.
Preferably, said remote-control receiving circuit detects the actual range between said Digiplex and the said checkout gear body, and amplifies or dwindle the size of sighting target according to the distance of distance.
Preferably, said Digiplex is a mobile phone, and said checkout gear body is another mobile phone.
The present invention also provides a kind of electronics vision to detect the dress method, adopts above-mentioned electronics vision checkout gear, may further comprise the steps:
(1) preset rising threshold values, decline threshold values and sighting target string length select to detect left vision or right vision;
(2) 0.1 (4.0) row from visual acuity chart begins test;
(3) sighting target according to current line generates a string sighting target at random, and exports one by one on liquid crystal display screen, judges that respectively whether correct the wireless signal comprise the sighting target direction compare with the sighting target of demonstration, and saving result shows until the sighting target string to memorizer fully;
(4) whether the misjudge number of times smaller or equal to the decline threshold values, if, then get into the next line sighting target, execution in step (3), if not, execution in step (5) then;
(5) the misjudge number of times whether greater than on threshold values falls, if, then get into the lastrow sighting target, execution in step (3), if not, execution in step (6) then;
(6) record testing result, the examination of visual acuity of these eyes finishes.
Preferably, do not select to give tacit consent to the left vision test in 3 seconds in the said step (1), said rising threshold values is greater than the decline threshold values.
Preferably, the said sighting target string length in the said step (1) is 8, and the rising threshold values is 4, and the decline threshold values is 2.
Preferably, in the said step (3) in 6 seconds no remote control then be regarded as mistake, if mistake then has the warning of bell sound, select mistake to change once through remote controller.
Preferably, said step (6) also comprises afterwards returns step (2), checks another vision.
Owing to adopted above-mentioned technology, compared with prior art, electronics vision checkout gear of the present invention and method thereof are with the sighting target in the international standard visual acuity chart; Be processed into sighting target picture of a size, generate dot array data, in the control chip program, move then; With etc. the sighting target of size on liquid crystal display screen, show; The measured is through the direction of judging sighting target up and down on the remote controller, by the control chip judged result, and the result shown automatically and stores in the memorizer.This visual acuity chart can be widely applied to the every field of eyesight testing, accomplishes early to find, and early treatment, and also with low cost, easy to carry, easy to use.
Further specify the present invention below in conjunction with accompanying drawing and embodiment.
Description of drawings
Fig. 1 is that the module of the electronics vision checkout gear among the embodiment connects sketch map;
Fig. 2 is the flow chart of the electronics vision testing method among the embodiment.
The specific embodiment
Introduce a kind of specific embodiment of the present invention through Fig. 1 to 2 below.
Embodiment 1
As shown in Figure 1, a kind of electronics vision checkout gear of the present invention comprises checkout gear body and Digiplex; Said checkout gear body comprises control chip, memorizer, remote-control receiving circuit and liquid crystal display screen, and said control chip connects said memorizer, remote-control receiving circuit and liquid crystal display screen respectively; Said control chip generates the dot array data of the sighting target of imitation visual acuity chart; And single one by one output sighting target at random is on liquid crystal display screen; Said remote-control receiving circuit receives the wireless signal that comprises the sighting target directional information of said Digiplex; Said control chip judges that whether correct said sighting target direction compare with the sighting target of demonstration, and saving result is to memorizer.
Said checkout gear body comprises that also a sighting target when said sighting target direction and demonstration sends the voice module of chimes of doom when not matching, and said voice module connects said control chip.Said control chip is exported the corresponding vision value of sighting target simultaneously to liquid crystal display screen.Very hommization of electronics vision checkout gear of the present invention, test result is intuitively convenient.
Said remote-control receiving circuit detects the actual range between said Digiplex and the said checkout gear body, and amplifies or dwindle the size of sighting target according to the distance of distance.When spacious inadequately in indoor distance; Conventionally test distance less than 5 meters; Existing visual acuity chart can't use, and perhaps must use through glass is reflective, and the present invention does not have the misgivings of this respect fully; Can regulate the size of sighting target according to certain ratio automatically, play the effect of equivalence margin test environment.
Said Digiplex is a mobile phone, and said checkout gear body is another mobile phone.It is ultra convenient that electronics vision checkout gear of the present invention carries, and also need not cooperate the regulation power supply to use, and strengthened convenience greatly.
As shown in Figure 2, a kind of electronics vision of the present invention detects the dress method, adopts above-mentioned electronics vision checkout gear, may further comprise the steps:
(1) preset rising threshold values, decline threshold values and sighting target string length select to detect left vision or right vision;
(2) 0.1 (4.0) row from visual acuity chart begins test;
(3) sighting target according to current line generates a string sighting target at random, and exports one by one on liquid crystal display screen, judges that respectively whether correct the wireless signal comprise the sighting target direction compare with the sighting target of demonstration, and saving result shows until the sighting target string to memorizer fully;
(4) whether the misjudge number of times smaller or equal to the decline threshold values, if, then get into the next line sighting target, execution in step (3), if not, execution in step (5) then;
(5) the misjudge number of times whether greater than on threshold values falls, if, then get into the lastrow sighting target, execution in step (3), if not, execution in step (6) then;
(6) record testing result, the examination of visual acuity of these eyes finishes.
Do not select to give tacit consent to the left vision test in the said step (1) in 3 seconds, said rising threshold values is greater than the decline threshold values, and said sighting target string length is 8, and the rising threshold values is 4, and the decline threshold values is 2.
In the said step (3) in 6 seconds no remote control then be regarded as mistake, if mistake then has the warning of bell sound, select mistake to change once through remote controller.
Said step (6) also comprises afterwards returns step (2), checks another vision.
The specific embodiment of the present invention is following:
The purpose of patent of the present invention is with the sighting target in the international standard visual acuity chart; Be processed into sighting target picture of a size with the picture process software, generate dot array data, in the control chip program, move then with getting film software; With etc. the sighting target of size on liquid crystal display screen, show; The measured is through the direction of judging sighting target up and down on the remote controller, by the control chip judged result, and the result shown automatically stores in the memorizer.This visual acuity chart can be widely applied to the every field of eyesight testing, accomplishes early to find early treatment.
Reference is like Fig. 1, and electronics vision checkout gear of the present invention mainly comprises control chip, key circuit, remote-control receiving circuit, remote controller, memorizer, sound circuit, power supply, liquid crystal display screen.
Said key circuit, remote-control receiving circuit, memorizer, sound circuit, liquid crystal display screen are connected with control chip respectively, and power supply is given circuit board and the liquid crystal display screen power supply in the JIKE.
Remote controller comprises shell, circuit board, power pack, button, the title on the button have " 0,2,3,4,5,6,7,8,9,0, upper and lower, left and right, confirm, inquire about, delete, start shooting, shut down, withdraw from, accurate etc.After button is pressed; Remote controller coding emission wireless signal; Remote-control receiving circuit is received behind the wireless signal decoding and is passed to control chip to the information order, and control chip produces various instructions after receiving information, goes to show and storage relevant information or judge that the sighting target direction is to mistake etc.
Work process of the present invention is following:
At first remote-controlled start-up is lighted liquid crystal display " standard visual acuity chart ", and " please import numbering " directly imported or numbered with key input about the remote controller with remote controller; After the remote controller affirmation, show left eye test and right eye test, perhaps selected with the selection of remote controller right and left key with test of the left eye on the remote controller and right eye test, do not select to give tacit consent to left vision and test in three seconds; Sighting target in 5 meters standard visual acuity charts (centre is single sighting target, and the upper left corner is the vision value, for example 0.1 (4.0), by eyesight testing requirement showing at random separately in sizes such as liquid crystal display screens; The tester can pass through the remote controller input direction, and control chip is judged the input direction correctness automatically; Each sighting target showed for 6 seconds, and no remote control then is regarded as mistake in 6 seconds, and mistake then has the warning of bell sound; Select mistake through the remote controller change once, then to count mistake if also not right; Automatically show the right vision test after the left eye test completion, control chip provides test result automatically, and the result is stored automatically and is presented on the liquid crystal display screen.
Since 0.1 (4.0), every kind of sighting target shows twice at random up and down, and each row shows altogether eight times; Produce the operation row of next line at random according to error result, (then ignore with interior for two, get into next line; Surpass four mistakes and then get into the lastrow test, logging test results is to each row; Accurate key on the available remote controller is accurately tested this row.
The result queries order, through pressing the query key on the remote controller, input coding after confirming, shows numbering on the liquid crystal, the date time-division, testing time, left vision or right vision are tested this row sighting target sum, this row mistake sum, correct percentage rate.
The all right delete command of the present invention, the deletion relevant information.
Can know that to sum up owing to adopted above-mentioned technology, electronics vision checkout gear of the present invention and method thereof are with the sighting target in the international standard visual acuity chart; Be processed into sighting target picture of a size with the picture process software, generate dot array data, in the control chip program, move then with getting film software; With etc. the sighting target of size on liquid crystal display screen, show; The measured is through the direction of judging sighting target up and down on the remote controller, by the control chip judged result, and the result shown automatically and stores in the memorizer.This visual acuity chart can be widely applied to the every field of eyesight testing, accomplishes early to find, and early treatment, and also with low cost, easy to carry, easy to use.
Above-described embodiment only is used to explain technological thought of the present invention and characteristics; Its purpose is to make those skilled in the art can understand content of the present invention and implements according to this; Can not only limit claim of the present invention with present embodiment; Be all equal variation or modifications of doing according to disclosed spirit, still drop in the claim of the present invention.
Claims (10)
1. an electronics vision checkout gear is characterized in that: comprise checkout gear body and Digiplex;
Said checkout gear body comprises control chip, memorizer, remote-control receiving circuit and liquid crystal display screen, and said control chip connects said memorizer, remote-control receiving circuit and liquid crystal display screen respectively;
Said control chip generates the dot array data of the sighting target of imitation visual acuity chart; And single one by one output sighting target at random is on liquid crystal display screen; Said remote-control receiving circuit receives the wireless signal that comprises the sighting target directional information of said Digiplex; Said control chip judges that whether correct said sighting target direction compare with the sighting target of demonstration, and saving result is to memorizer.
2. electronics vision checkout gear as claimed in claim 1 is characterized in that: said checkout gear body comprises that also a sighting target when said sighting target direction and demonstration sends the voice module of chimes of doom when not matching, and said voice module connects said control chip.
3. electronics vision checkout gear as claimed in claim 2 is characterized in that: said control chip is exported the corresponding vision value of sighting target simultaneously to liquid crystal display screen.
4. electronics vision checkout gear as claimed in claim 3 is characterized in that: said remote-control receiving circuit detects the actual range between said Digiplex and the said checkout gear body, and amplifies or dwindle the size of sighting target according to the distance of distance.
5. electronics vision checkout gear as claimed in claim 4, it is characterized in that: said Digiplex is a mobile phone, said checkout gear body is another mobile phone.
6. an electronics vision detects the dress method, adopts any electronics vision checkout gear described in claim 1 to 5, it is characterized in that: may further comprise the steps:
(1) preset rising threshold values, decline threshold values and sighting target string length select to detect left vision or right vision;
(2) 0.1 (4.0) row from visual acuity chart begins test;
(3) sighting target according to current line generates a string sighting target at random, and exports one by one on liquid crystal display screen, judges that respectively whether correct the wireless signal comprise the sighting target direction compare with the sighting target of demonstration, and saving result shows until the sighting target string to memorizer fully;
(4) whether the misjudge number of times smaller or equal to the decline threshold values, if, then get into the next line sighting target, execution in step (3), if not, execution in step (5) then;
(5) the misjudge number of times whether greater than on threshold values falls, if, then get into the lastrow sighting target, execution in step (3), if not, execution in step (6) then;
(6) record testing result, the examination of visual acuity of these eyes finishes.
7. electronics vision testing method as claimed in claim 6 is characterized in that: do not select to give tacit consent to the left vision test in 3 seconds in the said step (1), said rising threshold values is greater than the decline threshold values.
8. electronics vision testing method as claimed in claim 6 is characterized in that: the said sighting target string length in the said step (1) is 8, and the rising threshold values is 4, and the decline threshold values is 2.
9. electronics vision testing method as claimed in claim 6 is characterized in that: in the said step (3) in 6 seconds no remote control then be regarded as mistake, if mistake then has the warning of bell sound, select mistake to change once through remote controller.
10. electronics vision testing method as claimed in claim 6 is characterized in that: said step (6) also comprises afterwards returns step (2), checks another vision.
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Application publication date: 20120815 |