CN1394544A - Interdynamic visual acuity test chart - Google Patents
Interdynamic visual acuity test chart Download PDFInfo
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- CN1394544A CN1394544A CN 02138100 CN02138100A CN1394544A CN 1394544 A CN1394544 A CN 1394544A CN 02138100 CN02138100 CN 02138100 CN 02138100 A CN02138100 A CN 02138100A CN 1394544 A CN1394544 A CN 1394544A
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Abstract
The interactive visual acuity test chart is mainly characterized by that it utilzies computer to design the program meeting visual acuity test standard and its controller to make static visual target E changed into the visual target E whose orientation can be randomly appeared on the computer display screen, so that it can eliminate the possibility of non-objective visual acuily reflection due to learning the visual acuity test chart by heat of testee, and can implement interaction of person and visual acuity test chart, and a person can use computer to test self visual acuity state at any time, therefore it has extensive application.
Description
Technical field
The present invention relates to a kind of device of medicine and hygiene fields eyesight testing, is a kind of visual acuity chart that can realize human-computer interaction.
Background technology
Examination of visual acuity test is not only treatment oculopathy or is worn the needs of glasses, is again simultaneously an important physical examination when entering a higher school, joining the army or working.The sighting target of existing visual acuity chart is static, some weak-eyed people, the vision of being afraid of oneself does not reach corresponding requirements and can not pass, usually adopt the method for hard note, with all or part of up and down the remembeing of relevant each row sighting target E in the existing visual acuity chart, checkout also can be deceived people up to standard reaching a standard, and such test result is obviously neither objective, injustice again, also will inevitably bring a lot of adverse consequencess.
Technical scheme
The objective of the invention is sighting target at existing visual acuity chart for static present situation, utilize computer, make appear at sighting target E on the display screen towards occurring at random, get rid of the possibility that the measured remembers visual acuity chart, make test result reach objective and fair.And it is mobile on screen with certain speed to allow sighting target E the back occur as required, satisfies the test request such as special industries such as shooter, aircraft pilotss.
The present invention is achieved through the following technical solutions: a kind of interdynamic visual acuity test chart, by the computor-keyboard circuit, have the controller of function key such as directionkeys and measuring distance selection up and down and constituting with the sighting target E of visual acuity chart towards making the testing software that moves on screen with certain speed again after occurring at random up and down or occurring at random, when controller is cable controller, the all directions key that is provided with is connected through the input of connecting line with the computor-keyboard circuit with function key, the outfan of computor-keyboard circuit is external through connecting line, connecting line is marked with length scale sign, is convenient to determine measuring distance; Controller also can be made of remote controller and receptor, all directions key in the controller and each function key are arranged on the remote controller, remote controller also is provided with coding circuit that integrated circuit VD5026 and peripheral circuit thereof constitute and working power, radiating circuit, and the coded signal of coding circuit output is exported through radiating circuit; The corresponding receiving circuit of radiating circuit in setting and the remote controller in the receptor, the decoding circuit that the remote signal input ic VD5027 that receiving circuit receives constitutes, each outfan of decoding circuit connects integrated circuit CD4081, the pulse output signals of its generation is through the independent output of four road unlatchings, connect each control end of the digital switch circuit of integrated circuit CD4066 formation, the output on its each road connects the computor-keyboard circuit; Function key comprises initiating key, end key, measuring distance options button, test pattern options button and test initial value options button.
Testing software by:
(1) main flow: the initiating key of start-up control device, press corresponding measuring distance options button then, with interior a certain distance, the distance of input is determined the size of sighting target E apart from 5M or 5M in the input standard testing.Then select the static schema or the dynamic mode of test, enter test module, after test finishes, press the end key EOT.
(2) test module in the main flow: 4.0 (the vision values in the standard logarithmic visual acuity chart are selected in test beginning back, the vision value 0.1 that is equivalent to the decimal visual acuity chart) or 4.0 (0.1) back a certain test values for the test initial value, determine then to enter test behind the initial value, reach the test that this test value then enters next test value, otherwise exporting a last test value is the vision value, and inquire whether also will carry out other people's test, need then turn back to and select test initial value place, otherwise EOT.
(3) judge whether to reach certain test value module in the test module: after module begins, the initial value of setting two variable R IGHT, WRONG is O, variable R IGHT writes down judicious number of times, variable WRONG writes down wrongheaded number of times, in the test process, reach a standard greater than 1/2 of this test value sighting target sum as if RIGHT, enter the test of next test value, do not pass a test more than or equal to 1/2 of this test value sighting target sum as if WRONG.
(4) judge whether to reach single E judge module in certain test value module: after module begins, earlier with the variable X between 1-4 of random function generation, X is 1 and shows E upwards, X is 2 E that demonstration is downward, and X is 3 demonstration E left, and X is 4 demonstration E to the right, the tester presses the value that directionkeys is judged X, equal the value of X as the value of judging, this correct judgment (RIGHT+1) then, otherwise this misjudge (WRONG+1); If dynamic mode, then show sighting target E after, sighting target E moves by certain specific speed.
The present invention is by utilizing computer; design meets the testing software of eyesight testing standard and the controller of test vision; the sighting target E of static state in the existing visual acuity chart is become in the computer display screen towards the sighting target E that occurs at random; got rid of that the eyesight testing person remembers visual acuity chart and the possibility that do not objectively respond vision; and realized the interaction of people and visual acuity chart; a people just can use computer to measure the present situation of own vision at any time; the vision that helps numerous students and related work personal protection oneself; the present invention can be widely used in hospital; school; constituent parts and family also are applicable to special industry test dynamic visual acuity.
Description of drawings
Accompanying drawing 1 is structured flowchart of the present invention;
Accompanying drawing 2 is transmitter circuit figure among the present invention;
Accompanying drawing 3 is acceptor circuit figure among the present invention;
Accompanying drawing 4 is the main flow block diagram of testing software among the present invention;
Accompanying drawing 5 is the test module block diagram of testing software among the present invention;
Accompanying drawing 6 judges whether to reach the test value module frame chart for testing software among the present invention;
Accompanying drawing 7 is single E judge module (static state) block diagram of testing software among the present invention;
Accompanying drawing 8 is single E judge module (dynamically) block diagram of testing software among the present invention.
Specific embodiment
The present invention is made of controller and testing software, the outfan of computor-keyboard circuit is through the keyboard interface of the external computer of line in the controller, the controller of present embodiment is made up of remote controller and receptor, remote controller is a control handle, in the channel wireless radio multi radiating circuit is arranged, receptor is made of receiving circuit, decoding circuit, digital switch circuit and computor-keyboard circuit, and testing software is programmed by Authorware, with reach make sighting target E in the existing visual acuity chart towards occurring at random;
The core of remote control transmitter coding circuit is VD5026, and (10) (11) (12) (13) foot of VD5026 encoder is 4 bit data sign indicating number inputs, is controlled by control knob S1-S4 respectively.(15) external oscillation resistance R5 between (16) foot, its resistance size has determined the operating frequency of encoder.Coded signal is by (17) foot output, removes modulated infrared, ultrasound wave or radio circuit.
Receptor is made up of receiving circuit, decoding circuit, digital switch circuit and computor-keyboard circuit, and+5V power supply can be taken from the keyboard interface of computer.Decoding circuit is made of decoder VD5027, the remote signal that infrared ray, ultrasound wave or radio reception head receive is imported by VD5027 (14) foot, the data that decode are by (10) (11) (12) (13) foot output, one of (17) foot output simultaneously and the synchronous pulse signal of transmission signal.R6 is external oscillation resistance, and its resistance size should be consistent with coding circuit.The effect of IC3 is to produce pulse output signals.D1-D4 is the independent output of four road unlatchings, as the S1 of coding circuit (or S2-S4) when being pressed, the output state flip of corresponding decoding outfan D1 (or D2-D4) once, the E1[of control figure on-off circuit CD4066 or E2-E4 foot], make the internal digital switch conduction of IC4, reach the numeral keys (1-4) of control computor-keyboard circuit, and pass through the PS/2 interface of computer, realize the operation of control computer visual acuity chart testing software.
Button of the present invention adopts puts key again.During use, two buttons pressing remote-control handle central authorities simultaneously promptly begin, the present embodiment directionkeys " on; down " as choice criteria measuring distance 5M or 2.5M, the reuse directionkeys " on; down; a left side; the right side " key is as selecting test vision initial value 4.0 (0.1), 4.3 (0.2), 4.8 (0.6) or 5.0 (1.0), then be available directionkeys confirm E towards, test finishes and presses central two keys simultaneously and can withdraw from, as continuing test, can be by any key of directionkeys, after test program begins, the tester is by remote controller or keyboard input test distance, test beginning back tester selects above-mentioned a certain test value to be the test initial value by my general vision, when selecting then to enter test behind a certain initial value, if the test that has reached test value then entered next test value, otherwise export the vision value of a last test value, and whether inquiry also to carry out other people's test for you.Then turn back to the place of selecting the test initial value if desired, otherwise, test finished.
After judging whether to reach test value module frame chart representation module and beginning, the initial value of setting two variable R IGHT, WRONG earlier is 0, and variable R IGHT writes down judicious number of times, and variable WRONG writes down wrongheaded number of times.In the test process, reach a standard greater than 1/2 of this test value sighting target sum, enter the test of next test value, do not pass a test more than or equal to 1/2 of this test value sighting target sum as if WRONG as if RIGHT.
After the direction judge module block representation test beginning of single E, with the variable X between 1-4 of random function generation, X is 1 and shows E upwards earlier; X is 2 and shows downward E; X is 3 demonstration E left; If X is 4 then demonstration E to the right, wait for that then the tester passes through remote controller input direction (the upper and lower, left and right key of remote controller is 1,2,3,4 keys on the corresponding keyboard respectively), if the value of input equals X, then think this correct judgment (RIGHT+1); Otherwise misjudge (WRONG+1).
Claims (8)
1, a kind of interdynamic visual acuity test chart, it is characterized in that by the computor-keyboard circuit, have the controller of function key such as directionkeys and measuring distance selection up and down and the constituting of the sighting target E of visual acuity chart towards making the testing software that moves again after occurring at random up and down or occurring at random, testing software by:
(1) main flow: the initiating key of start-up control device, press corresponding measuring distance options button then, with interior a certain distance, the distance of input is determined the size of sighting target E apart from 5M or 5M in the input standard testing.Then select the static schema or the dynamic mode of test, enter test module, after test finishes, press the end key EOT;
(2) test module in the main flow: 4.0 (the vision values in the standard logarithmic visual acuity chart are selected in test beginning back, the vision value 0.1 that is equivalent to the decimal visual acuity chart) or 4.0 (0.1) back a certain test values for the test initial value, determine then to enter test behind the initial value, reach the test that this test value then enters next test value, otherwise exporting a last test value is the vision value, and inquire whether also will carry out other people's test, need then turn back to and select test initial value place, otherwise EOT;
(3) judge whether to reach certain test value module in the test module: after module begins, the initial value of setting two variable R IGHT, WRONG is O, variable R IGHT writes down judicious number of times, variable WRONG writes down wrongheaded number of times, in the test process, reach a standard greater than 1/2 of this test value sighting target sum as if RIGHT, enter the test of next test value, do not pass a test more than or equal to 1/2 of this test value sighting target sum as if WRONG;
(4) judge whether to reach single E judge module in certain test value module: after module begins, earlier with the variable X between 1-4 of random function generation, X is 1 and shows E upwards, X is 2 E that demonstration is downward, and X is 3 demonstration E left, and X is 4 demonstration E to the right, the tester presses the value that directionkeys is judged X, equal the value of X as the value of judging, this correct judgment (RIGHT+1) then, otherwise this misjudge (WRONG+1); If dynamic mode, then show sighting target E after, sighting target E moves by certain specific speed.
2, interdynamic visual acuity test chart according to claim 1, when it is characterized in that controller is cable controller, the all directions key that is provided with is connected through the input of connecting line with the computor-keyboard circuit with function key, the outfan of computor-keyboard circuit is external through connecting line, and connecting line is marked with length scale sign.
3, interdynamic visual acuity test chart according to claim 1, it is characterized in that controller also can be made of remote controller and receptor, all directions key and function key in the controller are arranged on the remote controller, coding circuit and radiating circuit are arranged in the remote controller, and receptor is made up of receiving circuit, decoding circuit, on-off circuit and computor-keyboard circuit.
4,, it is characterized in that radiating circuit in the remote controller and the receiving circuit in the receptor are for corresponding ultrared or for hyperacoustic or be wireless emission/receiving circuit according to claim 1 or 3 described interdynamic visual acuity test charts.
5, according to claim 1 or 3 described interdynamic visual acuity test charts, when it is characterized in that controller is made of remote controller and receptor, coding circuit in its remote controller is made up of integrated circuit VD5026 and peripheral circuit thereof, the radiating circuit output of receiving circuit in the corresponding receptor of coded signal through being provided with of coding circuit output.
6, according to claim 1 or 3 described interdynamic visual acuity test charts, when it is characterized in that controller is made of remote controller and receptor, the receiving circuit of the corresponding remote controller radiating circuit that is provided with in its receptor is made of the remote signal input that receives integrated circuit VD5027 decoding circuit, each outfan of decoding circuit connects integrated circuit CD4081, the independent output of pulse output signals four road unlatchings of its generation, connect each input of the digital switch circuit of integrated circuit CD4066 formation, the output on its each road connects the computor-keyboard circuit.
7, interdynamic visual acuity test chart according to claim 1 is characterized in that function key comprises initiating key, end key, measuring distance options button, test pattern options button and test initial value options button in the controller.
8, according to the described interdynamic visual acuity test chart of claim 1 (4), when programming, can allow E the back occur and on screen, move, thereby a kind of new eyesight testing mode is provided with certain speed, measure people's dynamic visual acuity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02138100 CN1394544A (en) | 2002-08-12 | 2002-08-12 | Interdynamic visual acuity test chart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02138100 CN1394544A (en) | 2002-08-12 | 2002-08-12 | Interdynamic visual acuity test chart |
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| CN1394544A true CN1394544A (en) | 2003-02-05 |
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| CN 02138100 Pending CN1394544A (en) | 2002-08-12 | 2002-08-12 | Interdynamic visual acuity test chart |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298285C (en) * | 2004-03-22 | 2007-02-07 | 长安大学 | Kineto plast sight detector for automobile driver |
| CN101453588B (en) * | 2007-11-30 | 2011-11-16 | 深圳Tcl新技术有限公司 | Television set having eyesight test function |
| CN101777327B (en) * | 2009-01-13 | 2011-12-07 | 福州星网视易信息系统有限公司 | Method for judging best using distance of visual screen |
| CN102548464A (en) * | 2009-08-03 | 2012-07-04 | 耐克国际有限公司 | Vision testing and/or training using adaptable visual indicia |
| CN102599879A (en) * | 2012-02-23 | 2012-07-25 | 天津理工大学 | Self-adaptive eyesight test intelligent system and eyesight test method |
| CN102670162A (en) * | 2012-05-31 | 2012-09-19 | 天津三星电子有限公司 | Electronic display device and method for testing eyesight by using electronic display device |
| CN104510442A (en) * | 2014-12-17 | 2015-04-15 | 中国科学院长春光学精密机械与物理研究所 | Digital colorful eyesight testing method |
| CN105231986A (en) * | 2015-11-16 | 2016-01-13 | 中国人民解放军海军总医院 | Dynamic visual acuity testing system and method |
| CN105231988A (en) * | 2015-11-16 | 2016-01-13 | 中国人民解放军海军总医院 | Method for regulating sighting mark moving speed in dynamic visual acuity testing system |
| CN105996976A (en) * | 2016-07-04 | 2016-10-12 | 金晓冬 | Intelligent vision standard detector |
| CN105996975A (en) * | 2016-05-31 | 2016-10-12 | 乐视控股（北京）有限公司 | Method, device and terminal for testing vision |
| CN106137115A (en) * | 2016-08-04 | 2016-11-23 | 西安培华学院 | A kind of Intelligent eyesight tester |
| CN106333641A (en) * | 2016-01-15 | 2017-01-18 | 北京星辰万有科技有限公司 | Automatic eyesight tester |
-
2002
- 2002-08-12 CN CN 02138100 patent/CN1394544A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298285C (en) * | 2004-03-22 | 2007-02-07 | 长安大学 | Kineto plast sight detector for automobile driver |
| CN101453588B (en) * | 2007-11-30 | 2011-11-16 | 深圳Tcl新技术有限公司 | Television set having eyesight test function |
| CN101777327B (en) * | 2009-01-13 | 2011-12-07 | 福州星网视易信息系统有限公司 | Method for judging best using distance of visual screen |
| CN102548464A (en) * | 2009-08-03 | 2012-07-04 | 耐克国际有限公司 | Vision testing and/or training using adaptable visual indicia |
| CN102599879A (en) * | 2012-02-23 | 2012-07-25 | 天津理工大学 | Self-adaptive eyesight test intelligent system and eyesight test method |
| CN102670162A (en) * | 2012-05-31 | 2012-09-19 | 天津三星电子有限公司 | Electronic display device and method for testing eyesight by using electronic display device |
| CN104510442A (en) * | 2014-12-17 | 2015-04-15 | 中国科学院长春光学精密机械与物理研究所 | Digital colorful eyesight testing method |
| CN105231986A (en) * | 2015-11-16 | 2016-01-13 | 中国人民解放军海军总医院 | Dynamic visual acuity testing system and method |
| CN105231988A (en) * | 2015-11-16 | 2016-01-13 | 中国人民解放军海军总医院 | Method for regulating sighting mark moving speed in dynamic visual acuity testing system |
| CN106333641A (en) * | 2016-01-15 | 2017-01-18 | 北京星辰万有科技有限公司 | Automatic eyesight tester |
| CN105996975A (en) * | 2016-05-31 | 2016-10-12 | 乐视控股（北京）有限公司 | Method, device and terminal for testing vision |
| CN105996976A (en) * | 2016-07-04 | 2016-10-12 | 金晓冬 | Intelligent vision standard detector |
| CN106137115A (en) * | 2016-08-04 | 2016-11-23 | 西安培华学院 | A kind of Intelligent eyesight tester |
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