CN109864697A - A kind of survey viewing system being self-regulated according to measured's position height parameter - Google Patents
A kind of survey viewing system being self-regulated according to measured's position height parameter Download PDFInfo
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- CN109864697A CN109864697A CN201910055673.XA CN201910055673A CN109864697A CN 109864697 A CN109864697 A CN 109864697A CN 201910055673 A CN201910055673 A CN 201910055673A CN 109864697 A CN109864697 A CN 109864697A
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Abstract
The present invention relates to a kind of survey viewing systems being self-regulated according to measured's position height parameter, it includes visual chart that it, which surveys viewing system, the visual chart, which has, surveys view reading, the visual chart is shown in a measuring surface, the measured is stood in front of the measuring surface, a measurement distance is formed between the measured and the measuring surface, when the survey viewing system works, the survey viewing system detects the measured eye position information, upper-lower height of the survey view reading in the measuring surface is then adjusted according to the eye position information, it is in the survey in same level height with the measured eyes depending on reading.
Description
Technical field
The present invention relates to a kind of system for measuring human eyesight, particularly relates to the target in a kind of visual chart and survey view reading energy
Enough position adjust automaticallies according to human eye, the survey for being in survey in same level height with the measured eyes depending on reading, which regards, is
System.
Background technique
It is well known that the eyes of human body are a kind of important human organs, the optics in the human perception external world can be helped
Information periodically needs to measure human eyesight to protect the eyes of human body in medical practice, first to generate in eye illness
Phase timely Information, is targetedly treated, to have the function that protect human eye.
Medical worker grasps human eye's eyesight in practice, the conventional means of state are periodically to survey to human eyesight
Amount, and measuring main means all is realized by measurement visual chart, visual chart is the chart for measuring eyesight.
In practice, visual chart can be the diversified forms such as diagrammatic form, lamp box.
When measuring, visual chart fixation is hung on metope, and the measured is stood in front of visual chart, and apart from view
Power table a distance (generally 5 meters), the measured is respectively with the reading on simple eye observation visual chart, and gauger is according to measured
The reading that person's eyes can be seen obtains the eyesight state of human eye.
But above-mentioned measurement method is described below now there is also many disadvantages.
Firstly, since visual chart is that fixation is hung on metope in traditional measurement method, so when different height
When the measured is stood in front of visual chart, eyes can not be completely contour with the reading on visual chart, and then can lead
Test judging result is caused error occur, the serious judgement that influences medicine or medical level, to tested inaccurate so as to cause test
Person brings serious consequence.Secondly, need the measured to be in 5 meters in front of visual chart of position in the measurement of the standard of progress,
That is need fixed the distance between the measured and visual chart, but in practicing most of rooms do not have it is such big
Room width, and then bring puzzlement to operator.In addition, having to configure relevant medical matters during traditional measurement
Personnel carry out subsidiary, for example, indicated one by one using indicating arm, guide the measured reading reading to measure, it is this
Measurement method not only inefficiency, while labor intensive for no reason is needed, it is as described above the major defect of traditional technology.
Summary of the invention
The technical scheme adopted by the invention is as follows: a kind of survey view system being self-regulated according to measured's position height parameter
System, it is characterised in that: including visual chart, which, which has, surveys view reading, which shows in a measuring surface, is measured
Person stands in front of the measuring surface, and a measurement distance, when measurement, the measured observation are formed between the measured and the measuring surface
The survey in the measuring surface regards reading, and exported by the measured its observed by survey view reading correctness obtain by
The eyesight value of gauger's eyes, when which works, which detects the measured eye position information, and
Upper-lower height of the survey view reading in the measuring surface is adjusted according to the eye position information afterwards, makes survey view reading and is measured
Person's eyes are in same level height.
The survey regards reading as a survey view reading in the visual chart, or is a line survey view reading in the visual chart, or to be somebody's turn to do
Multirow surveys view reading in visual chart, or to differentiate the sighting target at 1 ' visual angle in the visual chart, or is 5.0/1.0 row sighting target.The view
It is normal that the sighting target that 1 ' visual angle can be differentiated in power table, which is that regulation can differentiate the eyesight at 1 ' visual angle in twenty-twenty vision standard in visual chart,
Visual standards are denoted as 5 points, i.e., 5.0, are equivalent to 1.0 eyesights of decimal record, 6/6 or 20/20 eyesight of score record.
The survey viewing system includes movement cabinet and driving unit, which has front display surface, the visual chart
It is fixed on the front display surface, which drives the movement cabinet to move up and down, so that being somebody's turn to do on the visual chart
Surveying can move up and down depending on reading.
The movement cabinet includes backboard, shell, rack gear and guide rail, wherein the backboard is fixed on metope, the visual chart
It is arranged on the shell, which is arranged in the back plate, which is arranged in the shell, which is slidably arranged in this and leads
On rail, which is gear motor, which is meshed with the rack gear, and when work, which is rotated,
Moved up and down by the rack drives shell, the visual chart enable to move up and down, make survey view reading can with it is measured
Person's eyes are in same level height.
The survey viewing system further includes camera detection mould group, which is able to detect the measured eyes position
Confidence breath.
The survey viewing system further includes straight line laser transmitter, which can emit straight line laser, laser
Reticle projection prompts the standing place of the measured standard on bottom surface.The shape of the straight line laser is variable, can be cross
The locative figure with two-dimensional graphical features of shape, square shape, X-shaped, human foot shape or other shapes.The laser mark
The straight line laser that line transmitter is issued is the X-Y scheme that can express distance and position.
After the height of survey view reading determines, the position locking of the survey viewing system.To avoid shaking due to human eye ball
Or other happen cause the survey viewing system again moving influence measurement effect the occurrence of.
The survey viewing system further includes sensor, and the validity of detected person is identified by the sensor.The sensor can
The measured and the environment on its periphery are distinguished, for example, survey viewing system front is stood simultaneously when more people, the sensing
Device can distinguish true the measured to have the function that identify detected person's validity.
The survey viewing system further includes light sensor, is given a test of one's eyesight table brightness value by the light sensor, determines eyesight
Whether table is up to standard.In practice when artificial light, direct illumination method is such as used, brightness value is not less than 300lx.
A kind of survey viewing system being self-regulated according to measured's position height parameter comprising visual chart, the visual chart
With survey view reading, the visual chart show in a measuring surface, the measured stand in front of the measuring surface, the measured with should
A measurement distance is formed between measuring surface, when measurement, the measured observes the view reading of the survey in the measuring surface, and by tested
The survey observed by its of amount person's output obtains the eyesight value of the measured eyes depending on the correctness read, survey viewing system work
When, which detects the measured eye position information, then adjusts survey view according to the eye position information and reads
Upper-lower height of the number in the measuring surface is in the survey in same level height with the measured eyes depending on reading, same with this
When, which detects the measurement distance, adjusts survey view reading profile in the measuring surface by the numerical value of the measurement distance
Size, reach according to the survey of the position analysis of the measured regard reading profile size, keep the measured any
Standing place is convenient for measuring.
The survey viewing system includes visual chart projector, which shows visual chart projection in the measuring surface, should
When surveying viewing system work, which detects the measured eye position information, then according to the eye position information,
The projector changes its crevice projection angle and adjusts upper-lower height of the survey view reading in the measuring surface, makes survey view reading and tested
Amount person's eyes are in same level height, and at the same time, which detects the measurement distance, pass through the measurement distance
Numerical value adjusts the size that the projector projects survey view reading profile in the measuring surface.
The survey viewing system includes eyesight table display, and survey view reading shows the display of the display on the display
Interface is the measuring surface, and when which works, which detects the measured eye position information, then root
According to the eye position information, changes the display position of survey view reading on the display, make survey view reading and the measured
Eyes are in same level height, and at the same time, which detects the measurement distance, pass through the numerical value of the measurement distance
Adjust the size that survey view reading icon profile is shown on the display.
A kind of adjustment control device of visual chart, the adjustment control device is independently of visual chart carrier, adjustment control dress
It is connected when setting work with visual chart carrier, visual chart is arranged on the visual chart carrier, which, which has, surveys view reading
Number, the measured is stood in front of the visual chart carrier, and when measurement, the measured observes the view reading of the survey on the visual chart,
And the eyesight value of the measured eyes, the tune are obtained depending on the correctness read by the survey observed by its of the measured output
Whole control device can drive the visual chart carrier movement, and the survey is made to be in same level height with the measured eyes depending on reading
On.
In practice, which can pass through face camera or iris camera or human eye detection mould group simultaneously
The position of eyes is detected, or the height of eye is calculated by a certain physical trait of camera detection, and then drive the visual chart
Carrier movement is in the survey in same level height with the measured eyes depending on reading.In practice, which can
To drive visual chart carrier actions using the various ways such as motor, belt, gear, hydraulic cylinder, pneumatic cylinder.
The invention has the benefit that the survey viewing system detects the measured eye position letter when the present invention works
Breath then adjusts upper-lower height of the survey view reading in the measuring surface according to the eye position information, make survey view reading with
The measured eyes are in same level height, that is to say, that so that the measured eyes is looked at survey view reading straight, to protect
The measurement posture of card standard, to promote the accuracy of measurement, at the same time, which detects the measurement distance, by this
The numerical value of measurement distance adjusts the size of survey view reading profile in the measuring surface, to guarantee the measurement posture of standard, to reach
To the size for regarding reading profile according to the survey of the position analysis of the measured, enable any standing place of the measured,
It is convenient for measuring.
Detailed description of the invention
Fig. 1 is the principle of the present invention schematic diagram.
Fig. 2 is the structural schematic diagram of present invention movement cabinet.
Fig. 3 is the working principle diagram of visual chart projector of the present invention.
Fig. 4 is the working principle diagram of eyesight table display of the present invention.
Fig. 5 is the schematic illustration that visual chart of the present invention adjusts control device.
Specific embodiment
As shown in Figures 1 to 4, a kind of survey viewing system being self-regulated according to measured's position height parameter comprising view
Power table 10, which, which has, surveys view reading 11.
When specific implementation, it can be letter e or C etc. which, which regards reading 11, be seen by the measured eyes
Observe the vision condition of correction judgement the measured eyes of reading opening direction.
The visual chart 10 shows that in a measuring surface 20, the measuring surface 20 can be the metope erect or projection screen etc.
Deng.
The measured is stood in 20 front of the measuring surface, and a measurement distance is formed between the measured and the measuring surface 20
30。
When measurement, the measured observe the survey in the measuring surface 20 view reading 11, and by the measured export its
The observed survey obtains the eyesight value of the measured eyes depending on the correctness of reading 11.
When the survey viewing system works, which detects the measured eye position information, then according to the eye
Eyeball location information adjusts upper-lower height of the survey view reading 11 in the measuring surface 20, makes survey view reading 11 and the measured eye
Eyeball is in same level height, that is to say, that so that the measured eyes is looked at survey view reading 11 straight, to guarantee standard
Posture is measured, to promote the accuracy of measurement.
At the same time, which detects the measurement distance 30, adjusts the measurement by the numerical value of the measurement distance 30
The size of survey view 11 profiles of reading on face 20, to guarantee the measurement posture of standard, to reach the position according to the measured
The size for automatically controlling survey view 11 profiles of reading, enables any standing place of the measured, is convenient for measuring.
That is, more big then survey view 11 profiles of reading of the numerical value of the measurement distance 30 are bigger, meanwhile, the measurement distance
Smaller then survey view 11 profiles of reading of 30 numerical value are smaller.
When specific implementation, above-mentioned function of the invention can be supported there are many better embodiment, is described respectively
It is as follows.
The survey as described above regards reading 11 and surveys view as a survey view reading in the visual chart, or for a line in the visual chart
Reading, or view reading is surveyed for multirow in the visual chart, or for the sighting target at 1 ' visual angle can be differentiated in the visual chart.Energy in the visual chart
It is twenty-twenty vision mark that the sighting target for differentiating 1 ' visual angle, which is that regulation can differentiate the eyesight at 1 ' visual angle in twenty-twenty vision standard in visual chart,
Standard is denoted as 5 points, i.e., 5.0, is equivalent to 1.0 eyesights of decimal record, 6/6 or 20/20 eyesight of score record.
As shown in Fig. 2, the survey viewing system includes movement cabinet 40 and driving unit 50, which has front
Display surface, the visual chart 10 are fixed on the front display surface, which drives about 40 movement cabinet fortune
It is dynamic, so that the survey on the visual chart 10 can move up and down depending on reading 11.
When specific implementation, which includes backboard 41, shell 42, rack gear 43 and guide rail 44, wherein
The backboard 41 is fixed on metope, which is arranged on the shell 42, which is arranged in the backboard 41.
The rack gear 43 is arranged in the shell 42, which is slidably arranged on the guide rail 44, which is
Gear motor, the gear motor are meshed with the rack gear 43.
When work, gear motor rotation drives the shell 42 to move up and down, makes this to reach by the rack gear 43
Visual chart 10 can move up and down, and the survey is enable to be in the work in same level height with the measured eyes depending on reading 11
With.
When specific implementation, which further includes camera detection mould group 60, the camera detection mould group 60
It is able to detect the measured eye position information, the driving unit 50 movement is then controlled according to the eye position information, makes this
Driving unit 50 drives the movement cabinet 40 to move up and down, and the survey is enable to be in same water with the measured eyes depending on reading 11
Effect in flat height.
When specific implementation, which further includes straight line laser transmitter 70, the straight line laser transmitter 70
Straight line laser can be emitted, straight line laser is incident upon on bottom surface with the standing place for prompting the measured standard and distance.This swashs
The shape of cursor line is variable, can be "-" type, cross, square shape, X-shaped, and human foot shape or other shapes have two
Tie up the locative figure of graphic feature.
In practice, the camera detection mould group 60 and the straight line laser transmitter 70 are integrally disposed in an integrated box 80
In, which is arranged in 40 side of movement cabinet.
As described above, the present invention it is automatic can to implement human height by a camera combination straight line laser in practice
Measurement, judges the body height of tester in conjunction with human eye automatic tracing, and the specific locations of eyes automatically adjusts visual chart
Highly, by lifting device, the adjusting of visual chart height is carried out, survey view reading 11 is made to keep same with the eyes of examinee always
One horizontal line.
When specific implementation, which further includes master control borad, LED light, control button, light and distance
Sensor 71, transmission control module, power management module, wherein LED light, control button, light and range sensor
71, transmission control module, power management module, camera detection mould group 60 and straight line laser transmitter 70 while and master control borad
It is connected.
When in use, the present invention is powered after starting, and a laser rays table can be gone out by laser projection, and distance is 5 meters,
Camera is as a reference point with this laser rays, analyzes automatic calculating human height by portrait, height carries out people while monitoring
Eye detection, adjusts its height by the lifting device of visual chart, keeps examinee's eye contour with 5.0 row sighting target of visual chart always,
Reach the code requirement of standard.Meanwhile Chinese adult seniority top digit is counted in conjunction with the average height low level of 6 years old children of China
It is the cm of 103 cm~174, this range adjusts section as this patent product upper-lower height.
In addition in practice it is emphasized that whole control section and visual chart of the invention is combined together, compact-sized
Rationally.
The visual chart (including screen is shown) with lamp box can be used in practice, the surface white background brightness limited is 200cm/
M^2, if ambient light illumination is not less than 300lux using non-lamp box, the present invention is provided with ambient brightness detection sensor,
When detecting ambient light lower than 300lux, then passes through LED light or voice reminder user carries out the adjusting of light, with
Meet standard requirements.
Of the invention 5 meters are apart from straight line laser emitting mould train, it is therefore an objective to solve measured's measuring distance it is nonstandard and need
It manually to determine examinee's distance problem, the lines of a certain length be emitted by Laser emission mould group, this lines is as 5 meters
Boundary (it is exactly 5 meters that this patent, which does not limit, can also according to actual test environment demand, can by control button adjust make
The distance that user needs, such as 2.6 meters or other distances).In addition, 5 meters of laser distance line marks, can be set as "-" type, cross
The locative figure with two-dimensional graphical features of shape, square shape, X-shaped, human foot shape or other shapes, it is ensured that tested
The standing distance of person is precisely.
It is being stood when user is in straight line laser position station, range sensor detects someone, starts the height of camera
Detection and eye tracking accurately obtain eyeball position after judging the height of examinee, then through camera, with eyeball at this time
Height, come determine visual chart survey view reading 11 height, guarantee both be in same horizontal line and height.
After camera captures human eye, and after regulating visual chart height, present level position is locked, human eye is avoided to shake
Movement that is dynamic and causing height.
Visual chart height adjustment of the invention can use device of the motor with sliding rail, such as detect that examinee is children,
And at the same time determining the height of eyes by camera, then visual chart is adjusted down, forms a new height, if detection
It is adult to examinee, then visual chart is up adjusted, and forms a new height, and the preferable adjustable range of the present invention is 103 cm
The adjusting section of~174 cm, i.e. 71cm.
Height adjustment device of the invention can be realized in such a way that motor drives sliding rail, can also use cylinder tune
Section height or manual adjustment.
If the accuracy of judgement may be will affect in the personnel that visual chart periphery has multidigit etc. to be tested or unrelated,
This patent is by only judging the human body distance of the examinee in straight line laser region determines whether it is true examinee, this non-region
Ignore, be not processed.
In addition, 5 meters of laser distance line target implementation methods of the invention, can also use manual measurement distance, or logical
It crosses common light projection pattern to realize, the distance measurement method of ultrasonic wave can also be used, lead to when examinee is in 5 meters of ranges
Cross light, the method for voice reminder is informed, or by one can the screen of display distance numerical value show the reality of current examinee
Border distance.
The measurement of examinee's height can also use independent in addition to the identification height of the present invention using camera
One infrared, ultrasonic unit is placed into the head of examinee, projects floor down from head when measurement, realizes
The detection of human height passes through voice informing or light prompting when there is testing result.
Outside the tracking of the present invention for realizing eyeball using camera, it is also possible to determine people by face identification method
Body height, or eyeball position height is realized using iris identification method, final purpose be realize eyeball or head height and
The height for surveying view reading 11 is consistent.
Example discussed above of the present invention, be determined according to laser distance line mark projection -> range sensor 5 meters of distances ->
The step of camera detection human height and eyeball position -> adjusting and locking visual chart height, is realized, when can also pass through change
These sequence of steps, or individually one or several steps are realized, in the protection scope of this patent.
The present invention be it is integrated, also can be made an independent controller and add transmission mechanism, be suitable on the market
Traditional lamp box visual chart, papery visual chart can allow and use, reduce the purchase machine cost of user.
Sighting target example of the invention is illustrated using lamp box sighting target visual chart, but can also be projected out view by the way of projection
It marks on a map case, height, which can then pass through, to be adjusted the height of projection arrangement and carry out height adjustment, or adjusts the projection lamp angle of projection arrangement
Degree changes the height for surveying view reading 11, belongs to this patent protection category.
As shown in figure 3, another better embodiment of the invention is the survey viewing system when specific implementation
Including visual chart projector 91, which shows the visual chart 10 projection in the measuring surface 20.
When the survey viewing system works, which detects the measured eye position information, then according to the eye
Eyeball location information, the projector 91 change its crevice projection angle and adjust upper-lower height of the survey view reading 11 in the measuring surface 20,
It is in the survey in same level height with the measured eyes depending on reading 11.
At the same time, which detects the measurement distance 30, adjusts the projection by the numerical value of the measurement distance 30
Device 91 projects the size of survey view 11 profiles of reading in the measuring surface 20.
As shown in figure 4, another better embodiment of the invention is the survey viewing system packet when specific implementation
Eyesight table display 92 is included, which can show equipment for light-emitting diode display, LCD TV etc., and survey view reading 11 is aobvious
Show on the display 92, the display interface of the display 92 is the measuring surface 20.
When the survey viewing system works, which detects the measured eye position information, then according to the eye
Eyeball location information changes display position of the survey view reading 11 on the display 92, makes survey view reading 11 and the measured
Eyes are in same level height.
At the same time, which detects the measurement distance 30, is adjusted by the numerical value of the measurement distance 30
The size of survey view 11 icon profiles of reading is shown on the display 92.
A method of according to measured's position height parameter measurement eyesight comprising following steps, first by visual chart
10 show in a measuring surface 20, which, which has, surveys view reading 11, and the measured is stood in 20 front of the measuring surface, quilt
A measurement distance 30 is formed between gauger and the measuring surface 20.
When measurement, the measured observe the survey in the measuring surface 20 view reading 11, and by the measured export its
The observed survey obtains the eyesight value of the measured eyes depending on the correctness of reading 11.
When measurement, the measured eye position information is detected by survey viewing system, is then adjusted according to the eye position information
Upper-lower height of the survey view reading 11 in the measuring surface 20, makes the survey be in same level with the measured eyes depending on reading 11
In height, that is to say, that so that the measured eyes is looked at survey view reading 11 straight, to guarantee the measurement posture of standard, to mention
Rise the accuracy of measurement.
At the same time, which detects the measurement distance 30, adjusts the measurement by the numerical value of the measurement distance 30
The size of survey view 11 profiles of reading on face 20, to guarantee the measurement posture of standard, to reach the position according to the measured
The size for automatically controlling survey view 11 profiles of reading, enables any standing place of the measured, is convenient for measuring.
It is worth noting that, the lamp box for surveying eye is mobile, it is that can be carried out by the way of identifying human eye, knowledge can also be passed through
The mode of not certain mark carries out, such as shutter, when getting the right lensses for one's eyeglasses, it may be desirable to one eye is blocked, so this shutter may also
It is an identification object.It when scanning a kind of specific identification object, can also automatically adjust, survey the height of view lamp box.In other words,
The lamp box for surveying view is mobile, is not necessarily human eye, is also possible to other marks.
As shown in figure 5, a kind of adjustment control device of visual chart, the adjustment control device 100 is independently of visual chart carrier
200, while the adjustment control device 100 can also be connected with visual chart carrier 200, visual chart 10 is arranged in the visual chart carrier
On 200, which, which has, surveys view reading 11, and the measured is stood at 200 front of the visual chart carrier, measurement, is tested
Amount person observes the view of the survey on visual chart reading 11, and passes through survey view reading 11 observed by its of the measured output
Correctness obtains the eyesight value of the measured eyes, which can drive the visual chart carrier 200 to move,
It is in the survey in same level height with the measured eyes depending on reading 11.In practice, which can be adopted
Visual chart carrier actions are driven with various ways such as motor, belt, gear, hydraulic cylinder, pneumatic cylinders.
In practice, the adjustment control device 100 can by face camera or iris camera detection eye-level, or
Person drives the up and down motion of the adjustment control device 100 by the position that some physical trait of camera detection calculates eye,
To drive the visual chart carrier 200 of assembly to move, the survey is made to be in same level height with the measured eyes depending on reading 11
On, such as detect that examinee is children, and at the same time determine the height of eyes by camera, then the adjustment control device band
Dynamic visual chart carrier is adjusted down, forms a new height, if detecting that examinee is adult, the adjustment control device
It drives visual chart carrier visual chart up to adjust, forms a new height.
Claims (13)
1. a kind of survey viewing system being self-regulated according to measured's position height parameter, it is characterised in that:, should including visual chart
Visual chart, which has, surveys view reading, which shows that in a measuring surface, the measured is stood in front of the measuring surface, is measured
A measurement distance is formed between person and the measuring surface, when measurement, the measured observes the view reading of the survey in the measuring surface, and leads to
It crosses the survey observed by its of the measured output and obtains the eyesight value of the measured eyes, survey view system depending on the correctness read
When system work, which detects the measured eye position information, then should according to eye position information adjustment
Upper-lower height of the view reading in the measuring surface is surveyed, is in the survey in same level height with the measured eyes depending on reading.
2. a kind of survey viewing system being self-regulated according to measured's position height parameter as described in claim 1, feature
Be: the survey regards reading and surveys view reading as a survey view reading in the visual chart, or for a line in the visual chart, or is the eyesight
Multirow surveys view reading in table, or to differentiate the sighting target at 1 ' visual angle in the visual chart, or is 5.0/1.0 row sighting target.
3. a kind of survey viewing system being self-regulated according to measured's position height parameter as described in claim 1, feature
Be: the survey viewing system includes movement cabinet and driving unit, which has front display surface, which fixes
It is arranged on the front display surface, which drives the movement cabinet to move up and down, so that the survey on the visual chart regards
Reading can move up and down.
4. a kind of survey viewing system being self-regulated according to measured's position height parameter as claimed in claim 2, feature
Be: the movement cabinet includes backboard, shell, rack gear and guide rail, wherein the backboard is fixed on metope, which sets
It sets on the shell, which is arranged in the back plate, which is arranged in the shell, which is slidably arranged in the guide rail
On, which is gear motor, which is meshed with the rack gear, and when work, gear motor rotation is logical
The up and down motion of the rack drives shell is crossed, the visual chart is enable to move up and down, makes the survey can be with the measured depending on reading
Eyes are in same level height.
5. a kind of survey viewing system being self-regulated according to measured's position height parameter as claimed in claim 1 or 3, special
Sign is: the survey viewing system further includes camera detection mould group, which is able to detect the measured eyes position
Confidence breath.
6. a kind of survey viewing system being self-regulated according to measured's position height parameter as claimed in claim 1 or 3, special
Sign is: the survey viewing system further includes straight line laser transmitter, which can emit straight line laser, laser mark
Line is incident upon the standing place that the measured standard is prompted on bottom surface.
7. a kind of survey viewing system being self-regulated according to measured's position height parameter as described in claim 1, feature
It is: after the height of survey view reading determines, the position locking of the survey viewing system.
8. a kind of survey viewing system being self-regulated according to measured's position height parameter as described in claim 1, feature
Be: the survey viewing system further includes sensor, and the validity of detected person is identified by the sensor.
9. a kind of survey viewing system being self-regulated according to measured's position height parameter as described in claim 1, feature
Be: the survey viewing system further includes light sensor, is given a test of one's eyesight table brightness value by the light sensor, determines that visual chart is
It is no up to standard.
10. a kind of survey viewing system being self-regulated according to measured's position height parameter, it is characterised in that: including visual chart,
The visual chart, which has, surveys view reading, which shows that in a measuring surface, the measured is stood in front of the measuring surface, is tested
A measurement distance is formed between amount person and the measuring surface, when measurement, the measured observes the view reading of the survey in the measuring surface, and
The eyesight value of the measured eyes is obtained depending on the correctness read by the survey observed by its of the measured output,
When the survey viewing system works, which detects the measured eye position information, then according to the eyes position
Confidence breath adjusts upper-lower height of the survey view reading in the measuring surface, is in the survey with the measured eyes depending on reading same
In level height, at the same time, which detects the measurement distance, adjusts the measuring surface by the numerical value of the measurement distance
The size of upper survey view reading profile, reaches the size for regarding reading profile according to the survey of the position analysis of the measured, makes
The measured can any standing place, be convenient for measuring.
11. a kind of survey viewing system being self-regulated according to measured's position height parameter as claimed in claim 10, special
Sign is: the survey viewing system includes visual chart projector, which shows the survey in the measuring surface for visual chart projection
When viewing system works, which detects the measured eye position information, should then according to the eye position information
Projector changes its crevice projection angle and adjusts upper-lower height of the survey view reading in the measuring surface, makes survey view reading and is measured
Person's eyes are in same level height, and at the same time, which detects the measurement distance, pass through the number of the measurement distance
Value adjusts the size that the projector projects survey view reading profile in the measuring surface.
12. a kind of survey viewing system being self-regulated according to measured's position height parameter as claimed in claim 10, special
Sign is: the survey viewing system includes eyesight table display, and survey view reading shows display circle of the display on the display
Face is the measuring surface, and when which works, which detects the measured eye position information, then basis
The eye position information changes the display position of survey view reading on the display, makes survey view reading and the measured eye
Eyeball is in same level height, and at the same time, which detects the measurement distance, passes through the numerical value tune of the measurement distance
The size of survey view reading icon profile is shown on the whole display.
13. a kind of adjustment control device of visual chart, it is characterised in that: the adjustment control device, should independently of visual chart carrier
It is connected when adjustment control device work with visual chart carrier, visual chart is arranged on the visual chart carrier, the visual chart
With view reading is surveyed, the measured is stood in front of the visual chart carrier, when measurement, the measured observe on the visual chart should
View reading is surveyed, and the view of the measured eyes is obtained depending on the correctness read by the survey observed by its of the measured output
Force value, the adjustment control device can drive the visual chart carrier movement, be in the survey together with the measured eyes depending on reading
In one level height.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110367926A (en) * | 2019-07-22 | 2019-10-25 | 天津市索维电子技术有限公司 | A kind of xerophthalmia check device and method applied to self-medicine |
| CN111543934A (en) * | 2020-04-29 | 2020-08-18 | 深圳创维－Rgb电子有限公司 | Vision detection method and device, electronic product and storage medium |
| CN111685722A (en) * | 2020-05-29 | 2020-09-22 | 义乌市光明工程近视防控研究所 | Wisdom campus is with intelligent visual detection system |
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2019
- 2019-01-22 CN CN201910055673.XA patent/CN109864697A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110367926A (en) * | 2019-07-22 | 2019-10-25 | 天津市索维电子技术有限公司 | A kind of xerophthalmia check device and method applied to self-medicine |
| CN111543934A (en) * | 2020-04-29 | 2020-08-18 | 深圳创维－Rgb电子有限公司 | Vision detection method and device, electronic product and storage medium |
| CN111685722A (en) * | 2020-05-29 | 2020-09-22 | 义乌市光明工程近视防控研究所 | Wisdom campus is with intelligent visual detection system |
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