CN110916609A - Vision detection device - Google Patents
Vision detection device Download PDFInfo
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- CN110916609A CN110916609A CN201911320915.XA CN201911320915A CN110916609A CN 110916609 A CN110916609 A CN 110916609A CN 201911320915 A CN201911320915 A CN 201911320915A CN 110916609 A CN110916609 A CN 110916609A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/0016—Operational features thereof
- A61B3/0033—Operational features thereof characterised by user input arrangements
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/0016—Operational features thereof
- A61B3/0025—Operational features thereof characterised by electronic signal processing, e.g. eye models
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/0016—Operational features thereof
- A61B3/0041—Operational features thereof characterised by display arrangements
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/02—Subjective types, i.e. testing apparatus requiring the active assistance of the patient
- A61B3/028—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing visual acuity; for determination of refraction, e.g. phoropters
- A61B3/032—Devices for presenting test symbols or characters, e.g. test chart projectors
Abstract
The present invention provides a vision testing device, comprising: the information input module is used for acquiring user identity information, and the user identity information comprises: user age information; the processing module is used for judging the initial position of the vision test of the user according to the age information of the user and acquiring a test picture matched with the age of the user in a picture set as a vision test picture set; the vision detection module is used for detecting the vision of the user based on the obtained vision test picture set; and the output module is used for outputting the vision detection result of the vision detection module. The invention has convenient detection process, can be independently finished by a user in the test process, does not need to pay extra labor cost, and has good economic value.
Description
Technical Field
The invention relates to the technical field of vision detection devices, in particular to a vision detection device.
Background
China is the country with the highest incidence rate of myopia, vision screening is paid attention to more and more families, schools and countries, and how to discover the vision problems of teenagers as early as possible becomes a central important task for the current vision control of China. One of the most important tools for traditional vision screening is visual chart light box E value detection.
The visual chart light box inspection is carried out by a professional inspector standing in front of the light box, the distance between an inspected person and the light box is 5m, the inspector inquires the opening direction of the E value of the inspected person according to the sequence of the E value from large to small until the E value is identified to be fuzzy, and the vision of the inspected person is the vision corresponding numerical value of the previous row.
The traditional visual chart lamp box E value detection has the problems of long time consumption, need of professional cooperation, high cost and low convenience.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides a vision testing apparatus suitable for a user to perform vision testing autonomously without manual operation, and an embodiment of the present invention is implemented by using the following technical solutions:
a vision testing apparatus, the apparatus comprising:
the information input module is used for acquiring user identity information, and the user identity information comprises: user age information;
the processing module is used for judging the initial position of the vision test of the user according to the age information of the user and acquiring a test picture matched with the age of the user in a picture set as a vision test picture set;
the vision detection module is used for detecting the vision of the user based on the obtained vision test picture set;
and the output module is used for outputting the vision detection result of the vision detection module.
Advantageously or exemplarily, the picture set comprises a plurality of test pictures with E-value icons, the E-value size in the test pictures corresponds to the E-value size in the standard eye chart, and the E-value icons in the test pictures are in 4 directions.
Advantageously or exemplarily, in the processing module, the module is configured to determine a starting position of the vision test of the user according to the age information of the user, and obtain a vision test picture set matching the age of the user from the picture set, specifically:
if the age information of the user is less than 4 years old, taking a test picture corresponding to the E value size in 0.4 row in the standard visual chart as an initial position, and further acquiring a test picture which is not more than the size in the picture set as a vision test picture set;
if the age information of the user is more than 4 years and less than 5 years, taking a test picture corresponding to the E value size in 0.5 row in the standard visual chart as an initial position, and further acquiring a test picture which is not more than the size in the picture set as a vision test picture set;
if the age information of the user is more than five years old and less than seven years old, taking a test picture corresponding to the E value size in the 0.6 row in the standard visual chart as an initial position, and further acquiring a test picture in the picture set, wherein the test picture is not more than the size, and the test picture is taken as a vision test picture set;
and if the age information of the user is more than seven years old, taking the test picture corresponding to the E value size in the 0.7 row in the standard visual chart as an initial position, and further acquiring the test picture which is not more than the size in the picture set as a vision test picture set.
Advantageously or exemplarily, the vision detection module comprises: the system comprises a picture display unit, a man-machine interaction unit and a vision detection unit;
the picture display unit is used for displaying a test picture, and the test picture is any one test picture in the vision test picture set;
the human-computer interaction unit is used for acquiring test information input by a user;
and the vision detection unit is used for judging whether the test information is matched with the test picture or not to obtain a vision detection result of the user.
Advantageously or exemplarily, the detecting of the vision of the user based on the acquired vision test picture set includes:
the method comprises the following steps: initially, setting the correct times and the error times to zero;
step two: selecting a corresponding test picture with the largest E value size from the vision test picture set as an initial test picture, and displaying the initial test picture through the picture display unit;
step three: acquiring test information input by a user through a man-machine interaction unit;
step four: the vision detection unit judges whether the test information input by the user is consistent with the direction of the E value in the test picture or not according to the test information input by the user and the test picture displayed by the picture display unit; if the number of times is consistent, adding 1 to the correct number of times, and if the number of times is inconsistent, adding 1 to the error number of times;
step five: repeatedly executing the second step to the fourth step; when the correct times are equal to N, executing a sixth step;
when the error times are equal to M, executing a step seven, wherein M, N is a preset positive integer;
step six: selecting a new initial position, and determining a new vision test picture set, wherein the method specifically comprises the following steps: determining the corresponding position of an E value icon in a test picture in the previous cycle in a standard visual chart, selecting the test picture corresponding to the E value size of the next row of the test picture corresponding to the corresponding position as a new initial position, acquiring the test pictures of which the sizes are not more than the size in a picture set as a new vision test picture set, setting the correct times and the error times to zero, selecting the corresponding test picture with the largest E value size from the new vision test picture set, displaying the test picture through a picture display unit, and repeating the third step to the fifth step;
step seven: and finishing the test, and generating a vision test result according to the maximum size of the E value in the current vision test picture set.
Beneficially or exemplarily, further comprising: before executing step seven, the method further comprises: carrying out fault tolerance detection on input information of a user, specifically:
setting an inner circulation value with an initial value of 1, judging whether the vision test picture set comprises a test picture of an initial position,
if yes, stopping executing the seventh step, returning to the first step to restart the test, and simultaneously setting the internal circulation value to zero;
if not, continuing to execute the step seven.
Beneficially or exemplarily, further comprising: the system also comprises a cloud end module, the cloud end module is used for receiving the vision detection result and uploading the vision detection result to a cloud end server,
beneficially or exemplarily, the mobile terminal further includes a ranging module, configured to obtain a distance value between the user and the device, and the processing module is further configured to receive the distance value, generate a start instruction to be sent to the vision detection module when the distance value is equal to a preset distance value, and the vision detection module starts after receiving the start instruction.
Advantageously or exemplarily, four sides of the E-value in the test picture are provided with a grid.
The various embodiments of the invention have the following beneficial effects: the invention has convenient detection process, can be independently finished by a user in the test process, does not need to pay extra labor cost, and has good economic value.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.
Fig. 1 is a block diagram of a vision testing apparatus according to the present invention.
Reference numerals: 1-an information entry module; 2-a processing module; 3-a vision detection module; 4-an output module; 31-a picture display unit; 32-a human-computer interaction unit; 33-vision detecting unit.
Detailed Description
The invention is further described below with reference to the following examples in conjunction with the accompanying drawings.
As shown in fig. 1, a vision testing apparatus, the apparatus comprising: the information input module is used for acquiring user identity information, and the user identity information comprises: user age information; the processing module is used for judging the initial position of the vision test of the user according to the age information of the user and acquiring a test picture matched with the age of the user in a picture set as a vision test picture set; the vision detection module is used for detecting the vision of the user based on the obtained vision test picture set; and the output module is used for outputting the vision detection result of the vision detection module.
During testing, a user firstly inputs identity information through the information input module 1, the processing module 2 judges the initial position of vision detection suitable for the age of the user according to the user information, particularly the age information input by the user, determines an initial vision detection picture set suitable for the vision detection from the picture set, and the vision detection module performs the vision detection on the user according to the initial vision detection picture set.
In one embodiment, the picture set includes a plurality of test pictures with E-value icons, the E-value size in the test pictures corresponds to the E-value size in the standard eye chart, and the E-value icons in the test pictures have 4 directions.
In the standard eye chart, the decimal records of the E value rows are distributed from 0.12 to 2.0, namely the E value rows are distributed from 0.12 to 2.0 in size, and each row has E values in four different directions. Therefore, the test pictures in the four E value directions for each size are collectively stored.
The invention has convenient detection process, can be independently finished by a user in the test process, does not need to pay extra labor cost, and has good economic value.
In one embodiment, a grid is arranged on four sides of the E value in the test picture.
In the embodiment, the grid is added at the E value to play a role of confusion, and when the user does not determine the direction of the E value, the grid is arranged to make the user more difficult to distinguish the direction of the E value, so that the user tends to input wrong test information. Therefore, the setting of the grid can effectively exclude the uncertain E value of the user, and the detection accuracy is improved.
In one embodiment, the information entry module 1 includes an image extraction unit and an image processing unit, and the information entry module acquires the identity information by means of face recognition. In another embodiment, the device is provided with a terminal through which the user enters personal identification information. In another embodiment, a two-dimensional code is provided, and the user inputs identity information on the personal mobile terminal by scanning the two-dimensional code.
In an embodiment, in the processing module, the module is configured to determine a starting position of the vision test of the user according to the age information of the user, and obtain a vision test picture set matching the age of the user from the picture set, specifically:
if the age information of the user is less than 4 years old, taking a test picture corresponding to the E value size in 0.4 row in the standard visual chart as an initial position, and further acquiring a test picture which is not more than the size in the picture set as a vision test picture set;
if the age information of the user is more than 4 years and less than 5 years, taking a test picture corresponding to the E value size in 0.5 row in the standard visual chart as an initial position, and further acquiring a test picture which is not more than the size in the picture set as a vision test picture set;
if the age information of the user is more than five years old and less than seven years old, taking a test picture corresponding to the E value size in the 0.6 row in the standard visual chart as an initial position, and further acquiring a test picture in the picture set, wherein the test picture is not more than the size, and the test picture is taken as a vision test picture set;
and if the age information of the user is more than seven years old, taking the test picture corresponding to the E value size in the 0.7 row in the standard visual chart as an initial position, and further acquiring the test picture which is not more than the size in the picture set as a vision test picture set.
The limit to specific age is obtained according to statistical data of development conditions of vision along with age, the purpose is to perform personalized vision detection fitting self conditions for users, and under the condition of other more accurate data, tests fitting self conditions of users can be performed according to other data instead of according to age, such as myopia degree and astigmatism degree.
In the embodiment, different initial positions are selected according to different ages of the users, so that better personalized configuration is realized, and the users of different ages can quickly perform vision detection according with self conditions.
In one embodiment, the vision detection module includes: the system comprises a picture display unit, a man-machine interaction unit and a vision detection unit; the picture display unit is used for displaying a test picture, and the test picture is any one test picture in the vision test picture set; the human-computer interaction unit is used for acquiring test information input by a user; and the vision detection unit is used for judging whether the test information is matched with the test picture or not to obtain a vision detection result of the user.
In one embodiment, the human-computer interaction unit is a rocker, and when the test picture is an E-value picture in different directions, a user inputs judgment on the E-value direction through the rocker, namely test information.
In an embodiment, the detecting the eyesight of the user based on the acquired vision test picture set specifically includes:
the method comprises the following steps: initially, setting the correct times and the error times to zero;
step two: selecting a corresponding test picture with the largest E value size from the vision test picture set as an initial test picture, and displaying the initial test picture through the picture display unit;
step three: acquiring test information input by a user through a man-machine interaction unit;
step four: the vision detection unit judges whether the test information input by the user is consistent with the direction of the E value in the test picture or not according to the test information input by the user and the test picture displayed by the picture display unit; if the number of times is consistent, adding 1 to the correct number of times, and if the number of times is inconsistent, adding 1 to the error number of times;
step five: repeatedly executing the second step to the fourth step; when the correct times are equal to N, executing a sixth step;
when the error times are equal to M, executing a step seven, wherein M, N is a preset positive integer;
step six: selecting a new initial position, and determining a new vision test picture set, wherein the method specifically comprises the following steps: determining the corresponding position of an E value icon in a test picture in the previous cycle in a standard visual chart, selecting the test picture corresponding to the E value size of the next row of the test picture corresponding to the corresponding position as a new initial position, acquiring the test pictures of which the sizes are not more than the size in a picture set as a new vision test picture set, setting the correct times and the error times to zero, selecting the corresponding test picture with the largest E value size from the new vision test picture set, displaying the test picture through a picture display unit, and repeating the third step to the fifth step;
step seven: and finishing the test, and generating a vision test result according to the maximum size of the E value in the current vision test picture set.
In one embodiment, M, N are all equal to 3.
In one embodiment, before performing step seven, the method further comprises: carrying out fault tolerance detection on input information of a user, specifically:
setting an inner circulation value with an initial value of 1, judging whether the vision test picture set comprises a test picture of an initial position,
if yes, stopping executing the seventh step, returning to the first step to restart the test, and simultaneously setting the internal circulation value to zero;
if not, continuing to execute the step seven.
In the embodiment, when the user operates the device, the user is easy to have no understanding on the testing process of the device and input the testing information by mistake, so that the internal circulation value is set, the user is allowed to perform one internal circulation in the initial line, and the accuracy of detection is improved.
In another embodiment, the inner loop value may also be set to allow the user to perform an inner loop once for each test picture set to ensure the accuracy of the vision test results. Specifically, an internal circulation value is set, and the initial value of the internal circulation value is 1; and when the error times are accumulated for M times, if the internal cycle value is 1 at the moment, selecting the corresponding test picture with the largest E value size as the test picture from the vision test picture set again, clearing the correct times and the error times, and simultaneously changing the internal cycle value to 0.
In one embodiment, the mobile terminal further comprises a cloud module, wherein the cloud module is used for receiving the vision detection result and uploading the vision detection result to a cloud server.
In this embodiment, set up high in the clouds module and upload the visual detection result, be convenient for the user obtains the visual detection result from mobile terminal, is favorable to the user to look over historical detection data simultaneously.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. A vision testing device, said device comprising:
the information input module is used for acquiring user identity information, and the user identity information comprises: user age information;
the processing module is used for judging the initial position of the vision test of the user according to the age information of the user and acquiring a test picture matched with the age of the user in a picture set as a vision test picture set;
the vision detection module is used for detecting the vision of the user based on the obtained vision test picture set;
and the output module is used for outputting the vision detection result of the vision detection module.
2. The vision testing device of claim 1, wherein said set of pictures includes a plurality of test pictures with E-value icons, the E-value size of said test pictures corresponds to the E-value size of a standard eye chart, and there are 4 directions of the E-value icons in said test pictures.
3. The vision testing apparatus according to claim 2, wherein in the processing module, the processing module is configured to determine a starting position of the vision testing of the user according to the age information of the user, and obtain a vision testing picture set matching the age of the user from a picture set, specifically:
if the age information of the user is less than 4 years old, taking a test picture corresponding to the E value size in 0.4 row in the standard visual chart as an initial position, and further acquiring a test picture which is not more than the size in the picture set as a vision test picture set;
if the age information of the user is more than 4 years and less than 5 years, taking a test picture corresponding to the E value size in 0.5 row in the standard visual chart as an initial position, and further acquiring a test picture which is not more than the size in the picture set as a vision test picture set;
if the age information of the user is more than five years old and less than seven years old, taking a test picture corresponding to the E value size in the 0.6 row in the standard visual chart as an initial position, and further acquiring a test picture in the picture set, wherein the test picture is not more than the size, and the test picture is taken as a vision test picture set;
and if the age information of the user is more than seven years old, taking the test picture corresponding to the E value size in the 0.7 row in the standard visual chart as an initial position, and further acquiring the test picture which is not more than the size in the picture set as a vision test picture set.
4. The vision testing device of claim 2, wherein said vision testing module comprises: the system comprises a picture display unit, a man-machine interaction unit and a vision detection unit;
the picture display unit is used for displaying a test picture, and the test picture is any one test picture in the vision test picture set;
the human-computer interaction unit is used for acquiring test information input by a user;
and the vision detection unit is used for judging whether the test information is matched with the test picture or not to obtain a vision detection result of the user.
5. The vision testing device of claim 4, wherein said vision testing device tests the vision of the user based on the obtained set of vision testing pictures, specifically:
the method comprises the following steps: initially, setting the correct times and the error times to zero;
step two: selecting a corresponding test picture with the largest E value size from the vision test picture set as an initial test picture, and displaying the initial test picture through the picture display unit;
step three: acquiring test information input by a user through a man-machine interaction unit;
step four: the vision detection unit judges whether the test information input by the user is consistent with the direction of the E value in the test picture or not according to the test information input by the user and the test picture displayed by the picture display unit; if the number of times is consistent, adding 1 to the correct number of times, and if the number of times is inconsistent, adding 1 to the error number of times;
step five: repeatedly executing the second step to the fourth step; when the correct times are equal to N, executing a sixth step;
when the error times are equal to M, executing a step seven, wherein M, N is a preset positive integer;
step six: selecting a new initial position, and determining a new vision test picture set, wherein the method specifically comprises the following steps: determining the corresponding position of an E value icon in a test picture in the previous cycle in a standard visual chart, selecting the test picture corresponding to the E value size of the next row of the test picture corresponding to the corresponding position as a new initial position, acquiring the test pictures of which the sizes are not more than the size in a picture set as a new vision test picture set, setting the correct times and the error times to zero, selecting the corresponding test picture with the largest E value size from the new vision test picture set, displaying the test picture through a picture display unit, and repeating the third step to the fifth step;
step seven: and finishing the test, and generating a vision test result according to the maximum size of the E value in the current vision test picture set.
6. The vision testing apparatus of claim 5, further comprising: before executing step seven, the method further comprises: carrying out fault tolerance detection on input information of a user, specifically:
setting an inner circulation value with an initial value of 1, judging whether the vision test picture set comprises a test picture of an initial position,
if yes, stopping executing the seventh step, returning to the first step to restart the test, and simultaneously setting the internal circulation value to zero;
if not, continuing to execute the step seven.
7. The vision testing apparatus of claim 1, further comprising: the visual detection system further comprises a cloud module, wherein the cloud module is used for receiving the visual detection result and uploading the visual detection result to a cloud server.
8. The vision testing device of claim 1, further comprising a distance measuring module for obtaining a distance value between a user and the device, wherein the processing module is further configured to receive the distance value, generate a start instruction to be sent to the vision testing module when the distance value is equal to a preset distance value, and the vision testing module is started after receiving the start instruction.
9. The vision testing device of claim 2, wherein the test picture has a grid on four sides of the value E.
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