Vision screening method, terminal, device and storage medium thereof

Abstract

The present invention relates to a vision screening method, terminal, device and storage medium thereof, the method comprising: obtaining the relative position of a tester and a vision screening test device, calculating the difference of the relative position, controlling the vision screening test device to move to compensate for the difference of the relative position to align with the tester, wherein aligning with the tester includes the distance between the tester and the tester being within a set range; enabling a vision screening device to perform a screening test, the vision screening device automatically aligning to the pupil of the tester, and generating a screening result in real time, and displaying at least one test standard to the pupil; identifying the gesture feature or voice feature of the tester, and changing the test standard according to the gesture feature or voice feature; and calculating a verification result according to the screening result and the test standard. The present invention solves the technical problem that the existing vision tester can only provide subjective vision measurement results of a person, and has the effect of automatically detecting and forming feedback to quickly give objective results.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a vision screening method, terminal, device and storage medium thereof. Background Art

[0002] A vision tester is an instrument for measuring vision and is used in ophthalmology hospitals and eyewear stores. A traditional vision tester is just a subjective vision measurement device with different sight mark patterns, and is often equipped with a remote control. The remote control is used to adjust the physical position of the vision tester or the position of the icons it displays. The remote control can also allow the person testing their vision to input the icon results they see. For example, the tester inputs the tester's feedback into the vision tester via the remote control. The tester's feedback may include left, right, down, up, OK, and unclear. The vision tester gives a measurement result based on all the results input by the same tester.

[0003] Existing vision testers have a single function and can only provide users with subjective vision measurement results. It is impossible for the device to automatically adjust to the correct position and automatically detect and form feedback to quickly give objective results. Summary of the invention

[0004] The first object of the present invention is to provide a vision screening method, which has the characteristics of automatically adjusting to the correct position, automatically detecting and forming feedback, and quickly giving objective results.

[0005] The above-mentioned object of the present invention is achieved through the following technical solutions:

[0006] A vision screening method comprises the following steps:

[0007] Obtaining the relative position of the test subject and the vision screening test device, calculating the difference in the relative positions, and controlling the vision screening test device to move to compensate for the difference in the relative positions so as to align the test subject, wherein aligning the test subject includes ensuring that the distance between the test subject and the vision screening test device is within a set range;

[0008] Activate a vision screener to perform a screening test, the vision screener automatically aligns to the pupil of the test subject, generates a screening result in real time, and displays at least one test standard to the pupil;

[0009] Manually or remotely control the test standard, and / or recognize the gesture characteristics or voice characteristics of the tester and change the test standard according to the gesture characteristics or voice characteristics;

[0010] The validation results are calculated based on the test standards corresponding to the screening results and the time they were generated.

[0011] By adopting the above technical solution, the vision screening equipment can automatically adjust its position with the tester after obtaining the tester's information, and then automatically perform screening tests and vision tests, and prompt the tester to change the test actions to actively obtain test results of different test standards, and quickly output objective verification results, thereby overcoming the shortcomings of traditional vision testers.

[0012] In a preferred example, the present invention can be further configured as follows: before obtaining the relative position of the tester and the vision screening test device, the method further includes:

[0013] The vision screening test equipment obtains and confirms the tester's information;

[0014] Prompt the current tester to display the test target and target status, where the target status refers to the display form of the test target;

[0015] The prompting of the current tester to display the test target and target status includes:

[0016] After the displayed test target changes, a voice prompt is issued, wherein the voice prompt is related to the changed test target;

[0017] After the verification result is calculated, the method includes:

[0018] Update the test standard set with multiple test standards, traverse multiple test standards, prompt the tester to change the target state to adapt to different test standards, verify the adapted target state and test standards, and output the verification results;

[0019] After traversal, the tester is prompted to change the test target and repeat the previous step until all test targets are tested; and,

[0020] Display and upload all verification results.

[0021] By adopting the above technical solution, the tester is reminded to change the target state, the interaction efficiency is high, and the tester has a high degree of cooperation.

[0022] In a preferred example, the present invention can be further configured as follows: the calculation of the relative position difference and the control of the vision screening test device to move to compensate for the relative position difference to align with the tester include:

[0023] If the difference value exceeds the set distance range for a period of time, the process will jump to the step of obtaining the tester's information repeatedly;

[0024] If the difference continues to exceed the set distance range for a period of time, choose whether to cancel the test. If the test is canceled, jump to the step of obtaining the tester's information. If the test is not canceled, re-obtain the relative position of the tester and the vision screening test device, and calculate the difference in relative position.

[0025] By adopting the above technical solution, when the position between the tester and the device does not meet the requirements for a long time, retesting is performed to avoid the position error affecting the accuracy of the output objective verification result.

[0026] In a preferred example, the present invention may be further configured as follows: further comprising: the step of obtaining the tester information and confirming the step is bound to the selection options of the screening test and the gesture features or voice features to be recognized;

[0027] After the gesture feature or the voice feature is identified, the selection options of the step of obtaining the tester information and confirming and the step of screening test are correspondingly determined.

[0028] By adopting the above technical solution, gesture control and voice control are realized, the diversity of interaction is improved, there is no need for the tester to control with the remote control, false triggering of the remote control is avoided, and the time spent on adapting to the control instructions of the remote control is saved.

[0029] In a preferred example, the present invention can be further configured as follows: the prompting of the tester to change the target state to adapt to different test standards includes:

[0030] The target state includes whether frame glasses are worn. The vision screening test equipment has a built-in AI neural network algorithm for identifying the target state image. If the AI ​​neural network algorithm recognizes that the target state is not wearing frame glasses, the vision screening test equipment skips the verification that the target state is wearing frame glasses.

[0031] By adopting the above technical solution, the target state can be automatically identified using the AI ​​neural network algorithm without manual marking.

[0032] The second object of the present invention is to provide a vision screening terminal, which has the characteristics of automatically adjusting to the correct position, automatically detecting and forming feedback, and quickly giving objective results.

[0033] The second object of the present invention is achieved through the following technical solutions:

[0034] A vision screening terminal comprises a height adjustment component and a vision screening test device provided on the height adjustment component and comprising a vision screening instrument and a vision checker, wherein the vision screening test device is data-connected to an image processing module, and the image processing module is data-connected to at least two cameras, and the cameras are used to measure the distance between a tester and the vision screening instrument;

[0035] The vision screening test equipment includes:

[0036] Confirmation information module, used to obtain and confirm the tester's information;

[0037] A position adjustment module, used for obtaining the relative position of the test subject and the vision screening test device, calculating the difference of the relative position, and controlling the height adjustment component to move the vision screening test device to compensate for the difference of the relative position so as to align the test subject, wherein aligning the test subject includes that the distance between the test subject and the test subject is within a set range;

[0038] A vision screening module, used to start the vision screening instrument to perform a screening test;

[0039] The prompt display module is used to prompt the current tester to display the test target and target status, wherein the target status is the display form of the test target;

[0040] A vision test module, used to start the vision tester to display the test standard for vision test, and update the test standard set with multiple test standards, traverse the multiple test standards, prompt the tester to change the target state to adapt to different test standards, verify the adapted target state and test standard, and output the verification result;

[0041] A calculation module, which is used to prompt the tester to change the test target after traversal and repeatedly call the vision inspection module until all test targets are tested; and

[0042] Display upload module, used to display and upload all verification results.

[0043] By adopting the above technical solution, after the confirmation information module obtains the tester's information, the position adjustment module can automatically adjust the position between it and the tester, and then the vision screening module and the vision inspection module automatically perform screening tests and vision tests. The prompt display module prompts the tester to change the test action to actively obtain the test results of different test standards, and the calculation module quickly outputs objective verification results, thereby overcoming the shortcomings of traditional vision testers.

[0044] In a preferred example, the present invention can be further configured as follows: the vision screening test equipment is data connected to a cloud platform and a third-party data center.

[0045] By adopting the above technical solutions, the data on the cloud platform can be used for continuous training of AI neural network algorithms, while the third-party data center can prevent data loss, facilitate management, and improve the stability of data storage.

[0046] The third object of the present invention is to provide a vision screening device which has the characteristics of automatically adjusting to the correct position, automatically detecting and forming feedback, and quickly giving objective results.

[0047] The third object of the present invention is achieved through the following technical solutions:

[0048] A vision screening device, comprising the vision screening terminal comprising a vision screening instrument and a vision tester, wherein the vision screening instrument is fixedly connected to the vision tester, the vision tester is detachably connected to a height adjustment component, the height adjustment component comprises a housing, a telescopic member and a sliding member, one end of the telescopic member is drivingly connected to the sliding member, the sliding member is detachably connected to the vision tester, and one end of the telescopic member is provided with a driving member;

[0049] An opening is provided on one side of the shell close to the vision tester, the sliding member is slidably installed in the opening, and the vision tester and the vision screening device are both fixedly connected to the sliding member.

[0050] By adopting the above technical solution, the driving member drives the telescopic member to rotate and drive the sliding member to move up and down, so that the vision screening terminal can move up and down with the sliding member. The position of the vision screening terminal can be adjusted according to the patient's height, so that the tester can automatically measure the vision in front of the vision screening terminal.

[0051] In a preferred example, the present invention can be further configured as follows: the camera includes a plurality of cameras fixedly mounted on an end of the vision tester away from the vision screening instrument.

[0052] By adopting the above technical solution, multiple cameras can be used for shooting, and distance data can be calculated based on the image position difference, which is also conducive to improving the accuracy of identifying the target state.

[0053] The fourth object of the present invention is to provide a computer storage medium that can store corresponding programs and has the characteristics of being able to automatically detect and form feedback after automatically adjusting to the correct position and quickly give objective results.

[0054] The fourth object of the present invention is achieved by the following technical solutions:

[0055] A computer-readable storage medium stores a computer program that can be loaded by a processor and execute any one of the vision screening methods described above.

[0056] In summary, the present invention includes at least one of the following beneficial technical effects:

[0057] 1. After obtaining the tester's information, the vision screening device can automatically adjust its position with the tester, and then automatically perform screening tests and vision tests, and prompt the tester to change the test action to actively obtain test results of different test standards, and quickly output objective verification results, overcoming the shortcomings of traditional vision testers;

[0058] 2. Use voice prompts to remind testers to change the target state, which has high interaction efficiency and makes testers more cooperative;

[0059] 3. Gesture control and voice control are realized, which improves the diversity of interaction. There is no need for testers to control with the remote control, which avoids false triggering of the remote control and saves time spent on adapting to the control instructions of the remote control. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 It is a schematic diagram of the method flow of embodiment 1 of the present invention.

[0061] Figure 2 It is a structural block diagram of the second embodiment of the present invention.

[0062] Figure 3 It is a schematic diagram of the overall structure of the third embodiment of the present invention.

[0063] Figure 4 It is a structural schematic diagram of another embodiment of the telescopic member of the present invention.

[0064] Figure 5 It is a schematic diagram of the overall structure of the housing and the sliding member according to another embodiment of the present invention.

[0065] Figure 6 It is a schematic diagram of the overall structure of a box body according to another embodiment of the present invention.

[0066] Figure 7 It is a schematic diagram of the overall structure of the installation structure of a vision tester according to another embodiment of the present invention.

[0067] Figure numerals: 1. vision screener; 11. mounting plate; 111. box body; 1111. fixing plate; 1112. baffle; 1113. handle; 2. vision tester; 21. plug-in slot; 22. mounting part; 3. height adjustment assembly; 31. housing; 32. telescopic part; 33. sliding part; 331. connecting part; 4. motor; 5. camera; 6. image processing module; 70. confirmation information module; 71. position adjustment module; 72. vision screening module; 73. prompt display module; 74. vision test module; 75. calculation module; 76. display upload module. DETAILED DESCRIPTION

[0068] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0069] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0070] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0071] In addition, the term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article, unless otherwise specified, generally means that the associated objects before and after are in an "or" relationship.

[0072] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0073] Embodiment 1:

[0074] This embodiment provides a vision screening method, such as Figure 1 As shown, the main process of the method is described as follows.

[0075] The vision screening test device obtains the information of the tester and confirms it. If the confirmation fails, it jumps to the step of obtaining the information of the tester. If the confirmation succeeds, it proceeds to the next step. Among them, the tester refers to the tester who wants to test his own vision. The tester information can be an image or identity data. The acquisition of the tester information can be obtained or manually input by mechanical key triggering, or by virtual key triggering. The mechanical key triggering method can be automatically obtained or manually input after turning on the machine by pressing the mechanical key, or by pressing the corresponding trigger key again after turning on the machine to obtain the tester information; the virtual key triggering method can be obtained or manually input by pressing the relevant virtual trigger button in the interface of the corresponding software. It can also be obtained by directly scanning the QR code. The selection options of the confirmation step, the judgment step and the selection step in this method are bound to the gesture features or voice features to be recognized; after the gesture features or voice features are recognized, the corresponding determination is made to obtain the tester information and confirm the selection options of the screening test steps. It is realized that gesture recognition or voice recognition replaces the mechanical key operation or virtual key operation of the traditional remote control.

[0076] The relative position of the test subject and the vision screening test device is obtained, the difference in relative position is calculated, and the vision screening test device is controlled to move to compensate for the difference in relative position so as to align with the test subject, wherein aligning with the test subject includes the distance between the test subject and the test subject being within a set range. If the difference value continues to exceed the set distance range for more than a set time, the step of repeatedly jumping to the step of obtaining the test subject's information is repeated; if the difference value continues to exceed the set distance range for less than a set time, it is selected whether to cancel the test. If the test is cancelled, the step of jumping to the step of obtaining the test subject's information is performed. If the test is not cancelled, the relative position of the test subject and the vision screening test device is obtained again, the difference in relative position is calculated, and the vision screening test device is controlled to move to compensate for the difference in relative position so as to align with the test subject. The distance can be measured using a distance sensor, an image sensor, or a depth image sensor.

[0077] Take the screening test, then choose whether to take the vision test. If you choose No, return to the step of obtaining the test subject's information. If you choose Yes, proceed to the next step.

[0078] The current tester is prompted to display the test target and target status, wherein the target status is the display form of the test target; after the displayed test target changes, a voice prompt is issued, and the voice prompt is related to the changed test target.

[0079] The vision screening device automatically aligns to the pupil of the test subject, generates screening results in real time, and displays at least one test standard to the pupil. Update the test standard set with multiple test standards, traverse multiple test standards, prompt the test subject to change the target state to adapt to different test standards, verify the adapted target state and test standards, and output the verification results. Manual control or remote control to change the test standard, and / or, identify the gesture features or voice features of the test subject and change the test standard according to the gesture features or voice features. Prompting the test subject to change the target state to adapt to different test standards includes: the target state includes whether to wear frame glasses, the vision screening test equipment has a built-in AI neural network algorithm for identifying the target state image, if the AI ​​neural network algorithm recognizes that the target state is not wearing frame glasses, the vision screening test equipment skips the verification that the target state is wearing frame glasses. The AI ​​neural network algorithm can adopt the CNN convolutional neural network algorithm in the prior art and other neural network algorithms that can achieve the desired purpose.

[0080] After traversing, the tester is prompted to change the test target and repeat the previous step until all test targets are tested. For example, when the tester tests the naked eye vision of the left eye, multiple test standards using sight marks will be traversed. After testing the naked eye of the left eye, the left eye's vision with glasses will be tested. When testing the vision of the left eye with glasses, multiple test standards using sight marks will be traversed; then, when the tester tests the naked eye vision of the right eye, multiple test standards using sight marks will be traversed. After testing the naked eye of the right eye, the right eye's vision with glasses will be tested. When testing the vision of the right eye with glasses, multiple test standards using sight marks will be traversed.

[0081] And, display and upload all verification results. The vision screening test equipment data is connected to the cloud platform and third-party data center.

[0082] This method can achieve a comprehensive assessment of vision status, and the test content includes vision chart test and screening instrument refractive test. The test results can be used to establish a vision data file, or sent to a third-party data platform through an interface for later data analysis, tracking, and assessment of vision status. It can also automatically identify the position of the human eye through an AI neural network algorithm, and then automatically raise and lower the equipment with automatic ranging. It can also realize identity recognition, wearing glasses and eye covering situations through face recognition, and control the device through gesture recognition.

[0083] Embodiment 2:

[0084] This embodiment provides a vision screening terminal, such as Figure 2 As shown, it includes a vision screening test device including a vision screening instrument 1 and a vision tester 2, wherein the vision screening test device is data-connected with an image processing module 6, and the image processing module 6 is data-connected with at least two cameras 5, and the cameras 5 are used to measure the distance between the tester and the vision screening instrument 1. The image processing module 6 contains a central processing unit, and the central processing unit may include a central processing unit such as a CPU or an MPU or a host system built with the CPU or the MPU as the core, including hardware or software. The central processing unit can control the local measurement / traceability component, the remote measurement / traceability component, the remote communication component, etc. through an internal protocol. The internal protocol generally refers to all protocols that realize mutual communication or linking within the same system, including: human-computer interaction protocol, software / hardware (interface) protocol, chip bus (C-Bus) protocol, internal bus (I-Bus) protocol, etc. Some or all of the protocols. With the development of integrated circuit technology, some protocols belonging to the external bus (E-Bus) protocol are also classified as internal protocols after the external bus (E-Bus) is integrated into the chip.

[0085] The communication between the vision screening instrument 1, the vision tester 2 and the image processing module 6 can adopt field bus communication or remote communication. There are various types and structures of remote communication, such as WiFi module, 3G module, 4G module, 5G module, etc., which use the resources of the link network to form a network and provide remote communication or remote control functions. Link network refers to general or special networks such as social public, internal enterprise, and home. Commonly used link networks include wired networks, wireless networks, satellite networks, etc., which can be composed of one of the three, or two of the three or a mixed network of the three. The network interfaces and protocols included in the remote communication components can include: satellite network interface and protocol, wireless network interface and protocol, wired network interface and protocol, etc. Satellite network interface and protocol include satellite positioning interface and protocol and satellite communication interface and protocol, etc.; wireless network interface and protocol include wireless positioning interface and protocol and wireless communication interface and protocol, etc.; wired network interface and protocol include wired positioning interface and protocol and wired communication interface and protocol, etc. Common wireless communication interfaces and protocols include but are not limited to: IoT, NB-IoT, WLAN, GPRS, SMS, etc.; common wired communication interfaces and protocols include but are not limited to: ADSL, LAN, FTTX+LAN, 100BaseTLAN, LXI-A / B / C, etc.

[0086] The vision screening test equipment includes:

[0087] The information confirmation module 70 is used to obtain and confirm the tester's information.

[0088] The position adjustment module 71 is used to obtain the relative position of the test subject and the vision screening test equipment, calculate the difference in relative position, and control the height adjustment component 3 to move the vision screening test equipment to compensate for the difference in relative position to align the test subject, wherein aligning the test subject includes the distance between the test subject and the test subject being within a set range.

[0089] The vision screening module 72 is used to start the vision screening device 1 to perform a screening test.

[0090] The prompt display module 73 is used to prompt the current tester to display the test target and target status, wherein the target status is the display form of the test target.

[0091] The vision test module 74 is used to start the vision tester 2 to display the test standard for vision test, and update the test standard set with multiple test standards, traverse multiple test standards, prompt the tester to change the target state to adapt to different test standards, verify the adapted target state and test standard, and output the verification result.

[0092] The calculation module 75 is used to prompt the tester to change the test target after traversal and repeatedly call the vision inspection module 74 until all test targets are tested. And,

[0093] The display upload module 76 is used to display and upload all verification results.

[0094] The vision screening test equipment data is connected to the cloud platform and third-party data center.

[0095] This terminal can realize comprehensive assessment of vision status, including vision chart test and screening instrument refractive test. The test results can be used to establish a vision data file, or sent to a third-party data platform through an interface for later data analysis, tracking and assessment of vision status. It can also automatically identify the position of the human eye through the AI ​​neural network algorithm, and then automatically raise and lower the equipment with automatic distance measurement. It can also realize identity recognition, wearing glasses and eye covering through face recognition, and control the device through gesture recognition.

[0096] Embodiment three:

[0097] This embodiment provides a vision screening device, such as Figure 3 , including a vision screener 1, a vision tester 2 and a height adjustment component 3, wherein the vision screener 1 is fixedly connected to the vision tester 2, the vision screener 1 and the vision tester 2 are connected by wires, and the vision screener 1 is located above the vision tester 2. The vision screener 1 and the vision tester 2 can be raised and lowered by the height adjustment component 3, so as to adapt to patients of different heights during vision testing. Among them, the vision screener 1 uses a vision screener 1 of the Sowei brand model SW-800. The vision tester 2 is the C901VISIONCHART (liquid crystal vision chart) of Shanghai Mevo Precision Instrument Co., Ltd. The vision tester 2 can provide a stable performance experience and contains a variety of sight marks to meet different test requirements. The vision tester 2 supports Chinese, English and Russian, and can meet the needs of most customers. It includes a low-power LED backlight LCD display screen, and has the functions of red and green cross, Watts four points, cross network, alignment test, stereoscopic vision, astigmatism test, traffic light, contrast test, fixation, color blindness chart, cross double column chart, red and green board, two-color balance, and low vision chart, which meet most of the needs in vision testing and make vision testing more accurate. Two cameras 5 are arranged at one end of the vision tester 2 away from the vision screening instrument 1, and the cameras 5 can be used for shooting.

[0098] When using the vision tester 2 to measure monocular vision, you need to cover one eye and open the other eye, and the vision tester 2 will give a voice prompt, "Please cover your left eye" or "Please cover your right eye". When using the vision tester 2 to measure naked eye or wearing glasses vision, the vision tester 2 will give a voice prompt, "Please take off your glasses" or "Please wear glasses".

[0099] like Figure 3The height adjustment assembly 3 includes a housing 31, a telescopic member 32 and a sliding member 33. One end of the telescopic member 32 is driven and connected to the sliding member 33. The telescopic member 32 can be an electric cylinder with a screw inside. The vision tester 2 and the vision screening instrument 1 are both fixedly connected to the sliding member 33, and one end of the telescopic member 32 is driven and connected to a driving member, wherein the driving member is a motor 4 for the electric cylinder. A T-shaped opening is provided at one end of the housing 31 close to the motor 4, and the T-shaped opening penetrates the housing 31 along the height direction of the housing 31. The sliding member 33 is fixedly connected to the telescopic member 32. A T-shaped sliding plate is welded at one end of the sliding member 33 away from the housing 31, and the sliding plate slides in the T-shaped opening. A mounting plate 11 is welded at one end of the motor 4 close to the housing 31. The mounting plate 11 is rollingly connected to the telescopic member 32 through a bearing. The mounting plate 11 allows the motor 4 to be placed more stably on the housing 31.

[0100] like Figure 4 and Figure 5 In some other embodiments, a connecting member 331 is detachably mounted on one side of the sliding member 33 away from the housing 31 through four bolts, and a T-shaped mounting groove is provided on one end of the connecting member 331 away from the sliding member 33. An L-shaped mounting plate 11 is provided between the vision screening instrument 1 and the vision tester 2. A box body 111 is fixedly connected to the mounting plate 11. Figure 6 and Figure 7 , a fixing plate 1111 is slidably installed on both sides of the vertical mounting plate 11 of the box body 111, and a plurality of springs are arranged between the fixing plate 1111 and the box body 111, and the vision screening instrument 1 is inserted between the two fixing plates 1111. A baffle 1112 is vertically welded on the fixing plate 1111, and the baffle 1112 is vertically mounted on the plate 11, and a handle 1113 is arranged on the side of the baffle 1112 away from the vision screening instrument 1. Inserting the vision screening instrument 1 into the box body 111 facilitates the placement of the vision screening instrument 1, and the fixing plate 1111 and the spring arranged in the box body 111 are conducive to the stable placement of the vision screening instrument 1, avoiding the situation that the box body 111 cannot fix the vision screening instrument 1 well. When the baffle 1112 and the handle 1113 are arranged, when the vision screening instrument 1 needs to be placed in the box body 111, the handle 1113 is manually pulled to give a force to the spring to contract the spring, which can facilitate the staff to place the vision screening instrument 1 in the box body 111.

[0101] like Figure 2 and Figure 4, a U-shaped insertion slot 21 is detachably mounted on the side of the vision tester 2 close to the connecting piece 331 by means of bolts, the mounting plate 11 is inserted into the insertion slot 21, and a threaded hole is provided on the side of the insertion slot 21 away from the vision screening instrument 1, a threaded hole is provided on the side of the mounting plate 11 away from the vision screening instrument 1, and the mounting plate 11 and the insertion slot 21 are also tightened together by means of bolts. A mounting piece 22 is also provided on the vision tester 2, the mounting piece 22 is arranged on the side of the insertion slot 21 away from the vision screening instrument 1, a T-shaped mounting block is provided on the side of the mounting piece 22 close to the connecting piece 331, and the T-shaped mounting block is clamped in the T-shaped mounting slot to realize the assembly of the vision tester 2 and the height adjustment component 3.

[0102] When in use, first install the vision screening instrument 1 in the box body 111, pull the handle 1113 by hand to compress the spring in the box body 111, and release the handle 1113 after the vision screening instrument 1 is placed in the box body 111, so that the vision screening instrument 1 is detachably installed with the mounting plate 11, and then the mounting plate 11 is slidably installed in the plug-in slot 21 and the mounting plate 11 and the plug-in slot 21 are fixed with bolts, so that the vision screening instrument 1 and the vision tester 2 can be installed more firmly, and the vision screening instrument 1 and the vision tester 2 are prevented from being separated during the lifting process. Then the mounting member 22 is slid into the connecting member 331 to realize the assembly of the vision tester 2 and the height adjustment component 3. When in use, the staff controls the motor 4 to drive the telescopic member 32 to rotate. Since the sliding member 33 is threadedly connected to the telescopic member 32, the rotation of the telescopic member 32 will drive the sliding member 33 to rise and fall, and the lifting of the sliding member 33 can drive the vision screening instrument 1 and the vision tester 2 to rise and fall, so that patients with different heights can be used to test their vision. This device can serve as the hardware basis for automatic vision detection.

[0103] The vision screening instrument 1 provides objective test results by means of the principle of eccentric photography, and can quickly produce results in 1 second, which can greatly shorten the time for testing vision. At the same time, it can be compared with the subjective measurement results provided by the vision tester 2, further helping the tester to obtain a more accurate vision condition. When the eccentric photography function of the vision screening instrument 1 is selected, the eccentric infrared lights light up in a certain order to illuminate the human eye. The central camera 5 captures the image sequence and transmits it to the image analysis and processing system for processing. The relevant parameters such as the refraction and astigmatism of the eye being tested, pupil distance, pupil size, strabismus, etc. are calculated, and the results are recorded and a report is generated.

[0104] The vision tester 2 can automatically calculate the size of the sight mark according to the tester, the sight mark unit and the device distance, and randomly generate the sight mark direction, so that the measurement result is more objective and reliable. The image processing module 6 uses two cameras 5 to collect binocular images, and contains an AI neural network algorithm to intelligently detect the eye position in the binocular image and calculate the distance between the tester's eyes and the device. Since the working distances of the vision screening instrument 1 and the vision tester 2 are different, the fixed distance between the vision screening instrument 1 and the tester is 1m, and the working distance between the vision tester 2 and the tester is 2m-7m. The image processing module 6 will detect the distance between the current device and the tester, and will voice prompt the tester to "closer" or "farther" according to different functions and target distances, guiding the tester to reach the appropriate target position. The AI ​​neural network algorithm intelligently detects the tester's eye position, determines whether the device and the tester's eyes are at the same height, and automatically adjusts the height of the device if not. For example, when the tester selects the measurement function of the vision tester 2, the center of the screen of the vision tester 2 is adjusted to the same horizontal plane as the user's eyes. When the tester selects the eccentric photography function of the vision screening instrument 1, the center of the camera 5 of the vision screening instrument 1 is slid down or up to the same level as the user's eyes. The vision tester 2 is equipped with a case management system. Each person needs to create a new case when using it for the first time, including but not limited to swiping a card or scanning a code, and recording the tester's face picture at the same time. After that, when the tester stands in front of the vision tester 2 again, the image processing module 6 will collect the face image, the AI ​​neural network algorithm will recognize the face, and the system will automatically enter the tester's case and start the test. When using the vision tester 2 for monocular vision measurement, it is necessary to cover one eye and open one eye. The AI ​​neural network algorithm will determine whether the left and right eye occlusion of the tester is correct through the collected pictures. If the occlusion is wrong, the voice prompt will be "Please cover the left eye" or "Please cover the right eye". When using the vision tester 2 for naked eye or wearing glasses vision measurement, the AI ​​neural network algorithm can determine whether the tester wears frame glasses through the image transmitted by the image processing module 6. If the wearing glasses state is inconsistent with the current test, the voice prompt will be "Please take off the glasses" or "Please wear glasses". When using the vision tester 2 to measure vision, the tester needs to feedback to the system information such as up, down, left, right, OK, and unclear. Through the AI ​​neural network algorithm, the tester only needs to make up, down, left, right, OK, and unclear gestures or voice, and the intelligent module will automatically recognize the tester's gestures through the gesture image transmitted by the image processing module 6 and record the tester's feedback information, and give a measurement report at the end of the measurement. Alternatively, the intelligent module will automatically recognize the tester's voice through the voice signal transmitted by the microphone connected to the image processing module 6 and record the tester's feedback information, and give a measurement report at the end of the measurement.The present invention combines the existing equipment of vision screening instrument 1, vision tester 2 and image processing module 6, and is equipped with functions such as artificial intelligence recognition and voice interaction with the tester, so that the vision test has an objective and fast reference. At the same time, the addition of artificial intelligence, i.e., AI neural network algorithm, makes the tester's operating experience simpler and more comfortable.

[0105] Embodiment 4:

[0106] The present embodiment provides a vision screening storage medium, which stores a computer program that can be loaded by a processor and execute the method in the embodiment. The computer-readable storage medium includes, for example, various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory, a random access memory, a magnetic disk or an optical disk. Or the internal storage component of the computer can be a storage device such as RAM, ROM, EPROM, EEPROM, FLASH, a magnetic disk, an optical disk, etc. The internal storage component can store parameters, algorithms, etc. that need to be modified and corrected after verification, self-calibration, self-testing, verification, calibration, etc., so that subsequent programs can be called at any time. It can also store data generated when the local program is working normally and data for the local program to transmit / trace the external program.

Claims

1. A vision screening device, characterized in that: The invention comprises a vision screening instrument (1) used as a vision screening test device, a vision tester (2), and a vision screening terminal of the vision tester (2), wherein the vision screening instrument (1) is fixedly connected to the vision tester (2), the vision tester (2) is detachably connected to a height adjustment component (3), the height adjustment component (3) comprises a housing (31), a telescopic member (32), and a sliding member (33), one end of the telescopic member (32) is drivingly connected to the sliding member (33), the sliding member (33) is detachably connected to the vision tester (2), and one end of the telescopic member (32) is provided with a driving member; An opening is provided on a side of the housing (31) close to the vision tester (2), the sliding member (33) is slidably mounted in the opening, and the vision tester (2) and the vision screening device (1) are both fixedly connected to the sliding member (33); A connecting member (331) is detachably mounted on a side of the sliding member (33) away from the housing (31), and a T-shaped mounting groove is provided on an end of the connecting member (331) away from the sliding member (33); An L-shaped mounting plate (11) is provided between the vision screening instrument (1) and the vision tester (2); The mounting plate (11) is fixedly connected to a box body (111), and a fixing plate (1111) is slidably mounted on both sides of the box body (111) perpendicular to the mounting plate (11), and a spring is provided between the fixing plate (1111) and the box body (111), and the vision screening device (1) is plugged between the two fixing plates (1111); The vision tester (2) is provided with a plug-in slot (21) detachably mounted on a side close to the connecting member (331), the mounting plate (11) is plugged into the plug-in slot (21), and a threaded hole is provided on a side of the plug-in slot (21) away from the vision screening device (1), the mounting plate (11) is provided with a threaded hole on a side away from the vision screening device (1), and the mounting plate (11) and the plug-in slot (21) are tightened by bolts; the vision tester (2) is also provided with a mounting member (22), the mounting member (22) is arranged on a side of the plug-in slot (21) away from the vision screening device (1), and a T-shaped mounting block is provided on a side of the mounting member (22) close to the connecting member (331), and the T-shaped mounting block is clamped in the T-shaped mounting slot to realize the assembly of the vision tester (2) and the height adjustment component (3).

2. The vision screening device according to claim 1, characterized in that: A camera (5) is fixedly mounted on one end of the vision tester (2) away from the vision screening device (1).

3. A vision screening method according to any one of claims 1 to 2, characterized in that: The steps include: Obtaining the relative position of the test subject and the vision screening test device, calculating the difference in the relative positions, and controlling the vision screening test device to move to compensate for the difference in the relative positions so as to align the test subject, wherein aligning the test subject includes ensuring that the distance between the test subject and the vision screening test device is within a set range; Activate a vision screener to perform a screening test, the vision screener automatically aligns to the pupil of the test subject, generates a screening result in real time, and displays at least one test standard to the pupil; Manually or remotely control the test standard, and / or recognize the gesture characteristics or voice characteristics of the tester and change the test standard according to the gesture characteristics or voice characteristics; The validation results are calculated based on the test standards corresponding to the screening results and the time they were generated.

4. The method according to claim 3, characterized in that: Before obtaining the relative position of the test subject and the vision screening test device, the method further includes: The vision screening test equipment obtains and confirms the tester's information; Prompt the current tester to display the test target and target status, where the target status refers to the display form of the test target; The prompting of the current tester to display the test target and target status includes: After the displayed test target changes, a voice prompt is issued, wherein the voice prompt is related to the changed test target; After the verification result is calculated, the method includes: Update the test standard set with multiple test standards, traverse multiple test standards, prompt the tester to change the target state to adapt to different test standards, verify the adapted target state and test standards, and output the verification results; After traversal, the tester is prompted to change the test target and repeat the previous step until all test targets are tested; and, Display and upload all verification results.

5. The method according to claim 4, characterized in that The method of calculating the relative position difference and controlling the vision screening test device to move to compensate for the relative position difference so as to align the device with the tester comprises: If the difference value exceeds the set distance range for a period of time, the process will jump to the step of obtaining the tester's information repeatedly; If the difference continues to exceed the set distance range for a period of time, choose whether to cancel the test. If the test is canceled, jump to the step of obtaining the tester's information. If the test is not canceled, re-obtain the relative position of the tester and the vision screening test device, and calculate the difference in relative position.

6. The method according to claim 5, characterized in that Also includes: The step of obtaining the tester information and confirming the selection options of the screening test step are bound to the gesture features or voice features to be recognized; After the gesture feature or the voice feature is identified, the selection options of the step of obtaining the tester information and confirming and the step of screening test are correspondingly determined.

7. The method according to claim 4, characterized in that The prompting of the tester to change the target state to adapt to different test standards includes: The target state includes whether frame glasses are worn. The vision screening test equipment has a built-in AI neural network algorithm for identifying the target state image. If the AI ​​neural network algorithm recognizes that the target state is not wearing frame glasses, the vision screening test equipment skips the verification that the target state is wearing frame glasses.

8. A vision screening terminal applied to the vision screening device as claimed in claim 2, characterized in that: The vision screening test device is data-connected to an image processing module (6), and the image processing module (6) is data-connected to at least two cameras (5), and the cameras (5) are used to measure the distance between the tester and the vision screening device (1); The vision screening test equipment includes: The information confirmation module (70) is used to obtain the tester's information and confirm it; a position adjustment module (71) for obtaining the relative position of the test subject and the vision screening test device, calculating the relative position difference, and controlling the height adjustment component (3) to move the vision screening test device to compensate for the relative position difference so as to align the test subject, wherein aligning the test subject includes ensuring that the distance between the test subject and the test subject is within a set range; A vision screening module (72), used for starting the vision screening device (1) to perform a screening test; A prompting display module (73) is used to prompt the current tester to display the test target and the target state, wherein the target state is the display form of the test target; A vision test module (74) is used to start the vision tester (2) to display the test standard for vision test, update the test standard set with multiple test standards, traverse the multiple test standards, prompt the tester to change the target state to adapt to different test standards, verify the adapted target state and test standard, and output the verification result; A calculation module (75) is used to prompt the tester to change the test target after traversal and repeatedly call the vision inspection module (74) until all test targets are tested; and The display upload module (76) is used to display and upload all verification results.

9. The vision screening terminal according to claim 8, characterized in that: The vision screening test equipment is data-connected to a cloud platform and a third-party data center.

10. A computer-readable storage medium, characterized in that: Applicable to the vision screening device as described in any one of claims 1-2.

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