CN110575130A - remote optometry system and method, and storage medium - Google Patents
remote optometry system and method, and storage medium Download PDFInfo
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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
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- A—HUMAN NECESSITIES
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
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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
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- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H40/00—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
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- G16H40/00—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
- G16H40/60—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices
- G16H40/67—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for remote operation
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H80/00—ICT specially adapted for facilitating communication between medical practitioners or patients, e.g. for collaborative diagnosis, therapy or health monitoring
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Abstract
the invention discloses a remote optometry system and a method and a storage medium, wherein the remote optometry system comprises an intelligent control module, a video chat module, a lens rotation module, a focal power transformation module, a visual target indication module and a visual chart module; the intelligent control module controls the lens rotation module, the focal power transformation module, the sighting mark indicating module and the visual chart module to move; the intelligent control module is connected with the terminal of the detected person through the video chatting module. The invention can transmit the naked eye of a remote examinee to the remote optometry system through the Internet, and performs optometry examination under the cooperation of the examinee, and finally gives a prescription for prescription. The invention is not limited by time and space, can provide 24-hour optometry service, and the examinee can complete self-help optometry examination at any time and any place under the video chat condition.
Description
Technical Field
The invention relates to the technical field of eye vision optics, in particular to a remote optometry system and method and a storage medium.
background
Ametropia refers to a pathological phenomenon that eyes cannot see far or near targets clearly through self-regulation, and seriously affects daily work, life, sports and leisure and entertainment of examinees. Ametropia requires vision correction by wearing glasses or surgery. Wearing glasses, and particularly frame glasses, is the most common and most common means of correction. Before wearing the glasses, the optometry is needed, and whether the reasons for obtaining the unclear vision of the examinees are myopia, hyperopia or astigmatism or both, specific numerical values and eye pupillary distance of the examinees are determined. Then selecting a prescription scheme according to the prescription: contact lenses or frame lenses. The prior optometry mode is that a subject arrives at a hospital or an optometry mechanism, a professional optometrist performs on-site optometry, then an optometry scheme is selected according to an optometry prescription, if frame glasses are selected, a spectacle frame and lenses with different colors which are suitable for face shapes and professional characteristics or personal preferences need to be selected, the spectacle frame and the lenses with different colors are processed and manufactured by a glasses manufacturer and then used by the subject, and if the spectacle frame is uncomfortable or uncomfortable to wear after the spectacle frame is returned, the subject needs to return to the optometry mechanism for adjustment or maintenance. The examinee needs to go and return for 2-4 times in the optometry mode, and sometimes the number of the examinees is even more. The problems of the examinees close to the optometry mechanism and having abundant time are not big, the examinees far away from the optometry mechanism are inconvenient, the round trip process is time-consuming and labor-consuming, and the efficiency is low, so that a remote optometry system supported by a network is needed, the optometry service of the remote optometry system can be received anytime and anywhere, and the optometry inspection before the optometry is finished.
Disclosure of Invention
In view of the above technical problems, an object of the present invention is to provide a remote refraction system and method, and a storage medium, which solve the problem that the refraction of a subject to a hospital or a prescription institution is limited by time and space.
the technical scheme adopted by the invention is as follows:
A remote refraction system comprising: the device comprises an intelligent control module, a video chat module, a lens rotation module, a focal power transformation module, a sighting mark indicating module, a height scaling module and an eye chart module;
the intelligent control module is respectively connected with the lens rotating module, the focal power conversion module, the visual target indicating module, the height scaling module and the visual chart module, and controls the lens rotating module, the focal power conversion module, the visual target indicating module, the height scaling module and the visual chart module to move; the intelligent control module is connected with the video chatting module or embedded into the intelligent control module to be integrated, and the intelligent control module is connected with the terminal of the detected person through the video chatting module;
The lens rotating module is arranged between the video chatting module and the visual chart module and used for clamping the lens; the lens rotating module can rotate, and the rotating shaft of the lens rotating module is superposed with the optical axis of the camera;
The focal power conversion module is used for driving the lens rotating module and the lens with fixed focal power to move back and forth together and grabbing the lens with required degree to be placed into the lens rotating module or taking the lens out of the lens rotating module; the focal power conversion module comprises a front and rear linear driving part and a lens switching part, and the front and rear linear driving part of the focal power conversion module is integrated with a lens rotating bracket of the lens rotating module;
the video chat module is positioned right opposite to the sighting target on the visual chart module; the video chatting module at least comprises a camera, acquires the visual chart of the visual chart module through the camera, and sends the visual chart and the light spots formed on the visual chart by the visual target indicating module and the voice prompt information of the intelligent control module to a detected person and receives the feedback information of the detected person;
The visual target indicating module is used for emitting laser and forming light spots for indicating visual targets on the visual chart module;
The visual chart module is provided with a visual chart which accords with the regulation, and the visual chart at least comprises visual targets and relevant parameters thereof.
furthermore, the intelligent control module comprises a computer, an interface circuit, a microcontroller and a voice recognition circuit, wherein the voice recognition circuit is connected with the computer, the computer is connected with the microcontroller through the interface circuit, and the microcontroller is respectively connected with the lens rotation module, the focal power conversion module, the sighting target indication module, the height scaling module and the visual chart module.
Further, the lens rotation module includes lens roating seat, lens centre gripping shell fragment, rotary driving mechanism, lens have or not switch and lens zero-position switch, rotary driving mechanism can drive the lens roating seat just reverse rotation, lens centre gripping shell fragment is used for the centre gripping lens, the lens roating seat includes the supporting seat and is located the lens runing rest on the supporting seat, lens centre gripping shell fragment, lens have or not switch and lens zero-position switch all locate on the lens runing rest, the lens has or not switch and adopts micro-gap switch, the lens has or not switch and is used for surveying the lens and has or not, lens zero-position switch adopts micro-gap switch, lens zero-position switch is used for surveying the motion position of lens roating seat.
furthermore, the sighting mark indicating module comprises a laser indicator and a two-dimensional rotary table, the two-dimensional rotary table drives the laser indicator to do two-dimensional scanning movement, and the two-dimensional scanning movement can sequentially send out laser to indicate all icons in the front area of the visual chart module.
Furthermore, the focal power conversion module comprises a lens box, a three-dimensional manipulator and a front and back linear driving mechanism for fixing the focal power lens, wherein the three-dimensional manipulator is used for grabbing the lens with required power in the lens box and placing the lens into the lens rotating seat or taking out the lens from the lens rotating seat and placing the lens into the corresponding position of the lens in the lens box; the fixed focal power lens front-back linear driving mechanism is used for driving the fixed focal power lens to move linearly back and forth.
furthermore, the video chat module comprises a camera, a microphone and a loudspeaker, the camera is used for shooting the visual chart, the chat software is installed on the video chat module, the plane of the visual chart is perpendicular to the optical axis of the camera of the video chat module, and the 1.0 or 4.0 visual target of the visual chart is as high as the optical axis of the camera.
the visual chart module is used for zooming in or out of the height of the visual chart, the optical axis of the visual chart module is overlapped with the optical axis of a camera of the video chat module, the height zooming direction of the visual chart module is consistent with the height or length direction of the visual chart on the visual chart module, and the visual chart module is connected with the intelligent control module.
Further, the height zooming module comprises a biconvex or plano-convex cylindrical lens and a linear driving mechanism, the height zooming module is positioned between the visual chart module and the lens rotating module, and the linear driving mechanism drives the cylindrical lens to do reciprocating linear motion so as to enlarge or reduce the height of the visual chart.
A remote refraction method comprising:
Establishing connection with a terminal of a detected person through a video chat module;
the intelligent control module sends picture information containing the height and width of the test sighting mark and voice information prompting the examinee to carry out the matching examination to the examinee terminal through the video chatting module, and simultaneously receives feedback information of the examinee terminal;
Respectively judging the eyesight of the left eye and the right eye; sending visual acuity checking prompt information to a terminal of a person to be examined, sending a laser indication sighting mark through a sighting mark indication module, sending sighting mark inquiry information corresponding to the indication sighting mark to the terminal of the person to be examined through a video chat module when each sighting mark on the visual acuity chart module is indicated, storing preset sighting mark answer information corresponding to the sighting mark inquiry information in advance, and receiving sighting mark answer information fed back by the terminal of the person to be examined;
Judging whether to continue vision judgment or terminate based on the received sighting target answer information and preset sighting target answer information, and acquiring the vision of the examinee when the judgment is terminated;
Determining a corrective lens power; calculating the corrected lens power according to the vision of the examinee when the examinee is stopped, grabbing lenses corresponding to the corrected lens power and placing the lenses into a lens rotating module, respectively carrying out vision judgment on the left eye and the right eye, and judging whether the corrected lens power is proper or not based on the received sighting mark answering information and preset sighting mark answering information; when the corrected lens power is judged to be improper, the corrected lens power is adjusted, and the corresponding lens after the corrected lens power is adjusted is grabbed until the corrected lens power is judged to be proper based on the received sighting mark answering information and the preset sighting mark answering information;
Performing astigmatism inspection; according to the identification definition of the astigmatism lens of the examinee on the visual chart, the astigmatism lens with a certain degree is placed into the rotating lens rotating module through the focal power conversion module, the identification definition of the astigmatism lens of the examinee to the astigmatism inspection icon after the astigmatism lens is added is obtained, and then the degree of the astigmatism lens is adjusted according to the identification definition of the astigmatism lens of the examinee after the astigmatism lens is added until the astigmatism lens degree corresponding to the examinee is detected.
A computer storage medium having stored thereon a computer program which, when executed by a processor, implements the remote optometry method.
Compared with the prior art, the invention has the beneficial effects that:
the invention is based on the video chat technology of the Internet, through the artificial intelligence technology, send the different place optometry technology and service to the person being examined on the networking equipment such as cell-phone, panel computer, desk-top computer, etc., the person being examined can carry on the optometry in any place that has network connection through the smart mobile phone, personal computer or panel computer, needn't go to the optometry organization personally; the optometry service can be provided for the examinees in 24 hours, the limitation of work and rest time or holidays is avoided, time and energy are saved, the optometry efficiency is improved, and the optometry cost is reduced.
Drawings
FIG. 1 is a schematic diagram of the working principle of the remote optometry system of the present invention;
FIG. 2 is a schematic diagram of a remote optometry system according to the present invention;
FIG. 3 is a schematic diagram of the control principle of the intelligent control module of the remote optometry system according to the present invention;
FIG. 4 is a schematic flow chart of a remote optometry method according to the present invention;
FIG. 5 is a schematic diagram of the operation of the video chat module of the remote optometry system of the present invention;
FIG. 6 is a schematic view of the structure of the lens rotation module of the remote vision system of the present invention;
fig. 7 is a schematic structural diagram of a height scaling module of the remote prescription system of the present invention.
Wherein, 1, an intelligent control module; 2. a video chat module; 3. a lens rotating module; 4. a visual target indication module; 5. a height scaling module; 6. an eye chart module; 7. a front and back linear driving part and a lens switching part of the focal power conversion module; 8. a zero position switch of the lens; 9. a lens rotating bracket; 10. whether the lens has a switch or not; 11. a supporting seat; 12. a rotation driving mechanism; 13. the lens clamping elastic sheet; 14. a cylindrical lens; 15. a stepping motor; 16. a speed reducer; 17 drive the nut.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
Example (b):
Referring to fig. 1-7, the working principle of the remote optometry system is: based on the internet-based video chat technology, the remote optometry technology and service are transmitted to the networking equipment such as a mobile phone, a tablet personal computer and a desktop computer of the examinee through the artificial intelligence technology, the method can also be understood as 'transmitting the naked eye of the examinee to the remote optometry system and receiving the inspection service of the optometry system', the examinee can perform optometry inspection at any time and any place selected by the examinee, and the optometry process is completed without the limitation of time and space. In particular, the method comprises the following steps of,
As shown in fig. 1, an intelligent control module 1 is used as a control center of a remote optometry system, is directly connected with a video chat module 2, is connected with a microcontroller through an interface circuit in the module, and is then respectively connected with other modules except the video chat module 2 through the microcontroller;
The video chat module 2 is positioned at a position opposite to the visual chart module 6 with a moderate distance, one end of the video chat module is connected with the intelligent control module 1 or embedded into the intelligent control module to be integrated, and the other end of the video chat module is connected with the examinee through the Internet;
The lens rotating module 3 is positioned right in front of the camera of the video chatting module 2 and close to the video chatting module 2, and a rotating shaft of the lens rotating module is superposed with an optical axis of the camera and is connected with the microcontroller of the intelligent control module 1 through a wire;
the lens switching part of the focal power conversion module is positioned at the position on the side surface of the lens rotating module 3, which is convenient for switching the lens and does not influence the imaging of the camera of the video chat module 2, the front and back linear driving parts of the focal power conversion module are integrated with the lens rotating bracket 9 of the lens rotating module 3, and the two parts are respectively connected with the microcontroller of the intelligent control module 1 through wires;
The sighting target indicating module 4 is positioned opposite to the visual chart module 6 and near the lens rotating module 3, does not influence the movement position of the lens rotating module 3, and is connected with the microcontroller of the intelligent control module 1 through a lead;
the height scaling module 5 is positioned between the video chatting module 2 and the visual chart module 6 and close to the video chatting module 2, the optical axis of the height scaling module coincides with the optical axis of a camera of the video chatting module 2, the height scaling direction is consistent with the height (or length) direction of the visual chart on the visual chart module 6, and the height scaling module is connected with the microcontroller of the intelligent control module 1 through a wire;
the visual chart module 6 is positioned right in front of the video chat module 2, the distance meets the national standard requirement, the visual chart plane is perpendicular to the camera optical axis of the video chat module 2, and the 1.0 or 4.0 visual target is as high as the camera optical axis and is connected with the microcontroller of the intelligent control module 1 through a wire.
as shown in fig. 3, the intelligent control module 1 is mainly composed of a computer, an interface circuit, a microcontroller and a voice recognition circuit. The computer is the center of the intelligent control module 1 and is provided with a window operating system, a serial port, a network port and a USB port; the interface circuit is responsible for data communication between the microcontroller and the computer; the voice recognition circuit is responsible for recognizing the voice meaning of the detected person; the microcontroller is a control chip of the intelligent control module 1, directly controls the movement of the lens rotation module 3, the focal power transformation module, the sighting mark indication module 4, the height scaling module 5 and the visual chart module 6 through wires, and sends out voice prompt through a loudspeaker of the video chat module 2.
the video chatting module 2 mainly comprises a camera, a microphone, a loudspeaker and chatting software, is used for remotely connecting a remote examinee, transmitting a video image formed by the visual chart and the indicating light spots and a voice prompt sent by the intelligent control module 1, and simultaneously transmitting a video image and sound of the examinee; the camera is provided with a manual focusing lens, and an operator can adjust the focal length according to the distance between the camera and the visual chart; the microphone is integrated inside the camera; the loudspeaker needs to be specially configured; the chatting software is common chatting software and is installed on the computer of the intelligent control module 1. The video chat module 2 can provide the examinee with the image of the visual chart superimposed with the indicating light spot sent by the visual target indicating module 4 and the voice prompt sent by the intelligent control module 1, and simultaneously receive the image and the sound sent by the examinee from different places and the screenshot picture about the visual chart on the mobile phone screen sent by the examinee.
as shown in fig. 6, the lens rotation module 3 mainly includes a lens rotation base, a lens holding elastic sheet 13, a rotation driving mechanism 12, a lens presence/absence switch 10, and a lens zero position switch. The lens rotating seat adopts an elastic sheet to clamp the lens, so that the lens is prevented from falling; the rotation driving mechanism 12 can drive the lens rotating base to rotate and then drive the lens to rotate together, and the rotation angle can be up tothe lens presence or absence switch 10 is a general microswitch, and the switch states are different when the lens is present or absent, so that the presence or absence of the lens is detected; the lens zero position switch is a universal microswitch, and the switch closing position is the movement starting position of the lens rotating seat; the lens rotating seat is driven to rotate clockwise or anticlockwise according to a control instruction sent by the intelligent control module 1, and the angle is continuously adjustable.
The technical principle of the power conversion module is as follows: the focal power conversion module comprises a front and back linear driving part and a lens switching part (two parts in total), the front and back linear driving part can drive the lens rotating module 3 and a lens with fixed focal power clamped on the lens rotating module to move linearly back and forth together, the object distance is changed through linear movement, the image distance is correspondingly changed, and therefore the size of an image obtained by a camera on the video chatting module 2 is changed; the lens switching part can grab the lenses with different degrees by a mechanical arm and place the lenses into the lens bracket on the lens rotating module 3, and can take the lenses out of the lens bracket on the lens rotating module 3 by the mechanical arm and place the lenses into corresponding positions in the lens box; the roles of the two parts are the same (changing the image size), with the difference that: the front and rear linear driving sections can continuously change the image size, and the lens switching section cannot continuously change the image size because the difference in the minimum number of degrees between the lenses is 25 degrees, the size of the image after imaging cannot be continuous.
Specifically, the focal power conversion module mainly comprises a lens box, a three-dimensional manipulator, a fixed focal power lens and a front and back linear driving mechanism. The lenses in the lens box comprise 50-300 pieces of near-sighted lenses, far-sighted lenses, corresponding astigmatic lenses and the like, and a lens presence switch 10 is arranged below each piece of lens, so that the presence or absence of the lens can be sensed; the three-dimensional manipulator can move in three dimensions, can grab the lens with specified degrees from the lens box and place the lens into the lens rotating seat, and can take out the lens from the lens rotating seat and place the lens into the corresponding position in the lens box, the movement range is 1000 multiplied by 800 multiplied by 500mm, and the movement speed is adjustable. In order to reduce the manufacturing difficulty, the three-dimensional manipulator can be simplified into a combination of one-dimensional motions in three directions, and the function of grabbing the lens is the same as that of the previous lens. The front and back linear driving mechanism of the fixed focal power lens comprises a driving motor and a linear driving device, and focal power of the imaging system can be continuously changed.
The sighting mark indicating module 4 mainly comprises a laser indicator and a two-dimensional rotary table, and the laser indicator is driven by the two-dimensional rotary table to do two-dimensional scanning movement. The laser color selects red, green or other colors, the light-emitting power is less than 5mW, the diameter of a light spot is 3-5 mm, 4 working positions of the visual target indicating module are used as reference, the two-dimensional rotary table is driven by two stepping motors 15 with mutually vertical rotating shafts, the transverse scanning range of the motor with the rotating shaft vertical to the ground is 500mm, the longitudinal scanning range of the motor with the rotating shaft parallel to the ground is 1500mm, the scanning precision is not more than 3mm, the visual target can stay at any position in the scanning range, the control instruction sent out according to the intelligent control module 1 can send out indicating laser, the visual target or patterns at different positions in the visual target range are pointed, and the visual target or patterns can be.
The height zooming module 5 mainly comprises a biconvex or plano-convex cylindrical lens 14 and a linear driving mechanism, the focal length of the lens is 5-5000 mm, the clear aperture is 5-250 mm, the motion range is 0-500 m, the amplitude magnification is-25%, and the specific position is determined according to the selected focal length of the lens and is approximately positioned within two times of the focal length and beyond one time of the focal length. The amplitude of the visual chart can be amplified or reduced through the reciprocating linear motion of the cylindrical lens 14 so as to adapt to the special condition that visual targets with the same height and width display inequally on mobile phone display screens with different height and width proportions, and meet the optometry requirement that the height and the width of the same visual target must be equal. Adjusting the mobile phone screen shot according to the measurement result from the examinee or the mobile phone screen shot sent by the examinee.
The visual chart module 6 is provided with a visual chart which accords with the regulation, and the visual chart at least comprises visual targets and relevant parameters thereof. The related parameters refer to the identification scales of the sighting marks, such as vision 1.5 and the like. The visual chart can be composed of a visual chart and an illuminating light source, wherein the height and the width of the visual chart, the height and the width of each visual target, the background brightness and the contrast conform to national standards. The system has the checking functions of myopia, long distance, astigmatism, over-correction, under-correction and the like, the background brightness and the sighting target contrast conform to the national standard, and the distance from the camera of the video chatting module 2 is moderate.
referring to fig. 2, the following mainly describes the installation process and connection manner of each module of the remote optometry system.
Firstly, selecting a plane wall to install and fix the visual chart module 6, and adjusting the spatial posture of the visual chart module to ensure that the visual target plane of the visual chart is vertical to the ground, and the visual targets in the same row are basically parallel to the ground.
and secondly, placing the intelligent control module 1 at a position with a 5m opposite distance from the visual chart module 6, and enabling the computer screen to face the visual chart module 6.
thirdly, fixing the video chat module 2 on a bracket between the visual chart module 6 and the intelligent control module 1; if the camera of the video chat module 2 can be fixed on the computer screen of the intelligent control module 1, the camera is directly fixed on the computer screen, the height of the visual chart module 6 is adjusted to make the 1.0 or 4.0 visual target height be basically the same as the optical axis of the camera of the video chat module 2, and then the position of the camera is adjusted to make the optical axis be perpendicular to the visual target plane of the visual chart module 6.
and fourthly, installing a lens rotating module 3 right in front of the video chatting module 2 or on a camera of the video chatting module 2 to enable a rotating shaft of the lens rotating module to coincide with the optical axis.
Fifthly, a height zooming module 5 is arranged between the lens rotating module 3 and the visual chart module 6, so that the plane of the plano-convex cylindrical lens 14 is perpendicular to the optical axis of the camera, and the optical axis passes through the geometric center of the light inlet plane.
And sixthly, facing the visual chart module 6, installing a visual target index module at the right side of the video chatting module 2 and the lens rotating module 3, and adjusting the spatial posture of the visual target index module to enable the scanning range of the visual target index module to cover the whole visual chart plane area.
Eighthly, facing the visual chart module 6, installing a focal power conversion module on the left sides of the video chatting module 2 and the lens rotating module 3, wherein the focal power conversion module comprises a front linear driving part and a rear linear driving part of the focal power conversion module and a lens switching part 7, and the front linear driving part and the rear linear driving part of the focal power conversion module are integrated with a lens rotating bracket 9 of the lens rotating module; the three-dimensional manipulator can grab the lens from the lens box and take out the lens from the lens rotating module 3 without obstacles, and put the lens back to the original position in the lens box, or drive the fixed focal power lens to move linearly back and forth.
and ninthly, after all the modules are installed in place, connecting signal lines and power lines among all the modules and a loudspeaker of the video chat module 2.
Referring to fig. 3, fig. 3 shows a control principle of the intelligent control module 1, in which a computer (e.g., a CPU including a microcontroller, such as a laptop, an all-in-one computer, a desktop computer, or a tablet computer) is used as a basis of the intelligent control module 1, and the microcontroller is connected to the computer through an interface circuit and receives an instruction from the computer for control; the microcontroller is respectively connected with the focal power conversion module, the lens rotation module 3, the sighting mark indicating module 4, the height scaling module 5 and the visual chart module 6 through leads to directly control the movement of the modules; the voice recognition circuit is directly connected with the computer and used for recognizing the actual meaning of the speech of the detected person returned by the video chat module 2, and the voice recognition circuit can adopt the prior art, such as a voice recognition chip, an artificial intelligence module and the like. The answer corresponding to the position indicated by the visual target indication module 4 is pre-stored in the computer, and then whether the answer of the examinee is correct or not is judged through a program; the video chat module 2 comprises a camera, a loudspeaker, a microphone and the like. The video chat module 2 is directly connected with or integrated into a computer.
referring to fig. 5, the hardware of the video chat module 2 includes a camera, a microphone and a speaker, wherein the microphone is integrated in the camera. These pieces of hardware are connected directly to the computer. The video chatting link with the remote examinees is established under the support of video chatting software and the Internet, the video chatting module 2 transmits images synthesized by the visual chart of the visual chart module 6 and the indicating light spots of the visual target indicating module 4 and prompt sounds sent by the intelligent control module 1 to the examinee equipment, and simultaneously receives the images, the images and the sound information transmitted by the examinees to create an immersive optometry.
Referring to fig. 6, the structural schematic diagram of the lens rotation module 3 is shown, the lens rotation module 3 includes a lens rotation base, a lens clamping elastic sheet 13, a rotation driving mechanism 12, a lens presence or absence switch 10, and a lens zero position switch 8, and the lens rotation module 3 is designed to meet the requirement of astigmatism. The lens rotating bracket 9 of the lens rotating module 3 is cylindrical and can be fixed on a camera or independently fixed; the lens rotating seat comprises a supporting seat 11 and a lens rotating support 9 positioned on the supporting seat, and three clamping elastic sheets are arranged on the inner ring of the lens rotating support 9 and can clamp the lens to rotate together; the outer ring of the lens rotating bracket 9 is fixed with a rotating driving mechanism 12, and the lens clamping elastic sheet 13 is driven to rotate by a gear. The intelligent control module 1 sends a control signal to rotate the driving mechanism 12, and then drives the lens clamping elastic sheet 13 and the lens to rotate together, the rotation direction can be positive and negative, and the rotation angle is controllable. A lens presence switch 10 is arranged at the lower left part and used for detecting the presence of a lens; a zero position switch of the lens is arranged right above the lens and used for indicating the rotation zero position of the lens.
fig. 7 is a schematic diagram of the principle structure of the height zoom module 5, a plano-convex cylindrical lens 14 with a clear aperture larger than the imaging aperture of the camera is fixed on a driving nut 17, the driving nut 17 is sleeved on a threaded output shaft of a reducer 16 of a stepping motor 15, the driving nut 17 and the stepping motor 15 are installed on the same base, the stepping motor 15 can only rotate and can not move, the driving nut 17 can only do linear motion and can not rotate, the intelligent control module 1 sends out a control signal to drive the stepping motor 15 to rotate, and then drives the driving nut 17 to do linear motion, so that the cylindrical lens 14 moves back and forth along the optical axis direction, and the amplitude of the visual chart is enlarged or reduced.
Referring to fig. 4, the flow of the practical application of the optometry method of the present invention is as follows:
after a video chat is established between a remote examinee and a remote optometry system, an eye chart image appears on an examinee chat device screen, an examinee end image appears on a remote optometry device screen, registration is firstly carried out, related information such as the name, age, gender, occupation and the like of the examinee is input into the system, and then optometry is started.
Firstly, a control program sends out a prompt tone for 'please measure the height and the width of the sighting target', a detected person sends back a mobile phone screen shot to the remote optometry system, or the mobile phone screen shot is answered through a voice after being measured through a ruler, and the system automatically controls the height scaling module 5 to move back and forth according to the difference between the height and the width of a picture or a sound, so that the height scaling module and the height scaling module are equal to each other.
Secondly, the control program sends out a prompting sound of 'checking naked eye vision', the examinee is prompted to take off the eyes and start checking after the left eye is covered by the glasses, the sighting mark indicating module 4 sends out laser and indicates sighting marks from top to bottom, and the examinee answers when inquiring the direction of the gap of the examinee by indicating one sighting mark each time; the system judges whether to continue downward identification or stop according to the answer accuracy of the examinee, stops the examination after reaching the eyesight limit, records the current eyesight of the examinee, releases the left eye to cover the right eye, and repeats the steps.
Thirdly, the control program judges whether the detected person is near-sighted or far-sighted, calculates the degree of the correction lens according to the vision, commands the focal power conversion module to pick the lens with corresponding degree and place the lens in the lens rotation module 3, then sends out the prompt sound of 'please accept the optometry examination at the vertical visual chart screen and the distance x cm', and carries out the vision examination according to the naked eye optometry program according to the sequence of first right eye and then left eye or first left eye and then right eye, the lens degree is higher and reduced, and the lens degree is lower and increased until being suitable.
fourthly, entering an astigmatism checking link, sending an astigmatism icon watching prompt tone according to the sequence of the right eye and the left eye, inquiring the identification condition of the examinee, if the lines are different and clear, the astigmatism exists, controlling a program to command a focal power conversion module to grab an astigmatism lens with smaller power, putting a lens rotation module 3 into the lens rotation module, rotating the lens to the vertical direction of the line with the clearest vision of the examinee, inquiring the definition condition of the lines of the examinee, increasing the astigmatism power through the lens rotation module 3 when the lines are not clear enough, reducing the astigmatism power through the lens rotation module 3 when the lines are too clear until the astigmatism lens is moderate, finally rotating the astigmatism lens positively and negatively, inquiring the definition change condition of the lines, and finding the clearest astigmatism
and fifthly, guiding the examinee to watch red and green icons on the visual chart according to the sequence of the right eye and the left eye, and rechecking the under-correction and over-correction conditions of the matched lenses, wherein for the short-sighted examinee, if the red clearly shows that the lens power is lower, the green clearly shows that the lens power is higher, and for the long-sighted examinee, if the red clearly shows that the lens power is higher, the green clearly shows that the lens power is lower.
Through the steps, the fitting parameters of the examinee can be determined, and the optometry prescription is given finally.
the invention also provides a computer storage medium on which a computer program is stored, in which the method of the invention, if implemented in the form of software functional units and sold or used as a stand-alone product, can be stored. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer storage medium and used by a processor to implement the steps of the embodiments of the method. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer storage medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer storage media may include content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer storage media that does not include electrical carrier signals and telecommunications signals as subject to legislation and patent practice.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present invention.
Claims (10)
1. A remote refraction system comprising: the system comprises an intelligent control module, a video chat module, a lens rotation module, a focal power transformation module, a sighting target indication module and an eye chart module;
The intelligent control module is respectively connected with the lens rotating module, the focal power conversion module, the visual target indicating module, the height scaling module and the visual chart module, and controls the lens rotating module, the focal power conversion module, the visual target indicating module and the visual chart module to move; the intelligent control module is connected with the video chatting module or embedded into the intelligent control module to be integrated, and the intelligent control module is connected with the terminal of the detected person through the video chatting module;
The lens rotating module is arranged between the video chatting module and the visual chart module and used for clamping the lens; the lens rotating module can rotate, and the rotating shaft of the lens rotating module is superposed with the optical axis of the camera of the video chatting module;
the focal power conversion module is used for driving the lens rotating module and the lens with fixed focal power to move back and forth together and grabbing the lens with required degree to be placed into the lens rotating module or taking the lens out of the lens rotating module; the focal power conversion module comprises a front and rear linear driving part and a lens switching part, and the front and rear linear driving part of the focal power conversion module is integrated with a lens rotating bracket of the lens rotating module;
The video chat module is positioned right opposite to the sighting target on the visual chart module; the video chatting module at least comprises a camera, acquires the visual chart of the visual chart module through the camera, and sends the visual chart and the light spots formed on the visual chart by the visual target indicating module and the voice prompt information of the intelligent control module to a detected person and receives the feedback information of the detected person;
The visual target indicating module is used for emitting laser, and the laser can form a light spot for indicating the visual target on the visual chart module;
The visual chart module is provided with a visual chart which accords with national regulations, and the visual chart at least comprises visual targets and relevant parameters thereof.
2. The remote optometry system of claim 1, wherein the intelligent control module comprises a computer, an interface circuit, a microcontroller, and a voice recognition circuit, the voice recognition circuit is connected to the computer, the computer is connected to the microcontroller through the interface circuit, and the microcontroller is connected to the lens rotation module, the focal power transformation module, the visual target indication module, the height scaling module, and the eye chart module, respectively.
3. The remote optometry system of claim 1, wherein the lens rotation module comprises a lens rotation base, a lens clamping elastic sheet, a rotation driving mechanism, a lens presence or absence switch, and a lens zero-position switch, the rotation driving mechanism can drive the lens rotation base to rotate forward and backward, the lens clamping elastic sheet is used for clamping a lens, the lens rotation base comprises a support base and a lens rotation support located on the support base, the lens clamping elastic sheet, the lens presence or absence switch, and the lens zero-position switch are all arranged on the lens rotation support, the lens presence or absence switch is a micro switch, the lens presence or absence switch is used for detecting the presence or absence of the lens, the lens zero-position switch is a micro switch, and the lens zero-position switch is used for detecting the movement position of the lens rotation base.
4. the remote optometry system of claim 1, wherein the optotype indication module comprises a laser pointer and a two-dimensional turntable, the two-dimensional turntable drives the laser pointer to perform a two-dimensional scanning motion, and the two-dimensional scanning motion can sequentially emit laser light to indicate all icons in a front area of the optometry module.
5. The remote refraction system according to claim 1, wherein the power conversion module comprises a lens box, a three-dimensional manipulator and a fixed power lens front-back linear driving mechanism, wherein the three-dimensional manipulator is used for grabbing a lens with a required power in the lens box and placing the lens into the lens rotating seat or taking the lens out of the lens rotating seat and placing the lens into a corresponding position of the lens in the lens box; the fixed focal power lens front-back linear driving mechanism is used for driving the fixed focal power lens to move linearly back and forth.
6. The remote optometry system of claim 1, wherein the video chat module comprises a camera, a microphone and a speaker for photographing the visual chart, and chat software is installed on the video chat module, the visual chart plane is perpendicular to the camera optical axis of the video chat module, and the 1.0 or 4.0 visual target of the visual chart is at the same height as the camera optical axis.
7. the remote optometry system of claim 1, further comprising a height scaling module, wherein the height scaling module is used for enlarging or reducing the height of the visual chart, an optical axis of the height scaling module coincides with an optical axis of a camera of the video chat module, a height scaling direction of the height scaling module is consistent with the height or length direction of the visual chart on the visual chart module, and the height scaling module is connected with the intelligent control module.
8. the remote refraction system according to claim 7, wherein the height scaling module comprises a bi-convex or plano-convex cylindrical lens, and a linear driving mechanism, the height scaling module being located between the eye chart module and the lens rotation module, the linear driving mechanism driving the cylindrical lens to reciprocate linearly to enlarge or reduce the height of the eye chart.
9. A method of remote refraction, comprising:
establishing connection with a terminal of a detected person through a video chat module;
the intelligent control module sends picture information containing the height and width of the test sighting mark and voice information prompting the examinee to carry out the matching examination to the examinee terminal through the video chatting module, and simultaneously receives feedback information of the examinee terminal;
Respectively judging the eyesight of the left eye and the right eye; sending visual acuity checking prompt information to a terminal of a person to be examined, sending a laser indication sighting mark through a sighting mark indication module, sending sighting mark inquiry information corresponding to the indication sighting mark to the terminal of the person to be examined through a video chat module when each sighting mark on the visual acuity chart module is indicated, storing preset sighting mark answer information corresponding to the sighting mark inquiry information in advance, and receiving sighting mark answer information fed back by the terminal of the person to be examined;
Judging whether to continue vision judgment or terminate based on the received sighting target answer information and preset sighting target answer information, and acquiring the vision of the examinee when the judgment is terminated;
Determining a corrective lens power; calculating the corrected lens power according to the vision of the examinee when the examinee is stopped, grabbing lenses corresponding to the corrected lens power and placing the lenses into a lens rotating module, respectively carrying out vision judgment on the left eye and the right eye, and judging whether the corrected lens power is proper or not based on the received sighting mark answering information and preset sighting mark answering information; when the corrected lens power is judged to be improper, the corrected lens power is adjusted, and the corresponding lens after the corrected lens power is adjusted is grabbed until the corrected lens power is judged to be proper based on the received sighting mark answering information and the preset sighting mark answering information;
Performing astigmatism inspection; according to the identification definition of the astigmatism lens of the examinee on the visual chart, the astigmatism lens with a certain degree is placed into the rotating lens rotating module through the focal power conversion module, the identification definition of the astigmatism lens of the examinee to the astigmatism inspection icon after the astigmatism lens is added is obtained, and then the degree of the astigmatism lens is adjusted according to the identification definition of the astigmatism lens of the examinee after the astigmatism lens is added until the astigmatism lens degree corresponding to the examinee is detected.
10. A computer storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the remote refraction method of claim 9.
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