Intelligent far vision examination equipment

Abstract

The invention provides intelligent far vision examination equipment. The intelligent far vision examination equipment comprises a liftable seat; the baffle assembly comprises a first lifting device, a telescopic device, a light shielding plate and two light shielding devices, one end of the first lifting device is installed at the top of the liftable seat, the telescopic device is vertically connected to the other end of the first lifting device, and the telescopic device is driven by the first lifting device to do lifting motion. According to the intelligent far vision examination equipment provided by the invention, a medical worker firstly measures the distance between a shading plate and a visual chart through the distance measurement module, then the liftable seat is moved according to the measured distance and the distance required by measurement, and the telescopic device stretches out and draws back according to data of the distance measurement module; by means of identity recognition of the device, the conditions of modern testing and the like can be avoided, meanwhile, control over the distance from the eyes to the visual chart is more accurate, and the accuracy of the testing result is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to an intelligent farsightedness testing device. Background Art

[0002] Vision refers to the ability of the retina to distinguish images. Traditional vision testing methods (such as retinoscopy, eye chart test, etc.) generally require professional technicians (such as doctors, nurses, etc.) to perform. In addition, traditional vision testing has high requirements for the venue. For example, the eye chart test needs to be conducted in a wide and well-lit place, and the person being tested needs to stand at a standard distance (such as 5 meters) to receive the vision test.

[0003] During the actual measurement process, the tester only carries the inspection form for the test. Firstly, it is difficult for medical staff to accurately verify the identities of different testers, and sometimes they ask others to take the test. At the same time, the traditional test requires the tester to stand on the test line for inspection. Due to the standing posture or other reasons, there is an error between the actual distance between the tester's eyes and the vision chart and the standard distance, which affects the accuracy and authenticity of the strength measurement.

[0004] How to provide a long-distance vision examination device and a testing method that can intelligently test people and test distances more accurately is a technical problem that technical personnel in this field urgently need to solve. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an intelligent farsightedness testing device to solve at least one of the above-mentioned technical problems.

[0006] In order to solve the above technical problems, the present invention provides an intelligent farsightedness examination equipment, comprising: a liftable seat; a baffle assembly, the baffle assembly comprising a first lifting device, a telescopic device, a shading plate and two shading devices, one end of the first lifting device is installed on the top of the liftable seat, the telescopic device is connected to the other end of the first lifting device, the telescopic device is driven by the first lifting device to perform lifting and lowering movements, the telescopic device is located directly above the liftable seat, the shading plate is connected to the telescopic device, the shading plate is driven by the telescopic device to perform horizontal movements, two sight holes are arranged on the shading plate, the two shading devices are respectively installed on the two sight holes, and a nose groove is arranged at the bottom of the shading plate; an identity recognition module, the identity recognition module is arranged on the liftable seat and the baffle assembly, and is used to identify the identity of the patient; a distance measurement module, the distance measurement module is installed on the shading plate, and is used to measure the distance between the shading plate and the eye chart.

[0007] Optionally, the liftable chair includes: a base; a lifting column, one end of which is installed on the top of the base; a seat, which is installed on the other end of the lifting column; a backrest, which is installed on one side of the seat; and two armrests, which are respectively installed on both sides of the seat adjacent to the backrest.

[0008] Optionally, the shading device includes: a cylindrical rolling shutter shell, which is installed on a side of the shading plate away from the backrest, the cylindrical rolling shutter shell is located directly above one of the sight holes, and a slot is provided along the cylindrical body of the cylindrical rolling shutter shell on the side facing downward; a micro motor, which is installed adjacent to one end of the cylindrical rolling shutter shell, and the output end of the micro motor extends into the cylindrical rolling shutter shell toward the cylindrical rolling shutter shell; a rolling shutter shaft, one end of the rolling shutter shaft is connected to the output end of the micro motor; a light-blocking roller shutter, the width of the light-blocking roller shutter is matched with the slot on the cylindrical roller shutter shell, one end of the light-blocking roller shutter is connected to the rolling shutter shaft, and the other end of the light-blocking roller shutter passes through the slot on the cylindrical roller shutter shell and is connected to a limiting rod.

[0009] Optionally, the identity recognition module includes: a card reader, which is installed on one of the armrests; and a camera, which is installed on the sunshade, with the lens of the camera facing the backrest.

[0010] Optionally, the distance measurement module includes: a distance measuring sensor, and the distance measuring sensor is installed on a side of the shading plate away from the backrest.

[0011] Optionally, the intelligent farsightedness inspection device also includes: a touch display, which is mounted on the other armrest and faces the backrest; a speaker, which is mounted on the top of the visor; and a microphone, which is mounted on the bottom of the visor.

[0012] Optionally, the intelligent farsightedness inspection equipment further includes: a light sensor, which is mounted on a side of the shading plate away from the backrest, and the light sensor is arranged adjacent to the ranging sensor; and an LED dimming lamp, which is arranged in the inspection room.

[0013] Optionally, the first lifting device includes a first electric telescopic frame, which is vertically installed on the top of the backrest; the telescopic device includes a second electric telescopic frame, which is horizontally installed on the top of the first electric telescopic frame, and a connecting frame is obliquely installed at one end of the second electric telescopic frame away from the first electric telescopic frame.

[0014] Optionally, the intelligent long-range vision inspection equipment also includes: a controller, the controller is installed on the shading plate, the controller is respectively communicated with the lifting column, the card reader, the camera, the ranging sensor, the touch display, the speaker, the microphone, the light sensor, the LED dimming lamp, the first electric telescopic frame, the second electric telescopic frame and the two micro motors, and the controller is communicated with an external terminal device; the controller includes a memory and a processor, the memory stores a computer program, and the computer program can implement the following steps when executed by the processor: obtain the distance between the shading plate and the vision chart measured by the distance sensor, and determine whether the distance is less than a distance threshold; if the distance is not less than the distance threshold, the processor controls the speaker to issue a reminder; if the distance is less than the distance threshold, the processor controls the second electric telescopic frame to extend to a set distance.

[0015] Optionally, the light source intensity in the detection room measured by the light sensor is obtained to determine whether the light source intensity is within the light intensity range; if the light source intensity is not within the light intensity range, the processor controls the LED dimming lamp to adjust to within the light intensity range.

[0016] Beneficial effects:

[0017] The intelligent long-distance vision examination device provided by the present invention, before use, the medical staff first measures the distance between the visor and the eye chart through the distance measurement module, and then moves the position of the liftable seat according to the measured distance and the distance required for measurement. After the approximate position of the liftable seat is moved, the telescopic device is further telescoped according to the data of the distance measurement module to move the visor to a position where the distance from the eye chart is more accurate to the distance. After the position of the visor from the eye chart is adjusted, the patient sits on the liftable seat, and the identity is identified by the identity recognition module. The liftable seat can adjust the height according to the patient's height to make it suitable for the patient. In response to testers of different heights, when the tester sits on the lifting seat, the first lifting device can be adjusted according to the position of his head, and the height of the visor can be adjusted to the position of the tester's head, so that the two sight holes are located in front of the tester's eyes. Then, the eyes are placed on the two sight holes, and the nose is in the nasal groove to start the vision test. When testing different eyes, the two shading devices respectively block the two sight holes according to the test requirements to complete the monocular test of the tester; the identity recognition of the device can avoid situations such as proxy testing, and at the same time, the distance from the eyes to the vision chart can be controlled more accurately to ensure the accuracy of the test results.

[0018] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the elevation structure provided for an embodiment of the present application;

[0021] Figure 2 A schematic diagram of the internal structure of the shading device provided in an embodiment of the present application.

[0022] Reference numerals:

[0023] 1. Liftable seat;

[0024] 11. Base; 12. Lifting column; 13. Seat; 14. Backrest; 15. Armrest;

[0025] 2. Baffle assembly;

[0026] 21. First lifting device; 211. First electric telescopic frame; 22. Telescopic device; 221. Second electric telescopic frame; 222. Connecting frame; 23. Sunshade; 24. Sunshade device; 241. Cylindrical roller blind housing; 242. Micro motor; 243. Roller blind shaft; 244. Shading roller blind; 245. Limit rod; 25. Sight hole; 26. Nose groove;

[0027] 3. Card reader;

[0028] 4. Camera. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of this specification to clearly and completely describe the technical solutions in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0030] Meanwhile, in the embodiments of this specification, when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a central component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time.

[0031] See also Figure 1-2 The embodiment provides an intelligent telescopic vision examination device, which includes a liftable seat 1; a baffle assembly 2, the baffle assembly 2 includes a first lifting device 21, a telescopic device 22, a shading plate 23 and two shading devices 24, one end of the first lifting device 21 is installed on the top of the liftable seat 1, the telescopic device 22 is connected to the other end of the first lifting device 21, the telescopic device 22 is driven by the first lifting device 21 to do lifting movement, the telescopic device 22 is located directly above the liftable seat 1, the shading plate 23 is connected to the telescopic device 22, the shading plate 23 is driven by the telescopic device 22 to do horizontal movement, two sight holes 25 are provided on the shading plate 23, the two shading devices 24 are respectively installed on the two sight holes 25, and a nose groove 26 is provided at the bottom of the shading plate 23; an identity recognition module, the identity recognition module is arranged on the liftable seat 1 and the baffle assembly 2, and is used to identify the patient's identity; a distance measurement module, the distance measurement module is installed on the shading plate 23, and is used to measure the distance between the shading plate 23 and the eye chart.

[0032] Specifically, before use, the medical staff first measures the distance between the visor 23 and the eye chart through the distance measurement module, and then moves the position of the liftable seat 1 according to the measured distance and the distance required for measurement. After the approximate position of the liftable seat 1 is moved, the telescopic device 22 is telescoped according to the data of the distance measurement module to move the visor 23 to a position where the distance from the eye chart is more accurate to the distance. After the position of the visor 23 from the eye chart is adjusted, the patient sits on the liftable seat 1 and the identity is identified through the identity recognition module. The liftable seat can adjust its height according to the patient's height to adapt to the measurement of patients of different heights. When the tester sits on the lifting chair, the first lifting device 21 can be adjusted according to the position of his head, and the height of the sunshade 23 can be adjusted to the position of the tester's head, so that the two sight holes 25 are located in front of the tester's eyes, and then the eyes are placed on the two sight holes 25, the nose is in the nasal groove, and the vision test is started. When testing different eyes, the two sunshade devices 24 respectively block the two sight holes 25 according to the test requirements to complete the monocular test of the tester. The identity recognition of the device can avoid situations such as proxy testing. At the same time, the distance from the eye to the vision chart can be controlled more accurately to ensure the accuracy of the test results.

[0033] In some possible embodiments, the liftable chair 1 includes: a base 11; a lifting column 12, one end of which is installed on the top of the base 11; a seat 13, which is installed on the other end of the lifting column 12; a backrest 14, which is installed on one side of the seat 13; and two armrests 15, which are respectively installed on both sides of the seat 13 adjacent to the backrest 14.

[0034] Specifically, the base 11 supports the entire liftable chair 1, the lifting column 12 controls the lifting of the seat 13, and the two armrests 15 and the backrest 14 provided on the seat 13 increase the comfort of the device.

[0035] In some possible implementations, the identification module includes: a card reader 3, which is mounted on an armrest 15; a camera 4, which is mounted on a sunshade 23, with the lens of the camera 4 facing the backrest 14. The distance measurement module includes: a distance sensor, which is mounted on a side of the sunshade 23 away from the backrest 14.

[0036] Specifically, the card reader 3 and the camera 4 perform dual recognition and confirmation on the identity of the tester. First, the tester sticks the ID card or hospital patient card on the card reader 3 to identify the identity of the tester. Then, the identity of the tester is confirmed again through the camera 4 to avoid situations such as helping to test. The ranging sensor is set on the shading plate 23, and the tester's eyes are attached to the shading plate 23. Therefore, the distance between the shading plate 23 and the eye chart is the distance between the tester's eyes and the eye chart. The accuracy of the test is ensured by the ranging sensor.

[0037] In some possible embodiments, the intelligent farsightedness inspection device further includes: a touch display, which is mounted on another armrest 15 and faces the backrest 14 ; a speaker, which is mounted on the top of the visor 23 ; and a microphone, which is mounted on the bottom of the visor 23 .

[0038] Specifically, the touch display faces the patient sitting on the liftable chair 1. The patient can watch and learn how to test through the touch display and understand the standards and processes in the test to ensure that the tester can complete the test more smoothly. The speaker can convey the medical staff's prompts on the one hand and prompt the test steps on the other hand. When conducting the test, the tester needs to answer the direction of the pattern pointed by the medical staff, and the microphone can increase the tester's volume.

[0039] In some possible implementations, the intelligent farsightedness inspection equipment further includes: a light sensor, which is mounted on a side of the shading plate 23 away from the backrest 14, and the light sensor is arranged adjacent to the distance measuring sensor; and an LED dimming light, which is arranged in the inspection room.

[0040] Specifically, the vision test needs to ensure that the light source intensity at the test location is within a certain range. The photoelectric sensor is adjacent to the ranging sensor. The sensing direction of the light sensor is the direction of the tester's line of sight. The light sensor can detect the intensity of the light source in the direction of the tester's eyes, and control the LED dimming light according to the detection results to ensure the accuracy of the vision test.

[0041] In some possible embodiments, the first lifting device 21 includes a first electric telescopic frame 211, which is vertically installed on the top of the backrest 14; the telescopic device 22 includes a second electric telescopic frame 221, which is horizontally installed on the top of the first electric telescopic frame 211, and a connecting frame 222 is obliquely installed on one end of the second electric telescopic frame 221 away from the first electric telescopic frame 211.

[0042] Specifically, the first electric telescopic frame 211 controls the height of the sun shading plate 23, and the second electric telescopic frame 221 controls the distance between the sun shading plate 23 and the eye chart. The control of the two electric telescopic frames is simpler and more convenient. There is a certain inclination between the connecting frame 222 and the second electric telescopic frame 221, so that a certain distance is reserved in the vertical direction between the sun shading plate 23 and the second electric telescopic frame 221 to prevent the patient's head from pressing against the second electric telescopic frame 221 when the patient's eyes are against the sun shading plate 23.

[0043] In some possible embodiments, the shading device 24 includes: a cylindrical roller shutter shell 241, which is installed on a side of the shading plate 23 away from the backrest 14, the cylindrical roller shutter shell 241 is located directly above a sight hole 25, and a slot is opened along the cylindrical body of the cylindrical roller shutter shell 241 on the side facing downward; a micro motor 242, which is installed adjacent to one end of the cylindrical roller shutter shell 241, and the output end of the micro motor 242 extends into the cylindrical roller shutter shell 241 toward the cylindrical roller shutter shell 241; a roller shutter shaft 243, one end of the roller shutter shaft 243 is connected to the output end of the micro motor 242; a shading roller shutter 244, the width of the shading roller shutter 244 is adapted to the slot on the cylindrical roller shutter shell 241, one end of the shading roller shutter 244 is connected to the roller shutter shaft 243, and the other end of the shading roller shutter 244 passes through the slot on the cylindrical roller shutter shell 241 and is connected to a limiting rod 245.

[0044] Specifically, the micro motor 242 can control the rolling curtain shaft 243 to rotate, and when the rolling curtain shaft 243 rotates, the light-shielding rolling curtain 244 can be rolled up or extended to block the sight hole 25. When the light-shielding rolling curtain 244 is rolled up, it is rolled into the cylindrical rolling curtain housing 241 through the notch on the cylindrical rolling curtain housing 241, and at the same time, the limit rod 245 at the bottom of the light-shielding rolling curtain 244 prevents the light-shielding rolling curtain 244 from being completely rolled into the cylindrical rolling curtain housing 241. When in use, two micro motors 242 can be controlled to control the blocking of different eyes.

[0045] In some possible embodiments, the intelligent farsightedness inspection equipment further includes: a controller, which is mounted on the shading plate 23, and is respectively connected to the lifting column 12, the card reader 3, the camera 4, the distance measuring sensor, the touch display, the speaker, the light sensor, the LED dimming lamp, the first electric telescopic frame 211, the second electric telescopic frame 221 and the two micro motors 242 for communication, and is connected to the external terminal device for communication; the controller includes a memory and a processor, and a computer program is stored in the memory. When the computer program is executed by the processor, the following steps can be implemented: obtaining the distance between the shading plate 23 and the eye chart measured by the distance sensor, and determining whether the distance is less than the distance threshold; if the distance is not less than the distance threshold, the processor controls the speaker to issue a reminder; if the distance is less than the distance threshold, the processor controls the second electric telescopic frame 221 to extend to the set distance.

[0046] Specifically, the controller can be controlled through the touch display, and then the tester can control the lifting column 12 and the first electric telescopic frame 211 through the touch display, control the height of the liftable seat 1 and the height of the sunshade 23 to make them suitable for their own use, and the card reader 3, camera 4, speaker and two micro motors 242 are all connected through the controller and the terminal device communication. When the tester uses the card reader 3 to swipe the card, the medical staff can see the personal information of the tester through the terminal device, and judge the facial condition of the tester through the camera 4, whether the tester is wearing glasses or whether there are secretions in the eyes, etc., and prompt and ask the patient through the speaker. When conducting a vision test, the medical staff can ask the tester through the speaker when pointing to the graphic on the vision chart, and at the same time, the two sight holes 25 are blocked respectively by controlling the two micro motors 242, thereby completing the test of different eyes. Before the test, when the position of the device as a whole is debugged, the medical staff sets the standard distance between the distance sensor and the eye chart through the terminal device according to the test distance required by the eye chart used, and the distance threshold is the retractable range of the second electric telescopic frame 221. When the distance between the sun visor 23 and the eye chart is much greater than or much less than the distance threshold, the speaker gives a prompt, and the medical staff moves the liftable seat 1. When the sun visor 23 is within the distance threshold from the eye chart, the speaker stops the prompt, and the controller controls the second electric telescopic frame 221 to retract so that the distance between the sun visor 23 and the eye chart reaches the initially set distance.

[0047] In some possible implementations, the light source intensity in the detection room measured by the light sensor is obtained to determine whether the light source intensity is within the light intensity range; if the light source intensity is not within the light intensity range, the processor controls the LED dimming lamp to adjust to within the light intensity range.

[0048] Specifically, during the vision test, the lighting in the examination environment needs to be uniform and fixed, generally 400 to 1000 lux. Medical staff set the light intensity according to the specific vision chart. The light sensor senses the light intensity of the examination environment. When the light intensity is not within the set intensity, the LED dimming light is controlled to adjust to ensure that the test environment meets the requirements.

[0049] Finally, it should be noted that the above embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention. They should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

[0050] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. An intelligent long-distance vision testing device, characterized in that: The intelligent long-distance vision testing device comprises: Liftable seat (1); A baffle assembly (2), the baffle assembly (2) comprising a first lifting device (21), a telescopic device (22), a shading plate (23) and two shading devices (24), one end of the first lifting device (21) is mounted on the top of the liftable seat (1), the telescopic device (22) is connected to the other end of the first lifting device (21), the telescopic device (22) is driven by the first lifting device (21) to perform lifting movement, the telescopic device (22) is located directly above the liftable seat (1), the shading plate (23) is connected to the telescopic device (22), the shading plate (23) is driven by the telescopic device (22) to perform horizontal movement, the shading plate (23) is provided with two sight holes (25), the two shading devices (24) are respectively mounted on the two sight holes (25), and a nose groove (26) is provided at the bottom of the shading plate (23); an identity recognition module, the identity recognition module being arranged on the liftable seat (1) and the baffle assembly (2) and being used for identifying the identity of the patient; A distance measuring module is installed on the shading plate (23) and is used to measure the distance between the shading plate (23) and the eye chart.

2. The intelligent long-distance vision testing device according to claim 1, characterized in that: The liftable seat (1) comprises: Base (11); A lifting column (12), one end of which is mounted on the top of the base (11); A seat (13), wherein the seat (13) is mounted on the other end of the lifting column (12); A backrest (14), wherein the backrest (14) is installed on one side of the seat (13); Two armrests (15), the two armrests (15) are respectively installed on two sides of the seat (13) adjacent to the backrest (14).

3. The intelligent long-distance vision testing device according to claim 2, characterized in that: The shading device (24) comprises: A cylindrical rolling shutter shell (241), the cylindrical rolling shutter shell (241) being mounted on a side of the sunshade (23) away from the backrest (14), the cylindrical rolling shutter shell (241) being located directly above one of the sight holes (25), and a notch being provided along the cylindrical body of the cylindrical rolling shutter shell (241) on a side facing downward; A micro motor (242), the micro motor (242) being installed adjacent to one end of the cylindrical rolling shutter housing (241), the output end of the micro motor (242) extending into the cylindrical rolling shutter housing (241) toward the cylindrical rolling shutter housing (241); A rolling curtain shaft (243), one end of which is connected to the output end of the micro motor (242); A light-blocking roller blind (244), wherein the width of the light-blocking roller blind (244) is matched with the notch on the cylindrical roller blind shell (241), one end of the light-blocking roller blind (244) is connected to the roller blind shaft (243), and the other end of the light-blocking roller blind (244) passes through the notch on the cylindrical roller blind shell (241) and is connected to a limiting rod (245).

4. The intelligent long-distance vision testing device according to claim 3, characterized in that: The identity recognition module comprises: A card reader (3), wherein the card reader (3) is installed on one of the handrails (15); A camera (4), wherein the camera (4) is mounted on the sunshade (23), and the lens of the camera (4) faces the backrest (14).

5. The intelligent long-distance vision testing device according to claim 4, characterized in that: The distance measurement module comprises: A distance measuring sensor is installed on a side of the shading plate (23) away from the backrest (14).

6. The intelligent long-distance vision testing device according to claim 5, characterized in that: The intelligent long-distance vision testing device also includes: A touch display, the touch display being mounted on the other armrest (15), the touch display facing the backrest (14); A speaker, the speaker being mounted on the top of the sunshade (23); A microphone is installed at the bottom of the shading plate (23).

7. The intelligent long-distance vision testing device according to claim 6, characterized in that: The intelligent long-distance vision testing device also includes: A light sensor, the light sensor being mounted on a side of the shading plate (23) away from the backrest (14), the light sensor being arranged adjacent to the distance measuring sensor; LED dimming lamp, wherein the LED dimming lamp is arranged in the inspection room.

8. The intelligent long-distance vision testing device according to claim 7, characterized in that: The first lifting device (21) comprises a first electric telescopic frame (211), and the first electric telescopic frame (211) is vertically installed on the top of the backrest (14); The telescopic device (22) comprises a second electric telescopic frame (221), wherein the second electric telescopic frame (221) is horizontally mounted on the top of the first electric telescopic frame (211), and a connecting frame (222) is obliquely mounted on one end of the second electric telescopic frame (221) away from the first electric telescopic frame (211).

9. The intelligent long-distance vision testing device according to claim 8, characterized in that: The intelligent long-distance vision testing device also includes: A controller, wherein the controller is mounted on the shading plate (23), and the controller is respectively connected to the lifting column (12), the card reader (3), the camera (4), the distance sensor, the touch display, the speaker, the microphone, the light sensor, the LED dimming lamp, the first electric telescopic frame (211), the second electric telescopic frame (221) and the two micro motors (242), and the controller is connected to the external terminal device; The controller includes a memory and a processor. The memory stores a computer program. When the computer program is executed by the processor, the following steps can be implemented: Acquiring the distance between the shading plate (23) and the vision chart measured by the distance sensor, and determining whether the distance is less than a distance threshold; If the distance is not less than the distance threshold, the processor controls the speaker to issue a reminder; If the distance is less than the distance threshold, the processor controls the second electric telescopic frame (221) to be telescoped to a set distance.

10. The intelligent long-distance vision testing device according to claim 9, characterized in that: Obtaining the light source intensity in the detection chamber measured by the light sensor, and determining whether the light source intensity is within a light intensity range; If the light source intensity is not within the light intensity range, the processor controls the LED dimming lamp to be adjusted within the light intensity range.

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