Blind guide stick with visual enhancement function for amblyopia groups and application method thereof

Abstract

The invention relates to a blind guiding stick with a vision enhancing function for amblyopia groups and an application method thereof, the blind guiding stick comprises a long-strip-shaped stick body, a handle is formed at the upper end of the stick body, and the blind guiding stick further comprises a data processing unit and a wearable display screen; the handle is provided with an extending section extending forwards, and the extending section is provided with a shooting camera for shooting the road condition downwards. A scanning unit used for conducting three-dimensional scanning on the foot landing area is arranged on the lower middle portion of the stick body and located in the shooting area of the shooting camera, and the foot landing area comprises the left side area and the right side area of the scanning unit. The data processing unit receives a shooting picture of the shooting camera and a scanning image of the scanning unit; by applying the mode and the method, the amblyopia group can be helped to effectively deal with various road conditions through vision, the device is simple in structure and convenient to use and operate, the auxiliary tactile stick with pertinence is provided for the amblyopia group, the travel convenience of the amblyopia group can be effectively improved, and the blank in the industry is filled.

Description

Technical Field

[0001] The present invention relates to the technical field of blind-guiding equipment for the visually impaired, and more particularly to a blind-guiding stick with enhanced vision function for the visually impaired and an application method thereof. Background Art

[0002] The amblyopic group is a relatively special group. Unlike the blind, the amblyopic group itself is not without vision, but its vision is relatively poorer than that of normal people. At the same time, there is also the problem of lack of stereoscopic vision. Traditional blind sticks rely entirely on the sense of touch on the hands to assist in judging spatial orientation. Some new blind sticks with radar scanning the road surface and voice reminders are currently on the market and are more suitable for the blind. However, due to the visual peculiarities of the amblyopic group, this type of guide stick based on touch and / or hearing can only provide limited help to the amblyopic group. At present, the industry is still in a blank stage for guide sticks for the amblyopic group. There is an urgent need for a low-cost guide stick with enhanced vision function for the amblyopic group. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a guide stick with enhanced visual function for use by the amblyopic group, and also provide an application method of the guide stick with enhanced visual function for use by the amblyopic group, in view of the above-mentioned defects of the prior art.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A guide stick with enhanced vision function for use by visually impaired groups is constructed, comprising a long strip stick body, a handle formed on the upper end of the stick body, and a data processing unit and a wearable display screen; the handle is provided with an extension section extending forward, and a camera for photographing road conditions downward is provided on the extension section; a scanning unit for performing stereoscopic scanning of a foothold area is provided at the middle and lower part of the stick body, and the scanning unit is within the photographing area of ​​the camera, and the foothold area includes the left and right side areas of the scanning unit; the data processing unit receives a photographing picture of the camera and a scanned image of the scanning unit, and has a first display mode, a second display mode and a third display mode; when in the first display mode, the photographing picture is sent to the display screen for display; when in the second display mode, the scanned image is sent to the display screen for display; when in the third display mode, the foothold area image in the photographed image is eliminated, and the scanned image is embedded in the eliminated photographed image to form a composite image, and the composite image is sent to the display screen for display; the handle is provided with a controller for controlling the camera, the scanning unit and the data processing unit.

[0006] The blind cane with enhanced visual function for the use of the amblyopia group according to the present invention, wherein the scanning unit includes a lampshade, and the lampshade is rotatable relative to the cane body; the lower surface of the lampshade is an arc surface and is provided with a laser scanner and area indicators surrounding the laser scanner; the light spot area formed on the ground after the light emitted by the area indicators is concentrated by the lampshade is the landing area.

[0007] The blind cane with enhanced visual function for the use of the amblyopia group according to the present invention, wherein a rotating shaft is inserted through the cane body, and sector-shaped protective frames are longitudinally rotatably connected to both ends of the rotating shaft, and the lampshade is fixedly connected to the lower edge of the sector shape of the protective frame; a gyroscope for detecting the tilting angle in the front-back direction and a floating compensation unit are provided on the cane body, and the floating compensation unit drives any one of the protective frames to deflect by a set angle around the rotating shaft according to the detection data of the gyroscope for compensation, so as to maintain the stability of the position of the lampshade.

[0008] The blind cane with enhanced visual function for the use of the amblyopia group according to the present invention, wherein the floating compensation unit includes a data processing unit and a drive control unit, the data processing unit is used for analyzing and processing the detection data of the gyroscope and generating the deflection angle of the protective frame; the drive control unit is used for controlling the deflection of the protective frame according to the deflection angle of the protective frame.

[0009] The blind cane with enhanced visual function for the use of the amblyopia group according to the present invention, wherein the drive control unit includes an arc-shaped rack fixed on the protective frame and a micro drive motor fixed on the cane body, and a drive gear meshing with the arc-shaped rack is arranged at the movable end of the micro drive motor, and the arc-shaped rack is coaxially arranged with the protective frame.

[0010] The blind cane with enhanced visual function for the use of the amblyopia group according to the present invention, wherein the data processing unit is further used for receiving the angle setting value input by the controller and controlling the operation of the micro drive motor according to the angle setting value to set the initial deflection angle of the protective frame.

[0011] The blind cane with enhanced visual function for the use of the amblyopia group according to the present invention, wherein anti-slip pads are further arranged at one ends of the two protective frames close to the handle, and the two protective frames and the handle can form three support points for supporting the cane body in the horizontal state.

[0012] A method for applying a blind cane with enhanced visual function for the use of the amblyopia group, which is applied to the blind cane with enhanced visual function for the use of the amblyopia group as described above, wherein the method includes:

[0013] According to the actual road conditions, operate the controller to switch the display mode:

[0014] When in the first display mode, the captured image is sent to the display screen for display;

[0015] When in the second display mode, the scanned image is sent to the display screen for display;

[0016] When in the third display mode, the image of the landing area in the captured image is removed, and the scanned image is embedded into the captured image after removal to form a composite image, and the composite image is sent to the display screen for display.

[0017] The beneficial effects of the present invention are as follows: According to the actual road conditions, the operation controller is used to switch the display mode, which can be specifically divided into:

[0018] In the case of a relatively flat and / or familiar road surface scenario, it can be switched to the first display mode. When in the first display mode, the captured image is sent to the display screen for display. The visually impaired user can quickly and efficiently walk by observing the display screen at a close distance to master the road conditions;

[0019] For an uneven but relatively familiar road surface, it can be switched to the second display mode or the third display mode. When in the second display mode, the scanned image is sent to the display screen for display;

[0020] For an uneven and / or unfamiliar road surface, it is switched to the third display mode. When in the third display mode, the image of the landing area in the captured image is removed, and the scanned image is embedded into the captured image after removal to form a composite image, and the composite image is sent to the display screen for display, helping the visually impaired user to quickly master the road conditions and accurately identify the three-dimensional shape of the landing area;

[0021] Applying the above methods can help the visually impaired group effectively cope with various road conditions through vision, and the device structure is simple and the use operation is convenient. It provides a very targeted auxiliary blind stick for the visually impaired group, which can effectively improve the travel convenience of the visually impaired group and fill this gap in the industry; in addition, the area that the scanning unit needs to scan is only the landing area, which has a small load on the scanning unit, reduces power consumption while reducing the setting cost of the scanning unit, and thus is beneficial to reducing the overall cost and extending the single-use duration. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will further illustrate the present invention in conjunction with the drawings and embodiments. The drawings in the following description are only partial embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts:

[0023] Figure 1It is a side view of a guide stick with enhanced visual function for the amblyopia group according to a preferred embodiment of the present invention;

[0024] Figure 2 It is a principle block diagram of a guide stick with enhanced visual function for the amblyopia group according to a preferred embodiment of the present invention;

[0025] Figure 3 It is another side view of a guide stick with enhanced visual function for the amblyopia group according to a preferred embodiment of the present invention;

[0026] Figure 4 It is a schematic structural diagram of a scanning unit of a guide stick with enhanced visual function for the amblyopia group according to a preferred embodiment of the present invention. Detailed implementation manners

[0027] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] A guide stick with enhanced visual function for the amblyopia group according to a preferred embodiment of the present invention, as Figure 1 shown, and referring to Figures 2 - 4 simultaneously, includes a long strip-shaped stick body 1. A handle 10 is formed at the upper end of the stick body 1. It further includes a data processing unit 11 and a wearable display screen 2 (the wearing structure can adopt existing structures such as clips, etc., and is not limited thereto); an extension section 12 extending forward is provided on the handle 10, and a shooting camera 13 for shooting the road surface condition downward is provided on the extension section 12; a scanning unit 3 for performing three-dimensional scanning on the landing area is provided in the middle and lower part of the stick body 1. The scanning unit 3 is within the shooting area of the shooting camera 13. The landing area includes the areas on the left and right sides of the scanning unit 3; the data processing unit 11 receives the shooting pictures of the shooting camera 13 and the scanning images of the scanning unit 3, and has a first display mode, a second display mode and a third display mode;

[0029] When in the first display mode, the shooting pictures are sent to the display screen 2 for display; when in the second display mode, the scanning images are sent to the display screen 2 for display; when in the third display mode, the images of the landing area in the shooting images are removed, and the scanning images are embedded into the shooting images after removal to form a composite image, and the composite image is sent to the display screen 2 for display; a controller 14 for controlling the shooting camera 13, the scanning unit 3 and the data processing unit 11 is provided on the handle 10;

[0030] According to the actual road conditions, the operation controller 14 is operated to switch the display mode, which can be specifically divided into:

[0031] In the case of a relatively flat and / or familiar road surface scenario, it can be switched to the first display mode. When in the first display mode, the captured image is sent to the display screen for display. The visually impaired user can quickly and efficiently walk by observing the display screen at a close distance to master the road conditions;

[0032] For an uneven but relatively familiar road surface, it can be switched to the second display mode or the third display mode. When in the second display mode, the scanned image is sent to the display screen for display;

[0033] For an uneven and / or unfamiliar road surface, it is switched to the third display mode. When in the third display mode, the image of the landing area in the captured image is removed, and the scanned image is embedded into the captured image after removal to form a composite image. The composite image is sent to the display screen for display, helping the visually impaired user quickly master the road conditions and accurately identify the three-dimensional shape of the landing area;

[0034] Applying the above methods can help the visually impaired group effectively cope with various road conditions through vision. Moreover, the device has a simple structure and is convenient to use and operate, providing a very targeted auxiliary blind stick for the visually impaired group, which can effectively improve the travel convenience of the visually impaired group and fill this gap in the industry;

[0035] In addition, the area that the scanning unit needs to scan is only the landing area, which places a small load on the scanning unit, reduces power consumption while reducing the setting cost of the scanning unit, and thus helps to reduce the overall cost and extend the single-use duration.

[0036] Preferably, the scanning unit 3 includes a lamp shade 30, and the lamp shade 30 can rotate relative to the cane body 1; the lower surface of the lamp shade 30 is an arc surface and is provided with a laser scanning head 31 and area indicating lights 32 surrounding the laser scanning head; the light spot area formed on the ground after the light emitted by the area indicating lights 32 is concentrated by the lamp shade 30 is the landing area; with a simple structure and convenient for adjustment, the area indicating lights 32 also have the functions of lighting and forming the landing area.

[0037] Preferably, a rotating shaft 15 is inserted through the cane body 1, and both ends of the rotating shaft 15 are longitudinally rotatably connected with fan-shaped protective frames 16. The lamp shade 30 is fixedly connected to the lower edge of the fan shape of the protective frame 16; a gyroscope 17 for detecting the tilt angle in the front and rear directions of the cane body 1 and a floating compensation unit 4 are arranged on the cane body 1. The floating compensation unit 4 drives any one of the protective frames 16 to deflect by a set angle around the rotating shaft according to the detection data of the gyroscope 17 for compensation to maintain the stability of the position of the lamp shade 30;

[0038] With this floating design, the purpose is to facilitate the disassembly and assembly of the scanning unit 3, and while providing protection for the lamp cover 30, the laser scanning head 31, and the area indicator light 32, it also significantly reduces the interference caused by the front-back swing of the cane body to the scanning of the laser scanning head 31, improves the stability of the acquired scanning image, and thus ensures the stability of the image displayed on the display screen 2 to meet the need for continuously acquiring scanning images during walking; the scanning unit 3 can be electrically connected to the data processing unit and other components through internal wiring in the cane body 1; a power supply for supplying power to the above components can be configured inside the cane body 1.

[0039] Preferably, the floating compensation unit 4 includes a data processing unit 11 and a drive control unit 41. The data processing unit 11 is used to analyze and process the detection data of the gyroscope 17 and generate the deflection angle of the protective frame 16; the drive control unit 41 is used to control the deflection of the protective frame according to the deflection angle of the protective frame.

[0040] A preferred structure of the drive control unit 41 can adopt: including an arc-shaped rack 410 fixed on the protective frame 16 and a micro drive motor 411 fixed on the cane body 1. A drive gear 412 meshing with the arc-shaped rack 410 is arranged at the movable end of the micro drive motor 411, and the arc-shaped rack 410 is coaxially arranged with the protective frame 16; through this structural method, the lamp cover 30 can be kept at the same inclination angle during the movement of the cane body 1, which is convenient for observing the three-dimensional distribution of the landing area from the display screen.

[0041] Preferably, the data processing unit 11 is also used to receive the angle set value input by the controller, and control the operation of the micro drive motor according to the angle set value to set the initial deflection angle of the protective frame, that is, the initial angle (i.e., the above-mentioned inclination angle) of the lamp cover 30 can be set to adapt to different slope road surfaces.

[0042] Preferably, anti-slip pads 160 are also arranged at one ends of the two protective frames 16 close to the handle 10. The two protective frames 16 and the handle 10 can form three support points for supporting the cane body 1 in the horizontal state; the purpose of adopting this design is that the cane body 1 can be placed horizontally and supported by the anti-slip pads 160 and the handle to form a temporary stool for people to rest.

[0043] An application method of a blind cane with enhanced visual function for the visually impaired group is applied to the blind cane with enhanced visual function for the visually impaired group as described above. Among them, the method includes:

[0044] According to the actual road conditions, operate the controller to switch the display mode:

[0045] When in the first display mode, send the captured image to the display screen for display;

[0046] When in the second display mode, the scanned image is sent to the display screen for display;

[0047] When in the third display mode, the foothold area image in the captured image is removed, and the scanned image is embedded into the captured image after the removal to form a composite image, and the composite image is sent to the display screen for display;

[0048] The method of the present application can help the visually impaired group to effectively cope with various road conditions through vision, and the device has a simple structure and is easy to use and operate, providing the visually impaired group with a very targeted auxiliary blind stick, which can effectively improve the travel convenience of the visually impaired group and fill this gap in the industry.

[0049] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A guide stick for the visually impaired with enhanced visual function, comprising a long stick body, a handle formed on the upper end of the stick body, characterized in that: It also includes a data processing unit and a wearable display screen; the handle is provided with an extension section extending forward, and the extension section is provided with a camera for photographing road conditions downward; the middle and lower part of the stick body is provided with a scanning unit for performing a three-dimensional scanning of the landing area, and the scanning unit is within the shooting area of ​​the camera, and the landing area includes the left and right side areas of the scanning unit; the data processing unit receives the shooting picture of the camera and the scanning image of the scanning unit, and has a first display mode, a second display mode and a third display mode; when in the first display mode, the shooting picture is sent to the display screen for display; when in the second display mode, the scanned image is sent to the display screen for display; when in the third display mode, the landing area image in the shooting image is eliminated, and the scanned image is embedded in the eliminated shooting image to form a composite image, and the composite image is sent to the display screen for display; the handle is provided with a controller for controlling the camera, the scanning unit and the data processing unit.

2. The guide stick with enhanced vision function for use by the visually impaired group according to claim 1, characterized in that: The scanning unit includes a lampshade, which can rotate relative to the stick body; the lower surface of the lampshade is an arc surface and is provided with a laser scanning head and an area indicator light surrounding the laser scanning head; the light spot area formed on the ground by the light emitted by the area indicator light after being focused by the lampshade is the landing area.

3. The guide stick with enhanced vision function for use by the visually impaired group according to claim 2, characterized in that: The stick body is provided with a rotating shaft, and both ends of the rotating shaft are longitudinally rotatably connected to fan-shaped protective frames, and the lampshade is fixedly connected to the fan-shaped lower edge of the protective frame; the stick body is provided with a gyroscope and a floating compensation unit for detecting the tilt angle of the stick body in the front and rear directions, and the floating compensation unit drives any of the protective frames to deflect around the rotating shaft to compensate for the set angle according to the detection data of the gyroscope, so as to maintain the stability of the position of the lampshade.

4. The guide stick with enhanced vision function for use by the visually impaired group according to claim 3, characterized in that: The floating compensation unit includes a data processing unit and a drive control unit. The data processing unit is used to analyze and process the detection data of the gyroscope and generate a deflection angle of the protective frame; the drive control unit is used to control the deflection of the protective frame according to the deflection angle of the protective frame.

5. The guide stick with enhanced vision function for use by the visually impaired group according to claim 4, characterized in that: The driving control unit comprises an arc-shaped rack fixed on the protective frame and a micro-driving motor fixed on the stick body, the movable end of the micro-driving motor is provided with a driving gear meshing with the arc-shaped rack, and the arc-shaped rack is coaxially arranged with the protective frame.

6. The guide stick with enhanced vision function for use by the visually impaired group according to claim 4, characterized in that: The data processing unit is also used to receive the angle setting value input by the controller, and control the micro drive motor to set the initial deflection angle of the protective frame according to the angle setting value.

7. The guide stick with enhanced vision function for use by the visually impaired group according to claim 4, characterized in that: An anti-skid pad is also provided at one end of the two protective frames close to the handle, and the two protective frames and the handle can form three supporting points for supporting the stick body in a horizontal state.

8. A method for applying a guide stick with enhanced visual function for use by amblyopia groups, applied to the guide stick with enhanced visual function for use by amblyopia groups as claimed in any one of claims 1 to 7, characterized in that: The method comprises: According to the actual road conditions, operate the controller to switch the display mode: When in the first display mode, the captured image is sent to the display screen for display; When in the second display mode, the scanned image is sent to the display screen for display; When in the third display mode, the landing area image in the captured image is eliminated, and the scanned image is embedded into the captured image after elimination to form a composite image, and the composite image is sent to the display screen for display.

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