Intelligent interaction system and intelligent blind guiding walking stick

Abstract

The invention discloses an intelligent interaction system and an intelligent blind guiding walking stick, which have the function of sensing the road condition in front, and transmit the road condition information to a user by touching the rotating direction of a ball so as to help the user to avoid obstacles. In addition, when the user goes up and down stairs, the walking stick can remind the user of the current walking direction through the up-down movement of the touch ball, so that the walking safety and convenience of the blind are improved.

Description

Technical Field

[0001] The present application relates to the technical field of crutch, and more specifically, to an intelligent interactive system and an intelligent guide crutch. Background Art

[0002] A cane is an effective auxiliary tool for the blind when walking. The function of the cane is to help the blind explore the road ahead, protect the body from being hurt, and let others know that the user is visually impaired.

[0003] Most existing crutches for the blind can only simply assist the blind in walking. When they need to go up or down stairs or there are obstacles ahead, the blind need to touch them with the crutches to detect them. It is impossible to remind the blind in which direction to walk in time, which causes many inconveniences in use.

[0004] Therefore, it is expected that there will be intelligent interactive systems and intelligent guide canes that can better assist the blind in their activities. Summary of the invention

[0005] In order to solve the above technical problems, the present application is proposed. The embodiments of the present application provide an intelligent interactive system that can assist the blind to perceive information.

[0006] The embodiment of the present application provides an intelligent interactive system, comprising a driving component (6), a spherical track (7) and a ball track (9), wherein a receiving cavity is formed inside the spherical track (7), wherein a driving ball (8) capable of rolling in the receiving cavity is installed in the receiving cavity, and a friction layer (15) is provided on the outer surface of the driving ball (8); the driving component (6) comprises a first driving motor and a second driving motor, wherein the output shafts of the first driving motor and the second driving motor both contact the friction layer of the driving ball, and are used to drive the driving ball to rotate in a first direction and a second direction respectively through the friction layer; a tactile ball (10) is rotatably installed inside the ball track (9), wherein each of the tactile balls (10) contacts the friction layer (15), and when the driving ball rotates in the first direction, the at least two tactile balls rotate in a third direction; and when the driving ball rotates in the second direction, the at least two tactile balls rotate in a fourth direction.

[0007] The intelligent exchange system provided in the embodiment of the present application drives a driving ball set in a spherical track to rotate in a first direction or a second direction through a first driving motor and a second driving motor respectively, and drives at least two tactile balls to rotate, so that certain information can be transmitted through the rotation of the tactile balls. The blind person can touch the tactile balls with their hands and identify the different rotation directions of the tactile balls to obtain corresponding information. For example, the blind person can obtain in which direction of the front, back, left, or right there is an obstacle, so that the obstacle can be avoided.

[0008] Preferably, a connecting plate (11) is provided between every two tactile balls of the ball track (9) to limit the position of the tactile balls.

[0009] Preferably, two motor plates are further included, each of which is provided with a motor mounting hole, the first drive motor and the second drive motor are respectively mounted on one of the motor plates, and the mounting hole is a waist-shaped hole.

[0010] Preferably, the device further comprises a sensing mechanism, wherein the sensing mechanism comprises a controller (17), a camera (18) and an infrared sensor (19), wherein the camera (18) and the infrared sensor (19) are both connected to the controller (17) by signals, and the controller is also connected to the first drive motor and the second drive motor by signals.

[0011] Preferably, when the infrared sensor (19) determines that the obstacle is located in the front-back direction, the controller (17) controls the first drive motor to start, and the first drive motor can drive the left rotating shaft (603) and the friction sleeve (604) to rotate. Under the action of friction force, the rotation of the friction sleeve (604) can drive the friction layer (15) and the drive ball (8) to rotate forward and backward. The rotation of the friction layer (15) and the drive ball (8) can drive the tactile ball (10) and the connecting plate (11) to rotate forward and backward, thereby sensing forward or backward movement.

[0012] Preferably, when the infrared sensor (19) determines that the obstacle is located in the left or right direction, the controller (17) can be used to control the second drive motor to start, and the second drive motor can drive the rotating shaft (603) and the friction sleeve (604) below to rotate. Under the action of friction force, the rotation of the friction sleeve (604) can drive the friction layer (15) and the drive ball (8) to rotate left and right. The left and right rotation of the friction layer (15) and the drive ball (8) can drive the tactile ball (10) and the connecting plate (11) to rotate left and right, thereby sensing walking to the left or right.

[0013] According to one aspect of the present application, there is provided an intelligent guide cane, comprising a rod body (2) and a grip portion (4), characterized in that the grip portion is mounted on the top of the rod body, the grip portion is provided with a cavity, the intelligent exchange system according to any one of claims 1 to 7 is arranged in the cavity, and the tactile ball is exposed outside the cavity.

[0014] Preferably, two first mounting plates (13), a second mounting plate (16) and a battery (21) are installed inside the cavity (5); an electric push rod (12) is installed on each of the two first mounting plates (13), and the telescopic ends of the two electric push rods (12) are fixedly connected to a straight plate (14), and the sides of the two straight plates (14) close to each other are fixedly connected to the spherical track (7); and a controller (17), a camera (18) and an infrared sensor (19) are installed on the side of the second mounting plate (16) close to the outside.

[0015] Preferably, a avoidance groove adapted to the spherical track (7) and allowing the spherical track (7) to pass through is provided at the top of the cavity (5).

[0016] Preferably, the battery (21) is electrically connected to all electrical components in the cavity (5), and a charging port compatible with the battery (21) is provided on the grip portion (4).

[0017] Compared with the prior art, the cane for the blind has the following beneficial effects:

[0018] During use, the present solution can identify the road condition ahead through the sensing mechanism, and then control the tactile ball to rotate forward and backward or left and right according to the road condition information. The blind person can know which direction to go to avoid obstacles by sensing the rotation direction of the tactile ball. When the blind person goes up and down the stairs, the tactile ball can be controlled to move up and down or down and up to remind the blind person whether to go upstairs or downstairs, thereby making it more convenient for the blind person to use.

[0019] Other advantages, objectives and features of the present invention will be set forth in part in the following description and, in part, will be apparent to those skilled in the art based on an examination of the following or may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] By describing the embodiments of the present application in more detail in conjunction with the accompanying drawings, the above and other purposes, features and advantages of the present application will become more apparent. The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application. In the accompanying drawings, the same reference numerals generally represent the same components or steps.

[0021] Figure 1 It is a schematic diagram of the side stereoscopic structure of the driving component and the spherical track in the intelligent interactive system according to an embodiment of the present application;

[0022] Figure 2 A cross-sectional view of a driving component and a spherical track in an intelligent interactive system according to an embodiment of the present application;

[0023] Figure 3 A schematic diagram of the connection between a tactile ball and a ball track in an intelligent interactive system according to an embodiment of the present application;

[0024] Figure 4 A structural diagram of a waist-shaped hole in an intelligent interactive system according to an embodiment of the present application;

[0025] Figure 5 This is a schematic diagram of the overall structure of a smart guide cane according to an embodiment of the present application;

[0026] Figure 6 A cross-sectional view of the internal structure of the hand grip portion of the smart guide cane according to an embodiment of the present application;

[0027] Figure 7 This is an enlarged schematic diagram of the structure at the gripping portion A in the overall structural schematic diagram of the intelligent guide cane according to an embodiment of the present application;

[0028] Figure 8 is a control flow chart of the present invention;

[0029] Fig. 9 is a control flow chart of the sensing mechanism of the present invention;

[0030] Fig.10 It is a control flow chart of the identification module of the present invention;

[0031] Fig.11 It is a control flow chart of the trigger module of the present invention;

[0032] Fig.12 This is a control flow chart of the transmitting and receiving modules (up and down moving parts) of the present invention;

[0033] Fig.13 This is a control flow chart of the transmitting and receiving modules (front, back, left, and right moving parts) of the present invention.

[0034] In the figure:

[0035] 1. Grounding part; 2. Rod body; 3. Connecting rod; 4. Hand grip; 5. Cavity; 6. Driving assembly; 601. Motor plate; 602. Driving motor; 603. Rotating shaft; 604. Friction sleeve; 7. Spherical track; 8. Driving ball; 9. Ball track; 10. Tactile ball; 11. Connecting plate; 12. Electric push rod; 13. First mounting plate; 14. Straight plate; 15. Friction layer; 16. Second mounting plate; 17. Controller; 18. Camera; 19. Infrared sensor; 20. Transparent protective shell; 21. Battery. DETAILED DESCRIPTION

[0036] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0037] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0038] In addition, in order to better illustrate the present application, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0040] An embodiment of the present application provides an intelligent interactive system for transmitting certain information to the blind through tactile feedback, such as conveying the presence of obstacles in front, behind, on the left, and on the right that affect their passage. The intelligent interactive system provided by the present application can be set on a crutch to form an intelligent guide cane. It is mainly set on the hand grip of the crutch, so that the blind can sense the rotation direction of the tactile ball through the hand grip, so as to obtain the corresponding information. The intelligent interactive system provided by the present application can also be set on a wheelchair to form an intelligent wheelchair for the blind. The intelligent interactive system provided by the present application can be set on the armrests of the wheelchair.

[0041] See also Figure 1 - Fig.13 , the present invention provides the following technical solutions:

[0042] An intelligent interactive system includes a driving component 6, a spherical track 7 and a ball track 9, wherein a receiving cavity is formed inside the spherical track 7, wherein a driving ball 8 that can roll in the receiving cavity is installed in the receiving cavity, and a friction layer 15 is provided on the outer surface of the driving ball 8; the driving component 6 includes a first driving motor and a second driving motor, wherein the output shafts of the first driving motor and the second driving motor both contact the friction layer of the driving ball, and are used to drive the driving ball to rotate in a first direction and a second direction respectively through the friction layer; at least two tactile balls 10 are rotatably installed inside the ball track 9, each of the tactile balls 10 is in contact with the friction layer 15, and when the driving ball rotates in the first direction, the at least two tactile balls both rotate in a third direction; when the driving ball rotates in the second direction, the at least two tactile balls both rotate in a fourth direction. Correspondingly, the first direction is forward rotation or backward rotation, and the corresponding third direction is backward rotation or forward rotation, and all the tactile balls form a straight line when rotating; the second direction is left rotation or right rotation, and the corresponding fourth direction is right rotation or left rotation, and all the tactile balls are parallel to each other when rotating. Specifically, a connecting plate 11 is provided between every two tactile balls of the ball track 9 to limit the tactile balls.

[0043] Specifically, the driving assembly 6 includes two motor plates 601, each of which is provided with a motor mounting hole, and the first driving motor and the second driving motor are respectively mounted on one of the motor plates, and the mounting holes are waist-shaped holes. The output ends of the two driving motors 602 are fixedly connected with a rotating shaft 603, and when the driving motors 602 are started, the driving motors 602 can drive the rotating shaft 603 to rotate, one of the rotating shafts 603 is located below the driving ball 8, and the other rotating shaft 603 is located on the left side of the driving ball 8, and the driving assembly 6 drives the driving ball 8 to rotate.

[0044] It should be understood that the drive motor 602 can be installed by passing the screw through the mounting hole and the waist-shaped hole on the drive motor 602 in sequence and then tightening the nut on the screw. Since the screw can slide along the waist-shaped hole, the installation position of the drive motor 602 can be fine-tuned, so that the friction sleeve 604 can be close to the friction layer 15 on the drive ball 8.

[0045] Furthermore, the sensing mechanism includes a controller 17, a camera 18 and an infrared sensor 19. The camera 18 can identify obstacles and transmit the identification results to the infrared sensor 19. Then the infrared sensor 19 can determine whether the obstacle is within a set range and transmit the identified command to the controller 17.

[0046] Furthermore, it should be understood that the technology of camera recognition of obstacles is an existing technology and is mostly used in fields such as autonomous driving, robot navigation and drone obstacle avoidance systems. Cameras generally use image processing technology and computer vision algorithms to identify objects in front. Specific methods include: image analysis, the camera can capture real-time images, and then use image analysis to identify whether the object in front is an obstacle. The system can analyze brightness changes, edge detection and shape matching in the image to identify whether there is an object blocking it. This technology can handle the differences between organic objects (such as pedestrians, animals) and inorganic objects (such as steps, walls). The advantage of the camera is that it can directly identify the appearance of an object through visual information, so it is not limited to the detection of living things.

[0047] Infrared sensors detect non-organic objects. Infrared sensors are often used to detect organic life forms, as life forms typically emit infrared radiation. However, infrared sensors can also be used to detect other objects in the environment, especially to determine distance by reflected infrared light signals. The sensor may use the following methods to detect non-organic obstacles: Active infrared detection, which determines the presence and distance of obstacles by emitting infrared light and measuring the signal reflected from the object. Whether it is organic or inorganic, as long as it can reflect infrared light, the sensor can detect it; infrared lidar, this technology is widely used in self-driving cars to detect objects around. Infrared lidar determines the distance and position of objects by emitting infrared light pulses and measuring the reflection time. Since infrared lidar can detect any type of object (whether organic or not), it performs well in detecting obstacles.

[0048] Because cameras and infrared sensors have great advantages in dealing with non-organic obstacles together, in order to judge obstacles of non-organic life forms, the combination of cameras and infrared sensors can play a greater advantage. First, the camera can identify the type and shape of the obstacle, while the infrared sensor can provide accurate distance data. This combination can help the system not only know the nature of the obstacle (organic or inorganic) when it detects an obstacle, but also determine its distance from the blind stick. Then, for inorganic obstacles (such as walls and roadblocks), after the infrared sensor detects the change in distance, the camera can assist in confirming the outline, edge and other features of the object, and further clarify whether the object poses an actual threat (for example, whether it needs to be avoided).

[0049] Furthermore, a driving ball 8 is rotatably installed inside the spherical track 7, and a friction layer 15 is provided on the outer surface of the driving ball 8; tactile balls 10 are rotatably installed inside the ball track 9, each tactile ball 10 is in contact with the friction layer 15, and the top of each tactile ball 10 extends out of the top of the cavity 5; under the action of friction force, when the driving ball 8 and then the friction layer 15 rotate, the tactile ball 10 can be driven to rotate in the opposite direction, which can drive the movement of the spherical track 7 and the connecting plate 11 and the tactile ball 10 to move accordingly.

[0050] Correspondingly, at least two tactile balls 10 are fixed to the connecting plate 11, and rotate forward and backward, left and right, and up and down in the track 9. It should be understood that at least two tactile balls 10 are fixed to the connecting plate 11, and the reason why each tactile ball is fixed in each track 9 by the connecting plate 11 is to connect multiple tracks into a main body to enhance stability.

[0051] Furthermore, it should be understandable that there are at least two tactile balls, which can increase the fineness of the touch: at least two balls can provide more tactile feedback points than one ball, and the fineness is higher. By touching multiple balls with fingers, more dimensional tactile changes can be perceived, and more accurate road condition information can be obtained, thereby helping them make better judgments, especially in complex terrain or environments; adapt to different gestures and holding methods: when holding a cane, you may not always hold the handle in the same posture. Multiple tactile balls are distributed in different positions to ensure that the direction of rotation of the balls can still be perceived under different holding methods, and there is no need to specially adjust the hand posture to perceive the road conditions, thereby improving the flexibility and comfort of the user experience; covering a wider contact surface: multiple balls can cover a larger contact area, which means that the user's palm or fingers can contact multiple balls at the same time. This not only makes the feedback clearer, but also improves the coordination between the balls, helping users to perceive changes in the environment more quickly.

[0052] Furthermore, when the infrared sensor 19 determines that the obstacle is located in the front and rear directions, the controller 17 can be used to control the first drive motor to start, and the first drive motor can drive the rotating shaft 603 and the friction sleeve 604 on the left to rotate. Under the action of friction, the rotation of the friction sleeve 604 can drive the friction layer 15 and the driving ball 8 to rotate forward and backward. The rotation of the friction layer 15 and the driving ball 8 can drive the tactile ball 10 and the connecting plate 11 to rotate forward and backward, thereby reminding to go forward or backward. When the infrared sensor 19 determines that the obstacle is located in the left and right directions, the controller 17 can be used to control the second drive motor to start, and the second drive motor can drive the rotating shaft 603 and the friction sleeve 604 below to rotate. Under the action of friction, the rotation of the friction sleeve 604 can drive the friction layer 15 and the driving ball 8 to rotate left and right. The rotation of the friction layer 15 and the driving ball 8 left and right can drive the tactile ball 10 and the connecting plate 11 to rotate left and right, thereby reminding to go left or right.

[0053] A smart guide crutch comprises a rod body 2 and a grip 4, wherein the grip is mounted on the top of the rod body, the grip is provided with a cavity, the smart exchange system as described in any one of claims 1 to 6 is arranged in the cavity, and the tactile ball is exposed outside the cavity; a grounding portion 1 is installed at the bottom of the rod body 2, a connecting rod 3 is installed at the top of the rod body 2, the end of the connecting rod 3 away from the rod body 2 is fixedly connected to the grip 4, a cavity 5 is provided inside the grip 4, and two first mounting plates 13, a second mounting plate 16, a battery 21, and a spherical track 7 are installed inside the cavity 5. A non-slip layer is provided at the bottom of the grounding portion 1 to increase the grip of the crutch. The rod body 2 can be replaced by a telescopic rod in the prior art to increase the overall height of the crutch to adapt to blind people of different heights. The two straight plates 14 are symmetrical about the spherical track 7. The electric push rod 12 can drive the straight plates 14 to move up and down, and the movement of the straight plates 14 can drive the spherical track 7 to move accordingly. The battery 21 is electrically connected to all electrical components in the cavity 5, and a charging port compatible with the battery 21 is provided on the grip 4.

[0054] An electric push rod 12 is installed on the two first mounting plates 13, and the telescopic ends of the two electric push rods 12 are fixedly connected to a straight plate 14, and the sides of the two straight plates 14 close to each other are fixedly connected to the spherical track 7; a controller 17, a camera 18 and an infrared sensor 19 are installed on the side of the second mounting plate 16 close to the outside.

[0055] An avoidance groove adapted to the spherical track 7 and for the spherical track 7 to pass through is provided at the top of the cavity 5. By providing the avoidance groove, when the spherical track 7 and the tactile ball 10 move up and down, interference with the hand grip 4 can be avoided.

[0056] The trigger module can control the opening and closing of all electrical components in the crutch. When the main switch is pressed, the indicator feedback light of the crutch will flash. When the connection is successful, the feedback light turns green and the recognition module is ready to start. Otherwise, the connection continues and the light turns red.

[0057] The recognition module, camera 18 and infrared sensor 19 work simultaneously to monitor the road conditions ahead in real time. The camera captures images, and the infrared sensor detects the distance and position of obstacles, and transmits the data to the controller 17. The controller processes and analyzes the data, determines whether there is an obstacle ahead, as well as the location and nature of the obstacle, and finally sends a control signal.

[0058] The transmitting module and the receiving module, in the front, back, left and right directions, after the driving motor 602 receives the signal from the controller, it starts to operate and drives the rotating shaft 603 to rotate. The rotation of the rotating shaft drives the friction sleeve 604 to rotate, and the friction sleeve contacts the friction layer 15 on the surface of the driving ball 8, and the driving ball rotates in the spherical track through friction. Finally, the tactile ball 10 is driven to rotate and the feedback information is transmitted to the blind; in the up and down directions, when the electric push rod 12 receives the signal from the controller, it starts to telescope, and the straight plate 14 moves along the first mounting plate 13. When the infrared sensor 19 determines that the obstacle is located in the up and down direction (for example, up and down stairs), the controller 17 can be used to control the electric push rod 12 to perform corresponding telescopic movements, so that the tactile ball 10 can be controlled to move up and down or down and up a stroke to remind the blind whether to go upstairs or downstairs at this time, which can make it more convenient for the blind to use.

[0059] Specifically, the feedback information is transmitted to the blind. First, when the blind approach the stairs and need to go upstairs, the tactile ball will feedback to the blind by moving upward, prompting them to lift their feet to go upstairs. This feedback is transmitted through the vertical movement of the tactile ball, which can help the blind know that they are about to face the stairs and take corresponding actions. Similarly, when the blind need to go downstairs, the tactile ball will move downward, prompting the blind to step on the downhill or stairs. This prompt helps the blind adjust their steps in advance to avoid falling or mistakes.

[0060] Correspondingly, the most common scenario for up and down prompts is stairs. Through the tactile feedback of up and down movement, the blind can tell whether to go up or down the stairs, avoiding accidents due to not being able to see the height of the steps. When the blind encounter a ramp, similar up and down feedback can also help them adjust their pace to ensure a smooth walk. The up and down prompt function of the cane can significantly improve the walking safety and convenience of the blind by sensing environmental changes on the stairs or ramps and providing tactile feedback in a timely manner. This design means that the blind no longer need to directly hit the stairs with their crutches to determine the existence of stairs, but instead rely on the intelligent feedback system to know the height difference in advance, so that they can walk more safely and confidently.

[0061] The ends of the two rotating shafts 603 are fixedly sleeved with friction sleeves 604, and the two friction sleeves 604 are in contact with the friction layer 15. The bottom and one side of the spherical track 7 are provided with grooves adapted to the friction sleeves 604; the rotation of the rotating shaft 603 can drive the friction sleeves 604 to rotate accordingly, and under the action of friction force, the rotation of the friction sleeves 604 can drive the driving ball 8 to rotate in the opposite direction.

[0062] A transparent protective shell 20 is provided at the head of the cavity 5, and the transparent protective shell 20 is used to protect the internal structure of the hand grip 4; the setting of the transparent protective shell 20 can prevent dust and debris from entering the interior of the hand grip 4 and causing damage to the electrical components inside the hand grip 4.

[0063] When the crutch is in use, the blind person first holds the grip 4 and makes the fingers touch the tactile ball, and then turns on the main switch. When the camera 18 recognizes an obstacle, the recognition result can be transmitted to the infrared sensor 19, and then the infrared sensor 19 determines whether the obstacle is within the set range, and transmits the recognized command to the controller 17. When the infrared sensor 19 determines that the obstacle is located in the front and back directions, the controller 17 can control the first drive motor to start, and the first drive motor can drive the left rotating shaft 603 and the friction sleeve 604 to rotate. Under the action of friction force, the rotation of the friction sleeve 604 can drive the friction layer 15 and the driving ball 8 to rotate forward and backward. The rotation of the friction layer 15 and the driving ball 8 can drive the tactile ball 10 to rotate forward and backward, thereby reminding the blind person to move forward or backward. When the infrared sensor 19 determines that the obstacle is located in the left or right direction, the controller 17 can be used to control the second drive motor to start, and the second drive motor can drive the rotating shaft 603 and the friction sleeve 604 below to rotate. Under the action of friction, the rotation of the friction sleeve 604 can drive the friction layer 15 and the drive ball 8 to rotate left and right. The left and right rotation of the friction layer 15 and the drive ball 8 can drive the tactile ball 10 to rotate left and right, thereby reminding the blind to walk left or right. When the infrared sensor 19 determines that the obstacle is located in the up and down direction (for example, going up and down stairs), the controller 17 can be used to control the electric push rod 12 to perform corresponding telescopic movements, so that the tactile ball 10 can be controlled to move up and down or up and down a stroke to remind the blind whether to go upstairs or downstairs at this time, which can be more convenient for the blind to use.

[0064] In summary, the intelligent interactive system and intelligent guide cane based on the embodiments of the present application can identify the road condition ahead through the sensing mechanism during use, and then control the tactile ball to rotate forward and backward or left and right according to the road condition information. The blind can know which direction to go to avoid obstacles by sensing the rotation direction of the tactile ball, and when the blind go up and down the stairs, the tactile ball can be controlled to move up and down or down and up to remind the blind whether to go upstairs or downstairs, which can make it more convenient for the blind to use.

[0065] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An intelligent interactive system, characterized in that: The invention comprises a driving assembly (6), a spherical track (7) and a ball track (9); a receiving cavity is formed inside the spherical track (7); a driving ball (8) capable of rolling in the receiving cavity is installed in the receiving cavity; and a friction layer (15) is provided on the outer surface of the driving ball (8); The driving assembly (6) comprises a first driving motor and a second driving motor, wherein the output shafts of the first driving motor and the second driving motor both contact the friction layer of the driving ball and are used to drive the driving ball to rotate in a first direction and a second direction respectively through the friction layer; A tactile ball (10) is rotatably mounted inside the ball track (9), and the tactile ball (10) is in contact with the friction layer (15). When the driving ball rotates in a first direction, the at least two tactile balls rotate in a third direction; when the driving ball rotates in a second direction, the at least two tactile balls rotate in a fourth direction.

2. The intelligent interactive system according to claim 1, characterized in that: A connecting plate (11) is provided between every two tactile balls of the ball track (9) to limit the position of the tactile balls.

3. An intelligent interactive system according to claim 2, characterized in that: It also includes two motor plates, each of which is provided with a motor mounting hole, the first drive motor and the second drive motor are respectively mounted on one of the motor plates, and the mounting hole is a waist-shaped hole.

4. The intelligent interactive system according to claim 3, characterized in that: The system also includes a sensing mechanism, which includes a controller (17), a camera (18) and an infrared sensor (19). The camera (18) and the infrared sensor (19) are both connected to the controller (17) by signal, and the controller (17) is also connected to the first drive motor and the second drive motor by signal.

5. An intelligent interactive system according to claim 4, characterized in that: When the infrared sensor (19) determines that the obstacle is located in the front-back direction, the controller (17) controls the first drive motor to start, and the first drive motor can drive the left rotating shaft (603) and the friction sleeve (604) to rotate. Under the action of friction force, the rotation of the friction sleeve (604) can drive the friction layer (15) and the drive ball (8) to rotate forward and backward. The rotation of the friction layer (15) and the drive ball (8) can drive the tactile ball (10) and the connecting plate (11) to rotate forward and backward, thereby sensing forward or backward movement.

6. The intelligent interactive system according to claim 5, characterized in that: When the infrared sensor (19) determines that the obstacle is located in the left or right direction, the controller (17) can be used to control the second drive motor to start, and the second drive motor can drive the rotating shaft (603) and the friction sleeve (604) below to rotate. Under the action of friction force, the rotation of the friction sleeve (604) can drive the friction layer (15) and the drive ball (8) to rotate left and right. The left and right rotation of the friction layer (15) and the drive ball (8) can drive the tactile ball (10) and the connecting plate (11) to rotate left and right, thereby sensing the movement to the left or right.

7. An intelligent blind guide cane, comprising a rod body (2) and a grip portion (4), characterized in that: The grip is mounted on the top of the rod body, and a cavity (5) is provided on the grip. The intelligent exchange system according to any one of claims 1 to 7 is arranged in the cavity, and the tactile ball is exposed outside the cavity.

8. The intelligent blind guiding cane according to claim 7, characterized in that: Two first mounting plates (13), a second mounting plate (16) and a battery (21) are installed inside the cavity (5); an electric push rod (12) is installed on each of the two first mounting plates (13); the telescopic ends of the two electric push rods (12) are fixedly connected to a straight plate (14); the sides of the two straight plates (14) close to each other are fixedly connected to the spherical track (7); and a controller (17), a camera (18) and an infrared sensor (19) are installed on the side of the second mounting plate (16) close to the outside.

9. The intelligent blind guide cane according to claim 8, characterized in that: The top of the cavity (5) is provided with an avoidance groove which is matched with the spherical track (7) and allows the spherical track (7) to pass through.

10. The intelligent blind guiding cane according to claim 9, characterized in that: The battery (21) is electrically connected to all electrical components in the cavity (5), and a charging port compatible with the battery (21) is provided on the grip portion (4).

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