Intelligent blind guiding stick and using method

Abstract

The invention relates to an intelligent blind guiding stick and a using method, the intelligent blind guiding stick comprises a stick rod, a telescopic rod and a grab handle, the stick rod is connected with the telescopic rod, the telescopic rod is connected with the grab handle, and the blind guiding stick further comprises a processing module, an acquisition module, a pressure sensor, a display screen and a shortcut key; when a user holds the grab handle and triggers the pressure sensor, the acquisition module begins to acquire information, the processing module receives and processes the acquired information, and if the obstacle distance accords with a preset range or light is insufficient, an alarm is given or illumination is increased; when the shortcut key is pressed, help seeking information is sent or a payment code appears in the display screen, and the method is used for the intelligent blind guiding stick. By arranging the illumination unit and the detection unit, when light is poor, light can be enhanced, and the quality of images collected by the camera shooting unit is improved; and the detection units are mounted at different positions, so that the detection accuracy can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent blind guide sticks, and in particular to an intelligent blind guide stick and a use method thereof. Background Art

[0002] At present, the travel assistance provided to the blind mainly includes: blind paths, guide dogs and guide sticks. Most blind people rely on traditional guide sticks to help them walk. This traditional guide stick senses the road conditions ahead by contacting the ground, but its sensing range is relatively small. It can only detect obstacles on the ground and low places, and its reaction speed and accuracy are poor. Although guide dogs are effective in assisting the blind to walk, their popularity is limited due to their long training period and high cost. Blind paths are often damaged and are often occupied by non-motor vehicles, which not only brings troubles to the blind, but may also cause injuries.

[0003] The invention patent with publication number CN103637900A discloses an intelligent guide stick based on image recognition, which belongs to the field of electronic information engineering technology. The intelligent guide stick consists of four parts: a hand-shaped stick handle, an intelligent stick body, a roller stick tip and a Bluetooth headset. A human-computer interaction subsystem, a road condition recognition subsystem, a navigation subsystem and a roller brake system are embedded in the guide stick; the patent can effectively identify blind paths and public transportation information through image recognition, but the image recognition effect is not good when the weather conditions are bad. At the same time, only image recognition is used, and the accuracy of identifying other obstacles is not high; at the same time, when blind people walk outside, they will have the need to buy items. If they use mobile phone payment, payment is inconvenient.

[0004] Therefore, providing a guide stick that is convenient for payment and can improve the accuracy of obstacles is an issue that urgently needs to be solved. Summary of the invention

[0005] The purpose of the present invention is to provide an intelligent blind guide stick and a method of use in order to overcome the defects of the above-mentioned prior art.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] According to one aspect of the present invention, there is provided an intelligent blind guide stick, comprising a stick rod, a telescopic rod and a handle, wherein the stick rod is connected to the telescopic rod, and the telescopic rod is connected to the handle, and the blind guide stick further comprises a processing module, a collection module, a pressure sensor, a display screen and shortcut keys, wherein the processing module is mounted on the telescopic rod, and the processing module is respectively connected to the collection module, the pressure sensor, the display screen and the shortcut keys for communication, wherein the collection module is respectively mounted on the stick rod and the telescopic rod, and wherein the pressure sensor, the display screen and the shortcut keys are respectively mounted on the handle;

[0008] Among them, hold the handle and trigger the pressure sensor, the acquisition module starts to collect information, the processing module receives the collected information and processes it, if the obstacle distance is within the preset range or the light is insufficient, an alarm is issued or the lighting is increased; when the shortcut key is pressed, a distress message is sent or a payment code appears on the display screen.

[0009] As a preferred technical solution, the acquisition module includes a camera unit, a lighting unit and a detection unit, the camera unit and the lighting unit are installed on the stick, and the detection unit is installed on the stick and the telescopic rod respectively, and the camera unit, the lighting unit and the detection unit are respectively connected to the processing module for communication.

[0010] As a preferred technical solution, the guide stick also includes a ball hinge mechanism and a speaker, the ball hinge mechanism is respectively installed on the telescopic rod and the handle, the handle is connected to the telescopic rod through the ball hinge mechanism, and the speaker is installed on the handle and is communicatively connected to the processing module.

[0011] As a preferred technical solution, the guide stick also includes a control panel, which is installed on the telescopic rod. The control panel includes a power button and a help button, and the power button and the help button are respectively communicatively connected to the processing module.

[0012] As a preferred technical solution, the guide stick also includes a locking device, which is respectively installed on the stick shaft and the telescopic rod, and the stick shaft and the telescopic rod are connected through the locking device.

[0013] As a preferred technical solution, the locking device includes a spring pin, a lock buckle and an unlocking button, the spring pin is installed on the telescopic rod, and the lock buckle and the unlocking button are respectively installed on the stick.

[0014] As a preferred technical solution, the guide stick also includes a rubber sleeve, which is installed at the connection between the stick shaft and the telescopic rod.

[0015] As a preferred technical solution, the guide stick also includes a rubber base plate, which is mounted on the stick shaft and is conical.

[0016] According to another aspect of the present invention, a method for using any of the above-mentioned smart guide sticks is provided, the method comprising the following steps:

[0017] S1. When the handle is held and the pressure sensor is triggered, the acquisition module collects surrounding information and transmits it to the processing module;

[0018] S2. If the processing module determines that the obstacle distance is less than the preset range, an alarm is issued;

[0019] S3. If the processing module determines that the light is insufficient, the light is increased;

[0020] S4. If the shortcut key is pressed, a distress message is sent or a payment code appears on the display.

[0021] As a preferred technical solution, if you click the shortcut key, a distress message will be sent; if you long press the shortcut key, a payment code will appear on the display screen.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention can enhance the light and improve the quality of images collected by the camera unit when the light is poor by setting the lighting unit and the detection unit; the detection unit is installed at different positions to improve the accuracy of detection.

[0024] 2. The present invention adopts shortcut keys and a display screen. By pressing the shortcut keys, you can choose whether to send a distress message or open a payment code. The payment code is displayed on the display screen, which is convenient for payment.

[0025] 3. The present invention connects the stick and the telescopic rod by using a locking device, which can facilitate the disassembly of the stick and the telescopic rod.

[0026] 4. The handle and the telescopic rod of the present invention are connected by a ball hinge mechanism, which can achieve a wider range of angle adjustment and rotational movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the structure of the locking device of the present invention;

[0029] Figure 3 It is a schematic structural diagram of the handle of the present invention.

[0030] 1. Pole; 2. Telescopic pole; 3. Handle; 4. Integrated module; 5. Camera unit; 6. Lighting unit; 7. Detection unit; 8. Rubber base; 9. Shortcut key; 10. Braille number key; 11. Display screen; 12. Scanning terminal; 13. Speaker; 14. Locking device; 15. Control panel; 16. Rubber sleeve; 17. Spring pin; 18. Lock hole; 19. Unlock button; 20. Ball head; 21. Ball seat. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0033] Visually impaired people may encounter various difficulties and challenges in their daily lives. For example, they may run into obstacles, have no idea of ​​the road conditions ahead, or get lost without a guardian. Therefore, the need for travel safety for blind and low-vision patients is urgent.

[0034] At present, the travel assistance provided to the blind mainly includes: blind paths, guide dogs and guide sticks. Most blind people rely on traditional guide sticks to help them walk. This traditional guide stick senses the road conditions ahead by contacting the ground, but its sensing range is relatively small. It can only detect obstacles on the ground and low places, and its reaction speed and accuracy are poor. Although guide dogs are effective in assisting the blind to walk, their popularity is limited due to their long training period and high cost. Blind paths are often damaged and are often occupied by non-motor vehicles, which not only brings troubles to the blind, but may also cause injuries.

[0035] In recent years, with the advancement of technology, smart guide sticks have gradually entered people's field of vision and are used to help the visually impaired travel. However, both traditional and smart guide devices have some problems in design and function. The main problem is that their design is often not humanized enough and cannot fully meet the actual needs of the blind. In terms of function, their detection efficiency is often not high enough to provide accurate and timely information to the blind.

[0036] Therefore, in order to better meet the travel needs of the visually impaired group, we urgently need to improve and innovate the existing guide canes. The present invention provides a smart guide cane and a method of use; the present invention can enhance the light and improve the image quality of the camera unit when the light is poor by setting a lighting unit and a detection unit; the detection unit is installed in different positions to improve the accuracy of detection. The present invention uses shortcut keys and display screens. By pressing the shortcut keys, you can choose whether to send a distress message or open a payment code. The payment code is displayed on the display screen to facilitate payment. The present invention uses a locking device to connect the cane pole and the telescopic rod, which can facilitate the disassembly of the cane pole and the telescopic rod. The handle and the telescopic rod of the present invention are connected by a ball hinge mechanism, which can achieve a wider range of angle adjustment and rotational movement.

[0037] Example 1

[0038] like Figure 1-Figure 3As shown, a smart blind guide stick includes a stick rod 1, a telescopic rod 2 and a handle 3, wherein the stick rod 1 is connected to the telescopic rod 2, and the telescopic rod 2 is connected to the handle 3. The blind guide stick also includes a processing module 4, a collection module, a pressure sensor, a display screen 11 and a shortcut key 9, wherein the processing module 4 is mounted on the telescopic rod 2, and the processing module 4 is respectively connected to the collection module, the pressure sensor, the display screen 11 and the shortcut key 9 in communication, wherein the collection modules are respectively mounted on the stick rod 1 and the telescopic rod 2, and the pressure sensor, the display screen 11 and the shortcut key 9 are respectively mounted on the handle 3;

[0039] Among them, hold the handle 3 and trigger the pressure sensor, the acquisition module starts to collect information, the processing module 4 receives the collected information and processes it, if the obstacle distance is within the preset range or the light is insufficient, an alarm is issued or the lighting is increased; when the shortcut key 9 is pressed, a distress message is sent or a payment code appears on the display screen 11.

[0040] In this embodiment, the walking stick 1 includes a walking stick 1 and a telescopic rod 2 movably mounted on the walking stick 1. The inner diameter of the walking stick 1 is larger than the outer diameter of the telescopic rod 2. The telescopic rod 2 can move inside the walking stick 1. Specifically, the telescopic rod 2 is slidably mounted on the walking stick 1. A locking device 14 for locking the position of the telescopic rod 2 is provided at the ends of the telescopic rod 2 and the walking stick 1.

[0041] The cane 1 and the telescopic rod 2 are both made of aluminum alloy, and the handle 3 is made of resin. The cane 1 and the telescopic rod 2 made of aluminum alloy are lighter and can ensure strength, which reduces the load of the user and makes the use of the guide cane more flexible. In addition, aluminum alloy has good processability, low manufacturing cost, good corrosion resistance, suitable for outdoor use, and can be recycled for ritual use, which is energy-saving and environmentally friendly.

[0042] Similarly, the handle 3 made of resin material has excellent insulation performance, good chemical stability, is suitable for use in harsh environments, is very light, reduces weight, has good wear resistance, can be recycled and reused, reduces resource waste, and meets green environmental protection requirements.

[0043] A handle 3 is installed on the top of the telescopic rod 2. Specifically, a pressure sensor is installed on the handle 3 to detect whether the user is using a guide stick. A pressure sensor is a sensor that can sense the pressure exerted by an object on its surface and convert it into an electrical signal output. In this embodiment, it is used to measure and monitor the pressure state at the handle 3, and can control the opening of the guide stick according to the pressure change. At the same time, it can also determine whether the blind person is in danger according to the pressure change during the use of the guide stick. There is an embedded opening at the top of the handle 3 in advance, and the pressure sensor is embedded and installed. During the use of the guide stick, the blind person's hand can continue to contact the front entrance to monitor the hand pressure.

[0044] The processing module 4 is internally installed with a single-chip microcomputer and a power supply. The single-chip microcomputer is equipped with a processor, a memory, a communication module, an audio processing module and a positioning module. The communication sub-module includes a WiFi module, an RFID reader / writer, a 5G module and a Bluetooth module. The single-chip microcomputer is loaded with the OpenCV vision library.

[0045] Specifically, the single-chip computer uses the Arduino UNO board to develop a guide stick. First, according to the needs of the guide stick, various sensors (such as ultrasonic sensors) and actuators (such as vibration motors) are connected to the Arduino UNO board using Dupont wires; then, the Arduino IDE is used to write code to realize the data processing and control functions of the guide stick; then, the Arduino UNO board is connected to the computer via a USB cable, and the Arduino IDE is used to upload the written code to the Arduino board; finally, the guide stick is connected to a power source and tested, and the correctness of the code is verified by monitoring the serial port output and observing the reaction of the actuator, and necessary debugging is performed.

[0046] Specifically, the power source is a lithium battery, and the positioning module is a GPS module. Lithium batteries are used as the power source of guide sticks because they have a higher energy density than traditional batteries, that is, they can store more electrical energy per unit volume or unit weight, which enables them to provide longer use time with relatively small volume and weight; they have a longer cycle life and can withstand more charge and discharge cycles without loss of performance; and lithium batteries are relatively light, making them more suitable for this lightweight design. Using GPS for positioning has the advantages of high positioning accuracy, wide coverage, good real-time performance, and easy integration.

[0047] Specifically, the guide stick is also designed with an online user management terminal. Through WIFI hotspots, 5G networks and Bluetooth collaboration with the user management terminal, guardians can more conveniently obtain the blind person's usage status information and efficiently link up. Bluetooth and WIFI communications can exchange data over short distances to form a personal local area network, and the guide stick is pre-loaded with offline guide data.

[0048] Even in an environment without Internet access, blind people can interact with the guide stick to guide their walking, providing greater flexibility and convenience. The 5G network is mainly used to interact with the online user management terminal and can connect to the external LAN to complete payment, data update and other functions.

[0049] The communication module also includes an RFID reader / writer, which automatically identifies objects and obtains relevant data within a short range through radio frequency identification. The tags are set in advance on roads or public facilities where blind people often walk. Each tag records the information of the road section or facility information. The RFID reader / writer communicates with the tag through radio waves to read and write the information stored in the tag. Its advantage is that it can automatically identify objects without human intervention, thereby improving work efficiency and accuracy. Compared with traditional identification technologies such as bar codes, RFID can achieve long-distance identification and can work normally even in invisible or complex environments. RFID technology can achieve fast data reading and writing, and is suitable for large-scale item tracking and management. RFID tags are usually durable and can withstand harsh environments and long-term use. RFID readers can identify multiple tags at the same time, realize simultaneous operation of multiple tags, and improve processing efficiency.

[0050] The application scenarios of OpenCV include but are not limited to the following aspects:

[0051] (1) Image processing: OpenCV provides a series of image processing algorithms such as grayscale, binarization, filtering, edge detection, etc., which can be applied to image enhancement, denoising, segmentation, etc.

[0052] (2) Object recognition and tracking: OpenCV provides a variety of object detection algorithms, such as face detection and target detection, and supports a variety of tracking algorithms, such as Kalman filtering and mean shift.

[0053] (3) Video processing: OpenCV can process video streams, including video acquisition, encoding and decoding, special effects processing, etc.

[0054] (4) 3D reconstruction: OpenCV provides algorithms and tools related to multi-view geometry and 3D reconstruction, which can be applied to 3D modeling, virtual reality and other fields.

[0055] In this embodiment, the OpenCV visual library is loaded on the single-chip microcomputer in advance for real-time calling by the image processing program to process and identify the image. By starting the network camera video stream, the captured picture is transmitted to the computer vision in real time by using the camera device 5 for recognition and image instance segmentation. In instance segmentation, the goal is to detect specific objects in the image and create a mask around the object of interest, which can also be considered as object detection, where the output is a mask rather than just a bounding box. Unlike semantic segmentation, which attempts to classify each pixel in the image, the purpose of instance segmentation is not to mark each pixel in the image. It not only needs to classify the image at the pixel level, but also needs to distinguish different instances of the same category, that is, to give each pixel a semantic label, and to group pixels of the same category into independent instances. In short, in addition to classification, instance segmentation also needs to further distinguish instances of different objects, such as people, cats and dogs, etc.

[0056] The audio processing module is an integrated circuit chip specially used for audio signal processing. The audio processing module is equipped with a speech synthesis module, which is used to convert text information into natural and fluent speech output, so that the guide stick has speech interaction capabilities and realizes text-to-speech conversion. The speech synthesis module usually includes the following functions and features: receiving input text information, converting text into speech output through speech synthesis algorithms and sound libraries; generating natural, fluent, and realistic speech output, so that the listener feels like hearing a real person speaking; supporting multiple languages ​​and pronunciation methods, and being able to adapt to the needs of different regions and cultures; allowing users to choose different voice styles, timbres, speech speeds and other parameters to meet the personalized needs of users.

[0057] The acquisition module includes a camera unit 5, a lighting unit 6 and a detection unit 7, the camera unit 5 and the lighting unit 6 are installed on the stick 1, and the detection unit 7 is installed on the stick 1 and the telescopic rod 2 respectively, and the camera unit 5, the lighting unit 6 and the detection unit 7 are respectively connected to the processing module for communication.

[0058] In this embodiment, a camera unit 5 and a lighting unit 6 are installed side by side below the stick 1, and a detection unit 7 is installed below the lighting unit 6. The camera unit 5 can quickly shoot the scene in front of the traveling direction. Because the blind person needs to constantly drive the guide stick when walking, which will cause shaking, the camera unit 5 is specifically selected as a motion camera. The motion camera is a camera unit 5 specially designed for capturing motion scenes, with fast continuous shooting capability and excellent stability, capable of shooting clear, detailed high-definition images and capturing subtle details; it has good optical sensors and image processing technology, and can maintain high-quality image performance under low light conditions.

[0059] The lighting unit 6 is specifically an LED lighting lamp, and a photosensitive sensor for automatic lighting is also installed next to the lighting unit 6. LED lighting lamps are used, which have high energy efficiency and can emit brighter light with less energy. Compared with traditional incandescent lamps and fluorescent lamps, LED lamps can significantly save energy; they have a very long service life, which can usually reach tens of thousands of hours, which means less replacement and maintenance costs and reduced impact on the environment; they can immediately reach full light irradiation without preheating time; they have a small size and flexible structure; they have a solid solid structure and strong earthquake resistance, and are suitable for various harsh environments. The LED lighting lamp can obtain clear images for the camera unit 5 in a dark environment and provide guidance for the blind in a dim scene in a timely manner.

[0060] The light sensor installed next to the LED light can identify the intensity of external light, and send a signal to start or shut down the LED light according to the intensity of the light, thus realizing the self-starting or shutting down function of the LED light, which is more intelligent and convenient.

[0061] The detection unit 7 is used to detect obstacles ahead in the direction of travel. When the obstacle is too close, an alarm will be sounded through the speaker 13 to alert the blind person. The detection unit 7 is specifically an ultrasonic detector, which adopts the ultrasonic ranging principle. The ultrasonic wave has strong directivity. When it encounters an obstacle on the way, it will return immediately. The ultrasonic receiver will stop timing immediately after receiving the reflected wave. By calculating the time it takes for the ultrasonic wave to return after encountering an obstacle, the distance between the guide stick and the obstacle is measured. If the distance is too close, an alarm will be sounded. The ultrasonic sensor is used to measure the distance to help identify the obstacle ahead. It is non-contact detection and low-carbon and environmentally friendly.

[0062] Furthermore, a detection unit 7 is also installed on the telescopic rod 2 to expand the obstacle avoidance detection area. The detection range covers a fan-shaped area within 2 meters in front of the blind person. The dual-probe design can greatly reduce detection errors and further improve the accuracy of obstacle avoidance.

[0063] The guide stick also includes a ball hinge mechanism and a speaker 13, wherein the ball hinge mechanism is respectively mounted on the telescopic rod 2 and the handle 3, the handle 3 is connected to the telescopic rod 2 via the ball hinge mechanism, and the speaker 13 is mounted on the handle 3 and is in communication connection with the processing module 4.

[0064] In this embodiment, the handle 3 is hingedly mounted on the top of the telescopic rod 2, and a flexible protective cover is installed at the hinged position. The handle 3 can rotate within a certain angle range, and the blind can adjust the tilt angle of the handle 3 according to their own usage habits. It has good flexibility and can meet the needs of different user groups. The handle 3 and the telescopic rod 2 are ball-hinged, and a spherical connector is used to achieve a wider range of angle adjustment and rotational movement. A ball head 20 is installed at the end of the handle 3, and a ball seat 21 is installed at the end of the telescopic rod 2. A bearing is provided inside the ball seat 21 to reduce friction and ensure smooth movement of the ball head 20.

[0065] The guide stick also includes a control panel 15, which is mounted on the telescopic rod 2. The control panel 15 includes a power button and a help button, which are respectively connected to the processing module for communication.

[0066] In this embodiment, a control panel 15 for user control and a processing module 4 for data processing are installed in sequence below the handle 3. The control panel 15 and the processing module 4 are both installed on the telescopic rod 2. The control panel 15 is a simple control panel 15, on which a help button and a power button are provided. The touch of each button is different, and the blind people use this to distinguish. The power button is used to turn off the guide stick. When turning off the guide stick, it is necessary to ensure that the blind person is not holding the handle 3. Pressing the help button twice in succession can send a help signal to the guardian.

[0067] The guide stick further comprises a locking device 14 , which is respectively mounted on the stick shaft 1 and the telescopic rod 2 , and the stick shaft 1 and the telescopic rod 2 are connected via the locking device 14 .

[0068] The locking device 14 includes a spring pin 17 , a lock buckle 18 and an unlocking button 19 . The spring pin 17 is mounted on the telescopic rod 2 , and the lock buckle 18 and the unlocking button 19 are respectively mounted on the stick 1 .

[0069] In this embodiment, the locking device 14 includes a spring pin 17 installed at the bottom of the telescopic rod 2, and a locking hole 18 is correspondingly provided at the top of the walking stick 1. When the telescopic rod 2 is extended to the point where the spring pin 17 is inserted into the locking hole 18, the position of the telescopic rod 2 is fixed. When the telescopic rod 2 needs to be retracted into the walking stick 1, the unlocking button 19 installed at the top of the walking stick 1 is pressed to disengage the spring pin 17 from the locking hole 18, and the telescopic rod 2 can then move.

[0070] As another embodiment in which the telescopic rod 2 is movably installed on the walking stick 1, the telescopic rod 2 is threadedly connected to the walking stick 1 to achieve linear telescopic extension. An external thread is arranged on the outside of the telescopic rod 2, and an internal thread matching the external thread is arranged on the inside of the walking stick 1. The height position of the telescopic rod 2 can be freely adjusted according to the height and usage habits of the blind person, and a positioning pin is installed on the top of the walking stick 1. The positioning pin can be rotated to achieve the positioning of the telescopic rod 2, which has good flexibility.

[0071] The guide stick for the blind further comprises a rubber sleeve 16, which is mounted at the connection between the stick shaft 1 and the telescopic rod 2. The guide stick for the blind further comprises a rubber bottom plate 8, which is mounted on the stick shaft 1 and is conical.

[0072] In this embodiment, a rubber sleeve 16 for protecting the connection between the top of the stick 1 and the telescopic rod 2 is installed. The rubber sleeve 16 has good elasticity and shock absorption performance, can effectively reduce the vibration and noise generated at the connection, play a buffering and protective role, and has good sealing performance, can effectively prevent moisture, dust and other external substances from entering the connection, and protect the parts from damage.

[0073] The bottom of the stick 1 is set to be conical and a rubber bottom plate 8 is installed at the contact point with the ground. The conical design of the bottom of the stick 1 can provide better ground adhesion, increase the stability of the crutch, reduce the risk of slipping, absorb part of the impact force when contacting the ground, reduce the pressure on the arm and wrist, and provide more comfortable support; it makes it easier for the crutch to cross uneven ground, such as gravel, grass, etc., and improves the flexibility and adaptability of walking. In general, the conical design of the bottom of the crutch can improve the comfort and safety of the user.

[0074] The rubber bottom plate 8 installed at the bottom of the stick 1 can play a buffering role when the stick contacts the ground, reduce the vibration transmitted to the arms and shoulders, and thus reduce the user's physical burden; in addition, it has good friction performance, can increase the friction between the stick and the ground, provide better grip, and help the user get more stable support when walking; it can reduce the scratching and wear of the ground when the stick contacts the ground directly, and protect the ground from damage. In general, installing the rubber bottom plate 8 can improve the comfort and stability of the stick, and is also beneficial to protecting the user and the surrounding environment.

[0075] Furthermore, the present invention can also be installed with a braille number key 10 and a code scanning end 12, the shortcut key 9 and the braille number key 10 are installed on the same surface, the display screen 11 and the code scanning end 12 are both installed on the end surface of the second handle, and the speaker 13 is installed at both ends of the shortcut key 9. The braille number key 10 is a tool for the blind to read and write braille numbers. It is usually composed of a group of concave, convex or protruding points, each of which represents a number. The braille number key 10 is used in combination with other braille symbol keys to enable the blind to read and write numbers, letters and other symbols. By reasonably allocating the distribution of the braille data keys 10 on the handle 3, the blind can enter the amount when paying and scan the payment code through the code scanning end 12; the braille number key 10 is used for the blind to enter the payment amount or perform some simple calculations when paying. These keyboards can help the blind input and output numbers in daily life, such as using a calculator, filling in forms, etc.

[0076] The display screen 11 is used to display the payment code, the scanning end 12 is used to scan the merchant's payment code, and the speaker 13 is used for various information broadcasts and reminders.

[0077] Example 2

[0078] A method for using an intelligent blind guide stick, the method comprising the following steps:

[0079] S1, when the handle 3 is held and the pressure sensor is triggered, the acquisition module collects surrounding information and transmits it to the processing module 4;

[0080] S2. If the processing module 4 determines that the obstacle distance is less than the preset range, an alarm is issued;

[0081] S3, if the processing module 4 determines that the light is insufficient, then increase the light;

[0082] S4. If the shortcut key 9 is pressed, a distress message is sent or a payment code appears on the display screen 11.

[0083] If the shortcut key (9) is clicked, a distress message is sent; if the shortcut key 9 is long pressed, a payment code appears on the display screen 11.

[0084] In this embodiment, the specific method of use is as follows: when the blind person needs to walk, the telescopic rod 2 of the guide stick is extended and fixed in position, and the handle 3 is held by hand. The pressure sensor at the handle 3 senses and starts the device to run. During the walking process of the blind person, the camera device 5 obtains the environmental image around the blind person and transmits the captured image information to the integrated device 4. At the same time, the detection device 7 detects the distance between the guide stick and the obstacle, and the positioning module locates the blind person in real time.

[0085] After the processing module 4 receives the image information, the OpenCV vision library loaded on the single-chip computer recognizes and segments the image, detects specific objects in the image and creates a mask around the object of interest, classifies the image at the pixel level and distinguishes different instances of the same class to identify different objects. At the same time, the detector detects the distance to the obstacle. When the distance is greater than the specified value, no alarm is issued;

[0086] When a blind person encounters an obstacle in front of him, the detection unit 7 senses that the obstacle is too close and issues an alarm through the speaker 13. At the same time, the camera unit 5 obtains the image information of the obstacle, and the processing module 4 identifies which object the obstacle is, broadcasts it, reminds the blind person, and guides him to walk in a direction without obstacles.

[0087] When a blind person enters a store to pay for shopping, he or she turns the handle 3 to a vertical position with the telescopic rod 2 to unlock the payment function. The blind person presses the shortcut key 9 to send a distress message. If the shortcut key 9 is pressed for a long time, the display screen 11 at the end of the handle 3 displays the payment code.

[0088] At the same time, tags are laid on the roads where blind people walk and at various public facilities. When blind people walk, the RFID reader in the guide stick can quickly read the tag information and broadcast it, realizing intelligent interaction with the surrounding environment and collaboratively monitoring road information.

[0089] When the blind person is in danger, he can press the help button on the control panel 15 to send a help message to the guardian, and the guardian can check the position of the blind person and the surrounding environment online and make corresponding decisions. Or when the blind person leaves the handle 3 for a certain period of time during the operation of the guide stick, the pressure sensor will sense and send a message to remind the guardian;

[0090] When the sky gets dark while the blind person is walking, the LED lighting in the lighting unit 6 automatically turns on to illuminate the road ahead, making it easier for the camera unit 5 to obtain image information;

[0091] When the blind person does not need to walk, he releases the handle 3 and presses the shortcut key 9. The pressure sensor at the handle 3 senses and sends a signal, which is automatically turned off after a period of time. The blind person manipulates the locking device 14 to unlock the position of the telescopic rod 2, and the telescopic rod 2 retracts into the stick 1.

[0092] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in 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.

Claims

1. An intelligent blind guide stick, comprising a stick shaft (1), a telescopic rod (2) and a handle (3), wherein the stick shaft (1) and the telescopic rod (2) are connected, and the telescopic rod (2) and the handle (3) are connected, characterized in that: The guide stick further comprises a processing module (4), a collection module, a pressure sensor, a display screen (11) and a shortcut key (9); the processing module (4) is mounted on the telescopic rod (2); the processing module (4) is respectively connected to the collection module, the pressure sensor, the display screen (11) and the shortcut key (9); the collection modules are respectively mounted on the stick (1) and the telescopic rod (2); the pressure sensor, the display screen (11) and the shortcut key (9) are respectively mounted on the handle (3); When the handle (3) is held and the pressure sensor is triggered, the acquisition module starts to acquire information, and the processing module (4) receives and processes the acquired information. If the distance of the obstacle meets the preset range or the light is insufficient, an alarm is sounded or the lighting is increased; when the shortcut key (9) is pressed, a distress message is sent or a payment code appears on the display screen (11).

2. The intelligent blind guiding stick according to claim 1, characterized in that: The acquisition module comprises a camera unit (5), a lighting unit (6) and a detection unit (7); the camera unit (5) and the lighting unit (6) are mounted on the stick (1); the detection unit (7) is mounted on the stick (1) and the telescopic rod (2) respectively; the camera unit (5), the lighting unit (6) and the detection unit (7) are respectively connected to the processing module for communication.

3. The intelligent blind guiding stick according to claim 1, characterized in that: The guide stick also comprises a ball hinge mechanism and a loudspeaker (13); the ball hinge mechanism is respectively mounted on the telescopic rod (2) and the handle (3); the handle (3) is connected to the telescopic rod (2) via the ball hinge mechanism; the loudspeaker (13) is mounted on the handle (3) and is communicatively connected to the processing module (4).

4. The intelligent blind guiding stick according to claim 1, characterized in that: The guide stick also includes a control panel (15), which is mounted on the telescopic rod (2). The control panel (15) includes a power button and a help button, and the power button and the help button are respectively connected to the processing module for communication.

5. The intelligent blind guiding stick according to claim 1, characterized in that: The guide stick also comprises a locking device (14), wherein the locking device (14) is respectively mounted on the stick shaft (1) and the telescopic rod (2), and the stick shaft (1) and the telescopic rod (2) are connected via the locking device (14).

6. The intelligent blind guiding stick according to claim 5, characterized in that: The locking device (14) comprises a spring pin (17), a lock buckle (18) and an unlocking button (19); the spring pin (17) is mounted on the telescopic rod (2); and the lock buckle (18) and the unlocking button (19) are respectively mounted on the stick rod (1).

7. The intelligent blind guiding stick according to claim 5, characterized in that: The guide stick also includes a rubber sleeve (16), and the rubber sleeve (16) is installed at the connection between the stick shaft (1) and the telescopic rod (2).

8. The intelligent blind guiding stick according to claim 1, characterized in that: The guide stick also comprises a rubber bottom plate (8), wherein the rubber bottom plate (8) is mounted on the stick shaft (1), and the rubber bottom plate (8) is conical.

9. A method for using the smart blind guide stick according to any one of claims 1 to 8, characterized in that: The method comprises the following steps: S1, when the handle (3) is held and the pressure sensor is triggered, the acquisition module acquires surrounding information and transmits it to the processing module (4); S2. If the processing module (4) determines that the obstacle distance is less than a preset range, an alarm is issued; S3, if the processing module (4) determines that the light is insufficient, then increase the light; S4. If the shortcut key (9) is pressed, a distress message is sent or a payment code appears on the display screen (11).

10. The method according to claim 9, characterized in that If the shortcut key (9) is clicked, a distress message is sent; if the shortcut key (9) is long pressed, a payment code appears on the display screen (11).

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