Intelligent vision-aided obstacle avoidance cap

Abstract

The invention discloses an intelligent vision-aided obstacle avoidance cap which comprises a 3D printing personalized cap body, a multi-directional ultrasonic sensor, a control module and a multi-mode early warning system. The cap body is made of a noctilucent material and is designed in a lattice structure, so that the cap has the characteristics of light weight, high impact resistance and self-luminous property. The system detects obstacles through ultrasonic waves and reminds a user through vibration, light and voice, so that the travel safety and autonomy of visually impaired people are improved. The method is suitable for visual impaired people of all ages and special environment operators.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of auxiliary equipment, and in particular to an intelligent vision auxiliary obstacle avoidance cap. BACKGROUND

[0002] Currently, the challenges and potential dangers faced by visually impaired people when traveling far exceed ordinary people. Due to visual impairment, they have difficulty perceiving changes in the surrounding environment, such as obstacles, vehicles, and pedestrians, which increases the risk of travel. Visually impaired people need to convert environmental information into the most direct form that blind friends can perceive because they cannot see or see the environmental conditions. In the prior art, visually impaired people mainly rely on traditional assistive tools such as guide canes and guide dogs. The guide cane has a limited detection range and can only cover a local area on the ground; the guide dog has a high training cost and is limited in use, and cannot provide all-weather protection. In addition, existing electronic guide devices are mostly handheld or mounted, which has the problems of inconvenient wearing, single function, lack of personalized adaptation, etc., and it is difficult to meet the all-round safety needs of visually impaired people in complex environments.

[0003] Therefore, there is an urgent need for an intelligent wearable device that integrates obstacle detection, multi-modal warning, head protection, and night light warning to improve the safety, autonomy, and comfort of visually impaired people when traveling. SUMMARY

[0004] Therefore, it is necessary to provide an intelligent vision auxiliary obstacle avoidance cap to at least solve the problems of limited detection range, high use cost, limited use environment, inability to provide all-weather protection, inconvenient wearing, single function, and lack of personalized adaptation of existing traditional assistive tools in the related art.

[0005] The embodiments of the present application provide an intelligent vision obstacle avoidance cap, which comprises: a cap body adopting a topological optimization lattice structure based on user head three-dimensional data customization and being integrally formed by an elastic material with night light characteristics through 3D printing technology; a sensing system comprising a plurality of ultrasonic sensors arranged at different positions of the cap body for detecting the distance and direction of obstacles; a control module electrically connected with the sensing system for processing sensor data and generating a control signal according to a preset logic; a warning module electrically connected with the control module for receiving the control signal and issuing at least one form of warning to the user; and a power module for supplying power to the sensing system, the control module, and the warning module.

[0006] In one of the embodiments, the early warning module comprises: a tactile early warning unit comprising one or more vibration motors arranged on the cap body corresponding to the positions of the ultrasonic sensors, for prompting the user of the positions and distances of the obstacles through vibrations of different intensities; a visual early warning unit comprising an RGB light ring arranged on the cap body, for issuing visual warnings to the user and the surrounding environment through light flickering or color changing; and an audible early warning unit comprising an audio player and a loudspeaker, for informing the user of the obstacle information through voice broadcasting or prompt sounds.

[0007] In one of the embodiments, the control module is configured to dynamically adjust the vibration frequency and / or intensity of the tactile early warning unit according to the distances of the obstacles detected by the ultrasonic sensors, and the closer the obstacles, the higher the vibration frequency and the stronger the intensity.

[0008] In one of the embodiments, the cap body comprises: an outer shell being the topologically optimized lattice structure; and a buffer inner container made of high-elastic and environment-friendly foam material and integrally formed with the outer shell through 3D printing, together constituting a shock-absorbing protective layer.

[0009] In one of the embodiments, the material with the noctilucent property is a light-storing noctilucent material which can emit light continuously for more than 12 hours in a dark environment after absorbing natural light or artificial light.

[0010] In one of the embodiments, the number of the ultrasonic sensors is four, which are accurately arranged at the front, left side, right side and back of the cap body, respectively, to form a detection array covering the main directions of the user.

[0011] In one of the embodiments, the core of the control module is an Arduino Nano development board and its expansion board, and the overall delay of the system in response to obstacles is less than 0.1 second.

[0012] In one of the embodiments, it further comprises a positioning and communication module connected with the control module, and the positioning and communication module comprises: a Beidou / GPS positioning chip for obtaining user location information; and a communication chip for sending the location information to the preset contacts when the user triggers the emergency help function.

[0013] In one of the embodiments, the positioning and communication module is further configured to interact with a mobile terminal APP to generate the travel trajectory of the user and the surrounding obstacle heat map, and provide route optimization suggestions for the user.

[0014] In one of the embodiments, the power module is a rechargeable lithium battery which supports fast charging through a USB-C interface and supports the continuous operation of the obstacle avoidance cap for more than 72 hours in a full power state.

[0015] Compared with the prior art, the intelligent visual auxiliary obstacle avoidance cap has the following remarkable beneficial effects. The present application has reasonable design and novel structure, realizes all-around stereoscopic perception through the multi-directional ultrasonic sensor array, completely eliminates the detection blind area, actively warns the collision risk, and provides comprehensive protection; the triple warning of vibration, voice and light is fused, and the vibration intensity and obstacle distance are linked, information transmission is efficient, and perception is intuitive; the cap body with lattice structure has ultralight weight and high impact resistance, and can be based on 3D printing customization of personal head shape, and is stable and comfortable to wear without compression; the luminous cap body can self-illuminate for a long time without power supply, significantly improves the passive safety of users in night environment, and avoids traffic accidents; the modular design reserves space for integrated positioning, rescue and trajectory recording and other advanced functions, and meets the future intelligent upgrading needs. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a whole structure schematic diagram of the embodiment of the present application; Fig. 2 It is a system module connection block diagram of the embodiment of the present application; Fig. 3 It is a cap body structure schematic diagram of the embodiment of the present application. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0018] It should be noted that when a component is referred to as "mounted on" another component, it can be directly mounted on the other component or there can be a middle component. When a component is referred to as "provided on" another component, it can be directly provided on the other component or there can be a middle component. When a component is referred to as "fixed on" another component, it can be directly fixed on the other component or there can be a middle component.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein only for the purpose of describing specific embodiments and is not intended to limit the present application. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0020] Please refer to Figs. 1 to 3The intelligent visual barrier avoidance cap of the embodiment of the application comprises: a cap body 100 adopting a topological optimization lattice structure customized based on three-dimensional data of a user's head and integrally formed by an elastic material with a noctilucence property through a 3D printing technology; a sensing system 200 comprising a plurality of ultrasonic sensors 21 arranged at different positions of the cap body 100 and used for detecting the distance and position of an obstacle; a control module 500 electrically connected with the sensing system 200 and used for processing sensor data and generating a control signal according to a preset logic; a warning module 300 electrically connected with the control module 500 and used for receiving the control signal and sending at least one form of warning to the user; and a power module 400 for supplying power to the sensing system 200, the control module 500 and the warning module 300.

[0021] In order to realize the construction of a multi-modal intelligent warning mechanism conforming to human intuition and improve the information perception efficiency, in some optional embodiments, the warning module 300 comprises: a tactile warning unit comprising one or more vibration motors 31 arranged on the cap body 100 and corresponding to the positions of the ultrasonic sensors 21, for prompting the user of the position and distance of the obstacle through vibrations of different intensities; a visual warning unit comprising an RGB light ring 32 arranged on the cap body 100, for sending a visual warning to the user and the surrounding environment through light flickering or color change; and an auditory warning unit comprising an audio player and a loudspeaker, for informing the user of the obstacle information through voice broadcast or prompt sound.

[0022] It should be noted that, in this way, the three warning modes of touch (vibration), hearing (voice) and vision (light) are innovatively integrated according to the characteristics of the visually impaired relying on hearing and touch. The system can provide accurate tactile guidance through vibration motors 31 at different positions according to the position and distance of the obstacle, for example, left vibration representing an obstacle on the left side; at the same time, the vibration frequency and intensity are intelligently enhanced as the distance approaches, providing the user with intuitive and gradient perception of the degree of danger. This multi-sensory coordinated warning mode avoids the risk of failure of a single mode in a noisy environment or a specific scene, ensuring that the warning information can be quickly and accurately received by the user with a response delay of less than 0.1 second.

[0023] In some optional embodiments, the control module 500 is configured to dynamically adjust the vibration frequency and / or intensity of the tactile warning unit according to the distance of the obstacle detected by the ultrasonic sensor 21, and the closer the obstacle, the higher the vibration frequency and the stronger the intensity.

[0024] In order to achieve the purpose of improving protection, comfort and portability, in some optional embodiments, the cap body 100 comprises: an outer shell, which is a topologically optimized lattice structure; a buffer liner made of high-elastic and environmentally friendly foam material, and integrally formed with the outer shell by 3D printing, together forming a shock-absorbing protective layer.

[0025] It should be noted that, by using the topological optimization and SLS 3D printing technology based on individual head three-dimensional scanning data, the "one person one cap" precise customization of the cap body is realized. The lattice structure realizes the perfect balance of lightweight (weight < 200g) and high impact resistance (can withstand 1.5 meter drop impact) on the basis of thousands of mechanical simulation optimizations. The integrally formed buffer liner ensures the comfort and stability of wearing, avoiding secondary injury or wearing resistance caused by equipment discomfort. Users do not need to hold additional equipment, realizing the true "wear and use", greatly improving the compliance of use and the autonomy of daily travel.

[0026] In some optional embodiments, the material with night light feature is a light-storing night light material, which can emit light for more than 12 hours in a dark environment after absorbing natural light or artificial light.

[0027] In order to realize the purpose of a full range, no dead angle active safety protection system, in some optional embodiments, the number of ultrasonic sensors 21 is four, which are accurately arranged in front, left, right and rear of the cap body 100, and together form a detection array covering the main directions of the user's body.

[0028] It should be noted that, the detection range of traditional guide cane is limited, and only the local area of the ground can be sensed. The application constructs a three-dimensional perception network covering the core activity area of the user's body by deploying high-precision ultrasonic sensor 21 array in front, back, left and right directions, with effective detection distance of 0.5 to 5 meters, which can detect obstacles from different directions in advance, such as low steps, pedestrians on the side, vehicles behind and walls in front, and fundamentally solves the problem of detection blind area of traditional equipment, reducing the risk of travel collision by more than 85%.

[0029] In some optional embodiments, the core of the control module 500 is an Arduino Nano development board and its expansion board, and the overall delay of the system in response to obstacles is less than 0.1 second.

[0030] In some optional embodiments, it further comprises a positioning and communication module connected with the control module 500, and the positioning and communication module comprises: a Beidou / GPS positioning chip for obtaining user location information; a communication chip for sending location information to the preset contact when the user triggers the emergency help function.

[0031] In some optional embodiments, the positioning and communication module is further configured to interact with a mobile terminal APP, generate a user's travel trajectory and a surrounding obstacle heat map, and provide route optimization suggestions for the user.

[0032] In some optional embodiments, the power module 400 is a rechargeable lithium battery, supports fast charging through a USB-C interface, and supports continuous operation of the obstacle-avoiding cap for more than 72 hours when fully charged.

[0033] It should be noted that, with low-power master control as the core, an extensible hardware platform is constructed. The current design has the advantages of long-lasting endurance (>72 hours) and convenient charging (USB-C). In addition, the system reserves interfaces for accessing positioning (Beidou / GPS), communication (4G / 5G), and voice interaction modules, laying a solid foundation for subsequent upgrading of advanced functions such as one-key distress call, trajectory recording, obstacle map construction, and voice control, enabling the product to continuously evolve and meet the growing intelligent needs of users.

[0034] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to encompass all variations falling within the meaning and scope of the equivalent elements of the claims. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0035] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. An intelligent vision-aided obstacle avoidance hat, characterized in that, The application relates to an obstacle-avoiding cap. The cap body is integrally formed by 3D printing technology from an elastic material with noctilucent properties and adopts a topology-optimized lattice structure customized based on three-dimensional data of a user's head. The sensing system comprises a plurality of ultrasonic sensors arranged at different positions of the cap body to detect the distance and position of an obstacle. The control module is electrically connected to the sensing system and is configured to process sensor data and generate a control signal according to a preset logic. The early warning module is electrically connected to the control module and is configured to receive the control signal and send at least one form of warning to the user. The power module supplies power to the sensing system, the control module and the early warning module.

2. The smart vision-aided obstacle avoidance hat of claim 1, wherein, The early warning module comprises: A tactile early warning unit comprising one or more vibration motors arranged on the cap body corresponding to the positions of the ultrasonic sensors, which is configured to prompt the user about the position and distance of the obstacle through vibrations of different intensities. A visual early warning unit comprising an RGB ring arranged on the cap body, which is configured to send visual warnings to the user and the surrounding environment through light flickering or color changing. An auditory early warning unit comprising an audio player and a loudspeaker, which is configured to inform the user about the obstacle information through voice broadcasting or prompt sound.

3. The smart vision-aided obstacle avoidance hat of claim 2, wherein, The control module is configured to dynamically adjust the vibration frequency and / or intensity of the tactile early warning unit according to the distance of the obstacle detected by the ultrasonic sensors, and the closer the obstacle, the higher the vibration frequency and the stronger the intensity.

4. The smart vision-aided obstacle avoidance hat of claim 1, wherein, The cap body comprises: An outer shell for the topology-optimized lattice structure; A buffer inner container made of high-elastic and environment-friendly foam material and integrally formed with the outer shell through 3D printing, which together constitute a shock-absorbing protective layer.

5. The smart vision-aided obstacle avoidance hat of claim 1, wherein, The material with noctilucent properties is a light-storing noctilucent material, which can emit light for more than 12 hours in a dark environment after absorbing natural light or artificial light.

6. The smart vision-aided obstacle avoidance hat of claim 1, wherein, The number of ultrasonic sensors is four, which are accurately arranged at the front, left side, right side and back of the cap body, respectively, to form a detection array covering the main directions of the user's body.

7. The smart vision-aided obstacle avoidance hat of claim 1, wherein, The core of the control module is an Arduino Nano development board and its expansion board, and the overall delay of the system in response to obstacles is less than 0.1 second.

8. The smart vision-aided obstacle avoidance hat of claim 1, wherein, The positioning and communication module is connected to the control module and comprises: A Beidou / GPS positioning chip for obtaining user location information; A communication chip for sending location information to a preset contact when the user triggers an emergency help function.

9. The smart vision-aided obstacle avoidance hat of claim 8, wherein, The positioning and communication module is further configured to interact with a mobile terminal APP to generate a user's travel trajectory and a surrounding obstacle heat map and provide route optimization suggestions for the user.

10. The smart vision-aided obstacle avoidance hat of claim 1, wherein, The power module is a rechargeable lithium battery, which supports fast charging through a USB-C interface and supports continuous operation of the obstacle-avoiding cap for more than 72 hours under full power.

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