Intelligent guide blind glasses and control system thereof

Abstract

An intelligent guide blind glasses and a control system thereof, comprising a glasses body, a radar detection assembly, a main controller, a vibration feedback assembly and a power supply assembly. The radar detection assembly is used for detecting obstacles in front of and on left and right sides of a wearer and transmitting collected information to the main controller. The main controller analyzes positions, types and motion states of the obstacles through an obstacle distance calculation, classification and distance grading control module and controls vibration motors in right and left nose clips to output vibrations with different frequencies and intensities according to analysis results. The vibration feedback assembly provides adjustable progressive tactile cues for the wearer through continuous, intermittent and pulse modes, thereby assisting visually impaired persons to perceive directions and distances of the obstacles and realizing safe obstacle avoidance. The system also supports power monitoring, personalized settings and remote data management and has the advantages of compact structure, comfortable wearing, rapid response, low power consumption and convenient use.

Description

Technical Field

[0001] This invention belongs to the field of intelligent wearable device technology, specifically referring to an intelligent guide glasses for the blind and its control system. Background Technology

[0002] Visually impaired individuals face numerous safety risks in their daily lives. While traditional guide tools such as white canes and guide dogs can assist walking to some extent, they have significant limitations. White canes primarily rely on tactile perception of obstacles, depending on the user's close-range detection. They typically only detect obstacles within a 1-2 meter range in front of the user, making it difficult to detect fast-moving pedestrians or vehicles, low obstacles, suspended objects, or obstacles in complex environments, posing potential safety hazards. Furthermore, prolonged use of canes can cause fatigue, impacting the user's efficiency and comfort. Guide dogs, while offering high levels of assistance, have long training periods, are costly, and are limited in certain public places, hindering their widespread applicability.

[0003] To overcome the limitations of traditional guide tools, some electronic assistive devices have been proposed, such as intelligent guide devices that use ultrasonic waves, infrared, lasers, or millimeter-wave radar for obstacle detection. These devices can achieve obstacle perception at a certain distance to some extent, but existing technologies still have several problems: First, detection accuracy is limited, especially in complex environments or multi-obstacle scenarios, making it difficult to accurately determine the distance, direction, and dynamic state of obstacles; second, vibration or sound feedback methods are limited, making it difficult for users to intuitively distinguish the direction and distance of obstacles, and failing to provide progressive, safe, and effective obstacle avoidance prompts; third, the devices are often bulky or not ergonomically designed, resulting in insufficient wearing comfort and fatigue from prolonged use; fourth, the system consumes a lot of power and has limited battery life, making it difficult to support long-term continuous use; fifth, they lack the ability to analyze the dynamic characteristics and movement trajectories of obstacles, making it impossible to provide predictive prompts for fast-moving obstacles, and easily leading to obstacle avoidance lag.

[0004] Current technologies cannot simultaneously meet the needs of visually impaired individuals for real-time performance, accuracy, comfort, and intelligence. In complex indoor environments (such as shopping malls and subway stations) and complex outdoor environments (such as streets and intersections), visually impaired individuals are still prone to collisions due to insufficient obstacle perception. Therefore, there is a need for intelligent guide glasses and control systems that can achieve real-time, multi-directional, multi-distance, and dynamic obstacle perception, while providing progressive tactile feedback through adjustable vibration modes, featuring a lightweight structure, low power consumption, and customizable settings, to improve the safety, independence, and convenience of travel for visually impaired individuals. Summary of the Invention

[0005] In view of the above situation and to overcome the shortcomings of the prior art, the present invention provides a smart guide glasses and its control system to at least partially solve the above technical problems.

[0006] The technical solution adopted by this invention is as follows: This invention proposes an intelligent guide glasses and its control system, including a glasses body, a radar detection component, a main controller, a vibration feedback component, and a power supply component; the vibration feedback component includes a right nose clip component and a left nose clip component, each of which is equipped with a vibration motor; the power supply component is used to supply power to the radar detection component, the main controller, and the vibration feedback component; the radar detection component is used to detect obstacles in front of and to the left and right of the wearer, the radar detection component is electrically connected to the main controller, the main controller is electrically connected to the vibration feedback component, and the main controller is configured to control the switching, vibration frequency, and vibration intensity of the vibration motor.

[0007] Furthermore, the vibration feedback component is configured to adjust the vibration frequency and vibration intensity of the vibration motors in the right and left nose clip components according to the distance of the obstacle. When the obstacle is closer to the wearer, the vibration frequency and vibration intensity of the vibration motors increase.

[0008] Furthermore, the radar detection component includes a forward radar unit and left and right lateral radar units, which are used to detect obstacles in front of and to the left and right of the wearer, respectively.

[0009] Furthermore, the main controller is equipped with an obstacle distance calculation module, which is used to calculate the actual distance between the obstacle and the wearer based on the signals received by the forward radar unit and the side radar unit.

[0010] Furthermore, the vibration feedback component includes a vibration mode selection module, which is used to switch different vibration modes according to the direction and distance of the obstacle. The vibration modes include continuous vibration mode, intermittent vibration mode and pulse vibration mode.

[0011] Furthermore, the power supply component is a rechargeable lithium battery, which is electrically connected to the main controller. The main controller is equipped with a power monitoring module, which monitors the battery level and triggers an alert signal when the battery is low.

[0012] Furthermore, the main controller is equipped with an obstacle detection module, which is used to receive and process obstacle information collected by the radar detection component. The vibration control module controls the vibration frequency and vibration intensity of the right nose clip component and the left nose clip component according to the processing result.

[0013] Furthermore, the main controller is equipped with an obstacle classification algorithm to distinguish between static and dynamic obstacles, and adjusts the vibration feedback strategy to adapt to different obstacle types.

[0014] Furthermore, the main controller is equipped with a distance classification control module, which divides the detected obstacle distance into multiple levels and outputs different vibration intensities and frequencies according to the levels to achieve progressive reminders.

[0015] Furthermore, the radar detection component, main controller, vibration feedback component, and power supply component are located on the glasses body.

[0016] Compared with the prior art, the present invention has the following advantages: Through forward and lateral radar units and optional infrared sensors, the system enables real-time detection and classification of obstacles around the wearer. Combined with obstacle distance grading and moving obstacle prediction algorithms, it can accurately identify the location, distance, and movement status of obstacles, thereby generating timely progressive tactile alerts. The miniature vibration motors in the right and left nose clips output vibrations of different frequencies and intensities based on the direction and distance of the obstacle, supporting multiple modes such as continuous, intermittent, and pulsed vibrations. This allows the wearer to intuitively judge the location and danger level of obstacles through touch, effectively assisting visually impaired individuals in walking safely. Attached Figure Description

[0017] Figure 1 This is a three-dimensional view of the intelligent guide glasses proposed in an embodiment of the present invention; Figure 2 This is a top view of the smart guide glasses proposed in an embodiment of the present invention.

[0018] Among them, 100 is the glasses body; 200 is the radar detection component; 300 is the main controller; 400 is the vibration feedback component; 401 is the right nose clip component; 402 is the left nose clip component; 403 is the vibration motor; and 500 is the power supply component.

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] Example 1: like Figures 1-2 As shown, this embodiment provides an intelligent guide glasses and its control system, mainly including a glasses body 100, a radar detection component 200, a main controller 300, a vibration feedback component 400, and a power supply component 500. The glasses body 100 is made of lightweight, high-strength plastic and metal composite material to ensure wearing comfort and stability. It features adjustable nose pads and temples to accommodate different user face sizes. The radar detection component 200 is located at the front of the glasses frame and includes a forward radar unit and left and right lateral radar units. The forward radar unit detects obstacles within a range of approximately 0.5 meters to 5 meters in front of the wearer, while the lateral radar units detect obstacles within a range of approximately 0.3 meters to 3 meters to the left and right. The radar unit uses a miniature millimeter-wave radar module, emitting high-frequency electromagnetic waves and receiving reflected waves. By measuring flight time and phase difference, it accurately calculates the distance, azimuth, and speed of obstacles. The radar detection component 200 is connected to the main controller 300 via a high-speed SPI interface or an I²C interface, with a data sampling frequency of 50~100Hz to ensure real-time obstacle detection capability.

[0023] The main controller 300 is an embedded microprocessor system, including an obstacle distance calculation module, an obstacle classification module, a distance grading control module, a vibration mode selection module, and a battery monitoring module. The obstacle distance calculation module receives radar data and uses triangulation and filtering algorithms to calculate the actual distance and direction between the obstacle and the wearer. The obstacle classification module determines whether an obstacle is a static obstacle (such as a wall or railing) or a dynamic obstacle (such as a pedestrian or vehicle) based on radar echo characteristics (such as speed, reflection intensity, and continuous frame changes), and predicts the trajectory of dynamic obstacles. The distance grading control module divides obstacle distances into several levels, for example, <0.5 meters is the danger level, 0.5~1 meter is the warning level, and 1~2 meters is the caution level, each level corresponding to different vibration intensities and frequencies. The battery monitoring module monitors the battery voltage in real time and triggers an sound or vibration to prompt the user to charge when the battery level is below 20%. The software within the main controller 300 allows adjustment of the threshold values ​​for each distance level, vibration mode, and frequency through configuration parameters, and supports remote upgrades or personalized settings.

[0024] The vibration feedback component 400 includes a right nose clip component 401 and a left nose clip component 402. Each nose clip houses a vibration motor 403 with a power of approximately 0.05~0.1W and a size of less than 10×5×5mm, providing sufficient tactile feedback without compromising wearing comfort. The main controller 300 controls the switching, frequency, and intensity of the vibration motor 403 via PWM or DAC signals to achieve progressive vibration feedback. When the obstacle is far away (1~2 meters), the vibration motor 403 alerts the user with low-frequency, low-intensity intermittent vibration; when the obstacle is 0.5~1 meter away, a continuous vibration mode is used with an increased vibration frequency; when the obstacle is less than 0.5 meters away, a high-frequency continuous vibration mode is used, enabling the wearer to immediately notice the obstacle's direction and take emergency avoidance measures. The vibration mode selection module automatically switches the vibration mode based on the obstacle's direction and distance, while also supporting manual mode settings by the user, such as a preferred pulse mode or intermittent mode. The vibration intensity of the right and left nose clips can be adjusted independently to reflect the distribution of obstacles in the left and right directions, allowing users to intuitively judge the location of obstacles through touch.

[0025] The power supply module 500 is a rechargeable lithium battery with a capacity of approximately 1000~1500mAh and a voltage of 3.7V~4.2V. It directly supplies power to the radar detection module 200, the main controller 300, and the vibration feedback module 400. The battery is removable via a magnetic plug-in interface for easy charging and replacement. Charging time is approximately 2 hours, and the battery life supports approximately 6~8 hours of continuous use. The power module is electrically connected to the main controller 300, which monitors power level changes in real time and controls power consumption management strategies. For example, when the power level is below a certain threshold, the radar sampling frequency can be automatically reduced, and the vibration alert strategy can be adjusted to extend the usage time.

[0026] The system's workflow is as follows: After the wearer puts on the smart guide glasses, the radar detection component 200 continuously scans the wearer's surrounding environment. Forward and lateral radar units collect obstacle echo signals at a frequency of 50-100Hz. Upon receiving the signals, the main controller 300 first calculates the actual distance and angle between the obstacle and the wearer using the obstacle distance calculation module. Then, the obstacle classification module determines the obstacle type and transmits the distance information to the distance classification control module. Based on the set distance threshold, the system selects an appropriate vibration mode and controls the vibration motors 403 of the right and left nose clips via PWM signals. The system can simultaneously detect and vibrate multiple obstacles. When obstacles are present both in front and to the side, the motors can use alternating or superimposed vibration modes to allow the wearer to perceive the direction and degree of danger of the obstacle. The entire system has a response delay of less than 50ms, enabling real-time responses to environmental changes and ensuring user safety.

[0027] This embodiment is applicable to various complex indoor and outdoor environments, including sidewalks, shopping malls, subway stations, and streets. The radar detection component 200 can accurately identify fixed and moving obstacles, and combined with the progressive prompts and multi-mode vibrations of the vibration feedback module, it assists visually impaired individuals in walking safely. The system has a compact structure, is lightweight, and has low power consumption. The main controller 300 can optimize algorithms and vibration strategies through software updates to meet the personalized needs of different users. Through the design of this embodiment, the smart guide glasses can achieve real-time obstacle perception, direction judgment, and distance reminders, providing wearers with stable and reliable travel assistance.

[0028] Example 2: The intelligent guide glasses and their control system provided in this embodiment have the same basic structure as those in Embodiment 1, including a glasses body 100, a radar detection component 200, a main controller 300, a vibration feedback component 400, and a power supply component 500. In this embodiment, the radar detection component 200 adopts a composite detection scheme combining millimeter-wave radar and infrared sensors. The forward radar unit is used to detect obstacles in front of the user within a range of 0.3 meters to 6 meters, and the side radar unit is used to detect obstacles on the left and right sides within a range of approximately 0.3 meters to 3 meters. Simultaneously, the infrared sensor is used to assist detection in low-light or bright-light environments. Data collected by the radar and infrared sensors is transmitted to the main controller 300 via an SPI bus or an I²C bus. The data sampling frequency can be automatically adjusted according to the environment, ranging from 50Hz to 200Hz, to adapt to high-speed dynamic environments and low-speed indoor environments.

[0029] In this embodiment, the main controller 300 adds a moving obstacle trajectory prediction module and a historical data caching module. The moving obstacle trajectory prediction module, based on velocity vector and acceleration data collected from continuous radar frames, predicts the obstacle's position within the next 1-2 seconds using Kalman filtering or particle filtering algorithms, thereby adjusting the vibration feedback strategy in advance and improving the wearer's obstacle avoidance reaction time. The obstacle classification algorithm categorizes obstacles into three types: static, slow-moving, and fast-moving, applying different vibration strategies to each type: low-frequency continuous vibration for static obstacles, intermittent vibration for slow-moving obstacles, and high-frequency pulse vibration for fast-moving obstacles. The distance grading control module divides obstacle distances into five levels: extremely close (<0.3 meters), near (0.3-0.5 meters), medium (0.5-1 meter), far (1-2 meters), and extremely far (>2 meters), corresponding to different vibration intensities and frequencies, achieving more refined tactile cues.

[0030] Both the miniature vibration motors 403 within the right nose clip assembly 401 and the left nose clip assembly 402 support PWM modulation. They can automatically adjust the vibration frequency (50~250Hz) and intensity (0~100% duty cycle) based on the signal output from the main controller 300. Users can also personalize settings via a mobile app, such as adjusting vibration sensitivity, enabling or disabling lateral vibration alerts, and selecting vibration modes (continuous, intermittent, pulse, or mixed). The system can process information on multiple obstacles simultaneously. The vibration intensities of the right and left nose clips can be automatically superimposed or alternately output based on the distribution of obstacles in the left-right direction, allowing users to accurately determine the location and threat level of obstacles through touch.

[0031] The power supply unit 500 is a rechargeable lithium battery with a capacity of approximately 1200mAh, supporting 6-8 hours of continuous operation. It also features a built-in low-power management mechanism, such as automatically reducing the radar sampling frequency and vibration intensity when the user is stationary or when there are few obstacles, thereby extending battery life. The power monitoring module monitors the battery voltage in real time, and when it drops below 20%, it reminds the user to charge via vibration of the right and left nose clips or through a mobile app.

[0032] This embodiment further adds a data communication module, which can connect to mobile terminals or cloud platforms via Bluetooth or Wi-Fi to achieve remote data transmission and management. The system can upload obstacle detection data, user habits, and vibration mode settings to achieve big data analysis and algorithm optimization. Simultaneously, the mobile terminal can be used to remotely adjust radar sensitivity, vibration strategies, and personalize vibration mode configurations, providing customized solutions for different users.

[0033] The workflow is as follows: After the wearer puts on the glasses, the radar detection component 200 and the infrared sensor begin to scan the environment in front and to the left and right in real time, and the collected distance, angle and speed information are transmitted to the main controller 300. The main controller 300 first obtains the precise location of the obstacle through the obstacle distance calculation module, the obstacle classification module determines the type and predicts the trajectory of the moving obstacle, and the distance classification control module calculates the vibration level. The vibration mode selection module generates a PWM signal based on the obstacle direction, type, distance and user settings, driving the right and left nose clip vibration motors 403 to achieve tactile cues of different frequencies and intensities. The user perceives the distance, direction and dynamic changes of obstacles through different vibration modes, effectively avoiding obstacles and ensuring walking safety. The system has a response delay of less than 50ms in complex environments (such as crowded streets or indoor shopping malls), and can provide real-time reminders to the user, assisting visually impaired people to walk safely.

[0034] Compared to Example 1, this embodiment adds multi-sensor fusion detection, dynamic obstacle prediction, personalized vibration adjustment, and remote data management functions, which can more precisely adapt to various complex scenarios, improve user safety and comfort, and at the same time have good scalability and remote upgrade capabilities.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A smart guide glasses control system, characterized in that: It includes a radar detection component (200), a main controller (300), a vibration feedback component (400), and a power supply component (500). The vibration feedback component (400) includes a right nose clip component (401) and a left nose clip component (402), and a vibration motor (403) is provided in both the right nose clip component (401) and the left nose clip component (402). The power supply assembly (500) is used to supply power to the radar detection assembly (200), the main controller (300) and the vibration feedback assembly (400); The radar detection component (200) is used to detect obstacles in front of and to the left and right of the wearer. The radar detection component (200) is electrically connected to the main controller (300). The main controller (300) is electrically connected to the vibration feedback component (400). The main controller (300) is configured to control the switching of the vibration motor (403), the vibration frequency, and the vibration intensity.

2. The intelligent guide glasses control system according to claim 1, characterized in that: The vibration feedback component (400) is configured to adjust the vibration frequency and vibration intensity of the vibration motor (403) in the right nose clip component (401) and the left nose clip component (402) according to the distance of the obstacle. When the obstacle is closer to the wearer, the vibration frequency and vibration intensity of the vibration motor (403) increase.

3. The intelligent guide glasses control system according to claim 2, characterized in that: The radar detection assembly (200) includes a forward radar unit and left and right side radar units, which are used to detect obstacles in front of and to the left and right of the wearer, respectively.

4. The intelligent guide glasses control system according to claim 3, characterized in that: The main controller (300) is equipped with an obstacle distance calculation module, which is used to calculate the actual distance between the obstacle and the wearer based on the signals received by the forward radar unit and the side radar unit.

5. The intelligent guide glasses control system according to claim 4, characterized in that: The vibration feedback component (400) includes a vibration mode selection module, which is used to switch different vibration modes according to the direction and distance of the obstacle. The vibration modes include continuous vibration mode, intermittent vibration mode and pulse vibration mode.

6. The intelligent guide glasses control system according to claim 5, characterized in that: The power supply component (500) is a rechargeable lithium battery. The power supply component (500) is electrically connected to the main controller (300). The main controller (300) is equipped with a power monitoring module, which is used to monitor the battery power and trigger an alert signal when the power is low.

7. The intelligent guide glasses control system according to claim 6, characterized in that: The main controller (300) is equipped with an obstacle detection module. The obstacle detection module is used to receive and process obstacle information collected by the radar detection component (200). The vibration control module controls the vibration frequency and vibration intensity of the right nose clip component (401) and the left nose clip component (402) according to the processing result.

8. The intelligent guide glasses control system according to claim 7, characterized in that: The main controller (300) is equipped with an obstacle classification algorithm to distinguish between static and dynamic obstacles and to adjust the vibration feedback strategy to adapt to different obstacle types.

9. The intelligent guide glasses control system according to claim 8, characterized in that: The main controller (300) is equipped with a distance classification control module, which divides the detected obstacle distance into multiple levels and outputs different vibration intensities and frequencies according to the levels to achieve progressive reminders.

10. A smart guide glasses for the blind, characterized in that, include: The glasses body (100) and the intelligent guide glasses control system according to any one of claims 1 to 9; The radar detection component (200), main controller (300), vibration feedback component (400) and power supply component (500) are located on the glasses body (100).

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