Hand-wearable blind guiding equipment

Abstract

The utility model provides hand-wearable blind guiding equipment. The hand-wearable blind guiding equipment comprises a packaging shell; the control panel is arranged in the packaging shell; the upper fixing plate is fixedly connected with the packaging shell, and one face of the upper fixing plate is a continuous arc-shaped curved face and used for being attached to one side of an arm; the lower fixing plate is detachably connected with the upper fixing plate, and the face, facing the upper fixing plate, of the lower fixing plate is a continuous arc-shaped curved face and used for being attached to the other side of the arm; the power supply module is arranged in the packaging shell, is electrically connected with the control panel and is used for supplying power to the control panel; the holder is rotatably mounted on one side of the packaging shell; the depth camera is rotatably connected with the holder, and the holder is used for keeping the stability of the depth camera; the earphone is in communication connection with the control panel and is used for playing voice prompts; and the more than two vibration fingerstalls are in communication connection with the control panel, and the vibration fingerstalls are used for sending vibration signals. The problems that in the prior art, visually impaired people are inconvenient to go out, and an ultrasonic sensor scheme is not high in reliability are solved.

Description

Technical Field

[0001] This utility model relates to the field of guide equipment technology, specifically to a wearable guide device for the blind. Background Technology

[0002] With societal development, transportation remains a significant and pressing issue for visually impaired individuals. Currently, they largely rely on the assistance of family and friends, or traditional tools like guide dogs and canes, to get around. However, with continuous technological advancements, numerous assistive devices in various forms are entering the research field. Electronic assistive devices, in particular, offer the potential to significantly compensate for the visual impairments of visually impaired individuals, promising a safer and more convenient travel experience.

[0003] Among the many electronic guide assistive devices, wearable guide assistive devices have received widespread attention and research and development due to their portability and comfort. Among them, wearable guide assistive devices based on ultrasonic sensor solutions for obstacle detection, such as ultrasonic wristbands and ultrasonic belts, have already appeared in the market or in the research and development stage.

[0004] However, existing wearable guide assistive devices for the blind that use ultrasonic sensors have revealed significant shortcomings in practical applications. In terms of perception capabilities, their ability to detect obstacles is poor, often failing to accurately and comprehensively detect various obstacles in the surrounding environment, especially those with irregular shapes, special materials, or in complex environments, which can easily lead to situations where they are difficult to detect.

[0005] In terms of detection accuracy, this solution also has shortcomings. The accuracy of key information such as the distance and direction of obstacles acquired is not high enough, making it difficult for visually impaired individuals to make accurate travel judgments and action decisions based on this inaccurate information. More importantly, this solution is prone to false detections and missed detections. False detections can cause the device to convey incorrect obstacle warnings to visually impaired individuals, causing unnecessary anxiety or incorrect actions; while missed detections may cause visually impaired individuals to completely ignore real obstacles, thus posing a serious threat to their travel safety.

[0006] In conclusion, given the numerous unresolved issues in obstacle detection of existing wearable guide assistive devices based on ultrasonic sensors, there is an urgent need to develop a new technical solution to improve the accuracy of obstacle detection in such devices, thereby better assisting visually impaired individuals in traveling safely and conveniently. Utility Model Content

[0007] The purpose of this invention is to overcome the above-mentioned technical deficiencies and provide a wearable hand-held guide device to solve the technical problems of inconvenience for visually impaired people to travel and unclear guidance from related devices in the prior art.

[0008] To achieve the above-mentioned technical objectives, the present invention provides a wearable hand-held guide device for the visually impaired, comprising:

[0009] Encapsulation shell;

[0010] The control board is housed within the encapsulation shell;

[0011] An upper fixing plate is fixedly connected to the encapsulation shell. One side of the upper fixing plate is a continuous arc-shaped curved surface, which is used to fit one side of the arm.

[0012] The lower fixing plate is detachably connected to the upper fixing plate. The side of the lower fixing plate facing the upper fixing plate is a continuous arc-shaped surface, which is used to fit the other side of the arm.

[0013] A power module is disposed within the package housing. The power module is electrically connected to the control board and is used to supply power to the control board.

[0014] A gimbal is rotatably mounted on one side of the encapsulation shell, and the gimbal is electrically connected to the control board.

[0015] A depth camera is rotatably connected to the gimbal, which is used to maintain the stability of the depth camera;

[0016] The earphones are communicatively connected to the control board and are used to play voice prompts.

[0017] Two or more vibrating finger sleeves are communicatively connected to the control board, and the vibrating finger sleeves are used to emit vibration signals.

[0018] Compared with the prior art, the beneficial effects of this utility model include:

[0019] This utility model relates to a wearable guide device for the visually impaired, where both the upper and lower fixing plates have continuous curved surfaces facing the arm. This design allows for a perfect fit to the arm, making the device more stable during wear and reducing the possibility of the device shaking affecting its effectiveness. Furthermore, the ergonomic design greatly enhances wearing comfort, ensuring that visually impaired individuals do not experience significant discomfort during prolonged use.

[0020] The upper and lower fixing plates are detachably connected. This feature allows visually impaired users to easily adjust the tightness of the device according to the size of their arms, enhancing the device's versatility and adaptability to meet the needs of different groups.

[0021] The gimbal is rotatably mounted on one side of the enclosure and rotatably connected to the depth camera. The gimbal can flexibly adjust the angle and orientation of the depth camera according to actual conditions, maintaining its stability. Even if the visually impaired person's body sways or their posture changes while walking, the depth camera can maintain a stable shooting state, accurately capturing depth information of the surrounding environment and providing reliable data support for subsequent obstacle detection and analysis. As the core detection component, the depth camera can accurately acquire three-dimensional information of the surrounding environment. Compared to traditional ultrasonic sensors, it has higher accuracy and stronger perception capabilities in obstacle detection. The depth camera can clearly identify obstacles of different shapes, materials, and distances, effectively reducing false detections and missed detections, and greatly improving the safety of visually impaired people traveling.

[0022] The headset communicates with the control panel and can play voice prompts. When the depth camera detects an obstacle, the control panel analyzes and processes the detection information and provides clear and unambiguous voice prompts to the visually impaired person through the headset, informing them of key information such as the obstacle's location, distance, and type. This voice feedback method is intuitive and easy to understand, allowing the visually impaired person to promptly understand changes in their surroundings and make accurate action decisions. It is equipped with two or more vibrating finger sleeves that communicate with the control panel. The vibrating finger sleeves emit vibration signals of different intensities and frequencies depending on the specific obstacle. For example, when the obstacle is close, the vibration intensity increases and the frequency increases; when the obstacle is far away, the vibration intensity decreases and the frequency decreases. This vibration feedback method provides the visually impaired person with an additional sensory pathway, enabling them to more intuitively perceive changes in their surroundings and further enhancing their obstacle perception ability.

[0023] The control board and power module are both housed within a casing. This integrated design not only protects the internal electronic components from external interference and damage but also improves the overall stability and reliability of the device. Simultaneously, the casing facilitates portability and use, allowing visually impaired individuals to easily wear the device on their hands for convenient access to guide aids anytime, anywhere. The various components of the device, such as the control board, power module, pan-tilt unit, depth camera, earpiece, and vibrating finger sleeve, all employ a modular design, working collaboratively via electrical or communication connections. This modular design facilitates assembly, maintenance, and upgrades; if a component malfunctions, only the corresponding module needs to be replaced, reducing maintenance costs and complexity.

[0024] According to some embodiments of this utility model, the number of vibration finger sleeves is three.

[0025] According to some embodiments of the present invention, the upper fixing plate is provided with a plurality of adhesive tape holders, and the lower fixing plate is provided with a plurality of adhesive tape holders. The adhesive tape holders are used to pass through adhesive tape to connect the upper fixing plate and the lower fixing plate.

[0026] According to some embodiments of the present invention, the earphone is wired or wirelessly connected to the control board.

[0027] According to some embodiments of this utility model, the vibration finger sleeve is wired or wirelessly connected to the control board.

[0028] According to some embodiments of the present invention, at least two directional finger sleeves and one intensity finger sleeve are included. The two side vibration finger sleeves are directional finger sleeves used to indicate direction, and the middle vibration finger sleeve is an intensity finger sleeve used to guide the movement step length.

[0029] According to some embodiments of the present invention, the gimbal includes: a first motor and a second motor, the first motor being rotatably connected to one side of the encapsulation shell, and the second motor being rotatably connected to the first motor via a rotating arm. The first motor is used to control the depth camera to rotate in a first direction, and the second motor is used to control the depth camera to rotate in a second direction.

[0030] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0031] The above and / or additional aspects and advantages of this invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein the abstract drawings are to be completely consistent with one of the drawings in the specification:

[0032] Figure 1 This is a structural diagram of a wearable guide device for the blind provided in one embodiment of the present invention.

[0033] Figure 2 A PID algorithm diagram for camera gimbal angle balance control of a wearable guide device for the blind provided in one embodiment of this utility model.

[0034] Explanation of reference numerals in the attached drawings: 101, housing; 102, control board; 103, upper fixing plate; 104, lower fixing plate; 105, gimbal; 106, depth camera; 107, vibration finger sleeve; 108, cover plate. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0036] It should be noted that although functional modules are divided in the system diagram and the logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the system or the order in the flowchart. The terms "first," "second," etc., in the specification, claims, and the aforementioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0037] Reference Figures 1 to 2 , Figure 1 This is a structural diagram of a wearable guide device for the blind provided in one embodiment of the present invention. Figure 2 A PID algorithm diagram for camera gimbal angle balance control of a wearable guide device for the blind provided in one embodiment of this utility model.

[0038] In one embodiment, the wearable hand-held guide device for the blind includes: a housing 101 with a cover plate 108 on top; a control board 102 disposed within the housing 101; an upper fixing plate 103 fixedly connected to the housing 101, one side of the upper fixing plate 103 being a continuous arcuate surface for conforming to one side of the arm; a lower fixing plate 104 detachably connected to the upper fixing plate 103, the side of the lower fixing plate 104 facing the upper fixing plate 103 being a continuous arcuate surface for conforming to the other side of the arm; and a power module disposed within the housing 101. Inside, the power module is electrically connected to the control board 102 and is used to supply power to the control board 102; the gimbal 105 is rotatably mounted on one side of the enclosure 101 and is electrically connected to the control board 102; the depth camera 106 is rotatably connected to the gimbal 105 and is used to maintain the stability of the depth camera 106; the earphone is communicatively connected to the control board 102 and is used to play voice prompts; two or more vibrating finger sleeves 107 are communicatively connected to the control board 102 and are used to emit vibration signals.

[0039] In the current field of assistive devices for the visually impaired, traditional ultrasonic sensors suffer from poor accuracy, making them difficult to implement effective navigation in complex environments. While wearable assistive devices using depth cameras (106) offer certain advantages, they also have several shortcomings. For example, the device is prone to shaking during walking, significantly reducing the quality of environmental information acquired by the camera and compromising the accuracy of obstacle detection. Furthermore, users must actively maintain a stable wearing position to keep the camera relatively stable, which undoubtedly increases the difficulty of use. Additionally, changing the camera's orientation often requires turning the entire body, which is extremely inconvenient when exploring the surrounding environment. This inconvenience is further amplified for devices with object recognition capabilities. Moreover, in terms of interaction methods, simple vibration interaction cannot fully utilize the image information acquired by the camera, while simple voice interaction increases the auditory burden on visually impaired individuals, causing information confusion and affecting the overall usability.

[0040] In comparison, the wearable hand-held navigation device involved in this application exhibits several outstanding advantages. First, it abandons the less accurate ultrasonic sensor and selects a high-precision depth camera 106 as the sensing sensor, enabling accurate perception of the surrounding environment and providing reliable navigation guidance for visually impaired individuals even in complex environments. Second, considering the stability issues of the depth camera 106 during use, the navigation aid is cleverly designed on the arm, and a smart gimbal 105 is used to maintain the camera's directional stability. In this way, users can easily adjust the camera's orientation simply by rotating their arm, easily exploring the environment without needing to consciously stabilize the arm while wearing the device, thus freeing up the arm and greatly improving the user experience. Finally, the interaction method has been optimized and innovated, designing a multi-sensory interaction method combining vibration and voice. Obstacle avoidance commands are transmitted to visually impaired individuals through an intuitive and efficient vibration array, while the names of key objects are conveyed through concise voice announcements. This fully utilizes the image information acquired by the camera and avoids the drawbacks of a single interaction method, ensuring the real-time performance and efficiency of the device for visually impaired individuals when using it. In summary, this application addresses the shortcomings of existing technologies in several key aspects, providing visually impaired individuals with a safer, more convenient, and more efficient guide assist experience.

[0041] This application fixes the depth camera 106 to a gimbal bracket 105, which houses a brushless DC motor. The rotation of the brushless motor controls the pitch angle to maintain stability. When the device is worn on the arm, it swings naturally with the user's arm during walking. However, by using a PID control algorithm to control the brushless motor's rotation and adjust the pitch angle, the depth camera 106 can be kept stable in the forward direction. The input to the entire camera gimbal system is the given desired pitch angle value θ. desiredThe system output is the actual pitch angle value θ, but for a PID controller, the input is the pitch angle error e = θ. desired -θ, the controller output is the voltage signal V that controls the brushless DC motor. The actual angle θ is fed back to the PID controller to form a closed-loop control.

[0042] In one embodiment, the wearable hand-held guide device for the blind includes: a housing 101; a control board 102 disposed within the housing 101; an upper fixing plate 103 fixedly connected to the housing 101, one side of the upper fixing plate 103 being a continuous arcuate surface for conforming to one side of the arm; a lower fixing plate 104 detachably connected to the upper fixing plate 103, the side of the lower fixing plate 104 facing the upper fixing plate 103 being a continuous arcuate surface for conforming to the other side of the arm; and a power module disposed within the housing 101. The block is electrically connected to the control board 102, and the power module supplies power to the control board 102; the gimbal 105 is rotatably mounted on one side of the enclosure 101 and is electrically connected to the control board 102; the depth camera 106 is rotatably connected to the gimbal 105, and the gimbal 105 is used to maintain the stability of the depth camera 106; the earphone is communicatively connected to the control board 102 and is used to play voice prompts; two or more vibration finger sleeves 107 are communicatively connected to the control board 102 and are used to emit vibration signals. There are three vibration finger sleeves 107: the two side vibration finger sleeves are directional finger sleeves used to indicate direction, and the middle vibration finger sleeve is an intensity finger sleeve used to guide the movement step length.

[0043] Equipped with directional lanyards on both sides, these devices provide clear and intuitive directional guidance for visually impaired individuals. When traveling, visually impaired people often need to accurately know which direction to walk or turn. These directional lanyards use vibration as a sensory aid; for example, a vibration on the left lanyard indicates a left turn, and a vibration on the right lanyard indicates a right turn. This acts like a "signal" in the dark, allowing visually impaired individuals to more accurately follow a predetermined route or move towards their destination, effectively preventing them from getting lost or straying into dangerous areas due to a lack of direction. Whether on familiar daily routes or exploring unfamiliar environments, the directional lanyards play a crucial role. On the street, they guide visually impaired individuals across the road and onto the correct street; indoors, they help them find the correct rooms and passageways, greatly enhancing their autonomy and accuracy in different scenarios.

[0044] The central vibration index finger guides stride length, a clever and practical design. Visually impaired individuals, unlike sighted people, struggle to judge distances and appropriate stride lengths based on visual perception. The index finger conveys this information through varying vibration intensities: stronger vibrations indicate closer proximity to obstacles, requiring shorter strides; weaker vibrations suggest a safer distance, allowing for longer strides. This feedback allows visually impaired individuals to adjust their stride length accordingly, better control their walking rhythm, reduce the risk of collisions, and ensure safety. Accurate stride guidance not only helps avoid danger but also improves walking efficiency. Visually impaired individuals no longer need to take excessively small steps or frequently collide with obstacles due to excessively long strides, making walking more natural and fluid. This enhances overall comfort while ensuring safety, allowing them to move more confidently and comfortably in various environments.

[0045] The design of the three vibrating finger cots 107 works in conjunction with other information feedback methods such as voice prompts. Voice prompts focus on conveying macroscopic environmental information such as the presence of surrounding objects and the location of obstacles, while the vibrating finger cots 107 focus on specific directional guidance and step control—microscopic levels of action guidance. This multi-sensory approach provides comprehensive travel assistance for visually impaired individuals, enabling them to receive information through multiple senses simultaneously, understand their surroundings more deeply and accurately, make the most appropriate action decisions, and comprehensively improve the safety and convenience of their travel. For visually impaired individuals, relying on a single sensory method to obtain information can be limited. The tactile vibration provided by the vibrating finger cots 107 enriches their means of perceiving external information. In complex environments, additional information perception methods provide additional travel security. This multi-sensory collaborative design helps visually impaired individuals better cope with various possible situations and better integrate into daily travel scenarios.

[0046] This application achieves the two key functions of direction guidance and step guidance with only three vibrating finger sleeves (107), demonstrating a clear and straightforward design logic. Visually impaired individuals do not need to spend excessive effort learning complex vibration rules or memorizing numerous vibration signal meanings; they can quickly learn and master the device, lowering the barrier to entry and enabling them to benefit from it more quickly and sooner. The simple design ensures practicality while reducing overall device complexity. Reducing unnecessary components and complex functional integration makes quality and cost control easier during manufacturing, while also improving stability and reliability, reducing the probability of failure due to complex structures. This creates favorable conditions for the widespread adoption and long-term use of the device from multiple perspectives.

[0047] In one embodiment, the wearable hand-held guide device for the blind includes: a housing 101; a control board 102 disposed within the housing 101; an upper fixing plate 103 fixedly connected to the housing 101, one side of the upper fixing plate 103 being a continuous arcuate surface for conforming to one side of the arm; a lower fixing plate 104 detachably connected to the upper fixing plate 103, the side of the lower fixing plate 104 facing the upper fixing plate 103 being a continuous arcuate surface for conforming to the other side of the arm; and a power module disposed within the housing 101. The block is electrically connected to the control board 102, and the power module is used to supply power to the control board 102; the pan-tilt unit 105 is rotatably mounted on one side of the enclosure 101, and the pan-tilt unit 105 is electrically connected to the control board 102; the depth camera 106 is rotatably connected to the pan-tilt unit 105, and the pan-tilt unit 105 is used to maintain the stability of the depth camera 106; the earphone is communicatively connected to the control board 102, and the earphone is used to play voice prompts; two or more vibrating finger sleeves 107 are communicatively connected to the control board 102, and the vibrating finger sleeves 107 are used to emit vibration signals. The upper fixing plate 103 is provided with multiple adhesive tape holders, and the lower fixing plate 104 is provided with multiple adhesive tape holders. The adhesive tape holders are used to pass through adhesive tape to connect the upper fixing plate 103 and the lower fixing plate 104.

[0048] Both the upper fixing plate 103 and the lower fixing plate 104 are equipped with multiple adhesive tape holders, allowing users to flexibly select the appropriate tape holder to thread through the adhesive tape for secure fastening, based on the actual thickness of their arms. This means visually impaired individuals can easily adjust the tightness of the device, finding the most comfortable and snug fit regardless of whether their arms are thin or thick. This ensures the device won't wobble due to being too loose and affecting usability, nor will it cause discomfort due to being too tight, greatly enhancing its adaptability to different users. Connecting the upper and lower fixing plates 104 using adhesive tape threaded through the tape holders is extremely simple. When visually impaired individuals need to wear the device for outings, there are no complicated steps or additional tools required; they simply thread the tape through the corresponding tape holder and secure it. This allows for quick and time-saving device donning, which is especially important in emergency travel or frequently used scenarios.

[0049] Furthermore, the headphones are connected to the control board 102 via wired or wireless connection, and the vibrating finger sleeve 107 is connected to the control board 102 via wired or wireless connection.

[0050] Wired Connection: The headphones and control board 102 can be connected via a common 3.5mm audio jack or USB interface using an audio cable. For example, the 3.5mm audio jack is highly versatile, supporting many headphones, allowing users to choose compatible headphones based on their needs. The USB interface, in addition to transmitting audio signals, may also provide power and other functions, making it suitable for multi-functional headphone devices. Custom Interface Connection: Depending on the device's design, a custom-designed interface can be used to connect the headphones and control board 102. This interface ensures signal transmission quality while maintaining a cleaner, more integrated appearance, avoiding the space requirements and potential compatibility issues associated with too many universal interfaces. However, this would limit the choice of headphones to those compatible with the specific device.

[0051] The vibrating finger sleeve 107 is connected to the control board 102 via two wired connections: 1. Ribbon cable connection: Since the vibrating finger sleeve 107 typically needs to transmit control signals to achieve vibrations of different intensities and frequencies, it can be connected to the control board 102 using a ribbon cable. Ribbon cables generally have multiple wires, allowing for the simultaneous transmission of multiple signals. They are also relatively flexible and bendable, facilitating wiring within the device and adapting to the device's structure and the characteristics of human arm movements, preventing damage to the wiring due to arm bending or other actions. 2. Flat flexible cable (FPC) connection: FPC is also a common choice. It is lightweight, flexible, and space-saving, making it ideal for use in space-constrained scenarios like wearable hand devices where adaptation to human movement is crucial. By connecting one end of the FPC to the control circuit of the vibrating finger sleeve 107 and the other end to the corresponding interface on the control board 102, stable and reliable signal transmission can be achieved.

[0052] Wireless Connection Methods: The headphones and control board 102 can connect wirelessly via Bluetooth: This is currently the most common wireless audio transmission method. By integrating a Bluetooth module onto the control board 102, it can pair with Bluetooth-enabled headphones. Bluetooth technology features low power consumption, a moderate transmission distance (generally around 10 meters, meeting the needs of everyday use), and good compatibility, enabling convenient high-quality audio signal transmission so that visually impaired individuals can clearly receive voice prompts. Alternatively, the headphones and control board 102 can connect wirelessly via radio frequency (RF): This uses RF signals for communication. Its transmission distance may be longer than Bluetooth, and it also has advantages in anti-interference capabilities in complex environments. However, RF devices may be slightly more expensive and require dedicated RF transmitter and receiver modules for matching. But in specific use cases, such as in large spaces with many Bluetooth interference sources, RF connection can be an effective wireless connection option for users.

[0053] The vibration finger sleeve 107 can wirelessly connect to the control board 102 via Bluetooth Low Energy (BLE): Considering that the vibration finger sleeve 107 primarily receives control commands from the control board 102 to achieve its vibration function, its data transmission requirements are not particularly high, but it is sensitive to power consumption. BLE technology is therefore very suitable. It can achieve stable short-range wireless communication with low power consumption, accurately transmitting commands from the control board 102 to the vibration finger sleeve 107. This ensures that the vibration finger sleeve 107 can emit vibration signals as needed, while also extending the overall battery life of the device and reducing charging frequency. Alternatively, the vibration finger sleeve 107 can wirelessly connect to the control board 102 via Near Field Communication (NFC): At close range (typically a few centimeters to tens of centimeters), NFC enables quick and convenient pairing between devices. When the vibration finger sleeve 107 approaches the control board 102 to a certain distance, it can automatically complete the connection configuration, making operation simple and convenient. However, the short transmission distance of NFC limits its application scenarios. It is generally suitable for initial connection configuration and other operations when using wearable devices, and then maintaining the connection for data transmission, providing a convenient wireless connection method for device use.

[0054] Furthermore, the gimbal 105 includes a first motor and a second motor. The first motor is rotatably connected to one side of the housing 101, and the second motor is rotatably connected to the first motor via a rotating arm. The first motor is used to control the depth camera 106 to rotate in a first direction, and the second motor is used to control the depth camera 106 to rotate in a second direction.

[0055] The first motor controls the depth camera 106 to rotate in a first direction, while the second motor controls its rotation in a second direction. This design allows the depth camera 106 to flexibly adjust its angle in two different directions. When visually impaired individuals use guide devices, this feature of the gimbal 105 enables the depth camera 106 to quickly and accurately scan the surrounding environment, comprehensively acquiring environmental information from different positions and angles, effectively reducing blind spots. For example, in complex street environments, the camera can promptly capture information about obstacles, signs, etc., on both sides, above, and diagonally of the street, providing visually impaired individuals with a more comprehensive environmental perception. As the surrounding environment constantly changes during a visually impaired person's walk, the gimbal 105 can adjust the direction of the depth camera 106 in real time according to the actual situation. When an object that may affect walking is detected ahead, the camera can be quickly rotated to observe and analyze the object in more detail, ensuring that the visually impaired person understands the object's specific details, such as size, distance, and movement trend, thereby making more accurate decisions.

[0056] Traditional guide vandals may require visually impaired individuals to significantly rotate their bodies to change the camera's orientation, which is inconvenient and inefficient. However, this gimbal 105 design allows visually impaired individuals to easily change the camera's shooting direction simply by using a motor to rotate the camera, without needing to rotate their bodies significantly. This reduces the burden on their bodies, making it especially convenient to use in confined spaces or situations where mobility is limited. The first and second motors can quickly respond to control commands, enabling rapid rotation of the depth camera 106. When a visually impaired individual needs to obtain environmental information in a specific direction, the gimbal 105 can quickly adjust the camera to the appropriate position to acquire the necessary information, improving information acquisition efficiency and enabling visually impaired individuals to more effectively handle various travel scenarios.

[0057] The motor precisely controls the rotation angle of the depth camera 106, ensuring its stability during rotation. Compared to manual adjustment or simple mechanical structures, motor control provides more accurate camera positioning, avoiding inaccurate environmental information acquisition due to angular deviations. During shooting, a stable camera angle helps acquire clear and accurate depth images, providing reliable data support for subsequent obstacle detection and environmental analysis. When visually impaired individuals walk, body vibrations can affect the shooting performance of the depth camera 106. The motor structure of the gimbal 105 can buffer these vibrations to some extent. By fine-tuning the camera's position and angle, the impact of vibration on image quality is reduced, ensuring the depth camera 106 can operate continuously and stably, providing high-quality environmental information.

[0058] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the above embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of the present utility model.

[0059] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A wearable hand-held guide device for the visually impaired, characterized in that, include: Encapsulation shell; The control board is housed within the encapsulation shell; An upper fixing plate is fixedly connected to the encapsulation shell. One side of the upper fixing plate is a continuous arc-shaped curved surface, which is used to fit one side of the arm. The lower fixing plate is detachably connected to the upper fixing plate. The side of the lower fixing plate facing the upper fixing plate is a continuous arc-shaped surface, which is used to fit the other side of the arm. A power module is disposed within the package housing. The power module is electrically connected to the control board and is used to supply power to the control board. A gimbal is rotatably mounted on one side of the encapsulation shell, and the gimbal is electrically connected to the control board. A depth camera is rotatably connected to the gimbal, which is used to maintain the stability of the depth camera; The earphones are communicatively connected to the control board and are used to play voice prompts. Two or more vibrating finger sleeves are communicatively connected to the control board, and the vibrating finger sleeves are used to emit vibration signals.

2. The wearable hand-held guide device for the visually impaired according to claim 1, characterized in that, The number of vibrating finger sleeves is 3.

3. The wearable hand-held guide device for the visually impaired according to claim 1, characterized in that, The upper fixing plate is provided with multiple adhesive tape holders, and the lower fixing plate is provided with multiple adhesive tape holders. The adhesive tape holders are used to pass through adhesive tape to connect the upper fixing plate and the lower fixing plate.

4. The wearable hand-held guide device for the visually impaired according to claim 1, characterized in that, The earphones are connected to the control board via a wired or wireless connection.

5. The wearable hand-held guide device for the visually impaired according to claim 1, characterized in that, The vibration finger sleeve is connected to the control board via wired or wireless connection.

6. The wearable hand-held guide device for the visually impaired according to claim 2, characterized in that, Two of the vibration finger sleeves are directional finger sleeves used to indicate direction, and one of the vibration finger sleeves is an intensity finger sleeve used to guide the movement step length.

7. The wearable hand-held guide device for the visually impaired according to claim 1, characterized in that, The gimbal includes a first motor and a second motor. The first motor is rotatably connected to one side of the encapsulation shell, and the second motor is rotatably connected to the first motor via a rotating arm. The first motor is used to control the depth camera to rotate in a first direction, and the second motor is used to control the depth camera to rotate in a second direction.

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