A head-mounted video capture device

Abstract

This utility model discloses a head-mounted video acquisition device, including a guide cap. The guide cap includes an inner support layer and a front flap layer. The guide cap and the front flap layer are covered with a fabric layer. A chin strap is fixed to the inner side of the inner support layer. A acquisition device controller, an infrared sensor, and a positioning module are fixed to the bottom of the front flap layer. The acquisition device controller integrates a navigation processing unit and is electrically connected to the positioning module. This utility model adopts a flap cap shape, and the inner support layer is made of high-strength and lightweight polycarbonate material. A ventilation slot is opened at the top. Combined with the microporous structure of the fabric layer, it is lighter than a helmet-style device. At the same time, the arc-shaped mounting panel and the partitioned fixing design of the inner support layer provide a stable mounting foundation for components such as the visual acquisition module and the acquisition device controller, which not only conforms to daily wearing habits but also ensures the stability of the navigation perception function.

Description

Technical Field

[0001] This utility model mainly relates to the field of guide assistive devices, specifically a head-mounted video acquisition device. Background Technology

[0002] Guide assistive devices refer to various tools designed specifically for visually impaired people, which help them move safely, avoid obstacles, and travel independently by sensing the environment, transmitting information, or providing guidance.

[0003] Currently, the main assistive devices commonly used by visually impaired people are guide dogs, guide canes, and wearable guide devices. However, in practical applications, there are several shortcomings. First, the training cost of guide dogs is high, the training period is long, and the number that can be equipped is very small. Moreover, there are many limitations in the environment in which they can be used, such as the inability to enter certain public places. Guide canes cannot provide destination guidance and can only provide near-distance obstacle warnings, which is difficult to meet the needs of independent travel in complex scenarios. Some wearable guide devices, such as helmet-style devices, have a rigid shell and a sealed structure that results in poor breathability, especially in summer. Furthermore, the helmet-style shape is not compatible with daily commuting and social clothing, resulting in low user willingness to wear them. Utility Model Content

[0004] This utility model addresses the problem that existing technical solutions are too simplistic by providing a head-mounted video acquisition device. This device solves the technical problems mentioned in the background, such as high training costs for guide dogs, limited adaptability to various scenarios, and insufficient comfort and poor daily adaptability of some wearable guide dogs.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A head-mounted video acquisition device includes a guide cap, which comprises an inner support layer and a front flap layer. The guide cap and the front flap layer are covered with a fabric layer. A chin strap is fixed to the inner side of the inner support layer. A acquisition device controller, an infrared sensor, and a positioning module are fixed to the bottom of the front flap layer. The acquisition device controller integrates a navigation processing unit and is electrically connected to the positioning module. A visual acquisition module is fixed to the top of the front flap layer. A conductive speaker is fixed to one side of the guide cap.

[0007] Furthermore, the fabric layer completely covers the front duckbill layer, covering its upper surface, lower surface and side edges. The fabric layer only covers the outer ring area of ​​the inner support layer, and the top of the inner support layer has multiple ventilation slots.

[0008] Furthermore, the fabric layer is a multi-layer composite structure, comprising, from the inside out, a textile base layer for providing comfort, a waterproof layer for providing a waterproof barrier, and an easy-to-wipe layer with low adhesion on the surface. The top of the fabric layer has a microporous structure above the corresponding internal support layer.

[0009] Furthermore, mounting panels are fixed to the top and bottom of the front duckbill layer, respectively. The top mounting panel is used to fix the vision acquisition module, and the bottom mounting panel is used to fix the acquisition device controller, infrared sensor and positioning module. The bottom mounting panel has an arc-shaped fitting structure and fits correspondingly to the arc contour of the bottom of the front duckbill layer. The acquisition device controller is fixed to the rear end area of ​​the bottom mounting panel, and the infrared sensor and positioning module are fixed to the front end area of ​​the bottom mounting panel.

[0010] Furthermore, the visual acquisition module is tilted downwards at 15° and located in the center of the front duckbill layer.

[0011] Furthermore, the conductive speaker is located in the middle of the inner support layer corresponding to the ear, and is fixedly connected to the inner wall of the inner support layer by a strap.

[0012] Furthermore, a head circumference adjustment strap is fixed to the back of the guide cap. The head circumference adjustment strap is positioned opposite to the front duckbill layer, and the head circumference adjustment strap includes hook and loop fastener components for adjusting the head circumference size.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This guide cap-style assistive device features a high-strength, lightweight polycarbonate material for its internal support layer and a ventilation slot at the top. Combined with the microporous structure of the fabric layer, it is lighter than helmet-style devices. The arc-shaped mounting panel and the partitioned fixing design of the internal support layer provide a stable mounting base for components such as the visual acquisition module and acquisition device controller, avoiding the swaying or displacement of components caused by the lack of support in traditional baseball caps. It conforms to daily wearing habits and ensures the stability of navigation and perception functions.

[0015] 2. The fabric layer of this guide aid device adopts a composite structure of "polyester fiber base layer + TPU waterproof layer + fluorocarbon easy-to-wipe layer", combined with dark gray / black low brightness color scheme to achieve waterproof and stain-resistant performance. The top and bottom mounting panels of the front duckbill layer are made of thermoplastic polyurethane elastomer material as an independent load-bearing structure. When disassembling, only the panel screws need to be loosened to separate the electrical components, avoiding direct damage to the fabric layer.

[0016] 3. This guide assist device achieves full-scene navigation assistance through the collaborative operation of multiple modules. The visual acquisition module and infrared sensor capture information about obstacles, road signs and tactile paving in real time. With the positioning module and pre-stored offline maps, it can still generate navigation routes through local path planning even without a 5G network, solving the limitation of traditional devices that rely on the network. The bone conduction speaker combined with blind touch buttons supports voice broadcast of navigation commands and emergency obstacle warnings.

[0017] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the bottom structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the unfolded structure of the mandibular strap of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal support layer structure of this utility model.

[0022] Numbering on the map:

[0023] 1. Guide cap; 2. Internal support layer; 3. Front flap layer; 4. Chin strap; 5. Data acquisition device controller; 6. Visual acquisition module; 7. Conductive speaker; 8. Infrared sensor; 9. Head circumference adjustment strap; 10. Fabric layer; 11. Positioning module. Detailed Implementation

[0024] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0026] Please refer to the appendix carefully. Figure 1-4A head-mounted video acquisition device includes a guide cap 1. The guide cap 1 includes an inner support layer 2 and a front duckbill layer 3. The guide cap 1 and the front duckbill layer 3 are covered with a fabric layer 10. A chin strap 4 is fixed to the inner side of the inner support layer 2. A acquisition device controller 5, an infrared sensor 8 and a positioning module 11 are fixed to the bottom of the front duckbill layer 3. The acquisition device controller 5 integrates a navigation processing unit and is electrically connected to the positioning module 11. A visual acquisition module 6 is fixed to the top of the front duckbill layer 3. A conductive speaker 7 is fixed to one side of the guide cap 1.

[0027] In this embodiment, as Figure 1 , Figure 2 and Figure 4 As shown, the fabric layer 10 completely covers the front duckbill layer 3, covering its upper surface, lower surface and side edges. The fabric layer 10 only covers the outer ring area of ​​the inner support layer 2. The top of the inner support layer 2 has multiple ventilation slots.

[0028] Through the above structure, the internal support layer 2 is made of high-strength, lightweight polycarbonate material, with multiple ventilation slots on the top. Combined with the microporous structure on the top of the fabric layer 10, it ensures air circulation while reducing weight. Multiple wiring holes are provided on the surface to facilitate the routing of wiring for various electrical components between the fabric layer 10 and the internal support layer 2, achieving concealment and protection of the wiring. Compared with traditional helmet-style guide devices, the design adopts a baseball cap shape, which is lighter and more in line with daily wearing habits. Compared with traditional baseball caps, the internal support layer 2 provides a stable mounting support for devices such as the acquisition device controller 5, visual acquisition module 6, conductive speaker 7, and infrared sensor 8, ensuring that each component maintains accurate position and stable performance during use, taking into account comfort, practicality, and structural reliability.

[0029] The front-end duckbill layer 3 is designed for mounting electrical components, and its length and width are larger than those of traditional duckbill components to provide more ample installation space.

[0030] In this embodiment, as Figure 1 and Figure 2 As shown, the fabric layer 10 is a multi-layer composite structure, which includes, from the inside out, a textile base layer for providing comfort, a waterproof layer for providing a waterproof barrier, and an easy-to-wipe layer with low adhesion. The top of the fabric layer 10 is provided with a microporous structure above the corresponding internal support layer 2.

[0031] Through the above structure, the inner layer of the fabric layer 10 is made of skin-friendly polyester fiber textile, which provides a soft touch and good breathability. Its surface layer TPU film forms a waterproof barrier, while the fluorocarbon coating attached to the outermost layer makes it difficult for stains to adhere and can be wiped quickly with a damp cloth. It can also be made of dark gray or black, and these low-brightness colors can effectively cover up minor stains in daily use. Combined with the low adhesion characteristics of the outer fluorocarbon coating, the dirt resistance is doubly improved.

[0032] In this embodiment, as Figure 2 , Figure 3 and Figure 4 As shown, mounting panels are fixed to the top and bottom of the front duckbill layer 3, respectively. The top mounting panel is used to fix the vision acquisition module 6, and the bottom mounting panel is used to fix the acquisition device controller 5, the infrared sensor 8 and the positioning module 11. The bottom mounting panel has an arc-shaped fitting structure and fits along the arc contour of the bottom of the front duckbill layer 3. The acquisition device controller 5 is fixed to the rear end area of ​​the bottom mounting panel, and the infrared sensor 8 and the positioning module 11 are fixed to the front end area of ​​the bottom mounting panel.

[0033] With the above structure, the rear of the data acquisition device controller 5 is equipped with a waterproof Type-C interface, and the left side is equipped with several silicone raised button buttons with Braille markings. A thin film pressure sensor is integrated below the buttons. The top and bottom mounting panels of the front duckbill layer 3 are made of thermoplastic polyurethane elastomer. The bottom arc-shaped mounting panel fits along the arc contour of the bottom of the duckbill, and fixes the data acquisition device controller 5, infrared sensor 8 and positioning module 11 in sections. As an independent load-bearing structure, disassembly only requires loosening the outer waterproof shell of the electrical components connected to it and the screws fixing them, avoiding direct connection to the fabric layer 10, which would damage the surface material of the fabric layer 10. The cables between the data acquisition device controller 5 and the infrared sensor 8 and positioning module 11 are covered with an outer protective shell of the same material as the mounting panel, effectively protecting the cables.

[0034] In this embodiment, as Figure 1 , Figure 3 and Figure 4 As shown, the visual acquisition module 6 is tilted downwards at 15° and is located in the center of the front duckbill layer 3.

[0035] Through the above structure, the position and angle of the visual acquisition module 6 enable it to accurately capture information such as obstacles and road signs in the key field of vision ahead, reduce blind spots, ensure that the acquired data matches the actual travel route, and provide accurate visual data support for navigation and obstacle avoidance.

[0036] In this embodiment, as Figure 1 , Figure 2 and Figure 3As shown, the conductive speaker 7 is located in the middle of the inner support layer 2 corresponding to the ear, and is fixedly connected to the inner wall of the inner support layer 2 by a strap.

[0037] With the above structure, the conductive speaker 7 adopts a circular waterproof shell. When the guide hat 1 is worn, it is located at the corresponding position of the ear. It can not only fit the contour near the ear to ensure efficient sound transmission, but also has waterproof performance, providing reliable protection for visually impaired people to travel.

[0038] In this embodiment, as Figure 2 and Figure 4 As shown, a head circumference adjustment strap 9 is fixed to the back of the guide cap 1. The head circumference adjustment strap 9 is positioned opposite to the front duckbill layer 3, and the head circumference adjustment strap 9 includes hook and loop fastener components for adjusting the head circumference size.

[0039] With the above structure, the head circumference adjustment strap 9 adopts a Velcro design, which can quickly adapt to the user's head circumference through the flexible fit of the hook side and the textured side, making it more convenient for blind people to operate.

[0040] The specific operation process of this utility is as follows: It should be noted that the data acquisition device controller 5 of this device integrates a variety of key electrical components. Its internal microcontroller serves as the core processor, responsible for data processing and function coordination. The 8MB SPIFLAS is used to pre-store offline map data, navigation algorithm models, and obstacle databases, ensuring that users can achieve navigation functions through local route planning when on a 5G network. At the same time, the internal 32K BEEPROM can store personalized parameters set by the user (such as voice volume, frequently used destinations, etc.).

[0041] In addition, to facilitate user operation, several silicone raised dot buttons with Braille markings are set on the side of the data acquisition device controller 5. A thin film pressure sensor is integrated below the button and is electrically connected to the data acquisition device controller 5.

[0042] In terms of power supply, a TP4056 charging module is used with a lithium battery. When charging, simply connect the charger through the waterproof Type-C interface on the back of the data acquisition device controller 5. Some operations (such as updating the map and setting frequently used destinations) can be completed with the assistance of the user's family members. Data can be imported and configured by connecting to a computer through the USB interface.

[0043] The components work together to enable the guide cap 1 to provide accurate navigation and reliable environmental perception services for visually impaired people even in localized operation mode. The specific usage steps are as follows:

[0044] When wearing the guide hat 1, the user can first adjust the fit according to their own head circumference by using the Velcro hook side and the textured side of the head circumference adjustment strap 9, and then pull down the chin strap 4 with elastic structure and put it on the chin to complete the secure wearing.

[0045] Press the blind-touch raised button on one side of the data acquisition device controller 5 to turn on the device. The conductive speaker 7 will then issue a voice prompt. The positioning module 11 (u-blox NEO-6M) will obtain the current location coordinates and transmit the data to the navigation processing unit in the data acquisition device controller 5. This unit will combine the pre-stored map data to prepare for subsequent navigation path planning.

[0046] During wear, the visual acquisition module 6 (OV7670 miniature camera) is installed at a downward angle of 15° on the top of the front duckbill layer 3 to acquire images in front, which are used to identify environmental features such as obstacles, road signs, and tactile paving. The infrared sensor 8 (GP2Y0A21YK0F) located at the bottom front area of ​​the front duckbill layer 3 detects nearby obstacles in real time to supplement visual blind spot information. The data collected by both can be synchronously transmitted to the acquisition device controller 5.

[0047] The image processing unit built into the microcontroller in the acquisition device controller 5 operates to analyze and process the image data from the visual acquisition module 6. The navigation processing unit combines the location information and map data obtained by the positioning module 11 to generate a navigation path. The data fusion unit integrates the visual, infrared and positioning data to generate a detailed environmental perception report.

[0048] When the user inputs the destination using the blind touch button located on the left side of the acquisition device controller 5, the route information planned by the navigation processing unit will be converted into voice commands and broadcast through the conduction speaker 7 (AS650 bone conduction unit). If the infrared sensor 8 detects that an obstacle is approaching, an emergency warning will be triggered immediately, and the conduction speaker 7 will issue a voice prompt. At the same time, combined with the obstacle type identified by the visual acquisition module 6, a specific description will be added to remind the user to avoid it in time.

[0049] In addition to being compatible with the guide cap 1, this head-mounted video acquisition device can also be extended to various hat types such as baseball caps or fisherman's hats, as well as various structures such as bone conduction skeleton structures, headband headphones, goggles or decorative glasses.

[0050] Taking the bone conduction skeleton structure as an example: its core acquisition device controller 5 can be fixed to the posterior neck support of the bone conduction skeleton (near the area above the cervical spine, which can be located on the outside, not close to the spine). This position is far away from the joints of the head, which can reduce vibration interference during movement. The skeleton needs to have a pre-reserved arc-shaped mounting groove, which is fixed to the controller housing by buckles or screws to ensure stability.

[0051] The visual acquisition module 6 can be installed on the left / right ear hook structure of the bone conduction skeleton (usually close to the brow bone). The acquisition range can be ensured to cover the path directly in front by finely adjusting the bracket angle (keeping it tilted downwards at 15°).

[0052] The conductive speaker 7 can be directly embedded in the ear-side fitting part of the bone conduction skeleton, and the audio output is achieved by utilizing the vibration conduction function of the skeleton itself.

[0053] Infrared sensor 8 and positioning module 11 can be installed on the left / right ear hook structure of the bone conduction frame through the same bracket, simplifying the installation structure of the frame and ensuring the consistency of the detection range. A hidden wiring channel needs to be opened inside the bone conduction frame to connect the cables of each component.

[0054] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A head-mounted video acquisition device, comprising a guide hat (1), characterized in that: The guide cap (1) includes an inner support layer (2) and a front duckbill layer (3). The guide cap (1) and the front duckbill layer (3) are covered with a fabric layer (10). A chin strap (4) is fixed to the inner side of the inner support layer (2). A data acquisition device controller (5), an infrared sensor (8), and a positioning module (11) are fixed to the bottom of the front duckbill layer (3). The data acquisition device controller (5) integrates a navigation processing unit and is electrically connected to the positioning module (11). A visual acquisition module (6) is fixed to the top of the front duckbill layer (3). A conductive speaker (7) is fixed to one side of the guide cap (1).

2. The head-mounted video acquisition device according to claim 1, characterized in that: The fabric layer (10) completely covers the front duckbill layer (3), covering its upper surface, lower surface and side edge. The fabric layer (10) only covers the outer ring area of ​​the inner support layer (2). The top of the inner support layer (2) has multiple breathable slots.

3. The head-mounted video acquisition device according to claim 1, characterized in that: The fabric layer (10) is a multi-layer composite structure, which includes, from the inside out, a textile base layer for providing comfort, a waterproof layer for providing a waterproof barrier, and an easy-to-wipe layer with low adhesion. The top of the fabric layer (10) is provided with a microporous structure above the corresponding internal support layer (2).

4. The head-mounted video acquisition device according to claim 1, characterized in that: Mounting panels are fixed to the top and bottom of the front duckbill layer (3), respectively. The top mounting panel is used to fix the visual acquisition module (6), and the bottom mounting panel is used to fix the acquisition device controller (5), infrared sensor (8) and positioning module (11). The bottom mounting panel has an arc-shaped fitting structure and fits along the arc contour of the bottom of the front duckbill layer (3). The acquisition device controller (5) is fixed to the rear end area of ​​the bottom mounting panel, and the infrared sensor (8) and positioning module (11) are fixed to the front end area of ​​the bottom mounting panel.

5. A head-mounted video acquisition device according to claim 1, characterized in that: The visual acquisition module (6) is tilted downwards at 15° and located in the center of the front duckbill layer (3).

6. A head-mounted video acquisition device according to claim 1, characterized in that: The conductive loudspeaker (7) is located in the middle of the inner support layer (2) corresponding to the ear, and is fixedly connected to the inner wall of the inner support layer (2) by a strap.

7. A head-mounted video acquisition device according to claim 1, characterized in that: The guide cap (1) is fixed with a head circumference adjustment strap (9) on the back side. The head circumference adjustment strap (9) is arranged opposite to the front duckbill layer (3), and the head circumference adjustment strap (9) includes hook and loop fastener components for adjusting the head circumference size.

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