A depth feedback type guiding blind device

Abstract

The utility model provides a depth feedback formula blind guiding device, including headband and waistband, be provided with depth camera in the headband for obtaining object distance information in the scene, be provided with feedback module on the waistband, feedback module and depth camera electricity are connected for receiving the information of depth camera in real time and hinting user to avoid the obstacle, the utility model discloses using depth camera can obtain object distance information (depth data) in the scene, and its core function is three -dimensional environment perception, provides the spatial understanding ability for the user through the distance information of capture object and camera, and through the feedback module of waist and in time remind user to avoid the obstacle, and real -time is high, and the blind guiding accuracy is high.

Description

Technical Field

[0001] This utility model relates to the field of guide assist technology, and in particular to a depth feedback guide device. Background Technology

[0002] Aside from traditional methods like canes and guide dogs, the most advanced intelligent guide tools available are smart guide canes. These canes use various distance sensors, along with GPS, to acquire information about the surrounding environment and primarily provide voice prompts to guide the user through navigation and obstacle avoidance. However, this navigation method has some limitations. The time required for voice prompts makes it difficult for the device to respond to unexpected situations such as pedestrians or vehicles suddenly appearing. Furthermore, this method reduces the user's perception of ambient sounds.

[0003] Furthermore, the shape of the guide cane does not conform to the physiological characteristics of how humans normally use their eyes to perceive their surroundings, and the actual effectiveness of the sensors on the guide cane is greatly affected by the position of the cane. For example, when the user moves, the guide cane will inevitably move intermittently, and this movement will have a certain impact on the actual effectiveness of the sensors on the guide cane. Utility Model Content

[0004] To address the aforementioned problems, this invention aims to propose a depth feedback-based guidance device for the blind. The blind person wears a headband and a waist belt, with a depth camera fixed to the position of their glasses on the headband to perceive the surrounding environment. Information is transmitted to the user through a feedback device on the waist belt and a small amount of voice broadcasting, thus completing the entire guidance and navigation process.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A depth feedback-based guide device for the visually impaired includes a headband and a waist belt. The headband is equipped with a depth camera for acquiring distance information of objects in the scene. The waist belt is equipped with a feedback module, which is electrically connected to the depth camera to receive information from the depth camera in real time and prompt the user to avoid obstacles.

[0007] Furthermore, the feedback module includes vibration modules located on the left and right sides of the belt.

[0008] Furthermore, the feedback module also includes a tactile sensor located in the middle of the belt to provide the user with depth information of obstacles.

[0009] Furthermore, the feedback module also includes an STM32 microcontroller and a battery located on the belt.

[0010] Furthermore, the headband is also equipped with a sound alert module, which is connected to the depth camera.

[0011] Furthermore, the headband is also equipped with a main processor, a Bluetooth module, and a power module.

[0012] Beneficial effects: This utility model uses a depth camera to acquire distance information (depth data) of objects in a scene. Its core function is three-dimensional environmental perception. By capturing the distance information between objects and the camera, it provides users with spatial understanding capabilities. Furthermore, the feedback module on the waist promptly reminds users to avoid obstacles, resulting in high real-time performance and high accuracy of guidance for the visually impaired. Attached Figure Description

[0013] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0014] Figure 1 This is a three-dimensional structural diagram of the headband of the depth feedback guide device for the visually impaired described in an embodiment of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of the waist belt of the depth feedback guide device for the visually impaired described in an embodiment of this utility model;

[0016] Figure 3 This is a front view of the waist belt of the depth feedback guide device for the visually impaired described in this embodiment of the present invention. Detailed Implementation

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] Example 1

[0020] See Figure 1-3 A depth feedback-type guide device for the visually impaired includes a headband 1 and a waist belt 2. The headband 1 is equipped with a depth camera 101 for acquiring distance information of objects in the scene. The waist belt 2 is equipped with a feedback module, which is electrically connected to the depth camera 101 to receive information from the depth camera 101 in real time and prompt the user to avoid obstacles.

[0021] This embodiment uses a depth camera to acquire depth data and distance information of objects in the scene. Its core function is three-dimensional environmental perception. By capturing the distance information between objects and the camera, it provides users with spatial understanding capabilities. The feedback module on the waist promptly reminds users to avoid obstacles, which is highly real-time and has a high accuracy rate for guiding the blind.

[0022] In a specific example, the feedback module includes vibration modules 201 located on the left and right sides of the waist belt 2.

[0023] When the depth information read by the vibration modules on both sides of the belt is very close, the vibration modules located on both sides of the feedback mechanism belt emit vibration information to remind the user to avoid obstacles on the left and right sides.

[0024] In one specific example, the feedback module also includes a tactile sensor 202 located in the middle of the belt 2 to provide the user with depth information of obstacles.

[0025] This embodiment integrates a flexible tactile sensor array with a tactile sensor located in the middle of the belt. It detects changes in external pressure through piezoresistive or capacitive sensing and converts information such as the distance and shape of obstacles into tactile signals such as vibration intensity and frequency, which are then sent to the user to improve the effectiveness of the guide system.

[0026] In a specific example, the feedback module also includes an STM32 microcontroller 203 and a battery 204 located on the belt 2.

[0027] In this embodiment, the battery is used to provide power to each module, and the STM32 microcontroller is used to receive information from the depth camera and control each sensor module to perform corresponding actions.

[0028] In a specific example, the headband 1 is also provided with a sound reminder module 102, which is connected to the depth camera 101.

[0029] The sound alert module in this embodiment can issue navigation information based on depth camera prompts to guide the user's movement.

[0030] In a specific example, the headband 1 is also equipped with a main processor 103, a Bluetooth module 104, and a power module.

[0031] During use, the depth camera sensor on the headband reads the depth information of the surrounding environment, which is then processed by the main processor and sent to the feedback module via Bluetooth.

[0032] It should be noted that the power module in this embodiment is located inside the main body shell of the headband, therefore, it is not shown in the figure.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A depth feedback-based guide device for the visually impaired, characterized in that, The device includes a headband (1) and a waist belt (2). The headband (1) is equipped with a depth camera (101) for acquiring distance information of objects in the scene. The waist belt (2) is equipped with a feedback module, which is electrically connected to the depth camera (101) for receiving information from the depth camera (101) in real time and prompting the user to avoid obstacles.

2. The depth feedback type visual aid device according to claim 1, characterized in that, The feedback module includes vibration modules (201) located on the left and right sides of the waist belt (2).

3. The depth feedback type visual aid device according to claim 1, characterized in that, The feedback module also includes a tactile sensor (202) located in the middle of the belt (2) to provide the user with depth information of obstacles.

4. The depth feedback type visual aid device according to claim 1, characterized in that, The feedback module also includes an STM32 microcontroller (203) and a battery (204) located on the belt (2).

5. The depth feedback type visual aid device according to claim 1, characterized in that, The headband (1) is also provided with a sound reminder module (102), which is connected to the depth camera (101).

6. The depth feedback type visual aid device according to claim 1, characterized in that, The headband (1) is also equipped with a main processor (103), a Bluetooth module (104) and a power module.

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