Head-mounted data acquisition device

Abstract

The utility model provides a head-mounted data acquisition device. The head-mounted data acquisition device comprises a head fixing assembly, a support, a data acquisition assembly and a data transmission assembly. The head fixing assembly comprises a main body frame and a length adjusting mechanism, the head is sleeved with the main body frame, and the length adjusting mechanism is arranged on the main body frame. The support is connected with the head fixing assembly, and the angle of the support can be adjusted. The data acquisition assembly is installed on the support and acquires driving images or videos along with the view field of people. And the data acquisition assembly is also connected with a whole vehicle bus and synchronously acquires data of the whole vehicle bus. The data transmission assembly is connected with the data acquisition assembly and external equipment, and the data transmission assembly transmits the driving images or videos acquired by the data acquisition assembly and the whole vehicle bus data to the external equipment. The system can be used for recording real-time road conditions and automobile head-up display images at the same time and synchronizing bus data of the whole automobile.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile driving assistance, in particular to a head-mounted data acquisition device. Background Art

[0002] In the field of modern automotive safety and driver assistance technology, the in-vehicle Heads Up Display (HUD) system is an innovative technology that significantly improves the convenience and safety of driving. The system projects key information such as vehicle speed, navigation instructions and driver assistance directly on the windshield, so that the driver does not need to frequently look down at the dashboard, effectively reducing the time of line of sight shifting, thereby reducing the risk of accidents. However, in the process of evaluating and optimizing the performance of this system, a core challenge is how to comprehensively and accurately capture and analyze the HUD projection content and its integration with the road environment, while ensuring that this process does not affect the driver's normal driving vision.

[0003] Although the dashcams currently on the market have been widely used to record road conditions in front of or behind the vehicle, they are powerless when facing the HUD system. First, because the HUD projection area is limited to a small area directly in front of the driver's line of sight, the installation position of the traditional dashcam (such as below the rearview mirror or the upper right corner of the windshield) often cannot directly capture the image of this key area, resulting in a lack of evaluation of the head-up display content. Secondly, even if you try to adjust the installation position of the dashcam to cover the HUD projection area, it is very easy to cause the driver's line of sight to be blocked, posing a potential threat to driving safety.

[0004] In addition, the functional limitations of existing dashcams are also reflected in data synchronization. They mainly focus on recording video data, but cannot achieve synchronous collection and analysis with vehicle bus data. The vehicle bus data contains comprehensive information about the vehicle's operating status, such as speed, engine status, braking conditions, etc., which are crucial for a deep understanding of the interaction between the HUD system and vehicle dynamics. Therefore, the lack of data synchronization capabilities limits the application value of dashcams in evaluating the effectiveness of HUD systems.

[0005] In summary, the current dashcams on the market have obvious deficiencies in capturing HUD projection content, ensuring unobstructed driver vision, and achieving synchronization with vehicle bus data. An innovative solution is urgently needed to fill this technological gap in order to better support the research and development and optimization of vehicle-mounted head-up display systems. Utility Model Content

[0006] In order to solve the above problems, the utility model proposes a head-mounted data acquisition device, comprising:

[0007] The head fixing component includes a main body frame and a length adjusting mechanism. The main body frame is sleeved on the head, and the length adjusting mechanism is arranged on the main body frame to adjust the tightness of the main body frame.

[0008] The bracket is connected to the head fixing component, and the angle of the bracket can be adjusted.

[0009] The data acquisition component is installed on the bracket. The data acquisition component follows the person's field of vision to acquire driving images or videos, and the data acquisition component is also connected to the vehicle bus to synchronously acquire vehicle bus data.

[0010] The data transmission component is connected to the data acquisition component and an external device. The data transmission component transmits the driving images or videos and vehicle bus data acquired by the data acquisition component to the external device.

[0011] In one embodiment, the main body frame includes:

[0012] The first fixing belt, which is formed into a ring and fits around the periphery of the head.

[0013] The second fixing belt, the two ends of which are respectively connected to the first fixing belt, and the lengths of the first fixing belt and the second fixing belt can both be adjusted by the length adjusting mechanism.

[0014] In one embodiment, the length adjusting mechanism is two adjusting buckles, which are respectively arranged on the first fixing belt and the second fixing belt to adjust the lengths of the first fixing belt and the second fixing belt.

[0015] In one embodiment, both the first fixing belt and the second fixing belt are elastic bands with anti-slip rubber pads on the inner side.

[0016] In one embodiment, the data acquisition component includes a camera, and the horizontal installation angle of the camera is 52° and the vertical angle is 57°.

[0017] In one embodiment, the data transmission component includes: a power cord, a data transmission line, and an adjustment line. The first ends of the power cord, the data transmission line, and the adjustment line are connected to the data acquisition component, the second end of the power cord is connected to a power source, and the second ends of the data transmission line and the adjustment line are connected to an external device.

[0018] In one embodiment, the data transmission component is arranged above the head fixing component.

[0019] In one embodiment, the bracket includes a bracket body and an angle adjustment mechanism. The bracket body includes a first connection portion and a second connection portion. The first connection portion is connected to the head fixing assembly, and the second connection portion is connected to the data acquisition assembly. The angle adjustment mechanism is disposed between the first connection portion and the second connection portion, and the angle adjustment mechanism adjusts the relative angle between the second connection portion and the first connection portion.

[0020] In one embodiment, the angle adjustment mechanism can adjust the angle up and down.

[0021] In one embodiment, through the cooperation of the head fixing assembly and the bracket, the position of the data acquisition assembly is adjusted between the two eyes of the user.

[0022] The head-mounted data acquisition device of the present utility model has the following beneficial effects:

[0023] 1. Enhanced stability and precise positioning: The device provides a stable support platform for the camera, ensuring that it maintains an accurate and stable position on the user's head, effectively reducing the image jitter caused by head movement, thereby generating clear and stable images and videos.

[0024] 2. Synchronous image acquisition of the driver's perspective: Through the carefully designed installation position, the device can accurately capture and synchronize the real-time perspective of the driver, achieving image recording highly consistent with the driver's visual experience. This function is of great significance in the fields of driving behavior analysis, vehicle performance testing, and safety assessment, and can truly reflect the driver's visual perception and reaction in specific situations.

[0025] 3. Seamless integration of video and vehicle data: The device is not limited to image acquisition, but also has powerful data integration capabilities. Through subsequent software integration technology, it can accurately synchronize the collected video data with the vehicle bus data (such as vehicle speed, engine status, braking information, etc.). This synchronous processing provides great convenience for subsequent data analysis, enabling researchers to comprehensively and accurately review the test process and deeply analyze the problems encountered in the test and their causes.

[0026] 4. Improve the efficiency of test analysis and review: Thanks to the synchronous integration of video and data, the device greatly simplifies the analysis process after the test. Researchers no longer need to manually match the video and data, and can quickly locate the key nodes in the test for detailed analysis. This not only improves the analysis efficiency, but also ensures the accuracy and reliability of the analysis results, providing strong support for the optimization and improvement of products. Description of the Drawings

[0027] Figure 1Schematic structural diagram of a head-mounted data acquisition device according to an embodiment of the present utility model;

[0028] Figure 2 Top view schematic diagram of a head-mounted data acquisition device according to an embodiment of the present utility model;

[0029] Figure 3 Side view schematic diagram of a head-mounted data acquisition device according to an embodiment of the present utility model;

[0030] Figure 4 Front view schematic diagram of a head-mounted data acquisition device according to an embodiment of the present utility model.

[0031] Among them, 1 is a data acquisition component, 2 is a bracket, 3 is a head fixing component, 4 is a data transmission component, 31 is a first fixing band, and 32 is a second fixing band. Detailed implementation manners

[0032] In order to make the objectives, technical solutions and advantages of the present 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 only used to explain the utility model and are not used to limit the utility model.

[0033] To solve the above technical problems that the driving recorder cannot collect head-up display images and cannot synchronize vehicle bus data, the present utility model proposes a head-mounted data acquisition device, which can be used to record real-time road conditions and vehicle head-up display images simultaneously and synchronize vehicle bus data. As Figure 1 shown, a head-mounted data acquisition device proposed by the present utility model includes: a data acquisition component 1, a bracket 2, a head fixing component 3, and a data transmission component 4.

[0034] The head fixing component 3 includes a main body frame and a length adjustment mechanism. The main body frame is sleeved on the head, and the length adjustment mechanism is arranged on the main body frame for adjusting the tightness of the main body frame. As Figure 2As shown, the main frame includes a first fixing band 31 and a second fixing band 32. The first fixing band 31 is formed into a loop and fits around the outer periphery of the head. Both ends of the second fixing band 32 are respectively connected to the first fixing band 31, and the lengths of the first fixing band and the second fixing band can both be adjusted by an adjusting mechanism. In this embodiment, both ends of the second fixing band 32 are oppositely arranged for connection with the first fixing band 31. The length adjusting mechanism is two adjusting buckles, which are respectively arranged on the first fixing band 31 and the second fixing band 32 to adjust the lengths of the first fixing band 31 and the second fixing band 32. Preferably in this embodiment, both the first fixing band 31 and the second fixing band 32 are elastic bands with anti-slip rubber pads on the inner side. While ensuring comfort and stability, they have the characteristics of being firm and not easily loosening, and have good elasticity. The cooperation of this elastic band and the adjusting buckle can adjust the size according to the head circumference, and can be directly worn on the user's head or on a hat, which is convenient for shooting continuous shots from the driver's visual angle. That is, the length of the first fixing band 31 can be adjusted to fit the user's head circumference or the outer dimension of the hat, and the length of the second fixing band 32 can be adjusted to fit the user's head top or the top of the hat.

[0035] As Figure 3 shown, the bracket 2 is connected to the head fixing assembly 3, and the angle of the bracket 2 can be adjusted. The bracket 2 is used to support and fix the data acquisition component 1, so that the data acquisition component 1 can be kept stable at a certain position. Specifically, the bracket 2 includes a bracket main body and an angle adjusting mechanism. The bracket main body includes a first connecting portion and a second connecting portion. The first connecting portion is connected to the head fixing assembly 3, and the second connecting portion is connected to the data acquisition component 1. The angle adjusting mechanism is arranged between the first connecting portion and the second connecting portion, and the angle adjusting mechanism adjusts the relative angle between the second connecting portion and the first connecting portion. The angle adjusting mechanism supports up-and-down angle adjustment, providing more flexibility and adaptability for the data acquisition component 1. The user (such as a driver) can easily capture the driving perspective picture by adjusting the bracket, and the installation position can also effectively avoid blocking the driver's line of sight, thereby ensuring driving safety. Since the height, sitting posture and line of sight habits of each user are different, through the up-and-down angle adjustment supported by the angle adjusting mechanism, the user can adjust the data acquisition component to the best position according to his own line of sight range and habits, ensuring that the captured picture is both clear and meets the personal perspective requirements. In addition, during driving, changes in road conditions (such as mountain roads, curves, urban roads, etc.) may require the user to frequently adjust the line of sight. The angle adjusting mechanism with the up-and-down angle adjustment function can help the driver quickly adjust the shooting angle of the data acquisition component to capture more key information and improve driving safety.

[0036] As Figure 4As shown, the data acquisition component 1 is installed on the bracket 2. The data acquisition component 1 collects driving images or videos following the user's vision and can restore the actual driving conditions. The data acquisition component 1 is also connected to the vehicle bus to synchronously collect vehicle bus data. In this embodiment, the data acquisition component includes a camera. The horizontal installation angle of the camera is 52°, and the vertical angle is 57°. In addition, the resolution of the camera is 1920*1080, and the frame rate is 30HZ. The camera ensures image stabilization through an integrated installation, has functions of automatic comparison and brightness adjustment, and can automatically correct distortion. The camera supports automatic focusing and also supports manual adjustment of the focal length through software. The camera uses a low-noise CMOS image sensor with a size of 1 / 2” and 45MP pixels. Through the cooperation of the head fixing component 3 and the bracket 2, the position of the data acquisition component 1 can be adjusted between the user's two eyes. That is, the camera can be fixed in the middle of the driver's two eyes, simulating the height and line-of-sight position of the driver, clearly recording the content of the head-up display that the driver can observe, and avoiding affecting the driver's line of sight.

[0037] The data transmission component 4 is connected to the data acquisition component 1 and an external device. The data transmission component 4 transmits the driving images or videos and vehicle bus data collected by the data acquisition component 1 to the external device. In this embodiment, the data transmission component 4 includes: a power line, a data transmission line, and an adjustment line. The first end of the power line is connected to the data acquisition component 1, and the second end of the power line is connected to a power source to provide power for the data acquisition component 1 through the power line. The first end of the data transmission line is connected to the data acquisition component 1, and the second end of the data transmission line is connected to an external device (such as an external computer terminal) to transmit the image or video data collected by the data acquisition component 1 back to the computer in real time. The first end of the adjustment line is connected to the data acquisition component 1, and the second end of the adjustment line is connected to the external device. The parameters of the data acquisition component 1 (such as the focal length, brightness, and contrast of the camera) can be adjusted through the external device. Software that supports synchronous recording of head-up display images and bus CAN data is installed on the external computer terminal. In this application, the synchronization of the camera and vehicle bus data is mainly used to achieve real-time synchronization of camera video data and vehicle bus data, so that users can view and review relevant videos and records in real time on the computer, and can compare the content displayed on the head-up display and bus data when analyzing data later to help with problem analysis and solution.

[0038] The head-mounted data acquisition device of the present utility model has the following beneficial effects:

[0039] 1. Enhanced stability and precise positioning: The device provides a stable support platform for the camera, ensuring its accurate and stable position on the user's head, effectively reducing the picture jitter caused by head movement, and thus generating clear and stable images and videos.

[0040] 2. Image acquisition synchronized with the driver's perspective: Through a carefully designed installation position, this device can accurately capture and synchronize the real-time perspective of the driver, achieving image recording highly consistent with the driver's visual experience. This function is of great significance in fields such as driving behavior analysis, vehicle performance testing, and safety assessment, and can truly reflect the driver's visual perception and reaction in specific situations.

[0041] 3. Seamless integration of video and vehicle data: This device is not limited to image acquisition but also has powerful data integration capabilities. Through subsequent software integration technology, it can precisely synchronize the collected video materials with vehicle bus data (such as vehicle speed, engine status, braking information, etc.). This synchronous processing provides great convenience for subsequent data analysis, enabling researchers to comprehensively and accurately review the test process and deeply analyze the problems encountered in the test and their causes.

[0042] 4. Improving the efficiency of test analysis and review: Thanks to the synchronous integration of video and data, this device greatly simplifies the analysis process after the test. Researchers can quickly locate the key nodes in the test for detailed analysis without manually matching the video and data. This not only improves the analysis efficiency but also ensures the accuracy and reliability of the analysis results, providing strong support for the optimization and improvement of products.

[0043] The similar terms such as "installed", "set", "connected", and "linked" used in the description of this application should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can also be the communication inside two components. Those skilled in the art can understand their specific meanings in this application according to the specific situation. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Finally, it should be noted that the orientation or position relationship indicated by terms such as "up" and "down" in the text is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing this utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to this utility model.

[0044] The above-described embodiments are only further descriptions of this utility model and do not impose other forms of limitations on this utility model. This utility model can also have many other embodiments. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding modifications and changes according to this utility model, but these corresponding modifications and changes should all fall within the protection scope of this utility model.

Claims

1. A head-mounted data acquisition device, characterized in that: include: The head fixing assembly comprises a main frame and a length adjustment mechanism, wherein the main frame is sleeved on the head, and the length adjustment mechanism is arranged on the main frame, and the length adjustment mechanism adjusts the tightness of the main frame; A bracket connected to the head fixing assembly, wherein the angle of the bracket can be adjusted; A data acquisition component is installed on the bracket, and the data acquisition component follows the person's field of vision to collect driving images or videos. The data acquisition component is also connected to the vehicle bus to synchronously collect vehicle bus data; The data transmission component is connected to the data acquisition component and the external device, and the data transmission component transmits the driving image or video collected by the data acquisition component and the whole vehicle bus data to the external device.

2. A head-mounted data acquisition device according to claim 1, characterized in that: The main framework includes: A first fixing belt, the first fixing belt is formed into a ring shape and fits the periphery of the head; A second fixing belt, wherein both ends of the second fixing belt are respectively connected to the first fixing belt, and the lengths of the first fixing belt and the second fixing belt can be adjusted by the length adjustment mechanism.

3. A head-mounted data acquisition device according to claim 2, characterized in that: The length adjustment mechanism is two adjustment buckles, which are respectively arranged on the first fixing belt and the second fixing belt to adjust the lengths of the first fixing belt and the second fixing belt.

4. A head-mounted data acquisition device according to claim 2, characterized in that: The first fixing belt and the second fixing belt are both elastic belts with anti-slip rubber pads on the inner sides.

5. A head-mounted data acquisition device according to claim 1, characterized in that: The data acquisition component includes a camera, and the camera is installed at a horizontal angle of 52° and a vertical angle of 57°.

6. A head-mounted data acquisition device according to claim 1, characterized in that: The data transmission component includes: a power line, a data transmission line and an adjustment line, wherein the first ends of the power line, the data transmission line and the adjustment line are connected to the data acquisition component, the second ends of the power line are connected to the power supply, and the second ends of the data transmission line and the adjustment line are connected to the external device.

7. A head-mounted data acquisition device according to claim 1, characterized in that: The data transmission component is arranged above the head fixing component.

8. The head-mounted data acquisition device according to claim 1, characterized in that: The bracket includes a bracket body and an angle adjustment mechanism, the bracket body includes a first connecting part and a second connecting part, the first connecting part is connected to the head fixing component, the second connecting part is connected to the data acquisition component, and the angle adjustment mechanism is arranged between the first connecting part and the second connecting part, and the angle adjustment mechanism adjusts the relative angle between the second connecting part and the first connecting part.

9. A head-mounted data acquisition device according to claim 8, characterized in that: The angle adjustment mechanism can adjust the angle up and down.

10. The head-mounted data acquisition device according to claim 1, characterized in that: Through the cooperation of the head fixing component and the bracket, the position of the data acquisition component is adjusted between the eyes of the user.

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