Image acquisition device

Abstract

The utility model discloses an image acquisition device, in a first state, an image acquisition terminal is positioned to a first position corresponding to a first window, and a lens axis of the image acquisition terminal coincides with a light path of the first window; in the second state, the image acquisition terminal is positioned to a second position corresponding to the second window, and the lens axis of the image acquisition terminal coincides with the light path of the second window; wherein the image acquisition terminal realizes switching between the first position and the second position through physical displacement. The image acquisition terminal is switched to the position of the corresponding window through physical displacement such as rotation or translation, the axis of the lens always coincides with the light path of the selected window, flexible adaptation of scenes can be achieved, deployment of multiple devices is not needed, consistency of data can be achieved, the same terminal acquires images at different angles, calibration errors among the multiple devices are eliminated, and the calibration efficiency is improved. And the score analysis reliability is improved.

Description

Technical Field

[0001] This utility model relates to the field of image recognition hardware, and in particular to an image acquisition device. Background Technology

[0002] In sports training or competition scenarios, the direction of movement of runners on the track (clockwise or counterclockwise) may change due to training needs or track rules. Traditional image acquisition equipment (such as fixed cameras) can usually only cover a single perspective, leading to the following problems: insufficient coverage, a single camera cannot simultaneously capture the complete movements of runners in different directions, requiring the deployment of multiple devices, increasing costs and maintenance difficulty; low switching efficiency, manually adjusting the camera angle is time-consuming and laborious, making it difficult to meet the needs of real-time data acquisition; poor image consistency, images acquired by different devices cause analysis errors due to angle differences, affecting the accuracy of performance judgment, which urgently needs improvement. Utility Model Content

[0003] To address the technical problems existing in the background art, this utility model proposes an image acquisition device, comprising:

[0004] The housing has a first window and a second window forming a predetermined angle on its surface;

[0005] The image acquisition terminal is movably installed inside the housing and configured as follows:

[0006] In the first state, the image acquisition terminal is positioned at the first position corresponding to the first window, and its lens axis coincides with the optical path of the first window;

[0007] In the second state, the image acquisition terminal is positioned at the second position corresponding to the second window, and its lens axis coincides with the optical path of the second window; wherein, the image acquisition terminal switches between the first position and the second position through physical displacement.

[0008] Furthermore, the included angle α between the planes containing the first window and the second window satisfies 45°≤α≤120°, and the two windows are set at the same height on the shell surface.

[0009] Furthermore, a fixed support structure is provided inside the housing. The image acquisition terminal is rotatably mounted on the fixed support structure through a rotating connection mechanism, and the extension direction of the fixed support structure is perpendicular to the plane where the first window and the second window are located.

[0010] Furthermore, the rotary connection mechanism includes at least one arc-shaped guide groove formed on the image acquisition terminal and a guide post on the fixed support structure. The guide post is slidably fitted into the arc-shaped guide groove, and the axis of the guide post is parallel to the rotation axis of the image acquisition terminal. The central axis of the arc-shaped guide groove coincides with the rotation axis of the image acquisition terminal.

[0011] Furthermore, when the image acquisition terminal rotates to the point where the guide post contacts the end of the arc-shaped guide groove, the image acquisition terminal is locked in the first position or the second position.

[0012] Furthermore, the curvature range of the arc-shaped guide groove matches the switching angle from the first window to the second window, and a damping structure is provided between the guide and the arc-shaped guide groove to provide positioning resistance.

[0013] Furthermore, the housing is equipped with optical correction components corresponding to the first and second windows to compensate for optical path deviations caused by window switching.

[0014] Furthermore, the image acquisition terminal is detachably connected to the housing via a snap-fit ​​or magnetic structure, and its displacement switching is achieved through manual operation or electric drive.

[0015] In this invention, the proposed image acquisition device has two windows arranged at an angle on the surface of its housing. The image acquisition terminal can switch to the corresponding window position through physical displacement, such as rotation or translation. The lens axis always coincides with the optical path of the selected window, enabling flexible scene adaptation. By switching the viewing angle with a single device, it can cover different movement directions of clockwise and counterclockwise runners without the need for multiple devices. It can also achieve data consistency, allowing the same terminal to acquire images from different angles, eliminating calibration errors between multiple devices, and improving the reliability of performance analysis. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an image acquisition device proposed in this utility model;

[0017] Figure 2 This is a partial structural schematic diagram of an image acquisition device proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of an image acquisition device proposed in this utility model. Detailed Implementation

[0019] Reference Figure 1-3This utility model proposes an image acquisition device, comprising: a housing 1 and an image acquisition terminal 2. The surface of the housing 1 is provided with a first window 11 and a second window 12 forming a predetermined angle. The image acquisition terminal 2 is movably installed inside the housing 1 and is configured as follows: In a first state, the image acquisition terminal 2 is positioned at a first position corresponding to the first window 11, with its lens axis coinciding with the optical path of the first window 11; so that the image acquisition terminal 2 at the first position can acquire images outside the housing 1 through the first window 11; In a second state, the image acquisition terminal 2 is positioned at a second position corresponding to the second window 12, with its lens axis coinciding with the optical path of the second window 12; so that the image acquisition terminal 2 at the second position can acquire images outside the housing 1 through the second window 12. The surface of the housing 1 is provided with two windows 11 and 12 distributed at an angle. The image acquisition terminal 2 can switch viewing angles between the first position (covering clockwise runners) and the second position (covering counterclockwise runners), eliminating the need for multiple deployments and ensuring good data consistency. The same terminal can acquire images from different angles, eliminating calibration errors between multiple devices and improving the reliability of performance analysis.

[0020] Furthermore, the included angle α between the planes containing the first window 11 and the second window 12 satisfies 45°≤α≤120°, and the two windows are set at the same height on the surface of the shell 1. Setting the included angle α between the two window planes to 45°~120°, preferably 90°, and ensuring the window centerlines are at the same horizontal height (e.g., in the middle of the shell), allows for scientific coverage of curved areas. The included angle range adapts to the arc-shaped path of the track's curves, ensuring complete capture of the runner's lateral movements, such as stride posture. This eliminates height deviations, and the equal-height arrangement avoids image distortion caused by differences in window height, improving the accuracy of motion trajectory analysis.

[0021] Furthermore, a fixed support structure 3 is provided inside the housing 1. The image acquisition terminal 2 is rotatably mounted on the fixed support structure 3 via a rotating connection mechanism 4, and the extension direction of the fixed support structure 3 is perpendicular to the plane containing the first window 11 and the second window 12. The support structure 3 is a horizontal plate or frame, fixed inside the housing; the image acquisition terminal 2 is connected to the support structure via a rotating shaft, and the rotating plane is perpendicular to the plane containing the window. This ensures stable motion trajectory, as the support structure restricts the terminal to rotate only around a fixed axis, avoiding optical path misalignment caused by displacement; it also simplifies operation, as rotating angle switching does not require complex calibration, making it suitable for rapid on-site adjustments.

[0022] Furthermore, the rotating connection mechanism 4 includes at least one arc-shaped guide groove 41, 42 formed on the image acquisition terminal 2 and guide posts 31, 32 on the fixed support structure 3. The guide posts 31, 32 are slidably fitted into the arc-shaped guide groove 41, 42, and the axis of the guide posts 31, 32 is parallel to the rotation axis of the image acquisition terminal 2. The central axis of the arc-shaped guide groove 41, 42 coincides with the rotation axis of the image acquisition terminal 2. The terminal 2 is provided with concentric arc-shaped grooves 41, 42, and the guide posts 31, 32 of the support structure 3 slide inside the grooves. The curvature of the grooves matches the rotation angle of the terminal. Precise positioning can be achieved. The cooperation between the guide posts and the grooves limits the rotation range of the terminal and ensures that the lens axis is strictly aligned with the window optical path. Derailment can be prevented. The double-groove double-post structure enhances stability and prevents the terminal from shaking during movement.

[0023] Furthermore, when the image acquisition terminal 2 rotates until the guide posts 31, 32 contact the ends of the arc-shaped guide grooves 41, 42, the image acquisition terminal 2 is locked in the first position or the second position. The arc-shaped grooves have limiting protrusions or grooves at both ends; when the guide posts slide to the end of the groove, they engage with the limiting structure to lock the terminal position. This achieves mechanical self-locking, eliminating the need for additional electronic locking devices, reducing costs and failure rates; the operator can confirm the terminal is locked by touch, avoiding accidental operation.

[0024] Furthermore, the curvature range of the arc-shaped guide grooves 41 and 42 matches the switching angle between the first window 11 and the second window 12, and a damping structure is provided between the guide posts 31 and 32 and the arc-shaped guide grooves 41 and 42 to provide positioning resistance. The surfaces of the guide posts 31 and 32 are covered with rubber or spring-loaded, and the curvature of the arc-shaped grooves 41 and 42 is consistent with the required rotation angle of the terminal, thereby achieving smooth switching. The damping structure can prevent the terminal from overshooting due to inertia; achieving rapid positioning, with the curvature range accurately matching the required angle, reducing redundant movement.

[0025] Furthermore, the housing 1 is equipped with optical correction components corresponding to the first window 11 and the second window 12, used to compensate for optical path deviations caused by window switching. Lenses or prisms are installed inside each window 11 and 12 to compensate for changes in optical path length caused by terminal displacement, eliminating image distortion. This ensures image fidelity, as the correction components counteract perspective distortion caused by viewpoint switching, ensuring the accuracy of motion posture analysis; it also enables optical path self-adaptation, making it suitable for acquisition terminals with different focal lengths and improving device compatibility.

[0026] Furthermore, the image acquisition terminal 2 is detachably connected to the housing 1 via a snap-fit ​​or magnetic structure, and its displacement switching is achieved through manual operation or electric drive. Terminal 2 connects to the housing via magnetic contacts or quick-release snaps, and the switching operation supports manual knob adjustment or motor drive such as a stepper motor + gear set. Maintenance is more convenient; the detachable design facilitates lens replacement or terminal repair; diverse control options are available, with a manual mode for temporary adjustments and an electric mode supporting remote control, adapting to the needs of intelligent event management.

[0027] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An image acquisition device, characterized in that, include: The housing (1) has a first window (11) and a second window (12) forming a predetermined angle on its surface; The image acquisition terminal (2) is movably installed inside the housing (1) and is configured as follows: In the first state, the image acquisition terminal (2) is positioned at the first position corresponding to the first window (11), and its lens axis coincides with the optical path of the first window (11); In the second state, the image acquisition terminal (2) is positioned at the second position corresponding to the second window (12), and its lens axis coincides with the optical path of the second window (12); wherein, the image acquisition terminal (2) achieves switching between the first position and the second position through physical displacement.

2. The image acquisition device according to claim 1, characterized in that, The included angle α between the planes containing the first window (11) and the second window (12) satisfies 45°≤α≤120°, and the two windows are set at the same height on the surface of the shell (1).

3. The image acquisition device according to claim 1, characterized in that, The housing (1) is provided with a fixed support structure (3). The image acquisition terminal (2) is rotatably mounted on the fixed support structure (3) through a rotating connection mechanism (4). The extension direction of the fixed support structure (3) is perpendicular to the plane where the first window (11) and the second window (12) are located.

4. The image acquisition device according to claim 3, characterized in that, The rotating connection mechanism (4) includes at least one arc-shaped guide groove (41,42) opened on the image acquisition terminal (2) and a guide post (31,32) on the fixed support structure (3). The guide post (31,32) is slidably fitted in the arc-shaped guide groove (41,42), and the axis of the guide post (31,32) is parallel to the rotation axis of the image acquisition terminal (2). The central axis of the arc-shaped guide groove (41,42) coincides with the rotation axis of the image acquisition terminal (2).

5. The image acquisition device according to claim 4, characterized in that, When the image acquisition terminal (2) rotates to the point where the guide post (31,32) contacts the end of the arc-shaped guide groove (41,42), the image acquisition terminal (2) is locked in the first position or the second position.

6. The image acquisition device according to claim 4, characterized in that, The arc range of the arc guide groove (41,42) matches the switching angle between the first window (11) and the second window (12), and a damping structure is provided between the guide post (31,32) and the arc guide groove (41,42) to provide positioning resistance.

7. The image acquisition device according to claim 1, characterized in that, The housing (1) is provided with optical correction components corresponding to the first window (11) and the second window (12) to compensate for optical path deviation caused by window switching.

8. The image acquisition device according to claim 1, characterized in that, The image acquisition terminal (2) is detachably connected to the housing (1) via a snap-fit ​​or magnetic structure, and its displacement switching is achieved by manual operation or electric drive.

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