In-vehicle camera device and vehicle
By adjusting the illumination range of the supplementary light by setting a light shield in the in-vehicle camera device, the problem of image blurring caused by supplementary light reflection is solved. This achieves both aesthetic and interior layout requirements without changing the installation position and angle, and improves the accuracy of user intent recognition.
Patent Information
- Application Number
- CN202422866537.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2034-11-22
AI Technical Summary
The user gestures or facial images captured by the in-vehicle camera are too dark or blurry due to the reflection of the supplementary light, which affects the accuracy of the recognition algorithm. Existing technologies can reduce the impact of reflected light by adjusting the installation position and angle, but it is difficult to meet the needs of vehicle interior and styling at the same time.
A light shield is installed around the supplementary light in the in-vehicle camera device to limit its illumination range and reduce light reflection. The illumination range of the supplementary light is adjusted by setting polygonal holes and bevels in the light shield, avoiding changes to the installation position and angle.
It effectively reduces the impact of reflections, improves the flexibility of camera device placement, takes into account both the aesthetics of vehicle styling and interior development requirements, and enhances the accuracy of user intent recognition.
Smart Images
Figure CN223872346U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of vehicle-mounted camera technology, and particularly to an in-vehicle camera device and a vehicle. Background Technology
[0002] In-vehicle cameras can be used to capture images of users' gestures or faces. Algorithms identify the user's intended meaning in the images, and the vehicle can react accordingly, enabling interaction between the cabin and the user. Currently, the light emitted by auxiliary lights is easily reflected back to the in-vehicle cameras by interior trim components, resulting in overly dark or blurry images of user gestures or faces captured by the cameras. This reduces the accuracy of the recognition algorithm and consequently affects the recognition of user intentions.
[0003] In related technologies, adjusting the installation position and angle of the in-vehicle camera device is commonly used to reduce the impact of reflected light. However, this method makes it difficult to simultaneously meet the requirements of the vehicle's interior design and styling when deploying the in-vehicle camera device. Utility Model Content
[0004] This application provides an in-vehicle camera device and a vehicle, which can reduce the impact of the light emitted by the auxiliary light on the user's intention recognition without changing the installation position and angle of the in-vehicle camera device, so that the layout of the in-vehicle camera device can simultaneously take into account the aesthetic requirements of the vehicle's styling and the development requirements of the interior.
[0005] In a first aspect, this application provides an in-vehicle camera device, comprising:
[0006] Mounting base;
[0007] The camera and the fill light module are located on the same side of the mounting base; the fill light module includes a fill light and a light shield, the light shield being arranged around the fill light to limit the illumination range of the fill light.
[0008] The solution provided in this application, by setting a light-shielding component around the supplementary light, can block part of the light emitted by the supplementary light, reduce the light's illumination on the interior components, and thus reduce the amount of light reflection, effectively reducing the impact of reflection. Compared with related technologies, the solution provided in this application removes the restrictions on the installation position and angle of the in-vehicle camera device, improving the flexibility of the in-vehicle camera device's layout. It is evident that this application can reduce the impact of the light emitted by the supplementary light on user intent recognition without changing the installation position and angle of the in-vehicle camera device, allowing the layout of the in-vehicle camera device to simultaneously meet the aesthetic requirements of the vehicle's styling and the development requirements of the interior.
[0009] In conjunction with the first aspect, in some possible implementations, the light-shielding member has a mounting hole in the middle, and the light-shielding member is fitted onto the supplementary light through the mounting hole;
[0010] The end face of the light-shielding member is further away from the mounting base than the light-emitting surface of the supplementary light.
[0011] In combination with the first aspect and the above implementation methods, in some possible implementation methods, the distance between the end face of the light-shielding member and the light-emitting surface of the supplementary light is greater than or equal to 1 mm and less than or equal to 2 mm.
[0012] In combination with the first aspect and the above implementation methods, in some possible implementation methods, the mounting hole is a polygonal hole;
[0013] At least one hole wall of the polygon has a slope extending in a direction away from the fill light.
[0014] In combination with the first aspect and the above implementation methods, in some possible implementation methods, the angle between the inclined plane and the light-emitting surface of the supplementary light is greater than 90° and less than or equal to 135°.
[0015] In conjunction with the first aspect and the above-described implementations, in some possible implementations, the in-vehicle camera device further includes:
[0016] The protective shell has a receiving cavity, in which the camera and the supplementary light module are both disposed.
[0017] In combination with the first aspect and the above-described implementation, in some possible implementations, the protective shell is provided with a light-blocking plate, which is located between the camera and the supplementary lighting module.
[0018] In combination with the first aspect and the above-described implementations, in some possible implementations, the mounting base includes:
[0019] The camera is mounted on the base.
[0020] A boss protrudes from the surface of the base; the supplementary lighting module is disposed on the boss.
[0021] Secondly, this application also provides a vehicle, including:
[0022] Body;
[0023] The in-vehicle camera device according to any of the first aspects above, wherein the in-vehicle camera device is disposed on the vehicle body.
[0024] In conjunction with the second aspect, in some possible implementations, the interior roof of the vehicle body is equipped with a display device, which is electrically connected to the in-vehicle camera device;
[0025] The number of in-vehicle cameras is two, and they are respectively located on both sides of the display device.
[0026] Additional aspects and advantages of this application 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 this application. Attached Figure Description
[0027] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the embodiments described below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:
[0028] Figure 1 This is a schematic diagram of the structure of an in-vehicle camera device provided in an embodiment of this application;
[0029] Figure 2 yes Figure 1 A schematic diagram of the in-vehicle camera device without its protective casing;
[0030] Figure 3 yes Figure 1 A schematic diagram of the protective casing for the in-vehicle camera device;
[0031] Figure 4 yes Figure 1 A top view of the supplementary lighting module in the in-vehicle camera system;
[0032] Figure 5 yes Figure 4 A schematic diagram of the light-shielding component in the supplementary lighting module;
[0033] Figure 6 yes Figure 4 A cross-sectional view of the supplementary lighting module along line AA.
[0034] The annotations in the attached figures are explained as follows:
[0035] 1—In-vehicle camera device;
[0036] 100—Mounting base; 110—Base; 120—Boss;
[0037] 200—Camera;
[0038] 300—Fill light module;
[0039] 310—Supplemental lighting;
[0040] 320—Light shield; 321—Mounting hole; 322—Bevel;
[0041] 400—Protective casing; 410—Light shield;
[0042] d—distance; α—angle. Detailed Implementation
[0043] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.
[0044] In order to enable the in-vehicle camera to effectively capture images of the user's gestures or face at night or in dimly lit environments, a supplementary lighting module is usually installed on the in-vehicle camera to provide supplementary lighting when the ambient light is insufficient.
[0045] However, the light emitted by the auxiliary lights is easily reflected back to the in-vehicle camera by the vehicle's interior trim (especially light-colored trim), resulting in the in-vehicle camera capturing images of the user's gestures or face that are too dark and blurry, reducing the accuracy of the recognition algorithm and thus affecting the recognition of the user's intent.
[0046] In related technologies, adjusting the installation position and angle of the in-vehicle camera device is commonly used to reduce the impact of reflected light. However, this method makes it difficult to simultaneously meet the requirements of the vehicle's interior design and styling when deploying the in-vehicle camera device.
[0047] To address the aforementioned technical problems, this application provides an in-vehicle camera device and a vehicle. The in-vehicle camera device and vehicle provided in this application will be described in detail below with reference to the accompanying drawings.
[0048] Please refer to Figure 1 and Figure 2 This application discloses a vehicle, including a vehicle body (not shown) and an in-vehicle camera device 1 mounted on the vehicle body. The in-vehicle camera device 1 includes a mounting base 100, a camera 200, and a supplementary lighting module 300. The supplementary lighting module 300 and the camera 200 are disposed on the same side of the mounting base 100. The supplementary lighting module 300 includes a supplementary light 310 and a light shield 320, the light shield 320 being disposed around the supplementary light 310 to limit the illumination range of the supplementary light 310.
[0049] The mounting base 100 serves as the mounting base for the camera 200 and the supplementary lighting module 300, and is connected to the vehicle body. (See also...) Figure 2The mounting base 100 may include a base 110 and a boss 120, with the boss 120 protruding from the surface of the base 110. The camera 200 is mounted on the base 110, and the supplementary lighting module 300 is mounted on the boss 120. It should be noted that, since the camera 200 is relatively large and the supplementary lighting module 300 is relatively small, to prevent the camera 200 from blocking the light emitted by the supplementary lighting module 300 and affecting its supplementary lighting effect, this embodiment may also provide a boss 120 protruding from the surface of the base 110. This ensures that the light-emitting surface of the supplementary lighting module 300 is substantially flush with the end face of the camera 200, guaranteeing the supplementary lighting effect of the supplementary lighting module 300.
[0050] The camera 200 includes an optical lens, an image sensor, an image signal processor, etc., and is used to capture images of the user's gestures or face. Since the structure of the camera 200 is not the focus of this application, it will not be described in detail here. The supplementary light 310 provides illumination by emitting light. The supplementary light 310 can be an array of packaged LEDs. The supplementary light 310 can be automatically switched on and off by a photoresistor, or it can be electrically connected to the camera 200 and switched on and off by the camera 200. A light-shielding member 320 surrounds the supplementary light 310 and can block part of the light emitted by the supplementary light 310, thereby limiting the illumination range of the supplementary light 310. As an example, the supplementary light 310 can be a supplementary light emitting infrared light with a wavelength generally between 850nm and 940nm, and the light-shielding member 320 can be made of colored glass, metal, ceramic, rubber, etc.
[0051] In addition, see Figure 1 and Figure 3 In some embodiments, the in-vehicle camera device 1 may further include a protective housing 400, which has a receiving cavity in which the camera 200 and the supplementary lighting module 300 are both disposed. The protective housing 400 can protect the lens of the camera 200 from dust, impurities, and corrosive gases, extending its service life and improving image quality. See also Figure 3 To prevent the supplementary lighting module 300 from reflecting within the cavity and entering the camera 200, thus affecting the imaging quality of the camera 200, in some embodiments, the protective shell 400 is provided with a light-blocking plate 410, located between the camera 200 and the supplementary lighting module 300. The light-blocking plate 410 can be made of colored plastic, colored glass, coated quartz glass, etc. Designers can flexibly choose the thickness and color of the light-blocking plate 410; this application does not impose specific limitations. When both the light-blocking plate 410 and the protective shell 400 are made of plastic, the protective shell 400 can be made of transparent plastic, and the light-blocking plate 410 can be made of colored plastic such as black. Furthermore, the light-blocking plate 410 and the protective shell 400 can be manufactured using a two-color injection molding process.
[0052] The solution provided in this application embodiment, by setting a light-shielding member 320 around the supplementary light 310, can block part of the light emitted by the supplementary light 310, reduce the light's illumination on the interior parts, and thus reduce the amount of light reflection, effectively reducing the impact of reflection. Compared with related technologies, the solution provided in this application embodiment removes the restrictions on the installation position and angle of the in-vehicle camera device 1, improving the flexibility of the in-vehicle camera device 1's arrangement. It is evident that this application can reduce the impact of the light emitted by the supplementary light 310 on user intent recognition without changing the installation position and angle of the in-vehicle camera device 1, allowing the layout of the in-vehicle camera device 1 to simultaneously meet the aesthetic requirements of vehicle styling and the development requirements of interior design.
[0053] As can be seen from the above, provided that the captured images cover the user's gestures or face, designers can flexibly set the installation position of the in-vehicle camera 1 on the vehicle body. For example, the in-vehicle camera 1 can be installed at the top of the vehicle's windshield, above the dashboard, in the center of the vehicle's roof, etc.
[0054] It should be noted that this application does not specify the number of in-vehicle camera devices 1. There can be only one, or two, three, four, etc. For example, only one in-vehicle camera device 1 can be installed in the front driver's cabin to capture images of the driver's gestures or face. Alternatively, two in-vehicle camera devices 1 can be installed in the front driver's cabin, one capturing images of the driver's gestures or face and the other capturing images of the front passenger's gestures or face. Furthermore, one or two in-vehicle camera devices 1 for capturing images of occupants' gestures or faces can be installed in the rear passenger compartment.
[0055] In some embodiments, a display device can be installed in the interior roof of the vehicle body. This display device can be a central control screen in the front driver's cabin or an entertainment screen in the rear passenger cabin. The display device is electrically connected to an in-vehicle camera device 1. There can be two in-vehicle cameras 1, one on each side of the display device. When the display device is a central control screen in the front driver's cabin, the driver and front passenger can use gestures or facial expressions to make the vehicle respond accordingly, such as quickly adjusting the air conditioning temperature, opening and closing windows, controlling navigation, etc. When the display device is an entertainment screen in the entertainment cabin, rear passengers can use gestures or facial expressions to open or fold the entertainment screen, adjust the seat, control the volume, etc.
[0056] See Figure 4 , Figure 5 and Figure 6The light-shielding member 320 has a mounting hole 321 in its middle, through which it is fitted onto the supplementary light 310; the end face of the light-shielding member 320 is further away from the mounting base 100 than the light-emitting surface of the supplementary light 310. In other words, as... Figure 6 As shown, the height of the light-shielding member 320 is greater than the height of the supplementary light 310. Thus, the illumination range of the supplementary light 310 can be adjusted by adjusting the height of the light-shielding member 320.
[0057] In some embodiments, the distance d between the end face of the light-shielding member 320 and the light-emitting surface of the supplementary light 310 is greater than or equal to 1 mm and less than or equal to 2 mm.
[0058] After conducting extensive testing, the applicant unexpectedly discovered that if the distance d between the end face of the light-shielding member 320 and the light-emitting surface of the supplementary light 310 is less than 1 mm, the light-shielding member 320 can only block a small portion of the scattered light emitted by the supplementary light 310. The effect of the light-shielding member 320 in limiting the illumination range of the supplementary light 310 is relatively weak, and it is difficult to effectively reduce the impact of reflection. When the distance d between the end face of the light-shielding member 320 and the light-emitting surface of the supplementary light 310 is greater than or equal to 1 mm, the effect of reducing the impact of reflection is more significant. On the other hand, the applicant also unexpectedly discovered that when the distance d between the end face of the light-shielding member 320 and the light-emitting surface of the supplementary light 310 is equal to 2 mm, the light-shielding member 320 has already blocked most of the scattered light emitted by the supplementary light 310. If the distance d is further extended beyond 2 mm, the light-shielding member 320 will not be able to further limit the illumination range of the supplementary light 310, and it will also result in material waste. Therefore, the distance d between the end face of the light-shielding member 320 and the light-emitting surface of the supplementary light 310 is greater than or equal to 1 mm and less than or equal to 2 mm. This can significantly reduce the impact of reflection and also help avoid material waste.
[0059] In some embodiments, the distance d between the end face of the light-shielding member 320 and the light-emitting surface of the supplementary light 310 can be 1mm, 1.2mm, 1.4mm, 1.5mm, 1.6mm, 1.8mm, 2mm, etc.
[0060] In some embodiments, the mounting hole 321 is a polygonal hole. At least one wall of the polygonal hole has a bevel 322 extending in a direction away from the fill light 310. The polygonal hole can be a quadrilateral hole, a hexagonal hole, etc. For example, Figure 4 and Figure 5 As shown, the mounting hole 321 can be a rectangular hole. In this case, one side of the cross-section of the light-shielding member 320 can be rectangular, and the other side can be trapezoidal or pentagonal.
[0061] In some embodiments, the angle α between the inclined surface 322 and the light-emitting surface of the supplementary light 310 is greater than 90° and less than or equal to 135°.
[0062] When the angle α between the inclined plane 322 and the light-emitting surface of the supplementary light 310 is greater than 90°, the inclined plane 322 is tilted relative to the light-emitting surface of the supplementary light 310. As the tilt angle increases, the light scattered by the supplementary light 310 is increasingly less blocked by the inclined plane 322. When the angle α between the inclined plane 322 and the light-emitting surface of the supplementary light 310 is greater than 135°, the inclined plane 322 can only block a small amount of light emitted by the supplementary light 310, and its effect on avoiding the light emitted by the supplementary light 310 is limited. Therefore, the blocking effect on scattered light is optimal when the angle α between the inclined plane 322 and the light-emitting surface of the supplementary light 310 is greater than 90° and less than or equal to 135°. For example, the included angle α can be 100°, 110°, 120°, 125°, 126°, 126.5°, 127°, 127.5°, 128°, 129°, 130°, 132°, 135°, etc.
[0063] In this embodiment of the application, by providing a slope 322 on the wall of the mounting hole 321, part of the light emitted by the supplementary light 310 can be avoided, thereby further adjusting the illumination range of the supplementary light 310.
[0064] Understandably, the polygonal aperture has multiple aperture walls, and the designer can create bevels 322 on one or more aperture walls according to the required illumination range of the supplementary lighting 310. For example, as... Figure 4 and Figure 5 As shown, inclined surfaces 322 can be provided on the two hole walls on the right and bottom sides.
[0065] It should be noted that the mounting hole 321 of the light-shielding member 320 restricts the illumination range of the supplementary light 310 in all directions. However, in practical applications, the illumination range of the supplementary light 310 needs to be completely restricted in some directions, while only partial restriction is needed in others. Furthermore, the degree of restriction required varies depending on the direction requiring partial restriction. Therefore, this embodiment of the application, by providing inclined surfaces 322 on one or more walls of the polygonal hole, can further adjust the illumination range of the supplementary light 310, ensuring that the restriction of the illumination range of the supplementary light 310 in different directions meets actual needs.
[0066] The above embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. An in-vehicle camera device (1), characterized in that, include: Mounting base (100); The camera (200) and the fill light module (300) are disposed on the same side of the mounting base (100); the fill light module (300) includes a fill light (310) and a light shield (320), the light shield (320) being disposed around the fill light (310) to limit the illumination range of the fill light (310); The light shield (320) has a mounting hole (321) in the middle. The mounting hole (321) is a polygonal hole, and at least one wall of the polygonal hole has a slope (322) extending away from the supplementary light (310).
2. The in-vehicle camera device (1) according to claim 1, characterized in that, The light-shielding member (320) is fitted onto the supplementary light (310) through the mounting hole (321); The end face of the light shield (320) is further away from the mounting base (100) than the light-emitting surface of the supplementary light (310).
3. The in-vehicle camera device (1) according to claim 2, characterized in that, The distance (d) between the end face of the light shield (320) and the light-emitting surface of the supplementary light (310) is greater than or equal to 1 mm and less than or equal to 2 mm.
4. The in-vehicle camera device (1) according to claim 1, characterized in that, The angle (α) between the inclined plane (322) and the light-emitting surface of the supplementary lamp (310) is greater than 90° and less than or equal to 135°.
5. The in-vehicle camera device (1) according to claim 1, characterized in that, The in-vehicle camera device also includes: The protective shell (400) has a receiving cavity, in which the camera (200) and the supplementary light module (300) are both disposed.
6. The in-vehicle camera device (1) according to claim 5, characterized in that, The protective shell (400) is provided with a light-blocking plate (410), which is located between the camera (200) and the supplementary light module (300).
7. The in-vehicle camera device (1) according to claim 1, characterized in that, The mounting base (100) includes: The camera (200) is disposed on the base (110). A boss (120) protrudes from the surface of the base (110); the supplementary lighting module (300) is disposed on the boss (120).
8. A vehicle, characterized in that, include: Body; The in-vehicle camera device (1) as described in any one of claims 1 to 7, wherein the in-vehicle camera device (1) is disposed on the vehicle body.
9. The vehicle according to claim 8, characterized in that, The interior roof of the vehicle body is equipped with a display device, which is electrically connected to the in-vehicle camera device (1); The number of in-vehicle camera devices (1) is two, and they are respectively located on both sides of the display device.