Vehicle light device, vehicle and control method
By installing a light projection unit with multiple projection ports on the vehicle, a bright area on the ground surrounding the vehicle is formed, which solves the problem of insufficient applicability of traditional vehicle warning methods in complex scenarios, and achieves more efficient warning prompts and improved safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-09
- Publication Date
- 2026-03-31
AI Technical Summary
Existing vehicle warning methods are difficult to effectively create a visible boundary in complex outdoor scenarios, and traditional sound and light warnings are insufficient to meet diverse usage needs.
Design a vehicle lighting device comprising a light projection unit with multiple projection ports, capable of selectively projecting light onto the front, rear, left, and right sides of the vehicle to form a bright area on the ground surrounding the vehicle, constituting a visible light boundary.
By creating a bright area around the vehicle, the vehicle's warning and alert capabilities in outdoor scenarios are significantly improved, adapting to various scenarios such as driving, camping, and parking, providing an intuitive spatial outline and warning lines to enhance safety.
Smart Images
Figure CN121757038A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of automotive parts technology, and more specifically, to a vehicle lighting device, a vehicle, and a control method. Background Technology
[0002] Currently, vehicle warnings are mainly achieved through audible and visual warnings, such as using flashing lights or buzzers to emit flashing lights or sounds to warn. Such methods can only indicate that "there is an anomaly in the surroundings" and are difficult to form an effective visual boundary.
[0003] While some technologies attempt to project warning patterns (such as triangles and arrows) onto nearby vehicles or pedestrians using light projection technology, the increasing prevalence of vehicles as just means of transportation and diverse usage scenarios, coupled with growing demands for outdoor camping, parking, and nighttime lighting, renders traditional vehicle warning methods less effective in these complex situations. Summary of the Invention
[0004] The present invention aims to address, to a certain extent, the problem in related technologies of how to improve the warning capability of vehicle lighting devices and enhance their applicability in various scenarios.
[0005] To address at least one aspect of the aforementioned problems, in a first aspect, the present invention provides a vehicle lighting device, including a light projection unit disposed on a vehicle, the light projection unit having a plurality of projection ports, the plurality of projection ports being respectively disposed facing the front, rear, left and right sides of the vehicle, the light projection unit being configured to selectively project light onto the ground through one or more of the projection ports; when the light projection unit projects light onto the ground through the plurality of projection ports facing the front, rear, left and right sides together, a bright area formed on the ground surrounds the vehicle.
[0006] Optionally, the light projection unit includes multiple lamp bodies, which are disposed on the top of the vehicle, and each lamp body includes one or more projection ports.
[0007] Optionally, the vehicle lighting device further includes a luggage rack disposed on the top of the vehicle. The luggage rack includes two frames that extend in a front-to-back direction and are spaced apart in a left-to-right direction. The light body is installed inside each of the two frames.
[0008] Optionally, each of the two frames is provided with a lamp body having only one projection port at its front and rear ends. The projection ports of the two lamp bodies located at the front and rear ends of each frame are respectively oriented to the two adjacent sides of the vehicle in the circumferential direction. The projection ports of the two lamp bodies located at the same end of the two frames in the front-rear direction are respectively oriented to the two adjacent sides of the vehicle in the circumferential direction. Alternatively, one of the two frames may have a lamp body with two projection ports at its front end and the other at its rear end. One projection port of the lamp body at the front end faces the front of the vehicle, and the other projection port faces either the left or right side of the vehicle. One projection port of the lamp body at the rear end faces the rear of the vehicle, and the other projection port faces either the left or right side of the vehicle.
[0009] Optionally, the frame includes a main frame and end structures located at both ends of the main frame in the front-rear direction. The end structure includes a main body and a cover plate. The main body and the main frame are provided with at least one of a plug-in connection structure and a fastening connection structure. The cover plate is detachably connected to the main body. At least one of the two end structures at both ends of the main frame is provided with a lamp body. The lamp body is arranged in the mounting cavity formed between the main body and the cover plate.
[0010] Optionally, the lamp body includes a laser and a laser controller; the lamp body also includes at least one of a blue light detector and a temperature sensor, the laser controller being electrically connected to the laser, the blue light detector, and the temperature sensor respectively; the blue light detector is disposed inside the housing of the lamp body and is configured to monitor the intensity of blue light in the light emitted by the laser of the lamp body or the light reflected from the ground; the temperature sensor is disposed inside the housing of the lamp body to monitor the temperature of the laser; And / or, the light projected by the lamp body through the projection port is a line laser, and the bright area formed by the line laser on the ground is a thin, bright band. The light projection unit includes four projection ports facing the front, the rear, the left, and the right respectively. When the light projection unit projects the line laser onto the ground through the four projection ports, the four thin, bright bands intersect to form a rectangular area surrounding the vehicle.
[0011] In a second aspect, the present invention provides a vehicle including the vehicle lighting device as described in the first aspect above.
[0012] Optionally, the vehicle further includes a vehicle controller, and at least one of a communication device, an environmental monitoring device, and an audible and visual alarm device. The vehicle controller is communicatively connected to the vehicle lighting device, the communication device, the environmental monitoring device, and the audible and visual alarm device, respectively. The communication device is used for communication with other vehicles.
[0013] Thirdly, the present invention provides a control method for a vehicle lighting device as described in any one of the first aspects above, or for a vehicle as described in any one of the second aspects above, the control method comprising: Obtain control commands; The light projection unit is controlled according to the obtained control command to project light through one or more projection ports; when the light projection unit projects light onto the ground through multiple projection ports facing the front, rear, left and right sides, the light projected onto the ground forms a bright area that surrounds the vehicle.
[0014] Optionally, the control command includes at least one of a control command to enter the linkage mode and a control command to enter the rhythm mode; In the linkage mode, the control method includes a master control method for the master control vehicle and a slave control method for the slave vehicle. The controlled method specifically includes: when a control command to enter the linkage mode is obtained, receiving a control command from the master control vehicle, and controlling the light projection unit of the controlled vehicle according to the control command of the master control vehicle; The main control method specifically includes: when a control command to enter the linkage mode is obtained, a control strategy is determined, the light projection unit of the main control vehicle is controlled according to the control strategy, and a control command is issued to the controlled vehicle to control the light projection unit of the controlled vehicle. The linkage mode includes a campground surround mode. In the campground surround mode, the control strategy includes: causing the light projection units of the master control vehicle and the controlled vehicle to surround the bright area formed on the ground by the light projection units of the master control vehicle and the controlled vehicle to surround the vehicle combination consisting of multiple vehicles. The rhythmic mode includes: dynamically selecting the projection port from all the projection ports of the light projection unit according to a time sequence to project light, so that the projected light forms a rhythmic light effect on the ground.
[0015] In the vehicle lighting device, vehicle, and control method of the present invention, the light projection unit has multiple projection ports, which face the front, rear, left, and right sides of the vehicle, respectively. The light projection unit can selectively project light onto the ground through one or more of the projection ports. When the light projection unit selects to activate one projection port (activating a projection port means selecting to project light through that port), a bright area, such as a thin, elongated bright band, is formed on the ground around the vehicle corresponding to the direction facing the activated projection port. When the light projection unit selects to activate two projection ports, bright areas are formed on the ground around the vehicle corresponding to the two directions facing the two activated projection ports, thus forming, for example, two thin, elongated bright bands. When all four projection ports are activated, the bright areas formed on the ground around the vehicle surround the vehicle, thereby forming a relatively complete visible light boundary. This visible light boundary serves as an intuitive and identifiable spatial outline, forming a warning zone around the vehicle, allowing people (including users and surrounding people) to clearly distinguish the vehicle's "territory" warning line.
[0016] In scenarios such as driving, camping, parking, and nighttime lighting, this invention allows for flexible selection of the number and combination of projection ports, adapting to the current spatial layout and warning requirements as needed. The bright area formed by projected light silently enhances the warning boundary, significantly improving its applicability and effectiveness in real outdoor conditions. For example, in driving conditions, the vehicle lighting device can also be used for vehicle distance indication. By projecting light from the forward-facing projection port, the driver can observe the bright area on the ground in front of the vehicle and its relative position to the vehicle in front to judge the distance. Light can also be projected from the rear-facing projection port, using the bright area on the ground behind the vehicle to warn following vehicles not to follow too closely. For example, in camping mode, all four projection ports can be activated, forming a warning zone around the vehicle through a visible bright boundary, allowing people (including the user and surrounding crowds) to clearly distinguish the vehicle's "territory" warning line, deterring wild animals, and improving the quietness and safety of vehicle camping. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of a vehicle lighting device installed on the vehicle roof in an embodiment of the present invention; Figure 2 This is a schematic diagram showing that, in an embodiment of the present invention, when lamps with individual projection ports are respectively installed at the four corners of the luggage rack, four slender bright strips intersect to form a rectangular area surrounding the vehicle. Figure 3 This is a schematic diagram of the left side frame of the luggage rack in an embodiment of the present invention; Figure 4 This is a schematic diagram of the front end of the left side frame of the luggage rack in an embodiment of the present invention; Figure 5This is a schematic diagram of the end structure of the left frame after the cover plate has been removed in an embodiment of the present invention. Figure 6 This is another structural schematic diagram of the front end of the left side frame of the luggage rack in an embodiment of the present invention; Figure 7 for Figure 6 Sectional view at section AA; Figure 8 This is a schematic diagram of the end structure of the right frame after the cover plate is removed in an embodiment of the present invention. Figure 9 This is a control principle diagram of the vehicle lighting device in an embodiment of the present invention; Figure 10 This is a schematic diagram showing four slender bright strips intersecting to form a rectangular area surrounding the vehicle when lamps with two projection ports are respectively installed diagonally opposite each other on the luggage rack in another embodiment of the present invention. Figure 11 This is a flowchart of the control method in an embodiment of the present invention; Figure 12 This is a schematic diagram illustrating a rectangular area surrounding two vehicles formed by the bright area created by the projected light on the ground in an embodiment of the present invention. Figure 13 This is a schematic diagram illustrating how the bright area formed by the projected light on the ground in an embodiment of the present invention encloses a rectangular area surrounding four vehicles.
[0018] Explanation of reference numerals in the attached figures: 1-Lamp body; 11-Projection port; 11a-Front projection port; 11b-Left projection port; 11c-Rear projection port; 11d-Right projection port; 12-Laser; 13-Laser controller; 14-Blue light detector; 15-Temperature sensor; 21-Luggage rack; 211-Frame; 2111-Main frame; 2112-End structure; 21121-Main body; 21122-Cover plate; 2113-Mounting cavity; 22-Top cover; 23-Skylight; 3-Bright area; 3a-Front bright area; 3b-Left bright area; 3c-Rear bright area; 3d-Right bright area; 4-Device controller. Detailed Implementation
[0019] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0021] In the description of this specification, the references to terms such as "embodiment," "one embodiment," "some implementations," "exemplary," and "one implementation," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.
[0022] The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.
[0023] In the attached figures, the Z-axis represents the vertical direction, i.e., the up-down position, and the positive direction of the Z-axis (i.e., the direction the arrow points) indicates up, and the negative direction of the Z-axis indicates down; the X-axis represents the front-back position, and the positive direction of the X-axis (i.e., the direction the arrow points) indicates the front, and the negative direction of the X-axis indicates the back; the Y-axis represents the horizontal direction and is designated as the left-right position, and the positive direction of the Y-axis (i.e., the direction the arrow points) indicates the right side, and the negative direction of the Y-axis indicates the left side; it should be noted that the aforementioned representations of the Z-axis, Y-axis, and X-axis are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
[0024] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a vehicle lighting device, which includes a light projection unit disposed on the vehicle. The light projection unit has a plurality of projection ports 11, which are respectively disposed facing the front, rear, left and right sides of the vehicle. The light projection unit is configured to selectively project light onto the ground through one or more projection ports 11. When the light projection unit projects light onto the ground through the plurality of projection ports 11 facing the front, rear, left and right sides, a bright area 3 is formed on the ground surrounding the vehicle.
[0025] Specifically, the light projection unit is a device that guides the emitted light from the light source to the projection port 11, which can be understood as the window through which the light from the light projection unit exits. The light projection unit may include one or more optical devices, such as the lamp body 1. Each optical device is provided with one or more projection ports 11. The placement of the optical devices in the vehicle is not limited, provided that the orientation of the projection ports 11 is satisfied and the light projected through the projection ports 11 can illuminate the ground. This specification will provide illustrative examples in conjunction with the embodiments below.
[0026] Specifically, the light projection unit can selectively project light through any one of the projection ports 11 facing the front, rear, left, and right. When light is projected through the projection port 11 facing the front (which can be defined as the front projection port 11a), the bright area 3 formed on the ground is located at the front of the vehicle. The bright area 3 in front of the vehicle can be defined as the front bright area 3a, which can be a thin, elongated bright band extending in the left-right direction (represented by only a thick solid line in the figure). When light is projected through the projection port 11 facing the rear (which can be defined as the rear projection port 11c), the bright area 3 formed on the ground is located at the rear of the vehicle. The bright area 3 behind the vehicle can be defined as the rear bright area 3c, which can be a thin, elongated bright band extending in the left-right direction (represented by only a thick solid line in the figure). When light is projected through the projection port 11 facing left (which can be defined as left projection port 11b), the bright area 3 formed on the ground is located on the left side of the vehicle. The bright area 3 on the left side of the vehicle can be defined as the left bright area 3b, which can be a thin, elongated bright band extending in the front-back direction (represented by only a thick solid line in the figure). When light is projected through the projection port 11 facing right (which can be defined as right projection port 11d), the bright area 3 formed on the ground is located on the right side of the vehicle. The bright area 3 on the right side of the vehicle can be defined as the right bright area 3d, which can be a thin, elongated bright band extending in the front-back direction (represented by only a thick solid line in the figure).
[0027] The light projection unit can selectively project light through two to four projection ports 11 facing the front, rear, left and right sides.
[0028] For example, when the light projection unit selects to project light through both the front projection port 11 (front projection port 11a) and the rear projection port 11 (rear projection port 11c), the bright area 3 formed on the ground includes a front bright area 3a and a rear bright area 3c. When the light projection unit selects to project light through both the front projection port 11 (front projection port 11a) and the left projection port 11 (left projection port 11b), the bright area 3 formed on the ground includes a front bright area 3a and a left bright area 3b.
[0029] For example, when the light projection unit selects to project light through the projection ports 11 facing the front, rear, left, and right sides, that is, when the light projection unit selects to project light through the front projection port 11a, rear projection port 11c, left projection port 11b, and right projection port 11d, the bright area 3 formed on the ground includes a front bright area 3a, a left bright area 3b, a rear bright area 3c, and a right bright area 3d. These bright areas surround the vehicle, forming a relatively complete visible light boundary around it, thus creating a warning zone for the vehicle. The distance between the visible light boundary and the vehicle can be designed according to actual conditions. For example, the distance between the visible light boundary and the circumferential edge of the vehicle can be 12 meters, 10 meters, 8 meters, 5 meters, etc. The distance between the visible light boundary and the circumferential edge of the vehicle in each direction can be the same or different; this is not a limitation.
[0030] Thus, in the vehicle lighting device of the present invention, the light projection unit has multiple projection ports 11, and the multiple projection ports 11 face the front, rear, left and right sides of the vehicle respectively. The light projection unit can selectively project light onto the ground through one or more projection ports 11. When the light projection unit selects to activate one projection port 11 (activating a projection port 11 means selecting to project light through that projection port 11), a bright area 3, such as a thin, bright band, is formed on the ground around the vehicle corresponding to the direction in which the activated projection port 11 faces. When the light projection unit selects to activate two projection ports 11, bright areas 3 are formed on the ground around the vehicle corresponding to the two directions in which the two activated projection ports 11 face, thereby forming, for example, two thin, bright bands. When all four projection ports 11 are activated, the bright areas 3 formed on the ground around the vehicle surround the vehicle, thereby forming a relatively complete visible light boundary. This visible light boundary serves as an intuitive and identifiable spatial outline, forming a warning area around the vehicle, allowing people (including users and surrounding people) to clearly distinguish the vehicle's "territory" warning line.
[0031] The vehicle lighting device of this invention allows for flexible selection of the number and combination of projection ports 11 in scenarios such as driving, camping, parking, and nighttime lighting. It adapts to the current spatial layout and warning requirements as needed, and silently enhances the warning boundary through the bright area 3 formed by the projected light, significantly improving its applicability and effectiveness of warning prompts in real outdoor conditions. For example, when the vehicle is in motion, the vehicle lighting device can also be used for vehicle distance indication. By projecting light through the projection ports 11 facing forward, the driver can observe the relative position of the bright area 3 on the ground in front of the vehicle and the vehicle in front to judge the distance. Light can also be projected through the projection ports 11 facing backward, and the bright area 3 on the ground behind the vehicle can be used to warn following vehicles not to follow too closely. For example, in camping mode, all four projection ports 11 can be activated, forming a warning area around the vehicle through the visible bright boundary, allowing people (including users and surrounding people) to clearly distinguish the vehicle's "territory" warning line, deterring wild animals, and improving the quietness and safety of vehicle camping.
[0032] like Figure 2 and Figure 10 As shown, the light projection unit includes multiple lamp bodies 1, which are disposed on the top of the vehicle. Each lamp body 1 includes one or more projection ports 11. When the same lamp body 1 includes multiple projection ports 11.
[0033] Specifically, the inclusion of a projection port 11 in the same lamp body 1 means that a single lamp body 1 is configured with only one optical emission channel to guide the light beam to be emitted through this projection port 11, which faces only one direction among the front, rear, left, or right sides of the vehicle; when the lamp body 1 is activated, the bright area 3 it forms on the ground is a thin, elongated bright band extending in that direction. For example, when a lamp body 1 with a single projection port 11 facing the front is activated, a bright area 3a extending in the left-right direction is formed in front of the vehicle; when a lamp body 1 with a single projection port 11 facing the left is activated, a bright area 3b extending in the front-rear direction is formed on the left side of the vehicle. Such a lamp body 1 has a smaller volume.
[0034] The term "same lamp body 1 includes multiple projection ports 11" means that a single lamp body 1 can project light through multiple projection ports 11. The laser 12 of this lamp body 1 can have a single light source or multiple light sources. Through internal control, it can achieve simultaneous projection through multiple projection ports 11 or selective projection through one of the projection ports 11. For example, if there are two light sources and two projection ports 11, a beam splitter ensures that the light emitted by the two light sources is emitted through two separate projection ports 11.
[0035] refer to Figure 10In some scenarios, the orientations of multiple projection ports 11 of the same lamp body 1 correspond to the adjacent sides of the vehicle's circumference. "The orientations of multiple projection ports 11 correspond to the adjacent sides of the vehicle's circumference" means that the illuminated areas formed on the ground by the emitted beams from the multiple projection ports 11 of the lamp body 1 are located on adjacent sides of the vehicle's circumference. In some scenarios, the multiple projection ports 11 of the same lamp body 1 face forward and left, thus obtaining a bright area 3a on the front and a bright area 3b on the left. In some scenarios, the multiple projection ports 11 of the same lamp body 1 face forward and right, thus obtaining a bright area 3a on the front and a bright area 3d on the right. In some scenarios, the multiple projection ports 11 of the same lamp body 1 face backward and left, thus obtaining a bright area 3c on the rear and a bright area 3b on the left. In some scenarios, the multiple projection ports 11 of the same lamp body 1 face backward and right, thus obtaining a bright area 3c on the rear and a bright area 3d on the right. This arrangement helps reduce the number of lasers 12 required.
[0036] In some scenarios, the lamp body 1 of the light projection unit includes only a lamp body 1 with a single projection port 11. In some scenarios, the lamp body 1 of the light projection unit includes only a lamp body 1 with multiple projection ports 11. In some scenarios, the lamp body 1 of the light projection unit includes both lamp bodies 1 with a single projection port 11 and lamp bodies 1 with multiple projection ports 11; this is not a limitation.
[0037] like Figure 2 As shown, in some embodiments, the light projected by the lamp body 1 through the projection port 11 is a line laser. The bright area 3 formed by the line laser on the ground is a thin and bright band. When the light projection unit projects the line laser onto the ground through multiple projection ports 11 (e.g., four projection ports 11) facing the front, rear, left and right sides, the thin and bright bands in the four directions (e.g., four thin and bright bands) intersect to form a rectangular area surrounding the vehicle.
[0038] For example, the laser 12 of the lamp body 1 is emitted by a monochromatic green laser light source, whose visual wavelength has high human eye sensitivity and strong penetration in nighttime and low-light environments, resulting in a significant warning effect.
[0039] The point source of the laser 12 of the lamp body 1 is shaped and expanded into a line laser by optical devices such as cylindrical mirrors, Powell prisms or diffractive optical elements. The line laser forms a thin, bright band on the ground with uniform linewidth (e.g., 2–5 mm), high contrast, and extending in a single direction.
[0040] like Figure 2As shown, when the projection ports 11 facing the front, rear, left, and right sides are activated simultaneously, the four thin, bright bands projected by the four projection ports 11 extend along the left-right direction (front / rear side) and the front-back direction (left / right side) respectively, and converge at the four corners of the vehicle to form a rectangular area (the sides of the rectangle may extend beyond the vehicle). This rectangular area surrounds the vehicle, forming a closed, visible, bright boundary around the vehicle, allowing people or animals to intuitively identify the vehicle's warning area. This effectively solves the problem of traditional sound and light warnings "difficult to form an effective visual boundary" and significantly improves the reliability and applicability of warnings in complex scenarios such as camping, parking, and nighttime lighting.
[0041] Thus, the light projected by the lamp body 1 through the projection port 11 is a linear laser, which helps to reduce the number of lamp bodies 1 required, reduce structural complexity and application costs, and is highly practical.
[0042] like Figure 9 As shown, the lamp body 1 includes a laser 12 (as a light source) and a laser controller 13 (as a driving and logic hub); the laser controller 13 is communicatively connected to the laser 12 to control the operation of the light source of the laser 12.
[0043] like Figure 9 As shown, in some embodiments, the lamp body 1 further includes a safety monitoring module; the safety monitoring module includes at least one of a blue light detector 14 and a temperature sensor 15, and the laser controller 13 is electrically connected to the blue light detector 14 and the temperature sensor 15 respectively; the blue light detector 14 is disposed inside the housing of the lamp body 1 and is configured to monitor the intensity of blue light in the light emitted by the laser 12 of the lamp body 1 or the light reflected from the ground; the temperature sensor 15 is disposed inside the housing of the lamp body 1 to monitor the temperature of the laser 12.
[0044] For example, both the blue light detector 14 and the temperature sensor 15 are built into the housing of the lamp body 1 and are electrically connected to the laser controller 13 via a PCB circuit board. The housing of the lamp body 1 can surround and protect the laser 12, the laser controller 13, the blue light detector 14, and the temperature sensor 15. The blue light detector 14 is configured to collect in real time the blue light radiation intensity in the laser beam emitted by the laser 12 or its echo after reflection from the ground, with wavelengths in the range of 380–420 nm. When the detected value exceeds a preset threshold, the laser controller 13 outputs a shutdown signal to forcibly shut down the laser 12 output. The temperature sensor 15 can be attached to the heat sink or driver chip surface of the laser 12 to monitor its operating temperature in real time. When the temperature exceeds the set temperature, the laser controller 13 controls the laser 12 to reduce power to reduce heat generation.
[0045] Thus, the blue light detector 14 helps monitor blue light leakage from the laser 12, preventing eye damage. Furthermore, the temperature sensor 15 helps prevent the laser 12 from overheating and affecting its lifespan, ensuring its lifespan and safety.
[0046] It should be noted that the vehicle lighting device may include a device controller 4, which is communicatively connected to the laser controller 13 of each lamp body 1 to control each lamp body 1.
[0047] like Figure 1 and Figure 2 As shown, the vehicle lighting device also includes a luggage rack 21 installed on the roof of the vehicle. The luggage rack 21 includes two frames 211, which extend in the front-to-back direction and are spaced apart in the left-to-right direction. Each of the two frames 211 has a lamp body 1 installed inside it.
[0048] Specifically, two frames 211 are independently positioned at the water channel of the vehicle's roof 22. The two frames 211 maintain a set distance in the left-right direction (lateral direction of the vehicle) to form a load-bearing structure. Each frame 211 has a hollow cavity or reserved installation space, and the lamp body 1 is integrally embedded inside this cavity, with its projection port 11 facing outwards from the frame 211, allowing the light emitted by the laser 12 of the lamp body 1 to be projected onto the ground through the projection port 11. In some scenarios, a sunroof 23 can be installed on the roof of the vehicle, with the two frames 211 positioned on the left and right sides of the sunroof 23 to avoid interference with it.
[0049] In this way, the lamp body 1 is deeply integrated into the frame 211 structure, rather than being externally mounted on the frame 211. The frame 211 can provide the lamp body 1 with a rigid, low-vibration, and high repeatability positioning accuracy installation reference, ensuring the stability of the optical emission path of the lamp body 1, and can also avoid affecting the overall shape and aerodynamic performance of the vehicle roof due to the arrangement of the lamp body 1.
[0050] like Figure 2 As shown, in some optional embodiments, lamp bodies 1 with only one projection port 11 are arranged at the front and rear ends of the two frames 211 respectively. The orientation of the projection ports 11 of the two lamp bodies 1 located at the front and rear ends of each frame 211 corresponds to the two adjacent sides of the vehicle in the circumferential direction. The orientation of the projection ports 11 of the two lamp bodies 1 located at the same end of the two frames 211 in the front-rear direction corresponds to the two adjacent sides of the vehicle in the circumferential direction.
[0051] Specifically, each of the four corners of the luggage rack 21 is equipped with a lamp body 1, which has only one projection port 11. The projection port 11 of the lamp body 1 at the front left faces forward (corresponding to the front projection port 11a) to project a bright area 3a in front. The projection port 11 of the lamp body 1 at the rear left faces left (corresponding to the left projection port 11b) to project a bright area 3b in left. The projection port 11 of the lamp body 1 at the front right faces right (corresponding to the right projection port 11d) to project a bright area 3d in right. The projection port 11 of the lamp body 1 at the rear right faces rear (corresponding to the rear projection port 11c) to project a bright area 3c in rear.
[0052] In this way, the four lamps 1 with single projection ports 11 arranged at the four corners of the luggage rack 21 can work together to form a front bright area 3a extending in the left and right direction, a left bright area 3b extending in the front and back direction, a right bright area 3d extending in the front and back direction, and a rear bright area 3c extending in the left and right direction, respectively. The four bright areas 3 can surround and form a visible light boundary around the vehicle.
[0053] like Figure 10 As shown, in some optional embodiments, a lamp body 1 with two projection ports 11 is arranged at the front end of one of the two frames 211 and the rear end of the other. One projection port 11 of the lamp body 1 at the front end faces the front side of the vehicle (corresponding to the front projection port 11a), and the other projection port 11 faces one of the left and right sides of the vehicle (for example, corresponding to the left projection port 11b). One projection port 11 of the lamp body 1 at the rear end faces the rear side of the vehicle (corresponding to the rear projection port 11c), and the other projection port 11 faces the other of the left and right sides of the vehicle (for example, corresponding to the right projection port 11d).
[0054] Specifically, the luggage rack 21 has two lamp bodies 1 with two projection ports 11 arranged at two diagonally opposite positions. One projection port 11 of the lamp body 1 at the front left side faces forward to project a bright area 3a at the front, and the other projection port 11 faces left to project a bright area 3b at the left. One projection port 11 of the lamp body 1 at the rear right side faces right to project a bright area 3d at the right, and the other projection port 11 faces rear to project a bright area 3c at the rear.
[0055] In this way, the lamp body 1 with only two double projection ports 11 can cover all four directions of the vehicle, including the front, rear, left and right, forming four bright areas 3. The four bright areas 3 can surround the vehicle to form a visible light boundary.
[0056] like Figure 3-7As shown, optionally, the frame 211 includes a main frame 2111 and end structures 2112 located at both ends of the main frame 2111 in the front-rear direction. The end structure 2112 includes a main body 21121 and a cover plate 21122. At least one of a plug-in connection structure and a fastening connection structure is provided between the main body 21121 and the main frame 2111. The cover plate 21122 is detachably connected to the main body 21121. At least one of the two end structures 2112 at both ends of the main frame 2111 is provided with a lamp body 1. The lamp body 1 is arranged in the mounting cavity 2113 formed between the main body 21121 and the cover plate 21122.
[0057] Specifically, a mounting cavity 2113 is formed between the main body 21121 of the end structure 2112 and the cover plate 21122. The mounting cavity 2113 can be equipped with a mounting seat as needed. The lamp body 1 is mounted on the mounting seat in the mounting cavity 2113, and the projection port 11 of the lamp body 1 is exposed outside the cover plate 21122, ensuring that the light emitted by the laser 12 of the lamp body 1 can be normally emitted to the outside of the end structure 2112.
[0058] In some scenarios, the main body 21121 of the end structure 2112 is provided with a plug-in part, and the main frame 2111 is provided with a plug-in mating part. The plug-in part and the plug-in mating part are plugged in and connected in the front-back direction, which can realize the rapid relative positioning of the end structure 2112 and the main frame 2111. Then, the end structure 2112 and the main frame 2111 are connected by fasteners, for example, those inserted from bottom to top.
[0059] The cover plate 21122 can be connected to the main body 21121 via a snap-fit structure, fastening structure, etc., which is not a limitation. The end structure 2112 and the main frame 2111 can be connected to the vehicle's roof 22 at the water channel. The main body 21121 of the end structure 2112 is connected to the roof 22, and the bottom of the main frame 2111 is provided with a connecting seat, which is connected to the vehicle's roof 22.
[0060] Thus, the end structure 2112 of the frame 211 can serve as a functional module integrating the lamp body 1. Its main body 21121 is rigidly connected to the vehicle roof 22 at the water channel. The mounting cavity 2113 formed by the cover plate 21122 and the main body 21121 provides installation and protection space for the lamp body 1, ensuring the directional stability of the projected beam. It also avoids abrupt changes in the shape of the luggage rack 21 due to the arrangement of the lamp body 1, ensuring the aerodynamic requirements of the vehicle roof. In addition, the laser module can be pre-installed at the vehicle manufacturer, quickly repaired at 4S stores, and customized by users by replacing the end structure 2112 as a whole. The structure is simple and highly practical.
[0061] Another embodiment of the present invention provides a vehicle including the vehicle lighting device as described in the above embodiment.
[0062] It should be noted that in some scenarios, the vehicle lighting device can be used independently. The vehicle lighting device can be separated from the vehicle's electronic system and can be turned on / off autonomously via local buttons, Bluetooth APP, or physical switch.
[0063] In some scenarios, the vehicle includes a vehicle controller, which is communicatively connected to a device controller 4 (which can be understood as a zone controller) for the vehicle's lighting system. The vehicle controller and device controller 4 can exchange information. The vehicle's lighting system can be controlled through the vehicle controller.
[0064] In some embodiments, the vehicle further includes at least one of a communication device, an environmental monitoring device, and an audible and visual alarm device. The vehicle controller is communicatively connected to the vehicle lighting device, the communication device, the environmental monitoring device, and the audible and visual alarm device, respectively. The communication device can be used to communicate with other vehicles.
[0065] Specifically, the communication device may include a Bluetooth communication device, a WIFI module, a mobile communication device, etc., which can be used to realize the interconnection of devices inside the vehicle and communication between vehicles.
[0066] Environmental monitoring devices include one or more of millimeter-wave radar, surround-view cameras, ultrasonic sensors, and infrared pyroelectric sensors, used to detect the presence, distance, and movement of people, animals, or objects around a vehicle. In some scenarios, they can provide the vehicle controller with information on whether to control the vehicle's lighting system to project light.
[0067] The audible and visual alarm device includes one or more of a buzzer, a warning light, and a display screen, and is used to provide auditory and auxiliary visual alarms. Under the control of the vehicle controller, it can complement the "bright area 3" of the vehicle lighting device.
[0068] In some scenarios, the vehicle controller can activate the warning function of the vehicle's lighting devices to form, for example, a rectangular area, and actively provide warning.
[0069] In some scenarios, the vehicle controller monitors the external environment through an environmental monitoring device. When it detects, for example, an animal approaching, the vehicle controller controls the vehicle's lighting system to project light in one or more directions, creating a bright area 3 on the ground as a warning. Simultaneously, an alarm can also be triggered via the vehicle's built-in audible and visual alarm system.
[0070] like Figure 11 As shown, embodiments of the present invention also provide a control method for a vehicle lighting device as described in the above embodiments, or for a vehicle as described in the above embodiments.
[0071] In some scenarios, the control method is used for the device controller 4 of the vehicle lighting device. In this case, the vehicle lighting device can be independent of the vehicle, and the vehicle lighting device can also obtain external information through the vehicle controller.
[0072] In some scenarios, control methods are used in vehicle controllers, such as vehicle controllers, which control the vehicle's lighting devices.
[0073] The control method includes: Step S1: Obtain control commands; Step S2: Control the light projection unit according to the obtained control command to project light through one or more projection ports 11; when the light projection unit projects light onto the ground through multiple projection ports 11 facing the front, rear, left and right sides, the light is projected onto the ground to form a bright area 3 that surrounds the vehicle.
[0074] It should be noted that the triggering method of the control command is not restricted. It can be triggered based on the user's selection or based on preset triggering logic, such as triggering when an animal is detected approaching.
[0075] Specifically, the light projection unit is controlled according to the obtained control command, which is actually to control the opening and closing combination of all projection ports 11 of the light projection unit. There are multiple opening and closing combinations of each projection port 11 of the light projection unit (open means that light is projected through the corresponding projection port 11, and closed means that light is not projected through the corresponding projection port 11). One combination is to enable all projection ports 11, that is, the light projection unit projects light onto the ground through multiple projection ports 11 facing the front, back, left and right sides.
[0076] This method possesses the beneficial effects of the aforementioned vehicle control device, allowing for flexible selection of the projection port 11 to project light in order to achieve the corresponding lighting control effect. For example, when light is projected onto the bright area 3 formed on the ground and surrounds the vehicle, a relatively complete visual warning boundary can be formed around the vehicle.
[0077] Optionally, the control command includes a control command to enter a linkage mode. In the linkage mode, the control method includes a master control method as the master control end and a slave control method as the slave control end.
[0078] Specifically, as the controlled vehicle, the controlled method includes: when a control command to enter the linkage mode is obtained, receiving a control command from the master vehicle, and controlling the light projection unit of the controlled vehicle according to the control command of the master vehicle.
[0079] As the master control vehicle, the master control method specifically includes: when a control command to enter the linkage mode is obtained, determining a control strategy, controlling the light projection unit of the master control vehicle according to the control strategy, and issuing a control command to the controlled vehicle to control the light projection unit of the controlled vehicle.
[0080] Specifically, the control strategy is typically determined based on lighting effect requirements, and can be manually specified or determined according to preset rules. When a control command to enter the linkage mode is received, it is usually necessary to obtain the relative position of the vehicle, and determine the control strategy based on the relative position and the corresponding lighting effect requirements. The control strategy is essentially the combination of opening and closing all projection ports 11 of the lighting projection units of the master control vehicle and all controlled vehicles connected in communication.
[0081] The linkage mode includes a campground surround mode. In the campground surround mode, the control strategy includes: causing the light projection units of the master control vehicle and the controlled vehicle to surround the bright area 3 formed on the ground by the light projection units of the master control vehicle and the controlled vehicle to surround the vehicle combination consisting of multiple vehicles.
[0082] Specifically, when multiple vehicles form a campsite, in the campsite encirclement mode, it is generally only necessary to ensure that the outermost projection port 11 is enabled, while the other projection ports 11 are closed, thus obtaining the opening and closing combinations of all projection ports 11. (See reference) Figure 12 It shows a bright area 3 surrounding a vehicle combination consisting of two vehicles, for reference. Figure 13 It shows a bright area 3 surrounding a combination of four vehicles.
[0083] Optionally, the control commands include control commands to enter rhythm mode.
[0084] The rhythmic mode includes: dynamically selecting the projection port 11 from all the projection ports 11 of the light projection unit according to a time sequence to project light, so that the projected light forms a rhythmic light effect on the ground.
[0085] Specifically, upon receiving a rhythm control command, one or more projection ports 11 are dynamically selected or rotated from all of its projection ports 11 (e.g., four projection ports 11 facing the front, back, left and right sides) according to a preset time sequence rule. By controlling the start and stop times, duration and light intensity changes of each projection port 11, the thin bright bands formed by each projection port 11 on the ground alternate between light and dark, move in position or flash synchronously according to a set rhythm, thereby synthesizing a rhythmic light effect with a sense of breathing, flow or pulse.
[0086] Rhythm mode can be used to create a camp atmosphere and enhance the camp experience.
[0087] It should be noted that the rhythm mode can be used for a single vehicle lighting device or multiple vehicle lighting devices. When used for multiple vehicle lighting devices, the rhythm mode can achieve the rhythm of multiple vehicle lighting devices through the linkage mode.
[0088] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.
Claims
1. A vehicle lighting device, characterized in that, The light projection unit includes a light projection unit installed on the vehicle, the light projection unit having multiple projection ports (11) respectively facing the front, rear, left and right sides of the vehicle, the light projection unit being configured to selectively project light onto the ground through one or more of the projection ports (11); when the light projection unit projects light onto the ground through the multiple projection ports (11) facing the front, rear, left and right sides, a bright area (3) formed on the ground surrounds the vehicle.
2. The vehicle lighting device as described in claim 1, characterized in that, The light projection unit includes multiple lamp bodies (1), which are disposed on the top of the vehicle. Each lamp body (1) includes one or more projection ports (11).
3. The vehicle lighting device as described in claim 2, characterized in that, The vehicle lighting device also includes a luggage rack (21) installed on the top of the vehicle. The luggage rack (21) includes two frames (211), which extend in the front-to-back direction and are spaced apart in the left-to-right direction. The lamp body (1) is installed inside each of the two frames (211).
4. The vehicle lighting device as described in claim 3, characterized in that, Each of the two frames (211) has a lamp body (1) with only one projection port (11) arranged at its front and rear ends. The projection ports (11) of the two lamp bodies (1) located at the front and rear ends of each frame (211) are oriented to the adjacent sides of the vehicle in the circumferential direction. The projection ports (11) of the two lamp bodies (1) located at the same end of the two frames (211) in the front and rear direction are oriented to the adjacent sides of the vehicle in the circumferential direction. Alternatively, one of the two frames (211) may have a lamp body (1) with two projection ports (11) at its front end and the other at its rear end. One projection port (11) of the lamp body (1) at the front end faces the front of the vehicle and the other projection port (11) faces either the left or right side of the vehicle. One projection port (11) of the lamp body (1) at the rear end faces the rear of the vehicle and the other projection port (11) faces either the left or right side of the vehicle.
5. The vehicle lighting device as described in claim 3, characterized in that, The frame (211) includes a main frame (2111) and end structures (2112) located at both ends of the main frame (2111) in the front-rear direction. The end structure (2112) includes a main body (21121) and a cover plate (21122). At least one of a plug-in connection structure and a fastening connection structure is provided between the main body (21121) and the main frame (2111). The cover plate (21122) is detachably connected to the main body (21121). At least one of the two end structures (2112) at both ends of the main frame (2111) is provided with a lamp body (1). The lamp body (1) is arranged in the mounting cavity (2113) formed between the main body (21121) and the cover plate (21122).
6. The vehicle lighting device as described in any one of claims 2 to 5, characterized in that, The lamp body (1) includes a laser (12) and a laser controller (13); the lamp body (1) also includes at least one of a blue light detector (14) and a temperature sensor (15), the laser controller (13) being electrically connected to the laser (12), the blue light detector (14) and the temperature sensor (15) respectively; the blue light detector (14) is located inside the housing of the lamp body (1) and is configured to monitor the intensity of blue light in the light emitted by the laser (12) of the lamp body (1) or the light reflected from the ground; the temperature sensor (15) is located inside the housing of the lamp body (1) to monitor the temperature of the laser (12); And / or, the light projected by the lamp body (1) through the projection port (11) is a line laser, and the bright area (3) formed by the line laser on the ground is a thin and bright band. The light projection unit includes four projection ports (11) facing the front, the rear, the left and the right respectively. When the light projection unit projects the line laser onto the ground through the four projection ports (11), the four thin and bright bands intersect to form a rectangular area surrounding the vehicle.
7. A vehicle, characterized in that, Includes the vehicle lighting device as described in any one of claims 1 to 6.
8. The vehicle as described in claim 7, characterized in that, The vehicle also includes a vehicle controller, and at least one of a communication device, an environmental monitoring device, and an audible and visual alarm device. The vehicle controller is communicatively connected to the vehicle lighting device, the communication device, the environmental monitoring device, and the audible and visual alarm device, respectively. The communication device is used to communicate with other vehicles.
9. A control method, characterized in that, For a vehicle lighting device as described in any one of claims 1 to 6, or for a vehicle as described in any one of claims 7 to 8, the control method comprises: Obtain control commands; The light projection unit is controlled according to the obtained control command to project light through one or more projection ports (11); when the light projection unit projects light onto the ground through multiple projection ports (11) facing the front, rear, left and right sides, the light is projected onto the ground to form a bright area (3) that surrounds the vehicle.
10. The control method as described in claim 9, characterized in that, The control command includes at least one of the control command to enter the linkage mode and the control command to enter the rhythm mode; In the linkage mode, the control method includes a master control method for the master control vehicle and a slave control method for the slave vehicle. The controlled method specifically includes: when a control command to enter the linkage mode is obtained, receiving a control command from the master control vehicle, and controlling the light projection unit of the controlled vehicle according to the control command of the master control vehicle; The main control method specifically includes: when a control command to enter the linkage mode is obtained, a control strategy is determined, the light projection unit of the main control vehicle is controlled according to the control strategy, and a control command is issued to the controlled vehicle to control the light projection unit of the controlled vehicle. The linkage mode includes a campground surround mode. In the campground surround mode, the control strategy includes: making the bright area (3) formed on the ground by the light projection unit of the master control vehicle and the controlled vehicle surround the vehicle combination consisting of multiple vehicles. The rhythmic mode includes: dynamically selecting the projection port (11) for projecting light from all the projection ports (11) of the light projection unit according to a time sequence, so that the projected light forms a rhythmic light effect on the ground.