Vehicle-mounted projection system and vehicle

Abstract

The invention is suitable for the technical field of vehicle-mounted projection systems, and provides a vehicle-mounted projection system and a vehicle, the vehicle-mounted projection system comprises a plurality of projection modules arranged around a vehicle body of the vehicle, the projection modules are used for responding to control signals generated according to preset trigger conditions, and the control signals are used for controlling the vehicle body of the vehicle. Projecting an interaction picture to a corresponding projection area in the external environment of the vehicle; wherein the projection areas of the plurality of projection modules can surround and cover the periphery of the vehicle body by 360 degrees after being combined, the preset trigger condition comprises at least one of running dynamic data of the vehicle, the external environment data and a user instruction, and the interactive picture is used for an external target to obtain the running dynamic state of the vehicle. The external target includes at least one of an external person and an external vehicle. According to the method, at least one external target in external personnel and external vehicles can obtain the running dynamic state of the vehicle according to the interaction picture, the safety of the vehicle is improved, and the intelligent interaction application scene of the vehicle is enriched.

Description

Technical Field

[0001] This application belongs to the field of vehicle projection system technology, and particularly relates to a vehicle projection system and vehicle. Background Technology

[0002] In recent years, intelligent vehicle technology has developed rapidly. Intelligent vehicles integrate functions such as environmental perception, planning and decision-making, and multi-level assisted driving, which can improve vehicle safety and comfort and provide a superior human-vehicle interaction interface. However, existing in-vehicle interaction systems, such as head-up displays, are usually only used to display instrument information and road navigation information on the windshield. The interaction application scenarios are limited and cannot meet users' growing demand for intelligent in-vehicle interaction systems. Summary of the Invention

[0003] In view of this, embodiments of this application provide an in-vehicle projection system and a vehicle, aiming to solve the problem that existing in-vehicle interactive systems have limited interactive application scenarios and cannot meet users' growing demand for intelligent in-vehicle interactive systems.

[0004] A first aspect of this application provides an in-vehicle projection system, comprising: Multiple projection modules are installed around the vehicle body. The projection modules are used to project interactive images onto corresponding projection areas in the external environment of the vehicle in response to control signals generated according to preset trigger conditions. The projection areas of the multiple projection modules can be combined to cover the vehicle body in 360°. The preset triggering conditions include at least one of the vehicle's dynamic operation data, the external environment data, and user commands. The interactive screen is used by external targets to obtain the vehicle's dynamic operation data. The external targets include at least one of external personnel and external vehicles.

[0005] In one embodiment, multiple projection modules are disposed around the vehicle body, and the projection modules are used to project interactive images onto corresponding projection areas in the external environment of the vehicle in response to control signals generated according to preset trigger conditions. The projection areas of the multiple projection modules can be combined to cover the vehicle body in 360°. The preset triggering conditions include at least one of the vehicle's dynamic operation data, the external environment data, and user commands. The interactive screen is used by external targets to obtain the vehicle's dynamic operation data. The external targets include at least one of external personnel and external vehicles.

[0006] In one embodiment, each door of the vehicle corresponds to at least one of the projection modules; At least one of the projection modules corresponding to any of the vehicle doors is used for: In response to a first control signal generated according to a first preset trigger condition, an interactive screen is projected to warn an external target that any of the vehicle doors is about to open. The first preset trigger condition includes determining that any of the vehicle doors is about to open from the inside based on the dynamic data of the operation or the user instruction. And / or, in response to a second control signal generated according to a second preset trigger condition, an interactive screen for welcoming occupants is projected, the second preset trigger condition including determining, based on the external environment data or the user instruction, that any door is to be opened from the outside.

[0007] In one embodiment, the plurality of projection modules are used for: In response to a third control signal generated according to a third preset trigger condition, an interactive screen representing the preset parking trajectory of the vehicle is projected onto the external environment around the vehicle body. The third preset trigger condition includes determining that the vehicle is in a parking state based on the dynamic data of operation or the user instruction. And / or, in response to a fourth control signal generated according to a fourth preset trigger condition, an interactive screen representing a preset travel trajectory of the vehicle is projected onto the external environment around the vehicle body, wherein the fourth preset trigger condition includes determining that the vehicle is in a traveling state based on the running dynamic data or the user instruction.

[0008] In one embodiment, the vehicle-mounted projection system further includes: The detection module is used to detect the external environment and obtain corresponding external environment data; The control module is communicatively connected to the projection module and the detection module, and is used to determine the preset triggering condition and generate a corresponding control signal based on at least one of the vehicle's dynamic operating data, the external environment data and user instructions.

[0009] In one embodiment, the plurality of projection modules includes at least one first projection module that is reused as an external lighting lamp for the vehicle. The first projection module includes a first display chip, which includes multiple pixels. The first projection module is used to control the lighting state of each pixel in the first display chip in response to a control signal generated according to a preset trigger condition, so as to adjust the brightness of the interactive screen projected by the first projection module.

[0010] In one embodiment, the plurality of projection modules include four first projection modules that are respectively reused as the left front lighting lamp, right front lighting lamp, left rear lighting lamp, and right rear lighting lamp of the vehicle.

[0011] In one embodiment, the first projection module is further configured to adjust its own lighting mode in response to a control signal generated according to a preset trigger condition; The brightness of the interactive screen projected by the first projection module varies under different lighting modes.

[0012] In one embodiment, the lighting mode includes a full lighting mode and a local lighting mode, and the control signal generated according to the preset triggering conditions includes a full lighting control signal and a local lighting control signal; The first projection module is used for: In response to the full illumination control signal, all pixels in the first display chip are controlled to light up, thereby realizing the full illumination mode; In response to the local lighting control signal, some pixels in the first display chip are controlled to light up, thereby realizing the local lighting mode.

[0013] In one embodiment, the first display chip includes multiple groups of pixels, each group of pixels including at least one pixel and corresponding to a local projection area in the external environment; The first projection module is also used for: In response to a control signal generated according to a fifth preset trigger condition, a set of pixels corresponding to any local projection area is turned off. The fifth preset trigger condition includes determining that an external target exists in any local projection area based on the external environment data or the user instruction. In response to a control signal generated according to a sixth preset trigger condition, a set of pixels corresponding to any local projection area are controlled to light up. The sixth preset trigger condition includes determining, based on the external environment data or the user instruction, that there is no external target in any local projection area.

[0014] In one embodiment, the plurality of projection modules includes at least two second projection modules disposed on the left and right sides of the vehicle body; The second projection module includes a second display chip and a second imaging system module, the second imaging system module including a wide-angle lens.

[0015] In one embodiment, the plurality of projection modules includes two sets of second projection modules, which are respectively disposed on the left and right sides of the vehicle body. Each set of second projection modules includes m second projection modules spaced apart from each other with adjustable spacing. By adjusting the spacing between n second projection modules in each set of second projection modules, the position and size of the projection area covered by the field of view of each set of projection modules can be adjusted, where m≥n≥2.

[0016] In one embodiment, each group of the second projection modules can project k different interactive images to the same projection area located on the same side of the vehicle body, the same projection area including overlapping areas and non-overlapping areas, where m≥k≥2.

[0017] In one embodiment, the second projection module includes a second display chip, the second display chip includes a plurality of pixels, and the sum of the brightness of the pixels corresponding to the overlapping area is less than or equal to the sum of the brightness of the pixels corresponding to the non-overlapping area.

[0018] In one embodiment, each group of the second projection modules is used to project at least two different warning images to the same projection area located on the same side of the vehicle body in response to a control signal generated according to a seventh preset trigger condition. The seventh preset trigger condition includes the pre-opening of a door located on the same side of the vehicle body as each group of the second projection modules, and the at least two different warning images include at least two of dynamic or static graphics, images, icons, and text.

[0019] In one embodiment, the vehicle-mounted projection system further includes a rotatable freeform mirror corresponding to the projection module; The projection module includes a display chip and an imaging system module; The freeform mirror is used to rotate a corresponding angle in response to a control signal generated according to the preset triggering condition, so as to adjust the distance and size of at least two local projection areas covered by the viewing area of ​​the corresponding projection module.

[0020] A second aspect of this application provides a vehicle including the in-vehicle projection system of the first aspect.

[0021] The vehicle projection system provided in the first aspect of this application provides a system in which multiple projection modules are set around the vehicle body. Each projection module can respond to a control signal generated based on at least one preset trigger condition among the vehicle's dynamic operation data, the external environment data, and user instructions, to project an interactive screen onto a corresponding projection area in the vehicle's external environment. The projection areas of the multiple projection modules can be combined to cover the vehicle body in 360°, enabling at least one external target, such as external personnel or external vehicles, to obtain the vehicle's dynamic operation based on the interactive screen, thereby improving vehicle safety and enriching the intelligent interactive application scenarios of the vehicle.

[0022] It is understandable that the beneficial effects of the second aspect mentioned above can be found in the relevant descriptions in the first aspect mentioned above, and will not be repeated here. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the basic structure of an in-vehicle projection system provided in one embodiment of this application; Figure 2 This is a schematic diagram illustrating an application scenario of an in-vehicle projection system provided in one embodiment of this application; Figure 3 This is a schematic diagram illustrating an application scenario of an in-vehicle projection system provided in another embodiment of this application; Figure 4 This is a schematic diagram illustrating an application scenario of an in-vehicle projection system provided in another embodiment of this application; Figure 5 This is a schematic diagram illustrating an application scenario of an in-vehicle projection system provided in another embodiment of this application; Figure 6 This is a schematic diagram illustrating an application scenario of an in-vehicle projection system provided in another embodiment of this application; Figure 7 This is a schematic diagram of an application scenario for an in-vehicle projection system provided in another embodiment of this application. Detailed Implementation

[0025] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the invention with unnecessary detail.

[0026] Furthermore, in the description of this invention and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of the invention include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized. The terms "a plurality of," and variations thereof mean "two or more."

[0028] like Figure 1 As shown, this application provides an in-vehicle projection system, including: Multiple projection modules 10 are arranged around the vehicle body. Each projection module 10 has the function of projecting interactive screens onto the corresponding projection area in the external environment of the vehicle in response to control signals generated according to preset trigger conditions. The projection module 10 responds to different control signals and can project different interactive screens to the same projection area or project the same interactive screen to different projection areas. The projection areas of any two adjacent projection modules 10 can be seamlessly spliced, spliced ​​with seams, partially superimposed, or fully superimposed, so that the projection areas of multiple projection modules 10 can be combined to cover the vehicle body in 360°. The preset trigger conditions include at least one of the vehicle's dynamic operation data, external environment data, and user commands. The interactive screen is used for external targets to obtain the vehicle's dynamic operation. External targets include at least one of external personnel and external vehicles.

[0029] In applications, the projection module 10 can be placed at any location on the vehicle body as needed, as long as it can respond to control signals to project interactive images onto the corresponding projection area in the vehicle's external environment. The projection module 10 can be implemented based on technologies such as Digital Micromirror Device (DMD), Liquid Crystal on Silicon (LCOS), Micro LED (uLED), and Laser Beam Scanning (LBS).

[0030] In applications, external environment data may include, but is not limited to: ambient brightness data detected by ambient brightness sensors, human presence detection data indicating the presence or absence of external personnel (e.g., pedestrians, drivers and passengers) detected by human body sensors, LiDAR, or machine vision cameras, and vehicle presence detection data indicating the presence or absence of external vehicles (e.g., manned vehicles, or driverless cars, food delivery robots, express delivery robots, etc.) detected by vehicle detection sensors, LiDAR, or machine vision cameras.

[0031] In applications, vehicle operation dynamic data includes, but is not limited to, data related to the vehicle's driving status (straight ahead, changing lanes, turning, etc.), start / stop status, parking status, the open / closed status of each door, and the illumination status of each light. User commands are instructions input by users (e.g., vehicle occupants, maintenance personnel) through human-machine interface devices.

[0032] In the application, each projection module 10 can respond to control signals generated according to different preset trigger conditions and project an interactive screen with corresponding characteristic attributes onto a corresponding projection area in the vehicle's external environment. The characteristic attributes of the interactive screen include size, shape, brightness, and content. The content may include at least one of text, graphics, and images, and the graphics may be icons.

[0033] like Figure 1 As shown, in one embodiment, the vehicle-mounted projection system further includes: Detection module 20 is used to detect the external environment and obtain corresponding external environment data; The control module 30 is communicatively connected to the projection module 10 and the detection module 20. It is used to determine the preset trigger conditions and generate the corresponding control signals based on at least one of the vehicle's dynamic operation data, external environment data and user instructions, so as to control the projection module 10 to project the corresponding interactive screen to the corresponding projection area in the vehicle's external environment.

[0034] In application, the detection module 20 can be set at any position on the vehicle body according to actual needs, as long as it can detect the external environment, obtain the corresponding external environment data, and send it to the control module 30. The detection module 20 can be implemented based on various sensors such as ambient light sensor (ALS), human body sensor, vehicle sensor, LiDAR (Light Detection and Ranging), machine vision camera, etc. Among them, the human body sensor can be a passive infrared sensor (PIR), microwave sensor, ultrasonic sensor, pyroelectric sensor, etc., and the vehicle sensor can be a passive infrared sensor, microwave sensor, ultrasonic sensor, etc.

[0035] In application, the control module 30 can be implemented based on the vehicle's existing in-vehicle infotainment system (e.g., the in-vehicle infotainment system's processor, and may also include the in-vehicle infotainment system's human-machine interface device or a communication connection with an external human-machine interface device). The control module can also be an additional control device added to the vehicle. The control device may include a processor and a human-machine interface device. The processor can be a Central Processing Unit (CPU), other general-purpose processors, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor. Human-machine interface devices may include voice control devices, voice broadcasting devices, physical or touch buttons, displays, touchscreens, etc. The control module 30 can control each projection module 10 to project interactive images with corresponding characteristic attributes to the corresponding projection area in the vehicle's external environment according to different preset trigger conditions.

[0036] In one embodiment, each door of the vehicle corresponds to at least one projection module 10; Control module 30 is used for: If it is determined that any door is to be opened from the inside based on the vehicle's dynamic operation data or user instructions, a first preset trigger condition is determined to be met, and a first control signal is generated based on the first preset trigger condition to control at least one projection module 10 corresponding to the door to project an interactive screen to warn external personnel that the door is to be opened. And / or, if it is determined from external environmental data or user instructions that any door is to be opened from the outside, a second preset trigger condition is determined to be met, and a second control signal is generated according to the second preset trigger condition to control at least one projection module 10 corresponding to the door to project an interactive screen for welcoming passengers. Correspondingly, at least one projection module 10 corresponding to any of the car doors is used for: In response to a first control signal generated according to a first preset trigger condition, an interactive screen is projected to warn an external target that any of the vehicle doors is about to open. The first preset trigger condition may include, but is not limited to, determining that any of the vehicle doors is about to open from the inside based on dynamic data or user instructions. Users can set the first preset condition by inputting corresponding user instructions through the human-machine interaction device according to actual needs. And / or, in response to a second control signal generated according to a second preset trigger condition, an interactive screen for welcoming occupants is projected. The second preset trigger condition includes, but is not limited to, determining that any door is to be opened from the outside based on external environmental data or user instructions. Users can set the second preset condition by inputting corresponding user instructions through the human-machine interaction device according to actual needs.

[0037] In application, the number of projection modules 10 corresponding to each car door can be set according to actual needs, such as one, two, three, etc. The projection module 10 corresponding to each car door can be set in the interlayer of the corresponding car door.

[0038] In the application, for any car door, the control module 30 can determine whether the door is to be opened from the inside based on the vehicle's dynamic operating data (e.g., the vehicle's start-stop status data, and the working status data of the handle or electric door opening button inside the door) or user instructions (internal opening instructions input by the user inside the vehicle corresponding to the door). If the vehicle is parked (including both parked and engine-off states) and the handle inside the door is pulled or the electric door opening button is turned on, or if the user inside the vehicle inputs an internal opening instruction corresponding to the door, then it is determined that the door is to be opened from the inside. In this case, at least one projection module 10 corresponding to the door projects an interactive screen (e.g., at least one of the text, graphics, or images meaning "open door") to warn external targets of the vehicle that the door is to be opened, thereby alerting external targets to avoid the opening area of ​​the door and preventing collision accidents.

[0039] In the application, for any car door, the control module 30 can determine whether the car door is to be opened from the outside based on the vehicle's external environment data (e.g., human presence detection data within a preset human detection area outside the car door, the size of which can be set according to actual needs) or user instructions (an external opening instruction input by a user outside the vehicle corresponding to the car door). If a driver or passenger is detected within the preset human detection area outside the car door, or if an external opening instruction is input by a user outside the vehicle corresponding to the car door, then the car door is determined to be to be opened from the outside. In this case, at least one projection module 10 corresponding to the car door is controlled to project an interactive screen (e.g., at least one of text, graphics, or images meaning "welcome") to welcome the external driver or passenger, thereby realizing interaction between the vehicle and the driver or passenger and enhancing the driving experience.

[0040] In one embodiment, the control module 30 is used for: When the vehicle is determined to be in a parking state based on the vehicle's dynamic operating data or user instructions, the third preset trigger condition is determined to be met. A third control signal is generated based on the third preset trigger condition to control multiple projection modules 10 around the vehicle to project an interactive screen representing the vehicle's preset parking trajectory to the external environment around the vehicle. And / or, when it is determined that the vehicle is in motion based on the vehicle's dynamic operating data or user instructions, the fourth preset trigger condition is determined to be met, and a fourth control signal is generated based on the fourth preset trigger condition to control multiple projection modules 10 around the vehicle to project an interactive screen representing the vehicle's preset travel trajectory to the external environment around the vehicle. Correspondingly, the multiple projection modules 10 around the vehicle body are used for: In response to a third control signal generated based on a third preset trigger condition, an interactive screen representing the vehicle's preset parking trajectory is projected onto the external environment around the vehicle. The third preset trigger condition may include, but is not limited to, determining that the vehicle is in a parking state based on dynamic operating data or user instructions. Users can set the third preset condition by inputting corresponding user instructions through the human-machine interaction device as needed. And / or, in response to a fourth control signal generated according to a fourth preset trigger condition, an interactive screen representing the vehicle's preset travel trajectory is projected onto the external environment around the vehicle. The fourth preset trigger condition includes, but is not limited to, determining that the vehicle is in motion based on dynamic operating data or user instructions. The user can set the fourth preset condition by inputting corresponding user instructions through the human-machine interaction device as needed.

[0041] In application, the number of multiple projection modules 10 set around the vehicle body can be set according to actual needs, such as four, five, six, eight, nine, etc., which may include projection modules 10 corresponding to each door, so as to realize the reuse of projection modules 10, thereby reducing the total number of projection modules 10, and thus simplifying the structure of the vehicle projection system and saving component costs, wiring costs and maintenance costs.

[0042] In the application, the control module 30 can determine whether the vehicle is in a parking state (e.g., manual parking, fully automatic parking, or intelligent parking assist state) or a moving state based on the vehicle's dynamic operating data (e.g., wheel speed data, wheel steering angle data, and driving assistance system operating status data) or user commands. If the vehicle is in a parking state, the control module 30 controls multiple projection modules 10 around the vehicle to project interactive screens representing the vehicle's preset parking trajectory (e.g., at least one of text, graphics, or images meaning "reverse," "forward," "left turn," "right turn," etc.) onto the external environment around the vehicle. If the vehicle is in a moving state, the control module 30 controls multiple projection modules 10 around the vehicle to project interactive screens representing the vehicle's preset driving trajectory (e.g., straight driving trajectory, lane changing trajectory, turning trajectory) (e.g., at least one of text, graphics, or images meaning "stop waiting," "straight driving," "left turn," "right turn," etc.) onto the external environment around the vehicle to alert external targets and allow them to take evasive action in advance, thereby avoiding the vehicle's preset parking trajectory or preset driving trajectory and preventing dangerous accidents. The preset parking trajectory and preset driving trajectory are predicted by the driver assistance system based on the vehicle's dynamic operating data and external environment data (e.g., external target presence detection data, obstacle data around the vehicle, real-time traffic data, etc.).

[0043] like Figure 2 As shown, in one embodiment, the vehicle projection system includes at least one first projection module 200 that is reused as an external lighting lamp for a vehicle. The first projection module 200 includes a first display chip 201, which includes multiple pixels. The first projection module 200 may also include a first imaging system module 202, which includes multiple lenses. Control module 30 ( Figure 2 (not shown in the image) is used to generate control signals according to preset trigger conditions to control the lighting state of each pixel in the first projection module 200, thereby adjusting the brightness of the interactive screen projected by the first projection module 200. Correspondingly, the first projection module 200 is used to control the lighting state of each pixel in its first display chip 201 in response to the control signal generated according to the preset trigger conditions, so as to adjust the brightness of the interactive screen projected by itself.

[0044] In the application, at least one first projection module 200, which is reused as the external lighting lamp of a vehicle, includes at least one of the vehicle's left front lighting lamp, right front lighting lamp, left rear lighting lamp, and right rear lighting lamp. Figure 2 An exemplary vehicle projection system is shown, comprising four first projection modules 200, which are reused as the left front lighting lamp, right front lighting lamp, left rear lighting lamp, and right rear lighting lamp of a vehicle, respectively, and are disposed on the vehicle body frame 100.

[0045] In the application, the control module 30 can control the illumination state (on or off, and brightness when on) of each pixel in the first projection module 200 based on the vehicle's dynamic operating data (e.g., start-stop status data), external environment data (e.g., external ambient brightness data), and user commands (dimming commands input by the user inside the vehicle to control the brightness of the external lighting headlights). This adjusts the overall brightness of the interactive screen projected by the first projection module 200, allowing it to function as both an external lighting headlight and a projector for interactive screens (e.g., interactive screens representing preset parking or driving trajectories). The control module 30 can control the brightness of each pixel by controlling the switching frequency of each pixel in the first display chip 201. In the application, the first display chip 201 can be implemented based on a pixel chip integrating tens to millions of pixels, used to display interactive screens containing simple information indicators or detailed content. The first imaging system module 202 can be implemented based on multiple lenses (e.g., wide-angle lenses), collimating devices, reflective devices, etc., and is used to project the interactive screen displayed by the first display chip 201 onto the external environment (e.g., the ground) at a preset size. The preset size can be set by the user based on the human-computer interaction device of the control module 30 according to actual needs or by using the default setting.

[0046] In one embodiment, the control module 30 is further configured to adjust the lighting mode of the first projection module 200 according to a preset trigger condition; Correspondingly, the first projection module 200 is also used to adjust its own lighting mode in response to a control signal generated according to a preset trigger condition; The brightness of the interactive screen projected by the first projection module 200 varies under different lighting modes.

[0047] In applications, the first projection module 200 includes a variety of different lighting modes, such as full illumination mode, partial illumination mode, low beam mode, high beam mode, fog light mode, etc.

[0048] In one embodiment, the lighting modes of the first projection module 200 include full lighting mode, partial lighting mode, low beam mode, high beam mode and fog light mode, and the control signals generated according to preset trigger conditions include full lighting control signal, partial lighting control signal, low beam control signal, high beam control signal and fog light control signal. Control module 30 is used for: In full illumination mode, a full illumination control signal is generated to control all pixels in the first projection module 200 to be lit. In local lighting mode, a local lighting control signal is generated to control the illumination of some pixels in the first projection module 200; In low beam mode, a low beam control signal is generated to control the partial pixels in the first projection module 200 that can be used as low beams to be lit up and the overall brightness reaches more than 1000 lumens. In high beam mode, a high beam control signal is generated to control some pixels in the first projection module 200 that can be used as high beams to light up and the brightness reaches more than 1450 lumens. In fog light mode, a fog light control signal is generated to control some pixels in the first projection module 200 that can be used as fog lights to light up and the brightness reaches more than 3000 lumens. Correspondingly, the first projection module 200 is used for: In response to the full illumination control signal, it controls all pixels in its first display chip 201 to light up in order to achieve full illumination mode; In response to a local lighting control signal, some pixels in the first display chip 201 are controlled to light up in order to achieve a local lighting mode; In response to the low beam control signal, the system controls some pixels in its first display chip 201 that can be used as low beams to light up and the overall brightness reaches more than 1000 lumens to achieve low beam mode. In response to the high beam control signal, the first display chip 201 controls some pixels that can be used as high beams to light up and the overall brightness reaches more than 1450 lumens to realize the high beam mode. In response to the fog light control signal, the system controls the first display chip 201 to illuminate some pixels that can be used as fog lights, and the overall brightness reaches more than 3000 lumens to achieve fog light mode.

[0049] like Figure 3 As shown, in one embodiment, the first display chip 201 includes multiple groups of pixels 2011, each group of pixels 2011 including at least one pixel and corresponding to a local projection area 211 in the external environment 210; Detection module 20 ( Figure 3(not shown in the image), used to detect whether there are external targets in each local projection area 211, and to obtain the corresponding external environment data; Control module 30 ( Figure 3 (Not shown in the image) is used to determine that a fifth preset trigger condition is met when any local projection area 211 has an external target based on external environment data or user instructions, and to generate a fifth control signal based on the fifth preset trigger condition to control a group of pixels 2011 corresponding to any local projection area 211 to turn off; and to determine that a sixth preset trigger condition is met when any local projection area 211 does not have an external target based on external environment data or user instructions, and to generate a sixth control signal based on the sixth preset trigger condition to control a group of pixels corresponding to any local projection area 211 to light up. The first imaging system module 202 is used to project the corresponding image onto the local projection area 211 when a set of pixels corresponding to any local projection area 211 is lit. Correspondingly, the first projection module 200 is also used for: In response to the control signal generated according to the fifth preset trigger condition, control a group of pixels corresponding to any local projection area 211 to turn off. The fifth preset trigger condition includes, but is not limited to, determining that there is an external target in any local projection area based on external environment data or user instructions. The user can set the fifth preset condition by inputting corresponding user instructions through the human-machine interaction device according to actual needs. In response to the control signal generated according to the sixth preset trigger condition, control the lighting of a group of pixels corresponding to any local projection area 211. The sixth preset trigger condition includes, but is not limited to, determining that there is no external target in any local projection area based on external environment data or user instructions. The user can set the sixth preset condition by inputting corresponding user instructions through the human-machine interaction device according to actual needs.

[0050] In the application, the detection module 20 may include at least one of a human body sensor, a vehicle detection sensor, a lidar, and a machine vision camera, for detecting whether there are external personnel and external vehicles in each local projection area 211, and obtaining corresponding human presence detection data and vehicle presence detection data.

[0051] In application, the control module 30 can, based on human presence detection data and vehicle presence detection data, or user instructions (e.g., instructions input by the driver or passenger inside the vehicle through the human-machine interface device of the control module 30 when an external target (e.g., an external person or vehicle) is detected in any local projection area 211), control a set of pixels 2011 corresponding to that local projection area 211 to turn off. Conversely, based on human presence detection data and vehicle presence detection data, or user instructions (e.g., instructions input by the driver or passenger inside the vehicle through the human-machine interface device of the control module 30 when no external target is detected in any local projection area 211), control a set of pixels corresponding to that local projection area 211 to light up. This allows for the automatic activation or deactivation of some pixels based on the presence or absence of pedestrians or vehicles in the external environment, preventing high-brightness lights from directly shining into people's eyes or interfering with vehicle driving when pedestrians or vehicles are present, thus avoiding potential dangerous accidents and reducing safety hazards. By controlling only the pixels corresponding to the local projection area 211 with external targets to turn off, while the pixels corresponding to other local projection areas 211 without external targets continue to light up, the entire first display chip 201 can still display interactive images normally and project them onto other local projection areas 211 through the first imaging system module 202. This can reduce safety hazards and enable interaction with external targets (e.g., warnings).

[0052] like Figure 4 As shown, in one embodiment, the vehicle projection system includes at least two second projection modules 300 disposed on the left and right sides of the vehicle body 100. The second projection module 300 includes a second display chip 301 and a second imaging system module 302, the second imaging system module 302 including a wide-angle lens.

[0053] In the application, by setting up second projection modules 300 on the left and right sides of the vehicle body 100, external targets located on the left and right sides of the vehicle body 100 can obtain the vehicle's dynamic operation based on the interactive screen projected onto the external environment (e.g., the ground) on the left and right sides of the vehicle body 100 by the second projection modules 300. This allows them to obtain information such as the vehicle's driving status (straight ahead, changing lanes, turning, etc.), start / stop status, parking status, and the opening / closing status of each door on the left and right sides. A wide field of view can be achieved by using a wide-angle lens.

[0054] In application, the number of second projection modules 300 on the left and right sides of the vehicle body 100 can be set according to actual needs, such as one, two, or three on each side. The number of second projection modules on each side of the vehicle body 100 can be different. The second projection module 300 on each side can be set in the interlayer of the corresponding side door (the projection module corresponding to each door can be reused), the B-pillar, or other positions near the B-pillar. The field of view of the wide-angle lens can be set to any angle above 100° or 150° according to actual needs, such as 100°, 120°, 150°, 180°, etc. Figure 4 The example shows that a second projection module 300 is provided on each of the B-pillars on the left and right sides of the vehicle body 100, and the field of view of the wide-angle lens is more than 150°.

[0055] like Figure 5 As shown, in one embodiment, a set of second projection modules 300 is provided on the left and right sides of the vehicle body 100, and each set of second projection modules 300 includes m second projection modules 300 spaced apart from each other and with adjustable spacing. Control module 30 ( Figure 5 (not shown in the image) is used to adjust the spacing between n second projection modules 300 in each group of second projection modules 300 according to preset trigger conditions, so as to adjust the position and size of the projection area covered by the viewing field of each group of second projection modules 300, where m≥n≥2.

[0056] In applications, when the second imaging system module 302 of the second projection module 300 uses a wide-angle lens, the large field of view of the second projection module 300 will cause significant distortion and deformation of the projected interactive image, resulting in a noticeable decrease in the clarity and other indicators of the interactive image. Furthermore, when the vehicle body 100 is long (e.g., over 4m), more wide-angle lenses are needed to improve the projection effect, mitigate distortion, and enhance clarity. By setting a group of projection modules containing m second projection modules 300 on each of the left and right sides of the vehicle body 100, the adjustable range of the spacing between the n second projection modules 300 in each group can be customized according to the vehicle layout. By adjusting the spacing of the n second projection modules 300 in each group, the position and size of the projection area covered by the field of view of each group can be adjusted, thereby achieving arbitrary size or omnidirectional field of view coverage and realizing a richer and wider projection effect.

[0057] In one embodiment, the control module 30 is configured to control each group of second projection modules 300 to project k different interactive images to the same projection area located on the same side of the vehicle body 100 according to preset trigger conditions. The same projection area may include overlapping areas and / or non-overlapping areas, where m≥k≥2.

[0058] In application, the content, position and size of the interactive screen projected by each second projection module 300 in each group of second projection modules 300 can be controlled in a coordinated manner. At least two different interactive screens can be projected in the overlapping field of view of k second projection modules 300 in each group of second projection modules 300 to form a combined overlapping interactive screen, thereby achieving a richer overlapping projection effect.

[0059] In one embodiment, the second display chip 301 includes a plurality of pixels, wherein the sum of the brightness of the pixels corresponding to the overlapping area is less than or equal to the sum of the brightness of the pixels corresponding to the non-overlapping area.

[0060] In application, when it is necessary to highlight the overlapping area, the pixels of the overlapping area corresponding to each of the k second projection modules 300 can be controlled to light up at a first switching frequency, so that the overlapping area as a whole displays a higher first brightness. The non-overlapping areas corresponding to each of the k second projection modules 300 can be controlled to light up at a second switching frequency, so that the non-overlapping areas as a whole display a lower second brightness. This achieves that the overlapping area is displayed with a higher brightness than the non-overlapping area, where k * first switching frequency > second switching frequency, and first brightness > second brightness.

[0061] In applications, when a large image with uniform brightness needs to be displayed, and the overlapping area does not need to be displayed with higher brightness than the non-overlapping area, the pixels of the overlapping area corresponding to each of the k second projection modules 300 can be controlled to light up at a third switching frequency, and the pixels of the non-overlapping area corresponding to each of the k second projection modules 300 can be controlled to light up at a fourth switching frequency, so that both the overlapping and non-overlapping areas can display the third brightness as a whole, and the overlapping and non-overlapping areas can maintain the consistency of brightness. Here, k * third switching frequency = fourth switching frequency, and third brightness = fourth brightness.

[0062] In application, when it is necessary to weaken the display of overlapping areas, the pixels of the overlapping area corresponding to each of the k second projection modules 300 can be controlled to light up at the fifth switching frequency, so that the overlapping area as a whole displays a lower fourth brightness. The non-overlapping areas corresponding to each of the k second projection modules 300 can be controlled to light up at the sixth switching frequency, so that the non-overlapping areas as a whole display a higher fifth brightness. This achieves the overlapping area being displayed with a lower brightness than the non-overlapping area, where k * fifth switching frequency < sixth switching frequency, and fourth brightness < fifth brightness.

[0063] In one embodiment, the control module 30 is configured to determine that a seventh preset condition is met when the door on any side of the vehicle body 100 is pre-opened according to a preset trigger condition, and generate a seventh control signal according to the seventh preset trigger condition, so as to control a set of second projection modules 300 located on the corresponding side of the door to project at least two different warning images to the same projection area on the same side of the vehicle body. Correspondingly, each second projection module 300 is used to project at least two different warning images onto the same projection area on the same side of the vehicle body in response to a seventh control signal generated according to a seventh preset trigger condition; wherein the at least two different warning images include at least two of dynamic or static graphics, images, icons, and text.

[0064] In applications, when it is necessary to project important warning images, at least one set of second projection modules 300 can be controlled to project at least two different warning images to the same projection area to reinforce the warning effect. For example, when any car door is about to be opened from the inside or outside, a set of second projection modules 300 located on the corresponding side of any car door can be controlled to project multiple warning images with the same meaning but different presentation to the same projection area. The meaning of the multiple warning images can be "Car door is about to open, please pay attention!", and the presentation can include flashing words, flashing icons, graphics, etc.

[0065] In applications, depending on the required level of detail in the interactive screen, the second projection module 300 can be implemented using optical engine modules such as DMD, LCOS, and LBS with millions of pixels, or it can be implemented using a uLED array module with tens of thousands of pixels.

[0066] In application, the number of projection modules 300 in each group of second projection modules 300 can be set according to actual needs, such as two, three, four, etc., and the number of second projection modules on each side of the vehicle body 100 can be different. The second projection module 300 on each side can be set in the interlayer of the corresponding side door (the projection module corresponding to each door can be reused), the B-pillar, or other positions near the B-pillar. The field of view of the wide-angle lens can be set to any angle above 100° or 150° according to actual needs, such as 100°, 120°, 150°, 180°, etc. Figure 5 The example shows that each group of projection modules on the left and right sides of the vehicle body 100 includes two second projection modules 300 that are spaced apart from each other and whose spacing is adjustable. 400 is the field of view overlap area of ​​the two second projection modules 300 in one group.

[0067] In the application, each second projection module 300 also includes a first drive mechanism (e.g., a gimbal or a motor) connected to the control module 30. The control module 30 is used to control the first drive mechanism to drive each projection module 300 to move in the horizontal direction (from the front of the vehicle to the rear of the vehicle), the vertical direction (perpendicular to the ground), or the Z-axis direction (perpendicular to the horizontal and vertical directions) according to a preset trigger condition, so as to adjust the spacing between at least two projection modules 300 in each group of projection modules.

[0068] like Figure 6 As shown, in one embodiment, each second projection module 300 of the vehicle projection system includes a second display chip 301 and a second imaging system module 302. The vehicle projection system also includes at least one rotatable freeform mirror 303, each freeform mirror 303 corresponding to a second projection module 300; Control module 30 ( Figure 6 (Not shown in the image) is used to adjust the rotation angle of the freeform mirror 303 according to preset triggering conditions, so as to adjust the distance and size of at least two local projection areas A and B in the projection area 304 covered by the viewing field of the corresponding second projection module 300.

[0069] In application, in order to more accurately control the coverage of the projection area of ​​the second projection module 300 and ensure the flexible installation layout of the second imaging system module 302 and the quality of the interactive screen, a freeform surface mirror can be independently set in the second projection module 300 to achieve independent control of the coverage of the projection area of ​​the second projection module 300. Figure 6 The example illustrates two local projection regions A and B in the projection area 304 of a second projection module 300 located on the side of the vehicle body 100. The distance and size (e.g., shape and size) between these two regions and the second projection module 300 are different. Combined with the asymmetrical characteristics of the regions of the freeform mirror 303, the image quality of the two local projection regions A and B can be modulated by the two independent regions A' and B' on the freeform mirror 303. At the same time, by rotating the freeform mirror 303, the angle of the emitted light from regions A' and B' can be controlled, thereby adjusting the coverage of the projection area 304. By combining the layout of the vehicle body 100 and the placement of each second projection module, the expected projection coverage and effect can be achieved.

[0070] In the application, the vehicle projection system also includes a second drive mechanism (e.g., a gimbal or motor) corresponding to each freeform mirror 303 and connected to the control module 30. The control module 30 is used to control the second drive mechanism to drive the corresponding freeform mirror 303 to rotate in the horizontal direction (from the front of the vehicle to the rear of the vehicle), the vertical direction (perpendicular to the ground), or the Z-axis direction (perpendicular to the horizontal and vertical directions) according to preset trigger conditions, so as to adjust the rotation angle of the freeform mirror 303.

[0071] like Figure 7 As shown, in one embodiment, the vehicle projection system 600 includes: The four first projection modules 200 are reused as the left front lighting lamp, right front lighting lamp, left rear lighting lamp, and right rear lighting lamp of the vehicle. Two second projection modules 300 are located on the left side of the vehicle body 100 and two second projection modules 300 are located on the right side of the vehicle body 100; Control module 501; Detection module 502.

[0072] In applications, a 360° surround vehicle projection system is set up, for example, Figure 7 The in-vehicle projection system 600 shown has a first projection module 200 positioned on the front and rear sides of the vehicle body 100, providing lighting and interactive projection content on both sides. The number of second projection modules 300 positioned on the left and right sides of the vehicle body 100 can be configured according to actual needs, enabling interactive projection content on both sides. For example, it can provide key information such as vehicle movement status (straight ahead, lane changing, turning, etc.), start / stop status, parking status, and the open / closed status of each door, or display haptic feedback to passengers. In terms of system architecture, numerous sensors, lidar, machine vision cameras, and other devices distributed around the vehicle body 100 capture external environmental signals in real time, enabling the acquisition of external environmental data and transmission to the control module 501. The control module 501 controls the projection mode (e.g., lighting mode, position and size of the projection area) and interactive screen content of the first projection module 200 and the second projection module 300, enabling the entire vehicle projection system to achieve 360° surround optical interaction around the vehicle body 100, improving driving safety and tactile experience.

[0073] In the above embodiments, the descriptions of each embodiment have their own emphasis. Parts not described in detail in a particular embodiment can be referred to in the relevant descriptions of other embodiments. Components with the same name but different reference numerals are of the same type or are completely identical. Different reference numerals are used to distinguish the different application scenarios in which components with the same name are applicable in different embodiments.

[0074] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A vehicle-mounted projection system, characterized by comprising: The application relates to a vehicle interactive projection system, comprising: a plurality of projection modules arranged around a vehicle body, the projection modules being used for projecting interactive pictures to corresponding projection areas in the external environment of the vehicle in response to control signals generated according to preset trigger conditions; wherein the projection areas of the plurality of projection modules can cover the vehicle body around 360 degrees after combination, the preset trigger conditions include at least one of running dynamic data of the vehicle, external environment data and user instructions, the interactive pictures are used for external targets to obtain the running dynamic of the vehicle, and the external targets include at least one of external personnel and external vehicles.

2. The vehicle-mounted projection system of claim 1, wherein, Each vehicle door of the vehicle corresponds to at least one projection module; at least one projection module corresponding to any vehicle door is used for: projecting an interactive picture for warning external targets that any vehicle door is about to be opened from the inside in response to a first control signal generated according to a first preset trigger condition, the first preset trigger condition includes determining that any vehicle door is about to be opened from the inside according to the running dynamic data or the user instructions; and / or projecting an interactive picture for welcoming a driver in response to a second control signal generated according to a second preset trigger condition, the second preset trigger condition includes determining that any vehicle door is about to be opened from the outside according to the external environment data or the user instructions.

3. The vehicle-mounted projection system of claim 1, wherein, The plurality of projection modules are used for: projecting an interactive picture representing a preset parking track of the vehicle to the external environment around the vehicle body in response to a third control signal generated according to a third preset trigger condition, the third preset trigger condition includes determining that the vehicle is in a parking state according to the running dynamic data or the user instructions; and / or projecting an interactive picture representing a preset running track of the vehicle to the external environment around the vehicle body in response to a fourth control signal generated according to a fourth preset trigger condition, the fourth preset trigger condition includes determining that the vehicle is in a running state according to the running dynamic data or the user instructions.

4. The vehicle projection system of claim 1, wherein, Further comprising: a detection module used for detecting the external environment and obtaining corresponding external environment data; a control module in communication connection with the projection modules and the detection module, used for determining the preset trigger conditions and generating corresponding control signals according to at least one of the running dynamic data of the vehicle, the external environment data and user instructions.

5. The vehicle projection system of any one of claims 1-4, wherein, At least one first projection module multiplexed as an external lighting vehicle lamp of the vehicle is included in the plurality of projection modules; the first projection module includes a first display chip, the first display chip includes a plurality of pixels, and the first projection module is used for controlling the lighting state of each pixel in the first display chip to adjust the brightness of the interactive picture projected by the first projection module in response to a control signal generated according to a preset trigger condition.

6. The vehicle-mounted projection system of claim 5, wherein, The plurality of projection modules include four first projection modules multiplexed as left front lighting vehicle lamps, right front lighting vehicle lamps, left rear lighting vehicle lamps and right rear lighting vehicle lamps of the vehicle respectively.

7. The vehicle-mounted projection system of claim 5, wherein, The first projection module is also used for adjusting the lighting mode of the first projection module in response to a control signal generated according to a preset trigger condition. The first projection module projects interactive pictures with different brightness in different illumination modes.

8. The vehicle-mounted projection system of claim 5, wherein, The illumination modes include a full-illumination mode and a local-illumination mode, and the control signals generated according to the preset trigger conditions include full-illumination control signals and local-illumination control signals. The first projection module is configured to: in response to the full-illumination control signals, control all the pixel points in the first display chip to be lit, thereby realizing the full-illumination mode; in response to the local-illumination control signals, control part of the pixel points in the first display chip to be lit, thereby realizing the local-illumination mode.

9. The vehicle-mounted projection system of claim 5, wherein, The first display chip includes a plurality of groups of pixels, each group of pixels includes at least one pixel and corresponds to a local projection area in the external environment. The first projection module is further configured to: in response to a control signal generated according to a fifth preset trigger condition, control a group of pixels corresponding to any local projection area to be extinguished, the fifth preset trigger condition including determining, according to the external environment data or the user instruction, that the any local projection area has an external target; in response to a control signal generated according to a sixth preset trigger condition, control a group of pixels corresponding to the any local projection area to be lit, the sixth preset trigger condition including determining, according to the external environment data or the user instruction, that the any local projection area has no external target.

10. The vehicle projection system of any one of claims 1-4, wherein, The plurality of projection modules includes at least two second projection modules arranged on the left and right sides of the vehicle body. The second projection module includes a second display chip and a second imaging system module, and the second imaging system module includes a wide-angle lens.

11. The vehicle projection system of any one of claims 1-4, wherein, The plurality of projection modules includes two groups of second projection modules, and each group of second projection modules is arranged on the left and right sides of the vehicle body. Each group of second projection modules includes m second projection modules that are spaced apart and have an adjustable spacing. The position and size of a projection area covered by the field of view of each group of projection modules are adjusted by adjusting the spacing between n second projection modules in each group of second projection modules, and m≥n≥2.

12. The vehicle-mounted projection system of claim 11, wherein, Each group of second projection modules can project k different interactive pictures to the same projection area on the same side of the vehicle body. The same projection area includes an overlapping area and a non-overlapping area, and m≥k≥2.

13. The vehicle-mounted projection system of claim 12, wherein, The second projection module includes a second display chip, and the second display chip includes a plurality of pixels. The sum of the brightness of the pixels corresponding to the overlapping area is less than or equal to the sum of the brightness of the pixels corresponding to the non-overlapping area.

14. The vehicle-mounted projection system of claim 12, wherein, Each group of second projection modules is configured to project at least two different warning pictures to the same projection area on the same side of the vehicle body in response to a control signal generated according to a seventh preset trigger condition. The seventh preset trigger condition includes a vehicle door on the same side of the vehicle body being opened, and the at least two different warning pictures include at least two of dynamic or static graphics, images, icons, and text.

15. The vehicle projection system of any one of claims 1-4, wherein, The projection module includes a display chip and an imaging system module. The projection module includes a display chip and an imaging system module. The free-form surface mirror is configured to rotate by a corresponding angle in response to a control signal generated according to the preset trigger condition, so as to adjust the distance and size of at least two local projection areas covered by the field of view of the corresponding projection module.

16. A vehicle characterized by comprising: The vehicle-mounted projection system according to any one of claims 1-15.

Images