Automobile atmosphere lamp control method and system

Abstract

The invention discloses an automobile atmosphere lamp control method and system, and relates to the technical field of automobiles, and the method comprises the following steps: obtaining danger information existing in vehicle driving through a vehicle-mounted sensor; carrying out risk grade classification according to the danger information acquired by a vehicle-mounted sensor; atmosphere lamps with different colors are installed at different positions of the automobile according to different risk grade types, and the atmosphere lamps are used for sending out different types of early warning information at different positions of the automobile according to different risk grades so as to remind people on the automobile. Graded early warning is realized through three-dimensional combination of the color, the brightness and the flicker frequency, and the problem of low identification degree of traditional single-color early warning is solved; according to the automobile atmosphere lamp early warning control system based on multi-sensor data fusion, radar, camera and CAN bus data are fused, the early warning accuracy is improved, and the false alarm rate is reduced; the invention discloses a collaborative early warning device for automobile atmosphere lamp and seat vibration. The problem that sound early warning fails in a noise environment is solved through vision and somatosensory dual early warning.

Description

Technical Field

[0001] This invention relates to the field of automotive technology, and in particular to a method and system for controlling automotive ambient lighting. Background Technology

[0002] With the booming development of the automotive industry and the increasing demands of people for vehicle driving, more and more vehicles are equipped with ambient lighting. As car users become more individualistic, their requirements for the comfort of interior lighting are also increasing, leading to a growing trend of decorating vehicle interiors with various types of ambient lighting. Decorating the interior of a car with ambient lighting in appropriate locations can create a warm, relaxing, and comfortable atmosphere for users.

[0003] The main function of existing ambient lighting is to provide a relaxing environment, and it rarely contributes to safe driving. It cannot provide drivers with clear light signals to warn them in various scenarios and improve the warning effect. Summary of the Invention

[0004] To address the problems existing in the prior art, this invention provides a method and system for controlling automotive ambient lighting. This system can issue warning messages through the ambient lighting in different dangerous driving scenarios to alert the driver and reduce the occurrence of accidents. The specific technical solution is as follows: A method for controlling automotive ambient lighting, comprising: Acquire information about potential hazards while the vehicle is in motion using onboard sensors; Risk levels are classified based on the hazard information obtained from the vehicle-mounted sensors; Different colored ambient lights are installed in different locations on the car to issue different types of warning messages based on different risk levels, so as to remind the people in the car.

[0005] Preferably, the risk level classification based on the hazard information obtained by the vehicle-mounted sensors includes: defining a Level 1 warning, a Level 2 warning, and a Level 3 warning; The Level 1 warning refers to a potential risk; The Level 2 warning indicates a medium risk level. The Level 3 warning indicates a high risk.

[0006] Preferably, the installation of ambient lights of different colors at different locations on the vehicle, tailored to different risk levels, is used to issue different types of warning information at different locations on the vehicle to alert occupants; including: When the car is in a Level 1 warning state, the ambient lights on the doors and center console will be yellow, with a soft brightness and a constant flashing frequency. When the car is in a Level 2 warning state, the ambient lighting in the entire cabin will be set to orange with a high brightness and a slow flashing frequency. When the car is in a Level 3 warning state, the ambient lighting in the entire cabin is red, bright, and flashes rapidly.

[0007] Preferably, when the car is in a Level 3 warning state, it also includes controlling the ambient light strip on the seat back to turn red, and the seat back vibrator to vibrate synchronously to enhance the physical warning.

[0008] Preferably, the danger information corresponding to the first-level warning includes an open door, an unfastened seat belt, and slightly low tire pressure.

[0009] Preferably, the danger information corresponding to the secondary warning includes lane departure, following too closely, and high coolant temperature.

[0010] Preferably, the danger information corresponding to the three-level warning includes an impending collision, a sharp drop in tire pressure, and a braking system malfunction.

[0011] An automotive ambient lighting control system, applied to the method described above, includes onboard sensors, a main control MCU, an ambient lighting assembly, and a feedback unit; The on-board sensor is used to acquire information about potential hazards while the vehicle is in motion, and the on-board sensor is connected to the original vehicle system. The main control MCU is used to interface with the original vehicle system, classify the warning type, and output ambient light control commands; The ambient lighting system is used to output corresponding signals according to the control commands issued by the main control MCU. The feedback unit is used to issue an additional alarm sound while simultaneously providing an ambient light warning.

[0012] Preferably, the vehicle-mounted sensor includes: millimeter-wave radar / lidar: used to collect distance to the vehicle in front and relative speed; Camera: Used to identify lane lines and the duration of time the driver closes their eyes and looks down; Tire pressure sensor: Used to monitor tire pressure / temperature; Door / seatbelt sensor: Used to detect if the door is not closed properly and if the seatbelt is not fastened; Fault diagnosis sensor: Collects engine fault codes, coolant temperature, and brake fluid level.

[0013] Preferably, the ambient light uses an RGB LED light strip, which supports 16.7 million colors and has an adjustable brightness range of 0-100%.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention achieves graded early warning through a three-dimensional combination of color, brightness, and flashing frequency, solving the problem of low recognition of traditional single-color early warning; a multi-sensor data fusion automotive ambient lighting early warning control system: integrates radar, camera, and CAN bus data to improve early warning accuracy and reduce false alarm rate; a collaborative early warning device for automotive ambient lighting and seat vibration: solves the problem of sound early warning failure in noisy environments through visual + tactile early warning. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0016] Figure 1 This is a system schematic diagram of the present invention; Detailed Implementation The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0018] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0019] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0020] Example 1 like Figure 1As shown, a method for controlling automotive ambient lighting includes: acquiring hazard information present during vehicle operation via onboard sensors; classifying risk levels based on the hazard information acquired by the onboard sensors; and installing ambient lights of different colors at different locations on the vehicle for different risk levels, thereby issuing different types of warning information at different locations on the vehicle to remind occupants.

[0021] The risk level classification based on the hazard information obtained from the vehicle's onboard sensors includes: defining Level 1 warning, Level 2 warning, and Level 3 warning; Level 1 warning represents potential risks that do not require immediate action, such as unclosed doors, unfastened seat belts, and slightly low tire pressure; Level 2 warning represents medium risks that require attention and preparation for response, such as lane departure, too close a vehicle in front, and high coolant temperature; Level 3 warning represents high risks that require immediate evasive action, such as an impending collision, a rapid drop in tire pressure, and brake system malfunction.

[0022] The system involves installing ambient lights of different colors at different locations within the vehicle to issue different types of warning messages based on different risk levels, thereby alerting occupants. This includes: When the car is in a Level 1 warning state, the color of the door ambient lights and the center console ambient lights will be yellow and the brightness will be soft, i.e., 50% on and the flashing frequency will be constant. Additionally, it should be noted that in special scenarios such as driver fatigue warning: the blue ambient light gradually flashes (0.5Hz), accompanied by a slight vibration of the seat. Side traffic alert (lane change assist): the ambient light on one door flashes red rapidly (3Hz), only alerting passengers on the corresponding side. When the car is in a level two warning state, the ambient lighting throughout the cabin is orange and bright enough to be clearly visible (80% on), with a slow flashing frequency (1Hz); when the car is in a level three warning state, the ambient lighting throughout the cabin is red and bright enough to be clearly visible (100% on), with a fast flashing frequency (3Hz).

[0023] Furthermore, when the car is in a Level 3 warning state, it also includes controlling the ambient light strip on the seat back to turn red, and the seat back vibrator to vibrate synchronously to enhance the physical warning.

[0024] Example 2 An automotive ambient lighting control system, applied to the method described above, includes onboard sensors, a main control MCU, an ambient lighting assembly, and a feedback unit; The in-vehicle sensors are used to obtain dangerous information during vehicle driving, and the in-vehicle sensors are connected to the original vehicle system; the in-vehicle sensors include: millimeter-wave radar / lidar: used to collect the distance and relative speed of the vehicle in front; camera: used to identify lane lines and the duration of the driver's eyes closed and head down; tire pressure sensor: used to monitor tire pressure / temperature; door / safety belt sensor: used to monitor whether the door is not closed tightly and the safety belt is not fastened; fault diagnosis sensor: collects engine fault codes, coolant temperature, and brake fluid level.

[0025] The main control MCU is used to dock with the original vehicle system, classify early warnings, and output ambient light control commands; select a vehicle-grade MCU (such as STM32H743, NXP S32K3 series), which meets the working temperature requirements of -40°C to 125°C and has the following functions: receive multi-channel data from the perception layer, support multi-protocol communication such as CAN / LIN / Ethernet. Run the early warning classification algorithm and output ambient light control commands. Support OTA upgrade to update the dangerous scenario library and early warning strategy The ambient light combination is used to output corresponding signals according to the control commands issued by the main control MCU; the ambient light uses an RGB LED strip, supports 16.7 million color adjustment, and the brightness adjustable range is 0-100%. Installation locations: door interior trim panel, lower edge of the center console, seat backrest, footwell, to achieve full-cabin coverage without dead angles. Driving method: vehicle-grade LED driver chip (such as TITPS92692), supports PWM dimming and frequency control, and the response delay < 100ms.

[0026] The feedback unit is used to emit additional alarm sounds while the ambient light gives an early warning.

[0027] To improve the early warning effect, multi-module linkage is added, such as: Sound linkage: When the ambient light gives an early warning, the in-vehicle audio emits corresponding-level prompt sounds, level one "ding dong", level two "beep beep", level three rapid alarm.

[0028] Seat linkage: When a level-three emergency early warning occurs, the seat backrest vibrator vibrates synchronously to strengthen the somatosensory early warning.

[0029] Display linkage: The center control screen synchronously displays the reason for the danger, such as "The distance from the vehicle in front is too close, please decelerate".

[0030] To better understand the present invention, taking the early warning of a collision with the vehicle in front as an example, the complete working process is as follows: Data acquisition: The millimeter-wave radar continuously acquires the distance and relative speed of the vehicle in front and transmits them to the main control MCU.

[0031] Risk assessment: The MCU calculates the time to collision (TTC) based on a preset threshold: safe distance = vehicle speed × 1.2s. If TTC < 3s, it is judged as a Level 2 warning; if TTC < 1.5s, it is judged as a Level 3 emergency.

[0032] Command output: The MCU sends control commands to the LED driver chip. Level 2 warning corresponds to a slow orange flashing at 1Hz, and Level 3 emergency corresponds to a fast red flashing at 3Hz.

[0033] Warning Execution: The ambient lighting module executes the command, simultaneously triggering the audio system and seat vibration, while the central control screen displays the warning information.

[0034] Release mechanism: When the driver takes deceleration or avoidance actions, the perception layer data returns to normal, the MCU sends a release command, and the ambient lights return to their default state, such as solid white.

[0035] In summary, the present invention has the following advantages: Coverage of multiple hazardous scenarios: It covers three main categories of active safety hazards, such as the risk of collision with the vehicle in front and lane departure; passive safety hazards, such as an open door and abnormal tire pressure; and vehicle malfunction hazards, such as engine failure and insufficient coolant.

[0036] Visualized warning levels: Different hazard levels correspond to different ambient light signals to avoid confusion in warning information.

[0037] Low interference: Ambient lighting warnings do not affect the driver's vision; the warning information can be obtained simply by using peripheral vision.

[0038] High compatibility: It can be adapted to fuel vehicles and new energy vehicles, and supports docking with the original vehicle CAN bus and ADAS system.

[0039] Those skilled in the art will recognize that the units of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of the invention.

[0040] In the embodiments provided by the present invention, it should be understood that the division of units is only a logical functional division. In actual implementation, there may be other division methods, such as multiple units can be combined into one unit, one unit can be split into multiple units, or some features can be ignored.

[0041] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0042] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A method for controlling automotive ambient lighting, characterized in that, include: Acquire information about potential hazards while the vehicle is in motion using onboard sensors; Risk levels are classified based on the hazard information obtained from the vehicle-mounted sensors; Different colored ambient lights are installed in different locations on the car to issue different types of warning messages based on different risk levels, so as to remind the people in the car.

2. The automotive ambient lighting control method according to claim 1, characterized in that, The risk level classification based on the hazard information obtained from the vehicle-mounted sensors includes: defining Level 1 warning, Level 2 warning, and Level 3 warning; The Level 1 warning refers to a potential risk. The Level II warning indicates a medium risk level. The Level 3 warning indicates a high risk.

3. The automotive ambient lighting control method according to claim 3, characterized in that, The system involves installing ambient lights of different colors at different locations within the vehicle to issue different types of warning messages based on different risk levels, thereby alerting occupants. This includes: When the car is in a Level 1 warning state, the ambient lights on the doors and center console will be yellow, with a soft brightness and a constant flashing frequency. When the car is in a Level 2 warning state, the ambient lighting in the entire cabin will be set to orange with a high brightness and a slow flashing frequency. When the car is in a Level 3 warning state, the ambient lighting in the entire cabin is red, bright, and flashes rapidly.

4. The automotive ambient lighting control method according to claim 3, characterized in that, When the car is in a Level 3 warning state, it also includes controlling the ambient light strip on the seat back to turn red, and the seat back vibrator to vibrate synchronously to enhance the physical warning.

5. The automotive ambient lighting control method according to claim 3, characterized in that, The danger information corresponding to the Level 1 warning includes an open door, an unfastened seat belt, and slightly low tire pressure.

6. The automotive ambient lighting control method according to claim 3, characterized in that, The danger information corresponding to the Level 2 warning includes lane departure, too close following distance to the vehicle in front, and high coolant temperature.

7. The automotive ambient lighting control method according to claim 3, characterized in that, The three-level warnings correspond to the following danger information: an impending collision, a sharp drop in tire pressure, and a braking system malfunction.

8. A car ambient lighting control system, characterized in that, The method applied to any one of claims 1 to 7 includes an on-board sensor, a main control MCU, an ambient light assembly, and a feedback unit; The on-board sensor is used to acquire information about potential hazards while the vehicle is in motion, and the on-board sensor is connected to the original vehicle system. The main control MCU is used to interface with the original vehicle system, classify the warning system, and output ambient light control commands. The ambient lighting system is used to output corresponding signals according to the control commands issued by the main control MCU. The feedback unit is used to issue an additional alarm sound while simultaneously providing an ambient light warning.

9. A car ambient lighting control system according to claim 8, characterized in that, The vehicle-mounted sensors include: Millimeter-wave radar / LiDAR: Used to collect distance and relative speed of the vehicle in front; Cameras: used to identify lane lines and the duration of time drivers close their eyes and look down; Tire pressure sensor: Used to monitor tire pressure / temperature (early warning of abnormal tire pressure); Door / seatbelt sensor: Used to detect when a door is not closed properly and when a seatbelt is not fastened. Fault diagnosis sensors: collect engine fault codes, coolant temperature, and brake fluid level.

10. A car ambient lighting control system according to claim 8, characterized in that, The ambient light uses an RGB LED light strip, supports 16.7 million colors, and has an adjustable brightness range of 0-100%.

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