Vehicle interior lighting control method, lighting equipment and vehicle

Abstract

The present invention discloses a method for controlling vehicle interior lighting, a lighting device, and a vehicle, wherein the method comprises: obtaining a lighting scene switching instruction and / or a seat movement instruction; controlling the lighting device to adjust at least one of a lighting mode and a lighting intensity according to the lighting scene switching instruction; and controlling the lighting device's lighting angle to follow seat movement and controlling the lighting device's lighting area to dynamically adjust as the seat position changes according to the seat movement instruction. The vehicle interior lighting control method provided by the present invention can control the lighting device to adjust the lighting angle and lighting area in real time according to seat movement, thereby automatically controlling the lighting device to make dynamic adjustments when the vehicle interior lighting scene switches and when the seat moves, thereby enhancing the quality of the vehicle interior lighting and improving the passenger experience.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle interior lighting, and in particular to a vehicle interior lighting control method, lighting equipment and a vehicle. Background Art

[0002] With technological advancements and rising living standards, people's expectations for vehicles are no longer limited to operational performance, safety, and reliability; they are also increasingly concerned with the quality of interior lighting. Currently, the illumination range of most interior lighting fixtures is fixed during installation, making it difficult for passengers to adjust the lighting angle, or the lighting angle can only be adjusted manually. This creates a lack of interaction between lighting effects and passenger status when switching between lighting scenes, making it difficult for passengers to easily achieve their desired interior lighting effect through simple operations.

[0003] In view of this, it is necessary to provide a method for controlling vehicle interior lighting that can improve the interactivity between the vehicle interior lighting and the passenger status. Summary of the Invention

[0004] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide a control method, lighting equipment and automobile for vehicle interior lighting, wherein the control method for vehicle interior lighting can control the lighting equipment to adjust the lighting angle and lighting area in real time according to the movement of the seat when the seat moves, thereby automatically controlling the lighting equipment to make dynamic adjustments when the vehicle interior lighting scene switches and the seat moves, enhancing the quality of the vehicle interior lighting, and significantly improving the interactivity between the vehicle interior lighting and the passenger status, so as to improve the passenger's riding experience.

[0005] The technical solution of the present invention provides a method for controlling vehicle interior lighting, comprising:

[0006] Obtaining lighting scene switching instructions and / or seat movement instructions;

[0007] Controlling the lighting device to adjust at least one of the lighting mode and the lighting intensity according to the lighting scene switching instruction;

[0008] According to the seat movement instruction, the lighting angle of the lighting device is controlled to follow the movement of the seat, and the lighting area of ​​the lighting device is controlled to be dynamically adjusted as the seat position changes.

[0009] In one of the optional technical solutions, after dynamically adjusting the illumination area of ​​the lighting device as the seat position changes, the method further includes: controlling the lighting device to adjust the illumination intensity accordingly according to the adjustment of the illumination area.

[0010] In one of the optional technical solutions, controlling the illumination angle of the lighting device to follow the movement of the seat according to the seat movement instruction, and controlling the illumination area of ​​the lighting device to dynamically adjust as the seat position changes, includes:

[0011] Determining whether the lighting device meets the seat-following condition;

[0012] If the lighting device meets the seat-following condition, controlling the lighting device to enter a seat-following mode;

[0013] If the lighting device does not meet the following seat condition, the lighting device is controlled to enter a catching-up mode.

[0014] In one of the optional technical solutions, before determining whether the lighting device meets the seat-following condition, the method further includes:

[0015] State information of the lighting device is acquired, where the state information includes a current illumination angle, a maximum angular velocity of illumination angle adjustment, a current illumination area, and a maximum adjustment velocity of illumination area adjustment.

[0016] In one of the optional technical solutions, the determining whether the lighting device meets the seat-following condition includes:

[0017] determining, according to the seat movement instruction, the current illumination angle, and the maximum angular velocity, whether the lighting device satisfies an illumination angle following condition;

[0018] determining, according to the seat movement instruction, the current illumination area, and the maximum adjustment speed, whether the lighting device satisfies an illumination area following condition;

[0019] If the lighting device satisfies both the illumination angle following condition and the illumination area following condition, it is determined that the lighting device satisfies the seat following condition.

[0020] In one of the optional technical solutions, judging whether the lighting device satisfies the illumination angle following condition based on the seat movement instruction, the current illumination angle, and the maximum angular velocity includes:

[0021] According to the seat movement instruction, the current seat position, the target seat position and the seat movement speed are obtained, and the seat movement time is calculated;

[0022] Converting the current seat position and the target seat position into a first angle and a second angle corresponding to illumination angles, respectively;

[0023] calculating a target angular velocity according to the first angle, the second angle, and the seat movement time;

[0024] If the difference between the current illumination angle and the first angle is less than or equal to a first angle error threshold, and the maximum angular velocity is greater than or equal to the target angular velocity, it is determined that the lighting device meets the illumination angle following condition.

[0025] In one of the optional technical solutions, judging whether the lighting device satisfies the illumination area following condition based on the seat movement instruction, the current illumination area, and the maximum adjustment speed includes:

[0026] According to the seat movement instruction, the current seat position, the target seat position and the seat movement speed are obtained, and the seat movement time is calculated;

[0027] On the premise of maintaining the same illumination area, the current seat position and the target seat position are converted into a third angle and a fourth angle corresponding to the focusing angle respectively;

[0028] Calculating a current spotlight angle according to the current illuminated area and the distance between the current seat position and the lighting device, and converting the maximum adjustment speed into a maximum spotlight adjustment angular speed;

[0029] Calculating a target spotlight angle based on the distance between the target seat position and the lighting device and the current illuminated area;

[0030] Calculating a target focusing adjustment angular velocity according to the current focusing angle, the target focusing angle, and the seat movement time;

[0031] If the difference between the current focusing angle and the third angle is less than or equal to a second angle error threshold, and the maximum focusing adjustment angular velocity is greater than or equal to the target focusing adjustment angular velocity, it is determined that the lighting device meets the illumination area following condition.

[0032] In one of the optional technical solutions, if the lighting device does not meet the following seat condition, controlling the lighting device to enter the catch-up mode includes:

[0033] determining, according to the seat movement instruction and the status information, whether the lighting device satisfies a first catching-up condition, a second catching-up condition, and a third catching-up condition;

[0034] If the lighting device satisfies the first catching-up condition, controlling the illumination angle to be adjusted at the maximum angular velocity, and controlling the illumination area to be adjusted at the maximum adjustment speed;

[0035] If the second catching-up condition is met, controlling the illumination angle to be adjusted at the maximum angular velocity, and controlling the illumination area to be dynamically adjusted as the seat position changes;

[0036] If the lighting device meets the third catching-up condition, the lighting area is controlled to be adjusted at the maximum adjustment speed, and the lighting angle is controlled to follow the movement of the seat.

[0037] The technical solution of the present invention provides a lighting device for any of the aforementioned vehicle interior lighting control methods, including a driving base for changing the illumination angle and a focusing assembly connected to the driving base for changing the illumination area, the focusing assembly including a light source, a first lens, an aperture for controlling the luminous flux, and a second lens arranged in sequence from the inside to the outside, and the illumination area is adjusted by changing the aperture of the aperture.

[0038] The technical solution of the present invention provides a car, including a car body, in which the aforementioned lighting device is arranged.

[0039] The above technical solution has the following beneficial effects:

[0040] The vehicle interior lighting control method provided by the present invention significantly enhances the interactivity between interior lighting and passenger status by controlling the lighting equipment to make corresponding dynamic changes in real time when scenes switch or seats move, thereby improving the passenger's riding experience. Specifically, upon detecting a passenger-controlled interior lighting scene switch, or a change in a passenger's riding posture causing seat movement, the lighting equipment is controlled to adjust the lighting angle and area in real time based on the seat's movement. This automatically controls the lighting equipment to make dynamic adjustments when the interior lighting scene switches or when seats move, maintaining the quality of the interior lighting and ensuring that the same lighting scene atmosphere remains after the passenger's seat position changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The disclosure of the present invention will become more easily understood with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the drawings:

[0042] Figure 1 A flowchart of a method for controlling vehicle interior lighting according to an embodiment of the present invention;

[0043] Figure 2 A structural diagram of a light focusing assembly provided in one embodiment of the present invention;

[0044] Figure 3 A schematic diagram of a first vehicle interior state provided by an embodiment of the present invention;

[0045] Figure 4 A schematic diagram of a second vehicle interior state provided by an embodiment of the present invention;

[0046] Figure 5A flowchart of a method for controlling vehicle interior lighting according to another embodiment of the present invention;

[0047] Figure 6 A flowchart of a method for controlling vehicle interior lighting according to another embodiment of the present invention;

[0048] Figure 7 A flowchart of a method for controlling vehicle interior lighting according to another embodiment of the present invention;

[0049] Figure 8 A structural diagram of an electronic device provided by an embodiment of the present invention.

[0050] Reference numerals in the figures:

[0051] 1. Light source;

[0052] 2. Focusing assembly; 21. First lens; 22. Aperture; 23. Second lens. DETAILED DESCRIPTION

[0053] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0054] like Figure 1 A method for controlling vehicle interior lighting provided by an embodiment of the present invention is shown, comprising:

[0055] Step S101: Acquire a lighting scene switching instruction and / or a seat movement instruction.

[0056] Step S102: According to the lighting scene switching instruction, control the lighting device to adjust at least one of the lighting mode and the lighting intensity.

[0057] Step S103: According to the seat movement instruction, the illumination angle of the lighting device is controlled to follow the movement of the seat, and the illumination area of ​​the lighting device is controlled to be dynamically adjusted as the seat position changes.

[0058] Obtain instructions and determine the adjustment method of the lighting equipment through step S101. When the main control module of the vehicle receives the lighting scene switching instruction, step S102 is executed. The lighting mode and lighting intensity are changed by controlling the lighting mode of the light source 1 in the lighting equipment. The lighting modes include daytime mode, dusk mode, late night mode, reading mode, nap mode, etc. The lighting mode is switched in different scenes by changing the color temperature, flashing frequency and focus of the light emitted by the light source 1; when the seat movement instruction is received, step S103 is executed. The lighting angle and lighting area can be known according to the movement of the seat. Since the distance between the seat and the lighting equipment will change after the seat moves, if the focusing parameters of the lighting equipment are not changed, the actual lighting area reaching the seat will increase or decrease, which may change the ray tracing atmosphere in the car felt by the passengers. Therefore, maintaining the actual lighting area by changing the focusing parameters of the lighting equipment can ensure the consistency of the lighting effect in the car. Seat movement also includes changes in seat posture, such as shifting the seat to a zero-gravity state, which involves deformations like rearward adjustment of the backrest and deployment of the leg rest. This also changes the actual lighting position. Step S103 allows for focusing on specific areas under different lighting scenarios to control changes in lighting angle and maintain illumination area. When both a lighting scene switching command and a seat movement command are received, steps S102 and S103 are executed simultaneously.

[0059] As an advantage, it also includes:

[0060] Step S104: controlling the lighting device to adjust the illumination intensity accordingly according to the adjustment of the illumination area.

[0061] In step S104, when the illuminated area dynamically adjusts with the seat's movement, the lighting device's illumination intensity is also adjusted to compensate for changes in illumination intensity caused by the change in illumination area. For example, when a lighting device is instructed to follow the seat's movement while maintaining a constant illumination area, the lighting device's focusing effect will inevitably change to maintain the same illumination area, which in turn affects the device's illumination intensity. To ensure that changes in the illumination area do not affect the final lighting effect, the lighting device's illumination intensity must be adjusted synchronously with changes in the aperture size. In other lighting scenarios, the relationship between illumination intensity and illumination area is adjusted based on the specific needs of the scenario.

[0062] The lighting equipment therein is not exactly the same as the lighting equipment in the vehicle in the prior art. The embodiment of the present invention needs to use a lighting equipment whose illumination angle and illumination area can be freely controlled by the vehicle's main control module to implement steps S101 to S103.

[0063] like Figure 2As shown, preferably, an embodiment of the present invention provides a lighting device for the aforementioned vehicle interior lighting control method, comprising a driving base for changing the illumination angle and a focusing assembly 2 connected to the driving base for changing the illumination area, wherein the focusing assembly 2 comprises a light source 1, a first lens 21, an aperture 22 for controlling the luminous flux, and a second lens 23 arranged in sequence from the inside to the outside, and the illumination area is adjusted by changing the aperture of the aperture 22.

[0064] The lighting device includes an aperture 22 for changing the focusing effect. The focusing effect of the lighting device is controlled by changing the size of the light-transmitting hole of the aperture 22, and the light intensity is synchronously adjusted during the process of the aperture 22 changing the size of the light-transmitting hole to adjust the lighting area and lighting effect of the lighting device.

[0065] The focusing effect is altered by changing the aperture size of diaphragm 22 to ensure that the illuminated area actually irradiated on the seat follows the seat's movement. However, changing the aperture size of diaphragm 22, and therefore the illuminated area, also affects the luminous flux of light source 1 in the lighting device. Even if the illuminated area remains constant, the brightness of the light changes, thereby altering the lighting effect. Therefore, it is necessary to simultaneously adjust the illumination intensity of light source 1 as the aperture size of diaphragm 22 changes. For example, when the aperture size of diaphragm 22 decreases, reducing the luminous flux, the illumination intensity is correspondingly increased to ensure that the actual illumination intensity remains unchanged.

[0066] Furthermore, the lighting device utilizes a design that combines a drive base with a focusing assembly 2. The drive base can flexibly adjust the lighting device's illumination angle, ensuring that the illumination always accurately covers the occupant's area as the seat moves, significantly improving the practicality and comfort of the lighting effect. Concentrating assembly 2 is internally configured with a light source 1, a first lens 21, an aperture 22, and a second lens 23. By controlling the light intensity, color temperature, and flickering frequency of light source 1, the effects of changing the illumination intensity and illumination pattern in step S102 can be achieved. By precisely controlling the aperture size of aperture 22, the illumination area can be precisely adjusted to meet the occupant's illumination range requirements in different scenarios. Furthermore, in step S103, when the vehicle seat moves, the drive base is controlled to drive the focusing assembly 2 to change the illumination angle to follow the seat's movement. By changing the beam limiting state of aperture 22, the illumination area can be dynamically adjusted to follow the seat's position. For example, when a passenger enters nap mode and pushes the seat back, the lighting angle of the lighting device follows the seat during movement, keeping the actual lighting area irradiated to the passenger unchanged before and after the seat moves, thereby improving the passenger experience.

[0067] The aperture 22 refers to an entity that limits the light beam in an optical system. The aperture 22 can be the edge of a lens, a frame, or a specially configured screen with holes. Its function can be divided into two aspects: limiting the light beam or limiting the size of the field of view (imaging range). The main types include aperture apertures that limit the light beam and field apertures that limit the size of the field of view. The embodiments of the present invention use an aperture aperture to achieve precise control of the illuminated area. The adjustment of the illuminated area described below is actually achieved by controlling the size of the aperture aperture opening. That is, the focusing effect is changed by changing the size of the light-transmitting hole of the aperture 22. The "aperture" here refers to the diameter of the light-transmitting hole of the aperture 22.

[0068] For example, when a lighting device projects a pattern, text, or number onto a seat, if the seat moves, the projection effect of the pattern, text, or number can be changed by changing the size of the light-transmitting aperture of aperture 22. If the distance between the seat and the lighting device increases, the actual projection area can be maintained by reducing the size of the light-transmitting aperture of aperture 22, and the light intensity of light source 1 in the lighting device can be increased accordingly to ensure that the projection clarity is maintained even when the seat position changes. If the distance between the seat and the lighting device decreases, the actual projection area can be maintained by increasing the size of the light-transmitting aperture of aperture 22, and the light intensity of light source 1 in the lighting device can be reduced accordingly to maintain the projection clarity. If light source 1 is an LED lamp, the LED lamp's light intensity can be changed by changing the duty cycle of its PWM (pulse width modulation) signal.

[0069] Preferably, both the first lens 21 and the second lens 23 are convex lenses to ensure a parallel light region is generated between the first lens 21 and the second lens 23. The aperture 22 is positioned between the first lens 21 and the second lens 23, forming a pre-focusing region between the light source 1 and the first lens 21, a parallel light region between the first lens 21 and the second lens 23, and a focusing region between the second lens 23 and the outside. By positioning the aperture 22 within the parallel light region, the area of ​​parallel light irradiating the second lens 23 can be varied by changing the aperture of the aperture 22, thereby precisely adjusting the focal length of the focusing region and the actual area of ​​illumination irradiated on the seat.

[0070] In summary, the vehicle interior lighting control method provided by the embodiment of the present invention significantly improves the interactivity between the vehicle interior lighting and the passenger status by setting the lighting equipment to make corresponding dynamic changes in real time when the scene switches and the seat moves, thereby improving the passenger's riding experience.

[0071] Specifically, when it detects that the interior lighting scene is switched by the passenger, or when the passenger's riding posture changes and the seat moves, the lighting equipment can be controlled to adjust the lighting angle and lighting area in real time according to the movement of the seat, thereby automatically controlling the lighting equipment to make dynamic adjustments when the interior lighting scene of the vehicle is switched and the seat moves. By maintaining the quality of the interior lighting, it ensures that the passenger can still obtain the same lighting scene atmosphere after the seat position changes.

[0072] like Figure 3 and Figure 4 The figure below shows the relative position of the seat and lighting fixtures in the vehicle. X is the horizontal distance between the seat and the lighting fixture, H is the vertical distance between the seat and the lighting fixture, L is the length of the line connecting the lighting fixture and the seat, or the distance between the lighting fixture and the seat, and α is the illumination angle, which is the angle between the line connecting the lighting fixture and the seat and the horizontal line. As the seat moves from its initial position to position 1, L changes to L1, which affects the actual illumination area projected by the lighting fixture onto the seat.

[0073] In one embodiment, Figure 5 As shown, according to the seat movement instruction, controlling the illumination angle of the lighting device to follow the movement of the seat, and controlling the illumination area of ​​the lighting device to dynamically adjust as the seat position changes, includes:

[0074] Step S501: Determine whether the lighting device meets the seat-following condition.

[0075] Step S502: If the lighting device meets the seat-following condition, control the lighting device to enter a seat-following mode.

[0076] Step S503: If the lighting device does not meet the seat-following condition, control the lighting device to enter a catch-up mode.

[0077] In this embodiment, the driving base and the aperture 22 in the lighting device are both limited by the device itself, and there is a range of adjustment speeds, specifically the adjustment angular velocity range ω1~ω2 of the lighting angle affected by the driving base, and the adjustment speed range ψ1~ψ2 of the lighting area represented by the aperture expansion and contraction speed of the aperture 22. In the following mode, the lighting angle is followed and the lighting area is dynamically adjusted at an adjustment speed that matches the movement speed of the seat. In the catching up mode, the lighting device catches up with the position of the seat at the maximum angular velocity ω2 and the maximum adjustment speed ψ2.

[0078] The focusing angle θ refers to the angle between the edge light in the light beam limited by the aperture stop 22 and the optical axis. The aperture R of the aperture 22 is the diameter of the opening in the aperture 22. max is the maximum focusing angle, Rmax The maximum aperture is 22.

[0079] In the catch-up mode, the seat is initially positioned at position 1 and the parameters with a subscript of 1 are all parameters related to the initial position. The lighting device is adjusted at the maximum angular velocity ω2 and the maximum adjustment speed ψ2 to catch up with the seat as quickly as possible. Therefore, it is necessary to pre-calculate the lighting angle of the lighting device, the time t to catch up with the seat position, and the lighting angle α when the catch-up is successful. t and the focusing angle θ t , thereby switching the lighting device to follow mode after the preset time has passed.

[0080] Among them, the illumination angle α when catching up successfully t is calculated as follows:

[0081]

[0082] Aperture R when catching up successfully t and the focusing angle θ t is calculated as follows:

[0083]

[0084] θ t =θ1+ψ2*t

[0085] The time for catching up with the illumination angle and the time for catching up with the illumination area can be different. The following mode will not be entered until both the illumination angle and the illumination area are successfully caught up. By calculating the time of successful catching up and the illumination angle and illumination area at the time of successful catching up, the speed of the following seat adjustment required for subsequent entering the following mode can be calculated in advance, so as to achieve a smooth transition from catching up mode to following mode.

[0086] In the follow mode, the seat moves from position 1 to position 2 within Δt time, and the horizontal distance between the seat and the lighting device changes from X1 to X2. The seat movement speed V can be calculated. S .

[0087] pass

[0088] ΔX=X2-X1=V s *Δt

[0089] The seat movement speed V can be calculated S The numerical value of .

[0090] When the vertical distance H between the seat and the lighting device is known, the illumination angle α1 of the lighting device when the seat is in position 1 and the illumination angle α2 of the lighting device when the seat is in position 2 can also be calculated.

[0091] The target angular velocity Δω is calculated as follows:

[0092]

[0093] Δα=α2-α1

[0094]

[0095] Therefore, by calculating the illumination angle α1 and the illumination angle α2, the illumination angle change Δα within the time Δt can be calculated, and then the target angular velocity Δω required to follow the seat within the time Δt can be calculated. The target angular velocity Δω is an average value. The illumination angle of the lighting device is controlled to follow the movement of the seat by following the angular velocity Δω. Since the seat does not move in a circular motion but in a linear motion, even a seat that moves at a constant speed cannot ensure that the angle change is uniform. For this reason, it is necessary to recalculate the target angular velocity Δω within each Δt interval to ensure the synchronization of the illumination angle following of the lighting device.

[0096] In the follow mode, the seat moves from position 1 to position 2 within Δt, and the vertical distance between the seat and the lighting device changes from L1 to L2. The vertical distance change ΔLo between the seat and the lighting device within Δt can be calculated.

[0097]

[0098] like Figure 2 As shown, the parameters of the lighting device in the current state of the diaphragm 22 are obtained in real time, including the aperture R of the diaphragm 22, the horizontal distance F between the second lens 23 and the focus, the vertical distance f between the second lens 23 and the focus, and the diameter of the illuminated area. Some parameters are calculated as follows:

[0099]

[0100] Then, the target focusing adjustment angular velocity Δψ is calculated to follow the movement of the seat and keep the illuminated area unchanged within the time Δt. By calculating the relationship between the aperture change ΔR of the diaphragm 22 and the focusing angle change Δθ and the target focusing adjustment angular velocity Δψ of the illuminated area within the time Δt, the target focusing adjustment angular velocity Δψ can be accurately controlled by controlling the change rate of the aperture of the diaphragm 22.

[0101] The calculation method of the aperture change ΔR of the aperture 22 is:

[0102]

[0103] The calculation method of the change in the focusing angle Δθ is:

[0104]

[0105] The target adjustment angular velocity Δψ of the illuminated area is calculated as:

[0106]

[0107] The above calculation method can be used to calculate the average adjustment amount of the aperture ΔR of the diaphragm 22 within the time Δt, thereby accurately controlling the dynamic change of the illuminated area as the seat moves.

[0108] In one embodiment, before determining whether the lighting device meets the seat-following condition, the method further includes:

[0109] Step S500: Acquire status information of the lighting device, wherein the status information includes a current illumination angle, a maximum angular velocity of illumination angle adjustment, a current illumination area, and a maximum adjustment velocity of illumination area adjustment.

[0110] In this embodiment, the purpose of acquiring lighting device status information is to ensure that the main control module can make accurate judgments and adjustments based on the actual lighting device status. This status information, including parameters such as illumination angle, illumination area, maximum angular velocity, and maximum adjustment speed, is the basis for the lighting device to adjust its function to accommodate seat movement and is required for automated lighting control. By acquiring this information in real time, the system can predict the lighting device's responsiveness to seat movement, enabling more precise adjustments.

[0111] In one embodiment, Figure 6 As shown, the determining whether the lighting device meets the seat following condition includes:

[0112] Step S601: judging whether the lighting device satisfies an illumination angle following condition according to the seat movement instruction, the current illumination angle and the maximum angular velocity.

[0113] Step S602: judging whether the lighting device satisfies an illumination area following condition according to the seat movement instruction, the current illumination area and the maximum adjustment speed.

[0114] Step S603: If the lighting device satisfies both the illumination angle following condition and the illumination area following condition, it is determined that the lighting device satisfies the seat following condition.

[0115] In this embodiment, determining whether the lighting device meets the illumination angle and illumination area following conditions is to ensure that the lighting device can respond promptly and accurately to seat movement. By obtaining the seat's position and displacement information from the seat movement command and comparing it with the lighting device's current illumination angle and area, combined with the lighting device's maximum mobility, the main control module can determine whether the lighting device can meet the requirements of following the seat's movement. If the requirement of dynamically adjusting the lighting to follow the seat's movement cannot be met at the current moment, the lighting device is controlled to enter a state of maximum adjustment speed, that is, to enter catch-up mode, to catch up with the seat's position. If the catch-up is successful midway through the seat's movement, the lighting device is controlled to enter follow-up mode. The catch-up mode setting can address situations where some lighting devices cannot meet the follow-up mode requirements. No additional intervention is required by the driver or passengers, and the entire process of dynamic adjustment of the illumination angle and illumination area is completed automatically.

[0116] Furthermore, step S602 includes:

[0117] According to the seat movement instruction, the current seat position, the target seat position and the seat movement speed are obtained, and the seat movement time is calculated.

[0118] The current seat position and the target seat position are respectively converted into a first angle and a second angle corresponding to the illumination angle.

[0119] A target angular velocity is calculated according to the first angle, the second angle, and the seat movement time.

[0120] If the difference between the current illumination angle and the first angle is less than or equal to a first angle error threshold, and the maximum angular velocity is greater than or equal to the target angular velocity, it is determined that the lighting device meets the illumination angle following condition.

[0121] In this embodiment, the seat movement time and target angular velocity are calculated to determine whether the lighting device can adjust its illumination angle at an appropriate speed to match the seat's movement. By comparing the seat's movement speed and time with the lighting device's maximum angular velocity, the main control module can determine whether the lighting device can adjust to the seat's movement in a timely manner, ensuring that the lighting is always focused on the area required by the passenger. Setting an error threshold and comparing the maximum angular velocity with the target angular velocity ensure that the lighting device's current illumination angle can meet the requirements of seat movement.

[0122] The calculation process for switching the illumination angle of the lighting device from the chase mode to the follow mode is as follows:

[0123] t=i*Δt

[0124] Calculate separately

[0125] α j =α1+ω2*t

[0126]

[0127] |α j -α k |≤α min

[0128] Among them, position 1 is the initial position, Δt is the time unit, α j is the lighting device chase angle, α k is the actual movement angle of the seat, α min is the first angle error threshold.

[0129] If the calculation result does not satisfy |α j -α k |≤α min , then i=i+1, and the calculation and judgment are continued until the lighting angle of the lighting device is calculated to have caught up successfully, or t is greater than the time the seat moves.

[0130] After entering the follow mode, the next stage of the seat movement distance is calculated in units of △t, and the required angle change △α and target angular velocity △ω of the driving base are determined. The specific calculation method is as follows:

[0131]

[0132] The corresponding target angular velocity △ω is calculated to achieve the control of the light angle following between the lighting equipment and the mobile seat.

[0133] Furthermore, step S603 includes:

[0134] According to the seat movement instruction, the current seat position, the target seat position and the seat movement speed are obtained, and the seat movement time is calculated.

[0135] On the premise of maintaining the same illumination area, the current seat position and the target seat position are respectively converted into a third angle and a fourth angle corresponding to the focusing angle.

[0136] The current spotlight angle is calculated according to the current illuminated area and the distance between the current seat position and the lighting device, and the maximum adjustment speed is converted into a maximum spotlight adjustment angular speed.

[0137] The target focusing angle is calculated according to the distance between the target seat position and the lighting device and the current illumination area.

[0138] A target focusing adjustment angular velocity is calculated according to the current focusing angle, the target focusing angle, and the seat movement time.

[0139] If the difference between the current focusing angle and the third angle is less than or equal to a second angle error threshold, and the maximum focusing adjustment angular velocity is greater than or equal to the target focusing adjustment angular velocity, it is determined that the lighting device meets the illumination area following condition.

[0140] In this embodiment, the calculation of the spotlight angle and spotlight adjustment angular velocity is intended to more precisely control the lighting device's illuminated area to accommodate changes in seat position. The calculation uses the lighting device's spotlight angle as a uniform basis, converting the illuminated area at different distances into a uniform spotlight angle. Entering follow mode ensures that the lighting device's illumination angle not only responds promptly to seat movement but also provides an appropriate illuminated area during movement, meeting passenger needs.

[0141] The calculation process for switching the illumination angle of the lighting device from the chase mode to the follow mode is as follows:

[0142] t=i*Δt

[0143] Calculate separately

[0144]

[0145] θ k =θ1+ψ2*t

[0146] |θ j -θ k |≤θ min

[0147] Among them, position 1 is the initial position, Δt is the time unit, α j is the lighting device chase angle, α k is the actual movement angle of the seat, α min is the first angle error threshold.

[0148] If the calculation result does not satisfy |θ j -θ k |≤θ min , then i_i+1, continue to calculate and judge until the illumination area of ​​the lighting device is calculated to be successfully caught up, or t is greater than the time the seat moves.

[0149] In units of Δt, calculate the next stage of seat movement distance, determine the change in the aperture of the diaphragm 22 and the corresponding focusing angle, and calculate the target focusing adjustment angular velocity Δψ for the lighting equipment adjustment in the next Δt interval. The specific calculation method is as follows:

[0150]

[0151] The corresponding target angular velocity Δψ is calculated to achieve the control of the illumination area following between the lighting equipment and the mobile seat.

[0152] After completing the illumination area tracking, it is also necessary to adjust the illumination intensity of the light source 1 to ensure that the illumination area and illumination intensity do not change before and after the seat moves, thereby ensuring that the illumination effect can be maintained when the seat moves.

[0153] When the light source 1 is an LED lamp, the light intensity of the LED lamp can be changed by changing the duty cycle of the PWM (pulse width modulation) signal of the LED lamp. The adjustment of the light intensity of the LED lamp is related to the change in the size of the light-transmitting hole of the aperture 22. The specific calculation method is as follows:

[0154] P2=P1*(R1 / R2)

[0155] Wherein, P2 is the duty cycle of the adjusted PWM signal, P1 is the duty cycle of the original PWM signal, R1 is the aperture of the iris 22 before adjustment, and R2 is the aperture of the iris 22 after adjustment.

[0156] As needed, if the light source 1 is another lamp, the light intensity of the light source 1 is changed accordingly according to the change in the aperture of the diaphragm 22 in a manner similar to the above method, thereby ensuring that the final lighting effect of the lighting equipment will not change due to the lighting area moving with the seat, thereby ensuring that the same lighting scene atmosphere can be obtained after the passenger seat position changes, or ensuring that the text, numbers or patterns projected onto the seat can still remain clear when the seat moves.

[0157] In one embodiment, Figure 7 As shown, step S503 includes:

[0158] Step S701: judging whether the lighting device satisfies a first catching-up condition, a second catching-up condition and a third catching-up condition according to the seat movement instruction and the status information.

[0159] Step S702: If the lighting device meets the first catching-up condition, the lighting angle is controlled to be adjusted at the maximum angular velocity, and the lighting area is controlled to be adjusted at the maximum adjustment speed.

[0160] Step S703: If the second catching-up condition is met, the illumination angle is controlled to be adjusted at the maximum angular velocity, and the illumination area is controlled to be dynamically adjusted as the seat position changes.

[0161] Step S704: If the lighting device meets the third catching-up condition, the illumination area is controlled to be adjusted at the maximum adjustment speed, and the illumination angle is controlled to follow the movement of the seat.

[0162] In this embodiment, different catch-up conditions and corresponding control strategies are set to flexibly adjust the operating state of the lighting device according to different situations. When the illumination area is in catch-up mode, to ensure a comfortable passenger experience and prevent the lighting device from emitting unpleasant light to the user's eyes due to an improperly adjusted aperture 22, when the lighting device meets the first and second catch-up conditions, the light source 1 in the lighting device is not activated, and only the illumination angle or illumination area catch-up is performed. If the lighting device meets the second catch-up condition, the aperture 22 in the lighting device already meets the lighting requirements. In this case, the light source 1 in the lighting device can be activated and adjusted to the diffuse illumination state while the illumination angle catch-up continues.

[0163] The first catch-up condition is when calculation determines that the lighting device's illumination angle and illumination area cannot dynamically adjust to the seat's movement within a preset time. In other words, it determines that the lighting device's illumination angle and illumination area cannot follow the seat's movement under the current circumstances. In this case, the lighting device is not turned on, and the lighting device's illumination angle and illumination area are controlled to follow the seat's distance and relative position at the fastest possible adjustment speed. The adjustment of the illumination area involves adjusting the aperture of the diaphragm until the device has reached the desired position and can follow the seat's movement. At this point, the lighting device is turned on again.

[0164] The second catch-up condition is when calculation determines that the lighting device's illumination angle cannot dynamically adjust to the seat's movement within a preset time, while the lighting device's illumination area can. In this case, the lighting device's illumination angle catches up with the seat at maximum angular velocity, while the illumination area dynamically adjusts to follow the seat's movement. Once the lighting device's illumination angle catches up with the seat's position, the lighting device's illumination angle and illumination area dynamically adjust to follow the seat's movement.

[0165] The third catch-up condition is when calculation determines that the lighting device's illumination area cannot dynamically adjust to the seat's position within the preset time, while the lighting device's illumination angle can. In this case, the lighting device's illumination area is adjusted at the maximum adjustment speed, the lighting device is turned on, and the lighting device's illumination angle adjusts to the seat's position. When the lighting device's illumination angle catches up with the seat's position, the lighting device's illumination angle and illumination area dynamically adjust with the seat's movement.

[0166] If, after calculation, it is determined that the seat moves too fast, the seat displacement distance is too small, or the position difference between the seat and the lighting device is too large, the lighting angle and lighting area of ​​the lighting device cannot catch up successfully after the seat reaches the target position, then the lighting device cannot enter the follow mode during the entire process of the seat movement. After reaching the final target position, the lighting device completes all adjustments and then starts the light source 1.

[0167] Through the above steps S701-S704, the lighting device can select the most appropriate adjustment strategy according to the speed and direction of the seat movement and the maximum adjustment capability of the lighting device to improve the response speed and adaptability of the lighting device.

[0168] By dynamically adjusting the illumination angle and area, the present invention can maintain the continuity and stability of the lighting effect during seat movement. Combined with the dynamic adjustment of the illumination area, this helps improve the lighting experience for passengers in the vehicle, ensuring that passengers always receive appropriate lighting while on the move. By controlling the illumination angle to follow the movement of the seat, the lighting direction can be quickly adjusted when the seat is moved to a new position, ensuring that the lighting always covers the passenger's active area. This significantly improves the practicality and convenience of interior lighting, enhances the interactivity between the lighting equipment and the passengers, and enables passengers to have a better interior lighting experience while on the move.

[0169] An embodiment of the present invention provides a lighting device, comprising a driving base for changing the illumination angle and a focusing assembly 2 connected to the driving base for changing the illumination area. The focusing assembly 2 comprises a light source 1, a first lens 21, an aperture 22 for controlling the luminous flux, and a second lens 23, arranged sequentially from the inside to the outside. The illumination area is adjusted by changing the size of the light-transmitting hole of the aperture 22. When the lighting device is in operation, it can implement any of the steps of the aforementioned vehicle interior lighting control method.

[0170] An embodiment of the present invention provides a car, including a car body, in which the aforementioned lighting device is installed.

[0171] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0172] like Figure 8 The figure shows a hardware structure diagram of an electronic device of the present invention, including a memory 802, a processor 801 and an electronic device program on the memory 802, and the processor 801 executes the electronic device program to implement the steps of the vehicle interior lighting control method of any of the above embodiments.

[0173] Figure 8 A processor 801 is taken as an example.

[0174] The electronic device may further include an input device 803 and a display device 804 .

[0175] The processor 801, the memory 802, the input device 803 and the display device 804 may be connected via a bus or other means, with the bus connection being used as an example in the figure.

[0176] Memory 802, as a non-volatile electronic device-readable storage medium, can be used to store non-volatile software programs, non-volatile electronic device executable programs, and modules, such as the program instructions / modules corresponding to the vehicle interior lighting control method in the embodiments of this application. Processor 801 executes the non-volatile software programs, instructions, and modules stored in memory 802 to perform various functional applications and data processing, thereby implementing the vehicle interior lighting control method in the above-mentioned embodiments.

[0177] Memory 802 may include a program storage area and a data storage area. The program storage area may store an operating system and application programs required for at least one function; the data storage area may store data generated based on the vehicle interior lighting control method. Furthermore, memory 802 may include high-speed random access memory and non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state memory device. In some embodiments, memory 802 may optionally include memory remote from processor 801. Such remote memory may be connected to the apparatus for executing the vehicle interior lighting control method via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0178] The input device 803 can receive input of passenger clicks and generate signal input related to passenger settings and function control of the vehicle interior lighting control method. The display device 804 can include a display device such as a display screen.

[0179] The one or more modules are stored in the memory 802 and, when executed by the one or more processors 801 , execute the vehicle interior lighting control method in any of the above method embodiments.

[0180] When the electronic device disclosed in the present invention is in operation, it can execute all the steps of the above-mentioned method for controlling vehicle interior lighting. By controlling the lighting equipment to adjust the lighting angle and lighting area in real time according to the movement of the seat when the seat moves, the lighting equipment can be automatically controlled to make dynamic adjustments when the vehicle interior lighting scene switches and the seat moves, thereby enhancing the quality of the vehicle interior lighting.

[0181] An embodiment of the present invention provides an electronic device readable storage medium storing an electronic device program / instruction. When the electronic device program / instruction is executed by the processor 801, all steps of the vehicle interior lighting control method as described above are implemented.

[0182] In the context of the present disclosure, a storage medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or apparatus. The storage medium may be a machine-readable signal medium or a machine-readable storage medium. Alternatively, the storage medium may be a non-transitory electronic device readable storage medium, for example, a non-transitory electronic device readable storage medium may be a ROM, a random access memory (RAM), a compact disc read-only memory (CD-ROM), a magnetic tape, a floppy disk, and an optical data storage device.

[0183] An embodiment of the present invention provides an electronic device program product, including an electronic device program / instruction, which implements the steps of the vehicle interior lighting control method as described above when executed by a processor.

[0184] By running the above-mentioned electronic device program product, all steps of the vehicle interior lighting control method as described above can be executed. By controlling the lighting equipment to adjust the lighting angle and lighting area in real time according to the movement of the seat when the seat moves, the lighting equipment can be automatically controlled to make dynamic adjustments when the vehicle interior lighting scene switches and the seat moves, thereby enhancing the quality of the vehicle interior lighting.

[0185] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A method for controlling vehicle interior lighting, characterized in that: include: Obtaining lighting scene switching instructions and / or seat movement instructions; Controlling the lighting device to adjust at least one of the lighting mode and the lighting intensity according to the lighting scene switching instruction; According to the seat movement instruction, the lighting angle of the lighting device is controlled to follow the movement of the seat, and the lighting area of ​​the lighting device is controlled to be dynamically adjusted as the seat position changes, including: Acquire status information of the lighting device, the status information including the current lighting angle, the maximum angular velocity of the lighting angle adjustment, the current lighting area, and the maximum adjustment velocity of the lighting area adjustment; obtaining a current seat position, a target seat position, and a seat movement speed according to the seat movement instruction; determining whether the lighting device meets the seat following condition based on the current seat position, the target seat position, the seat movement speed, and the status information; If the lighting device meets the seat-following condition, the lighting device is controlled to enter a follow mode, in which the lighting angle is followed and the lighting area is dynamically adjusted at an adjustment speed that matches the seat movement speed; If the lighting device does not meet the seat-following condition, the lighting device is controlled to enter a catching-up mode, in which the lighting device catches up with the position of the seat at a maximum angular velocity and a maximum adjustment speed.

2. The vehicle interior lighting control method according to claim 1, characterized in that: After dynamically adjusting the illumination area of ​​the lighting device according to the seat position, the method further includes: The lighting device is controlled to adjust the illumination intensity accordingly according to the adjustment of the illumination area.

3. The method for controlling vehicle interior lighting according to claim 2, wherein: The determining whether the lighting device meets the seat-following condition includes: determining, according to the seat movement instruction, the current illumination angle, and the maximum angular velocity, whether the lighting device satisfies an illumination angle following condition; determining, according to the seat movement instruction, the current illumination area, and the maximum adjustment speed, whether the lighting device satisfies an illumination area following condition; If the lighting device satisfies both the illumination angle following condition and the illumination area following condition, it is determined that the lighting device satisfies the seat following condition.

4. The method for controlling vehicle interior lighting according to claim 3, wherein: The determining, based on the seat movement instruction, the current illumination angle, and the maximum angular velocity, whether the lighting device satisfies an illumination angle following condition includes: According to the seat movement instruction, the current seat position, the target seat position and the seat movement speed are obtained, and the seat movement time is calculated; Converting the current seat position and the target seat position into a first angle and a second angle corresponding to illumination angles, respectively; calculating a target angular velocity according to the first angle, the second angle, and the seat movement time; If the difference between the current illumination angle and the first angle is less than or equal to a first angle error threshold, and the maximum angular velocity is greater than or equal to the target angular velocity, it is determined that the lighting device meets the illumination angle following condition.

5. The method for controlling vehicle interior lighting according to claim 3, wherein: The determining, based on the seat movement instruction, the current illumination area, and the maximum adjustment speed, whether the lighting device satisfies an illumination area following condition includes: According to the seat movement instruction, the current seat position, the target seat position and the seat movement speed are obtained, and the seat movement time is calculated; On the premise of maintaining the same illumination area, the current seat position and the target seat position are converted into a third angle and a fourth angle corresponding to the focusing angle respectively; Calculating a current spotlight angle according to the current illuminated area and the distance between the current seat position and the lighting device, and converting the maximum adjustment speed into a maximum spotlight adjustment angular speed; Calculating a target spotlight angle based on the distance between the target seat position and the lighting device and the current illuminated area; Calculating a target focusing adjustment angular velocity according to the current focusing angle, the target focusing angle, and the seat movement time; If the difference between the current focusing angle and the third angle is less than or equal to a second angle error threshold, and the maximum focusing adjustment angular velocity is greater than or equal to the target focusing adjustment angular velocity, it is determined that the lighting device meets the illumination area following condition.

6. The method for controlling vehicle interior lighting according to claim 1, wherein: If the lighting device does not meet the following seat condition, controlling the lighting device to enter a catch-up mode includes: determining, based on the seat movement instruction and the status information, whether the lighting device satisfies a first catching-up condition, a second catching-up condition, and a third catching-up condition; If the lighting device satisfies the first catching-up condition, controlling the illumination angle to be adjusted at a maximum angular velocity, and controlling the illumination area to be adjusted at a maximum adjustment speed; If the second catching-up condition is met, the illumination angle is controlled to be adjusted at a maximum angular velocity, and the illumination area is controlled to be dynamically adjusted as the seat position changes; If the lighting device meets the third catching-up condition, the lighting area is controlled to be adjusted at the maximum adjustment speed, and the lighting angle is controlled to follow the movement of the seat.

7. A lighting device for implementing the vehicle interior lighting control method according to any one of claims 1 to 6, characterized in that: The invention comprises a driving base for changing the illumination angle and a focusing assembly (2) connected to the driving base for changing the illumination area. The focusing assembly (2) comprises a light source (1), a first lens (21), an aperture (22) for controlling the light flux, and a second lens (23) arranged in sequence from the inside to the outside. The illumination area is adjusted by changing the light transmission hole size of the aperture (22).

8. A car, comprising a car body, characterized in that: The lighting device according to claim 7 is arranged in the automobile body.

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