Vehicle interior illumination control method, illumination equipment and automobile

Abstract

The invention discloses a vehicle interior illumination control method, illumination equipment and an automobile. The method comprises the steps that an illumination scene switching instruction and / or a seat moving instruction are / is obtained; according to the illumination scene switching instruction, controlling illumination equipment to adjust at least one of an illumination mode and illumination intensity; according to the seat moving instruction, the illumination angle of the illumination equipment is controlled to move along with the seat, and the illumination area of the illumination equipment is controlled to be dynamically adjusted along with the position change of the seat. According to the vehicle interior illumination control method provided by the invention, the illumination equipment can be controlled to adjust the illumination angle and the illumination area in real time according to the movement of the seat when the seat moves, so that the illumination equipment is automatically controlled to make dynamic adjustment when the vehicle interior illumination scene is switched and the seat moves, the vehicle interior illumination quality is enhanced, and the passenger experience is improved.

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 car. Background Art

[0002] With the development of technology and the improvement of living standards, people's requirements for cars are not limited to operating performance, safety and reliability, but also begin to pay more and more attention to the quality of car interior lighting. At present, the lighting area of ​​most vehicle interior lights has been pre-fixed during installation, and passengers generally cannot adjust it, or the lighting angle can only be adjusted manually by passengers. When switching lighting scenes, the interaction between the lighting effect and the passenger status is low, and it is difficult for passengers to easily obtain the ideal 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 prior art and to provide a control method for vehicle interior lighting, a lighting device and a car, wherein the control method for vehicle interior lighting can control the lighting device to adjust the lighting angle and the lighting area in real time according to the movement of the seat when the seat moves, thereby automatically controlling the lighting device to make dynamic adjustments when the vehicle interior lighting scene switches and the seat moves, thereby enhancing the quality of the vehicle interior lighting and significantly improving the interactivity between the vehicle interior lighting and the passenger status, thereby improving the passenger 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] According to the lighting scene switching instruction, control the lighting device to adjust at least one of the lighting mode and the lighting intensity;

[0008] 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.

[0009] In one of the optional technical solutions, after the illumination area of ​​the lighting device is dynamically adjusted 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, according to the seat movement instruction, controlling the illumination angle of the lighting device to follow the seat movement, 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 following seat 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] The state information of the lighting device is obtained, 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] According to the seat movement instruction, the current illumination angle and the maximum angular velocity, determining whether the lighting device meets an illumination angle following condition;

[0018] According to the seat movement instruction, the current illumination area and the maximum adjustment speed, determining whether the lighting device meets the 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 according to 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 according to 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 respectively converted into a third angle and a fourth angle corresponding to the focusing angle;

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

[0029] Calculating a target spotlight angle according to the distance between the target seat position and the lighting device and the current illumination area;

[0030] Calculating a target spotlight adjustment angular velocity according to the current spotlight angle, the target spotlight 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 the 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 state 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, 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 velocity;

[0035] 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;

[0036] 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.

[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 lighting angle and a focusing assembly connected to the driving base for changing the lighting 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 lighting area is adjusted by changing the aperture of the aperture.

[0038] The technical solution of the present invention provides a car, comprising a car body, wherein the above-mentioned lighting device is arranged in the car body.

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

[0040] The vehicle interior lighting control method provided by 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 is switched and the seat is moved, so as to improve the passenger's riding experience. The specific control method is that when the vehicle interior lighting scene switching controlled by the passenger is detected, 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, so as to automatically control the lighting equipment to make dynamic adjustments when the vehicle interior lighting scene is switched and the seat moves, and by maintaining the quality of the vehicle interior lighting, it is ensured that the passenger can still obtain the same lighting scene atmosphere after the 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 only for illustrative purposes 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 provided by 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 in-vehicle state provided by an embodiment of the present invention;

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

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

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

[0048] Figure 7 A flowchart of a method for controlling interior lighting of a vehicle provided by yet 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 implementation of the present invention will be further described below in conjunction with the accompanying drawings.

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

[0055] Step S101: Obtain lighting scene switching instructions and / or seat movement instructions.

[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] Through step S101, instructions are obtained and the adjustment method of the lighting equipment is determined. When the main control module of the vehicle receives the lighting scene switching instruction, step S102 is executed. The lighting mode and light intensity are changed by controlling the light emission 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, flickering 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 the 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 light tracing atmosphere in the car felt by the passengers. Therefore, the actual lighting area can be maintained by changing the focusing parameters of the lighting equipment to ensure the consistency of the lighting effect in the car. The movement of the seat also includes the change of the seat posture, such as changing the seat to a zero-gravity state, including deformations such as adjusting the backrest backward and unfolding the leg rest. At this time, the actual lighting position will also change. Through step S103, the focus position under different lighting scenes can also be realized to control the change of the lighting angle and the maintenance of the lighting area. When the lighting scene switching instruction and the seat movement instruction are received at the same time, step S102 and step S103 are executed at the same time.

[0059] As a preference, 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 illumination area is dynamically adjusted as the seat moves, the illumination intensity of the lighting device is changed to compensate for the change in illumination brightness caused by the change in illumination area. For example, when receiving an instruction that the lighting device moves with the seat and keeps the illumination area unchanged, in order to keep the illumination area actually irradiated on the seat unchanged, the focusing effect of the lighting device will inevitably change, which will in turn affect the illumination brightness of the lighting device. In order to ensure that the change in illumination area does not affect the final illumination effect, the illumination brightness of the lighting device needs to be adjusted synchronously according to the change in the opening size of the aperture light hole. In other lighting scenes, the relationship between the change in illumination intensity and illumination area is adjusted according to the needs of the specific scene.

[0062] The lighting equipment therein is not completely 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 main control module of the vehicle 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, including 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 including 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 changed by changing the size of the light-transmitting hole of the aperture 22 to ensure that the illumination area actually irradiated on the seat can move with the seat. However, by changing the size of the light-transmitting hole of the aperture 22, that is, changing the light-transmitting area, the luminous flux of the light source 1 in the lighting device will also be affected. Even if the illumination area is kept the same, the light brightness is changed, thereby changing the illumination effect. For this reason, it is also necessary to adjust the illumination intensity of the light source 1 synchronously while the size of the light-transmitting hole of the aperture 22 is changed. For example, when the size of the light-transmitting hole of the aperture 22 is reduced to reduce the luminous flux, the illumination intensity is correspondingly increased to ensure that the actual illumination intensity remains unchanged.

[0066] Furthermore, the lighting device adopts a design combining a driving base and a focusing assembly 2, wherein the driving base can flexibly adjust the illumination angle of the lighting device, ensuring that the illumination can always accurately cover the area where the occupants are located as the seat position moves, significantly improving the practicality and comfort of the lighting effect. At the same time, the focusing 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 luminous intensity, color temperature, and flickering frequency of the light source 1, the effect of changing the illumination intensity and illumination mode in step S102 can be achieved. By accurately controlling the aperture size of the aperture 22, the illumination area can be accurately adjusted to meet the occupants' requirements for illumination range in different scenes. In step S103, when the seat in the car moves, the driving base can be controlled to drive the focusing assembly 2 to change the illumination angle to follow the movement of the seat, and the illumination area can be dynamically adjusted with the seat position by changing the beam limiting state of the aperture 22. For example, when a passenger enters nap mode and pushes the seat back, the lighting angle of the lighting device follows the seat during the movement of the seat, keeping the actual lighting area irradiated to the passenger unchanged before and after the seat moves, thereby improving the passenger experience.

[0067] Among them, the aperture 22 refers to an entity that limits the light beam in the optical system. The aperture 22 can be the edge of the lens, a frame or a specially set 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 embodiment of the present invention uses an aperture aperture to achieve precise control of the illuminated area. The adjustment of the illuminated area hereinafter is actually achieved by controlling the opening size of the aperture aperture, that is, by changing the light-transmitting hole size of the aperture 22 to change the focusing effect, and the "aperture" refers to the diameter of the light-transmitting hole of the aperture 22.

[0068] For example, when the lighting device projects a pattern, text or number onto a seat, when the seat moves, the projection effect of the pattern, text or number can be changed by changing the light-transmitting hole size of the aperture 22. If the distance between the seat and the lighting device increases, the actual projection area is kept unchanged by reducing the light-transmitting hole size of the aperture 22, and the light intensity of the light source 1 in the lighting device is increased accordingly to ensure that the projection clarity is maintained when the seat position changes. If the distance between the seat and the lighting device decreases, the actual projection area is kept unchanged by increasing the light-transmitting hole size of the aperture 22, and the light intensity of the light source 1 in the lighting device is reduced accordingly to maintain the projection clarity. 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.

[0069] Preferably, the first lens 21 and the second lens 23 are both convex lenses to ensure that a parallel light region can be generated between the first lens 21 and the second lens 23. The aperture 22 is set between the first lens 21 and the second lens 23, a pre-light focusing region is formed between the light source 1 and the first lens 21, a parallel light region is formed between the first lens 21 and the second lens 23, and a focusing region is formed between the second lens 23 and the outside. By setting the aperture 22 in the parallel light region, the area of ​​the parallel light irradiating the second lens 23 can be changed by changing the aperture of the aperture 22, thereby accurately changing the focal length of the focusing region and the light area actually irradiated on the seat.

[0070] In summary, the vehicle interior lighting control method provided in 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 controlled 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 switches 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 As shown in the figure, the relative position relationship between the seat and the lighting device in the car, X is the horizontal distance between the seat and the lighting device, H is the vertical distance between the seat and the lighting device, L is the length of the line connecting the lighting device and the seat, that is, the distance between the lighting device and the seat, α is the illumination angle, and the illumination angle is the angle between the line connecting the lighting device and the seat and the horizontal line. As the seat moves, when the seat moves from the initial position to position 1, the length will change after L changes to L1, thereby affecting the illumination area actually projected by the lighting device on the seat.

[0073] In one embodiment, if Figure 5 As shown, according to the seat movement instruction, controlling the illumination angle of the lighting device to follow the seat movement, 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 following seat condition, control the lighting device to enter a catching-up mode.

[0077] In this embodiment, the driving base and the aperture 22 in the lighting device are limited by the device itself, and there is an adjustment speed range, specifically, the adjustment angular velocity range ω1~ω2 of the lighting angle affected by the driving base, and the illumination area adjustment speed range ψ1~ψ2 represented by the aperture expansion and contraction speed of the aperture 22. In the following mode, the illumination angle is followed and the illumination area is dynamically adjusted at an adjustment speed matching the seat movement speed. In the chasing mode, the lighting device chases 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 diaphragm 22 and the optical axis, and the aperture R of the diaphragm 22 is the diameter of the opening in the diaphragm 22. max is the maximum focusing angle, Rmax The maximum aperture is 22.

[0079] In the catch-up mode, the seat is at position 1 as the initial position and the parameters with subscript 1 are all the parameters related to the initial position. The lighting equipment is adjusted at the maximum angular velocity ω2 and the maximum adjustment speed ψ2 to catch up with the seat as soon as possible. Therefore, it is necessary to pre-calculate the lighting angle of the lighting equipment, 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 a preset time.

[0080] Among them, the illumination angle α when the pursuit is successful t The calculation method is as follows:

[0081]

[0082] Aperture R when the chase is successful t and the focusing angle θ t The calculation method is 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 when catching up is successful, the speed of adjusting the following seat required for subsequent entering the following mode can be calculated in advance to achieve a smooth transition from the catching up mode to the following mode.

[0086] In the following 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] Among them, 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, and the illumination angle of the lighting device is controlled by the angular velocity Δω to follow the movement of the seat. Since the seat does not move in a circular motion but in a linear motion, even a seat that moves at a uniform speed cannot ensure that the angle changes at a uniform speed. 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 change in the vertical distance between the seat and the lighting device within Δt can be calculated as ΔLo.

[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 illumination area to change dynamically 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 state information of the lighting device is obtained to ensure that the main control module can make accurate judgments and adjustments based on the actual state of the current lighting device. The state information includes parameters such as illumination angle, illumination area, maximum angular velocity, and maximum adjustment speed, which are the basis for the lighting device to adjust its function to adapt to the movement of the seat and are the parameters required for automatic control of the lighting device to follow. By obtaining this information in real time, the system can predict the responsiveness of the lighting device when the seat moves, thereby making more accurate adjustments.

[0111] In one embodiment, if 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 the lighting angle following condition according to the seat movement instruction, the current lighting 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, judging whether the lighting device meets the illumination angle following condition and the illumination area following condition is to ensure that the lighting device can respond to the movement of the seat in a timely and accurate manner. By obtaining the position information and displacement information of the seat in the seat movement instruction, and comparing them with the current illumination angle and area of ​​the lighting device, and combining the extreme activity capacity of the lighting device, the main control module can judge whether the lighting device can complete the need for following the lighting during the seat movement. If the need for dynamically adjusting the lighting following the seat movement cannot be met at the current moment, the lighting device is controlled to enter the state of extreme adjustment speed, that is, enter the catch-up mode, and catch up with the position of the seat. If the catch-up is successful in the middle of the seat movement, the lighting device is controlled to enter the follow-up mode. The setting of the catch-up mode can cope with the situation where some lighting devices cannot meet the follow-up mode. The driver and passengers do not need additional intervention, and the whole process of dynamic adjustment of the illumination angle and illumination area is completed automatically.

[0116] Further, 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 movement of the seat. By comparing the seat movement speed and time with the maximum angular velocity of the lighting device, the main control module can determine whether the lighting device can be adjusted in time to adapt to the movement of the seat, thereby ensuring that the lighting is always focused on the area required by the passenger. Setting the error threshold and comparing the maximum angular velocity with the target angular velocity is to ensure that the current illumination angle of the lighting device can meet the requirements of following the movement of the seat.

[0122] The calculation process of switching the illumination angle of the lighting device from the chasing mode to the following 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 continue to perform calculations and judgments until it is calculated that the illumination angle of the lighting device has been successfully caught up, or t is greater than the time the seat moves.

[0130] After entering the following mode, the seat's next moving 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 realize the control of the light angle following between the lighting equipment and the mobile seat.

[0133] Further, 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 illumination 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 spotlight angle is calculated according to the distance between the target seat position and the lighting device and the current illumination area.

[0138] The 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 the 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 focus angle and the focus adjustment angular velocity are calculated to more accurately control the illumination area of ​​the lighting device to adapt to the change of the seat position. In the calculation process, the focus angle of the lighting device is uniformly used as the calculation basis, and the illumination area at different distances is uniformly converted into the focus angle. After entering the follow mode, it can be ensured that the illumination angle of the lighting device can not only respond to the movement of the seat in time, but also provide an appropriate illumination area for the seat during the movement to meet the needs of the passengers.

[0141] The calculation process of switching the illumination angle of the lighting device from the chasing mode to the following 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 catch up successfully, or t is greater than the time the seat moves.

[0149] In units of Δt, calculate the moving distance of the seat in the next stage, determine the change in the aperture of the diaphragm 22 and the corresponding focusing angle, and calculate the target focusing adjustment angular velocity Δψ of 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 realize the control of the illumination area following between the lighting device 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 the 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 adjusted duty cycle of the PWM signal, P1 is the original duty cycle of the 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 other lamps, 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 aforementioned method, thereby ensuring that the final lighting effect of the lighting device will not change due to the lighting area moving with the seat, thereby ensuring that the same lighting scene atmosphere is obtained after the passenger seat position changes, or ensuring that the text, numbers or patterns projected onto the seat remain clear when the seat moves.

[0157] In one embodiment, if 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 illumination angle is controlled to be adjusted at the maximum angular velocity, and the illumination 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 catching-up conditions and corresponding control strategies are set in order to flexibly adjust the working state of the lighting device according to different situations. When the illumination area is in the catching-up mode, in order to ensure the passenger experience and avoid the lighting device that has not adjusted the aperture 22 to emit light that makes the user's eyes uncomfortable, that is, when the lighting device meets the first catching-up condition and the second catching-up condition, the light source 1 in the lighting device is not started first, and only the illumination angle catching-up or the illumination area catching-up is performed. If the lighting device meets the second catching-up condition, the aperture 22 in the lighting device has met the lighting requirements. At this time, the light source 1 in the lighting device can be turned on first and adjusted to the diffuse lighting state, while continuing to catch up with the illumination angle.

[0163] The first catch-up condition is to determine through calculation that the illumination angle and illumination area of ​​the lighting device cannot meet the requirements of dynamic adjustment to follow the movement of the seat position within the preset time, that is, to determine that the illumination angle and illumination area of ​​the lighting device cannot follow the movement of the seat under the current situation. At this time, the lighting device is not turned on, and the illumination angle and illumination area of ​​the lighting device are controlled to catch up with the distance and relative position of the seat at the fastest adjustment speed. The adjustment of the illumination area is to adjust the aperture of the diaphragm until it catches up to the position and can follow the movement of the seat, and then the lighting device is turned on.

[0164] The second catch-up condition is that it is determined through calculation that the illumination angle of the lighting device cannot meet the requirements of dynamic adjustment with the movement of the seat position within the preset time, while the illumination area of ​​the lighting device can meet the requirements of dynamic adjustment with the movement of the seat position. At this time, the illumination angle of the lighting device catches up with the direction of the seat at the maximum angular velocity, and the illumination area dynamically adjusts with the movement of the seat. When the illumination angle of the lighting device catches up with the position of the seat, the illumination angle of the lighting device follows the movement of the seat and the illumination area changes dynamically with the movement of the seat.

[0165] The third catch-up condition is to determine through calculation that the illumination area of ​​the lighting device cannot meet the dynamic adjustment to follow the seat position movement within the preset time, but the illumination angle of the lighting device can meet the movement to follow the seat position. At this time, the illumination area of ​​the lighting device is adjusted at the maximum adjustment speed, the lighting device is turned on, and the illumination angle of the lighting device follows the seat adjustment. When the illumination angle of the lighting device catches up with the seat position, the illumination angle of the lighting device follows the seat movement and the illumination area changes dynamically with the seat movement.

[0166] If after calculation, it is found that the lighting angle and lighting area of ​​the lighting device cannot catch up successfully after the seat reaches the target position due to the seat moving too fast, the seat displacement distance is too small, or the position difference between the seat and the lighting device is too large, then at this time, the lighting device cannot enter the follow mode during the entire process of the seat movement. After the lighting device reaches the final target position, it 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] The present invention can maintain the continuity and stability of the lighting effect during the movement of the seat by controlling the dynamic adjustment of the lighting angle and the lighting area. Combined with the dynamic adjustment of the lighting area, it helps to improve the lighting experience of passengers in the car, and passengers can always get proper lighting when moving. By controlling the lighting angle to follow the movement of the seat, the lighting direction can be quickly adjusted when the seat moves to a new position to ensure that the lighting always covers the passenger's activity area, which significantly improves the practicality and convenience of the interior lighting, and the lighting equipment is more interactive with the passengers, so that passengers can get a better interior lighting experience when moving.

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

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

[0171] It should be understood that the order of execution of the steps in the above embodiment does not necessarily 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 embodiment 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, and the figure takes the connection via a bus as an example.

[0176] The memory 802 is a non-volatile electronic device readable storage medium, which can be used to store non-volatile software programs, non-volatile electronic device executable programs and modules, such as program instructions / modules corresponding to the vehicle interior lighting control method in the embodiment of the present application. The processor 801 executes various functional applications and data processing by running the non-volatile software programs, instructions and modules stored in the memory 802, that is, the vehicle interior lighting control method in the above embodiment is implemented.

[0177] The memory 802 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required by at least one function; the data storage area may store data created according to the use of the vehicle interior lighting control method, etc. In addition, the memory 802 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some embodiments, the memory 802 may optionally include a memory remotely arranged relative to the processor 801, and these remote memories may be connected to the device for executing the vehicle interior lighting control method via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0178] The input device 803 can receive input passenger clicks and generate signal inputs related to passenger settings and function control of the vehicle interior lighting control method. The display device 804 can include display devices 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 , the vehicle interior lighting control method in any of the above method embodiments is executed.

[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 interior vehicle lighting, by controlling the lighting device to adjust the lighting angle and the lighting area in real time according to the movement of the seat when the seat moves, thereby automatically controlling the lighting device to make dynamic adjustments when the interior vehicle lighting scene switches and the seat moves, thereby enhancing the quality of interior vehicle lighting.

[0181] An embodiment of the present invention provides an electronic device readable storage medium, which stores 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-temporary electronic device readable storage medium, for example, a non-temporary electronic device readable storage medium may be a ROM, a random access memory (Random Access Memory, RAM), a compact disc read-only memory (Compact Disc ROM, CD-ROM), a magnetic tape, a floppy disk, and an optical data storage device, etc.

[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. When the seat moves, the lighting equipment is controlled to adjust the lighting angle and lighting area in real time according to the movement of the seat, so that the lighting equipment is automatically controlled to make dynamic adjustments when the vehicle interior lighting scene switches and the seat moves, thereby enhancing the interior lighting quality.

[0185] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A method for controlling vehicle interior lighting, characterized in that: include: Obtaining lighting scene switching instructions and / or seat movement instructions; According to the lighting scene switching instruction, control the lighting device to adjust at least one of the lighting mode and the lighting intensity; 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.

2. The method for controlling vehicle interior lighting according to claim 1, characterized in that: After the illumination area of ​​the lighting device is dynamically adjusted as the seat position changes, 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 1, characterized in that: According to the seat movement instruction, controlling the illumination angle of the lighting device to follow the seat movement, and controlling the illumination area of ​​the lighting device to dynamically adjust as the seat position changes, includes: Determining whether the lighting device meets the following seat condition; If the lighting device meets the seat-following condition, controlling the lighting device to enter a seat-following mode; If the lighting device does not meet the following seat condition, the lighting device is controlled to enter a catching-up mode.

4. The method for controlling vehicle interior lighting according to claim 3, characterized in that: Before determining whether the lighting device meets the seat following condition, the method further includes: The state information of the lighting device is obtained, 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.

5. The method for controlling vehicle interior lighting according to claim 4, characterized in that: The determining whether the lighting device meets the seat following condition includes: According to the seat movement instruction, the current illumination angle and the maximum angular velocity, determining whether the lighting device meets an illumination angle following condition; According to the seat movement instruction, the current illumination area and the maximum adjustment speed, determining whether the lighting device meets the 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.

6. The method for controlling vehicle interior lighting according to claim 5, characterized in that: The determining, according to the seat movement instruction, the current illumination angle and the maximum angular velocity, whether the lighting device satisfies the illumination angle following condition comprises: 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.

7. The method for controlling vehicle interior lighting according to claim 5, characterized in that: The determining, according to the seat movement instruction, the current illumination area and the maximum adjustment speed, whether the lighting device satisfies the illumination area following condition comprises: 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 respectively converted into a third angle and a fourth angle corresponding to the focusing angle; Calculate the current spotlight angle according to the current illumination area and the distance between the current seat position and the lighting device, and convert the maximum adjustment speed into a maximum spotlight adjustment angular speed; Calculating a target spotlight angle according to the distance between the target seat position and the lighting device and the current illumination area; Calculating a target spotlight adjustment angular velocity according to the current spotlight angle, the target spotlight angle and the seat movement time; If the difference between the current focusing angle and the third angle is less than or equal to the 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.

8. The method for controlling vehicle interior lighting according to claim 3, characterized in that: If the lighting device does not meet the following seat condition, controlling the lighting device to enter a catching-up mode comprises: determining, according to the seat movement instruction and the state 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, 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 velocity; 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; 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.

9. A lighting device for implementing the vehicle interior lighting control method according to any one of claims 1 to 7, 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).

10. A car, comprising a car body, characterized in that: The automobile body is provided with a lighting device as claimed in claim 9, and the lighting device can implement the steps of the vehicle interior lighting control method as claimed in any one of claims 1 to 8.

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