In-vehicle lighting system

Abstract

Provided is an in-vehicle illumination system that provides light to an occupant inside a vehicle and adjusts the irradiation area, brightness, and color temperature of the light in accordance with the behavior, state, posture, and the like of the occupant, thereby improving the convenience of the occupant and enhancing the in-vehicle illumination.

Description

Technical Field

[0001] The present invention relates to an in-vehicle lighting system, and more particularly to an in-vehicle lighting system that provides light to the interior of a vehicle and obtains the actions, states, and postures of passengers to adjust the illumination area, brightness, and color temperature of the light, thereby improving the convenience of the passengers and making the in-vehicle lighting more advanced. Background Art

[0002] In order to illuminate the interior space of a vehicle, an interior lamp is provided. Such interior lighting is used to illuminate the interior of the vehicle when a door is opened or according to an operation of a passenger, and is usually provided on the roof of the vehicle interior space.

[0003] Recently, autonomous driving of vehicles is being developed. In response to autonomous driving, the space inside the vehicle is not limited to the driver's seat, the front passenger seat, and the rear seat, but seating space is provided in various positions by changing the position of the seats.

[0004] As an example, the position of seats can be changed inside a vehicle so that passengers can sit together facing each other in an autonomous driving state. However, conventional interior lighting has limited locations in the vehicle where light is provided. That is, the interior lighting is provided at the center of the upper end of the front seats and the center of the upper end of the rear seats, so that when the position of the seats is changed, the position where the interior lighting provides light is fixed, and the angle cannot be adjusted according to the body shape or preferences of the passengers. As a result, when the seat position of the passengers moves, due to the light distribution of the interior lighting, the lighting may be blocked by the passenger's body or irradiate light to unnecessary places, and the position where the passenger really needs light may not be irradiated, causing inconvenience to the passenger.

[0005] Furthermore, if the light distribution angle of the interior lighting is excessively widened in order to illuminate all positions of the seat, there is a problem that unnecessary light is irradiated onto other passengers.

[0006] Various matters described in the above background technology are only used to help understand the background of the present disclosure and cannot be considered to fall within the scope of the prior art known to those skilled in the art.

[0007] Prior art literature

[0008] Patent document 1: KR10-2021-0101128A (August 18, 2021) Summary of the invention

[0009] The object of the present invention is to provide an in-vehicle lighting system that provides light to the interior of a vehicle and obtains the actions, status, posture, etc. of the occupants to adjust the illumination area, brightness, and color temperature of the light, thereby improving the convenience of the occupants and making the in-vehicle lighting more advanced.

[0010] In order to achieve the above-mentioned purpose, the in-vehicle lighting system based on the present invention includes: a lighting unit, which includes a plurality of light sources whose illumination areas are set to be different, and each light source can adjust the brightness and color temperature of the light to achieve a dimming function; an information collection unit, which is configured to confirm the vehicle status information and occupant information, the occupant information including the position of the occupant in the vehicle and the posture of the occupant; and a control unit, which is configured to control the lighting unit to adjust the brightness of the light so as to emit light to the position of the occupant when the occupant information is input through the information collection unit, and to adjust the color temperature of the light emitted by the lighting unit when the information based on the posture of the occupant is input.

[0011] The above-mentioned in-vehicle lighting system is characterized in that a plurality of lighting units are provided inside the vehicle, and the plurality of lighting units are arranged so that an illumination area is set for each seat.

[0012] The above-mentioned in-vehicle lighting system is characterized in that the information collecting unit collects information based on whether or not an occupant is seated, the position of the seat, and the tilt angle of the seat.

[0013] The above-mentioned vehicle interior lighting system is characterized in that when the information that the seat where the occupant is seated is adjusted forward and backward is inputted through the information collecting unit, the control unit causes the light source of the lighting unit having an illumination area corresponding to the position of the moved seat to emit light.

[0014] The above-mentioned in-vehicle lighting system is characterized in that the control unit is configured to pre-store the color temperature of each light source based on the tilt angle range of the seat, and when the tilt angle of the seat is input through the information collection unit, the lighting unit is controlled to emit light of a color temperature corresponding to the tilt angle of the seat.

[0015] The above-mentioned in-vehicle lighting system is characterized in that the control unit controls the lighting unit to reduce the color temperature to emit warm light when the tilt angle of the seat increases, and to increase the color temperature to emit cool light when the tilt angle decreases.

[0016] The above-mentioned in-vehicle lighting system is characterized in that when the seat tilt angle is input through the information collecting unit, the control unit controls the lighting unit to gradually reduce the brightness of the light when the seat tilt angle increases, and gradually increase the brightness of the light when the seat tilt angle decreases.

[0017] The above-mentioned in-vehicle lighting system is characterized in that, when the seat is arranged to be rotatable, a part of the lighting unit further includes a rotating light source having an illumination area for the rotating seat.

[0018] The above-mentioned in-vehicle lighting system is characterized in that the information collecting unit collects information based on the rotation angle of the seat, and when the control unit receives information about the rotation of the seat where the occupant is sitting and the position adjustment is performed, the control unit emits light through a light source having an illumination area corresponding to the position of the rotated seat.

[0019] The above-mentioned in-vehicle lighting system is characterized in that a plurality of lighting units are arranged, and a lighting unit having an illumination area for a part of the rear seats excluding the frontmost seats includes a rotating light source.

[0020] The above-mentioned in-vehicle lighting system is characterized in that the information collecting unit collects information based on obstacle factors when the seat is rotated, and when the control unit is input with information about the existence of a seat that creates an obstacle through the information collecting unit, the control unit controls the lighting unit to emit light in a manner that the irradiation area includes the seat that creates the obstacle.

[0021] The above-mentioned in-vehicle lighting system is characterized in that the control unit is configured to sequentially light up the light sources of the lighting unit in the direction of rotation when the seat is rotated.

[0022] The above-mentioned in-vehicle lighting system is characterized in that the information collection unit also confirms the position information of the occupants outside the vehicle, and when the control unit is input with information that the occupants are detected within a certain distance from the vehicle through the information collection unit, the control unit realizes ambient lighting through a part of the multiple light sources that constitute the lighting unit.

[0023] The above-mentioned in-vehicle lighting system is characterized in that the information collecting unit further confirms the door opening and closing information, and when the information that the door is open is input through the information collecting unit, the control unit lights up each light source of the lighting unit in a preset welcome mode.

[0024] The above-mentioned in-vehicle lighting system is characterized in that the information collecting unit further confirms eye position information of an occupant sitting on the seat, and the control unit controls each light source so that the eyes of the occupant are not included in the illumination area of ​​the lighting unit.

[0025] The above-mentioned in-vehicle lighting system is characterized in that the control unit is input with eye position information of the occupant sitting in the driver's seat, and when the driver's drowsiness is confirmed based on the driver's eye position information, each light source is controlled in such a way that the illumination area of ​​the lighting unit includes the occupant's eyes.

[0026] The above-mentioned in-vehicle lighting system is characterized in that, when the control unit confirms that the driver is in a sleepy state, the control unit increases the color temperature through the control of the lighting unit to emit cool-colored light.

[0027] The above-mentioned in-vehicle lighting system is characterized in that the information collection unit also confirms the headrest information of the seat, and when the control unit is input with information about the change in the position of the headrest, it reconfirms the eye position information and controls the lighting unit to adjust the illumination area of ​​the lighting unit so that it does not include the eyes of the occupant.

[0028] The above-mentioned in-vehicle lighting system is characterized in that the information collecting unit also confirms the leg rest information of the seat, and the control unit reduces the color temperature through the control of the lighting unit when the leg rest of the seat is unfolded to emit warm light and adjust it to reduce the brightness.

[0029] The in-vehicle lighting system implemented with the structure as described above provides light to the passengers inside the vehicle and adjusts the illumination area, brightness, and color temperature of the light according to the passengers' actions, states, and postures, thereby improving the convenience of the passengers and making the in-vehicle lighting more advanced.

[0030] In addition, the illumination area, brightness, and color temperature of the light are adjusted according to the driver's condition, which has the following effects: preventing safety accidents before they happen, guiding safe driving, and reducing the proportion of traffic accidents and the related costs based on them. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural diagram of the in-vehicle lighting system based on the present invention.

[0032] Figure 2 FIG. 1 is a diagram showing a vehicle having an interior lighting system according to an embodiment of the present invention.

[0033] Figure 3 This is a diagram showing a first row of central lighting units in the lighting unit according to an embodiment of the present invention.

[0034] Figure 4 It is a diagram showing the second row of central lighting units in the lighting unit according to one embodiment of the present invention.

[0035] Figure 5 It is a diagram showing a sub-illumination unit in the illumination unit according to an embodiment of the present invention.

[0036] Figure 6 It is a figure which shows the irradiation area in the state where a seat moves forward.

[0037] Figure 7 It is a figure which shows the irradiation area in the state which moved the seat toward the center.

[0038] Figure 8 It is a figure which shows the irradiation area in the state where a seat moves rearward.

[0039] Fig. 9 : is a graph showing the color temperature in a state where the reclining angle of the seat increases.

[0040] Fig.10 It is a diagram showing the color temperature in a state where the reclining angle of the seat is reduced.

[0041] Fig.11 It is a diagram showing the irradiation area in a state where the front seats are turned.

[0042] Fig.12 It is a diagram for explaining the operation of the lighting unit based on the position of the occupant outside the vehicle.

[0043] Figure 13 to Figure 14 It is a flow chart of the in-vehicle lighting system based on the present invention.

[0044] Description of Reference Numerals

[0045] 100: Lighting Department

[0046] 100a: First row center lighting unit

[0047] 100b: Second row center lighting

[0048] 100c: Auxiliary lighting department

[0049] 110: Light source

[0050] 110a: Rotating light source

[0051] 200: Information Collection Department

[0052] 300: Control Department

[0053] a: Camera sensor

[0054] b: Seat belt sensor

[0055] c: Seat position sensor

[0056] d: Smart key

[0057] e: Car door

[0058] f: Headrest

[0059] g: Leg support. DETAILED DESCRIPTION

[0060] Hereinafter, the embodiments disclosed in this specification will be described in detail with reference to the accompanying drawings. In this specification, for the same or similar elements, the same reference numerals are attached in any figure and repeated description thereof is omitted.

[0061] The suffixes "module" and "unit" used in the following description for the components are added or mixed only for the convenience of writing the description, and they themselves have no special meaning or function.

[0062] When describing the embodiments of this specification, if it is determined that a specific description of a known related art may obscure the key points of the embodiments included in this specification, its detailed description will be omitted. In addition, it should be understood that the drawings are only used to facilitate the understanding of the embodiments disclosed in this specification, the technical ideas included in this specification are not limited by the drawings, and all variations, equivalent embodiments and even alternative embodiments of the embodiments disclosed in the specification are included in the ideas and technical scope of the present invention.

[0063] Terms such as first, second, etc. can be used to describe various elements, but the elements are not limited by the above terms. The above terms are used only for the purpose of distinguishing one element from other elements.

[0064] When a certain element is described as being "connected" or "contacting" another element, it should be understood that it may be directly connected or indirectly connected to the other element, or there may be other elements in between. On the contrary, when a certain element is described as being "directly connected" or "directly contacting" another element, it should be understood that there are no other elements in between.

[0065] An expression in the singular includes an expression in the plural unless it is clearly indicated differently in the context.

[0066] In this specification, terms such as "include" or "have" are intended to indicate the presence of implementation features, numbers, steps, operations, parts, elements, or combinations thereof described in the specification, but are not to be understood as excluding the presence or other possibilities of one or more other features, numbers, steps, operations, parts, elements, or combinations thereof in advance.

[0067] The controller may include a communication device for communicating with other control units or sensors to control the functions it is responsible for, a memory for storing an operating system, logic commands and input / output information, and one or more processors for performing judgments, calculations and decisions required to control the functions it is responsible for.

[0068] Hereinafter, an interior lighting system according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

[0069] like Figure 1As shown, the in-vehicle lighting system based on the present invention includes: a lighting unit 100, which includes a plurality of light sources 110 whose illumination areas are set to be different, and each light source 110 is configured to be able to adjust the brightness and color temperature of the light to achieve a dimming function; an information collection unit 200, which confirms the vehicle status information and the occupant information, and the occupant information includes the position of the occupant in the vehicle and the posture of the occupant; and a control unit 300, which controls the lighting unit 100 to adjust the brightness of the light so as to emit light to the position of the occupant when the occupant information is input through the information collection unit 200, and adjusts the color temperature of the light emitted by the lighting unit 100 when the information based on the occupant's posture is input.

[0070] The present invention includes an illumination unit 100, an information collection unit 200, and a control unit 300. The control unit 300 can determine the brightness, color temperature, and illumination area of ​​light based on a pre-stored database according to the passenger information input through the information collection unit 200. The illumination unit 100 receives the command determined by the control unit 300, and emits light through the light source 110 to form an illumination area.

[0071] The lighting unit 100 according to the present invention can be set on the roof of the vehicle and equipped with a plurality of light sources 110. Such lighting units 100 can be set in plurality in the vehicle and configured to set an illumination area for each seat S. That is, a plurality of lighting units 100 can be provided to form an illumination area for each seat S, so that light can be provided by controlling the light source 110 according to the posture and state of the occupant sitting in each seat S. As an example, Figures 2 to 5 As shown, in the present invention, a first row central lighting unit 100a, a second row central lighting unit 100b, and an auxiliary lighting unit 100c are configured. Each lighting unit 100 is provided with a plurality of light sources 110, and can set light brightness, color temperature and illumination area differently according to each seat S to provide light.

[0072] In addition, the plurality of light sources 110 provided in the lighting unit 100 can be implemented by LEDs, and each light source 110 is configured to be able to adjust brightness and color temperature, and the irradiation area can be set differently from each other according to the installation position and installation angle of each light source 110. Thus, the lighting unit 100 can adjust the brightness and color temperature of light differently according to each seat S, so that the occupant can be provided with the most optimized light based on the posture and state of the occupant sitting in the seat S.

[0073] The information collection unit 200 confirms the occupant information, which includes the position and posture of the occupant in the vehicle. Such an information collection unit 200 can collect information through a plurality of sensors equipped in the vehicle, and the sensors can include a camera sensor a, a seat belt sensor b, a seat position sensor c, etc. In addition, the information collection unit 200 can be configured to collect not only the posture of the occupant, but also the state of the vehicle and the occupant information outside the vehicle.

[0074] In this way, the information collecting unit 200 checks the occupant information based on whether the occupant is seated, the position of the seat S, and the inclination of the seat S, and transmits the information to the control unit 300 .

[0075] The control unit 300 controls the lighting unit 100 to emit light to the occupant when the occupant information is inputted from the information collecting unit 200. That is, the control unit 300 controls the lighting unit 100 based on the occupant information inputted from the information collecting unit 200 so as to generate an illumination area on the seat S where the occupant is seated by each light source 110 of the lighting unit 100, and can provide light optimized for the current state of the occupant by adjusting the brightness and color temperature of the light.

[0076] As described above, the present invention provides light to passengers inside the vehicle, and adjusts the illumination area, brightness, and color temperature of the light according to the passenger's actions, status, and posture, thereby improving the passenger's convenience and making the interior lighting more advanced.

[0077] The present invention will be described in detail below. The information collecting unit 200 can collect information based on whether an occupant is seated, the position of the seat S, and the tilt angle of the seat S.

[0078] In this way, the information collecting unit 200 can receive passenger information through the camera sensor a, seat belt sensor b, and seat position sensor c equipped in the vehicle. The passenger information can include whether a passenger is seated, the position of the seat S, and the tilt angle of the seat S.

[0079] That is, the position, brightness, and color temperature of the illumination area of ​​the lighting unit 100 can be determined according to the position and posture of the occupant. The information collecting unit 200 detects the seat S where the occupant is seated through various sensors, and provides information based on the position and tilt angle of the seat S to the control unit 300.

[0080] When the information that the position of the seat S where the occupant is seated is adjusted forward and backward is inputted through the information collecting unit 200 , the control unit 300 emits light from the light source 110 of the illumination unit 100 having an illumination area corresponding to the position of the moved seat S.

[0081] That is, the control unit 300 controls the lighting unit 100 to form an illumination area on the seat S, after the position of the seat S where the occupant is seated and the seat S moved forward and backward according to the occupant's request is input through the information collection unit 200. In order to control the lighting unit 100 according to the position of the seat S, the control unit 300 transmits a control command to each light source 110 of the lighting unit 100 based on a pre-stored database, and the lighting unit 100 receives the control command and emits light by turning on each light source 110. At this time, the control unit 300 can increase the color temperature so that the light emitted from each light source 110 of the lighting unit 100 is emitted in a cool color, thereby ensuring visibility.

[0082] As an example based on this, Figure 6 As shown, when the seat S on which the occupant is seated moves forward, the frontmost light source 110 of the lighting unit 100 configured to generate an irradiation area for the seat S is lit, thereby emitting light to the seat S moving forward to generate an irradiation area.

[0083] In addition, if Figure 7 As shown, when the seat S on which the occupant is seated moves toward the center, the light source 110 arranged in the center of the lighting unit 100 for generating an irradiation area for the seat S is lit, thereby emitting light to the seat S moving toward the center to generate an irradiation area.

[0084] In addition, if Figure 8 As shown, when the seat S on which the occupant is seated moves rearward, the light source 110 of the lighting unit 100 configured to generate an irradiation area for the seat S is lit, thereby emitting light to the seat S moving rearward to generate an irradiation area.

[0085] The above content is only based on one embodiment of the present invention, in which three light sources 110 are provided in the lighting unit 100 . However, the number of the light sources 110 and the irradiation areas of the light sources 110 can be set differently according to the movement range of the seat S.

[0086] On the other hand, the control unit 300 pre-stores the color temperature of each light source 110 based on the tilt angle range of the seat S, and when the tilt angle of the seat S is input through the information collecting unit 200, it can control the lighting unit 100 to emit light of a color temperature corresponding to the tilt angle of the seat S.

[0087] That is, the control unit 300 receives information about the seat S on which the occupant is seated and the seat S whose inclination is changed according to the occupant's request through the information collecting unit 200, and controls the lighting unit 100 to adjust the color temperature of the light emitted to the seat S. In order to control the lighting unit 100 according to the inclination, that is, the inclination angle, of the seat back, the control unit 300 transmits a control command to the lighting unit 100 based on a pre-stored database, and the lighting unit 100 receives the control command to adjust the color temperature of the light emitted from each light source 110.

[0088] Specifically, the control unit 300 controls the lighting unit 100 to reduce the color temperature and emit warm light when the reclining angle of the seat S increases, and to increase the color temperature and emit cool light when the reclining angle decreases.

[0089] If the inclination angle of the seat S increases, it means that the occupant's posture changes to reclining, and as a result, the control unit 300 controls the lighting unit 100 to reduce the color temperature. Fig. 9 As shown in FIG. 1 , when the reclining angle of the seat S is 120° or more, the control unit 300 causes the light source 110 of the lighting unit 100 to emit warm light of 3500K or less. Thus, when the occupant changes his posture to reclining, the warm light emitted by the lighting unit 100 can prevent glare, and provide light optimized for the state and purpose of the occupant who changes to reclining, thereby providing a sense of calmness to the occupant.

[0090] If the inclination angle of the seat S decreases, it means that the occupant's posture has changed to sitting or standing, and the control unit 300 can control the lighting unit 100 to increase the color temperature. Fig.10 As shown, when the inclination angle of the seat S is less than 104°, the control unit 300 can make the light source 110 of the lighting unit 100 emit cold light of 5500 K or more. Thus, when the occupant changes his posture to sitting, the cold light emitted by the lighting unit 100 can ensure a field of view for performing specific actions in the sitting posture.

[0091] Furthermore, when the tilt angle of the seat S is inputted through the information collecting unit 200 , the control unit 300 controls the lighting unit 100 to gradually reduce the brightness of light when the tilt angle of the seat S increases, and to gradually increase the brightness of light when the tilt angle of the seat S decreases.

[0092] As described above, when the occupant's posture changes to the reclining posture as the inclination angle of the seat S increases, the control unit 300 reduces the brightness of the light through the control of the lighting unit 100, thereby preventing the occupant from being glared. That is, in the reclining posture of the occupant, the occupant's eyes may be glared as the field of vision faces upward, and since the occupant may fall asleep in the reclining posture, the brightness of the light is reduced.

[0093] In addition, when the occupant's posture changes to a sitting posture as the reclining angle of the seat S decreases, the control unit 300 increases the brightness of the light through the control of the lighting unit 100, thereby ensuring the occupant's field of vision. That is, since the occupant can perform specific actions in the sitting posture, the brightness of the light irradiated by the lighting unit 100 is increased to ensure the occupant's field of vision.

[0094] Such color temperature and brightness based on the tilt angle can be automatically determined by the control of the control unit 300, and when the occupant pre-sets the action of the lighting unit 100 or directly inputs a command, the color temperature and brightness of the light are controlled with the occupant's command as the first priority to control the lighting unit 100.

[0095] On the other hand, when the seat S is arranged to be rotatable, the partial lighting unit 100 may further include a rotating light source 110 a having an illumination area for the rotating seat S.

[0096] That is, when the seat S rotates, the position of the occupant changes as the seat S rotates 180°. In addition, when the seat S rotates, not only the position of the occupant but also the direction toward the front based on the occupant changes, so it is necessary to set a lighting area that matches this. Therefore, a part of the lighting units 100 is further provided with a rotating light source 110a having an illumination area for the rotating seat S, so that the occupant can be included in the illumination area even if the seat S rotates.

[0097] Specifically, the lighting unit 100 is disposed in plural, and the lighting unit 100 having an illumination area for a part of the rear seats S except for the frontmost seat S can include the rotating light source 110 a.

[0098] In the present invention, a plurality of lighting units 100 are arranged to correspond to the respective seats S, and the lighting units 100 except for the frontmost seat S can be equipped with the rotating light source 110 a .

[0099] As an example, Fig.11 As shown in FIG. 1 , when the front seat S rotates, the occupant sitting in the front seat S will be out of the illumination area of ​​the illumination unit 100 corresponding to the front seat S. Therefore, the illumination unit 100 corresponding to the rear seat S further includes a rotating light source 110a, so that the occupant sitting in the rotating front seat S and the occupant sitting in the rear seat S can be included in the illumination area of ​​the light emitted by the illumination unit 100. That is, Figure 4 As shown, the rotating light source 110 a can be provided in the second row center lighting unit 100 b , and the rotating light source 110 a can provide light to the occupant seated in the rotating seat.

[0100] Thus, the information collecting unit 200 collects information based on the rotation angle of the seat S. When the control unit 300 receives information that the seat S on which the occupant is seated is rotated and the position is adjusted, the light source 110 having the irradiation area corresponding to the rotated seat S emits light.

[0101] That is, the control unit 300 receives information about the seat S where the occupant is seated and the angle at which the seat S where the occupant is seated rotated through the information collection unit 200, and controls the lighting unit 100 to generate an irradiation area for the rotating seat S. The control unit 300 can transmit a control command to each light source 110 of the lighting unit 100 based on the database for controlling the lighting unit 100 according to the rotation position of the seat S, and each lighting unit 100 receives the control command and emits light by turning on the rotation light source 110a. At this time, the control unit 300 can increase the color temperature of the light emitted from each light source 110 of the lighting unit 100 to emit cool light.

[0102] On the other hand, the information collecting unit 200 collects information based on obstacles when the seat S rotates. When the control unit 300 receives information that there is a seat S causing an obstacle through the information collecting unit 200, it controls the lighting unit 100 to emit light so that the irradiation area includes the seat S causing the obstacle.

[0103] When the obstacle factor when the seat rotates means that there is an obstacle in the rotation area of ​​the seat S and the seat S cannot rotate, the information collection unit 200 detects the obstacle through the camera sensor a, or can determine whether there is an obstacle to the rotation movement by the amount of current applied to the motor when the seat S rotates.

[0104] When the control unit 300 receives information that a seat S that has caused an obstacle is present through the information collection unit 200, the control unit 300 controls the lighting unit 100 to emit light toward the seat S that has caused the obstacle. At this time, the control unit 300 turns off or sequentially turns on the light sources 110 of the lighting unit 100 corresponding to the seat S that has caused the obstacle, so that the occupant can recognize the seat S that has caused the obstacle. In this way, when the light of the lighting unit 100 is emitted to the seat S that has caused the obstacle to generate an illuminated area, the occupant in the vehicle can recognize this and eliminate the obstacle that hinders the rotation of the seat S, so that the rotation of the seat S can be normalized.

[0105] On the other hand, the control unit 300 can be configured to sequentially light up the light sources 110 of the lighting unit 100 in the direction of rotation when the seat S rotates.

[0106] As described above, when the seat S rotates, the light sources 110 of the lighting unit 100 corresponding to the rotating seat S are sequentially lit in the direction of the rotation of the seat S, so that the passengers in the vehicle can recognize the rotation of the seat S and can form a sense of luxury based on the rotation of the seat S. As an example, when the seat S rotates in the clockwise direction, the light sources 110 of the lighting unit 100 corresponding to the seat S are sequentially lit from the front to the rear, and when the seat S rotates in the counterclockwise direction, the light sources 110 of the lighting unit 100 corresponding to the seat S are sequentially lit from the rear to the front.

[0107] Thus, the occupant can recognize the turning action of the seat S, and the control unit 300 can control each lighting unit 100 based on the position of the seat S when the seat S has completed turning.

[0108] On the other hand, in the present invention, it is also possible to perform light emission control of the lighting unit 100 inside the vehicle according to the position of the occupant outside the vehicle.

[0109] In detail, Fig.12 As shown, the information collecting unit 200 also confirms the position information of the occupant outside the vehicle, and when the control unit 300 is input with information that the occupant is detected within a certain distance from the vehicle through the information collecting unit 200, it can realize ambient lighting through a part of the multiple light sources 110 constituting the lighting unit 100.

[0110] The information collection unit 200 can obtain the distance information between the vehicle and the occupant through the mobile phone or smart key d held by the occupant. When the control unit 300 confirms that the distance between the occupant and the vehicle input through the information collection unit 200 is within a certain distance stored in advance, the multiple light sources 110 constituting the lighting unit 100 are turned on. Here, the certain distance between the vehicle and the occupant can be set as a distance that the occupant can recognize from the outside of the vehicle when the light source 110 of the lighting unit 100 is turned on. In addition, the lighting unit 100 can also be equipped with a light source 110 that can realize ambient lighting, or a part of the light source 110 can be lit in an ambient lighting manner.

[0111] Thus, the passenger can confirm the lighting of the lighting unit 100 from the outside of the vehicle and can easily find the position of the vehicle, thereby improving the usability.

[0112] In addition, the information collecting unit 200 also confirms the opening and closing information of the door e, and when the control unit 300 receives the information that the door e is opened through the information collecting unit 200, each light source 110 of the lighting unit 100 lights up in a preset welcome mode.

[0113] On the other hand, the information collecting unit 200 can confirm the opening and closing of the door e through the sensor provided on the door e.

[0114] The control unit 300 executes the welcome mode when the information that the door e is open is inputted through the information collecting unit 200. Here, the welcome mode means that each light source 110 of the lighting unit 100 operates in a preset lighting mode and can be changed according to the request of the occupant.

[0115] In addition, the control unit 300 can be configured to execute the welcome mode when the vehicle is turned off. When the door e is opened in the closed and started state, the light source 110 of each lighting unit 100 is lit in the welcome mode, which can provide the occupants with a sense of luxury in the vehicle.

[0116] On the other hand, in the present invention, the illumination area illuminated by the illumination unit 100 can be adjusted according to the eye position of the occupant.

[0117] Specifically, the information collecting unit 200 further checks the eye position information of the occupant sitting in the seat S, and the control unit 300 can control each light source 110 so that the illumination area of ​​the lighting unit 100 does not include the eyes of the occupant.

[0118] The information collecting unit 200 can detect the eye position of the occupant using a camera sensor a installed in the vehicle.

[0119] Here, the control unit 300 receives the eye position information of the occupant through the information collection unit 200, and controls the lighting unit 100 so that the eyes of the occupant are not included in the illumination area of ​​the lighting unit 100. That is, if the eyes of the occupant are included in the illumination area of ​​the lighting unit 100, glare will occur, and the driving safety of the vehicle may be reduced.

[0120] Therefore, the control unit 300 controls each lighting unit 100 according to the eye position of the occupant, and adjusts the illumination area generated by the light source 110 to not include the eyes of the occupant. That is, even if the eye position of the occupant changes as the seat S moves or the seat tilts, the illumination area of ​​each lighting unit 100 can be made to not include the eyes of the occupant, so as to avoid glare to the occupant.

[0121] On the other hand, when the control unit 300 receives eye position information of a passenger sitting in the driver's seat in the seat S and confirms the driver's drowsiness based on the driver's eye position information, it can control each light source 110 so that the illumination area of ​​the lighting unit 100 includes the passenger's eyes.

[0122] Here, when the control unit 300 confirms that the driver is in a sleepy state, the control unit 300 increases the color temperature through the control of the lighting unit 100 so that cool light can be emitted.

[0123] The information collecting unit 200 detects the eye position of the occupant sitting in the driver's seat, and obtains the driver's pupil size and eye closure amount based on the driver's eye position information, thereby confirming whether the driver is in a drowsy state.

[0124] When the control unit 300 confirms that the driver is in a sleepy state through the information collection unit 200, the control unit 300 makes the illumination area of ​​the lighting unit 100 include the eyes of the occupant. At the same time, the control unit 300 increases the color temperature of the light emitted from the light source 110 of the lighting unit 100 so as to emit cool light, and can make not only the lighting unit 100 corresponding to the driver's seat but also other lighting units 100 emit light.

[0125] This allows the driver to wake up from a sleepy state and look forward, thereby ensuring driving safety.

[0126] In addition, the information collecting unit 200 also confirms the headrest f information of the seat S. When the control unit 300 receives the information of the position change of the headrest f, it confirms the eye position information again and controls the lighting unit 100 to adjust the illumination area of ​​the lighting unit 100 so as not to include the eyes of the occupant.

[0127] The information collecting unit 200 can obtain the position of the headrest f by the driving amount and driving direction of the motor that changes the position of the headrest f.

[0128] Here, when the information on the position change of the headrest f is inputted through the information collecting unit 200 , the control unit 300 detects the change in the eye position of the occupant and receives the eye position information of the occupant again.

[0129] Thereafter, when the eyes of the occupant due to the change in the headrest f are included in the illumination area of ​​the illumination unit 100 , the control unit 300 controls the illumination unit 100 so that the illumination area of ​​the illumination unit 100 does not include the eyes of the occupant, thereby preventing glare to the occupant.

[0130] On the other hand, the information collecting unit 200 also checks the information of the leg rest g of the seat S. When the leg rest g of the seat S is unfolded, the control unit 300 controls the lighting unit 100 to reduce the color temperature, emit warm light, and reduce the brightness.

[0131] The information collecting unit 200 can obtain the position of the leg rest g through the driving amount and driving direction of the motor that changes the position of the leg rest g.

[0132] Here, when the control unit 300 confirms through the information collection unit 200 that the leg rest g has been unfolded, it indicates that the occupant's posture has changed to a comfortable lying posture. Therefore, the color temperature of the light emitted by the light source 110 of the lighting unit 100 is reduced, and warm light is emitted to reduce the brightness of the light to prevent glare to the occupant.

[0133] Based on the above-mentioned in-vehicle lighting system of the present invention, Figure 13 to Figure 14 The control is performed in the order of S1 to S23 in the flowchart shown.

[0134] The in-vehicle lighting system implemented with the structure as described above can provide light to the passengers from inside the vehicle, and adjust the illumination area, brightness, and color temperature of the light according to the actions, status, and posture of the passengers, thereby improving the convenience of the passengers and making the in-vehicle lighting more advanced.

[0135] Although the present invention has been illustrated and described with respect to specific embodiments, it will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the technical concept of the present invention as provided by the claims.

Claims

1. A vehicle interior lighting system, characterized in that: include: The lighting unit includes a plurality of light sources whose illumination areas are set to be different, and each light source can adjust the brightness and color temperature of light to achieve a dimming function; an information collection unit configured to confirm vehicle status information and occupant information, wherein the occupant information includes a position and a posture of an occupant in the vehicle; as well as The control unit is configured to control the lighting unit to adjust the brightness of light so as to emit light to the position of the occupant when the occupant information is input through the information collection unit, and to adjust the color temperature of the light emitted by the lighting unit when the information based on the posture of the occupant is input.

2. The vehicle interior lighting system according to claim 1, characterized in that: A plurality of lighting units are provided inside the vehicle, and the plurality of lighting units are arranged so that illumination areas are set for the respective seats.

3. The vehicle interior lighting system according to claim 1, characterized in that: The information collecting unit collects information based on whether or not an occupant is seated, the position of the seat, and the reclining angle of the seat.

4. The vehicle interior lighting system according to claim 3, characterized in that: When the information that the seat on which the occupant is seated has been adjusted forward and backward is inputted through the information collecting unit, the control unit causes the light source of the illumination unit having an illumination area corresponding to the position of the moved seat to emit light.

5. The vehicle interior lighting system according to claim 3, characterized in that: The control unit is configured to store the color temperatures of the light sources based on the seat tilt angle range in advance, and when the seat tilt angle is input through the information collecting unit, control the lighting unit to emit light of a color temperature corresponding to the seat tilt angle.

6. The vehicle interior lighting system according to claim 5, characterized in that: The control unit controls the lighting unit to reduce the color temperature to emit warm light when the tilt angle of the seat increases, and to increase the color temperature to emit cool light when the tilt angle decreases.

7. The vehicle interior lighting system according to claim 3, characterized in that: When the seat tilt angle is input through the information collecting unit, the control unit controls the lighting unit to gradually reduce the brightness of light when the seat tilt angle increases, and to gradually increase the brightness of light when the seat tilt angle decreases.

8. The vehicle interior lighting system according to claim 3, characterized in that: When the seat is arranged to be rotatable, a part of the lighting unit further includes a rotating light source having an illumination area for the rotating seat.

9. The vehicle interior lighting system according to claim 8, characterized in that: The information collecting unit collects information based on the rotation angle of the seat. When the information that the seat on which the occupant is seated is rotated and the position is adjusted is inputted through the information collecting unit, the control unit emits light using a light source having an irradiation area corresponding to the position of the rotated seat.

10. The vehicle interior lighting system according to claim 8, characterized in that: The lighting unit is configured as multiple, The lighting unit having an illumination area for a portion of the rear seats excluding the frontmost seats includes a rotating light source.

11. The vehicle interior lighting system according to claim 8, characterized in that: The information collection unit collects information based on obstacle factors when the seat is turned. When the information that a seat that has caused an obstacle is present is inputted through the information collecting unit, the control unit controls the lighting unit to emit light so that the seat that has caused the obstacle is included in the irradiation area.

12. The vehicle interior lighting system according to claim 8, characterized in that: The control unit is configured to sequentially light up the light sources of the illumination unit in the direction of rotation when the seat rotates.

13. The vehicle interior lighting system according to claim 1, characterized in that: The information collection unit also confirms the location information of passengers outside the vehicle. When the information that an occupant is detected within a certain distance from the vehicle is inputted through the information collecting unit, the control unit realizes the ambient lighting through a part of the plurality of light sources constituting the lighting unit.

14. The vehicle interior lighting system according to claim 1, characterized in that: The information collection department also confirms the door opening and closing information. When the information that the door is open is inputted through the information collecting unit, the control unit lights up the light sources of the lighting unit in a preset welcome pattern.

15. The vehicle interior lighting system according to claim 1, characterized in that: The information collection unit also checks the eye position information of the seated occupant. The control unit controls each light source so that the eyes of the occupant are not included in the illumination area of ​​the illumination unit.

16. The vehicle interior lighting system according to claim 15, characterized in that: The control unit receives eye position information of a driver seated in a seat, and when the driver's sleepiness is confirmed based on the driver's eye position information, controls each light source so that the illumination area of ​​the lighting unit includes the eyes of the driver.

17. The vehicle interior lighting system according to claim 16, characterized in that: When the control unit confirms that the driver is in a sleepy state, the control unit increases the color temperature through the control of the lighting unit to emit cool light.

18. The vehicle interior lighting system according to claim 15, characterized in that: The information collection department also confirms the headrest information of the seat. When the information that the position of the headrest has been changed is input, the control unit checks the eye position information again and then controls the lighting unit to adjust the illumination area of ​​the lighting unit so that the eyes of the occupant are not included.

19. The vehicle interior lighting system according to claim 1, characterized in that: The information collection department also confirms the leg support information of the seat. When the leg rest of the seat is unfolded, the control unit reduces the color temperature through the control of the lighting unit to emit warm light and adjusts it to reduce the brightness.

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