JP2018199391A - Vehicular illumination device - Google Patents

Abstract

To provide a vehicular illumination device that can perform an original illumination.SOLUTION: A vehicular illumination device 100 has a light emitter 1 that is provided in the cabin of a vehicle and can adjust a light color, occupant information acquiring means 4 that acquires occupant information on an occupant, and light emitter control means 10 that controls emission from the light emitter 1. The light emitter control means 10 has light color storage means 20 that stores a plurality of light colors associated with the occupant information, light color determination means 30 that determines a light color on the basis of the occupant information acquired by the occupant information acquiring means 4, from among the plurality of light colors stored in the light color storage means 20, and emission signal supply means 40 that supplies an emission signal including information on the light color determined by the light color determination means 30, to the light emitter 1.SELECTED DRAWING: Figure 2

Description

  The technology disclosed by this specification is related with the illuminating device for vehicles.

  Conventionally, lighting and illumination in vehicles such as automobiles are not limited to simply turning on and off, but it has been studied to control the brightness and color of lighting and the like (see Patent Documents 1 and 2). Patent Document 1 describes a vehicle interior lighting system that can keep the brightness of the interior of the vehicle on the rear seat side constant even when the brightness outside the vehicle changes. Further, Patent Document 2 provides a lighting color and brightness according to the occupant's biological rhythm by automatically controlling the color temperature and brightness of the lighting in the passenger compartment based on the time of day. There is described a vehicle interior lighting device capable of adjusting the lighting according to the mood and preference.

JP 2010-76519 A JP2015-221655A

  For example, in the vehicle interior lighting described in Patent Document 1, the brightness of the rear seat is detected, the light output of the lighting device is adjusted so that the brightness of the rear seat is within a certain range, and In the vehicle interior illumination device described in Patent Document 2, the color temperature and brightness of the illumination in the vehicle interior are automatically controlled according to the time of the day. By detecting the brightness of the seat in this way and adjusting the lighting, or by controlling the lighting according to the time zone, there may be a preferable lighting change mode, but the vehicle interior is limited. Additional lighting aspects in space are also desired.

  The technology disclosed in the present specification has been made in view of the above points, and an object thereof is to provide a vehicle illumination device capable of producing novel illumination. Another object of the present invention is to provide a vehicle lighting device capable of producing a novel lighting change mode.

  As means for solving the above problems, the technology disclosed in the present specification includes a light-emitting unit that is provided in a vehicle interior and that can adjust light color, occupant information acquisition means that acquires occupant information about the occupant, and A light-emitting unit control unit that controls light emission in the light-emitting unit, and the light-emitting unit control unit stores a plurality of light colors associated with occupant information, and stores the light color storage unit in the light color storage unit A light color determining means for determining the light color based on the occupant information acquired by the occupant information acquiring means from among the plurality of light colors, and the light color determining means for the light emitting unit. And a light emission signal supply means for supplying a light emission signal including light color information.

  According to such a technique, it becomes possible to supply the illumination light of the light color according to passenger | crew information in the light emission part, and a passenger | crew can grasp | ascertain own condition according to light color. Of the several elements that determine the light emission mode in the light emitting section, the light color can suitably represent the situation of the person for each type. It becomes possible to grasp. Here, the occupant information on the occupant can suitably illustrate the occupant's emotions, but in addition, for example, acquiring information such as the occupant's body temperature, heart rate, myoelectricity, age, gender, clothes, hairstyle, Based on this, the light color can be determined.

In the above technique, the occupant information acquisition means can acquire the occupant's emotion as the occupant information based on the voice uttered by the occupant.
According to such a technique, it is possible to appropriately acquire the occupant's emotions, and it is possible to appropriately adjust the light color based on the acquired occupant emotions (occupant information).

In the above technique, the light emitting unit control means supplies the light emission signal including information on the light color determined by the light color determination means, and then changes the state of the occupant to a predetermined state. Light color changing means for changing the color with time can be provided.
The light color among several elements that define the light emission mode in the light emitting unit has a different impression given to the occupant due to the difference, and can change the occupant's situation (for example, emotion). Therefore, in the above technique, after supplying the light emission signal, the light color is changed with time in order to change the occupant status to a predetermined state, for example, leading the occupant status to a state suitable for driving. Is possible. That is, for example, when it is determined that the psychological state is negative in the initial stage, the light color is changed so that the light color is changed to, for example, a positive psychological state after light emission is performed according to the light color corresponding to the psychological state. Can be performed.

The above technique may further include external environment information acquisition means for acquiring external environment information related to the external environment, and the light color changing means may change the light color while referring to the external environment information.
In this case, it is possible to change the light color according to the situation in which the vehicle is placed in consideration of the situation of the outside environment, and it is possible to increase the variation of the illumination mode.

The above technology may further include vehicle information acquisition means for acquiring vehicle information relating to a vehicle, and the light color changing means may change the light color while referring to the vehicle information.
In this case, it becomes possible to change a light color according to the state of a vehicle, and it becomes possible to increase the variation of an illumination mode.

In the above technique, occupant identification information acquisition means for acquiring occupant identification information for individually identifying the occupant, and occupant information relating to the occupant in a state where the light color is changed by the light color change means after the light color change And a light color change occupant information acquisition unit that acquires the occupant information, and the light emitting unit control unit stores the light color change occupant information in association with the occupant identification information together with a light color change mode. A history storage unit may be further provided, and the light color changing unit may change the light color while referring to contents stored in the history storage unit.
In this case, by referring to the light color change history for each occupant, it is possible to realize a light color change suitable for the occupant. Since vehicles such as automobiles often have different occupants, it is preferable to change the light color change mode for each occupant in order to increase the variation of the lighting mode. In the case of the above technology, the transition of the situation (for example, emotion) associated with the change in light color is stored for each occupant, and the light color is changed while referring to the stored contents. The light color change suitable for the individuality can be realized.

In the above technique, the history storage means associates the degree of arrival of the occupant information after light color change up to the predetermined state with the occupant identification information as a result of changing the light color by the light color change means. The light color changing means may determine the light color changing mode based on the degree of arrival stored in the history storage means.
In this case, since the light color change mode is determined based on the degree of arrival stored in the history storage means, it is possible to approach a predetermined state each time the light color change is repeated.

  According to the technology disclosed in this specification, it is possible to provide a vehicle lighting device capable of producing novel illumination. Further, it is possible to provide a vehicle lighting device that can produce a novel lighting change mode.

The figure which shows the aspect by which the illuminating device which concerns on this invention was distribute | arranged inside the vehicle (automobile) as one Embodiment of a vehicle. The block diagram which shows the structural example of the illuminating device for vehicles which concerns on this invention. FIG. 3 is an explanatory diagram illustrating an example of storage contents of a storage unit included in a light emitting unit control unit in the vehicle lighting device of FIG. 2. FIG. 3 is an explanatory diagram illustrating an example of storage contents of a storage unit included in a light emitting unit control unit in the vehicle lighting device of FIG. 2. FIG. 3 is an explanatory diagram illustrating an example of storage contents of a storage unit included in a light emitting unit control unit in the vehicle lighting device of FIG. 2. FIG. 3 is an explanatory diagram illustrating an example of storage contents of a storage unit included in a light emitting unit control unit in the vehicle lighting device of FIG. 2. FIG. 3 is an explanatory diagram illustrating an example of storage contents of a storage unit included in a light emitting unit control unit in the vehicle lighting device of FIG. 2. The flowchart which shows an example of the light emission control flow which the light emission part control means in the vehicle illuminating device of FIG. 2 performs. The flowchart which shows an example of the light color change flow which the light emission part control means in the vehicle illuminating device of FIG. 2 performs. The flowchart which shows another example of the light color change flow which the light emission part control means in the vehicle illuminating device of FIG. 2 performs. The flowchart which shows another example of the light color change flow which the light emission part control means in the vehicle illuminating device of FIG. 2 performs. The flowchart which shows another example of the light color change flow which the light emission part control means in the vehicle illuminating device of FIG. 2 performs.

  An embodiment of a vehicle having a configuration according to the present invention will be described with reference to FIGS. The vehicle illumination device 100 according to the present embodiment is provided in a vehicle (automobile) room as a vehicle as shown in FIG. 1 and adjusts at least the light color, illuminance, color temperature, contrast, blinking mode, and irradiation range of the light emission. A possible light emitting unit 1 (1a, 1b, 1c, 1d, 1e, 1f...), An external environment information acquisition means 2 that is disposed in the vehicle interior and acquires external environment information related to the external environment of the vehicle, and a vehicle Vehicle information acquisition means 3 for acquiring vehicle information related to (vehicle) and occupant information acquisition means 4 for acquiring occupant information related to the occupant are provided. In addition, the light emission part 1 shall be equipped with the light guide which radiates | emits the light which the emitted light emits from the surrounding surface. Furthermore, it is possible to provide manual adjustment means for adjusting the light color, illuminance, color temperature, contrast, blinking mode, and irradiation range of the emitted light by the operation of the passenger.

  The light-emitting unit 1 is a light-emitting unit including a light source that can adjust the light color, illuminance, color temperature, contrast, blinking mode, and irradiation range of each light-emitting unit, and is used for vehicle interior lighting, illumination, and the like. It has been. For example, as shown in FIG. 1, the vehicle interior is provided with lighting such as a room lamp 1a, a foot lamp 1b, a door lamp 1c, etc., as well as a ceiling part 1d, a dashboard part 1e, a door part 1f, a steering part, a seat part. For example, illumination for illumination may be provided. The light emitting unit 1 can be used as a light emitting unit for these various types of illumination, and the number of the light emitting units 1 in the present lighting device is not particularly limited, and can be 1 or 2 or more.

  The light color of light emission adjusted in the light emitting unit 1 is the type of light color, and can be adjusted from among the types of light classified into various colors such as red, blue, green, yellow, etc. It can be adjusted from among the types of light classified for each wavelength within the range of visible light (for example, wavelengths of 380 nm to 750 nm). Specifically, a light color belonging to a wavelength of 380 nm to 450 nm (purple), a light color belonging to a wavelength of 450 nm to 495 nm (blue), a light color belonging to a wavelength of 490 nm to 570 nm (green), a light color belonging to a wavelength of 570 nm to 590 nm ( Yellow), a light color belonging to a wavelength of 590 nm to 620 nm (orange), and a light color belonging to a wavelength of 620 nm to 750 nm (red).

The illuminance of light emission adjusted in the light emitting unit 1 is a physical quantity representing the brightness of light that illuminates the surface of an object, and is expressed in lux. For example, it is adjusted stepwise for each physical quantity in a range from relatively bright high illuminance (high lux) to dark low illuminance (low lux).
The color temperature of light emission adjusted in the light emitting unit 1 is a scale for expressing the color of light emitted from the light source by a quantitative numerical value, and is expressed by K (Kelvin) of thermodynamic temperature. For example, the light bulb color is adjusted from a warm color, warm white, white, day white, daylight color, and the like.
The contrast adjusted in the light emitting unit 1 is a light / dark ratio in illumination, and is adjusted stepwise for each numerical value, for example, from a high contrast with relatively bright and dark to a low contrast with blurred light and dark.
The blinking mode adjusted in the light emitting unit 1 refers to the number of times of light emission per unit time (the number of blinks), and is adjusted step by step from the high-speed flashing to the low-speed flashing.
In addition, the irradiation range adjusted in the light emitting unit 1 refers to a range in which light is irradiated by the lighting device, from a narrow area such as a spotlight to a wide area in which light spreads over a wide range. It is adjusted in steps for each numerical value of area.

  The interior lighting of the passenger compartment is designed to improve the convenience and comfort of passengers. For example, not only the direct illumination from the light emitting unit 1 but also indirect illumination reflected on the interior material or the like can be used. In addition, a light guide can be provided in each part of the vehicle interior to allow the light emitted from the light-emitting unit 1 to enter and propagate and to emit light from the peripheral surface to the outside. For example, in FIG. 1, in the illumination of the foot lamp, the ceiling part, and the dashboard part and the door part, a light guide that guides the light of each light emitting part 1 and emits it from the surrounding surface can be provided. . As the light guide, light guides having various shapes such as a light guide rod formed in a rod shape using a resin material and a light guide plate formed in a plate shape can be used. Since light emitted from the light emitting unit 1 is incident on one end face of such a light guide and can be illuminated by light emitted from the peripheral surface of the light guide, it is possible to configure illumination of any shape. It becomes possible. Furthermore, it is good also as indirect illumination which reflects the light radiated | emitted from a light guide to an interior member.

  As the light emitting unit 1, for example, a light color, illuminance, color temperature, contrast, blinking mode, LED capable of adjusting the irradiation range within a certain range, or the like can be used. In addition, the light emitting unit 1 can also be configured by including a plurality of light sources each having a different emission color and its driving means. As a specific example, each light source may be an LED element whose emission colors are red, green, and blue, respectively. When the light emitting unit 1 includes a plurality of light sources having different emission colors, the light color can be changed depending on the mixing ratio of the light sources.

  In the light emitting unit 1, for example, the light source driving unit is based on a light emission control signal sent from the light emitting unit control unit 10 to instruct the light source of the light color, illuminance, color temperature, contrast, blinking mode, and irradiation range of the light emission. Thus, each light source can be configured to be driven. The driving method is not particularly limited, and for example, a PWM (pulse width modulation) method can be adopted. When the PWM signal is used, the driving power of each light source can be controlled by the frequency and the duty ratio. The drive means has a function of correcting the power supplied to each light source so that a desired light color, illuminance, color temperature, contrast, blinking mode, and irradiation range can be obtained depending on the type, structure, characteristics, etc. of the light source used. It is possible to provide.

  The light emitting unit control means (light emitting unit control unit) 10 includes a peripheral circuit such as an input / output interface centered on a microcontroller (microcomputer) including a CPU, a memory (ROM, RAM, etc.), an input / output circuit, and the like. can do. The light emitting unit control means 10 of the vehicle lighting device 100 according to the present embodiment includes an illuminance determining means (illuminance determining part), a color temperature determining means, in addition to the light color determining means (light color determining part) 30 as shown in FIG. (Color temperature determination unit), contrast determination unit (contrast determination unit), blinking mode determination unit (flashing mode determination unit), irradiation range determination unit (irradiation range determination unit), and the like. These light color determining means 30, illuminance determining means, color temperature determining means, contrast determining means, blinking mode determining means, and irradiation range determining means are derived from the external environment information acquiring means 2, the vehicle information acquiring means 3, and the occupant information acquiring means 4. Based on the acquired external environment information, vehicle information, and occupant information, the light color, illuminance, color temperature, contrast, flashing mode, and irradiation range of the light emission unit 1 are determined.

  In particular, in the present embodiment, the light color determining unit 30 determines the light color based on the storage contents stored in advance in the light color storage unit 20. In this light color storage means (light color storage section constituted by a memory or the like) 20, for example, as shown in FIG. 3, the light color associated with the occupant information is stored, and the light color determination means 30 has acquired it. The light color is determined according to the occupant information. The occupant information in this case is information indicating the occupant's emotions: "red" for the emotion "anger", "blue" for "sadness", "green" for "calm", "joy" On the other hand, it is stored as “yellow”.

  The emotion which is one of such occupant information is analyzed and acquired from, for example, an emotion analysis device (occupant information acquisition unit) as the occupant information acquisition means 4 mounted on the vehicle. As the emotion analysis device, for example, a device equipped with ST technology manufactured by AGI Corporation can be adopted. In this case, a speaker is used as a means for emitting a sound from the vehicle side to the occupant, and the vehicle is a sound from the occupant side. A microphone is mounted as means for acquiring the emotion, and the emotion analyzer analyzes the emotion based on the voice of the occupant acquired by the microphone.

  And the light color determination means 30 determines the light color in the light emission part 1 based on the emotion information acquired by the passenger | crew information acquisition means 4 comprised with an emotion analyzer. For example, when the passenger's emotion information is acquired as “anger” from the passenger information acquisition unit 4, the light color determination unit 30 refers to the contents of the light color storage unit 20 shown in FIG. 3 and changes the light color to “red”. This is determined, generated as a light emission signal, and transmitted from the light emission signal supply means (light emission signal supply unit) 40 to the light emission unit 1. Similarly, when the passenger's emotion information is acquired as “sadness”, “calmness”, and “joy”, the light color determination means 30 refers to the contents of the light color storage means 20 shown in FIG. Blue, “green”, and “yellow” are determined, and light emission signals corresponding thereto are transmitted from the light emission signal supply means 40 to the light emitting unit 1.

  Further, the light emitting unit control means 10 supplies the light emitting signal including the light color information determined by the light color determining means 30 to the light emitting unit 1 and then changes the occupant's situation (ie, emotion) to a predetermined state. Therefore, a light color changing means (light color changing unit) 50 for changing the light color with time is provided. Here, the light color is changed within a predetermined time based on the time information from the time measuring means (counter) 60. For example, based on the information from the navigation system, the destination of the vehicle is reached. It is also possible to predict the arrival time and change the light color within the estimated arrival time.

  The light color changing unit 50 changes the light color based on the contents stored in the light color changing mode storage unit 80. The light color change mode storage unit 80 stores a change mode for each current light color (current light color) as shown in FIG. For example, a change mode of “orange → yellow → green” is stored for the current light color “red”, and a change mode of “light blue → green” is stored for the current light color “blue”. That is, when “red” is determined by the light color determination unit 30, the light color changing unit 50 transmits a light emission signal including “red” light color information from the light emission signal supply unit 40 to the light emitting unit 1. , Referring to the content stored in the light color change mode storage means 80, a signal for changing the light color from “orange to yellow to green” within a predetermined time (for example, 10 minutes) is generated, and this is sent to the light emitting unit 1 Send.

  Further, the light color changing unit 50 may change the light color with reference to the external environment information from the external environment information acquiring unit 2. Specifically, the light color change is performed based on the contents stored in the light color change mode storage unit 80. As shown in FIG. 5, the light color change mode storage unit 80 stores a change mode for each light color (current light color) and external environment information. For example, a change mode of “orange → yellow → light blue” is stored for the current light color “red” and the external environment information “morning”, and “orange → A change mode of “yellow” is stored, and a change mode of “orange → green” is stored for the current light color “red” and the external environment information “night”. In addition, a change mode of “light blue” is stored for the current light color “blue” and the outside environment information “morning”, and “light blue → yellow” for the current light color “blue” and the outside environment information “day” is stored. The change mode is stored, and the change mode of “light blue → green” is stored for the current light color “blue” and the external environment information “night”.

  That is, when “red” is determined by the light color determination unit 30, the light color changing unit 50 transmits a light emission signal including “red” light color information from the light emission signal supply unit 40 to the light emitting unit 1. When the acquired outside environment information is “morning”, the content stored in the light color change mode storage unit 80 is referred to and the light color “red” is changed to “orange” within a predetermined time (for example, 10 minutes). A signal to be changed to “→ yellow → green” is generated and transmitted to the light emitting unit 1. In this case, the external environment information acquisition means 2 is a clock (external environment information acquisition unit) or the like mounted on the vehicle. For example, the external environment information “morning” from 5 am to 10 am, and 10 am to afternoon The information is acquired with the external environment information “noon” at 6:00 and the external environment information “night” from 6:00 pm to 5:00 am.

  Further, the light color changing unit 50 may change the light color with reference to the vehicle information from the vehicle information obtaining unit 3. Specifically, the light color change is performed based on the contents stored in the light color change mode storage unit 80. As shown in FIG. 6, the light color change mode storage unit 80 stores a change mode for each light color (current light color) and vehicle information. For example, a change mode of “orange” is stored for the current light color “red” and the vehicle information “high speed”, and “orange → yellow” is changed for the current light color “red” and the vehicle information “medium speed”. A mode is stored, and a change mode of “orange → green” is stored for the current light color “red” and the vehicle information “low speed”. In addition, a change mode of “light blue” is stored for the current light color “blue” and the vehicle information “high speed”, and “light blue → yellow” is stored for the current light color “blue” and the vehicle information “medium speed”. The change mode is stored, and the change mode of “light blue → green” is stored for the current light color “blue” and the vehicle information “low speed”.

  That is, when “red” is determined by the light color determination unit 30, the light color changing unit 50 transmits a light emission signal including “red” light color information from the light emission signal supply unit 40 to the light emitting unit 1. When the vehicle information is “high speed”, the content stored in the light color change mode storage means 80 is referred to, and the light color of “red” is changed to “orange” within a predetermined time (for example, 10 minutes). A signal to be generated is generated and transmitted to the light emitting unit 1. The vehicle information acquisition means 3 in this case is a speedometer or the like (vehicle information acquisition unit) mounted on the vehicle. For example, the vehicle information “low speed” is 30 km / hour, and the vehicle information “low speed” is 30 km / hour. Information is acquired with vehicle information “medium speed” at 60 km / hour and vehicle information “high speed” at 60 km / hour to 100 km / hour.

Moreover, the light color changing means 50 has means for selecting a light color changing mode for each occupant. That is, when the passengers such as the drivers are different, different light color changes are possible.
Specifically, the vehicle obtains occupant information after light color change that acquires occupant information (here, emotion) relating to the occupant in a state where the light color has been changed by the light color change means 50 described above as occupant information after light color change. Means (here, the same as the occupant information acquisition means) 4 and occupant identification information acquisition means 5 for acquiring occupant identification information for individually identifying the occupant, The occupant information acquisition unit 4 after the light color change acquires again the emotion of the occupant after the light color change. The occupant identification information acquisition means (occupant identification information acquisition unit) 5 has, for example, a plurality of buttons arranged on the vehicle, registers individual occupants for each button, and the occupant gets into the vehicle. The passengers are identified by operating their buttons. The vehicle further includes a history storage means 70 for storing the emotion information after the light color change (occupant information after the light color change) in association with the occupant identification information (occupant) together with the light color change mode, and the light color change. The means 50 changes the light color while referring to the contents stored in the history storage means 70. As shown in FIG. 7, for example, as shown in FIG. 7, the history storage means 70 indicates the degree of arrival of the occupant information after the light color change up to a predetermined state as a result of changing the light color by the occupant identification information ( The light color change means 50 determines the light color change mode based on the degree of arrival stored in the history storage means 70.

The degree of arrival in the history storage means 70 is determined as follows, for example.
When a negative emotion is initially read for the occupant A identified by the occupant identification information acquisition means 5 and the light color is changed to induce a positive emotion after the red light color is emitted in the light emitting unit 1 In addition, when the light color change from red to yellow results in 70% of the emotion (emotion value) of the occupant A reaching the target positive value (target value), this is stored. Moreover, as a result of changing the light color from red to yellow-green in order to induce occupant A to positive emotion in the same situation, the numerical value in the positive state (target value) where occupant A's emotion (emotional value) is the target ) Reaches 80%, and this is memorized, and as a result of changing the light color from red to green, the emotion (emotion value) of the occupant A reaches 90% of the target positive value (target value). If so, remember this. Then, when the occupant A gets on the next time, the history in the history storage means 70 is referred to, and the light color change from red to green with a high degree of arrival is performed. The emotion value can be read by the emotion analysis apparatus described above, and the positive value of the target value (target emotion value) can be set in advance.

  Here, a light emission control flow executed by the light emitting unit control means 10 will be described with reference to FIG. This light emission control flow is performed under the condition that the light emission operation is turned on (flow S1). The light emission operation ON may be based on, for example, a switch operation of an occupant to a predetermined switch, or the vehicle itself. It may be triggered by the start of operation. When the light emission operation is turned on, occupant identification information, occupant information (emotion information), external environment information, and vehicle information are acquired.

  In S2, when the emotion information of the occupant is acquired as “anger” from the emotion analysis device as the occupant information acquisition unit 4 mounted on the vehicle, the light color determination unit 30 stores the light color storage unit 20 of FIG. The light color is determined to be “red” with reference to the contents (S3), and this is generated as a light emission signal. Similarly, when the passenger's emotion information is acquired as “sadness”, “calmness”, and “joy”, the light color determination means 30 refers to the contents of the storage means 20 shown in FIG. 3 and changes the light color to “blue”. “Green” and “Yellow” are determined and generated as a light emission signal. Then, the generated light emission signals are transmitted to the light emitting unit 1 (S4), and the light emitting unit 1 that has received them emits light according to the signals.

  Next, the light color change flow 1 executed by the light emitting unit control means 10 will be described with reference to FIG. The light color changing means 50 provided in the light emission control means 10 determines whether or not a predetermined time has elapsed after the light emission signal supply means 40 transmits the light emission signal (S10). Here, the process proceeds to S11 on the condition that 3 minutes have passed, and it is determined whether or not the current light color is “red”. If the current light color is “red”, which is a negative emotion, the process proceeds to S12, and the occupant's emotion is led to a positive emotion based on the contents stored in the light color change mode storage means 80 (see FIG. 4). The change of “orange → yellow → green” is executed for the light emitting unit 1. On the other hand, if the current color is not “red” (S11: NO), the process proceeds to S13 to determine whether it is “blue”. In the case of “blue”, which is a negative emotion like “red”, the process proceeds to S14, and the passenger's emotion is changed to a positive emotion based on the storage contents of the light color change mode storage means 80 (see FIG. 4). In order to guide, the light emitting unit 1 is changed to “light blue → green”.

  Next, the light color change flow 2 executed by the light emitting unit control means 10 will be described with reference to FIG. The light color changing means 50 provided in the light emission control means 10 determines whether or not a predetermined time has elapsed after the light emission signal supply means 40 transmits the light emission signal (S20). Here, the process proceeds to S21 on the condition that three minutes have passed, and it is determined whether or not the current light color is “red”. If the current light color is “red”, which is a negative emotion, the process proceeds to S22 to determine whether the outside environment is “morning”. When the outside environment is “morning”, the process proceeds to S23, and “orange → yellow → in order to lead the occupant's emotion to a positive emotion based on the content stored in the light color change mode storage means 80 (see FIG. 5). The “light blue” change is executed on the light emitting unit 1. On the other hand, if the outside environment is not “morning” (S22: NO) and “daytime” is determined in S24, the process proceeds to S25 and is based on the storage contents of the light color change mode storage unit 80 (see FIG. 5). Then, a change of “orange → yellow” is performed on the light emitting unit 1 in order to lead the passenger's emotion to a positive emotion. If the outside environment is not “daytime” (S24: NO), that is, “night”, the process proceeds to S26, and the occupant's emotion is positive based on the contents stored in the light color change mode storage means 80 (see FIG. 5). The change of “orange → green” is performed on the light emitting unit 1 to lead to a different emotion.

  Returning to S21, if the current color is not “red” (S21: NO), the process proceeds to S30 to determine whether it is “blue”. In the case of “blue”, which is a negative emotion like “red”, the process proceeds to S31, and it is determined whether the outside environment is “morning”. If the outside environment is “morning”, the process proceeds to S32, and “light blue” is set to lead the passenger's emotion to a positive emotion based on the storage contents of the light color change mode storage means 80 (see FIG. 5). The change is performed on the light emitting unit 1. On the other hand, if the outside environment is not “morning” (S31: NO) and “daytime” is determined in S33, the process proceeds to S34 and is based on the contents stored in the light color change mode storage unit 80 (see FIG. 5). Then, a change of “light blue → yellow” is performed on the light emitting unit 1 so as to lead the passenger's emotion to a positive emotion. If the outside environment is not “daytime” (S33: NO), that is, “night”, the process proceeds to S35, and the occupant's emotion is positive based on the contents stored in the light color change mode storage means 80 (see FIG. 5). A change of “light blue → green” is performed on the light emitting unit 1 so as to lead to a different emotion. In this case, “morning” means that the time information acquired from the clock is from 5 am to 10 am, “noon” is from 10 am to 6 pm, and “night” is It means that it is from 6:00 pm to 5:00 am.

  Next, the light color change flow 3 executed by the light emitting unit control means 10 will be described with reference to FIG. The light color changing means 50 provided in the light emission control means 10 determines whether or not a predetermined time has elapsed after the light emission signal supply means 40 transmits the light emission signal (S40). Here, the process proceeds to S41 on the condition that 3 minutes have passed, and it is determined whether or not the current light color is “red”. If the current light color is “red”, which is a negative emotion, the process proceeds to S42, and it is determined whether the speed as the vehicle information is “high speed”. In the case of “high speed”, the process proceeds to S43, and the change to “orange” is performed to lead the passenger's emotion to a positive emotion based on the stored contents of the light color change mode storage means 80 (see FIG. 6). It performs with respect to the light emission part 1. FIG. On the other hand, if it is determined that the speed is not “high speed” (S42: NO) and “medium speed” is determined in S44, the process proceeds to S45, based on the contents stored in the light color change mode storage means 80 (see FIG. 6). A change of “orange → yellow” is performed on the light emitting unit 1 in order to lead the passenger's emotion to a positive emotion. Further, when it is not “medium speed” (S44: NO), that is, when it is “low speed”, the process proceeds to S46, and the occupant's emotion is expressed based on the storage contents of the light color change mode storage means 80 (see FIG. 6). A change of “orange → green” is performed on the light emitting unit 1 to lead to a positive emotion.

  Returning to S41, if the current color is not “red” (S41: NO), the process proceeds to S50 to determine whether it is “blue”. In the case of “blue”, which is a negative emotion like “red”, the process proceeds to S51 and it is determined whether the speed is “high speed”. If it is "high speed", the process proceeds to S52, and the change to "light blue" is performed in order to lead the passenger's emotion to a positive emotion based on the storage contents of the light color change mode storage means 80 (see FIG. 6). It performs with respect to the light emission part 1. FIG. On the other hand, when it is not “high speed” (S51: NO) and it is determined as “medium speed” in S53, the process proceeds to S54 and based on the stored contents of the light color change mode storage means 80 (see FIG. 6). The light emitting unit 1 is changed to “light blue → yellow” in order to lead the passenger's emotion to a positive emotion. If it is not “medium speed” (S53: NO), that is, if it is “low speed”, the process proceeds to S55, and the occupant's emotion is expressed based on the storage contents of the light color change mode storage means 80 (see FIG. 6). A change of “light blue → green” is performed on the light emitting unit 1 to lead to a positive emotion. In this case, “low speed” means that the speed measured by a speedometer mounted on the vehicle is 0 km / hour to 30 km / hour, and “medium speed” is 30 km / hour. ~ 60 km / hour, "high speed" means 60 km / hour to 100 km / hour.

  Next, the light color change flow 4 executed by the light emitting unit control means 10 will be described with reference to FIG. The light color changing means 50 provided in the light emission control means 10 determines whether or not a predetermined time has elapsed after the light emission signal supply means 40 transmits the light emission signal (S60). Here, the process proceeds to S61 on the condition that three minutes have passed, and the occupant identification information is acquired from the occupant identification information acquisition means 5. The occupant identification information is information for identifying an individual. From this information, for example, it can be determined whether the occupant is the occupant A or the occupant B, and the occupant A ( Alternatively, if it is determined that the vehicle is an occupant B), the history relating to the occupant is read from the history storage means 70. As shown in FIG. 7, in the history storage means 70, the occupant information (emotion) acquired by the occupant information acquisition means 4 after the light color change is predetermined as a result of changing the light color by the light color change means 50. The degree of arrival indicating how far the vehicle has reached is stored as a history, and information on the highest degree of arrival (in this case, the degree of arrival 90) is acquired from the history regarding the occupant A (S62). When the acquired maximum reach degree is 90 or more (S63: YES), the light color change (here “red → green” (see FIG. 7)) corresponding to the maximum reach degree is executed (S64). When the maximum degree of achievement is less than 90 (S63: NO), a new light color change stored separately is executed (S65).

  In the vehicle lighting device 100 of the present embodiment as described above, the light emitting unit 1 provided in the vehicle interior (vehicle interior) and capable of adjusting the light color, the occupant information acquisition means 4 for acquiring occupant information about the occupant, A light-emitting unit control unit 10 that controls light emission in the light-emitting unit 1. The light-emitting unit control unit 10 includes a light color storage unit 20 that stores a plurality of light colors associated with occupant information, and a light color storage unit. The light color determination means 30 for determining the light color based on the occupant information (emotion) acquired by the occupant information acquisition means 4 from among the plurality of light colors stored in 20 and the light color determination for the light emitting unit 1 And a light emission signal supply means 40 for supplying a light emission signal including information on the light color determined by the means 30. Thereby, in the light emission part 1, it becomes possible to supply the illumination light of the light color according to a passenger | crew's emotion, and a passenger | crew can grasp | ascertain own emotion according to a light color. The light color among several elements that determine the light emission mode in the light emitting unit 1 can appropriately express a person's emotion for each type. Can be grasped. In the embodiment described above, the occupant information acquisition unit 4 acquires the occupant's emotion based on the voice uttered by the occupant. Thereby, it becomes possible to acquire a passenger | crew's emotion appropriately, and it is possible to adjust a light color suitably based on this acquired passenger | crew's emotion (occupant information).

  Further, the vehicle lighting device 100 changes the emotion of the occupant to a predetermined state after the light emission control unit 10 supplies a light emission signal including information on the light color determined by the light color determination unit 30. Accordingly, a light color changing means 50 for changing the light color with time is provided. The light color among several elements that define the light emission mode in the light emitting unit 1 has a different impression given to the occupant due to the difference, and the occupant's emotion can be changed by the change in the light color. Therefore, in the present embodiment, after the light emission signal is supplied, the light color is changed with time in order to change the passenger's emotion to a predetermined state. For example, the passenger's emotion is led to a state suitable for driving. It is possible. In other words, when it is determined that the psychological state is negative in the initial stage, the light color is changed so as to change to a positive psychological state suitable for driving after emitting light with the light color corresponding to the psychological state. It is carried out.

  In addition, the vehicle lighting device 100 uses the occupant identification information acquisition unit 5 for acquiring occupant identification information for individually identifying the occupant, and the occupant's emotion in a state where the light color is changed by the light color change unit 50. The light-color-changed occupant information acquisition unit 4 is acquired as occupant information after change, and the light-emitting unit control unit 10 stores the light-color-changed occupant information in association with the occupant identification information together with the light color change mode. The light color changing means 50 changes the light color while referring to the contents stored in the history storage means 70. Thus, by referring to the light color change history for each occupant, it is possible to realize a light color change suitable for the occupant.

  Further, the vehicle lighting device 100 indicates the degree of arrival indicating how much the passenger's emotion has reached a predetermined state (positive state) as a result of changing the light color by the light color changing means 50. The light color change means 50 determines the light color change mode based on the degree of arrival stored in the history storage means 70 in association with the identification information and stored in the history storage means 70. Thus, since the light color change mode is determined based on the degree of arrival stored in the history storage means 70, it is possible to approach a predetermined state (positive state) each time the light color change is repeated.

<Other embodiments>
The embodiment of the present invention has been described above. However, in addition to the embodiment described with reference to the above description and drawings, for example, the following embodiment can be used.
For example, in the above-described embodiment, a vehicle (automobile) is exemplified as a vehicle. However, a train or a play vehicle as a ground vehicle, an airplane or a helicopter as a flight vehicle, a ship or a diving as a sea or underwater vehicle. The lighting device 100 can be applied to a vehicle such as a boat.

Moreover, in the said embodiment, although the passenger | crew's emotion was illustrated as passenger | crew information, for example, a passenger | crew's body temperature (thermometer), heart rate (heart rate meter), myoelectricity (electromyograph), age (individually input), Information on gender (individually input), clothing (acquires color information, etc. from the camera), hairstyle (acquires outline, etc. from the camera), and reflects this information in the lighting mode. Can be recognized.
In the above embodiment, the time zone (morning, noon, night) is exemplified as the external environment information. However, for example, the illuminance (illuminance meter), chromaticity (chromaticity meter), and weather (the Japan Meteorological Agency via the Internet). Weather information from the sky, etc.), the color of the sky (same weather information), the current position (GPS) of the vehicle, etc., and the information is reflected in the lighting mode, so that the environment where the vehicle is placed It is also possible to produce lighting suitable for
Moreover, in the said embodiment, although speed was illustrated as vehicle information, for example, information, such as an acceleration (accelerometer) and a steering angle (information from a steering wheel), is acquired, and this information is reflected in an illumination mode, It is also possible to produce lighting suitable for the situation of the vehicle itself.

Moreover, in the said embodiment, although the passenger information acquisition means 4 after light color change is comprised with the same body as the passenger information acquisition means, it is good also as what is comprised by a respectively separate information acquisition means.
Further, in the above embodiment, a plurality of buttons are arranged on the vehicle as the occupant identification information acquisition means 5, and each occupant is registered for each button, and when the occupant gets into the vehicle, each button is displayed. It is supposed to identify the occupant by operating, but for example, fingerprint authentication, vocal cord authentication, retina authentication etc. can be adopted, and the seat position adjustment using a system that individually adjusts the seat position for each occupant It is good also as what identifies a passenger | crew according to.

  The light color changing unit 50 controls the light color change based on the speed as the vehicle information. However, the light color changing unit 50 may change the light color for each automatic driving level, for example. For example, at an automatic driving level where the level of automatic driving is high, i.e., where the driver's driving involvement is relatively not required, the driver is brought into a relaxed state, and the driving level of the driver is low, i.e., the driver is involved in driving. The light color can be changed to guide the driver to an awakening state at an automatic driving level that requires a relatively large amount.

  Further, the light color changing means 50 controls the light color change based on the time zone (morning, noon, night) as the external environment information, but for example, depending on the time and purpose such as when going out or returning home. The light color may be changed. In this case, when you go out, change the light color (change to yellow) to lead to a healthy state that does not make you feel tired when you arrive at the destination, and when you go home, drop the awakening level according to arrival at home and go to sleep The light color can be changed (changed to green) in order to guide. Further, as the external environment information, the light color may be changed according to “danger prediction information” using an existing danger prediction system (such as an ambient sensor, vehicle-to-vehicle communication, and a road environment monitor). For example, the light color can be changed when “danger prediction information” is acquired such that another vehicle is approaching the vehicle or another vehicle is approaching from the left or right direction of the intersection ahead. .

  The light color changing means 50 recognizes the occupant by the occupant identification information obtaining means and changes the light color with reference to the information in the history storage means for occupants who have a history in the past. The light color can also be changed for a passenger having no history, that is, a new passenger using the history of the past passengers (for example, a change mode viewed from the average degree of arrival of each passenger).

DESCRIPTION OF SYMBOLS 1 ... Light emission part, 2 ... Outside environment information acquisition means, 3 ... Vehicle information acquisition means, 4 ... Crew information acquisition means (Crew information acquisition means after light color change), 5 ... Crew Identification information acquisition means, 10 ... light emission control means, 20 ... light color storage means, 30 ... light color determination means, 40 ... light emission signal supply means, 50 ... light color change means, 60 ... Time measuring means, 70 ... History storage means, 100 ... Vehicle lighting device

Claims (6)

A light emitting unit provided in the vehicle interior and capable of adjusting the light color;
Occupant information acquisition means for acquiring occupant information about the occupant;
A light emitting unit control means for controlling light emission in the light emitting unit,
The light emitting unit control means includes:
Light color storage means for storing a plurality of light colors associated with occupant information;
A light color determining means for determining the light color based on the occupant information acquired by the occupant information acquiring means from a plurality of light colors stored in the light color storage means;
A light emission signal supply means for supplying a light emission signal including information on the light color determined by the light color determination means to the light emitting section;
A vehicle lighting device comprising: The light emitting unit control means includes:
Light color changing means for changing the light color with time so as to change the occupant's status to a predetermined state after supplying a light emission signal including light color information determined by the light color determining means. The vehicle illumination device according to claim 1, further comprising: An external environment information acquisition means for acquiring external environment information related to the external environment;
The vehicle illumination device according to claim 2, wherein the light color changing unit changes the light color while referring to the external environment information. Vehicle information acquisition means for acquiring vehicle information about the vehicle,
The vehicle lighting device according to claim 2 or 3, wherein the light color changing means changes the light color while referring to the vehicle information. Occupant identification information acquisition means for acquiring occupant identification information for individually identifying the occupant;
A light color change occupant information acquisition means for acquiring occupant information related to the occupant in a state where the light color is changed by the light color change means as occupant information after light color change, and
The light emitting unit control means further includes a history storage means for storing the occupant information after the light color change in association with the occupant identification information together with the light color change mode, and the light color change means is stored in the history storage means. The vehicle lighting device according to any one of claims 2 to 4, wherein the light color is changed while referring to stored contents. The history storage means stores, as a result of changing the light color by the light color changing means, the degree of arrival of the occupant information after the light color change up to the predetermined state in association with the occupant identification information,
The vehicle illumination device according to claim 5, wherein the light color changing unit determines a change mode of the light color based on a degree of arrival stored in the history storage unit.

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