JP6852438B2 - Dimming system for mobile body, control method of dimming member, control program of dimming member, vehicle - Google Patents

Description

The present invention relates to a dimming system for a mobile body, a control method for a dimming member, a control program for a dimming member, and a vehicle.

Conventionally, for example, various devices have been proposed for a dimming member (dimming film) that is attached to a window to control the transmission of external light (Patent Documents 1 and 2). One such light control film uses a liquid crystal. In such a dimming member using a liquid crystal, a liquid crystal material is sandwiched by a transparent film material provided with a transparent electrode to manufacture a liquid crystal cell, and the liquid crystal cell is sandwiched by a linear polarizing plate.
In this dimming member, the transmission of external light is controlled by changing the electric field applied to the liquid crystal to change the orientation of the liquid crystal.

It is expected that such a dimming member will be used in a moving body such as a vehicle. Further, with respect to such a vehicle or the like, various configurations for detecting awakening of a occupant are disclosed (Patent Documents 3 to 7, etc.).

Japanese Unexamined Patent Publication No. 03-47392 Japanese Unexamined Patent Publication No. 08-184273 Japanese Unexamined Patent Publication No. 2002-114504 Japanese Unexamined Patent Publication No. 2015-162005 Japanese Unexamined Patent Publication No. 2016-68799 Japanese Unexamined Patent Publication No. 2016-209231 Japanese Unexamined Patent Publication No. 2016-5339

Here, the passenger who boarded the moving body may be attacked by sleep due to the vibration of the moving body. In such a case, passengers other than the driver may want to sleep comfortably. Also, if the passenger is a child, it may be desirable to have a particularly comfortable sleep.
An object of the present invention is to enable a passenger to sleep comfortably in a moving body.

Specifically, the present invention provides the following.

(1) A dimming system for a moving body provided on a moving body in which a dimming member is arranged at a portion where external light is incident.
An arousal level detector that detects the arousal level of the passenger,
An awakening state determination unit that determines the awakening state of a passenger based on the arousal level detected by the arousal level detection unit, and an awakening state determination unit.
A drive control unit that drives the dimming member and locally changes the transmittance of the dimming member based on the determination result of the awakening state determination unit.
A dimming system for mobiles.

(2) In (1)
The drive control unit locally changes the transmittance of the dimming member based on the determination result of the awakening state determination unit.
A dimming system for mobile objects.

(3) In (1) or (2)
The arousal level detection unit detects the eye closure rate of the passenger's eyes as the arousal level, and determines the arousal level.
The awakening state determination unit acquires the eye closure rate for the predetermined time of the passenger a plurality of times, determines that the passenger is in a sleep state when any of the acquired results satisfies the determination criteria, and each of the acquired results. Judging that the patient is awake when at least one of the results does not meet the criteria.
A dimming system for mobile objects.

(4) In any of (1) to (3),
The arousal level detection unit individually detects the arousal level of a plurality of passengers and determines the arousal level.
The dimming member is divided into a plurality of segments, and the dimming member is divided into a plurality of segments.
The drive control unit individually changes the transmittance of the segment corresponding to the boarding position of the passenger based on the detection result of the alertness detection unit.
A dimming system for mobile objects.

(5) A method for controlling a dimming member detected at a portion of a moving body where external light is incident.
An arousal detection step that detects the arousal of the passenger,
An awakening state determination step for determining the awakening state of a passenger based on the arousal level detected by the arousal level detection step, and an awakening state determination step.
A drive control step that drives the dimming member and locally changes the transmittance of the dimming member based on the determination result of the awakening state determination step.
A method of controlling a dimming member.

(6) A dimming member that controls the transmittance of a dimming member arranged at a portion where external light of a moving body is incident by causing the information processing device to execute a predetermined processing procedure by execution by the information processing device. It ’s a control program,
The processing procedure
An arousal detection step that detects the arousal of the passenger,
An awakening state determination step for determining the awakening state of a passenger based on the arousal level detected by the arousal level detection step, and an awakening state determination step.
A drive control step that drives the dimming member and locally changes the transmittance of the dimming member based on the determination result of the awakening state determination step.
A control program for a dimming member.

(7) With any of the mobile dimming systems from (1) to (4),
An information processing device that executes the mobile dimming system and
Vehicles equipped with.

According to the present invention, the passenger can sleep comfortably in the moving body.

It is sectional drawing explaining the structure of the light control film used in the light control system for a mobile body of embodiment. It is a figure explaining the vehicle which has the dimming system for a mobile body of embodiment. It is a figure explaining the form of the transparent electrode of a light control film. It is a flowchart which shows the processing procedure of the dimming system for a mobile body of embodiment.

[First Embodiment]
[Dimming film]
FIG. 1 is a cross-sectional view illustrating the configuration of a light control film used in the light control system for a mobile body according to the first embodiment.
The light control film 1 is a film-like member that controls transmitted light by using a liquid crystal, and is configured by sandwiching a liquid crystal cell 4 for a light control film between linear polarizing plates 2 and 3.

[Linear polarizing plate]
The linear polarizing plates 2 and 3 are not particularly limited as long as they include a polarizing element, and may have a polarizing plate protective film on one side or both sides of the polarizing element.
The polarizer is formed by immersing a film made of a hydrophilic polymer such as polyvinyl alcohol (PVA) in an aqueous solution containing iodine as a dichromatic dye and stretching the film to form a complex of polyvinyl alcohol and iodine. Examples thereof include a polarizing element, a polarizing element made of a polymer obtained by treating a plastic film such as polyvinyl chloride and orienting a polyene.
When a bicolor dye is used as a bicolor dye instead of iodine, the bicolor dye is an azo dye, a stillben dye, a methine dye, a cyanine dye, a pyrazolone dye, or a triphenylmethane dye. , Kinolin dyes, oxazine dyes, thiazine dyes, anthraquinone dyes and the like are used.

The above-mentioned polarizing plate protective film is not particularly limited as long as it can protect the above-mentioned polarizer and has desired transparency. Examples of the material of the polarizing plate protective film include acetyl cellulose resin, cycloolefin resin, polyether sulfone resin, amorphous polyolefin, modified acrylic polymer, polystyrene, epoxy resin, acrylic resin, polycarbonate resin, and polyamide. Examples thereof include based resins, polyimide resins, polyester resins and the like, heat-curable resins such as acrylic, urethane, acrylic urethane, epoxy and silicone resins, and ultraviolet curable resins. Above all, it is preferable to use an acetyl cellulose-based resin, a cycloolefin-based resin, or an acrylic-based resin as the above-mentioned resin material. Among them, triacetyl cellulose (TAC), which is an acetyl cellulosic resin, is particularly preferable.
The linear polarizing plates 2 and 3 are arranged in the liquid crystal cell 4 by an adhesive layer made of an acrylic transparent adhesive resin or the like by the cross Nicol arrangement. The linear polarizing plates 2 and 3 are provided with retardation films 2A and 3A for optical compensation on the liquid crystal cell 4 side, respectively, but the retardation films 2A and 3A may be omitted if necessary. .. Further, instead of the cross Nicol arrangement, the parallel Nicol arrangement may be used.

[Liquid crystal cell]
The liquid crystal cell 4 is configured by sandwiching the liquid crystal layer 8 between the film-shaped lower laminated body 5D and the upper laminated body 5U.

[Lower laminate, upper laminate]
The lower laminate 5D is formed by forming the transparent electrode 11, the spacer 12, and the alignment layer 13 on the base material 6.
The upper laminated body 5U is formed by laminating a transparent electrode 16, a spacer 12, and an alignment layer 17 on a base material 15.

〔Base material〕
Various transparent resin films can be applied to the base materials 6 and 15, but the transparent resin films have low optical anisotropy and have a transmittance of 80% or more in the visible wavelength (380 to 800 nm). It is desirable to apply.
Examples of the material of the transparent resin film include an acetyl cellulose resin such as triacetyl cellulose (TAC), a polyester resin such as polyethylene terephthalate (PET) and polyethylene naphthalate (PEN), polyethylene (PE), and polypropylene (PP). Polysulfone, polymethylpentene, EVA and other polyolefin resins, polyvinyl chloride, polyvinylidene chloride and other vinyl resins, acrylic resins, polyurethane resins, polysulfone (PEF), polyethersulfone (PES), polycarbonate ( Examples thereof include resins such as PC), polysulfone, polyether (PE), polyether ketone (PEK), (meth) acronitrile, cycloolefin polymer (COP), and cycloolefin copolymer.
In particular, resins such as polycarbonate (PC), cycloolefin polymer (COP), and polyethylene terephthalate (PET) are preferable.
In the present embodiment, a polycarbonate film having a thickness of 100 μm is applied to the base materials 6 and 15, but transparent resin films having various thicknesses can be applied.

[Transparent electrode]
The transparent electrodes 11 and 16 are composed of the transparent resin film and a transparent conductive film laminated on the transparent resin film.
As the transparent conductive film, various transparent electrode materials applied to this kind of transparent resin film can be applied, and examples thereof include a transparent metal thin film having an oxide-based total light transmittance of 50% or more. .. Examples thereof include tin oxide-based, indium oxide-based, and zinc oxide-based.

Examples of the tin oxide (SnO2) system include nesa (tin oxide SnO2), ATO (Antimony Tin Oxide: antimony-doped tin oxide), and fluorine-doped tin oxide.
Examples of the indium oxide (In2O3) system include indium oxide, ITO (Indium Tin Oxide), and IZO (Indium Zic Oxide).
Examples of the zinc oxide (ZnO) system include zinc oxide, AZO (aluminum-doped zinc oxide), and gallium-doped zinc oxide.
In this embodiment, a transparent conductive film is formed by ITO (Indium Tin Oxide).
The specific configurations of the transparent electrodes 11 and 16 of the present embodiment will be described in detail later.

〔Spacer〕
The spacer 12 is provided to define the thickness of the liquid crystal layer 8, and various resin materials can be widely applied. Here, there are mainly two types of spacers 12: spherical spacers (hereinafter, referred to as “bead spacers”) and columnar spacers (hereinafter, referred to as “photo spacers”).
Here, in the light control film 1, it is conceivable to form a photospacer by using a photolithography method in which a photosensitive resin is applied, exposed, and developed after forming an alignment layer on a base material. In this case, it is not preferable because the alignment layer is damaged by the exposure or development process, which causes poor alignment. Further, it is conceivable to apply the alignment layer after the photo spacer is first produced on the base material, but in this case, the alignment layer around the photo spacer cannot be given a sufficient orientation regulating force. It is not preferable because it causes poor orientation. Therefore, the light control film produced by the photo spacer may not be able to be accurately controlled to a desired transmittance due to poor orientation.
On the other hand, the bead spacer is sprayed on the alignment layer after forming the alignment layer, and since the contact area with the alignment layer is narrow, the alignment layer as described above is damaged or the alignment is poor. It is possible to reduce the occurrence of problems such as the occurrence of.
Therefore, by applying the bead spacer as the spacer 12, the transmittance of the produced light control film 1 can be changed more precisely and finely than when the photo spacer is used.
Here, since the light control film 1 of the present embodiment is arranged in the vehicle 20, it is necessary to accurately control the transmittance as needed. Therefore, in the present embodiment, the bead spacer is applied to the spacer 12.

Here, as the bead spacer used for the spacer 12, known beads used for a liquid crystal display device, a color filter, or the like can be applied. Specifically, the inorganic components include glass, silica, metal oxides (MgO, Al2O3), etc., and the organic components include acrylic resin, epoxy resin, phenol resin, melamine resin, unsaturated polyester resin, and divinylbenzene. Seed polymerization method using core particles obtained by suspension polymerization, emulsion polymerization, or emulsion polymerization of material systems such as polymers, divinylbenzene-acrylic ester copolymers, diacrylic phthalate copolymers, and allyl isocyanurate copolymers. Spherical, cylindrical, cylindrical or the like obtained by a polymerization method such as, or a porous body, a hollow body or the like can be used.
Further, from the viewpoint of improving the dispersibility and adhesion of the beads 12 on the alignment layer, the surface of the bead spacer may be surface-treated. The surface coating material is not particularly limited as long as immobilization on the bead surface and outflow of chemical substances into the liquid crystal material are not a problem, but for example, polyethylene and ethylene / vinyl acetate copolymer weight. Combined, ethylene / acrylic ester copolymer, polymethyl (meth) acrylate copolymer, SBS type styrene / butadiene block copolymer, epoxy resin, phenol resin, melamine resin and the like can be used.
In the above description, the spacer 12 is provided on both the upper laminated body 5U and the lower laminated body 5D, but the present invention is not limited to this, and the upper laminated body 5U and the lower laminated body 5U and the lower laminated body are not limited thereto. It may be provided in either one of 5D.

[Orientation layer]
The alignment layers 13 and 17 are formed by a photo-alignment layer. As the photo-alignment material applicable to the photo-alignment layer, various materials to which the photo-orientation method can be applied can be widely applied, and examples thereof include a photodegradable type, a photodimerization type, and a photoisomerization type. it can.
In this embodiment, a photodimerized material is used. Examples of the photodimerized material include cinnamates, coumarins, benzylidenephthalimidines, benzylideneacetophenones, diphenylacetylenes, stillbazoles, uracils, quinolinones, maleimides, and polymers having a cinnamicylene acetate derivative. Among them, a polymer having one or both of cinnamate and coumarin is preferably used because of its good orientation-regulating power. Specific examples of such a photodimerized material include the compounds described in JP-A-9-118717, JP-A-10-506420, JP-A-2003-505561 and WO2010 / 150748. Can be mentioned.
Instead of the photo-alignment layer, the alignment layer may be produced by a rubbing treatment, or the alignment layer may be produced by shaping a fine line-shaped uneven shape.

[Liquid crystal layer]
As the liquid crystal layer 8, various liquid crystal materials applicable to this type of light control film 1 can be widely applied. Specifically, a nematic liquid crystal compound, a smectic liquid crystal compound, and a cholesteric liquid crystal compound can be applied to the liquid crystal layer 8 as a liquid crystal compound having no polymerizable functional group.
Examples of the nematic liquid crystal compound include biphenyl compounds, terphenyl compounds, phenylcyclohexyl compounds, biphenylcyclohexyl compounds, phenylbicyclohexyl compounds, trifluoro compounds, phenyl benzoate compounds, and phenyl cyclohexyl benzoate compounds. , Phenylbenzoate phenyl compound, bicyclohexylcarboxylic acid phenyl compound, azomethine compound, azo compound, and azooxy compound, stilben compound, trans compound, ester compound, bicyclohexyl compound, phenylpyrimidine compound , Biphenylpyrimidine-based compounds, pyrimidine-based compounds, biphenylethine-based compounds and the like can be mentioned.

Examples of the smectic liquid crystal compound include ferroelectric polymer liquid crystal compounds such as polyacrylate-based, polymethacrylate-based, polychloroacrylate-based, polyoxylan-based, polysiloxane-based, and polyester-based compounds.
Examples of the cholesteric liquid crystal compound include cholesteryl linoleate, cholesteryl oleate, cellulose, cellulose derivatives, polypeptides and the like.

In the liquid crystal cell 4, the sealing material 19 is arranged so as to surround the liquid crystal layer 8. The upper laminated body 5U and the lower laminated body 5D are integrally held by the sealing material 19, and leakage of the liquid crystal material is prevented. As the sealing material 19, for example, a thermosetting resin such as an epoxy resin or an acrylic resin, an ultraviolet curable resin, or the like can be applied.

In the light control film 1, an AC voltage whose polarity is switched at a predetermined cycle is applied to the transparent electrodes 11 and 16, and an electric field is formed in the liquid crystal layer 8 by this AC voltage. Further, the electric field controls the orientation of the liquid crystal molecules provided on the liquid crystal layer 8 and controls the transmitted light.

A VA method (Vertical Orientation type) is applied to the orientation control of the liquid crystal layer 8 in the light control film 1 of the embodiment. The VA method has a configuration in which an alignment film having an orientation regulating force in the vertical direction is provided on a transparent electrode formed on a substrate, and a liquid crystal layer 8 is sandwiched between upper and lower substrates.
In the VA method, the liquid crystal molecules of the liquid crystal layer 8 are vertically aligned when there is no electric field, whereby the light control film 1 is in a light-shielded state by blocking the incident light, and the liquid crystal of the liquid crystal layer 8 is applied by applying this electric field. Is horizontally oriented, and the light control film 1 transmits the incident light and becomes a transmitted state.
Like this VA method, a light control mode in which light is shielded when there is no electric field and is transmitted when an electric field is applied is called a normally black mode.

However, instead of the VA method, various drive methods such as a TN (Twisted Nematic) method, an IPS (In Plane Switching) method, and a GH (Guest Host) method may be applied.
Here, the TN method has a configuration in which an alignment film that has been subjected to a rubbing treatment or the like so that the orientation directions differ by 90 ° is attached on a transparent electrode formed on the substrate, and the liquid crystal layer 8 is sandwiched between the upper and lower substrates. Due to the alignment restricting force of the alignment film, the liquid crystal molecules are aligned along the orientation direction of the alignment film, and other liquid crystal molecules are oriented along the liquid crystal molecules, so that the direction of the liquid crystal molecules is twisted by 90 °. Then, a polarizing plate is arranged on the outside of the upper and lower substrates in parallel with the orientation direction of the alignment film.
In the TN method, when there is no electric field, the light that has passed through the polarizing plate becomes linearly polarized light and enters the liquid crystal. Since the liquid crystal molecules are twisted and oriented by 90 °, the incident light is also twisted and passed by 90 °, so that the liquid crystal molecules can pass through the polarizing plate below. As a result, the light control film 1 transmits the incident light and becomes a transmitted state.
Further, the application of this electric field causes the liquid crystal molecules to stand upright and be twisted, but since the orientation regulating force is stronger on the surface of the alignment film, the orientation direction of the liquid crystal molecules remains along the alignment film. In such a state, since the liquid crystal molecules are isotropic with respect to the passing light, rotation of the linearly polarized light incident on the liquid crystal layer 8 in the polarization direction does not occur. Therefore, the linearly polarized light that has passed through the upper polarizing plate cannot pass through the lower polarizing plate, and the light control film 1 blocks the incident light and is in a light-shielding state.
Like this TN method, a light control mode in which a light is transmitted when there is no electric field and is shielded when an electric field is applied is called a normally white mode.
The IPS method is a method in which electrodes are collectively formed on one of the base materials, and the amount of transmitted light is controlled by rotating liquid crystal molecules oriented by an electric field of the electrodes in the lateral (horizontal) direction with respect to the substrate. is there.
Further, the GH method is a method in which a liquid crystal composition in which a dichroic dye is dissolved as a guest in a nematic liquid crystal as a host is used. Since the dichroic dye has a uniaxial light absorption axis and absorbs only light vibrating in the light absorption axis direction, the orientation of the dichroic dye is changed according to the movement of the liquid crystal by the electric field. By controlling the orientation of the light absorption axis, the transmission state of the liquid crystal cell can be changed. When the light control film 1 is manufactured by the GH method, the linear polarizing plate can be omitted.
Further, the liquid crystal cell 4 may be driven by a so-called multi-domain method by patterning the photoalignment layer or the like, or may be driven by a single domain.
Further, the light control film 1 can be widely applied when various light control films whose transmitted light amount can be adjusted are used in addition to the above-mentioned liquid crystal light control film.

[Multi-segment]
FIG. 2 is a diagram illustrating a vehicle 20 having the mobile dimming system 22 of the first embodiment. The vehicle 20 in FIG. 2 is a schematic view seen from above vertically.
The light control film 1 of the present embodiment is arranged as a moving body on a skylight (roof window 21) provided on almost the entire roof of the vehicle (passenger car) 20. In the present embodiment, the light control film 1 will be described by arranging the light control film 1 on the entire surface of the roof window 21, but the present invention is not limited to this, and the roof window 21 is not limited to this, and the roof window 21 is within the range in which the effects of the present invention are exhibited. It may be arranged as a part of. Further, the roof window 21 of the present embodiment will be described with an example provided on almost the entire surface of the roof, but the present invention is not limited to this, and a part of the roof, for example, above the front seat or above the rear seat. It may be provided only in the window.
The light control film 1 is produced by dividing the transparent electrode 11 and / or the transparent electrode 16 into a plurality of insulated partial electrodes (regions) capable of individually supplying a drive power source. As a result, as shown in FIG. 2, the light control film 1 is a multi having SG1 to SG6 having a plurality of regions (hereinafter, each region is appropriately referred to as a segment) in which the transmittance can be changed independently. Formed by segments.

It is also possible to spread a plurality of dimming films in the plane of the roof window 21 of the vehicle 20 so that each dimming film corresponds to the above-mentioned segment, but in this case, the connection between the adjacent dimming films is possible. The eyes (boundaries) may be noticeable, which may spoil the appearance.
On the other hand, the light control film 1 of the present embodiment is formed in the form of one film, and only the transparent electrodes constituting the light control film 1 are divided into a plurality of regions (partial electrodes) as described above. There is. Therefore, it is possible to prevent the boundary between the segments of the light control film 1 from becoming conspicuous as much as possible, and it is also possible to improve the work efficiency of arranging the light control film 1 on the roof window 21.

Here, the form of the electrode of the light control film 1 of the present embodiment having a plurality of segments will be described.
FIG. 3 is a diagram illustrating a form of a transparent electrode of a light control film. In FIG. 3, in order to clarify the explanation, the illustration of the configurations other than the transparent electrodes constituting the light control film 1 is omitted.
The transparent electrodes 11 and 16 of the light control film 1 are divided as follows, for example.
As shown in FIG. 3A, the transparent electrode 16 provided on the light control film 1 is divided into three in a direction along the long side (traveling direction of the vehicle 20) and in a direction along the short side (vehicle 20). The transparent electrode 16 is formed on the base material 15 in a state of being divided into a plurality of partial electrodes 16A to 16F in a state of being divided into two in a width direction orthogonal to the traveling direction of the above. Further, the transparent electrode 11 facing the transparent electrode 16 is formed on the entire surface of the base material 6 without being divided. As a result, the multi-segment light control film 1 having the segments SG1 to SG6 is formed.
Although the above description shows an example in which the transparent electrode 16 is divided into six parts, the present invention is not limited to this, and the transparent electrode 11 is divided into six parts and the transparent electrode 16 is formed on the entire surface of the base material 15. You may do so.

Further, as shown in FIG. 3B, the transparent electrode 11 and the transparent electrode 16 may be divided in the same manner as the transparent electrode 16 in FIG. 3A. Specifically, the transparent electrode 16 is formed by a plurality of partial electrodes 16A to 16F, and the transparent electrode 11 is divided so as to correspond to the transparent electrode 16, that is, the transparent electrode 11 is formed by the plurality of partial electrodes 11A to 11F. By doing so, a multi-segment light control film 1 having segments SG1 to SG6 is formed.
Such division of the transparent electrodes 11 and 16 can be produced by patterning the transparent electrodes.

In addition, in the division by patterning of the transparent electrodes 11 and 16, the number of divisions of the transparent electrodes 11 and 16 facing each other may be different.
Further, in the examples shown in FIGS. 3A and 3B described above, the patterning of the transparent electrodes 11 and 16 is divided into a rectangular shape, but the patterning is not limited to this. For example, it may be divided into various shapes such as a hexagonal shape, a trapezoidal shape, a parallelogram shape, and a triangular shape.
For example, FIG. 3C shows an example in which the transparent electrode 16 is patterned by a plurality of triangular-shaped partial electrodes. When the segments are formed by patterning with the triangular partial electrodes in this way, for example, as shown by hatching in FIG. 3C, the region set to the light-shielding state may have a shape close to a rhombus. it can.

The light control film 1 is provided so that each segment SG1 to SG6 of the light control film 1 corresponds to the seats S1 to S6 of the vehicle 20. As a result, the vehicle 20 is configured so that the brightness inside the vehicle can be adjusted for each passenger.

In the present embodiment, as described above, a flexible light control film as a light control member will be described in the roof window 21, but the present embodiment is not limited to this. For example, the base material of the above-mentioned light control film 1 may be used as a glass plate to form a light control member having no flexibility, and the light control member may be arranged in the vehicle 20 instead of the roof window 21. Good.

〔vehicle〕
The vehicle 20 of the present embodiment is a six-seater passenger car, and seats S1 to S6 are provided in the vehicle as shown in FIG. The seat S1 is a driver's seat, and the passenger M1 of the seat S1 is the driver of the vehicle 20. Further, in FIG. 2, a passenger M5 who is a passenger is seated in the seat S5.
In the vehicle 20, the above-mentioned dimming film 1 is attached to a roof window 21 which is a portion where external light mainly enters the vehicle, and the dimming film 1 takes in external light into the vehicle as needed. At the same time, the amount of external light incident on the vehicle can be adjusted.
The vehicle 20 includes a light control system 22 for a mobile body having a light control film 1, an arousal detection unit 23, an awakening state determination unit 24, and a drive control unit 25 of the light control film 1 attached to the roof window 21 described above. Has been done.

In the present embodiment, the mobile dimming system 22 having the arousal detection unit 23, the awakening state determination unit 24, and the drive control unit 25 of the dimming film 1 is an information processing device (for example, as a control program for the dimming film). , It is configured to be executed by an electronic control unit (ECU 30) provided in the vehicle 20.
Here, the ECU 30 is an input circuit unit and an arithmetic processing unit (input circuit unit) for inputting various sensors provided in the vehicle, various signals output from the image pickup devices 23A to 23E described later, operation signals output from the operation panel, and the like. Controls to control each part such as (hereinafter referred to as "CPU"), various arithmetic programs executed by the CPU, the control program of the above-mentioned dimming film, a storage circuit unit for storing the arithmetic results, and the drive source (engine) of the vehicle 20. It includes an output circuit unit and the like that output a signal, a control signal for controlling the light control film 1, and the like.
The mobile dimming system 22 is not limited to the above control program, and each part constituting the mobile dimming system 22 may be configured as a processing circuit.

The moving body dimming system 22 is a system that adjusts the amount of external light incident from the roof window 21 into the vehicle, and controls each segment of the dimming film 1 attached to the roof window 21 to control the inside of the vehicle. The amount of external light incident on the window can be adjusted for each seat.

The arousal level detection unit 23 detects the arousal level of the passenger and outputs the arousal level detection result. Here, the arousal level of the passenger is an index indicating the degree of arousal of the passenger. The arousal level detection unit 23 of the present embodiment includes imaging devices 23A to 23E for photographing the face (eyes) of the occupant as a sensor for measuring the arousal level information.
The image pickup devices 23A to 23E are arranged at positions where passengers seated in each seat (S2 to S6) other than the driver's seat can be photographed from the front, and the image data obtained by photographing is output to the alertness detection unit 23. To do.
Specifically, the image pickup device 23C is arranged on the passenger seat side between the front window and the roof window 21 on the ceiling inside the vehicle 20, and thus the face of the passenger seated in the passenger seat S4. Can be photographed (eyes).
Further, the image pickup devices 23A, 23B, 23D, and 23E are arranged in the headrests of the seats S1, S2, S4, and S5, respectively, and are seated in the seats S2, S3, S5, and S6, which are the seats behind the seats, respectively. The face (eyes) of the passenger can be photographed.
The positions of the image pickup devices 23A, 23B, 23D, and 23E are not limited to this, and can be arranged in various parts such as, for example, in a part surrounding the roof window 21 on the ceiling. Further, the position of the image pickup device 23C may also be arranged on the passenger seat side on the instrument panel on which instruments such as a speedometer are arranged in front of the vehicle, for example.

In the image pickup devices 23A to 23E, information (seating position information) of the passenger's seating position (seat position) to be photographed is stored in a storage unit (not shown), and the image data obtained by capturing this seating position information is also stored. At the same time, it is output to the arousal degree detection unit 23.
Specifically, the image pickup apparatus 23A outputs the seating position information, which is the information on the seating position (position of the seat S2) of the passenger sitting in the seat S2, to the alertness detection unit 23. Similarly, the image pickup devices 23B, 23C, 23D, and 23E have seating position information that serves as information on the seating positions (positions of the seats S3, S4, S5, and S6) of the passengers seated in the seats S3, S4, S5, and S6, respectively. Is output to the arousal detection unit 23.

Each imaging device continuously images the passenger, and as the continuous imaging means, it is preferable to take an image of about 10 to 60 times per second, and more preferably about 30 times per second. This is because if the imaging time interval per second is less than 10 times, the timing of imaging and the duration of blinking become the same, and it becomes difficult to observe the blinking state. Theoretically, it is better that the number of images taken per second is large, and it may be 60 times or more per second. However, the processing capacity of the CPU, the storage capacity of a storage unit such as a memory, the processing time for determining the awakening state, etc. Considering this, it is most preferable to take an image of about 30 times.

In the above description, the image pickup device 23A has shown an example in which the seating position information of the passenger is provided in advance, but the present invention is not limited to this, and the seating position of the passenger is detected separately from the image pickup device 23A. A sensor may be provided. For example, apart from the image pickup device 23A, pressure sensors are arranged on each seat surface of the seats S2 to S6 to detect the seating of the occupant of each seat based on the change in pressure, and based on the detection signal. The seating position information may be output.
Further, a near-infrared camera having a relatively high sensitivity to light having a wavelength in the near-infrared region (hereinafter referred to as near-infrared light) may be applied to the image pickup apparatus. In this case, the near-infrared camera generates image data obtained by capturing an image including the driver's face (eyes). The near-infrared camera is mainly composed of a lens and an image sensor or the like that detects light by a plurality of pixels arranged two-dimensionally, and the image sensor is a CCD (Charge Coupled Device) element or a CMOS. (Complementary Metal Oxide Semiconductor) It is composed of elements and the like.

The arousal level detection unit 23 processes each image data output from the image pickup devices 23A to 23E to detect the eyes of the passenger, measures the ratio of the time when the eyes are closed (eye closure rate), and closes the eyes. The rate is output as the arousal degree to the awakening state determination unit 24 together with the seating position information.
If the passenger is not sitting in the seat, the alertness detection unit 23 cannot recognize the eyes and face of the passenger from the image data output from the image pickup device, and therefore determines that the seat is vacant and determines that the seat is vacant. The information is output to the awakening state determination unit 24 as seating position information.

Here, the above-mentioned eye closure rate is low when sufficiently awake, gradually increases when a sleeper attacks, and remarkably increases during sleep.
In the above description, an example in which a plurality of image pickup devices 23A to 23E are provided in the alertness detection unit 23 is shown, but the present invention is not limited to this, and for example, one image pickup device can be used for each seat. The passenger may be photographed. In this case, the arousal level detection unit 23 may extract the faces (eyes) of a plurality of passengers from the imaged data to detect the arousal level of each passenger.
Further, instead of or in addition to the eye closure rate, information such as the frequency of eye closure, which is the frequency of closing the eyes in a unit time, a change in the line of sight, and a change in the movement of the passenger may be used as the arousal level.

Further, the alertness detection unit 23 may apply a measuring device for measuring the position and movement of the passenger's pupil instead of the above-mentioned imaging devices 23A to 23E. In this case, for example, near-infrared light is emitted from the translucent portion of this measuring device to the passenger's eye, and the reflected light reflected from the eye is received by the light receiving portion to obtain the position and movement of the passenger's pupil. May be measured and the measurement result may be used as the degree of arousal.

The awakening state determination unit 24 determines based on a predetermined determination criterion based on the arousal degree (eye closure rate) of the passengers seated in each seat detected by the awakening degree detection unit 23, and the awakening degree is lower than the determination criterion. In this case, it is determined that the passenger is in an awake state, and if the arousal level is equal to or higher than the criterion, it is determined that the passenger is in a sleeping state.
The awakening state determination unit 24 outputs the determination information for determining the state (sleeping state or awakening state) of the passengers seated in each seat to the drive control unit 25 together with the seating position information of the passengers.
Here, human blinks are usually about 20 times per minute on average, and the eye closing time per blink is about 0.15 seconds. Therefore, humans are at most about about 1 minute in the awake state. You have closed your eyes for 3 seconds. Therefore, the eye closure rate in the normal state is about 5%.
In the present embodiment, the average of the eye closure rates in the awake state of the passenger (human) is used as a criterion. Specifically, 1 minute (60 seconds) in the awake state is divided into 6 parts, the eye closure rate is obtained every 10 seconds, and the average value of these is used as a criterion for determining the awake state and the sleep state.
The awakening state determination unit 24 continuously measures the eye closure rate of the passengers seated in each seat every 10 seconds, and the value of each eye closure rate for 6 consecutive times (1 minute in total) is equal to or higher than the average value. If so, it is determined that the passenger is in a sleeping state, assuming that the criterion is satisfied. On the other hand, if any one of the values of the eye closure rate of 6 times in a row is lower than the average value, it is determined that the determination criteria are not satisfied and the patient is in an awake state.
By dividing the 10-second eye closure rate into multiple times (6 times) and comparing it with the judgment criteria, if the eye closure rate is erroneously detected, or if dust or the like enters the eyes, the eyes will be closed for a short period of time. In some cases, it is possible to prevent the awakening state determination unit 24 from determining that it is in a sleeping state.
The measurement of the eye closure rate is not limited to 10 seconds and 6 times, and may be performed at other measurement times and times.

It should be noted that the arousal detection unit 23 is provided with another sensor, for example, a sensor that measures the biometric information of the occupant, instead of the above-mentioned image pickup devices 23A to 23E or in combination with the above-mentioned image pickup devices 23A to 23E. Specifically, a heart rate sensor, a pulse wave sensor, a breathing sensor, a blood pressure sensor, a brain wave sensor, or the like may be used.
In this case, the sensor detects data such as a change in the occupant's heart rate, a change in the pulse rate, a change in the respiratory rate, a change in blood pressure, and a change in the brain wave as the arousal level. In addition, various known methods used for detecting the wakefulness state and the sleep state of the passenger may be widely applied.

Here, the heartbeat sensor is composed of, for example, an ultrasonic transmitter that measures ultrasonic waves of the heart so as to hit the back of a passenger seated in a seat, and an ultrasonic receiver that receives reflected waves generated by the heartbeat. Can be configured. The heartbeat sensor incidents ultrasonic waves toward the heart from an ultrasonic transmission unit and extracts a heartbeat waveform from the reflected waves generated by the heartbeat.
When the arousal level is detected based on the change in the heart rate by the heart rate sensor in this way, the awakening state determination unit 24 utilizes the fact that the heart rate is lower than that in the awake state in the sleeping state, and the heart rate in the awake state. It is determined whether or not the patient is in a sleeping state by comparing with the state of. Specifically, the heart rate of the passenger is measured a plurality of times at a predetermined time, the judgment standard is obtained by calculating the average value of the measured data, and the change with respect to the judgment standard (mean value) is detected.

Further, as the pulse wave sensor, for example, a pressure sensor for measuring the pulse of a passenger seated in the seat is embedded in each seat, and the pulse waveform detected from the pressure sensor is extracted.
When the arousal level is detected based on the change of the pulse wave by the pulse wave sensor in this way, the awakening state determination unit 24 utilizes the fact that the pulse rate in the sleeping state is lower than that in the awakening state, and the pulse in the awakening state. It is determined whether or not the patient is in a sleeping state by comparing with the number of states. Specifically, the pulse rate of the passenger is measured a plurality of times in a predetermined time, the judgment standard is obtained by calculating the average value of the measured data, and the change with respect to the judgment standard (mean value) is detected.

As the breathing sensor, for example, a pressure sensor that measures the movement of the chest, the movement of the abdomen, and the change in pressure on the seat surface of the passenger seated in the seat is embedded in each seat, and the breathing waveform is generated by this pressure sensor. Extract.
When the arousal level is detected based on the change in the respiratory rate by the breathing sensor in this way, the awakening state determination unit 24 has a higher ratio of abdominal breathing than the awakening state in the sleeping state as compared with the chest breathing. Is used to determine whether or not the patient is in a sleeping state. Specifically, the ratio of the passenger's chest breathing and abdominal breathing is measured multiple times in a predetermined time, and the judgment standard is obtained by calculating the average value of the measured data, and the judgment standard (average value). Detect changes in the ratio of chest breathing to abdominal breathing.

Further, the blood pressure sensor is attached to, for example, the wrist of a passenger seated in a seat, and the blood pressure sensor extracts a fluctuation waveform of blood pressure.
When the arousal level is detected based on the change in blood pressure by the blood pressure sensor in this way, the awakening state determination unit 24 utilizes the fact that the blood pressure tends to be lower than that in the awake state, and is in a sleeping state. Judge whether or not. Specifically, the blood pressure of the passenger is measured a plurality of times at a predetermined time, the judgment standard is obtained by calculating the average value of the measured data, and the change with respect to the judgment standard (mean value) is detected.

The electroencephalogram sensor is attached to, for example, the head of a passenger sitting in a seat, and the electroencephalogram sensor extracts a fluctuation waveform of the electroencephalogram.
When the arousal degree is detected based on the change of the electroencephalogram by the electroencephalogram sensor in this way, the awakening state determination unit 24 has an α wave and other low-amplitude fast waves in the awake state, but the α wave in the sleep state. It is determined whether or not the person is in a sleeping state by utilizing the fact that the number of low-amplitude waves is reduced, various low-amplitude frequency waves are mixed, and a hump wave, a spindle wave, etc. are generated.

The drive control unit 25 includes a power supply unit that outputs a drive power supply to each segment SG1 to SG6 of the light control film 1, and is composed of an arithmetic processing unit that controls the power supply unit. The drive control unit 25 locally reduces the transmittance of the light control film 1 based on the determination information output from the awakening state determination unit 24 and the seating position information of the occupant.
Specifically, when the determination information input from the awakening state determination unit 24 includes the sleep state determination result, the drive control unit 25 is seated based on the seating position information of the passenger determined to be in the sleep state. The transmittance of the segment of the light control film 1 corresponding to the position is switched to the light shielding state. As a result, the mobile dimming system 22 can darken the seat of the passenger who is determined to be in a sleeping state, and can make the passenger's sleep more comfortable and more comfortable.

The drive control unit 25 maintains the current transmittance of the seated position of the passenger determined to be in the awake state without changing the transmittance of the corresponding light control film 1 segment. Further, at this time, the drive control unit 25 may control the transmittance of the segment of the dimming film 1 corresponding to the seat in which the passenger is seated according to the request of the passenger by any operation of the passenger. Good.

For example, as shown in FIG. 2, when the drive control unit 25 determines that the awakening state determination unit 24 is in the awake state for the passenger M5 seated in the seat S5, the drive control unit 25 of the segment SG5 corresponding to the seat S5. Maintain the status quo without changing the transmittance. At this time, the passenger M5 can adjust the transmittance of the segment SG5 of the light control film 1 corresponding to his / her seat S5 to a desired transmittance by using an operation panel (not shown). Here, as described above, since the light control film 1 of the present embodiment applies the bead spacer to the spacer 12, it more accurately responds to the preference of the passenger as compared with the case where the photo spacer is applied. It can vary to the transmittance.

On the other hand, when the awakening state determination unit 24 determines that the passenger M5 in the seat S5 is in the sleeping state, the drive control unit 25 reduces the transmittance of the corresponding segment SG5 to the minimum transmittance. The segment SG5 is changed to a light-shielded state, and the periphery of the seat S5 is darkened.

Here, the mobile dimming system 22 repeats at predetermined time intervals, inputs image data from the imaging devices 23A to 23E, detects the arousal level by the arousal level detection unit 23, and is based on the detected arousal level. The awakening state determination unit 24 determines the awakening state.
This makes it possible to periodically determine the passenger's state (awakening state, sleeping state) that changes from moment to moment, and when the passenger's state changes from the awakening state to the sleeping state, or conversely from the sleeping state. When the state changes to the awake state, the transmittance of the segment of the light control film 1 corresponding to the passenger's seat can be appropriately changed.
In addition, when a new passenger is seated in an absent seat, or when a seated passenger gets off and the seat becomes vacant, it is possible to respond to a change in the seat condition.

The drive control unit 25 has segments SG1 to SG4 and SG6 corresponding to the seats on which the passenger is not on board (seats S2, S3, S4, S6 in the example of FIG. 2) and the seats S1 on which the driver is seated. As in the case where the passenger is determined to be awake, the transmittance is maintained as it is. As a result, the mobile dimming system 22 can prevent the segment of the dimming film 1 from being unnecessarily shaded, and sufficiently allows outside light to enter the vehicle in a seat other than the sleeping passenger. Can be incorporated into.

Further, when the awakening state determination unit 24 determines that the state of the passenger who was in the awake state has changed to the sleeping state, the drive control unit 25 gradually adjusts the transmittance by, for example, a transition time of about several tens of seconds. It may be reduced to. As a result, it is possible to prevent the amount of external light incident from the roof window 21 from suddenly changing and disturbing the sleep of the occupant.
Here, as described above, in the light control film 1 of the present embodiment, since the bead spacer is applied to the spacer 12, the transmittance gradually changes depending on the transition time as compared with the case where the photo spacer is applied. When the light is generated, the transmittance can be changed more accurately, and the amount of incident light of external light can be changed smoothly.

On the contrary, when the awakening state determination unit 24 determines that the state of the passenger who was in the sleeping state has changed to the awakening state, the drive control unit 25 gradually takes the same transition time. It increases the transmittance, which allows the passenger to wake up comfortably.
Further, if there is even one passenger who is determined to be in the sleeping state, the drive control unit 25 controls all the segments of the light control film 1 to the light-shielding state, or conversely, the passenger who is determined to be in the awake state. If there is even one person, all the segments of the light control film 1 may be controlled to be in a translucent state.

The mobile dimming system 22 operates by being supplied with electric power from an alternator and a battery mounted on the vehicle 20.
Here, the alternator is a generator connected to the axle or engine of the vehicle 20, and is a rectifier called a rectifier that rectifies the generated AC voltage and converts it into a DC output voltage, and an integrated circuit. It is integrally equipped with a voltage control device called a voltage regulator that is formed by the above and controls the output voltage.
Since the voltage output from the alternator changes according to the rotation speed of the axle of the vehicle 20 or the rotation speed of the engine, the voltage regulator monitors the output voltage and controls the field current of the alternator. The output voltage is being adjusted. The voltage regulator supplies electric power at a voltage at which the electrical components of the vehicle 20 normally operate even under ever-changing driving conditions.
The battery is, for example, a secondary battery such as a lead battery, a nickel hydrogen battery, or a lithium ion battery, which stores the output voltage from the alternator and discharges the stored output voltage to power the mobile dimming system 22. Supply.
The method of supplying electric power to the dimming system 22 for a mobile body has shown an example in which electric power is supplied from an alternator and a battery mounted on the vehicle 20, but the method is not limited to this, and for example, a vehicle. Power is supplied from either the alternator or the battery mounted on the 20th, a battery for the mobile dimming system 22 is separately provided, and power is supplied from the battery, etc. The known power supply method of the above may be applied.

FIG. 4 is a flowchart showing a processing procedure of the dimming system for a mobile body according to the embodiment.
The electronic control unit (ECU) including the awakening degree detection unit 23, the awakening state determination unit 24, and the drive control unit 25 described above executes the control program of the dimming film to execute the processing procedure (SP1 to FIG. 4) shown in FIG. SP5) is repeated at regular time intervals to control the transmittance of the light control film 1.

That is, the mobile dimming system 22 provided in the vehicle 20 acquires image data and passenger seating position information from the image pickup devices 23A to 23E, respectively (SP1), and is seated in each seat by the arousal detection unit 23. The arousal level of each passenger is detected (SP2).
Next, the awakening state determination unit 24 determines whether the passengers in each seat are in the awakening state or the sleeping state (SP3). Based on this determination result, the drive control unit 25 controls the transmittance of each segment SG2 to SG6 of the light control film 1 (SP4).

Based on the above, the mobile dimming system 22 of the present embodiment has the following effects.
(1) The moving body dimming system 22 has an arousal level detection unit 23 that detects the arousal level of the passenger and an awakening state that determines the awakening state of the passenger based on the arousal level detected by the arousal level detection unit 23. It includes a determination unit 24 and a drive control unit 25 that drives the dimming film 1 and locally changes the transmittance of the dimming film 1 based on the determination result of the awakening state determination unit 24. As a result, when it is determined that the passenger is in a sleeping state, the passenger who gets on the vehicle 20 can sleep comfortably in the vehicle.

(2) Further, in the mobile light control system 22, the alertness detection unit 23 individually detects the alertness of a plurality of passengers, and the light control film 1 is divided into a plurality of segments SG1 to SG6. The drive control unit 25 individually changes the transmittance of the segment corresponding to the boarding position of the occupant based on the detection result of the alertness detection unit 23. As a result, when a plurality of passengers are on the vehicle 20, the transmittance of each segment of the light control film can be appropriately controlled according to the state of each passenger, and each passenger in the vehicle can be appropriately controlled. Can make your sleep comfortable.

(3) The control method of the light control film is an arousal level detection step (SP2) for detecting the arousal level of the passenger and an awakening state for determining the awakening state of the passenger based on the arousal level detected by the arousal level detection step. It includes a determination step (SP3) and a drive control step (SP4) that drives the dimming member 1 and locally changes the transmittance of the dimming member 1 based on the determination result of the awakening state determination step. As a result, the passenger who got on the vehicle 20 can sleep comfortably in the vehicle.

(4) Further, the control program of the light control film causes the electronic control unit to execute a predetermined processing procedure by execution by the electronic control unit (information processing device), and the processing procedure detects the arousal degree of the passenger. Based on the awakening level detection step (SP2), the awakening state determination step (SP3) that determines the awakening state of the passenger based on the arousal level detected by the awakening level detection step, and the determination result of the awakening state determination step. It includes a drive control step (SP4) that drives the dimming member 1 and locally changes the transmittance of the dimming member 1. As a result, the passenger who got on the vehicle 20 can sleep comfortably in the vehicle.

[Other Embodiments]
Although the specific configuration suitable for carrying out the present invention has been described in detail above, the present invention can be variously modified in the configuration of the above-described embodiment without departing from the spirit of the present invention.

In the above-described embodiment, in the moving body dimming system 22, the transmittance of the dimming film 1 according to the awakening state is controlled for the passenger M1 (driver) seated in the seat S1 (driver's seat). An example of disengagement is shown, but the present invention is not limited to this, and the transmittance of the light control film 1 is changed according to the awakening state of the passenger M1 (driver) seated in the seat S1 (driver's seat). You may. For example, the dimming system 22 for a mobile body determines the state of the driver based on the detected degree of arousal of the driver, and when the driver is attacked by sleepiness and determines that the driver is in a sleeping state, the seat S1 The transmission rate of the segment SG1 corresponding to (driver's seat) is increased to the maximum value to brighten the driver's seat, whereby the driver's drowsy driving can be prevented.
In this case, it is necessary to provide an imaging device for photographing the driver's face (eye) in the vicinity of the seat S1, for example, on the driver's seat side of the instrument panel, and output the photographing data to the alertness detection unit. ..

In the above-described embodiment, the alertness detection unit 23 shows an example in which a plurality of image pickup devices 23A to 23E are provided according to each seat, but the present invention is not limited to this, and for example, one image pickup device is provided. The arousal level of the passengers in each seat may be detected by. As a result, the configuration of the dimming system for the mobile body can be simplified, and the cost related to the system configuration can be reduced.

In the above-described embodiment, the example in which the dimming system for a moving body is provided in a vehicle (passenger car) as a moving body is shown, but the present invention is not limited to this, and various vehicles other than the passenger car (bus, truck, etc.) Or, it may be provided on a ship (passenger car) or the like.

In the above-described embodiment, the example in which the dimming film is provided on the roof window of the vehicle has been described, but the present invention is not limited to this, and the adjustment is made to a portion such as a side window or a rear window where sunlight is incident on the inside of the vehicle. An optical film may be provided.

In the above-described embodiment, the light control film provided on the roof window of the vehicle has been shown as an example of being divided into a plurality of segments, but the present invention is not limited to this, and the light control film is not divided into a plurality of segments. A light control film composed of one segment may be used.

1 Dimming film 2, 3 Linear polarizing plate 2A, 3A Phase difference film 4 Liquid crystal cell 5U Upper laminate 5D Lower laminate 6, 15 Base material 8 Liquid crystal layer 11, 16 Transparent electrode 12 Spacer 13, 17 Orientation layer 19 Seal Material 20 Vehicle 21 Roof window 22 Dimming system for moving objects 23 Arousal detection unit 23A to 23E Imaging device 24 Awakening state determination unit 25 Drive control unit M1, M5 Passengers S1 to S6 Seats SG1 to SG10 Segment

Claims (7)

It is a dimming system for a moving body provided in a moving body in which a dimming member is arranged at a portion where external light is incident.
An arousal level detector that detects the arousal level of the passenger,
An awakening state determination unit that determines the awakening state of a passenger based on the arousal level detected by the arousal level detection unit, and an awakening state determination unit.
A drive control unit that drives the dimming member and changes the transmittance of the dimming member based on the determination result of the awakening state determination unit.
Equipped with a,
The arousal level detection unit individually detects the arousal level of a plurality of passengers and determines the arousal level.
The dimming member is formed in the form of a single film, and the transparent electrodes constituting the dimming member are divided into a plurality of segments by being divided into a plurality of partial electrodes.
The drive control unit individually changes the transmittance of the segment corresponding to the boarding position of the passenger based on the detection result of the alertness detection unit.
A dimming system for mobile objects. The arousal level detection unit detects the eye closure rate of the passenger's eyes as the arousal level, and determines the arousal level.
The awakening state determination unit acquires the eye closure rate for the predetermined time of the passenger a plurality of times, determines that the passenger is in a sleep state when any of the acquired results satisfies the determination criteria, and each of the acquired results. Judging that the patient is awake when at least one of the results does not meet the criteria.
The dimming system for a mobile body according to claim 1. When the awakening state determination unit determines that the passenger's state has changed from the awake state to the sleeping state, the drive control unit gradually reduces the transmittance of the dimming member by the transition time of a predetermined time. To do,
The mobile dimming system according to claim 1 or 2. When the awakening state determination unit determines that the passenger's state has changed from the sleeping state to the awakening state, the drive control unit gradually increases the transmittance of the dimming member according to the transition time of a predetermined time. To do,
The mobile dimming system according to any one of claims 1 to 3. It is a control method of the dimming member detected at the part where the external light of the moving body is incident.
An arousal detection step that detects the arousal of the passenger,
An awakening state determination step for determining the awakening state of a passenger based on the arousal level detected by the arousal level detection step, and an awakening state determination step.
A drive control step that drives the dimming member and locally changes the transmittance of the dimming member based on the determination result of the awakening state determination step.
Equipped with a,
The alertness detection step individually detects the alertness of a plurality of passengers and determines the alertness.
The dimming member is formed in the form of a single film, and the transparent electrodes constituting the dimming member are divided into a plurality of segments by being divided into a plurality of partial electrodes.
The drive control step individually changes the transmittance of the segment corresponding to the boarding position of the passenger based on the detection result of the alertness detection step.
A method for controlling a dimming member. A control program for a dimming member that controls the transmittance of a dimming member arranged at a portion of a moving body where external light is incident by causing the information processing device to execute a predetermined processing procedure by execution by the information processing device. There,
The processing procedure
An arousal detection step that detects the arousal of the passenger,
An awakening state determination step for determining the awakening state of a passenger based on the arousal level detected by the arousal level detection step, and an awakening state determination step.
A drive control step that drives the dimming member and locally changes the transmittance of the dimming member based on the determination result of the awakening state determination step.
Equipped with a,
The alertness detection step individually detects the alertness of a plurality of passengers and determines the alertness.
The dimming member is formed in the form of a single film, and the transparent electrodes constituting the dimming member are divided into a plurality of segments by being divided into a plurality of partial electrodes.
The drive control step individually changes the transmittance of the segment corresponding to the boarding position of the passenger based on the detection result of the alertness detection step.
A control program for a dimming member. The mobile dimming system according to any one of claims 1 to 4.
An information processing device that executes the mobile dimming system and
Vehicles equipped with.

Images