JP2014094708A - Cabin lighting system - Google Patents

Cabin lighting system Download PDF

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Publication number
JP2014094708A
JP2014094708A JP2012248385A JP2012248385A JP2014094708A JP 2014094708 A JP2014094708 A JP 2014094708A JP 2012248385 A JP2012248385 A JP 2012248385A JP 2012248385 A JP2012248385 A JP 2012248385A JP 2014094708 A JP2014094708 A JP 2014094708A
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light
control unit
state
pulse
lighting system
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Japanese (ja)
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Takao Muramatsu
隆雄 村松
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Koito Manufacturing Co Ltd
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Koito Manufacturing Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/80—Circuits; Control arrangements

Abstract

PROBLEM TO BE SOLVED: To more simply detect a state of consciousness of an occupant, and also perform the lighting that meets the state of consciousness of the occupant using an existing interior light.SOLUTION: A cabin lighting system includes an interior light 4 on a vehicle roof part 3, and lights up the periphery of a driver's seat 5 with light from the interior light 4. A wristwatch type pulse sensor 6 is put on a driver D, and the pulse of the driver D is measured with the pulse sensor 6, and a measurement signal is transmitted to a control unit of the interior light 4. The control unit decides a state of consciousness of the driver D on the basis of the pulse measurement value, and controls the dimming of the interior light 4 such that illumination light of color of the driver's preference is generated when in a comfortable state, rest light is generated when in an excited state, awaking light is generated when in a doze state, and warning light is generated when in a slump state.

Description

本発明は、車両搭乗者の意識状態に応じて車室内を照明する照明システムに関する。   The present invention relates to an illumination system that illuminates a vehicle interior in accordance with a conscious state of a vehicle occupant.

従来、車両搭乗者の意識状態に応じて照明光を変化させる技術が知られている。例えば、特許文献１には、頭部電極からの信号により運転者の脳波を測定し、測定値が運転者の居眠り状態を示すときに、運転席前方のメータ部に設けたランプから注意喚起色の光を発生させる照明システムが記載されている。   2. Description of the Related Art Conventionally, a technique for changing illumination light according to a conscious state of a vehicle occupant is known. For example, in Patent Document 1, a driver's brain wave is measured by a signal from a head electrode, and when a measured value indicates the driver's dozing state, a warning color is displayed from a lamp provided in a meter portion in front of the driver's seat. An illumination system is described that generates the following light.

実開平５−３０７９６号公報Japanese Utility Model Publication No. 5-30796

ところが、従来の照明システムによると、意識状態を検出するために、搭乗者が電極入りのキャップを装着しなければならないという煩わしさがあった。また、メータ部に設置されたランプからの照明光で注意を促しているため、計器類の数値が読み取りにくくなるという問題点もあった。   However, according to the conventional lighting system, in order to detect the state of consciousness, there is an inconvenience that the passenger must wear a cap with electrodes. Moreover, since attention is urged by illumination light from a lamp installed in the meter section, there is a problem that it is difficult to read the numerical values of the instruments.

そこで、本発明の目的は、搭乗者の意識状態をより簡易に検出できるとともに、既設の室内灯を利用して、搭乗者の意識状態に適った照明を行うことができる車室照明システムを提供することにある。   SUMMARY OF THE INVENTION An object of the present invention is to provide a vehicle interior lighting system that can more easily detect a passenger's consciousness state and can perform illumination suitable for the occupant's consciousness state using an existing room light. There is to do.

上記課題を解決するために、本発明は、次のような車室照明システムを提供する。
（１）車室内を照明する室内灯と、室内灯の光出力を調節する調光部と、搭乗者の脈拍を測定する脈拍センサーと、脈拍検出値に基づいて調光部を制御する制御部とを備えたことを特徴とする車室照明システム。 In order to solve the above problems, the present invention provides the following vehicle interior lighting system.
(1) A room light that illuminates the interior of the vehicle, a light control unit that adjusts the light output of the room light, a pulse sensor that measures the pulse of the passenger, and a control unit that controls the light control unit based on the pulse detection value And a vehicle interior lighting system.

（２）室内灯が異なる波長の光を発生する複数の半導体発光素子を含み、調光部が各半導体発光素子に流れる電流を個別に調節することを特徴とする車室照明システム。 (2) The vehicle interior lighting system characterized in that the interior light includes a plurality of semiconductor light emitting elements that generate light of different wavelengths, and the light control unit individually adjusts the current flowing through each semiconductor light emitting element.

（３）脈拍測定値が搭乗者の感情の昂ぶりを示すとき、室内灯が安息光を発生するように、制御部が調光部を制御することを特徴とする車室照明システム。 (3) The vehicle interior lighting system, wherein the control unit controls the dimming unit so that the room light generates repose light when the pulse measurement value indicates a feeling of a passenger's emotion.

（４）脈拍測定値が搭乗者の居眠りを示すとき、室内灯が覚醒光を発生するように、制御部が調光部を制御することを特徴とする車室照明システム。 (4) The vehicle interior lighting system, wherein the control unit controls the light control unit so that the room light generates awakening light when the pulse measurement value indicates that the passenger is falling asleep.

（５）脈拍測定値が搭乗者の身体的異常を示すとき、室内灯が警告光を発生するように、制御部が調光部を制御することを特徴とする車室照明システム。 (5) The vehicle interior lighting system, wherein when the pulse measurement value indicates a physical abnormality of the occupant, the control unit controls the light control unit so that the room light generates a warning light.

本発明の車室照明システムによれば、搭乗者の脈拍測定に基づいて室内灯の調光を制御するので、搭乗者の意識状態をより簡易に検出できるとともに、既設の室内灯を利用して、搭乗者の意識状態に適った照明を行うことができるという優れた効果を奏する。   According to the vehicle interior lighting system of the present invention, since the dimming of the room light is controlled based on the measurement of the occupant's pulse, the conscious state of the occupant can be detected more easily and the existing room light can be used. , There is an excellent effect that lighting suitable for the conscious state of the passenger can be performed.

本発明の一実施形態を示す自動車の側面図である。1 is a side view of an automobile showing an embodiment of the present invention. 図１の自動車の車室照明システムを示すブロック図である。It is a block diagram which shows the vehicle interior lighting system of the motor vehicle of FIG. 図２の制御部が実行する車室照明プログラムを示すフローチャートである。It is a flowchart which shows the vehicle interior lighting program which the control part of FIG. 2 performs.

以下、本発明の実施形態を図面に基づいて説明する。図１に示す車室照明システム１は、車体２のルーフ部３に室内灯４を備え、室内灯４からの光で運転席５の周辺を照明する。運転席５に着座する運転者Ｄには腕時計型の脈拍センサー６が装着され、脈拍センサー６により運転者Ｄの脈拍を測定し、測定信号を無線により室内灯４に向けて送信するようになっている。なお、脈拍センサー６を運転席５のシートバックや座部クッションに設けることもできる。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. A vehicle interior lighting system 1 shown in FIG. 1 includes an interior lamp 4 on a roof portion 3 of a vehicle body 2, and illuminates the periphery of a driver's seat 5 with light from the interior lamp 4. The driver D seated in the driver's seat 5 is equipped with a wristwatch-type pulse sensor 6, which measures the pulse of the driver D by the pulse sensor 6 and transmits a measurement signal to the indoor lamp 4 by radio. ing. The pulse sensor 6 can also be provided on the seat back or seat cushion of the driver's seat 5.

図２に示すように、室内灯４のケーシング１１には、複数の半導体発光素子１２からなる光源１３と、各発光素子１２に流れる電流を個別に調節する調光部１４と、脈拍センサー６の測定値に基づいて調光部１４を制御する制御部１５とが設けられている。半導体発光素子１２には、それぞれ異なる波長の光を発生する白色ＬＥＤ、赤色ＬＥＤ、青色ＬＥＤが用いられている。脈拍センサー６に加え、運転者Ｄの表情を撮像する画像センサー７と、車室温度を測定する温度センサ−８とを設けてもよい。   As shown in FIG. 2, the casing 11 of the indoor lamp 4 includes a light source 13 including a plurality of semiconductor light emitting elements 12, a light control unit 14 that individually adjusts the current flowing through each light emitting element 12, and a pulse sensor 6. A control unit 15 that controls the light control unit 14 based on the measured value is provided. As the semiconductor light emitting element 12, a white LED, a red LED, and a blue LED that generate light of different wavelengths are used. In addition to the pulse sensor 6, an image sensor 7 that captures the facial expression of the driver D and a temperature sensor 8 that measures the passenger compartment temperature may be provided.

制御部１５は、車両走行時に図３に示すような車室照明プログラムを実行する。まず、脈拍センサー６から運転者Ｄの脈拍測定値を入力し（Ｓ３１）、次に、脈拍測定値に基づいて運転者Ｄの意識状態を判断する（Ｓ３２）。人の意識状態と脈拍数は相関関係にあるため、例えば、運転者の注意が集中する快適状態、感情が昂ぶっている興奮状態、入眠予兆を伴う居眠り状態、体調の急変に伴う低迷状態など、複数の意識状態に対応する脈拍数を統計学的な標準値または運転者個人の実測値として制御部１５に格納しておくことができる。   The control unit 15 executes a vehicle interior lighting program as shown in FIG. First, the pulse measurement value of the driver D is input from the pulse sensor 6 (S31), and then the consciousness state of the driver D is determined based on the pulse measurement value (S32). Since human consciousness and pulse rate are correlated, for example, comfort state where driver's attention is concentrated, excitement state where emotions are obsessed, doze state with sleep onset sign, sluggish state due to sudden change in physical condition, etc. The pulse rate corresponding to a plurality of consciousness states can be stored in the control unit 15 as a statistical standard value or an actual measured value of the driver.

続いて、制御部１５は、運転者Ｄの意識が快適状態であると判断したとき（Ｓ３３）、室内灯４がその運転者Ｄにお気に入りの発光色である好感光を発生するように調光部１４を制御する（Ｓ３４）。また、運転者Ｄの意識が興奮状態にあるときに（Ｓ３５）、室内灯６が青色光などの安息光を発生し（Ｓ３６）、意識が居眠り状態にあるときに（Ｓ３７）、例えば波長４００〜５６０ｎｍの覚醒光を発生し（Ｓ３８）、意識が低迷状態にあるときは（Ｓ３９）、点滅光や赤色光などの警告光を発生するように（Ｓ４０）、調光部１４を制御する。   Subsequently, when the control unit 15 determines that the consciousness of the driver D is in a comfortable state (S33), dimming is performed so that the interior light 4 generates a favorable exposure that is a favorite emission color for the driver D. The unit 14 is controlled (S34). When the driver D is in an excited state (S35), the interior light 6 generates a repose light such as blue light (S36), and when the driver is in a dozing state (S37), for example, the wavelength 400 The light control unit 14 is controlled so as to generate awakening light of ˜560 nm (S38), and when the consciousness is in a sluggish state (S39), a warning light such as blinking light or red light is generated (S40).

このように、本実施形態の車室照明システム１によれば、脈拍センサー６を使用しているので、従来のような脳波測定キャップを装着する煩わしさがなく、運転者Ｄの意識状態をより簡易に検出することができる。また、運転者Ｄの意識状態に応じて室内灯４の調光を制御するため、車体ルーフ部３に既設の室内灯４を利用して安全運転に寄与できるうえ、室内灯４の照明色によって車室内環境を運転者Ｄの好みに合わせて演出することも可能になる。   Thus, according to the passenger compartment lighting system 1 of the present embodiment, since the pulse sensor 6 is used, there is no troublesomeness of wearing a conventional electroencephalogram measurement cap, and the state of consciousness of the driver D is more enhanced. It can be easily detected. Further, since the dimming of the interior lamp 4 is controlled according to the state of consciousness of the driver D, it is possible to contribute to safe driving by using the interior lamp 4 that is already installed in the vehicle body roof portion 3, and depending on the illumination color of the interior lamp 4 It is also possible to produce the vehicle interior environment according to the preference of the driver D.

なお、本発明は上記実施形態に限定されるものではなく、以下に例示するように、発明の趣旨を逸脱しない範囲で、各部の構成を適宜に変更して実施することも可能である。
（１）脈拍センサー６を運転者以外の搭乗者に装着し、その搭乗者の意識状態に応じて室内灯４の調光を制御すること。
（２）脈拍測定値に画像センサー７の撮像情報と温度センサ−８の室温情報とを加え、搭乗者の意識状態を総合的に判断すること。 In addition, this invention is not limited to the said embodiment, As shown below, it is also possible to implement by changing suitably the structure of each part in the range which does not deviate from the meaning of invention.
(1) The pulse sensor 6 is attached to a passenger other than the driver, and the dimming of the room light 4 is controlled according to the conscious state of the passenger.
(2) The imaging information of the image sensor 7 and the room temperature information of the temperature sensor-8 are added to the pulse measurement value to comprehensively determine the conscious state of the passenger.

（３）車室温度が低いときに暖色系の照明光を発生したり、車室温度が高いときに青系の照明光を発生したりするなど、温度センサ−８の室温情報に基づいて室内灯４の調光を制御すること。
（４）室内灯４をスポットライトとして使用する場合、スポット光が照明対象物の移動に追従するように、画像センサー７の撮像情報に基づいて室内灯４における光源１３の向きを制御すること。 (3) Warm-colored illumination light is generated when the passenger compartment temperature is low, and blue illumination light is generated when the passenger compartment temperature is high. Control dimming of lamp 4.
(4) When the interior light 4 is used as a spotlight, the direction of the light source 13 in the interior light 4 is controlled based on the imaging information of the image sensor 7 so that the spot light follows the movement of the illumination object.

１ 車室照明システム
４ 室内灯
６ 脈拍センサー
１２ 半導体発光素子
１３ 光源
１４ 調光部
１５ 制御部 DESCRIPTION OF SYMBOLS 1 Car interior lighting system 4 Interior light 6 Pulse sensor 12 Semiconductor light emitting element 13 Light source 14 Light control part 15 Control part

Claims (5)

車室内を照明する室内灯と、室内灯の光出力を調節する調光部と、搭乗者の脈拍を測定する脈拍センサーと、脈拍測定値に基づいて調光部を制御する制御部とを備えたことを特徴とする車室照明システム。   A room light that illuminates the interior of the vehicle, a light control unit that adjusts the light output of the room light, a pulse sensor that measures the pulse of the passenger, and a control unit that controls the light control unit based on the measured pulse value Car interior lighting system characterized by that. 前記室内灯が異なる波長の光を発生する複数の半導体発光素子を含み、前記調光部が各半導体発光素子に流れる電流を個別に調節する請求項１記載の車室照明システム。   The vehicle interior lighting system according to claim 1, wherein the interior light includes a plurality of semiconductor light emitting elements that generate light of different wavelengths, and the light control unit individually adjusts a current flowing through each semiconductor light emitting element. 前記脈拍測定値が搭乗者の感情の昂ぶりを示すとき、室内灯が安息光を発生するように、制御部が調光部を制御する請求項１または２記載の車室照明システム。   The vehicle interior lighting system according to claim 1 or 2, wherein when the pulse measurement value indicates a feeling of a passenger's emotion, the control unit controls the dimming unit so that the indoor light generates repose light. 前記脈拍測定値が搭乗者の居眠りを示すとき、室内灯が覚醒光を発生するように、制御部が調光部を制御する請求項１〜３の何れか一項に記載の車室照明システム。   The vehicle interior lighting system according to any one of claims 1 to 3, wherein the control unit controls the dimming unit so that the indoor lamp generates awakening light when the pulse measurement value indicates that the passenger falls asleep. . 前記脈拍測定値が搭乗者の身体的異常を示すとき、室内灯が警告光を発生するように、制御部が調光部を制御する請求項１〜３の何れか一項に記載の車室照明システム。   The vehicle interior according to any one of claims 1 to 3, wherein when the pulse measurement value indicates a physical abnormality of the occupant, the control unit controls the dimming unit so that the interior light generates a warning light. Lighting system.
JP2012248385A 2012-11-12 2012-11-12 Cabin lighting system Pending JP2014094708A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105873281A (en) * 2016-05-27 2016-08-17 苏州中国汽车零部件产业基地发展有限公司 Automobile atmosphere lamp control system and method based on safety
JP2018002118A (en) * 2016-07-08 2018-01-11 株式会社ミツバ Vehicle lighting device
US10112621B2 (en) 2016-06-23 2018-10-30 Hyundai Motor Company Wearable device, vehicle for communicating with the wearable device
JP2018199391A (en) * 2017-05-26 2018-12-20 トヨタ紡織株式会社 Vehicular illumination device
JP7386440B2 (en) 2017-12-19 2023-11-27 パナソニックＩｐマネジメント株式会社 Biometric device, operating method of biometric device, and determination device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105873281A (en) * 2016-05-27 2016-08-17 苏州中国汽车零部件产业基地发展有限公司 Automobile atmosphere lamp control system and method based on safety
US10112621B2 (en) 2016-06-23 2018-10-30 Hyundai Motor Company Wearable device, vehicle for communicating with the wearable device
JP2018002118A (en) * 2016-07-08 2018-01-11 株式会社ミツバ Vehicle lighting device
JP2018199391A (en) * 2017-05-26 2018-12-20 トヨタ紡織株式会社 Vehicular illumination device
JP7386440B2 (en) 2017-12-19 2023-11-27 パナソニックＩｐマネジメント株式会社 Biometric device, operating method of biometric device, and determination device

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