JP2010105461A - Meter device for vehicle - Google Patents

Meter device for vehicle Download PDF

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Publication number
JP2010105461A
JP2010105461A JP2008277632A JP2008277632A JP2010105461A JP 2010105461 A JP2010105461 A JP 2010105461A JP 2008277632 A JP2008277632 A JP 2008277632A JP 2008277632 A JP2008277632 A JP 2008277632A JP 2010105461 A JP2010105461 A JP 2010105461A
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Japan
Prior art keywords
pointer
imaging camera
imaging
instrument device
vehicle
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Pending
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JP2008277632A
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Japanese (ja)
Inventor
Muneya Matsuura
宗也 松浦
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Nippon Seiki Co Ltd
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Nippon Seiki Co Ltd
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Application filed by Nippon Seiki Co Ltd filed Critical Nippon Seiki Co Ltd
Priority to JP2008277632A priority Critical patent/JP2010105461A/en
Publication of JP2010105461A publication Critical patent/JP2010105461A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To improve appearance of a meter device for a vehicle in which an imaging camera is built in. <P>SOLUTION: A pointer 5 indicates a display plate 4. A pointer driving means 6 turns the pointer 5. The imaging camera 7 includes optical members 7a-7d disposed on a turning axis of the pointer 5. The imaging camera 7 includes a holding member 7f holding the optical members 7a-7d. The pointer 5 turns along the holding member 7f of the imaging camera 7. A plurality of the imaging cameras 7 are arranged at a predetermined interval S. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、撮像カメラを備えた車両用計器装置に関するものである。   The present invention relates to a vehicle instrument device equipped with an imaging camera.

従来より、車両乗員及び車両室内の状態を検知する監視システムが種々提案されており、例えば特許文献1乃至4に開示されている。斯かる監視システムには、光学的手法を用いた画像認識システムや、複数のセンサを車室内に設置して超音波による位置検出を行うシステムなどがあり、車両のダッシュボード内やステアリングコラム上など、車室内の様々な箇所に設置される。
特表平9−501120号公報 特開2003−264826号公報 特表2004−519788号公報 特開平9−39728号公報
Conventionally, various monitoring systems for detecting the state of a vehicle occupant and a vehicle compartment have been proposed. For example, Patent Documents 1 to 4 disclose the monitoring system. Such a monitoring system includes an image recognition system using an optical method, a system in which a plurality of sensors are installed in a vehicle interior, and a position is detected by an ultrasonic wave, such as in a vehicle dashboard or on a steering column. Installed at various locations in the passenger compartment.
JP-T 9-501120 JP 2003-264826 A JP-T-2004-519788 JP-A-9-39728

しかしながら、撮像カメラが車両用計器装置の周辺或いはステアリングコラム上に設置されるため、撮像カメラの後付け感があり、見栄えが良くないという問題を有していた。
本発明は、この問題に鑑みなされたものであり、撮像カメラを内蔵した車両用計器装置の美観向上を目的とするものである。
However, since the imaging camera is installed in the vicinity of the vehicle instrument device or on the steering column, there is a problem that the imaging camera has a feeling of retrofitting and does not look good.
The present invention has been made in view of this problem, and aims to improve the aesthetics of a vehicular instrument device incorporating an imaging camera.

本発明は、請求項1に記載したように、表示板4と、前記表示板4を指示する指針5と、前記指針5を回動させる指針駆動手段6と、前記指針5の回動軸上に配設された光学部材7a〜7dを有する撮像カメラ7と、を備えたものである。   According to the present invention, the display plate 4, the pointer 5 that points to the display plate 4, the pointer drive means 6 that rotates the pointer 5, and the rotation axis of the pointer 5 And an imaging camera 7 having optical members 7a to 7d disposed on the surface.

また、本発明は、請求項2に記載したように、前記撮像カメラ7は、前記光学部材7a〜7dを保持する保持部材7fを有するものである。   In the present invention, the imaging camera 7 includes a holding member 7f that holds the optical members 7a to 7d.

また、本発明は、請求項3に記載したように、前記指針5は、前記撮像カメラ7の前記保持部材7fに沿って回動するものである。   In the present invention, the pointer 5 is rotated along the holding member 7 f of the imaging camera 7.

また、本発明は、請求項4に記載したように、複数の前記撮像カメラ7を所定間隔Sにて配置したものである。   Further, according to the present invention, a plurality of the imaging cameras 7 are arranged at a predetermined interval S as described in claim 4.

また、本発明は、請求項5に記載したように、前記撮像カメラ7から出力された撮像データに基づいて撮像対象の位置を検出するものである。   In the present invention, the position of the imaging target is detected based on the imaging data output from the imaging camera 7.

指針の回動軸上に撮像カメラを配置したことにより、車両用計器装置の美観が向上する。   By arranging the imaging camera on the rotation axis of the pointer, the aesthetics of the vehicle instrument device is improved.

以下、添付図面に基づいて、本発明の一実施形態を説明する。図1は車両用計器装置1の正面図、図2は指示計器2,3の断面図である。図面が煩雑になることを防ぐため、図2において、切断面の平行斜線(ハッチング)は省略する。
車両用計器装置1は、指示計器2,3を備えている。各指示計器2,3は、表示板4,指針5,ステッピングモーター(指針駆動手段)6,撮像カメラ7等からなるものである。
Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a front view of the vehicular instrument device 1, and FIG. 2 is a cross-sectional view of the indicating instruments 2 and 3. In order to prevent the drawing from becoming complicated, in FIG. 2, the parallel oblique lines (hatching) of the cut surfaces are omitted.
The vehicular instrument device 1 includes indicator instruments 2 and 3. Each indicating instrument 2, 3 comprises a display board 4, a pointer, a stepping motor (pointer driving means) 6, an imaging camera 7, and the like.

指針5は、表示板4を指示する指示部5aと、筒状軸部5bとを有しており、この筒状軸部5bには歯車部5cが形成されている。指針5の筒状軸部5bは、軸受け9によって回動可能に支持されている。ステッピングモーター6は回動軸6aを有しており、この回動軸6aはフレーム10に設けられた軸受け11に軸支されている。ステッピングモーター6の回動軸6aには、指針5の歯車部5cに噛合する歯車12が設けられている。ステッピングモーター6は、歯車12を介して、指針5を回動させる。   The pointer 5 has an instruction portion 5a for indicating the display plate 4 and a cylindrical shaft portion 5b, and a gear portion 5c is formed on the cylindrical shaft portion 5b. The cylindrical shaft portion 5b of the pointer 5 is rotatably supported by a bearing 9. The stepping motor 6 has a rotating shaft 6 a, and this rotating shaft 6 a is supported by a bearing 11 provided on the frame 10. A rotating shaft 6 a of the stepping motor 6 is provided with a gear 12 that meshes with the gear portion 5 c of the pointer 5. The stepping motor 6 rotates the pointer 5 via the gear 12.

撮像カメラ7は、レンズ(光学部材)7a,7b,7c,7d及び撮像素子7eを有している。撮像カメラ7は、指針5の筒状軸部5b内に配置される。撮像カメラ7のレンズ7a〜7dは保持部材7fによって保持されており、これらのレンズ7a〜7dの光軸は指針5の回転軸と一致している。指針5は、ステッピングモーター6によって、撮像カメラ7の保持部材7fに沿って回動される。2個の撮像カメラ7から得られる撮像データは制御部(図示しない)に出力され、三角測量法にてターゲット(撮像対象)である車両運転者の位置が検出される。   The imaging camera 7 includes lenses (optical members) 7a, 7b, 7c, 7d and an imaging element 7e. The imaging camera 7 is disposed in the cylindrical shaft portion 5 b of the pointer 5. The lenses 7 a to 7 d of the imaging camera 7 are held by a holding member 7 f, and the optical axes of these lenses 7 a to 7 d coincide with the rotation axis of the pointer 5. The pointer 5 is rotated along the holding member 7 f of the imaging camera 7 by the stepping motor 6. Imaging data obtained from the two imaging cameras 7 is output to a control unit (not shown), and the position of the vehicle driver that is the target (imaging target) is detected by the triangulation method.

図3は、三角測量法によるターゲットの距離計算のための模式図である。任意のターゲットに向かう撮像カメラ7の視線の途中に、既知指標を設定して、この既知指標上での視線ズレ量Wを測定し、ターゲット距離Dを求める。既知指標と撮像素子7eの距離をL、2個の撮像素子7eの間隔をSとすると、ターゲット距離Dは式1となる。
D=S×L(S−W) (式1)
FIG. 3 is a schematic diagram for target distance calculation by triangulation. A known index is set in the middle of the line of sight of the imaging camera 7 toward an arbitrary target, the line-of-sight shift amount W on the known index is measured, and the target distance D is obtained. When the distance between the known index and the image sensor 7e is L, and the interval between the two image sensors 7e is S, the target distance D is expressed by Equation 1.
D = S × L (S−W) (Formula 1)

レンズ7a〜7dには半画角60度の光線が入射し、入射光は撮像素子7eにて結像する。レンズ7a〜7dの材料は2種類以上の樹脂材料を組み合わせからなり、少なくとも1種類は、波長587.6nm、温度20℃における屈折率が1.6以上で且つ、屈折率の波長依存性の指標となるアッベ数が30以下である高屈折率高分散の樹脂材料を選択する。他の材料は、同条件における屈折率が1.5程度、アッベ数が50〜60程度の低屈折率低分散の材料とする。   A light beam having a half angle of view of 60 degrees is incident on the lenses 7a to 7d, and the incident light is imaged by the image sensor 7e. The materials of the lenses 7a to 7d are a combination of two or more types of resin materials, and at least one type has a wavelength of 587.6 nm, a refractive index at a temperature of 20 ° C. of 1.6 or more, and an index of the wavelength dependence of the refractive index. A high refractive index and high dispersion resin material having an Abbe number of 30 or less is selected. The other material is a low refractive index and low dispersion material having a refractive index of about 1.5 and an Abbe number of about 50 to 60 under the same conditions.

本実施形態によれば、撮像カメラ7を指示計器2,3の中央部に配置することができ、車両用計器装置1の美観が向上する。また、撮像カメラ7のレンズ7a〜7dの光軸が、撮像カメラ7のターゲットである車両運転者の顔面へ向かっているため、良質の画像データが取得し易い。また、ステアリングスポーク等による撮像範囲の制約を最小に抑えることができる。   According to this embodiment, the imaging camera 7 can be arrange | positioned in the center part of the indicator instruments 2 and 3, and the beauty | look of the vehicle instrument apparatus 1 improves. Further, since the optical axes of the lenses 7 a to 7 d of the imaging camera 7 are directed toward the face of the vehicle driver who is the target of the imaging camera 7, it is easy to obtain good quality image data. In addition, it is possible to minimize the limitation of the imaging range due to steering spokes and the like.

本発明の実施形態を示す正面図。The front view which shows embodiment of this invention. 同上実施形態を示す断面図。Sectional drawing which shows embodiment same as the above. 同上実施形態を示すターゲットの距離計算のための模式図。The schematic diagram for target distance calculation which shows embodiment same as the above.

符号の説明Explanation of symbols

4 表示板
5 指針
6 指針駆動手段
7 撮像カメラ
7a レンズ(光学部材)
7b レンズ(光学部材)
7c レンズ(光学部材)
7d レンズ(光学部材)
7f 保持部材
4 Display board 5 Pointer 6 Pointer drive means 7 Imaging camera 7a Lens (optical member)
7b Lens (optical member)
7c Lens (optical member)
7d lens (optical member)
7f Holding member

Claims (5)

表示板と、前記表示板を指示する指針と、前記指針を回動させる指針駆動手段と、前記指針の回動軸上に配設された光学部材を有する撮像カメラと、を備えたことを特徴とする車両用計器装置。   A display plate, a pointer for indicating the display plate, pointer drive means for rotating the pointer, and an imaging camera having an optical member disposed on a rotation shaft of the pointer. A vehicle instrument device. 前記撮像カメラは、前記光学部材を保持する保持部材を有することを特徴とする請求項1に記載の車両用計器装置。   The vehicular instrument device according to claim 1, wherein the imaging camera includes a holding member that holds the optical member. 前記指針は、前記撮像カメラの前記保持部材に沿って回動することを特徴とする請求項2に記載の車両用計器装置。   The vehicular instrument device according to claim 2, wherein the pointer rotates along the holding member of the imaging camera. 複数の前記撮像カメラを所定間隔にて配置したことを特徴とする請求項1に記載の車両用計器装置。   The vehicle instrument device according to claim 1, wherein a plurality of the imaging cameras are arranged at a predetermined interval. 前記撮像カメラから出力された撮像データに基づいて撮像対象の位置を検出することを特徴とする請求項4に記載の車両用計器装置。   The vehicle instrument device according to claim 4, wherein the position of the imaging target is detected based on imaging data output from the imaging camera.
JP2008277632A 2008-10-29 2008-10-29 Meter device for vehicle Pending JP2010105461A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019017158A1 (en) * 2017-07-21 2019-01-24 株式会社デンソー Imaging device and vehicular display device
WO2019017157A1 (en) * 2017-07-19 2019-01-24 株式会社デンソー Imaging device and vehicular display device
GB2567453A (en) * 2017-10-12 2019-04-17 Continental Automotive Gmbh An imaging device arranged within an instrument of an cluster
GB2580023A (en) * 2018-12-19 2020-07-15 Continental Automotive Gmbh A rotary knob assembly for vehicle and a vehicle comprising the same

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019017157A1 (en) * 2017-07-19 2019-01-24 株式会社デンソー Imaging device and vehicular display device
JP2019018751A (en) * 2017-07-19 2019-02-07 株式会社デンソー Imaging device and display device for vehicle
CN110891827A (en) * 2017-07-19 2020-03-17 株式会社电装 Imaging device and display device for vehicle
US11178318B2 (en) * 2017-07-19 2021-11-16 Denso Corporation Imaging device and vehicular display device
CN110891827B (en) * 2017-07-19 2022-11-22 株式会社电装 Imaging device and display device for vehicle
WO2019017158A1 (en) * 2017-07-21 2019-01-24 株式会社デンソー Imaging device and vehicular display device
JP2019023003A (en) * 2017-07-21 2019-02-14 株式会社デンソー Imaging device and vehicular display device
CN110914113A (en) * 2017-07-21 2020-03-24 株式会社电装 Imaging device and display device for vehicle
US11394952B2 (en) * 2017-07-21 2022-07-19 Denso Corporation Imaging device and vehicular display device
CN110914113B (en) * 2017-07-21 2023-09-01 株式会社电装 Image pickup device and display device for vehicle
GB2567453A (en) * 2017-10-12 2019-04-17 Continental Automotive Gmbh An imaging device arranged within an instrument of an cluster
GB2580023A (en) * 2018-12-19 2020-07-15 Continental Automotive Gmbh A rotary knob assembly for vehicle and a vehicle comprising the same

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