WO2018199077A1 - Antenna device - Google Patents

Antenna device Download PDF

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Publication number
WO2018199077A1
WO2018199077A1 PCT/JP2018/016575 JP2018016575W WO2018199077A1 WO 2018199077 A1 WO2018199077 A1 WO 2018199077A1 JP 2018016575 W JP2018016575 W JP 2018016575W WO 2018199077 A1 WO2018199077 A1 WO 2018199077A1
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WO
WIPO (PCT)
Prior art keywords
antenna
camera
camera body
cable
case
Prior art date
Application number
PCT/JP2018/016575
Other languages
French (fr)
Japanese (ja)
Inventor
林　健太郎
藤井　俊彦
優 清水
Original Assignee
株式会社ヨコオ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社ヨコオ filed Critical 株式会社ヨコオ
Priority to JP2019514525A priority Critical patent/JP7084917B2/en
Priority to CN201890000430.5U priority patent/CN210129575U/en
Publication of WO2018199077A1 publication Critical patent/WO2018199077A1/en

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules

Definitions

  • the present invention relates to an antenna device including a camera.
  • Patent Document 1 an in-vehicle antenna device including a camera has been proposed.
  • an object of the present invention is to provide an antenna device with a camera in which a cable wired to a vehicle is reduced in weight.
  • An antenna device includes an antenna unit having an antenna element, a camera body, and an imaging unit having a wireless output unit that wirelessly outputs an image signal obtained by the camera body.
  • the image signal obtained by the camera body can be transmitted not only to the vehicle control device but also to other devices (for example, portable terminals) that can be wirelessly connected to the wireless output unit.
  • devices for example, portable terminals
  • the imaging unit is supplied with power from the substrate of the antenna unit.
  • the wireless output unit is provided outside the antenna case that covers the antenna unit.
  • the wireless output unit can be positioned away from the antenna unit. For this reason, it becomes possible to suppress interference between the radio wave received by the antenna element and the radio wave transmitted by the wireless output unit.
  • an antenna device with a camera in which a cable wired to a vehicle is reduced in weight.
  • FIG. 3 is a top view of the antenna device according to the first embodiment in which an exterior case and an interior case are omitted. It is a rear view of the antenna apparatus of 1st Embodiment. It is a perspective view of the antenna apparatus of 2nd Embodiment. It is a side view of the antenna apparatus of 2nd Embodiment. It is a section lineblock diagram of the antenna device of a 2nd embodiment.
  • FIG. 6 is a top view of an antenna device according to a second embodiment in which an exterior case and an interior case are omitted.
  • the antenna device 1 is attached to the upper surface of a vehicle such as a roof 100.
  • the antenna device 1 includes an antenna case 2, an antenna unit 3, an imaging unit 4, a base 5, and a mounting bracket 7 (see FIGS. 1 to 5).
  • the front-rear direction of the vehicle to which the antenna device 1 is attached will be described as the x direction, the left-right direction perpendicular to the x direction as the y direction, and the substantially vertical direction perpendicular to the x direction and the y direction as the z direction.
  • the directions indicated by the respective arrows on the xyz axis are defined as the forward direction, the right direction, and the upward direction, respectively.
  • the antenna case 2 is a member that covers members constituting the antenna device 1.
  • the antenna case 2 includes an exterior case 2a, an exterior pad 2b, and an interior case 2c.
  • the exterior case 2a and the interior case 2c have a so-called double case structure. It is desirable that the inner case 2c, the base 5, and the imaging unit 4 ensure the waterproofness of the upper surface of the base 5.
  • the outer case 2a is made of a synthetic resin having non-light-transmitting properties and radio wave transmitting properties.
  • the outer case 2a is a resin molded product formed of a synthetic resin containing polycarbonate and ASA (Acrylate Styrene Acrylonitrile).
  • ASA Acrylate Styrene Acrylonitrile
  • the exterior case 2a has, for example, a shark fin shape that is inclined so that the front side in the x direction is lower than the rear side in the x direction and both side surfaces are curved inward.
  • the exterior case 2a has an open bottom surface and covers the interior case 2c, the antenna unit 3, the imaging unit 4, and the like from above in the z direction.
  • the outer case 2a is provided with a first locking claw 2a1 for attachment to the base 5 so as to protrude downward from the inner wall in the z direction.
  • the first locking claw 2 a 1 engages with the second locking claw 5 a provided on the base 5.
  • the camera opening 21 is provided on an xz plane that passes through a substantially horizontal center on the back surface of the exterior case 2 a.
  • the camera opening 21 is disposed in a positional relationship passing on the xz plane passing through the substantially right and left center on the back surface of the exterior case 2a. For this reason, it is possible to shoot from the substantially right and left center on the back of the exterior case 2a, and it is possible to shoot a wide range of images in a state where the left and right are balanced.
  • the exterior pad 2b is an annular elastic member formed of an elastomer (Elastomer) or rubber.
  • the exterior pad 2b is fitted into the lower end periphery of the exterior case 2a, and functions as a blindfold for the gap between the lower end periphery of the exterior case 2a and the vehicle.
  • the lower surface and the rear surface of the interior case 2c are opened.
  • the interior case 2c covers the region from the portion where the antenna cable 35 of the antenna unit 3 is connected to the antenna substrate 33 to the point where the antenna cable 35 is inserted into the base opening 5b from above in the z direction.
  • the interior case 2c covers the antenna element 31 of the antenna unit 3 from above in the z direction.
  • the interior case 2c covers a region from the portion where the first camera cable 45a of the imaging unit 4 is connected to the camera substrate 46 to the time when the first camera cable 45a is inserted into the base opening 5b from above in the z direction.
  • the camera body 41 is attached to the opened portion on the back surface of the interior case 2c via the bracket 2c1 and packing.
  • the space between the interior case 2c and the camera body 41 is sealed by the bracket 2c1 and the packing.
  • the interior case 2c is made of a synthetic resin having a non-light-transmitting property and a radio wave transmitting property.
  • the interior case 2c is a resin molded product formed of a synthetic resin containing polycarbonate and ASA (Acrylate Styrene Acrylonitrile).
  • a screw hole used for screwing to the base 5 is provided at the lower end of the interior case 2c.
  • the antenna unit 3 includes an antenna element 31, an antenna substrate 33, and an antenna cable 35.
  • the antenna element 31 may be configured by a planar antenna for receiving satellite broadcasts, or may be configured by an upper element and a lower element for receiving AM / FM broadcasts.
  • the antenna element 31 is attached to the base 5 via the antenna substrate 33.
  • an antenna substrate 33 is attached to the base 5, a parasitic element is arranged on the upper surface, and an antenna element 31 including a patch antenna having a reception frequency of 2.4 GHz is mounted on the antenna substrate 33.
  • the antenna element 31 may be attached to the inner wall of the interior case 2c or the exterior case 2a.
  • the antenna cable 35 is used to supply power to an antenna amplifier provided on the antenna substrate 33 and to output a signal obtained by the antenna element 31.
  • the antenna cable 35 extending from the antenna substrate 33 extends downward in the z direction of the roof 100 through the base opening 5b and the roof opening 101.
  • the imaging unit 4 includes a camera body 41 including an imaging device such as a CMOS, a wireless output unit 42, a lens 43, a first camera cable 45 a, a camera substrate 46, and a cover 47.
  • the imaging unit 4 is disposed so that the imaging surface of the imaging element included in the camera body 41 faces the rear of the vehicle.
  • the image signal obtained by the camera body 41 may correspond to a moving image or may correspond to a still image.
  • the housing 41a of the camera body 41 is made of metal (for example, aluminum) that also serves as a shield conductor.
  • a housing 41a of the camera body 41 holds a circuit board and an image sensor. Further, the housing 41a of the camera body 41 covers other than the substantially x-direction rear side where the lens 43 is provided.
  • the wireless output unit 42 wirelessly transmits a control signal from a vehicle control device or a portable terminal to the camera body 41, or transmits an image signal obtained by the camera body 41 to a vehicle control device or a portable terminal.
  • the vehicle control device is a car navigation system.
  • a video signal line for outputting an image signal obtained by the imaging unit 4 to the outside, and a control signal from a vehicle control device or a mobile phone are transmitted to the camera body 41. There is no need to provide a cable including a control signal line.
  • the wireless communication means used in the wireless output unit 42 transmits its own identification information to the outside using a specific frequency band while the wireless communication means is turned on.
  • the specific frequency band includes at least one of a 2.4 GHz band and a 5 GHz band.
  • the wireless output unit 42 is provided in the vicinity of the camera body 41 between the outer case 2 a and the base 5.
  • the wireless output unit 42 is provided on the front side in the x direction of the camera body 41.
  • the power supply to the camera body 41 and the wireless output unit 42 is performed via the first camera cable 45a and the camera substrate 46 provided on the front side in the x direction of the camera body 41.
  • the power supply to the camera body 41 and the wireless output unit 42 may be performed via the antenna cable 35 and the antenna substrate 33 without providing the first camera cable 45a and the camera substrate 46.
  • the antenna device 1 can be miniaturized as much as the first camera cable 45a can be omitted, and the weight of the cable wired to the vehicle can be reduced.
  • the camera main body 41 and the lens 43 may be arranged at a position that does not face the camera opening 21 of the exterior case 2a.
  • a cylindrical light guide path connecting between the camera opening 21 and the lens 43 may be provided, and a light guide member such as a mirror may be provided in the light guide path.
  • the first camera cable 45a is used to supply power to the camera body 41.
  • the first camera cable 45a extends from the camera substrate 46 provided on the front side in the x direction of the camera body 41 through the interior case 2c, the base opening 5b, and the roof opening 101 to the lower side in the z direction of the roof 100.
  • the first camera cable 45a extending from the camera substrate 46 extends linearly in the substantially x direction perpendicular to the imaging surface of the image sensor and substantially in the x direction front side.
  • the first camera cable 45a is bent downward in the z direction near the upper side of the base opening 5b and extends downward in the z direction.
  • a cover 47 made of a synthetic resin having translucency is provided to protect the lens 43.
  • the cover 47 is attached to the camera body 41 in a detachable state with screws 47a or the like so as to seal the lens 43 with the camera body 41. That is, the cover 47 is disposed between the camera opening 21 and the lens 43.
  • the cover 47 is not limited to a form attached to the camera body 41, but may be a form attached to the outer case 2a (the inner wall thereof).
  • the base 5 is a metal base such as aluminum and has a substantially rectangular shape.
  • the base 5 has a second locking claw 5a that engages with the first locking claw 2a1 of the outer case 2a to lock the outer case 2a on the outer peripheral portion.
  • the base 5 is provided with a base opening 5b, and the antenna cable 35 and the first camera cable 45a extend from the antenna device 1 to the lower side in the z direction of the roof 100 through the base opening 5b.
  • the camera body 41 is connected to the base 5 via a ground plate (not shown), and the camera body 41 is grounded.
  • the camera body 41 and the base 5 may be connected to the ground via the bracket 2c1 or the first camera cable 45a.
  • the base 5 may be made of resin. In this case, it becomes easy to realize weight reduction and cost reduction compared with the form in which the base 5 is made of metal.
  • the camera body 41 is grounded by connecting a part of the first camera cable 45a to the roof 100 or connecting to a substrate (not shown) provided outside the camera body 41 using a plate (not shown). Is done.
  • the roof 100 of the vehicle is provided with a roof opening 101 through which a mounting member such as a bolt extending downward in the z direction from the base 5, the antenna cable 35, and the first camera cable 45 a pass.
  • the base 5 is fixed to the upper surface of the roof 100 by using a fitting 7 such as a capture fastener, a washer with a claw, or a nut.
  • the reception of the control signal to the camera body 41 and the transmission of the image signal from the camera body 41 are performed via the wireless output unit 42 housed in the antenna case 2. For this reason, it is not necessary to provide a video signal line inside the antenna case 2 for transmission and reception of control signals and image signals, and the first camera cable 45a can be made thinner by the amount of no video signal line. Therefore, it is possible to reduce the size of the antenna device 1 as compared with a mode in which the video signal line is included in the first camera cable 45a.
  • the vehicle control device for example, a car navigation system
  • the camera body 41 it is not necessary to provide a video signal line between the vehicle control device (for example, a car navigation system) and the camera body 41. For this reason, it can contribute to the weight reduction of the cable wired to a vehicle by the part which can omit a video signal line. In addition, the influence of the noise generated by the video signal line on the reception of the antenna element 31 of the antenna unit 3 can be reduced.
  • the first camera cable 45a includes only the power supply line. For this reason, the first camera cable 45a need not be wired from the camera body 41 to the vehicle control device. Therefore, the first camera cable 45a only needs to be wired to an electric device near the antenna device 1. For example, the first camera cable 45a is wired to the taillight. The distance between the electric device near the antenna device 1 and the camera body 41 is shorter than the distance between the vehicle control device and the camera body 41. For this reason, the cable length can also be shortened compared with the form which wires not only a power supply line but the cable containing a video signal line to the control apparatus of a vehicle.
  • the image signal obtained by the camera body 41 can be transmitted not only to the vehicle control device but also to other devices that can be wirelessly connected to the wireless output unit 42.
  • the image signal is transmitted to the mobile terminal.
  • the wireless output unit 42 is provided near the camera body 41 (front side in the x direction) between the exterior case 2a and the base 5 . However, it may be provided inside the vehicle and outside the antenna case 2 (see the second embodiment, FIGS. 6 to 9). For example, the wireless output unit 42 is provided below the base 5.
  • the wireless output unit 42 is disposed outside the antenna case 2.
  • the wireless output unit 42 and the camera board 46 are connected by a second camera cable 45b.
  • the second camera cable 45b includes a power supply line that supplies power to the camera body 41 via the wireless output unit 42, and a video signal line for transmitting and receiving control signals and image signals.
  • Power is supplied to the wireless output unit 42 from a power source connected to the wireless output unit 42.
  • power is supplied to the wireless output unit 42 from a power supply line to an electrical device near the wireless output unit 42 such as a taillight.
  • the power supply to the camera body 41 is performed from the power source connected to the wireless output unit 42 via the second camera cable 45b.
  • the wireless output unit 42 can be positioned away from the antenna unit 3. For this reason, it is possible to suppress interference between the radio wave received by the antenna element 31 and the radio wave transmitted by the wireless output unit 42.
  • the distance between the wireless output unit 42 and the camera body 41 is shorter than the distance between the vehicle control device and the camera body 41. For this reason, the cable length can be shortened as compared with a mode in which the video signal line is wired between the vehicle control device and the camera body 41, which can contribute to weight reduction of the cable wired to the vehicle.
  • the power supply to the camera body 41 may be performed via the antenna substrate 33.
  • power is supplied to the wireless output unit 42 through the antenna cable 35, the antenna substrate 33, and the second camera cable 45b. That is, a part of the power supplied to the antenna substrate 33 via the antenna cable 35 is supplied to the wireless output unit 42 via the second camera cable 45.
  • the power is supplied to the wireless output unit 42 directly from a power source (such as a taillight, to an electrical device near the wireless output unit 42) without using a device inside the antenna case 2 such as the antenna substrate 33. Supply line).
  • a power source such as a taillight, to an electrical device near the wireless output unit 42
  • the second camera cable 45 b between the camera body 41 and the wireless output unit 42 has a power supply line. It becomes unnecessary. For this reason, the 2nd camera cable 45b can be made thin compared with the case where an electric power supply line is included, and it can contribute to the weight reduction of the cable wired to a vehicle.
  • the mode in which the camera opening 21, the camera body 41, and the lens 43 are arranged in a positional relationship passing on the xz plane passing through the substantially right and left center on the back surface of the exterior case 2a has been described.
  • the camera opening 21, the camera body 41, and the lens 43 may be arranged in a positional relationship passing through an xz plane that is shifted from a substantially horizontal center on the back surface of the exterior case 2 a.
  • the camera opening 21, the camera body 41, and the lens 43 are arranged in a positional relationship passing on the xz plane that is shifted to the right in the y direction when viewed from the rear side in the x direction from the approximate left and right center on the back surface of the exterior case 2a.
  • the antenna element 31 is disposed on the front side in the x direction and the camera body 41 is disposed on the rear side in the x direction.
  • the positional relationship between the antenna element 31 and the camera body 41 is not limited to this.
  • the antenna element 31 may be disposed on the rear side in the x direction
  • the camera body 41 with the imaging surface of the image sensor facing the front of the vehicle may be disposed on the front side in the x direction.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Devices (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Camera Bodies And Camera Details Or Accessories (AREA)
  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)

Abstract

The present invention provides a camera-equipped antenna device in which a cable wired in a vehicle can be made lighter. An antenna device 1 is provided with an antenna unit 3 having an antenna element 31. The antenna device 1 is provided with an imaging unit 4 having: a camera body 41; and a wireless output unit 42 that wirelessly outputs an image signal obtained by the camera body 41. The wireless output unit 42 is provided outside an antenna case 2 that covers the antenna unit 3.

Description

アンテナ装置Antenna device
　本発明は、カメラを含むアンテナ装置に関する。 The present invention relates to an antenna device including a camera.
　従来、特許文献１のように、カメラを含む車載アンテナ装置が提案されている。 Conventionally, as in Patent Document 1, an in-vehicle antenna device including a camera has been proposed.
特開２０１６－１１６０４８号公報JP 2016-1116048 A
　しかしながら、カーナビゲーションシステムなどの車両の制御機器とカメラを接続させるために長いケーブルを用いて配線を行う必要があり、長いケーブルの分だけ車両に配線されるケーブルの重量が増す問題があった。 However, in order to connect the vehicle control device such as a car navigation system and the camera, it is necessary to perform wiring using a long cable, and there is a problem that the weight of the cable wired to the vehicle increases by the length of the long cable.
　したがって本発明の目的は、車両に配線されるケーブルを軽量化したカメラ付きアンテナ装置を提供することである。 Therefore, an object of the present invention is to provide an antenna device with a camera in which a cable wired to a vehicle is reduced in weight.
　本発明に係るアンテナ装置は、アンテナ素子を有するアンテナ部と、カメラ本体と、カメラ本体で得られた画像信号を無線で出力する無線出力部とを有する撮像部とを備える。 An antenna device according to the present invention includes an antenna unit having an antenna element, a camera body, and an imaging unit having a wireless output unit that wirelessly outputs an image signal obtained by the camera body.
　車両の制御機器（例えば、カーナビゲーションシステム）とカメラ本体の間に映像信号線を設ける必要が無くなる。このため、映像信号線を省略出来る分だけ車両に配線されるケーブルの軽量化に貢献出来る。
　また、映像信号線が発するノイズによるアンテナ素子の受信への影響を少なくすることが出来る。 There is no need to provide a video signal line between a vehicle control device (for example, a car navigation system) and the camera body. For this reason, it can contribute to the weight reduction of the cable wired to a vehicle by the part which can omit a video signal line.
In addition, it is possible to reduce the influence of the noise generated by the video signal line on the reception of the antenna element.
　カメラ本体で得られた画像信号は、車両の制御機器だけでなく、無線出力部と無線接続可能な他の機器（例えば、携帯端末）に送信することも可能になる。 The image signal obtained by the camera body can be transmitted not only to the vehicle control device but also to other devices (for example, portable terminals) that can be wirelessly connected to the wireless output unit.
　好ましくは、撮像部は、アンテナ部の基板から電力供給される。 Preferably, the imaging unit is supplied with power from the substrate of the antenna unit.
　さらに好ましくは、無線出力部は、アンテナ部を覆うアンテナケースの外に設けられる。 More preferably, the wireless output unit is provided outside the antenna case that covers the antenna unit.
　無線出力部をアンテナ部から離れて位置させることが出来る。このため、アンテナ素子で受信する電波と無線出力部が発信する電波との干渉を抑制することが可能になる。 The wireless output unit can be positioned away from the antenna unit. For this reason, it becomes possible to suppress interference between the radio wave received by the antenna element and the radio wave transmitted by the wireless output unit.
　以上のように本発明によれば、車両に配線されるケーブルを軽量化したカメラ付きアンテナ装置を提供することができる。 As described above, according to the present invention, it is possible to provide an antenna device with a camera in which a cable wired to a vehicle is reduced in weight.
第１実施形態のアンテナ装置の斜視図である。It is a perspective view of the antenna device of a 1st embodiment. 第１実施形態のアンテナ装置の側面図である。It is a side view of the antenna device of a 1st embodiment. 第１実施形態のアンテナ装置の断面構成図である。It is a section lineblock diagram of the antenna device of a 1st embodiment. 第１実施形態のアンテナ装置であって外装ケースと内装ケースを省略したものの上面図である。FIG. 3 is a top view of the antenna device according to the first embodiment in which an exterior case and an interior case are omitted. 第１実施形態のアンテナ装置の背面図である。It is a rear view of the antenna apparatus of 1st Embodiment. 第２実施形態のアンテナ装置の斜視図である。It is a perspective view of the antenna apparatus of 2nd Embodiment. 第２実施形態のアンテナ装置の側面図である。It is a side view of the antenna apparatus of 2nd Embodiment. 第２実施形態のアンテナ装置の断面構成図である。It is a section lineblock diagram of the antenna device of a 2nd embodiment. 第２実施形態のアンテナ装置であって外装ケースと内装ケースを省略したものの上面図である。FIG. 6 is a top view of an antenna device according to a second embodiment in which an exterior case and an interior case are omitted.
　以下、実施形態について、図を用いて説明する。
　なお、実施形態は、以下の実施形態に限られるものではない。また、一つの実施形態に記載した内容は、原則として他の実施形態にも同様に適用される。また、各実施形態及び各変形例は、適宜組み合わせることが出来る。 Hereinafter, embodiments will be described with reference to the drawings.
Note that the embodiments are not limited to the following embodiments. In addition, the contents described in one embodiment can be applied to other embodiments in principle as well. Moreover, each embodiment and each modification can be combined suitably.
　（第1実施形態）
　第１実施形態のアンテナ装置１は、ルーフ１００など車両の上面に取り付けられる。アンテナ装置１は、アンテナケース２、アンテナ部３、撮像部４、ベース５、取付金具７を備える（図１～図５参照）。 (First embodiment)
The antenna device 1 according to the first embodiment is attached to the upper surface of a vehicle such as a roof 100. The antenna device 1 includes an antenna case 2, an antenna unit 3, an imaging unit 4, a base 5, and a mounting bracket 7 (see FIGS. 1 to 5).
　方向を説明するために、アンテナ装置１が取り付けられる車両の前後方向をｘ方向、ｘ方向と垂直な左右方向をｙ方向、ｘ方向とｙ方向に垂直な略鉛直方向をｚ方向として説明する。図１において、ｘｙｚ軸のそれぞれの矢印が指し示す方向をそれぞれ前方向、右方向、上方向と定義する。 In order to describe the direction, the front-rear direction of the vehicle to which the antenna device 1 is attached will be described as the x direction, the left-right direction perpendicular to the x direction as the y direction, and the substantially vertical direction perpendicular to the x direction and the y direction as the z direction. In FIG. 1, the directions indicated by the respective arrows on the xyz axis are defined as the forward direction, the right direction, and the upward direction, respectively.
　図１に示すように、アンテナケース２は、アンテナ装置１を構成する部材を覆う部材である。アンテナケース２は、外装ケース２ａ、外装パッド２ｂ、内装ケース２ｃを有する。
　外装ケース２ａと内装ケース２ｃとで、いわゆる二重ケース構造となっている。内装ケース２ｃとベース５と撮像部４とで、ベース５の上面の防水が確保されるのが望ましい。 As shown in FIG. 1, the antenna case 2 is a member that covers members constituting the antenna device 1. The antenna case 2 includes an exterior case 2a, an exterior pad 2b, and an interior case 2c.
The exterior case 2a and the interior case 2c have a so-called double case structure. It is desirable that the inner case 2c, the base 5, and the imaging unit 4 ensure the waterproofness of the upper surface of the base 5.
　外装ケース２ａは、非透光性と電波透過性を有する合成樹脂製である。例えば、外装ケース２ａは、ポリカーボネート（Polycarbonate）とＡＳＡ（Acrylate Styrene Acrylonitrile）を含む合成樹脂などで形成された樹脂成型品である。図２に示すように、外装ケース２ａは、例えば、ｘ方向前側がｘ方向後側よりも低くなるように傾斜し、両側面が内側に湾曲したシャークフィン形状を有する。
　外装ケース２ａは、下面が開口し、内装ケース２ｃ、アンテナ部３、撮像部４などを、ｚ方向上方から覆う。 The outer case 2a is made of a synthetic resin having non-light-transmitting properties and radio wave transmitting properties. For example, the outer case 2a is a resin molded product formed of a synthetic resin containing polycarbonate and ASA (Acrylate Styrene Acrylonitrile). As shown in FIG. 2, the exterior case 2a has, for example, a shark fin shape that is inclined so that the front side in the x direction is lower than the rear side in the x direction and both side surfaces are curved inward.
The exterior case 2a has an open bottom surface and covers the interior case 2c, the antenna unit 3, the imaging unit 4, and the like from above in the z direction.
　図３に示すように、外装ケース２ａには、内壁からｚ方向下方に突出するように、ベース５への取り付け用の第１係止爪２ａ１が設けられる。外装ケース２ａをベース５に固定する際に、第１係止爪２ａ１は、ベース５に設けられた第２係止爪５ａと係合する。 As shown in FIG. 3, the outer case 2a is provided with a first locking claw 2a1 for attachment to the base 5 so as to protrude downward from the inner wall in the z direction. When the exterior case 2 a is fixed to the base 5, the first locking claw 2 a 1 engages with the second locking claw 5 a provided on the base 5.
　外装ケース２ａの背面には、カメラ用開口２１が設けられる。
　外装ケース２ａの背面には、カメラ用開口２１が、後述するカメラ本体４１のレンズ４３及びその近傍を覆わないように形成される。このため、カメラ用開口２１を介してレンズ４３に光を入射させることができる。その結果、撮像部４は、車両の後方を撮影することができる。 A camera opening 21 is provided on the back surface of the exterior case 2a.
On the back surface of the exterior case 2a, a camera opening 21 is formed so as not to cover a lens 43 of the camera body 41, which will be described later, and the vicinity thereof. For this reason, light can be incident on the lens 43 through the camera opening 21. As a result, the imaging unit 4 can capture the rear of the vehicle.
　図５に示すように、カメラ用開口２１は、外装ケース２ａの背面における左右略中心を通るｘｚ平面上に設けられる。
　カメラ用開口２１が、外装ケース２ａの背面における左右略中心を通るｘｚ平面上を通る位置関係に配置される。このため、外装ケース２ａの背面における左右略中心から撮影が可能になり、左右のバランスが取れた状態で広範囲の画像を撮影することが可能になる。
　また、カメラ用開口２１が、外装ケース２ａの背面における左右略中心からずれたｘｚ平面上を通る位置関係に配置される形態に比べて、外装ケース２ａの背面における左右略中心を通るｘｚ平面上にカメラ本体４１など大きな部材を配置出来る。このため、アンテナ装置１を低背化しやすい。 As shown in FIG. 5, the camera opening 21 is provided on an xz plane that passes through a substantially horizontal center on the back surface of the exterior case 2 a.
The camera opening 21 is disposed in a positional relationship passing on the xz plane passing through the substantially right and left center on the back surface of the exterior case 2a. For this reason, it is possible to shoot from the substantially right and left center on the back of the exterior case 2a, and it is possible to shoot a wide range of images in a state where the left and right are balanced.
Further, in comparison with the mode in which the camera opening 21 is disposed in a positional relationship passing through the xz plane shifted from the left and right approximate center on the back surface of the exterior case 2a, A large member such as the camera body 41 can be arranged on the front. For this reason, it is easy to reduce the height of the antenna device 1.
　図４に示すように、外装パッド２ｂは、エラストマー（Elastomer）やゴムなどで形成された環状の弾性部材である。外装パッド２ｂは、外装ケース２ａの下端周縁部に嵌入され、外装ケース２ａの下端周縁部と車両との間の隙間の目隠しとして機能する。 As shown in FIG. 4, the exterior pad 2b is an annular elastic member formed of an elastomer (Elastomer) or rubber. The exterior pad 2b is fitted into the lower end periphery of the exterior case 2a, and functions as a blindfold for the gap between the lower end periphery of the exterior case 2a and the vehicle.
　内装ケース２ｃは、下面と背面が開口する。
　内装ケース２ｃは、アンテナ部３のアンテナケーブル３５がアンテナ基板３３に接続する部分からアンテナケーブル３５がベース開口５ｂに挿入されるまでの領域を、ｚ方向上方から覆う。
　また、内装ケース２ｃは、アンテナ部３のアンテナ素子３１を、ｚ方向上方から覆う。
　さらには、内装ケース２ｃは、撮像部４の第１カメラケーブル４５ａがカメラ基板４６に接続する部分から第１カメラケーブル４５ａがベース開口５ｂに挿入されるまでの領域を、ｚ方向上方から覆う。 The lower surface and the rear surface of the interior case 2c are opened.
The interior case 2c covers the region from the portion where the antenna cable 35 of the antenna unit 3 is connected to the antenna substrate 33 to the point where the antenna cable 35 is inserted into the base opening 5b from above in the z direction.
The interior case 2c covers the antenna element 31 of the antenna unit 3 from above in the z direction.
Furthermore, the interior case 2c covers a region from the portion where the first camera cable 45a of the imaging unit 4 is connected to the camera substrate 46 to the time when the first camera cable 45a is inserted into the base opening 5b from above in the z direction.
　内装ケース２ｃの背面における開口した部分には、ブラケット２ｃ１とパッキンを介して、カメラ本体４１が取り付けられる。ブラケット２ｃ１とパッキンによって、内装ケース２ｃとカメラ本体４１の間が密閉される。 The camera body 41 is attached to the opened portion on the back surface of the interior case 2c via the bracket 2c1 and packing. The space between the interior case 2c and the camera body 41 is sealed by the bracket 2c1 and the packing.
　内装ケース２ｃは、非透光性と電波透過性を有する合成樹脂製である。例えば、内装ケース２ｃは、ポリカーボネート（Polycarbonate）とＡＳＡ（Acrylate Styrene Acrylonitrile）を含む合成樹脂などで形成された樹脂成型品である。
　内装ケース２ｃの下端部には、ベース５とネジ止めするために使用されるネジ孔が設けられる。 The interior case 2c is made of a synthetic resin having a non-light-transmitting property and a radio wave transmitting property. For example, the interior case 2c is a resin molded product formed of a synthetic resin containing polycarbonate and ASA (Acrylate Styrene Acrylonitrile).
A screw hole used for screwing to the base 5 is provided at the lower end of the interior case 2c.
　アンテナ部３は、アンテナ素子３１、アンテナ基板３３、アンテナケーブル３５を有する。 The antenna unit 3 includes an antenna element 31, an antenna substrate 33, and an antenna cable 35.
　アンテナ素子３１は、衛星放送受信用の平面アンテナなどで構成される形態であってもよいし、ＡＭ／ＦＭ放送の受信用に上部エレメントと下部エレメントとで構成される形態であってもよい。アンテナ素子３１は、アンテナ基板３３を介してベース５に取り付けられる。
　第１実施形態では、ベース５にアンテナ基板３３が取り付けられ、無給電素子が上面に配置され、受信周波数が２．４ＧＨｚであるパッチアンテナを含むアンテナ素子３１がアンテナ基板３３に実装される形態を説明する。しかしながら、アンテナ素子３１は、内装ケース２ｃ若しくは外装ケース２ａの内壁に取り付けられる形態であってもよい。 The antenna element 31 may be configured by a planar antenna for receiving satellite broadcasts, or may be configured by an upper element and a lower element for receiving AM / FM broadcasts. The antenna element 31 is attached to the base 5 via the antenna substrate 33.
In the first embodiment, an antenna substrate 33 is attached to the base 5, a parasitic element is arranged on the upper surface, and an antenna element 31 including a patch antenna having a reception frequency of 2.4 GHz is mounted on the antenna substrate 33. explain. However, the antenna element 31 may be attached to the inner wall of the interior case 2c or the exterior case 2a.
　アンテナケーブル３５は、アンテナ基板３３に設けられたアンテナアンプに電力を供給したり、アンテナ素子３１で得られた信号を出力したりするために使用される。
　アンテナ基板３３から延びるアンテナケーブル３５は、ベース開口５ｂ、ルーフ開口１０１を通って、ルーフ１００のｚ方向下方に延びる。 The antenna cable 35 is used to supply power to an antenna amplifier provided on the antenna substrate 33 and to output a signal obtained by the antenna element 31.
The antenna cable 35 extending from the antenna substrate 33 extends downward in the z direction of the roof 100 through the base opening 5b and the roof opening 101.
　撮像部４は、ＣＭＯＳなどの撮像素子を含むカメラ本体４１、無線出力部４２、レンズ４３、第１カメラケーブル４５ａ、カメラ基板４６、カバー４７を有する。
　撮像部４は、カメラ本体４１に含まれる撮像素子の撮像面が車両の後方を向くように配置される。
　カメラ本体４１で得られる画像信号は、動画像に対応するものであっても静止画像に対応するものであってもよい。
　カメラ本体４１の筐体４１ａは、シールド導体を兼ねた金属（例えば、アルミニウム）で構成される。
　カメラ本体４１の筐体４１ａは、回路基板や撮像素子を保持する。
　また、カメラ本体４１の筐体４１ａは、レンズ４３が設けられる略ｘ方向後側以外を覆う。 The imaging unit 4 includes a camera body 41 including an imaging device such as a CMOS, a wireless output unit 42, a lens 43, a first camera cable 45 a, a camera substrate 46, and a cover 47.
The imaging unit 4 is disposed so that the imaging surface of the imaging element included in the camera body 41 faces the rear of the vehicle.
The image signal obtained by the camera body 41 may correspond to a moving image or may correspond to a still image.
The housing 41a of the camera body 41 is made of metal (for example, aluminum) that also serves as a shield conductor.
A housing 41a of the camera body 41 holds a circuit board and an image sensor.
Further, the housing 41a of the camera body 41 covers other than the substantially x-direction rear side where the lens 43 is provided.
　無線出力部４２は、無線で、車両の制御機器や携帯端末からの制御信号をカメラ本体４１に送信したり、カメラ本体４１で得られた画像信号を車両の制御機器や携帯端末に送信したりする。例えば、車両の制御機器は、カーナビゲーションシステムである。
　このため、第１実施形態では、撮像部４で得られた画像信号を外部に出力するための映像信号線や、車両の制御機器や携帯電話からの制御信号をカメラ本体４１へ送信するための制御信号線を含むケーブルを設ける必要はない。
　無線出力部４２で用いられる無線通信手段は、無線通信手段をオン状態にしている間、特定の周波数帯を使って、外部に自身の識別情報を発信するもので、IEEE802.15.1（Bluetooth（登録商標））や、IEEE802.11（無線LAN）などが考えられる。例えば、特定の周波数帯は、２．４ＧＨｚ帯と５ＧＨｚ帯の少なくとも一方を含む。
　無線出力部４２は、外装ケース２ａとベース５の間で、カメラ本体４１の近傍に設けられる。例えば、無線出力部４２は、カメラ本体４１のｘ方向前側に設けられる。 The wireless output unit 42 wirelessly transmits a control signal from a vehicle control device or a portable terminal to the camera body 41, or transmits an image signal obtained by the camera body 41 to a vehicle control device or a portable terminal. To do. For example, the vehicle control device is a car navigation system.
For this reason, in the first embodiment, a video signal line for outputting an image signal obtained by the imaging unit 4 to the outside, and a control signal from a vehicle control device or a mobile phone are transmitted to the camera body 41. There is no need to provide a cable including a control signal line.
The wireless communication means used in the wireless output unit 42 transmits its own identification information to the outside using a specific frequency band while the wireless communication means is turned on. IEEE802.15.1 (Bluetooth (registered) Trademark)) and IEEE802.11 (wireless LAN). For example, the specific frequency band includes at least one of a 2.4 GHz band and a 5 GHz band.
The wireless output unit 42 is provided in the vicinity of the camera body 41 between the outer case 2 a and the base 5. For example, the wireless output unit 42 is provided on the front side in the x direction of the camera body 41.
　カメラ本体４１や無線出力部４２への電力供給は、第１カメラケーブル４５ａとカメラ本体４１のｘ方向前側に設けられたカメラ基板４６を経由して行われる。
　なお、第１カメラケーブル４５ａやカメラ基板４６を設けずに、カメラ本体４１や無線出力部４２への電力供給が、アンテナケーブル３５とアンテナ基板３３を経由して行われる形態であってもよい。
　この場合、第１カメラケーブル４５ａが省略出来る分だけ、アンテナ装置１を小型化出来るし、車両に配線されるケーブルの軽量化にも貢献出来る。 The power supply to the camera body 41 and the wireless output unit 42 is performed via the first camera cable 45a and the camera substrate 46 provided on the front side in the x direction of the camera body 41.
The power supply to the camera body 41 and the wireless output unit 42 may be performed via the antenna cable 35 and the antenna substrate 33 without providing the first camera cable 45a and the camera substrate 46.
In this case, the antenna device 1 can be miniaturized as much as the first camera cable 45a can be omitted, and the weight of the cable wired to the vehicle can be reduced.
　カメラ本体４１の略ｘ方向後側には、撮像素子の撮像面と対向するようにレンズ４３が設けられる。
　カメラ用開口２１を介して、カメラ本体４１のレンズ４３にカメラ用開口２１よりも後方からの光が入射する。
　カメラ本体４１とレンズ４３は、外装ケース２ａのカメラ用開口２１と対向する位置に配置される。
　すなわち、カメラ本体４１とレンズ４３は、外装ケース２ａの背面における左右略中心を通るｘｚ平面上で且つカメラ用開口２１と同じ高さの位置になるように、配置される。
　カメラ用開口２１、カメラ本体４１、及びレンズ４３が、いずれも外装ケース２ａの背面における左右略中心を通るｘｚ平面上を通り、略同じ高さの位置関係に配置される。このため、カメラ用開口２１からレンズ４３に光を導く導光路を設ける必要がなく、必要最小限の大きさでアンテナ装置１に撮像部４を構成することが可能になる。 A lens 43 is provided on the rear side of the camera body 41 in the substantially x direction so as to face the imaging surface of the imaging device.
Light from behind the camera opening 21 enters the lens 43 of the camera body 41 via the camera opening 21.
The camera body 41 and the lens 43 are disposed at a position facing the camera opening 21 of the exterior case 2a.
That is, the camera body 41 and the lens 43 are arranged so as to be positioned at the same height as the camera opening 21 on the xz plane passing through the substantially right and left centers on the back surface of the exterior case 2a.
The camera opening 21, the camera body 41, and the lens 43 are all arranged in a positional relationship of substantially the same height through the xz plane passing through the substantially right and left centers on the back surface of the exterior case 2 a. For this reason, it is not necessary to provide a light guide for guiding light from the camera opening 21 to the lens 43, and the imaging unit 4 can be configured in the antenna device 1 with a minimum size.
　ただし、カメラ本体４１とレンズ４３が、外装ケース２ａのカメラ用開口２１と対向しない位置に配置される形態であってもよい。
　この場合には、カメラ用開口２１とレンズ４３の間を連結する筒状の導光路が設けられ、導光路の中にミラーなどの導光部材が設けられる形態であってもよい。
　これによって、アンテナ装置１内におけるカメラ本体４１などの配置の自由度を高めることが出来る。 However, the camera main body 41 and the lens 43 may be arranged at a position that does not face the camera opening 21 of the exterior case 2a.
In this case, a cylindrical light guide path connecting between the camera opening 21 and the lens 43 may be provided, and a light guide member such as a mirror may be provided in the light guide path.
Thereby, the freedom degree of arrangement | positioning of the camera main body 41 etc. in the antenna apparatus 1 can be raised.
　第１カメラケーブル４５ａは、カメラ本体４１に電力を供給するために使用される。第１カメラケーブル４５ａは、カメラ本体４１のｘ方向前側に設けられたカメラ基板４６から、内装ケース２ｃ、ベース開口５ｂ、ルーフ開口１０１を通って、ルーフ１００のｚ方向下方に延びる。 The first camera cable 45a is used to supply power to the camera body 41. The first camera cable 45a extends from the camera substrate 46 provided on the front side in the x direction of the camera body 41 through the interior case 2c, the base opening 5b, and the roof opening 101 to the lower side in the z direction of the roof 100.
　カメラ基板４６から延びる第１カメラケーブル４５ａは、撮像素子の撮像面に垂直な略ｘ方向で且つ略ｘ方向前側に直線的に延びる。
　また、第１カメラケーブル４５ａは、ベース開口５ｂの上方近傍でｚ方向下側に折り曲げられてｚ方向下側に延びる。 The first camera cable 45a extending from the camera substrate 46 extends linearly in the substantially x direction perpendicular to the imaging surface of the image sensor and substantially in the x direction front side.
The first camera cable 45a is bent downward in the z direction near the upper side of the base opening 5b and extends downward in the z direction.
　レンズ４３の略ｘ方向後側と側面を覆う領域には、レンズ４３の保護のため、透光性を有する合成樹脂で形成されたカバー４７が設けられる。
　カバー４７は、カメラ本体４１とでレンズ４３を密閉するように、カメラ本体４１にネジ４７ａなどで着脱可能な状態で取り付けられる。
　すなわち、カメラ用開口２１とレンズ４３の間には、カバー４７が配置される。 In a region covering the rear side and the side surface of the lens 43 in the substantially x direction, a cover 47 made of a synthetic resin having translucency is provided to protect the lens 43.
The cover 47 is attached to the camera body 41 in a detachable state with screws 47a or the like so as to seal the lens 43 with the camera body 41.
That is, the cover 47 is disposed between the camera opening 21 and the lens 43.
　なお、レンズ４３がカバー４７で覆われる形態を説明するが、カメラ用開口２１がカバー４７で覆われる形態や、カメラ用開口２１とレンズ４３がカバー４７で覆われる形態であってもよい。
　また、カバー４７は、カメラ本体４１に取り付けられる形態に限らず、外装ケース２ａ（の内壁など）に取り付けられる形態であってもよい。 In addition, although the form in which the lens 43 is covered with the cover 47 is described, the form in which the camera opening 21 is covered with the cover 47 or the form in which the camera opening 21 and the lens 43 are covered with the cover 47 may be used.
Further, the cover 47 is not limited to a form attached to the camera body 41, but may be a form attached to the outer case 2a (the inner wall thereof).
　ベース５は、アルミニウム等の金属製ベースで、略矩形形状を有する。
　ベース５は、外装ケース２ａの第１係止爪２ａ１と係合して外装ケース２ａを係止する第２係止爪５ａを外周部に有する。 The base 5 is a metal base such as aluminum and has a substantially rectangular shape.
The base 5 has a second locking claw 5a that engages with the first locking claw 2a1 of the outer case 2a to lock the outer case 2a on the outer peripheral portion.
　ベース５の上面には、アンテナ基板３３と内装ケース２ｃが取り付けられる。
　ベース５には、ベース開口５ｂが設けられ、アンテナケーブル３５と第１カメラケーブル４５ａは、ベース開口５ｂを通って、アンテナ装置１からルーフ１００のｚ方向下側に延びる。 An antenna substrate 33 and an interior case 2c are attached to the upper surface of the base 5.
The base 5 is provided with a base opening 5b, and the antenna cable 35 and the first camera cable 45a extend from the antenna device 1 to the lower side in the z direction of the roof 100 through the base opening 5b.
　カメラ本体４１は、不図示のアースプレートを介して、ベース５に接続され、カメラ本体４１が接地される。
　カメラ本体４１とベース５とのアース接続は、ブラケット２ｃ１若しくは第１カメラケーブル４５ａを介して行われる形態であってもよい。 The camera body 41 is connected to the base 5 via a ground plate (not shown), and the camera body 41 is grounded.
The camera body 41 and the base 5 may be connected to the ground via the bracket 2c1 or the first camera cable 45a.
　なお、ベース５が樹脂で構成される形態であってもよい。
　この場合、ベース５が金属で構成される形態に比べて、軽量化や低コスト化を実現しやすくなる。
　また、カメラ本体４１の接地は、第１カメラケーブル４５ａの一部をルーフ１００に接続する、若しくは、プレート（不図示）を使ってカメラ本体４１の外部に設けられた基板（不図示）と接続することにより行われる。 The base 5 may be made of resin.
In this case, it becomes easy to realize weight reduction and cost reduction compared with the form in which the base 5 is made of metal.
The camera body 41 is grounded by connecting a part of the first camera cable 45a to the roof 100 or connecting to a substrate (not shown) provided outside the camera body 41 using a plate (not shown). Is done.
　車両のルーフ１００には、ベース５からｚ方向下方向に延びるボルトなど取付部材とアンテナケーブル３５と第１カメラケーブル４５ａが通るルーフ開口１０１が設けられる。
　ベース５のルーフ１００の上面への固定は、キャプチャーファスナーや爪付きワッシャーやナットなどの取付金具７を使って行われる。 The roof 100 of the vehicle is provided with a roof opening 101 through which a mounting member such as a bolt extending downward in the z direction from the base 5, the antenna cable 35, and the first camera cable 45 a pass.
The base 5 is fixed to the upper surface of the roof 100 by using a fitting 7 such as a capture fastener, a washer with a claw, or a nut.
　第１実施形態では、カメラ本体４１への制御信号の受信やカメラ本体４１からの画像信号の送信は、アンテナケース２の内部に収納された無線出力部４２を介して、行われる。
　このため、制御信号や画像信号の送受信用に映像信号線をアンテナケース２の内部に設ける必要が無く、映像信号線が無い分だけ第１カメラケーブル４５ａを細く出来る。従って、映像信号線が第１カメラケーブル４５ａに含まれる形態に比べてアンテナ装置１を小型化することが可能になる。 In the first embodiment, the reception of the control signal to the camera body 41 and the transmission of the image signal from the camera body 41 are performed via the wireless output unit 42 housed in the antenna case 2.
For this reason, it is not necessary to provide a video signal line inside the antenna case 2 for transmission and reception of control signals and image signals, and the first camera cable 45a can be made thinner by the amount of no video signal line. Therefore, it is possible to reduce the size of the antenna device 1 as compared with a mode in which the video signal line is included in the first camera cable 45a.
　また、車両の制御機器（例えば、カーナビゲーションシステム）とカメラ本体４１の間に映像信号線を設ける必要が無くなる。このため、映像信号線を省略出来る分だけ車両に配線されるケーブルの軽量化に貢献出来る。
　また、映像信号線が発するノイズによるアンテナ部３のアンテナ素子３１の受信への影響を少なくすることが出来る。 Further, it is not necessary to provide a video signal line between the vehicle control device (for example, a car navigation system) and the camera body 41. For this reason, it can contribute to the weight reduction of the cable wired to a vehicle by the part which can omit a video signal line.
In addition, the influence of the noise generated by the video signal line on the reception of the antenna element 31 of the antenna unit 3 can be reduced.
　第１実施形態では、第１カメラケーブル４５ａには電力供給線だけが含まれる。このため、第１カメラケーブル４５ａは、カメラ本体４１から車両の制御機器まで配線する必要がない。したがって、第１カメラケーブル４５ａは、アンテナ装置１の近くにある電気機器まで配線されるだけで済む。例えば、第１カメラケーブル４５ａは、テールライトまで配線される。
　アンテナ装置１の近くにある電気機器とカメラ本体４１の間の距離は、車両の制御機器とカメラ本体４１の間の距離よりも短い。このため、電力供給線だけでなく映像信号線を含むケーブルを車両の制御機器まで配線する形態に比べて、ケーブル長を短くすることも出来る。 In the first embodiment, the first camera cable 45a includes only the power supply line. For this reason, the first camera cable 45a need not be wired from the camera body 41 to the vehicle control device. Therefore, the first camera cable 45a only needs to be wired to an electric device near the antenna device 1. For example, the first camera cable 45a is wired to the taillight.
The distance between the electric device near the antenna device 1 and the camera body 41 is shorter than the distance between the vehicle control device and the camera body 41. For this reason, the cable length can also be shortened compared with the form which wires not only a power supply line but the cable containing a video signal line to the control apparatus of a vehicle.
　また、カメラ本体４１で得られた画像信号は、車両の制御機器だけでなく、無線出力部４２と無線接続可能な他の機器に送信することも可能になる。例えば、画像信号は、携帯端末に送信される。 Also, the image signal obtained by the camera body 41 can be transmitted not only to the vehicle control device but also to other devices that can be wirelessly connected to the wireless output unit 42. For example, the image signal is transmitted to the mobile terminal.
　（第２実施形態）
　第１実施形態では、無線出力部４２が、外装ケース２ａとベース５の間で、カメラ本体４１の近傍（ｘ方向前側）に設けられる形態を説明した。しかしながら、車両の内部であってアンテナケース２の外部に設けられる形態であってもよい（第２実施形態、図６～図９参照）。例えば、無線出力部４２は、ベース５よりも下に設けられる。 (Second Embodiment)
In the first embodiment, the configuration in which the wireless output unit 42 is provided near the camera body 41 (front side in the x direction) between the exterior case 2a and the base 5 has been described. However, it may be provided inside the vehicle and outside the antenna case 2 (see the second embodiment, FIGS. 6 to 9). For example, the wireless output unit 42 is provided below the base 5.
　第２実施形態では、無線出力部４２は、アンテナケース２の外に配置される。無線出力部４２とカメラ基板４６の間は、第２カメラケーブル４５ｂで接続される。
　第２カメラケーブル４５ｂは、無線出力部４２を介して電力をカメラ本体４１に供給する電力供給線と、制御信号と画像信号の送受信用の映像信号線を含む。
　無線出力部４２への電力供給は、無線出力部４２に接続された電源から行われる。例えば、テールライトなど無線出力部４２の近くにある電気機器への電力供給線から、無線出力部４２への電力供給が行われる。
カメラ本体４１への電力供給は、無線出力部４２に接続された電源から、第２カメラケーブル４５ｂを介して行われる。 In the second embodiment, the wireless output unit 42 is disposed outside the antenna case 2. The wireless output unit 42 and the camera board 46 are connected by a second camera cable 45b.
The second camera cable 45b includes a power supply line that supplies power to the camera body 41 via the wireless output unit 42, and a video signal line for transmitting and receiving control signals and image signals.
Power is supplied to the wireless output unit 42 from a power source connected to the wireless output unit 42. For example, power is supplied to the wireless output unit 42 from a power supply line to an electrical device near the wireless output unit 42 such as a taillight.
The power supply to the camera body 41 is performed from the power source connected to the wireless output unit 42 via the second camera cable 45b.
　第２実施形態では、無線出力部４２をアンテナ部３から離れて位置させることが出来る。このため、アンテナ素子３１で受信する電波と無線出力部４２が発信する電波との干渉を抑制することが可能になる。
　また、無線出力部４２とカメラ本体４１の間の第２カメラケーブル４５ｂに映像信号線を含める必要がある。
　しかしながら、無線出力部４２とカメラ本体４１の間の距離は、車両の制御機器とカメラ本体４１の間の距離よりも短い。
　このため、車両の制御機器とカメラ本体４１との間に映像信号線が配線される形態に比べて、ケーブル長を短くすることが出来、車両に配線されるケーブルの軽量化に貢献出来る。 In the second embodiment, the wireless output unit 42 can be positioned away from the antenna unit 3. For this reason, it is possible to suppress interference between the radio wave received by the antenna element 31 and the radio wave transmitted by the wireless output unit 42.
In addition, it is necessary to include a video signal line in the second camera cable 45b between the wireless output unit 42 and the camera body 41.
However, the distance between the wireless output unit 42 and the camera body 41 is shorter than the distance between the vehicle control device and the camera body 41.
For this reason, the cable length can be shortened as compared with a mode in which the video signal line is wired between the vehicle control device and the camera body 41, which can contribute to weight reduction of the cable wired to the vehicle.
　なお、カメラ本体４１への電力供給は、アンテナ基板３３を経由して行われる形態であってもよい。
　この場合、無線出力部４２への電力供給については、アンテナケーブル３５とアンテナ基板３３と第２カメラケーブル４５ｂを介して行われる。すなわち、アンテナケーブル３５を介してアンテナ基板３３に供給された電力の一部が、第２カメラケーブル４５を介して、無線出力部４２へ供給される。 The power supply to the camera body 41 may be performed via the antenna substrate 33.
In this case, power is supplied to the wireless output unit 42 through the antenna cable 35, the antenna substrate 33, and the second camera cable 45b. That is, a part of the power supplied to the antenna substrate 33 via the antenna cable 35 is supplied to the wireless output unit 42 via the second camera cable 45.
　ただし、無線出力部４２への電力供給は、アンテナ基板３３などのアンテナケース２の内部の機器を介さずに、直接的に電源（テールライトなど無線出力部４２の近くにある電気機器への電力供給線）から行われてもよい。
　無線出力部４２への電力供給がアンテナケース２の内部の機器を介さずに電源から行われる場合には、カメラ本体４１と無線出力部４２の間の第２カメラケーブル４５ｂには電力供給線が不要となる。このため、電力供給線が含まれる場合に比べて第２カメラケーブル４５ｂを細く出来、車両に配線されるケーブルの軽量化に貢献出来る。 However, the power is supplied to the wireless output unit 42 directly from a power source (such as a taillight, to an electrical device near the wireless output unit 42) without using a device inside the antenna case 2 such as the antenna substrate 33. Supply line).
When power is supplied to the wireless output unit 42 from the power source without going through the equipment inside the antenna case 2, the second camera cable 45 b between the camera body 41 and the wireless output unit 42 has a power supply line. It becomes unnecessary. For this reason, the 2nd camera cable 45b can be made thin compared with the case where an electric power supply line is included, and it can contribute to the weight reduction of the cable wired to a vehicle.
　（その他実施形態）
　第１実施形態、第２実施形態では、カメラ用開口２１とカメラ本体４１とレンズ４３が、外装ケース２ａの背面における左右略中心を通るｘｚ平面上を通る位置関係に配置される形態を説明した。しかしながら、カメラ用開口２１とカメラ本体４１とレンズ４３が、外装ケース２ａの背面における左右略中心からずれたｘｚ平面上を通る位置関係に配置される形態であってもよい。 (Other embodiments)
In the first embodiment and the second embodiment, the mode in which the camera opening 21, the camera body 41, and the lens 43 are arranged in a positional relationship passing on the xz plane passing through the substantially right and left center on the back surface of the exterior case 2a has been described. . However, the camera opening 21, the camera body 41, and the lens 43 may be arranged in a positional relationship passing through an xz plane that is shifted from a substantially horizontal center on the back surface of the exterior case 2 a.
　例えば、カメラ用開口２１とカメラ本体４１とレンズ４３は、外装ケース２ａの背面における左右略中心からｘ方向後側から見てｙ方向右側にずれたｘｚ平面上を通る位置関係に配置される。 For example, the camera opening 21, the camera body 41, and the lens 43 are arranged in a positional relationship passing on the xz plane that is shifted to the right in the y direction when viewed from the rear side in the x direction from the approximate left and right center on the back surface of the exterior case 2a.
　これにより、ｘ方向後側から見てｙ方向左側（撮像部４が設けられていない側）に空きスペースが出来るので、空きスペースに他の部品を配置することが可能になる。 Thereby, since an empty space is created on the left side in the y direction (side where the image pickup unit 4 is not provided) when viewed from the rear side in the x direction, other components can be arranged in the empty space.
　また、第１実施形態、第２実施形態では、アンテナ素子３１がｘ方向前側に配置され、カメラ本体４１がｘ方向後側に配置される形態を説明した。しかしながら、アンテナ素子３１とカメラ本体４１の位置関係はこれに限るものではない。例えば、アンテナ素子３１がｘ方向後側に配置され、撮像素子の撮像面が車両の前方を向くカメラ本体４１がｘ方向前側に配置される形態であってもよい。 In the first and second embodiments, the antenna element 31 is disposed on the front side in the x direction and the camera body 41 is disposed on the rear side in the x direction. However, the positional relationship between the antenna element 31 and the camera body 41 is not limited to this. For example, the antenna element 31 may be disposed on the rear side in the x direction, and the camera body 41 with the imaging surface of the image sensor facing the front of the vehicle may be disposed on the front side in the x direction.
　本発明のいくつかの実施形態を説明したが、これらの実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これら実施形態やその変形は、発明の範囲や要旨に含まれると同様に、特許請求の範囲に記載された発明とその均等の範囲に含まれるものである。 Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.
　１　アンテナ装置
　２　アンテナケース
　２ａ　外装ケース
　２ａ１　第１係止爪
　２ｂ　外装パッド
　２ｃ　内装ケース
　２ｃ１　ブラケット
　２１　カメラ用開口
　３　アンテナ部
　３１　アンテナ素子
　３３　アンテナ基板
　３５　アンテナケーブル
　４　撮像部
　４１　カメラ本体
　４１ａ　カメラ本体の筐体
　４２　無線出力部
　４３　レンズ
　４５ａ　第１カメラケーブル
　４５ｂ　第２カメラケーブル
　４６　カメラ基板
　４７　カバー
　４７ａ　ネジ
　５　ベース
　５ａ　第２係止爪
　５ｂ　ベース開口
　７　取付金具
　１００　ルーフ
　１０１　ルーフ開口
  DESCRIPTION OF SYMBOLS 1 Antenna apparatus 2 Antenna case 2a Exterior case 2a1 1st latching claw 2b Exterior pad 2c Interior case 2c1 Bracket 21 Camera opening 3 Antenna part 31 Antenna element 33 Antenna board 35 Antenna cable 4 Imaging part 41 Camera body 41a Camera body case Body 42 Wireless output unit 43 Lens 45a First camera cable 45b Second camera cable 46 Camera board 47 Cover 47a Screw 5 Base 5a Second locking claw 5b Base opening 7 Mounting bracket 100 Roof 101 Roof opening

Claims (3)

  1. 　アンテナ素子を有するアンテナ部と、
    　カメラ本体と、前記カメラ本体で得られた画像信号を無線で出力する無線出力部とを有する撮像部とを備えることを特徴とするアンテナ装置。     An antenna unit having an antenna element;
    An antenna apparatus comprising: a camera body; and an imaging section having a wireless output section that wirelessly outputs an image signal obtained by the camera body.
  2. 　前記撮像部は、前記アンテナ部の基板から電力供給されることを特徴とする請求項１に記載のアンテナ装置。 The antenna apparatus according to claim 1, wherein the imaging unit is supplied with power from a substrate of the antenna unit.
  3. 　前記無線出力部は、前記アンテナ部を覆うアンテナケースの外に設けられることを特徴とする請求項１または請求項２に記載のアンテナ装置。
          The antenna device according to claim 1, wherein the wireless output unit is provided outside an antenna case that covers the antenna unit.
PCT/JP2018/016575 2017-04-25 2018-04-24 Antenna device WO2018199077A1 (en)

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Publication number Priority date Publication date Assignee Title
JPH06188760A (en) * 1992-12-22 1994-07-08 Mitsubishi Electric Corp Receiving device
US20060139454A1 (en) * 2004-12-23 2006-06-29 Trapani Carl E Method and system for vehicle-mounted recording systems
JP2012505115A (en) * 2008-10-08 2012-03-01 デルファイ・テクノロジーズ・インコーポレーテッド Integrated radar-camera sensor
JP2016070926A (en) * 2014-09-30 2016-05-09 日本電産エレシス株式会社 Radar device

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