JP2016068594A - Device for vehicle - Google Patents

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JP2016068594A
JP2016068594A JP2014196612A JP2014196612A JP2016068594A JP 2016068594 A JP2016068594 A JP 2016068594A JP 2014196612 A JP2014196612 A JP 2014196612A JP 2014196612 A JP2014196612 A JP 2014196612A JP 2016068594 A JP2016068594 A JP 2016068594A
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unit
control unit
information
communication cable
recording medium
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JP6405837B2 (en
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貴巨 長谷川
Takao Hasegawa
貴巨 長谷川
崇 橋爪
Takashi Hashizume
崇 橋爪
清人 成田
Kiyoto Narita
清人 成田
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Denso Corp
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Denso Corp
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Priority to PCT/JP2015/004260 priority patent/WO2016047039A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Traffic Control Systems (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a device for a vehicle which secures the flexibility of the installation position of an attachment portion to which a card-type information recording medium is detachably attached, and achieves improvement of noise performance.SOLUTION: A device 10 for a vehicle includes: an attachment portion 11 to which a card-type information recording medium 100 is detachably attached; a control unit 12 for conducting information writing operation and reading operation on the information recording medium 100 attached to the attachment portion 11; a conversion unit 13 for conducting information conversion processing between the information recording medium 100 attached to the attachment portion 11 and the control unit 12; a communication cable 15 connecting the conversion unit 13 with the attachment portion 11; and a communication cable 16 connecting the conversion unit 13 with the control unit 12. An information transmission distance of the communication cable 15 is shorter than an information transmission distance of the communication cable 16.SELECTED DRAWING: Figure 1

Description

本発明は、カード型の情報記録媒体が着脱可能に装着される車両用装置に関する。   The present invention relates to a vehicle apparatus to which a card type information recording medium is detachably mounted.

従来より、例えばＳＤカードといったカード型の情報記録媒体が提供されている（例えば、特許文献１参照）。そして、この種の情報記録媒体が着脱可能に装着される車両用装置においては、情報記録媒体が装着される装着部、例えばカードスロットを、ユーザがアクセスしやすい位置に設けることが求められる。また、車両用装置においては、放出するノイズを抑えるとともに外部からのノイズの影響を抑える電磁両立性、即ちＥＭＣ規定（ＥＭＣ:Electro Magnetic Compatibility）を満たすことも求められる。しかし、カード型の情報記録媒体による情報通信は、電圧レベルが比較的高電圧となる、情報通信の周波数がＦＭ周波数帯域などに干渉する、双方向通信であることから信号を弱めて通信をすることが難しい、といった特性を有する。つまり、カード型の情報記録媒体による情報通信は、ＥＭＣ規定を満たしにくい特性を有しており、従って、装着部の設置位置の自由度を確保しつつＥＭＣ規定を満たす、つまりノイズ性能の向上を図ることが困難である。   Conventionally, a card-type information recording medium such as an SD card has been provided (see, for example, Patent Document 1). In a vehicle apparatus in which this type of information recording medium is detachably mounted, it is required to provide a mounting portion on which the information recording medium is mounted, for example, a card slot, at a position where the user can easily access. In addition, in a vehicle device, it is also required to satisfy electromagnetic compatibility, that is, EMC regulations (EMC: Electro Magnetic Compatibility) that suppress noise emitted and suppress the influence of external noise. However, information communication using a card-type information recording medium communicates with a weak signal because the voltage level is relatively high, the frequency of information communication interferes with the FM frequency band, etc. It is difficult. In other words, information communication using a card-type information recording medium has a characteristic that it is difficult to satisfy the EMC regulations. Therefore, the EMC regulations are satisfied while ensuring the freedom of the installation position of the mounting portion, that is, the noise performance is improved. It is difficult to plan.

特開２００７−２９９３３８号公報JP 2007-299338 A

装着部の設置位置の自由度を確保しつつノイズ性能の向上を図るためには、例えば、情報通信の周波数を調整する、ＥＭＣ規定を満たしやすい特性を有する情報記録媒体を検査などにより選別する、といった対策が考えられる。しかし、これらの対策では、情報通信の性能低下やコストアップを招いてしまう。   In order to improve the noise performance while ensuring the degree of freedom of the installation position of the mounting part, for example, by adjusting the frequency of information communication, selecting information recording media having characteristics that easily meet the EMC regulations by inspection or the like, Such measures can be considered. However, these measures lead to a decrease in information communication performance and an increase in cost.

そこで、本発明は、カード型の情報記録媒体が着脱可能に装着される装着部の設置位置の自由度の確保とノイズ性能の向上の両立を図った車両用装置を提供する。   Therefore, the present invention provides a vehicle device that achieves both a degree of freedom in installation position of a mounting portion on which a card-type information recording medium is detachably mounted and an improvement in noise performance.

本発明に係る車両用装置によれば、装着部は、カード型の情報記録媒体が着脱可能に装着される。制御部は、装着部に装着された情報記録媒体に対し、情報の書き込み動作および読み込み動作を行う。変換部は、装着部に装着された情報記録媒体と制御部との間で情報の変換処理を行う。装着部側接続手段は、変換部と装着部を接続する。制御部側接続手段は、変換部と制御部を接続する。そして、車両用装置によれば、装着部側接続手段による情報の伝送距離が制御部側接続手段による情報の伝送距離よりも短くなっている。   According to the vehicle apparatus according to the present invention, the card-type information recording medium is detachably mounted on the mounting unit. The control unit performs information writing and reading operations on the information recording medium mounted on the mounting unit. The conversion unit performs information conversion processing between the information recording medium mounted on the mounting unit and the control unit. The mounting part side connecting means connects the conversion part and the mounting part. The control unit side connection means connects the conversion unit and the control unit. And according to the apparatus for vehicles, the transmission distance of the information by the mounting part side connection means is shorter than the transmission distance of the information by the control part side connection means.

この構成によれば、ノイズが発生しやすい変換部と装着部との間の伝送距離を極力短くすることができ、ノイズ性能の向上を図ることができる。また、変換部と制御部との間の伝送距離は、変換部と装着部との間の伝送距離よりも長い範囲で適宜調整できる。そのため、装着部の設置位置を基準として、変換部と装着部との間の伝送距離および変換部と制御部との間の伝送距離を適宜調整することができる。従って、装着部の設置位置の自由度を十分に確保することができる。   According to this configuration, the transmission distance between the conversion unit and the mounting unit that are likely to generate noise can be shortened as much as possible, and noise performance can be improved. Further, the transmission distance between the conversion unit and the control unit can be appropriately adjusted in a range longer than the transmission distance between the conversion unit and the mounting unit. Therefore, it is possible to appropriately adjust the transmission distance between the conversion unit and the mounting unit and the transmission distance between the conversion unit and the control unit with reference to the installation position of the mounting unit. Therefore, a sufficient degree of freedom in the installation position of the mounting portion can be ensured.

第１実施形態に係る車両用装置の構成例を概略的に示す図The figure which shows schematically the structural example of the apparatus for vehicles which concerns on 1st Embodiment. 第２実施形態に係る車両用装置の構成例を概略的に示す図The figure which shows schematically the structural example of the apparatus for vehicles which concerns on 2nd Embodiment.

以下、車両用装置に係る複数の実施形態について図面を参照しながら説明する。なお、各実施形態において実質的に同一の要素には同一の符号を付し、説明を省略する。
（第１実施形態）
図１に例示する車両用装置１０は、装着部１１、制御部１２、変換部１３を備える。装着部１１には、カード型の情報記録媒体１００がユーザによる手動操作により着脱可能に装着される。即ち、装着部１１は、いわゆるカードスロットである。この場合、情報記録媒体１００は、いわゆるＳＤカードで構成されている。制御部１２は、装着部１１に装着された情報記録媒体１００に対し、変換部１３を介して情報の書き込み動作および読み込み動作を行う。変換部１３は、装着部１１に装着された情報記録媒体１００と制御部１２との間で伝送される情報の変換処理を行う。即ち、変換部１３は、制御部１２が情報記録媒体１００に書き込もうとする情報を当該情報記録媒体１００に適したデータ形式に変換する。また、変換部１３は、制御部１２が情報記録媒体１００から読み込もうとする情報を当該制御部１２に適したデータ形式に変換する。 Hereinafter, a plurality of embodiments according to a vehicle device will be described with reference to the drawings. In each embodiment, substantially the same elements are denoted by the same reference numerals, and description thereof is omitted.
(First embodiment)
A vehicle apparatus 10 illustrated in FIG. 1 includes a mounting unit 11, a control unit 12, and a conversion unit 13. A card-type information recording medium 100 is detachably mounted on the mounting unit 11 by a user's manual operation. That is, the mounting portion 11 is a so-called card slot. In this case, the information recording medium 100 is constituted by a so-called SD card. The control unit 12 performs an information writing operation and a reading operation on the information recording medium 100 mounted on the mounting unit 11 via the conversion unit 13. The conversion unit 13 performs conversion processing of information transmitted between the information recording medium 100 mounted on the mounting unit 11 and the control unit 12. That is, the conversion unit 13 converts information that the control unit 12 intends to write into the information recording medium 100 into a data format suitable for the information recording medium 100. Further, the conversion unit 13 converts information that the control unit 12 intends to read from the information recording medium 100 into a data format suitable for the control unit 12.

車両用装置１０は、さらに通信ケーブル１５，１６を備える。通信ケーブル１５は、装着部側接続手段の一例であり、変換部１３と装着部１１との間を間接的に接続している。この場合、通信ケーブル１５は、ＳＤカードとの通信に適したＳＤ通信ケーブルで構成されている。通信ケーブル１５を介した情報通信の周波数は、この場合、５０ＭＨｚほどである。通信ケーブル１６は、制御部側接続手段の一例であり、変換部１３と制御部１２との間を間接的に接続している。この場合、通信ケーブル１６は、ＵＳＢ通信ケーブル（ＵＳＢ:Universal Serial Bus）で構成されている。通信ケーブル１６を介した情報通信の周波数は、この場合、２４０ＭＨｚほどである。   The vehicle apparatus 10 further includes communication cables 15 and 16. The communication cable 15 is an example of a mounting unit side connection unit, and indirectly connects the conversion unit 13 and the mounting unit 11. In this case, the communication cable 15 is composed of an SD communication cable suitable for communication with an SD card. In this case, the frequency of information communication via the communication cable 15 is about 50 MHz. The communication cable 16 is an example of a control unit side connection unit, and indirectly connects the conversion unit 13 and the control unit 12. In this case, the communication cable 16 is configured by a USB communication cable (USB: Universal Serial Bus). In this case, the frequency of information communication via the communication cable 16 is about 240 MHz.

車両用装置１０は、通信ケーブル１５の長さＬａが通信ケーブル１６の長さＬｂよりも短くなっている。即ち、車両用装置１０は、通信ケーブル１５による情報の伝送距離、つまり変換部１３よりも装着部１１側における情報の伝送距離が、通信ケーブル１６による情報の伝送距離、つまり変換部１３よりも制御部１２側における情報の伝送距離よりも短くなっている。   In the vehicle device 10, the length La of the communication cable 15 is shorter than the length Lb of the communication cable 16. That is, the vehicle apparatus 10 controls the information transmission distance by the communication cable 15, that is, the information transmission distance on the mounting unit 11 side than the conversion unit 13, and the information transmission distance by the communication cable 16, that is, the control unit 13. It is shorter than the information transmission distance on the part 12 side.

車両用装置１０によれば、ノイズが発生しやすい変換部１３と装着部１１との間における情報の伝送距離を極力短くすることができ、ノイズ性能の向上を図ることができる。また、変換部１３と制御部１２との間における情報の伝送距離は、変換部１３と装着部１１との間の伝送距離よりも長い範囲で適宜調整できる。そのため、車両における装着部１１の設置位置を基準として通信ケーブル１５の長さＬａおよび通信ケーブル１６の長さＬｂをそれぞれ設定することで、変換部１３と装着部１１との間の伝送距離および変換部１３と制御部１２との間の伝送距離をそれぞれ適宜調整することができる。即ち、装着部１１の設置位置に関わらず通信ケーブル１５，１６の長さＬａ，Ｌｂを調整することができるから、装着部１１の設置位置の自由度を十分に確保することができる。   According to the vehicle device 10, the transmission distance of information between the conversion unit 13 and the mounting unit 11 that are likely to generate noise can be shortened as much as possible, and noise performance can be improved. Further, the transmission distance of information between the conversion unit 13 and the control unit 12 can be appropriately adjusted in a range longer than the transmission distance between the conversion unit 13 and the mounting unit 11. Therefore, by setting the length La of the communication cable 15 and the length Lb of the communication cable 16 based on the installation position of the mounting unit 11 in the vehicle, the transmission distance and conversion between the conversion unit 13 and the mounting unit 11 are set. The transmission distance between the unit 13 and the control unit 12 can be adjusted as appropriate. That is, since the lengths La and Lb of the communication cables 15 and 16 can be adjusted regardless of the installation position of the mounting part 11, the degree of freedom of the installation position of the mounting part 11 can be sufficiently secured.

また、車両用装置１０によれば、ノイズが発生しやすい変換部１３と装着部１１との間を接続する手段として、ＳＤカードとの通信に適したＳＤ通信ケーブル１５を採用している。これにより、ノイズ性能の一層の向上を図ることができる。   Moreover, according to the vehicle apparatus 10, the SD communication cable 15 suitable for communication with the SD card is adopted as means for connecting between the conversion unit 13 and the mounting unit 11 that are likely to generate noise. Thereby, the noise performance can be further improved.

また、車両用装置１０によれば、変換部１３と制御部１２との間を接続する手段として、ＵＳＢ通信ケーブル１６を採用している。ＵＳＢ通信は、通信速度が速い、一対の信号線によりデータを伝送するいわゆる差動通信であることから耐ノイズ性を有する、電圧レベルが例えば１Ｖ程度と比較的低い、といった特性を有する。即ち、ＵＳＢ通信は、ＥＭＣ規定を満たしやすい特性を有する。車両用装置１０によれば、このようなＵＳＢ通信ケーブル１６による情報の伝送距離を、ノイズが発生しやすい変換部１３と装着部１１との間における情報の伝送距離よりも長くしている。従って、装着部１１と制御部１２との間における情報の伝送路においてＥＭＣ規定を満たしやすい区間を長く確保することができ、ノイズ性能の一層の向上を図ることができる。   Further, according to the vehicle apparatus 10, the USB communication cable 16 is employed as a means for connecting the conversion unit 13 and the control unit 12. USB communication has characteristics such as a high communication speed, so-called differential communication in which data is transmitted through a pair of signal lines, noise resistance, and a relatively low voltage level of, for example, about 1V. That is, the USB communication has a characteristic that easily meets the EMC regulations. According to the vehicle device 10, the information transmission distance by the USB communication cable 16 is longer than the information transmission distance between the conversion unit 13 and the mounting unit 11 where noise is likely to occur. Therefore, it is possible to secure a long section that easily satisfies the EMC regulations in the information transmission path between the mounting section 11 and the control section 12, and to further improve the noise performance.

また、車両用装置１０によれば、変換部１３と装着部１１を接続する手段および変換部１３と制御部１２を接続する手段として、フレキシブルな通信ケーブル１５，１６を採用している。従って、装着部１１の設定位置の自由度を一層高めることができる。   Moreover, according to the apparatus 10 for vehicles, the flexible communication cables 15 and 16 are employ | adopted as a means to connect the conversion part 13 and the mounting part 11, and a means to connect the conversion part 13 and the control part 12. FIG. Therefore, the degree of freedom of the setting position of the mounting portion 11 can be further increased.

（第２実施形態）
図２に例示する車両用装置２０において、装着部２１はコネクタ２１ａを有し、変換部２３はコネクタ２３ａを有している。コネクタ２１ａ，２３ａは、装着部側接続手段の一例であり、通信ケーブルを介することなく、変換部２３と装着部２１を直接的に接続している。また、変換部２３と制御部２２は、制御部側接続手段の一例である通信ケーブル２６により間接的に接続されている。 (Second Embodiment)
In the vehicular apparatus 20 illustrated in FIG. 2, the mounting portion 21 has a connector 21a, and the conversion portion 23 has a connector 23a. The connectors 21a and 23a are an example of attachment part side connection means, and directly connect the conversion part 23 and the attachment part 21 without using a communication cable. Moreover, the conversion part 23 and the control part 22 are indirectly connected by the communication cable 26 which is an example of a control part side connection means.

車両用装置２０によれば、ノイズが発生しやすい変換部２３と装着部２１との間における情報の伝送距離を極限まで短くすることができ、ノイズ性能の向上を図ることができる。また、変換部２３に装着部２１を直接的に接続したとしても、変換部２３と制御部２２とを接続する通信ケーブル２６の長さＬｂ、即ち変換部２３と制御部２２との間における情報の伝送距離は適宜調整することができる。そのため、車両における装着部２１の設置位置を基準として変換部２３と制御部２２との間の伝送距離を適宜調整することで、装着部２１の設置位置の自由度を十分に確保することができる。   According to the vehicle device 20, the transmission distance of information between the conversion unit 23 and the mounting unit 21 where noise is likely to be generated can be shortened to the limit, and noise performance can be improved. Even if the mounting unit 21 is directly connected to the conversion unit 23, the length Lb of the communication cable 26 connecting the conversion unit 23 and the control unit 22, that is, information between the conversion unit 23 and the control unit 22. The transmission distance can be adjusted as appropriate. Therefore, by appropriately adjusting the transmission distance between the conversion unit 23 and the control unit 22 with the installation position of the mounting unit 21 in the vehicle as a reference, a sufficient degree of freedom of the installation position of the mounting unit 21 can be ensured. .

（その他の実施形態）
本発明は、上述した実施形態に限定されるものではなく、その要旨を逸脱しない範囲で種々の実施形態に適用可能である。変換部１３と装着部１１との間を接続する通信ケーブルは、ＳＤ通信ケーブルに限られない。また、変換部１３，２３と制御部１２，２２との間を接続する通信ケーブルは、ＵＳＢケーブルに限られない。また、カード型の情報記録媒体は、ＳＤカードに限られない。 (Other embodiments)
The present invention is not limited to the above-described embodiments, and can be applied to various embodiments without departing from the scope of the invention. The communication cable that connects between the conversion unit 13 and the mounting unit 11 is not limited to the SD communication cable. Further, the communication cable that connects between the conversion units 13 and 23 and the control units 12 and 22 is not limited to a USB cable. Further, the card type information recording medium is not limited to the SD card.

図面中、１０，２０は車両用装置、１１，２１は装着部、１２，２２は制御部、１３，２３は変換部、１５は通信ケーブル（装着部側接続手段）、１６，２６は通信ケーブル（制御部側接続手段、ＵＳＢ通信ケーブル）、２１ａ，２３ａはコネクタ（装着部側接続手段）、１００は情報記録媒体を示す。   In the drawings, 10 and 20 are vehicular devices, 11 and 21 are mounting sections, 12 and 22 are control sections, 13 and 23 are conversion sections, 15 is a communication cable (mounting section side connection means), and 16 and 26 are communication cables. (Control unit side connection means, USB communication cable), 21a and 23a are connectors (mounting unit side connection means), and 100 is an information recording medium.

Claims (5)

カード型の情報記録媒体（１００）が着脱可能に装着される装着部（１１，２１）と、
前記装着部に装着された前記情報記録媒体に対し、情報の書き込み動作および読み込み動作を行う制御部（１２，２２）と、
前記装着部に装着された前記情報記録媒体と前記制御部との間で情報の変換処理を行う変換部（１３，２３）と、
前記変換部と前記装着部を接続する装着部側接続手段（１５，２１ａ，２３ａ）と、
前記変換部と前記制御部を接続する制御部側接続手段（１６，２６）と、
を備え、
前記装着部側接続手段による情報の伝送距離が前記制御部側接続手段による情報の伝送距離よりも短い車両用装置。 A mounting portion (11, 21) to which a card-type information recording medium (100) is detachably mounted;
A control unit (12, 22) for performing an information writing operation and a reading operation on the information recording medium mounted on the mounting unit;
A conversion unit (13, 23) for performing a conversion process of information between the information recording medium mounted on the mounting unit and the control unit;
Mounting part side connection means (15, 21a, 23a) for connecting the conversion part and the mounting part;
Control unit side connection means (16, 26) for connecting the conversion unit and the control unit;
With
The apparatus for vehicles in which the transmission distance of the information by the said mounting part side connection means is shorter than the transmission distance of the information by the said control part side connection means. 前記装着部側接続手段は通信ケーブル（１５）である請求項１に記載の車両用装置。   The vehicle apparatus according to claim 1, wherein the attachment portion side connection means is a communication cable (15). 前記装着部側接続手段はコネクタ（２１ａ，２３ａ）である請求項１に記載の車両用装置。   The vehicular apparatus according to claim 1, wherein the mounting portion side connecting means is a connector (21a, 23a). 前記制御部側接続手段は通信ケーブル（１６，２６）である請求項１から３の何れか１項に記載の車両用装置。   The vehicle apparatus according to any one of claims 1 to 3, wherein the control unit side connection means is a communication cable (16, 26). 前記制御部側接続手段はＵＳＢ通信ケーブル（１６，２６）である請求項１から４の何れか１項に記載の車両用装置。   The vehicle apparatus according to any one of claims 1 to 4, wherein the control unit side connection means is a USB communication cable (16, 26).
JP2014196612A 2014-09-26 2014-09-26 Vehicle equipment Expired - Fee Related JP6405837B2 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005092833A (en) * 2003-09-12 2005-04-07 Hagiwara Sys-Com:Kk Functionally expanded electronic device
JP2006301952A (en) * 2005-04-20 2006-11-02 Denso Corp Vehicular usb system and onboard radio communication device
JP2009048543A (en) * 2007-08-22 2009-03-05 Toshiba Corp Semiconductor device
JP2012101528A (en) * 2010-10-12 2012-05-31 Ricoh Co Ltd Optical print head and image forming apparatus
JP2013008100A (en) * 2011-06-22 2013-01-10 Akita Univ Connection device and connection method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005092833A (en) * 2003-09-12 2005-04-07 Hagiwara Sys-Com:Kk Functionally expanded electronic device
JP2006301952A (en) * 2005-04-20 2006-11-02 Denso Corp Vehicular usb system and onboard radio communication device
JP2009048543A (en) * 2007-08-22 2009-03-05 Toshiba Corp Semiconductor device
JP2012101528A (en) * 2010-10-12 2012-05-31 Ricoh Co Ltd Optical print head and image forming apparatus
JP2013008100A (en) * 2011-06-22 2013-01-10 Akita Univ Connection device and connection method

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