JP2009226962A - Drink-driving detecting method and drink-driving detecting device - Google Patents

Drink-driving detecting method and drink-driving detecting device Download PDF

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JP2009226962A
JP2009226962A JP2008071131A JP2008071131A JP2009226962A JP 2009226962 A JP2009226962 A JP 2009226962A JP 2008071131 A JP2008071131 A JP 2008071131A JP 2008071131 A JP2008071131 A JP 2008071131A JP 2009226962 A JP2009226962 A JP 2009226962A
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skin potential
drinking
drunk driving
engine
state
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JP5100466B2 (en
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Toshiaki Sakurai
俊明 桜井
Kazuhide Hashimoto
一秀 橋本
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Alpine Electronics Inc
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a drink-driving detecting method and a drink-driving detecting device for determining a drink-driving condition in accordance with a skin potential level. <P>SOLUTION: The drink-driving detecting device comprises a skin potential level measuring electrode embedded in an engine key of an automobile for measuring a skin potential level between fingers touching the electrode. It determines a drink-driving condition in accordance with the measured skin potential level. When determining the drink-driving condition, it controls an engine not to be started. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は飲酒運転検出方法および飲酒運転検出装置に係り、特に、皮膚電位により運転者が飲酒状態か否かを検出する飲酒運転検出方法および飲酒運転検出装置に関する。   The present invention relates to a drunk driving detection method and a drunk driving detection device, and more particularly to a drunk driving detection method and a drunk driving detection device for detecting whether or not a driver is in a drunk state based on skin potential.

車両における飲酒運転は道路交通法により禁止されており、呼気１リットル中のアルコール濃度が０．１５ｍｇ以上が飲酒運転となっている。従来より、呼気中のアルコール濃度を検出して、飲酒運転を取り締まり、違反者に高い罰金を科しているが、飲酒運転は絶えない。   Drunk driving in vehicles is prohibited by the Road Traffic Act, and alcohol concentration in an liter of breath is 0.15 mg or more is drunk driving. Conventionally, alcohol concentration in breath is detected, and drunk driving is controlled, and a fine is imposed on the offender, but drunk driving is not constant.

そこで、第１の従来技術として、車両のハンドル部分に皮膚抵抗測定部を備え、皮膚抵抗により疲労状態、すなわち眠気を催す状態と判断し、その旨の警告を発し、停車あるいは一定速度以上とならないように制御する技術（特許文献１）がある。この従来技術では、エンジン始動と同時に運転者の皮膚抵抗を測定して該測定結果を基準値として保存する。そして、所定時間毎の皮膚抵抗を測定し、該基準値と比較し、該測定結果が該基準値より大きくなった場合には飲酒等に伴う興奮状態と判断し、該測定結果が該基準値より相当量小さくなった場合には疲労状態、すなわち眠気を催す状態と判断し、その旨の警告を発し、停車あるいは一定速度以上とならないように制御する。   Therefore, as a first conventional technique, a vehicle is provided with a skin resistance measurement unit at the handle portion of the vehicle, and it is determined that the skin resistance is in a fatigue state, that is, a state of drowsiness. There is a technique (Patent Document 1) for controlling as described above. In this prior art, the driver's skin resistance is measured at the same time as the engine is started, and the measurement result is stored as a reference value. Then, the skin resistance is measured every predetermined time, compared with the reference value, and when the measurement result is larger than the reference value, it is determined that the state of excitement due to drinking etc., and the measurement result is the reference value When the amount is considerably smaller, it is determined that the state is fatigued, that is, a state of drowsiness, a warning to that effect is issued, and control is performed so as not to stop or exceed a certain speed.

また、第２の従来技術として、エンジンキーにアルコールセンサおよび湿度センサを備え、運転者が該湿度センサに素手で触れたか判断し、素手で触れたと判断した場合にはアルコールセンサが運転者の汗にアルコール蒸気が含まれているか判断し、該アルコール蒸気が含まれていると判断した場合には、マイコン等の制御部がエンジンの始動モータの作動を阻止するように制御する技術（特許文献２）がある。
特公平３−４８５６０号公報 特開２００８−７１００号公報 As a second conventional technique, the engine key is provided with an alcohol sensor and a humidity sensor, and it is determined whether or not the driver touches the humidity sensor with bare hands. Is determined to contain alcohol vapor, and when it is determined that the alcohol vapor is contained, a control unit such as a microcomputer performs control so as to prevent the operation of the engine starting motor (Patent Document 2). )
Japanese Patent Publication No. 3-48560 JP 2008-7100 A

上記第１の従来技術においては、運転者がエンジンを始動させた後から皮膚抵抗測定部により測定した皮膚抵抗を基準値として、所定時間毎の皮膚抵抗を測定し、該測定結果と該基準値との比較に基づいて運転者の状態を判断するので、飲酒状態でも車両の運転が可能となるという問題点がある。   In the first prior art, the skin resistance measured by the skin resistance measuring unit after the driver starts the engine is used as a reference value, and the skin resistance is measured every predetermined time, and the measurement result and the reference value are measured. Therefore, there is a problem that the vehicle can be driven even in a drunk state.

また、上記第２の従来技術は、湿度センサとアルコールセンサが必要でコスト高となると共に、運転者の汗に含まれるアルコール蒸気を検出するので、飲酒直後の汗にアルコール蒸気が含まれる可能性が低く、飲酒直後の飲酒状態の検出が困難であるという問題点がある。   In addition, the second prior art requires a humidity sensor and an alcohol sensor, which increases the cost and detects alcohol vapor contained in the driver's sweat, so that alcohol vapor may be contained in the sweat immediately after drinking. Is low, and it is difficult to detect the drinking state immediately after drinking.

本発明の目的は、運転者が飲酒状態かの判断を精度良く行い、飲酒状態の場合は、車両のエンジンの始動を禁止するように制御し、飲酒運転による危険を未然に防ぐことである。
本発明の別の目的は、１種類のセンサを用いて飲酒状態を検出することである。
本発明の別の目的は、飲酒直後であっても飲酒状態を検出することである。 An object of the present invention is to accurately determine whether or not a driver is in a drunk state, and in the case of a drunk state, control is performed so as to prohibit the start of the engine of the vehicle, thereby preventing a danger caused by drunk driving.
Another object of the present invention is to detect drinking status using one type of sensor.
Another object of the present invention is to detect the drinking status even immediately after drinking.

本発明は、皮膚電位により運転者が飲酒状態か否かを検出する飲酒運転検出方法および飲酒運転検出装置に関する。
本発明の飲酒運転検出方法は、自動車のキーに皮膚電位測定用の電極を埋め込み、該電極に触れる指間の皮膚電位を測定し、該測定した皮膚電位により飲酒状態か判断する。
本発明の飲酒運転検出方法は、更に、飲酒状態と判断した場合エンジンの始動を禁止する。
本発明の飲酒運転検出装置は、自動車のキーに埋め込んだ皮膚電位測定用の電極と、前記電極を介して、指間の皮膚電位を測定する皮膚電位測定部と、該測定した皮膚電位により飲酒状態か判断する飲酒状態判断部と、を備えている。
本発明の飲酒運転検出装置は、更に、前記飲酒状態判断部が飲酒状態と判断した場合にはエンジンの始動を禁止するエンジン始動禁止部、を備えている。 The present invention relates to a drunk driving detection method and a drunk driving detection device that detect whether or not a driver is in a drunk state based on skin potential.
In the method for detecting drunk driving according to the present invention, an electrode for skin potential measurement is embedded in a key of an automobile, the skin potential between fingers touching the electrode is measured, and it is determined whether the person is drinking based on the measured skin potential.
The drunk driving detection method of the present invention further prohibits starting of the engine when it is determined that the person is drinking.
The drunk driving detection device of the present invention comprises an electrode for measuring skin potential embedded in a key of an automobile, a skin potential measuring unit for measuring skin potential between fingers via the electrode, and drinking based on the measured skin potential. And a drinking level determination unit for determining whether it is in a state.
The drunk driving detection apparatus of the present invention further includes an engine start prohibiting unit that prohibits starting of the engine when the drinking state determination unit determines that the drinking state has occurred.

本発明によれば、自動車のキーに皮膚電位測定用の電極を埋め込み、該電極に触れる指間の皮膚電位を測定し、該測定した皮膚電位により飲酒状態か判断するようにしたので、運転者が飲酒状態かの判断を精度良く行え、飲酒状態の場合は、車両のエンジンの始動を禁止するようにしたので、飲酒運転による危険を未然に防ぐことができる。また、飲酒直後であっても飲酒状態を検出して、飲酒運転による危険を未然に防ぐことができる。
また、本発明によれば、１種類のセンサを用いて飲酒状態を検出するようにしたので、コストを低減することができる。 According to the present invention, the electrode for skin potential measurement is embedded in the key of the automobile, the skin potential between the fingers touching the electrode is measured, and it is determined whether the person is drinking or not based on the measured skin potential. It is possible to accurately determine whether or not the person is in a drunk state, and in the case of a drunk state, the start of the engine of the vehicle is prohibited, so that the danger caused by drunk driving can be prevented. In addition, even after drinking alcohol, it is possible to detect the drinking state and prevent danger from drunk driving.
Moreover, according to this invention, since the drinking state was detected using one type of sensor, cost can be reduced.

（Ａ）本発明の概要
図１は本発明の概略説明図であり、１は車両のエンジンキー、２はエンジンキーの把持部両面に埋め込まれている指間の皮膚電位測定用電極、３は電極２に接続されている端子である。尚、所定長以上の２点間の皮膚電位は、正常状態において正となるが、飲酒状態においては負になる。 (A) Outline of the Present Invention FIG. 1 is a schematic explanatory view of the present invention, in which 1 is an engine key of a vehicle, 2 is an electrode for measuring skin potential between fingers embedded on both sides of the grip part of the engine key, It is a terminal connected to the electrode 2. Note that the skin potential between two points of a predetermined length or more is positive in a normal state, but negative in a drinking state.

運転者はエンジン始動に際して、エンジンキー１を車両のキー穴に挿入する。その際、把持部両面に埋め込まれている電極２に発生する指間（例えば親指と人差し指間）の皮膚電位を端子３を介して、車内に設置されている図示しない飲酒判断部に送り、該飲酒判断部は該皮膚電位が負の値を示しているかの判断を行う。該飲酒判断部は該皮膚電位が負を示していれば、運転者は飲酒状態であると判断し、イグニッション回路を制御してエンジン始動を禁止する。   When the engine is started, the driver inserts the engine key 1 into the key hole of the vehicle. At that time, the skin potential between the fingers (for example, between the thumb and the index finger) generated on the electrodes 2 embedded on both sides of the gripping part is sent via the terminal 3 to a drinking determination unit (not shown) installed in the vehicle, The drinking determination unit determines whether the skin potential shows a negative value. If the skin potential is negative, the drinking determination unit determines that the driver is in a drinking state, and controls the ignition circuit to prohibit engine start.

（Ｂ）皮膚電位測定の原理
皮膚電位が正常状態においては正となるが、飲酒状態においては負となることを利用することにより、飲酒運転の検出が可能となる。
ここで、皮膚電位について述べる。皮膚電位（Skin Potential Level：SPL）とは掌と上腕部あるいは２つの指先間に生じる電位差である。細胞内外の主な物質としてK+、Na+、Cl-が存在し、細胞内外では強制的にこれらの濃度差が作られ、細胞内外で受動輸送、能動輸送が起こり皮膚電位を生じる。この皮膚電位は皮膚間距離が５ｃｍ以上であれば測定でき、さまざまな状態によって異なった測定結果が得られることが知られている。 (B) Principle of skin potential measurement By utilizing the fact that the skin potential is positive in a normal state but negative in a drunk state, it is possible to detect drunk driving.
Here, skin potential will be described. Skin potential level (SPL) is a potential difference generated between the palm and upper arm or between two fingertips. There are K + , Na + and Cl − as main substances inside and outside the cell, and these concentration differences are forced inside and outside the cell, and passive and active transport occur inside and outside the cell to generate skin potential. It is known that this skin potential can be measured if the distance between skins is 5 cm or more, and different measurement results can be obtained depending on various conditions.

図２は一人の被験者のさまざまな状態における皮膚電位であり、Ａｃは活動状態の皮膚電位、Ｎｏｒは平常状態の皮膚電位、ＡＦＴ１は飲酒直後の皮膚電位、ＡＦＴ２は飲酒後３０分経過後の皮膚電位である。図２において、活動状態の皮膚電位Ａｃと平常状態の皮膚電位Ｎｏｒは正を示しているが、飲酒直後の皮膚電位ＡＦＴ１と飲酒後３０分経過後の皮膚電位ＡＦＴ２は負を示している。
図３は５人の被験者の飲酒直後の皮膚電位であり、図４は飲酒後３０分経過後の皮膚電位である。ＶＡ〜ＶＥはそれぞれの被験者Ａ〜Ｅの皮膚電位である。図３、４において、個人差や例外的な部分はあるが、被験者全員の皮膚電位ＶＡ〜ＶＥは負を示している。
以上より、皮膚電位が負である場合は飲酒状態であることが判断でき、後述する飲酒検出装置に適用することにより飲酒状態の検出が可能となる。 FIG. 2 shows skin potentials in various states of one subject, where Ac is the active skin potential, Nor is the normal skin potential, AFT1 is the skin potential immediately after drinking, and AFT2 is the skin 30 minutes after drinking. Potential. In FIG. 2, the skin potential Ac in the active state and the skin potential Nor in the normal state are positive, but the skin potential AFT1 immediately after drinking and the skin potential AFT2 30 minutes after drinking are negative.
FIG. 3 shows the skin potential immediately after drinking of five subjects, and FIG. 4 shows the skin potential after 30 minutes from drinking. VA to VE are skin potentials of the respective subjects A to E. 3 and 4, although there are individual differences and exceptional parts, the skin potentials VA to VE of all the subjects are negative.
From the above, when the skin potential is negative, it can be determined that the person is in a drinking state, and the drinking state can be detected by applying to a drinking detection device described later.

（Ｃ）第１実施例
図５は第１実施例のエンジンキーおよび車両のキーシリンダーの説明図、図６は車両側に設置されている飲酒運転制御ユニットの構成図である。
図５（Ａ）に示すように、エンジンキー１の把持部１ａの両面には指間の皮膚電位を発生する表電極２が埋め込まれている。この皮膚電位測定用電極２に図５（Ｃ）に示すように、運転者の指が触れると指間（例えば、親指と人差し指間）の皮膚電位が表電極に接続されている端子３ａと裏電極に接続されている端子３ｂ間に発生する。 (C) First Embodiment FIG. 5 is an explanatory view of an engine key and a vehicle key cylinder of the first embodiment, and FIG. 6 is a configuration diagram of a drunk driving control unit installed on the vehicle side.
As shown in FIG. 5 (A), surface electrodes 2 that generate a skin potential between fingers are embedded on both surfaces of the grip portion 1a of the engine key 1. As shown in FIG. 5C, when the driver's finger touches the skin potential measuring electrode 2, the skin potential between the fingers (for example, between the thumb and the index finger) is connected to the terminal 3a connected to the front electrode and the back. It occurs between the terminals 3b connected to the electrodes.

車両のエンジンを始動させるためにエンジンキー１を差し込むキーシリンダー４は、図５（Ｂ）に示すようにエンジンキー挿入部４ａ、エンジンキー１に設けた端子３ａ、３ｂと接触する端子５ａ、５ｂを備え、後述する車内の飲酒運転検出装置に指間の皮膚電位を入力する。   The key cylinder 4 into which the engine key 1 is inserted to start the engine of the vehicle is connected to the engine key insertion portion 4a and terminals 3a and 3b provided on the engine key 1 as shown in FIG. And the skin potential between the fingers is input to a drunken driving detection device in the vehicle to be described later.

図６において、Ａ、Ｂは皮膚電位を検出する親指、人指し指の上の点であり、測定点Ａ、Ｂ間の皮膚電位は飲酒運転制御ユニット６０に入力される。飲酒運転制御ユニット６０において、増幅部６１は該入力された皮膚電位が小さいため増幅し、増幅した皮膚電位を飲酒判断部６２に入力する。飲酒判断部６２は該皮膚電位が負であるかの判断を行う。前述したように皮膚電位が負である場合は飲酒状態、正である場合は正常状態であると判断が可能である。飲酒判断部６２が該皮膚電位が負であると判断した場合、すなわち飲酒状態であると判断した場合、イグニッション制御部６３はエンジンの始動を禁止するようにイグニッション回路６４を制御する。   In FIG. 6, A and B are points on the thumb and index finger for detecting skin potential, and the skin potential between the measurement points A and B is input to the drunk driving control unit 60. In the drunk driving control unit 60, the amplification unit 61 amplifies the inputted skin potential because it is small, and inputs the amplified skin potential to the drinking determination unit 62. The drinking determination unit 62 determines whether the skin potential is negative. As described above, when the skin potential is negative, it can be determined that the person is drinking, and when the skin potential is positive, it can be determined that the person is in the normal state. When the drinking determination unit 62 determines that the skin potential is negative, that is, when it is determined that it is in the drinking state, the ignition control unit 63 controls the ignition circuit 64 so as to prohibit the start of the engine.

次に全体の動作について説明を行う。
運転者はエンジンを掛けるために、親指、人差し指の測定点Ａ、Ｂを電極２に触れながら、エンジンキー１をキーシリンダー４に挿入し、エンジンキー１を回す。そのとき、把持部両面の電極２に発生した皮膚電位はエンジンキー１に備えられている端子３ａ、３ｂ、エンジンキー挿入部４ａに備えられている端子５ａ、５ｂを介して車内に設置されている飲酒運転制御ユニット６０に入力する。該皮膚電位は小さいため、増幅器６１は皮膚電位を増幅して飲酒判断部６２に入力する。 Next, the overall operation will be described.
In order to start the engine, the driver inserts the engine key 1 into the key cylinder 4 while turning the measurement points A and B of the thumb and forefinger to the electrode 2 and turns the engine key 1. At that time, the skin potential generated on the electrodes 2 on both sides of the gripping part is installed in the vehicle via terminals 3a and 3b provided in the engine key 1 and terminals 5a and 5b provided in the engine key insertion part 4a. To the drunk driving control unit 60. Since the skin potential is small, the amplifier 61 amplifies the skin potential and inputs it to the drinking determination unit 62.

飲酒判断部６２は該入力された皮膚電位が負であるかの判断を行い、負の場合は飲酒状態であると判断し、飲酒信号をイグニッション制御部６３に送り、皮膚電位が正である場合は正常状態であると判断し、正常信号をイグニッション制御部６３に入力する。イグニッション制御部６３は該入力された信号に基づいて、イグニッション回路６４を制御し、飲酒状態である場合にはエンジンの始動を禁止するように制御を行い、正常状態である場合にはエンジンを始動させるように制御を行う。尚、電極のつなぎ方を反対にすると、正常状態と飲酒状態とでは極性が反転する。これを考慮すれば、正常状態の極性と異なる極性の皮膚電位が検出されたとき、飲酒状態と判定する。以下の実施例においても同様に言えることである。   The drinking determination unit 62 determines whether or not the input skin potential is negative. If it is negative, the drinking determination unit 62 determines that it is in the drinking state, sends a drinking signal to the ignition control unit 63, and the skin potential is positive. Is determined to be in a normal state, and a normal signal is input to the ignition control unit 63. The ignition control unit 63 controls the ignition circuit 64 based on the input signal, performs control so as to prohibit the start of the engine when in a drinking state, and starts the engine when in a normal state. Control is performed. If the electrodes are connected in reverse, the polarity is reversed between the normal state and the drinking state. Considering this, when a skin potential having a polarity different from the polarity in the normal state is detected, it is determined that the person is drinking. The same applies to the following embodiments.

以上、本実施例によれば、自動車のエンジンキーに皮膚電位測定用の電極を埋め込み、該電極に触れる指間の皮膚電位を測定し、該測定した皮膚電位により飲酒状態か判断するようにしたので、運転者が飲酒状態かの判断を精度良く行え、飲酒状態の場合は、車両のエンジンの始動を禁止するようにしたので、飲酒運転による危険を未然に防ぐことができる。また、飲酒直後であっても飲酒状態を検出して、飲酒運転による危険を未然に防ぐことができる。
また、本実施例によれば、１種類のセンサにより飲酒運転の検出を行うようにしたので、コストを低減することができる。 As described above, according to the present embodiment, the electrode for skin potential measurement is embedded in the engine key of the automobile, the skin potential between the fingers touching the electrode is measured, and it is determined whether the person is drinking based on the measured skin potential. Therefore, it is possible to accurately determine whether or not the driver is in a drunk state, and in the case of a drunk state, the start of the engine of the vehicle is prohibited, so that the danger caused by drunk driving can be prevented. In addition, even after drinking alcohol, it is possible to detect the drinking state and prevent danger from drunk driving.
Moreover, according to the present Example, since drunk driving was detected by one type of sensor, cost can be reduced.

（Ｄ）第２実施例
図７は第２実施例の飲酒運転検出装置の構成図であり、図６の第１実施例と同一部分には同一符号を付している。第１実施例と異なる点は、エンジンキー１にマイコン等の飲酒判断部６２を設け、更に変調部７１、無線送信部７２を設け、車側に無線受信部７３、復調部７４を設けた点である。
変調部７１は、飲酒判断部６２が増幅器６１より入力された皮膚電位に基づいて発生した飲酒信号もしくは正常信号を、変調する。無線送信部７２は変調部７１が変調した信号を無線により送信する。無線受信部７３は無線送信部７２が送信した信号を受信し、復調部７４は無線受信部７３が受信した信号を復調する。 (D) 2nd Example FIG. 7: is a block diagram of the drunk driving detection apparatus of 2nd Example, and attaches | subjects the same code | symbol to the same part as 1st Example of FIG. The difference from the first embodiment is that the engine key 1 includes a drinking determination unit 62 such as a microcomputer, a modulation unit 71 and a wireless transmission unit 72, and a wireless reception unit 73 and a demodulation unit 74 on the vehicle side. It is.
The modulation unit 71 modulates the drinking signal or the normal signal generated based on the skin potential input from the amplifier 61 by the drinking determination unit 62. The wireless transmission unit 72 wirelessly transmits the signal modulated by the modulation unit 71. The wireless receiver 73 receives the signal transmitted by the wireless transmitter 72, and the demodulator 74 demodulates the signal received by the wireless receiver 73.

次に全体の動作について説明を行う。
エンジンキー１の把持部両面の電極２に発生した皮膚電位を増幅器６１に入力する。該皮膚電位は小さいため、増幅器６１により増幅して、該皮膚電位を飲酒判断部６２に入力する。飲酒判断部６２は該入力された皮膚電位が負であるかの判断を行い、負の場合は飲酒状態であると判断し飲酒信号を、皮膚電位が正の場合は正常状態であると判断し正常信号を、変調部７１に入力する。 Next, the overall operation will be described.
The skin potential generated at the electrodes 2 on both sides of the grip portion of the engine key 1 is input to the amplifier 61. Since the skin potential is small, the skin potential is amplified by the amplifier 61 and the skin potential is input to the drinking determination unit 62. The drinking determination unit 62 determines whether the input skin potential is negative. If the skin potential is negative, the drinking determination unit 62 determines that the alcohol is in the drinking state. If the skin potential is positive, the drinking determination unit 62 determines that the skin potential is normal. A normal signal is input to the modulation unit 71.

次に、変調部７１は該入力された信号を変調し、無線送信部７２に入力する。無線送信部７２は該変調された信号を電波を用いて、車側に設置されている無線受信部７３に送信する。無線受信部７３は該送信された信号を受信し、復調部７４に入力する。復調部７４は、該受信した信号を復調し、該復調した信号をイグニッション制御部６３に入力する。
イグニッション制御部６３は該入力された信号に基づいて、イグニッション回路６４を制御し、飲酒状態である場合にはエンジンの始動を禁止するように制御を行い、正常状態である場合にはエンジンを始動させるように制御を行う。尚、無線送受信部をブルートゥースにより構成することもできる。 Next, the modulation unit 71 modulates the input signal and inputs the modulated signal to the wireless transmission unit 72. The wireless transmission unit 72 transmits the modulated signal to the wireless reception unit 73 installed on the vehicle side using radio waves. The wireless reception unit 73 receives the transmitted signal and inputs it to the demodulation unit 74. The demodulator 74 demodulates the received signal and inputs the demodulated signal to the ignition controller 63.
The ignition control unit 63 controls the ignition circuit 64 on the basis of the input signal, and performs control so as to prohibit the start of the engine when in a drinking state, and starts the engine when in a normal state. Control is performed. The wireless transmission / reception unit can also be configured by Bluetooth.

以上、本実施例によれば、第１実施例と同様の効果を得ることができる。また、第２実施例によれば、キーシリンダーにエンジンキー側の電極と接触する電極構造を設ける必要がないので、キーシリンダー構造を簡単にできる。   As described above, according to this embodiment, the same effect as that of the first embodiment can be obtained. Further, according to the second embodiment, since it is not necessary to provide the key cylinder with an electrode structure in contact with the engine key side electrode, the key cylinder structure can be simplified.

（Ｅ）変形例
図８は変形例の飲酒運転検出装置の構成図であり、図７の第２実施例と同一部分には同一符号を付している。第２実施例と異なる点は、マイコン等の飲酒運転判断部６２を車側に設置した点である。この変形例では、増幅器出力をＡＤ変換し、該出力電圧を無線で車側に送信し、車側の飲酒判断部６２で飲酒運転を検出する。 (E) Modified Example FIG. 8 is a configuration diagram of a drunk driving detection apparatus according to a modified example, and the same reference numerals are given to the same parts as those in the second example of FIG. The difference from the second embodiment is that a drunk driving determination unit 62 such as a microcomputer is installed on the vehicle side. In this modification, the amplifier output is AD-converted, the output voltage is transmitted wirelessly to the vehicle side, and the drinking determination unit 62 on the vehicle side detects the drunk driving.

以上より、変形例によっても第２実施例と同様の効果を得ることができる。   As described above, the same effect as that of the second embodiment can be obtained by the modification.

本発明の概略説明図である。It is a schematic explanatory drawing of this invention. 一人の被験者のさまざまな状態における皮膚電位である。It is skin potential in various states of one subject. ５人の被験者の飲酒直後の皮膚電位である。Skin potential immediately after drinking of 5 subjects. ５人の被験者の飲酒後３０分経過後の皮膚電位である。It is the skin potential after the elapse of 30 minutes after drinking of five subjects. 第１実施例のエンジンキーおよび車両のキーシリンダーの説明図である。It is explanatory drawing of the engine key of 1st Example, and the key cylinder of a vehicle. 第１実施例の車両側飲酒運転制御ユニットの構成図である。It is a block diagram of the vehicle side drunk driving control unit of 1st Example. 第２実施例の飲酒運転検出装置の構成図である。It is a block diagram of the drunk driving detection apparatus of 2nd Example. 変形例の飲酒運転検出装置の構成図ある。It is a block diagram of the drunk driving detection apparatus of a modification.

符号の説明Explanation of symbols

１ エンジンキー
１ａ エンジンキー把持部
２ 皮膚電位を測定するための電極
３ 発生した皮膚電位を入力するための端子
３ａ 発生した皮膚電位を入力するための端子
３ｂ 発生した皮膚電位を入力するための端子
４ キーシリンダー
４ａ エンジンキー挿入部
５ａ ３ａに接触する端子
５ｂ ３ｂに接触する端子
６０ 飲酒運転制御ユニット
６２ 飲酒判断部
６３ イグニッション制御部
７１ 変調部
７２ 無線送信部
７３ 無線受信部
７４ 復調部
DESCRIPTION OF SYMBOLS 1 Engine key 1a Engine key holding part 2 Electrode for measuring skin potential 3 Terminal for inputting generated skin potential 3a Terminal for inputting generated skin potential 3b Terminal for inputting generated skin potential 4 Key cylinder 4a Engine key insertion part 5a 3a terminal that contacts 3a 5b 3b terminal that contacts 3b 60 drinking operation control unit 62 drinking determination part 63 ignition control part 71 modulation part 72 wireless transmission part 73 wireless reception part 74 demodulation part

Claims (4)

皮膚電位により運転者が飲酒状態か否かを検出する飲酒運転検出方法において、
自動車のキーに皮膚電位測定用の電極を埋め込み、
該電極に触れる指間の皮膚電位を測定し、
該測定した皮膚電位により飲酒状態か判断する、
ことを特徴とする飲酒運転検出方法。 In the drunk driving detection method for detecting whether the driver is in a drunk state or not by skin potential,
Embed electrodes for skin potential measurement in car keys
Measure skin potential between fingers touching the electrode,
Judgment of alcohol consumption based on the measured skin potential,
A drunk driving detection method characterized by the above. 更に、飲酒状態と判断した場合エンジンの始動を禁止する、
ことを特徴とする請求項１記載の飲酒運転検出方法。 In addition, the engine is prohibited from starting when it is determined that the person is drinking.
The drunk driving detection method according to claim 1. 皮膚電位により運転者が飲酒状態か否か検出する飲酒運転検出装置において、
自動車のキーに埋め込んだ皮膚電位測定用の電極と、
前記電極を介して、指間の皮膚電位を測定する皮膚電位測定部と、
該測定した皮膚電位により飲酒状態か判断する飲酒状態判断部と、
を備えたことを特徴とする飲酒運転検出装置。 In the drunk driving detection device that detects whether the driver is in a drunk state by skin potential,
An electrode for skin potential measurement embedded in the key of an automobile,
A skin potential measuring unit for measuring a skin potential between fingers via the electrodes;
A drinking level determination unit for determining whether the drinking level is based on the measured skin potential;
A drunk driving detection device comprising: 更に、前記飲酒状態判断部が飲酒状態と判断した場合にはエンジンの始動を禁止するエンジン始動禁止部、
を備えたことを特徴とする請求項３記載の飲酒運転検出装置。 Further, when the drinking level determination unit determines that it is a drinking state, an engine start prohibiting unit that prohibits starting of the engine,
The drunk driving detection apparatus according to claim 3, comprising:
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JP2014511306A (en) * 2011-03-09 2014-05-15 ティーケー ホールディングス インク． System and method for disabling a vehicle
KR101448516B1 (en) 2013-06-04 2014-10-08 현대오트론 주식회사 Method and Apparatus for Preventing Drunken Drive of Vehicle

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JPH0348560B2 (en) * 1982-07-26 1991-07-24 Toyota Motor Co Ltd
JP2001219760A (en) * 2000-02-09 2001-08-14 Hitachi Ltd Moving body driving support device
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JPH0348560B2 (en) * 1982-07-26 1991-07-24 Toyota Motor Co Ltd
JPS60139539A (en) * 1983-12-27 1985-07-24 Seikosha Co Ltd Doze preventing device
JP2001219760A (en) * 2000-02-09 2001-08-14 Hitachi Ltd Moving body driving support device
JP2008007100A (en) * 2007-06-04 2008-01-17 Micron Seimitsu Kk Danger preventive device in driving operation

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Publication number Priority date Publication date Assignee Title
JP2014511306A (en) * 2011-03-09 2014-05-15 ティーケー ホールディングス インク． System and method for disabling a vehicle
KR101448516B1 (en) 2013-06-04 2014-10-08 현대오트론 주식회사 Method and Apparatus for Preventing Drunken Drive of Vehicle

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