JPH05124592A - Detector of consciousness of aircraft pilot - Google Patents
Detector of consciousness of aircraft pilotInfo
- Publication number
- JPH05124592A JPH05124592A JP3313233A JP31323391A JPH05124592A JP H05124592 A JPH05124592 A JP H05124592A JP 3313233 A JP3313233 A JP 3313233A JP 31323391 A JP31323391 A JP 31323391A JP H05124592 A JPH05124592 A JP H05124592A
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- JP
- Japan
- Prior art keywords
- pilot
- acceleration
- consciousness
- magnitude
- brain
- Prior art date
- Legal status (The legal status 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 status listed.)
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Links
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、大きな下向き加速度の
作用を受ける航空機パイロットの意識喪失による事故防
止に利用できる意識検出装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a consciousness detecting device which can be used for preventing accidents due to loss of consciousness of an aircraft pilot who is subjected to a large downward acceleration.
【０００２】[0002]
【従来の技術】近年、航空機の高機能化により、パイロ
ットが大きな下向き加速度の作用を受けて脳内血液の減
少により意識喪失に陥り、事故につながる例が少なくな
い。このような事故防止のため、耐加速度スーツ装置や
加圧呼吸装置といった耐加速度装置が従来より用いられ
ている。2. Description of the Related Art In recent years, due to the high performance of aircraft, there are many cases in which a pilot is subjected to a large downward acceleration and loses consciousness due to a decrease in blood in the brain, leading to an accident. In order to prevent such an accident, an acceleration resistant device such as an acceleration resistant suit device or a pressurized breathing device has been conventionally used.
【０００３】その耐加速度スーツ装置は、ズボン状の耐
加速度スーツ本体と、このスーツ本体に取り付けられる
ブラダと、航空機の加速度に応じて圧力調節した気体を
前記ブラダに供給する加速度感応型圧力調節バルブとを
備え、航空機の加速度が大きくなるほどにブラダに供給
する気体圧力を高くしてブラダを膨張させ、パイロット
の下半身を締め付け、パイロットが意識喪失に陥るのを
防止する。また、その加圧呼吸装置は、パイロットの呼
吸用マスクに航空機の加速度に応じて圧力調節した呼吸
器を供給し、加速度が大きくなるほどに呼吸器圧力を高
くすることでパイロットが意識喪失に陥るのを防止す
る。The anti-acceleration suit apparatus includes a pants-shaped anti-acceleration suit body, a bladder attached to the suit body, and an acceleration-sensitive pressure control valve for supplying gas whose pressure is adjusted according to the acceleration of the aircraft to the bladder. As the acceleration of the aircraft increases, the gas pressure supplied to the bladder is increased to expand the bladder, tighten the lower body of the pilot, and prevent the pilot from becoming unconscious. In addition, the pressurized breathing apparatus supplies the respirator whose pressure is adjusted according to the acceleration of the aircraft to the respirator of the pilot, and the higher the acceleration, the higher the respirator pressure, causing the pilot to lose consciousness. Prevent.
【０００４】[0004]
【発明が解決しようとする課題】しかし、近年における
航空機の機能向上は著しく、加速度の増加率の急激な上
昇によりパイロットが自覚なしに意識を喪失することが
あり、従来の耐加速度装置では意識喪失に対する回避動
作が行えずに事故発生のおそれがある。However, the functions of aircraft have been remarkably improved in recent years, and the pilot may lose consciousness without being aware of it due to a rapid increase in the rate of increase in acceleration. There is a risk that an accident will occur because the avoidance action cannot be performed.
【０００５】また、従来の耐加速度装置にあっては、航
空機の加速度に応じて画一的にパイロットの意識を蘇生
させようとするものであるため、体調や個人差といった
パイロット個々の加速度に対する耐性の相違に対応でき
なかった。Further, in the conventional acceleration resistant device, since the pilot's consciousness is revived uniformly according to the acceleration of the aircraft, the resistance to the individual acceleration of the pilot such as physical condition and individual difference. Could not handle the difference.
【０００６】本発明は上記従来技術の問題を解決するこ
とのできる航空機パイロットの意識検出装置を提供する
ことを目的とする。It is an object of the present invention to provide an aircraft pilot consciousness detecting device which can solve the above problems of the prior art.
【０００７】[0007]
【課題を解決するための手段】本発明の特徴とするとこ
ろは、パイロットの脳内の酸素状態をモニタする手段
と、パイロットに作用する加速度の大きさと増加率とを
モニタする手段と、予め測定したパイロットの脳内の酸
素状態とパイロットに作用する加速度の大きさと増加率
との関係を表すデータを記憶する手段と、その酸素状態
と加速度の大きさと増加率のモニタ値を記憶されたデー
タと比較することでパイロットの意識状態を判定する判
定手段とを備える点にある。The features of the present invention are that it monitors the oxygen state in the brain of the pilot, the means that monitors the magnitude and rate of increase of the acceleration acting on the pilot, and measures in advance. Means for storing data representing the relationship between the oxygen state in the brain of the pilot and the magnitude of acceleration acting on the pilot and the rate of increase, and data storing the monitor values of the oxygen state, the magnitude of acceleration and the rate of increase. It is provided with a determining means for determining the consciousness state of the pilot by comparing.
【０００８】[0008]
【作用】本発明の構成によれば、パイロットに作用する
加速度の大きさと増加率とがモニタされると共に、その
加速度に応じて変化するパイロットの脳内の酸素状態が
モニタされる。また、パイロットに作用する加速度の大
きさと増加率とパイロットの脳内の酸素状態との関係が
予め測定され、その関係を表すデータが記憶される。こ
れにより、パイロットの脳内の酸素状態と加速度の大き
さと増加率のモニタ値を記憶されたデータと比較するこ
とで、パイロットが意識喪失状態にあるか否かや、意識
喪失に陥る危険性が高いか低いかといった意識状態を判
定することができる。この判定結果に基づいて、パイロ
ットの意識状態に応じて警報信号を発することができ
る。この警報信号によってパイロットの意識蘇生措置や
航空機の自動操縦モードへの切換えといったリカバリー
動作を行うことができる。According to the configuration of the present invention, the magnitude and rate of increase of the acceleration acting on the pilot are monitored, and the oxygen state in the brain of the pilot, which changes according to the acceleration, is monitored. In addition, the relationship between the magnitude and rate of increase of the acceleration acting on the pilot and the oxygen state in the brain of the pilot is measured in advance, and data representing the relationship is stored. As a result, by comparing the oxygen level in the brain of the pilot, the magnitude of acceleration, and the monitor value of the rate of increase with the stored data, it is possible to determine whether or not the pilot is in an unconscious state and the risk of falling into unconsciousness. It is possible to judge the consciousness state such as high or low. Based on this determination result, an alarm signal can be issued according to the consciousness state of the pilot. This alarm signal enables recovery actions such as pilot consciousness resuscitation measures and aircraft switching to automatic pilot mode.
【０００９】[0009]
【実施例】以下、図面を参照して本発明の実施例を説明
する。Embodiments of the present invention will be described below with reference to the drawings.
【００１０】図１は耐加速度スーツ装置１を装着した航
空機パイロット２を示し、その耐加速度スーツ装置１
は、ズボン状のスーツ本体３と、このスーツ本体３に内
蔵されるブラダ４と、このブラダ４に高圧空気源５から
高圧空気を加速度に応じて圧力調節して供給する加速度
感応型圧力調節バルブ６とを備えている。その加速度感
応型圧力調節バルブ６は、加速度が大きくなるほどにブ
ラダ４に供給する空気圧力を大きくしてブラダ４を膨張
させ、パイロット２の下半身を締め付けて脳への血液供
給を促進して意識喪失を防止する。FIG. 1 shows an aircraft pilot 2 wearing an anti-acceleration suit apparatus 1.
Is a trouser-like suit body 3, a bladder 4 built in the suit body 3, and an acceleration-sensitive pressure adjusting valve for supplying high pressure air from a high pressure air source 5 to the bladder 4 by adjusting the pressure according to the acceleration. 6 and 6. The acceleration-sensitive pressure control valve 6 expands the bladder 4 by increasing the air pressure supplied to the bladder 4 as the acceleration increases, and tightens the lower body of the pilot 2 to promote blood supply to the brain and lose consciousness. Prevent.
【００１１】そのパイロット２が意識喪失に陥る前に警
報信号を発信すると共に意識を喪失した場合は航空機の
リカバリー信号を発信することができるように、パイロ
ット２の意識検出装置が設けられている。A consciousness detecting device for the pilot 2 is provided so that the pilot 2 can issue an alarm signal before it loses consciousness and, when the consciousness is lost, an aircraft recovery signal.
【００１２】すなわち、パイロット２が装着するヘルメ
ットに、発光部と受光部とを備えた近赤外線センサ７が
取り付けられる。この近赤外線センサ７は光ファイバー
８を介して光源９に接続されている。その光源９から
は、酸化ヘモグロビンによる吸収率の高い波長の近赤外
光と、酸化ヘモグロビンによる吸収率の低い２つの比較
波長の近赤外光を一組とした３波長の酸化ヘモグロビン
検出用近赤外光が照射され、さらに、脱酸化ヘモグロビ
ンによる吸収率の高い波長の近赤外光と、脱酸化ヘモグ
ロビンによる吸収率の低い２つの比較波長の近赤外光を
一組とした３波長の脱酸化ヘモグロビン検出用近赤外光
が照射される。その近赤外光は、センサ７の発光部から
パイロット２の頭部に照射され、その反射光がセンサ７
の受光部により受光される。この近赤外線センサ７は制
御装置１０に接続され、その反射光の強度に応じた信号
が制御装置１０に入力される。その制御装置１０は例え
ばマイクロコンピュータにより構成され、中央処理装置
１１と、記憶装置１２と、入出力インタフェース１３
と、クロック回路１４とを備え、そのインタフェース１
３に近赤外線センサ７が接続され、記憶装置１２に記憶
された制御プログラムに従い、パイロット２の脳内の酸
素状態をモニタする。すなわち、酸化ヘモグロビン検出
用の各近赤外光の反射強度を記憶装置１２に記憶された
検量データと比較することで酸化ヘモグロビン量を算出
すると共に、脱酸化ヘモグロビン検出用の各近赤外光の
反射強度を記憶装置に記憶された検量データと比較する
ことで脱酸化ヘモグロビン量を算出する。また、酸化ヘ
モグロビン量と脱酸化ヘモグロビン量とから全ヘモグロ
ビン量を算出する。この酸素モニタ装置は公知のものを
用いることができる。That is, a near infrared sensor 7 having a light emitting portion and a light receiving portion is attached to a helmet worn by the pilot 2. This near infrared sensor 7 is connected to a light source 9 via an optical fiber 8. From the light source 9, near-infrared light of a wavelength having a high absorption rate by oxyhemoglobin and near-infrared light of two comparative wavelengths having a low absorption rate by oxyhemoglobin are combined to form a near-wavelength for detection of oxyhemoglobin of three wavelengths. Irradiated with infrared light, the three wavelengths of near-infrared light, which has a high absorption rate by deoxygenated hemoglobin, and two near-infrared light, which has low absorption rate by deoxygenated hemoglobin, are combined. Irradiation with near infrared light for detecting deoxygenated hemoglobin. The near-infrared light is emitted from the light emitting portion of the sensor 7 to the head of the pilot 2, and the reflected light is emitted from the sensor 7
The light is received by the light receiving section of. The near infrared sensor 7 is connected to the control device 10, and a signal corresponding to the intensity of the reflected light is input to the control device 10. The control device 10 is composed of, for example, a microcomputer, and has a central processing unit 11, a storage device 12, and an input / output interface 13.
And a clock circuit 14, and its interface 1
The near-infrared sensor 7 is connected to 3 and the oxygen state in the brain of the pilot 2 is monitored according to the control program stored in the storage device 12. That is, the amount of oxyhemoglobin is calculated by comparing the reflection intensity of each near-infrared light for detecting oxyhemoglobin with the calibration data stored in the storage device 12, and the near-infrared light for detecting deoxyhemoglobin is calculated. The amount of deoxygenated hemoglobin is calculated by comparing the reflection intensity with the calibration data stored in the storage device. Further, the total hemoglobin amount is calculated from the oxyhemoglobin amount and the deoxygenated hemoglobin amount. A known device can be used as this oxygen monitoring device.
【００１３】その入出力インタフェース１３に加速度セ
ンサ１５が接続され、パイロット２に作用する下向き加
速度の大きさに対応する信号が制御装置１０に入力さ
れ、その加速度の大きさの時間変化に基づいて増加率が
演算され、これにより加速度の大きさと増加率がモニタ
される。An acceleration sensor 15 is connected to the input / output interface 13, a signal corresponding to the magnitude of the downward acceleration acting on the pilot 2 is input to the control device 10, and increases based on the time variation of the magnitude of the acceleration. The rate is calculated to monitor the magnitude of acceleration and the rate of increase.
【００１４】その記憶装置１２に、予め測定したパイロ
ットの脳内の酸素状態とパイロットに作用する下向き加
速度の大きさと増加率との関係を表すデータが記憶され
ている。すなわち、図２の上段において横軸は時間を示
し、縦軸はヘモグロビン量を示し、実線は酸化ヘモグロ
ビン量の変化を示し、破線は脱酸化ヘモグロビンの変化
を示し、一点鎖線は全ヘモグロビン量の変化を示す。ま
た、図２の下段において横軸は時間を示し、縦軸はパイ
ロットに作用する下向き加速度の大きさを示し、実線は
その加速度変化を示す。このように、パイロット２に作
用する下向き加速度の変化はパイロット２の脳内のヘモ
グロビン量の変化に対応することから、図２に示すよう
なデータを予め多数蓄積することで、重力加速度の大き
さと増加率とヘモグロビン量との関係をパターン化で
き、例えば互いの関係を表す近似式のようなデータを得
ることができる。そのようなパターン化されたデータが
記憶装置１２に記憶されている。The storage device 12 stores data representing the relationship between the previously measured oxygen state in the brain of the pilot and the magnitude of the downward acceleration acting on the pilot and the rate of increase. That is, in the upper part of FIG. 2, the horizontal axis represents time, the vertical axis represents hemoglobin amount, the solid line represents changes in oxyhemoglobin amount, the broken line represents changes in deoxygenated hemoglobin, and the dashed-dotted line represents changes in total hemoglobin amount. Indicates. In the lower part of FIG. 2, the horizontal axis represents time, the vertical axis represents the magnitude of the downward acceleration acting on the pilot, and the solid line represents the acceleration change. Thus, since the change in the downward acceleration acting on the pilot 2 corresponds to the change in the hemoglobin amount in the brain of the pilot 2, by accumulating a large number of data as shown in FIG. The relationship between the rate of increase and the amount of hemoglobin can be patterned, and data such as an approximate expression expressing the mutual relationship can be obtained. Such patterned data is stored in the storage device 12.
【００１５】そして制御装置１０は、加速度の大きさと
増加率とヘモグロビン量のモニタ値と、記憶装置１２に
記憶された上記データとを比較することで、パイロット
２の脳内の酸素状態に基づいてパイロット２の意識状態
を判定し、パイロット２が脳への酸素供給不足により意
識を喪失する前に警報信号を発する。本実施例では、入
出力インタフェース１３にライト１６とホーン１７が接
続され、その警報信号によりライト１６が点滅すると共
にホーン１７が鳴動する。また、前記加速度感応型圧力
調節バルブ６は駆動回路１８からの電気信号によりブラ
ダ４に供給する空気圧力を変動させるものとされ、その
駆動回路１８に入出力インタフェース１３を介し警報信
号が送られることにより、ブラダ４に送り込まれる空気
圧力が脈動して触覚的な警報も発せられる。Then, the control device 10 compares the monitor value of the magnitude and rate of increase of the acceleration and the amount of hemoglobin with the above data stored in the storage device 12 to determine the oxygen state in the brain of the pilot 2. The consciousness state of the pilot 2 is determined, and an alarm signal is issued before the pilot 2 loses consciousness due to insufficient oxygen supply to the brain. In this embodiment, the light 16 and the horn 17 are connected to the input / output interface 13, and the alarm 16 causes the light 16 to blink and the horn 17 to ring. Further, the acceleration sensitive pressure control valve 6 is supposed to change the air pressure supplied to the bladder 4 by an electric signal from the drive circuit 18, and an alarm signal is sent to the drive circuit 18 via the input / output interface 13. As a result, the air pressure sent to the bladder 4 pulsates and a tactile alarm is also issued.
【００１６】上記警報を発したにも拘わらずパイロット
２が意識喪失に陥った場合は、航空機のオートリカバリ
ーシステム１９にインタフェース１３を介しリカバリー
信号が発信され、自動操縦モードに切換えられて機体が
水平に維持される。そのパイロット２の意識喪失の検出
のため、操縦桿にパイロット２の握力検知センサ２０が
取り付けられ、この検知握力と脳内ヘモグロビン量に基
づいて制御装置１０が意識の有無を判断する。When the pilot 2 loses consciousness in spite of issuing the above warning, a recovery signal is transmitted to the auto recovery system 19 of the aircraft through the interface 13, and the aircraft is switched to the automatic piloting mode to make the aircraft horizontal. Maintained at. In order to detect the loss of consciousness of the pilot 2, the grip force detection sensor 20 of the pilot 2 is attached to the control stick, and the control device 10 determines whether or not there is consciousness based on the detected grip force and the amount of hemoglobin in the brain.
【００１７】なお、本発明は上記実施例に限定されるも
のではない。例えば、上記実施例ではヘモグロビン量の
検知のために３波長の近赤外光を用いたが、比較波長の
数を増やした４波長の近赤外光を用いることもできる。
また、パイロットの脳内の酸素状態をモニタするため脳
内の血液流速を検知するようにしてもよい。The present invention is not limited to the above embodiment. For example, although the near-infrared light of three wavelengths is used for detecting the amount of hemoglobin in the above embodiment, near-infrared light of four wavelengths with an increased number of comparison wavelengths may be used.
Further, the blood flow velocity in the brain may be detected to monitor the oxygen state in the brain of the pilot.
【００１８】[0018]
【発明の効果】本発明による航空機パイロットの意識検
出装置によれば、パイロットに作用する加速度の増加率
やパイロット個々の体調や個人差に応じ、その意識状態
を正確に検出でき、パイロットの意識喪失による事故防
止に寄与できる。According to the aircraft pilot consciousness detecting device of the present invention, the consciousness state can be accurately detected according to the increasing rate of acceleration acting on the pilot and the physical condition and individual difference of each pilot, resulting in loss of consciousness of the pilot. Can contribute to accident prevention.
【図１】本発明の実施例に係る航空機パイロットの意識
検出装置の構成説明図FIG. 1 is an explanatory diagram of a configuration of an aircraft pilot consciousness detection device according to an embodiment of the present invention.
【図２】加速度変化と脳内のヘモグロビン量変化との関
係を示す図FIG. 2 is a diagram showing the relationship between changes in acceleration and changes in the amount of hemoglobin in the brain.
２ パイロット ７ 近赤外線センサ １０ 制御装置 １３ 記憶装置 １５ 加速度センサ 2 Pilot 7 Near infrared sensor 10 Control device 13 Storage device 15 Acceleration sensor
───────────────────────────────────────────────────── フロントページの続き (72)発明者 野中 常彦 京都府京都市中京区西ノ京桑原町１番地株 式会社島津製作所三条工場内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tsunehiko Nonaka No. 1 Nishinokyo Kuwabara-cho, Nakagyo-ku, Kyoto City Kyoto Prefecture Shimazu Manufacturing Sanjo Factory
Claims (1)
る手段と、パイロットに作用する加速度の大きさと増加
率とをモニタする手段と、予め測定したパイロットの脳
内の酸素状態とパイロットに作用する加速度の大きさと
増加率との関係を表すデータを記憶する手段と、その酸
素状態と加速度の大きさと増加率のモニタ値を記憶され
たデータと比較することでパイロットの意識状態を判定
する判定手段とを備えることを特徴とする航空機パイロ
ットの意識検出装置。1. A means for monitoring the oxygen status in the brain of the pilot, a means for monitoring the magnitude and rate of increase of the acceleration acting on the pilot, and a premeasured oxygen status in the brain of the pilot and acting for the pilot. A means for storing data representing the relationship between the magnitude of acceleration and the rate of increase, and a means for determining the consciousness state of the pilot by comparing the oxygen state, the magnitude of acceleration and the monitor value of the rate of increase with the stored data. An aircraft pilot consciousness detection device comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3313233A JP2962006B2 (en) | 1991-10-31 | 1991-10-31 | Aircraft pilot awareness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3313233A JP2962006B2 (en) | 1991-10-31 | 1991-10-31 | Aircraft pilot awareness detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05124592A true JPH05124592A (en) | 1993-05-21 |
| JP2962006B2 JP2962006B2 (en) | 1999-10-12 |
Family
ID=18038717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3313233A Expired - Fee Related JP2962006B2 (en) | 1991-10-31 | 1991-10-31 | Aircraft pilot awareness detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2962006B2 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2008515465A (en) * | 2004-08-11 | 2008-05-15 | ユニバーシティ オブ フロリダ リサーチファウンデーション インコーポレイティッド | Method and device against gravity-induced loss of consciousness and novel pulse oximeter probe |
| JP2012514553A (en) * | 2009-01-06 | 2012-06-28 | ザ・ボーイング・カンパニー | Cruise monitoring and warning system and method |
| US8529459B2 (en) | 2007-08-08 | 2013-09-10 | Convergent Engineering, Inc. | Processing of photoplethysmography signals |
| CN103600847A (en) * | 2013-11-28 | 2014-02-26 | 哈尔滨理工大学科技园发展有限公司 | System for recording plane flying attitudes and plane driver physiological parameters |
| US9198586B2 (en) | 2002-06-20 | 2015-12-01 | University Of Florida Research Foundation, Inc. | Methods of monitoring oxygenation by positive end expiratory pressure using photoplethysmography |
| US9950112B2 (en) | 2010-08-17 | 2018-04-24 | University Of Florida Research Foundation, Incorporated | Intelligent drug and/or fluid delivery system to optimizing medical treatment or therapy using pharmacodynamic and/or pharamacokinetic data |
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1991
- 1991-10-31 JP JP3313233A patent/JP2962006B2/en not_active Expired - Fee Related
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| US9198586B2 (en) | 2002-06-20 | 2015-12-01 | University Of Florida Research Foundation, Inc. | Methods of monitoring oxygenation by positive end expiratory pressure using photoplethysmography |
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| US10368758B2 (en) | 2004-08-11 | 2019-08-06 | University Of Florida Research Foundation, Inc. | Methods and devices for central photoplethysmographic monitoring |
| JP2008515465A (en) * | 2004-08-11 | 2008-05-15 | ユニバーシティ オブ フロリダ リサーチファウンデーション インコーポレイティッド | Method and device against gravity-induced loss of consciousness and novel pulse oximeter probe |
| US8679028B2 (en) | 2004-08-11 | 2014-03-25 | University Of Florida Research Foundation, Inc. | Methods and devices for countering grativity induced loss of consciousness and novel pulse oximeter probes |
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| JP2012514553A (en) * | 2009-01-06 | 2012-06-28 | ザ・ボーイング・カンパニー | Cruise monitoring and warning system and method |
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| CN103600847A (en) * | 2013-11-28 | 2014-02-26 | 哈尔滨理工大学科技园发展有限公司 | System for recording plane flying attitudes and plane driver physiological parameters |
| CN112188865A (en) * | 2018-05-11 | 2021-01-05 | 斯佩克卓尼克斯股份有限公司 | System and method for monitoring abnormal blood oxygenation level and self-monitoring oxygenation system and method |
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