JPS627012B2 - - Google Patents
Info
- Publication number
- JPS627012B2 JPS627012B2 JP56206436A JP20643681A JPS627012B2 JP S627012 B2 JPS627012 B2 JP S627012B2 JP 56206436 A JP56206436 A JP 56206436A JP 20643681 A JP20643681 A JP 20643681A JP S627012 B2 JPS627012 B2 JP S627012B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- steering
- alarm
- sudden steering
- sudden
- 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.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims description 15
- 230000036626 alertness Effects 0.000 claims description 8
- 230000003247 decreasing effect Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/06—Alarms for ensuring the safety of persons indicating a condition of sleep, e.g. anti-dozing alarms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
- B60K28/02—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver
- B60K28/06—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver responsive to incapacity of driver
- B60K28/066—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver responsive to incapacity of driver actuating a signalling device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2540/00—Input parameters relating to occupants
- B60W2540/18—Steering angle
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
Description
【発明の詳細な説明】
本発明は覚醒度の低下の検出を適確にして警報
を発するようにした車両用警報装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vehicle alarm system that accurately detects a decrease in alertness level and issues an alarm.
従来の車両用警報装置として、例えば、１秒間
に同一方向に12度以上の操舵角変化を伴うステア
リング操作があつたとき（以下「急操舵」とい
う）、運転者の覚醒度が低下したと判断して警報
を発するようにしたものである（実開昭55−
121732）。 Conventional vehicle warning systems determine that the driver's level of alertness has decreased when, for example, there is a steering operation that involves a change in steering angle of 12 degrees or more in the same direction per second (hereinafter referred to as "sudden steering"). It was designed to issue an alarm when
121732).
しかし、従来の車両用警報装置によれば、急操
舵状態を一回検出したとき警報を発するようにな
つているため、道路上の落下物や穴等を避けよう
として緊急回避した場合でも警報が発せられるこ
とになり、そのため、覚醒度の低下を誤検出する
恐れがある。 However, according to conventional vehicle warning systems, a warning is issued when a sudden steering condition is detected once, so even if an emergency evasion is made to avoid a falling object or hole on the road, the warning is not issued. Therefore, there is a risk of erroneously detecting a decrease in alertness.
本発明は、上記に鑑みてなされたものであり覚
醒度の低下の検出を適確にするため、予め定めた
所定時間内に急操舵状態を所定回数以上検出した
とき覚醒度が低下したと判断して警報するように
車両用警報装置を提供するものである。 The present invention has been made in view of the above, and in order to accurately detect a decrease in the alertness level, it is determined that the alertness level has decreased when a sudden steering condition is detected a predetermined number of times or more within a predetermined time period. The present invention provides a vehicle alarm device that issues an alarm when
以下本発明による車両用警報装置を詳細に説明
する。 The vehicle warning device according to the present invention will be explained in detail below.
第１図は本発明の第１の実施例を示し、ステア
リング操作の操舵角に応じた操舵角信号を出力す
る操舵角検出回路１と、操舵角信号を入力し、単
位時間の同一方向の操舵角変化が予め定めた値以
上になつたとき急操舵信号を出力する急操舵検出
回路２と、急操舵信号を計数し、予め定めた所定
時間毎にクロツク発生回路３から出力されるクロ
ツクパルスによつて計数値をリセツトされ、該計
数値が例えば２になつたとき警報信号を出力する
カウンタ４と、警報信号によつて警報を発する警
報部５（該警報は、音、音声、視覚表示を問わな
い）を有している。 FIG. 1 shows a first embodiment of the present invention, which includes a steering angle detection circuit 1 that outputs a steering angle signal corresponding to the steering angle of a steering operation, and a steering angle detection circuit 1 that inputs the steering angle signal and performs steering in the same direction for a unit time. A sudden steering detection circuit 2 outputs a sudden steering signal when the angle change exceeds a predetermined value, and a clock pulse is generated from a clock generating circuit 3 that counts the sudden steering signals and outputs them at predetermined intervals. a counter 4 which outputs an alarm signal when the counted value reaches, for example, 2; ).
以上の構成において、カウンタ４がクロツク発
生回路３から出力されるクロツクパルスの発生間
隔である所定時間毎に急操舵信号を計数し、計数
値が２になつたとき警報信号を出力して警報部５
に警報を発生させる。 In the above configuration, the counter 4 counts the sudden steering signal at every predetermined time interval which is the generation interval of the clock pulse outputted from the clock generating circuit 3, and when the count value reaches 2, outputs an alarm signal to the alarm unit 5.
generate an alarm.
第２図は本発明の第２の実施例を示し、第１の
実施例と同一の部分は同一の引用数字で示したの
で重復する説明は省略する（以下同様とする）
が、カウンタ４を有する判定部１２が新たに設け
られている。判定部１２は、後述する単安定マル
チバイブレータ７が「０」のときインバータ８の
「１」によつて急操舵信号を通すAND回路６と、
該急操舵信号によつて予め定めた所定時間オンす
る前記単安定マルチバイブレータ７と、単安定マ
ルチバイブレータ７の立下りを検出し、その検出
によつてカウンタ４をリセツトする立下り検出回
路１１（図示の如く、インバータ９、AND回路
１０、および抵抗、コンデンサより成る）とを有
している。 FIG. 2 shows a second embodiment of the present invention, and parts that are the same as those in the first embodiment are indicated by the same reference numerals, so repeated explanations will be omitted (the same applies hereinafter).
However, a determining section 12 having a counter 4 is newly provided. The determination unit 12 includes an AND circuit 6 that passes a sudden steering signal by the inverter 8 at “1” when the monostable multivibrator 7 (described later) is at “0”;
The monostable multivibrator 7 is turned on for a predetermined period of time in response to the sudden steering signal, and a fall detection circuit 11 ( As shown in the figure, it has an inverter 9, an AND circuit 10, and a resistor and a capacitor.
以上の構成において、第３図のタイムチヤート
によりその操作を説明するに、急操舵検出回路２
より急操舵信号が出力されると単安定マルチバイ
ブレータ７が所定時間ｔオンする。 In the above configuration, the operation of the sudden steering detection circuit 2 will be explained using the time chart shown in FIG.
When a sharper steering signal is output, the monostable multivibrator 7 is turned on for a predetermined time t.
カウンタ４は急操舵信号を計数し、計数値が２
になつたとき警報信号４ａを出力する。単安定マ
ルチバイブレータ７がオフになつたとき立下り検
出回路１１が立下り信号を出力してカウンタ４を
リセツトする。警報信号４ａが出力されている間
警報部５が警報を判定する。 Counter 4 counts sudden steering signals, and the count value is 2.
When this happens, an alarm signal 4a is output. When the monostable multivibrator 7 is turned off, the fall detection circuit 11 outputs a fall signal to reset the counter 4. While the alarm signal 4a is being output, the alarm unit 5 determines an alarm.
第４図は本発明の第３の実施例を示し、操舵角
検出回路１と、急操舵検出回路２と、警報部５に
加えて、急操舵検出回路２の急操舵信号を計数し
て計数値に応じた端子１、２、…………ｎに順次
出力し、端子ｎの出力によつて計数値をリセツト
されるカウンタ１３と、第２の実施例によつて説
明された判定部１２（１），１２（２），…………
１２（Ｎ）を有している。該判定部１２（１），
１２（２），…………１２（Ｎ）は、カウンタ１
３の対応する端子１、２、…………ｎに出力があ
つたとき所定時間オンし、その時間にわたつて急
操舵信号を計数し、計数値が２になつたときOR
回路１７を介して警報信号を警報部５へ出力す
る。 FIG. 4 shows a third embodiment of the present invention, in which, in addition to the steering angle detection circuit 1, the sudden steering detection circuit 2, and the alarm section 5, the sudden steering signal of the sudden steering detection circuit 2 is counted and calculated. A counter 13 that sequentially outputs to terminals 1, 2, ... n according to the numerical value and whose counted value is reset by the output of terminal n, and the determination section 12 explained in the second embodiment. (1), 12(2),……
12 (N). The determining unit 12(1),
12(2),……12(N) is counter 1
When the output is applied to the corresponding terminals 1, 2, ......n of 3, it is turned on for a predetermined period of time, and the sudden steering signal is counted over that time, and when the count value reaches 2, the OR
An alarm signal is output to the alarm section 5 via the circuit 17.
以上の構成において、第５図のタイムチヤート
によりその操作を説明するに、急操舵信号が急操
舵検出回路２から出力されると、カウンタ１３が
計数し、順次その端子１、２、…………ｎに出力
する。この出力によつてその端子１、２、………
…ｎに対応した判定部１２（１），１２（２），…
………１２（Ｎ）が順次所定時間オンし（第２図
の単安定マルチバイブレータ７のオンに相当す
る）、このオン時間中それぞれ急操舵信号を計数
する（第２図のカウンタ４の計数に相当する）。
この計数値が３に達したとき警報信号４ａを出力
し、OR回路１７を介して警報部５に与えられ
る。 In the above configuration, the operation will be explained using the time chart shown in FIG. 5. When a sudden steering signal is output from the sudden steering detection circuit 2, the counter 13 counts, and the terminals 1, 2, . . . ...Output to n. Depending on this output, the terminals 1, 2, etc.
... Determination units 12 (1), 12 (2), ... corresponding to n
...... 12 (N) are turned on sequentially for a predetermined period of time (corresponding to the turning on of the monostable multivibrator 7 in Fig. 2), and during this on time, each sudden steering signal is counted (counter 4 in Fig. 2 is turned on). ).
When this count reaches 3, an alarm signal 4a is output, and is given to the alarm section 5 via the OR circuit 17.
第６図は本発明の第４の実施例を示し、急操舵
検出回路２の急操舵信号を計数し、順次端子１、
２、３に出力するカウンタ１３と、カウンタ１３
の端子１、２、３に接続され、端子１、２、３の
出力によつて所定時間オンするリトリガブル単安
定マルチバイブレータ１４ａ，１４ｂ，１４ｃ
と、単安定マルチバイブレータ１４ａ，１４ｂ，
１４ｃの出力に接続されたAND回路１５を有し
ている。 FIG. 6 shows a fourth embodiment of the present invention, in which the sudden steering signals of the sudden steering detection circuit 2 are counted, and the terminals 1,
Counter 13 that outputs to 2 and 3;
retriggerable monostable multivibrators 14a, 14b, 14c connected to terminals 1, 2, and 3 of
and monostable multivibrators 14a, 14b,
It has an AND circuit 15 connected to the output of 14c.
以上の構成において、第７図のタイムチヤート
によりその操作を説明するに、カウンタ１３が順
次端子１、２、３に出力する度に単安定マルチバ
イブレータ１４ａ，１４ｂ，１４ｃが所定時間ｔ
オンする。このオン時間中に更にトリガされる
と、オン時間が延長する（ｔ＋ｔt′）。この単安
定マルチバイブレータ１４ａ，１４ｂ，１４ｃに
AND条件が成立したときAND回路１５が警報信
号を出力し、警報部５に警報を発生させる。 In the above configuration, the operation will be explained with reference to the time chart in FIG.
Turn on. Further triggering during this on-time will extend the on-time (t+t t '). These monostable multivibrators 14a, 14b, 14c
When the AND condition is met, the AND circuit 15 outputs an alarm signal, causing the alarm section 5 to generate an alarm.
以上説明した通り、本発明による車両用警報装
置によれば、予め定めた所定時間内に急操舵状態
を所定回数以上検出したとき覚醒度が低下したと
判断して警報するようにしたため、誤検出をなく
し、覚醒度の低下の検出を適確にすることができ
る。 As explained above, according to the vehicle warning device according to the present invention, when a sudden steering condition is detected more than a predetermined number of times within a predetermined time period, it is determined that the alertness level has decreased and an alarm is issued. This makes it possible to accurately detect a decrease in alertness.
第１図は本発明の第１の実施例を、第２図は本
発明の第２の実施例を、第４図は本発明の第３の
実施例を、第６図は本発明の第４の実施例をそれ
ぞれ示すブロツク図。第３図は第２図のタイムチ
ヤート。第５図は第４図のタイムチヤート。第７
図は第６図のタイムチヤート。
符号の説明、１……操舵角検出回路、２……急
操舵検出回路、３……クロツク発生回路、４，１
３……カウンタ、５……警報部、７……単安定マ
ルチバイブレータ、１１……立下り検出回路、１
２，１２（１），１２（２），１２（Ｎ）……判定
部、１４ａ，１４ｂ，１４ｃ……トリガブル単安
定マルチバイブレータ。
FIG. 1 shows a first embodiment of the invention, FIG. 2 shows a second embodiment of the invention, FIG. 4 shows a third embodiment of the invention, and FIG. 6 shows a third embodiment of the invention. FIG. 4 is a block diagram showing each of the fourth embodiments. Figure 3 is a time chart of Figure 2. Figure 5 is a time chart of Figure 4. 7th
The figure is the time chart shown in Figure 6. Explanation of symbols, 1... Steering angle detection circuit, 2... Sudden steering detection circuit, 3... Clock generation circuit, 4, 1
3... Counter, 5... Alarm section, 7... Monostable multivibrator, 11... Fall detection circuit, 1
2, 12(1), 12(2), 12(N)...determination section, 14a, 14b, 14c...triggerable monostable multivibrator.
Claims (1)
覚醒度の低下を検出して警報する装置において、 予め定めた角度以上の同一方向の操舵角変化
が、予め定めた速度以上で行われたとき急操舵信
号を出力する急操舵検出手段と、 前記急操舵信号が予め定めた時間内に予め定め
た回数出力されたとき警報信号を出力する判定手
段を備えたことを特徴とする車両用警報装置。[Scope of Claims] 1. In a device that detects and warns a decrease in a driver's alertness based on the driver's steering operation, the steering angle changes in the same direction by a predetermined angle or more at a predetermined speed or more. a sudden steering detection means that outputs a sudden steering signal when the sudden steering signal is performed; and a determining means that outputs a warning signal when the sudden steering signal is output a predetermined number of times within a predetermined time. Vehicle warning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56206436A JPS58105830A (en) | 1981-12-21 | 1981-12-21 | Vehicular alarming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56206436A JPS58105830A (en) | 1981-12-21 | 1981-12-21 | Vehicular alarming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58105830A JPS58105830A (en) | 1983-06-23 |
| JPS627012B2 true JPS627012B2 (en) | 1987-02-14 |
Family
ID=16523339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56206436A Granted JPS58105830A (en) | 1981-12-21 | 1981-12-21 | Vehicular alarming device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58105830A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6415107U (en) * | 1987-07-16 | 1989-01-25 | ||
| JPH0158110U (en) * | 1987-10-07 | 1989-04-11 | ||
| JPH01143908A (en) * | 1987-11-30 | 1989-06-06 | Shinetsu Eng Kk | Thin film thickness measuring instrument |
| JPH0523684B2 (en) * | 1987-06-29 | 1993-04-05 | Sekisui Plastics |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101462067B1 (en) * | 2013-06-04 | 2014-11-14 | 경희대학교 산학협력단 | Apparatus and method for detecting drowsy driving using vehicle information |
-
1981
- 1981-12-21 JP JP56206436A patent/JPS58105830A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0523684B2 (en) * | 1987-06-29 | 1993-04-05 | Sekisui Plastics | |
| JPS6415107U (en) * | 1987-07-16 | 1989-01-25 | ||
| JPH0158110U (en) * | 1987-10-07 | 1989-04-11 | ||
| JPH01143908A (en) * | 1987-11-30 | 1989-06-06 | Shinetsu Eng Kk | Thin film thickness measuring instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58105830A (en) | 1983-06-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4611199A (en) | Alarm system and method for sensing a stand-by state in a driver drowsiness detection system | |
| US4725824A (en) | Doze prevention system | |
| EP0059225A1 (en) | Sleeping driver warning device for vehicle | |
| US4450438A (en) | Drowsiness alarm system for a vehicle | |
| WO1982001167A1 (en) | Dozing driver warning system for vehicle | |
| KR940018270A (en) | Vehicle drowsiness alarm device and alarm method | |
| EP0060306B1 (en) | Sleeping driver warning device for vehicle | |
| WO1982001168A1 (en) | Dozing driver warning system | |
| JPS627012B2 (en) | ||
| JPS58115384A (en) | Obstacle detector for automobile | |
| JPS62218873A (en) | Wheel speed identifying and processing system | |
| JP3338096B2 (en) | Abnormal operation detection method and abnormal operation alarm device | |
| JPH0737995B2 (en) | Failure detection device for rotation sensor | |
| JP2000203302A (en) | Dangerous operation judging device for vehicle | |
| JPH0512169B2 (en) | ||
| JPS58175094A (en) | Alarm for vehicle | |
| JPS6153250B2 (en) | ||
| JPS6221478Y2 (en) | ||
| JPS6117691B2 (en) | ||
| JPH01152282U (en) | ||
| JPS6125564B2 (en) | ||
| JPS61187100A (en) | Collision preventor for vehicle | |
| JPS5916968B2 (en) | vehicle safety equipment | |
| JPS6290233U (en) | ||
| JPH07117517A (en) | Detector for dozing at wheel |