KR19980058521A - Drowsy driving warning device - Google Patents

Drowsy driving warning device Download PDF

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Publication number
KR19980058521A
KR19980058521A KR1019960077846A KR19960077846A KR19980058521A KR 19980058521 A KR19980058521 A KR 19980058521A KR 1019960077846 A KR1019960077846 A KR 1019960077846A KR 19960077846 A KR19960077846 A KR 19960077846A KR 19980058521 A KR19980058521 A KR 19980058521A
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KR
South Korea
Prior art keywords
state
steering
drowsy driving
output signal
road
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KR1019960077846A
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Korean (ko)
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김태종
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박병재
현대자동차 주식회사
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Priority to KR1019960077846A priority Critical patent/KR19980058521A/en
Publication of KR19980058521A publication Critical patent/KR19980058521A/en

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  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
  • Traffic Control Systems (AREA)

Abstract

본 발명은 운전자의 졸음상태를 감지하여 경고하여 줌으로써 졸음운전으로 인한 사고를 예방할 수 있도록 한 졸음운전 경고장치에 관한 것으로 도로상태를 인식하기 위한 주위환경 검지수단과 ; 핸들의 조향방향 감지센서와 ; 상기의 주위환경 검지수단으로부터의 출력신호에 의하여 도로상태를 판별하는 도로상태 판별수단과 ; 상기의 조향방향 감지센서로부터의 출력신호에 의하여 핸들의 조향상태를 판별하는 조향상태 판별수단과 ; 상기 도로상태 판별수단과 조향상태 판별수단에 의한 판별결과가 일치하지 않은 때는 졸음운전 상태임을 판정하는 제어부와 ; 상기 제어부의 출력신호에 의하여 동작되는 졸음운전 경보수단으로 구성된 것이다.The present invention relates to a drowsy driving warning device for preventing an accident caused by drowsy driving by detecting and warning a drowsy state of a driver, and surrounding environment detecting means for recognizing a road state; Steering direction sensor of the handle; Road condition discrimination means for discriminating a road condition by an output signal from said ambient environment detecting means; Steering state determination means for determining a steering state of the handle by an output signal from the steering direction detection sensor; A control unit for determining that the vehicle is in a drowsy driving state when the discrimination result of the road state discrimination means and the steering state discrimination means does not match; Drowsiness operation alarm means that is operated by the output signal of the control unit.

Description

졸음운전 경고장치Drowsy driving warning device

본 발명은 운전자의 졸음상태를 감지하여 경고하여 줌으로써 졸음운전으로 인하여 발생되는 사고를 예방할 수 있도록 한 졸음운전 경고장치에 관한 것이다.The present invention relates to a drowsy driving warning device to prevent an accident caused by drowsy driving by detecting and warning a drowsy state of a driver.

종래 기술에 있어서의 졸음운전 경고장치는 도 1 에 도시된 바와 같이 차량에 차량속도 감지센서와 조향각 감지센서를 설치하여 차량속도 감지센서에 의해서는 차량의 주행여부를 감지하고, 조향각 감지센서에 의해서는 핸들의 조작여부를 감지하게 된다.The drowsiness driving warning device in the prior art has a vehicle speed sensor and a steering angle sensor installed in the vehicle as shown in FIG. 1 to detect whether the vehicle is driven by the vehicle speed sensor, and by the steering angle sensor. Detects whether the handle has been manipulated.

차량의 속도감지센서에 의하여 차량이 주행상태임을 판정하고 차량이 주행상태에 있을 때 일정시간 조향각 감지센서로부터 신호가 입력되지 않으면 제어부에서는 운전자가 졸음상태에 있는 것으로 판정하게 되고 졸음운전 경보기를 작동하게 된다.If the vehicle is in the driving state by the speed sensor of the vehicle and the signal is not input from the steering angle sensor for a certain time while the vehicle is in the driving state, the controller determines that the driver is drowsy and activates the drowsy driving alarm. do.

그러나 전기한 종래의 졸음운전 경고장치에 있어서는, 차량의 직선도로 주행시 차량속도 감지센서는 온(ON)되나, 조향각 감지센서는 오프(OFF) 상태에 계속하여 있게 되므로 제어부에서는 졸음운전상태로 판단되게 되고 따라서 경보기가 오작동되므로 졸음운전 경고장치의 신뢰성에 문제를 일으키게 된다.However, in the conventional drowsy driving warning device, the vehicle speed sensor is turned on when the vehicle is driven on a straight road, but the steering angle sensor is kept in the off state, so that the controller determines that it is the drowsy driving state. As a result, the alarm malfunctions, causing problems with the reliability of the drowsy driving warning device.

본 발명은 전기한 문제점을 해결하기 위한 것으로 차량의 직선도로 주행시에도 졸음운전상태를 정확히 판별하여, 경보기의 오작동이 전혀 없는 새로운 졸음운전 경고장치를 제공함에 그 목적이 있다.The present invention has been made to solve the above-mentioned problems, and the object of the present invention is to accurately determine a drowsy driving state even when driving on a straight road of a vehicle, and to provide a new drowsy driving warning device in which there is no malfunction of an alarm.

도 1 은 본원 발명의 종래기술1 is a related art of the present invention.

도 2 는 본원 발명의 졸음운전 경고장치의 불럭다이야그램2 is a block diagram of the drowsiness operation warning device of the present invention.

이를 위한 본 발명은 도로상태를 인식하기 위한 주위환경 검지수단과 ; 핸들의 조향방향 감지센서와 ; 상기의 주위환경 검지수단으로부터의 출력신호에 의하여 도로상태를 판별하는 도로상태 판별수단과 ; 상기의 조향방향 감지센서로부터의 출력신호에 의하여 핸들의 조향상태를 판별하는 조향상태 판별수단과 ; 상기 도로상태 판별수단과 조향상태 판별수단에 의한 판별결과가 일치하지 않은 때는 졸음운전 상태임을 판정하는 제어부와 ; 상기 제어부의 출력신호에 의하여 동작되는 졸음운전 경보수단으로 구성된다.The present invention for this purpose and the surrounding environment detection means for recognizing road conditions; Steering direction sensor of the handle; Road condition discrimination means for discriminating a road condition by an output signal from said ambient environment detecting means; Steering state determination means for determining a steering state of the handle by an output signal from the steering direction detection sensor; A control unit for determining that the vehicle is in a drowsy driving state when the discrimination result of the road state discrimination means and the steering state discrimination means does not match; Drowsiness operation alarm means is operated by the output signal of the control unit.

이하 본 발명의 실시예를 첨부도면에 의하여 상세히 설명한다.Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

도 2 에 도시된 바와 같이, 카메라 등의 주위환경 검지수단을 차량에 설치하고, 스티어링 칼럼에는 공지의 조향방향 감지센서가 설치되도록 구성된다.As shown in FIG. 2, a surrounding environment detecting means such as a camera is installed in a vehicle, and a steering direction detection sensor known in the steering column is installed.

전기의 주위환경 검지수단에서는 카메라 등에 의하여 도로환경을 인식하게 되고, 인식된 주위환경을 제어부로 출력하게 된다.The electric surrounding environment detecting means recognizes the road environment by a camera or the like, and outputs the recognized ambient environment to the controller.

제어부에서는 주위환경 검지수단으로부터 인가된 신호를 바탕으로 공지의 에지 디텍션(EDGE DETECTION) 방법에 의하여 도로의 굽은 상태와 자차의 차선내의 존재를 판단하게 된다.The control unit determines the bent state of the road and the presence of the own vehicle in the lane by a known edge detection method based on a signal applied from the surrounding environment detecting means.

조향방향 감지센서는 핸들의 조작에 의한, 차량이 좌회전 상태·우회전 상태, 직진상태에 따라 각각 다른 신호를 제어부로 출력하고 제어부에서는 이 신호에 의하여 핸들의 조향방향을 판별하게 된다.The steering direction detection sensor outputs a different signal to the control unit according to the left turn state, the right turn state, and the straight state by the steering wheel operation, and the control unit determines the steering direction of the steering wheel based on this signal.

제어부에서는 주위환경 검지수단의 출력신호에 의한 도로상태와 조향방향 감지센서의 출력신호에 의한 조향방향이 일치되는 지를 비교하여, 만약 일치하지 않으면 운전자의 졸음운전상태로 판단하게 된다.The control unit compares whether the road condition by the output signal of the surrounding environment detection means and the steering direction by the output signal of the steering direction detection sensor match, and if it does not match, determines that the driver's drowsy driving state.

이렇게 졸음운전상태로 판별되면 제어부는 차량내에 설치된 경고버저를 울려주고, 후미차량의 운전자가 경각심을 갖을 수 있도록 비상 등을 온(ON) 시키는 졸음운전 경고수단으로 구성된다.When it is determined that the drowsy driving state is determined, the control unit is configured with a drowsy driving warning means for ringing a warning buzzer installed in the vehicle and turning on an emergency light to alert the driver of the rear vehicle.

이상과 같이 본 발명은 도로상태와 운전자의 조향방향을 서로 비교하여 일치되지 않을때는 졸음운전 상태임을 경고하게 되고, 따라서 운전자의 졸음운전 상태를 정확하게 판단할 수 있게 되는 효과가 있다.As described above, the present invention compares the road condition with the steering direction of the driver and warns that the driver is in a drowsy driving state when the driver is not matched with each other. Thus, the drowsy driving state of the driver can be accurately determined.

Claims (1)

도로상태를 인식하기 위한 주위환경 검지수단과 ;Surrounding environment detection means for recognizing road conditions; 핸들의 조향방향 감지센서와 ;Steering direction sensor of the handle; 상기의 주위환경 검지수단으로부터의 출력신호에 의하여 도로상태를 판별하는 도로상태 판별수단과 ;Road condition discrimination means for discriminating a road condition by an output signal from said ambient environment detecting means; 상기의 조향방향 감지센서로부터의 출력신호에 의하여 핸들의 조향상태를 판별하는 조향상태 판별수단과 ;Steering state determination means for determining a steering state of the handle by an output signal from the steering direction detection sensor; 상기 도로상태 판별수단과 조향상태 판별수단에 의한 판별결과가 일치하지 않은 때는 졸음운전 상태임을 판정하는 제어부와 ;A control unit for determining that the vehicle is in a drowsy driving state when the discrimination result of the road state discrimination means and the steering state discrimination means does not match; 상기 제어부의 출력신호에 의하여 동작되는 졸음운전 경보수단과 ;Drowsy driving alarm means operated by an output signal of the controller; 를 포함하는 것을 특징으로 하는 차량의 졸음운전 경보장치Drowsiness driving alarm device of a vehicle comprising a
KR1019960077846A 1996-12-30 1996-12-30 Drowsy driving warning device KR19980058521A (en)

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KR1019960077846A KR19980058521A (en) 1996-12-30 1996-12-30 Drowsy driving warning device

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