KR0140432B1 - Collision warning device of a car and method thereof - Google Patents

Collision warning device of a car and method thereof

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Publication number
KR0140432B1
KR0140432B1 KR1019950066504A KR19950066504A KR0140432B1 KR 0140432 B1 KR0140432 B1 KR 0140432B1 KR 1019950066504 A KR1019950066504 A KR 1019950066504A KR 19950066504 A KR19950066504 A KR 19950066504A KR 0140432 B1 KR0140432 B1 KR 0140432B1
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KR
South Korea
Prior art keywords
voltage
vehicle
speed
distance
car
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Application number
KR1019950066504A
Other languages
Korean (ko)
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KR970037703A (en
Inventor
유길환
Original Assignee
김주용
현대전자산업주식회사
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Application filed by 김주용, 현대전자산업주식회사 filed Critical 김주용
Priority to KR1019950066504A priority Critical patent/KR0140432B1/en
Publication of KR970037703A publication Critical patent/KR970037703A/en
Application granted granted Critical
Publication of KR0140432B1 publication Critical patent/KR0140432B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
    • B60Q1/525—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking automatically indicating risk of collision between vehicles in traffic or with pedestrians, e.g. after risk assessment using the vehicle sensor data
    • B60Q1/535—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking automatically indicating risk of collision between vehicles in traffic or with pedestrians, e.g. after risk assessment using the vehicle sensor data to prevent rear-end collisions, e.g. by indicating safety distance at the rear of the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/0088—Details of electrical connections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/46—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for giving flashing caution signals during drive, other than signalling change of direction, e.g. flashing the headlights or hazard lights
    • 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
    • B60R16/03—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 for supply of electrical power to vehicle subsystems or for
    • B60R16/033—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 for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/30—Sensors
    • B60Y2400/301—Sensors for position or displacement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/30—Sensors
    • B60Y2400/303—Speed sensors

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

본 발명은 자동차 후면 충돌 경보 장치 및 방법에 관한 것으로, 일반적으로 야간, 안개길, 커브길 등 시계가 나쁜 경우에 앞면과 측면만을 경보 장치로 알릴 수 있었고, 후방 자동차와의 거리와 속도는 예상할 수 없어 사고를 발생시키는 문제점이 있으므로, 본 발명은 이러한 문제점을 해결하기 위해서 자동차 후면에 레이져 센서를 부착하여 후방 자동차와의 속도와 거리를 측정하여 위험을 경보하여 충돌을 방지함으로써, 후방 자동차와의 사고를 미연에 방지할 수 있다.The present invention relates to a vehicle rear collision warning device and method, and in general, when the clock is bad, such as night, fog road, curve road could be informed only to the front and side of the alarm device, the distance and speed with the rear car can be expected Since there is a problem that can not cause an accident, the present invention to solve this problem by attaching a laser sensor on the rear of the car to measure the speed and distance with the rear car to alert the danger to prevent collision, The accident can be prevented in advance.

Description

자동차 후면 충돌 경보 장치 및 방법Car Rear Collision Alarm Device and Method

제 1 도는 본 발명의 자동차 후면 충돌 경보 장치의 블럭도,1 is a block diagram of a rear collision warning device of the present invention,

제 2 도는 본 발명의 동작을 나타내는 순서도이다.2 is a flowchart showing the operation of the present invention.

*도면의 주요 부분에 대한 부호의 명칭** Names of symbols for main parts of drawings *

10 : 전압 조정부11 : 전압 조정기10: voltage regulator 11: voltage regulator

20 : 속도 센서 인터페이스부20: speed sensor interface

30 : 레이져 센서 인터페이스부30: laser sensor interface unit

40 : 마이크로 컴퓨터50 : 비상등 드라이브40: microcomputer 50: emergency light drive

본 발명은 자동차 후면 충돌 경보 장치(CWS : Collission Warning System) 및 방법에 관한 것으로, 특히 레이져 센서를 이용 후방 자동차의 속도, 거리를 측정하여 위험을 경보함으로써 충돌을 방지하는 자동차 후면 충돌 경보 장치 및 방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle collision warning system (CWS) and a method, and more particularly to a vehicle rear collision warning device and method for preventing a collision by measuring a speed and a distance of a rear vehicle using a laser sensor to alert a danger. It is about.

일반적으로 충돌 경보 장치라고 하면, 자동차의 앞면이나 측면에만 적용하여 충돌 사고가 일어날 위험한 거리일 경우에 운전자에게 앞면과 측면에 대한 충돌 경보를 하여 사고를 방지하는 장치 뿐이었다.Generally speaking, the collision warning device was applied only to the front or side of the car to prevent the accident by giving the driver a collision warning on the front and side when a dangerous accident would occur.

그러므로, 시계가 나쁜 야간이나 안개길, 커브길 등이나 급정거시 후방 자동차와의 사고는 경보에 의해 방지할 수 없으므로 뒤에서 따라오던 자동차에 의해 충돌되는 사고가 빈번하게 일어나 인명 사고가 잦은 문제점이 있었다.Therefore, when the clock is bad at night, fog roads, curve roads, or accidents with the rear car at the time of sudden stop can not be prevented by the alarm, accidents frequently occurred due to the car following the back there was a problem that frequent accidents.

따라서, 본 발명은 이러한 문제점을 해결하기 위해서 다음과 같은 원리를 특징으로 한다.Accordingly, the present invention is characterized by the following principle to solve this problem.

자동차 후면에 레이져 센서를 장착하고 후방 자동차와의 거리, 후방 자동차와 자신의 자동차 속도를 상대 분석하여 충돌 위험시 경고등을 자동으로 점등시켜 사고를 미연에 방지하는 것이다.It is equipped with a laser sensor on the rear of the car, and analyzes the distance from the rear car, the speed of the rear car and its own car, and automatically turns on a warning light in case of a collision, thereby preventing accidents.

이하 도면을 참조하여 설명하면 다음과 같다.A description with reference to the drawings as follows.

본 발명의 자동차 후면 충돌 경보 장치는 제 1 도에서 도시한 바와 같이, 베터리의 12V 전압이 인가되면 역전압 방지용 제너 다이오드(ZD1), 정류 다이오드(D1), 교류 차단용 콘덴서(C1)를 거쳐 전압 조정기(11)로 입력되어 5V로 변환시키는 전압 조정부(10)와; 속도 센서에서 자동차 속도가 감지되면 정류용 다이오드(D2), 바이어스 저항(R1, R3), 회로 안정용 저항(R2), 전압 분할용 저항(R4)을 거쳐 연산 증폭기(OP-Amp1)로 입력되어 속도를 증폭하여 바이어스 저항(R5)을 거쳐 마이크로 컴퓨터의 Vin핀으로 입력시키는 속도 센서 인터페이스부(20)와; 레이져 센서에서 후방차의 위치를 감지하여 입력된 신호는 하이패스 콘덴서(C2, C3), 회로 안정용 저항(R6, R9)과 콘덴서(C4), 역전압 방지용 제너 다이오드(ZD2), 바이어스용 저항(R7, R8, R10, R11, R14), 전압 분할용 저항(R12)을 거쳐 연산 증폭기(OP-Amp2)로 입력되어 증폭된 신호를 마이크로 컴퓨터의 Sen핀에 입력시키는 레이져 센서 인터페이스부(30); 상기 속도 센서 인터페이스부(20)를 통해 마이크로 컴퓨터의 Vin핀에 입력된 신호를 받아 자신의 자동차 속도를 계산하고, 상기 레이져 센서 인터페이스부(30)를 통해 마이크로 컴퓨터의 Sen핀에 입력된 신호를 받아, 후방 자동차와의 거리, 후장 자동차와의 속도를 계산하여 필요시 비상등까지 자동으로 점등할 수 있는 마이크로 컴퓨터(40) 및; 상기 마이크로 컴퓨터(40)에서 입력된 차량의 거리와 속도 계산값에 의해 마이크로 컴퓨터(40) Mon핀의 출력 신호는 전압 분할용 저항(R15), 바이어스 저항(R16)을 거치고, 마이크로 컴퓨터(40) Dri핀의 출력 신호는 바이어스 저항(R17)을 거쳐 FET의 게이트로 입력되어 전류를 제어한 후 드레인으로 출력된 전압은 마이크로 컴퓨터(40)의 Mon핀에서 출력된 신호와 함께 가해져서 충돌 위험 발생시 비상등을 구동하는 비상등 드라이브(50)로 구성된다.As shown in FIG. 1, when the 12V voltage of the battery is applied, the vehicle rear collision warning device of the present invention passes through a zener diode ZD1 for preventing reverse voltage, a rectifier diode D1, and an AC blocking capacitor C1. A voltage adjusting unit 10 input to the regulator 11 and converting the voltage into 5V; When the vehicle speed is detected by the speed sensor, it is input to the operational amplifier (OP-Amp1) through the rectifier diode (D2), the bias resistors (R1, R3), the circuit stability resistor (R2), and the voltage divider resistor (R4). A speed sensor interface unit 20 for amplifying and inputting it to the Vin pin of the microcomputer through the bias resistor R5; The signal inputted by detecting the position of the rear vehicle is detected by the laser sensor, and the input signal is a high pass capacitor (C2, C3), a circuit stabilizing resistor (R6, R9) and a capacitor (C4), a zener diode (ZD2) for preventing reverse voltage, and a bias resistor ( A laser sensor interface unit 30 for inputting an amplified signal input to an operational amplifier OP-Amp2 through R7, R8, R10, R11, and R14 and a voltage division resistor R12 to the Sen pin of the microcomputer; Receives a signal input to the Vin pin of the microcomputer through the speed sensor interface unit 20, calculates its own car speed, and receives a signal input to the Sen pin of the microcomputer through the laser sensor interface unit 30 A microcomputer 40 capable of automatically lighting up to an emergency light when necessary by calculating a distance from a rear car and a rear car; The output signal of the Mon pin of the microcomputer 40 passes through the voltage divider resistor R15 and the bias resistor R16 based on the calculated distance and speed of the vehicle input from the microcomputer 40, and the microcomputer 40 The output signal of the Dri pin is input to the gate of the FET through the bias resistor (R17) to control the current, and the voltage output to the drain is applied together with the signal output from the Mon pin of the microcomputer 40 so that an emergency light may occur when a collision risk occurs. It consists of an emergency light drive 50 for driving.

이와 같이 구성한 본 발명의 동작을 설명하면, 전압 조정부(10)에서 배터리 전압 12V를 5V로 변환시켜 전압을 인가하면, 속도 센서에서 후방 자동차와 자신의 자동차 속도를 속도 센서 인터페이스부(20)를 거쳐 상대 분석한 신호와, 자동차 후면에 장착된 레이져 센서에서 후방차와의 차량 거리를 감지한 후 레이져 센서 인터페이스부(30)에서 거리를 분석한 신호를 마이크로 컴퓨터(40)에 입력해 자신의 자동차 속도를 계산하고, 후방 자동차와의 거리, 후방 자동차의 속도를 계산하여 충돌 위험 발생시 비상등 드라이브(50)를 구동하여 비상등을 점등시키는 것이다.Referring to the operation of the present invention configured as described above, when the voltage adjusting unit 10 converts the battery voltage 12V to 5V and applies a voltage, the speed sensor passes the rear vehicle and its own vehicle speed through the speed sensor interface unit 20. After detecting the relative analysis signal and the vehicle distance from the rear vehicle by the laser sensor mounted on the rear of the vehicle, the signal analyzed by the laser sensor interface unit 30 is input to the microcomputer 40 to input the vehicle speed. To calculate the distance to the rear car, the speed of the rear car to drive the emergency light drive 50 in the event of a collision risk to turn on the emergency light.

본 발명의 동작 과정을 제 2 도의 순서도를 참조하여 설명하면, 배터리의 일정 전압을 동작 상태에서 적절한 전압으로 다운시켜 조정하는 제 1 단계(S1)와; 상기 제 1 단계(S1)에서 조정된 전압이 인가되면, 후방차와 자신의 자동차 속도를 감지하여 상대 분석하는 제 2 단계(S2)와; 후방차와 자신의 자동차와의 차량간 거리를 감지하여 분석하는 제 3 단계(S3)와; 상기 제 2 단계(S2)와 제 3 단계(S3)에서 분석된 속도와 거리를 입력하여 자신의 자동차와 후방차의 거리, 속도를 계산하는 제 4 단계(S4)와; 상기 제 4 단계(S4)에서 계산된 값으로 거리와 속도가 적당한지 충돌 위험이 있는지 판단하여 적당하면 끝내는 제 5 단계(S5) 및; 상기 제 5 단계(S5) 판단 후 충돌 위험이 있으면 비상등을 점등하는 제 6 단계(S6)를 동작한다.Referring to the flow chart of the present invention with reference to the flow chart of Figure 2, the first step (S1) to adjust the predetermined voltage of the battery down to the appropriate voltage in the operating state; A second step (S2) of detecting a relative difference between the rear vehicle and the vehicle speed when the adjusted voltage is applied in the first step (S1); A third step (S3) of detecting and analyzing a distance between the vehicle between the rear car and the vehicle; A fourth step (S4) of calculating the distance and the speed of the own car and the rear car by inputting the speed and the distance analyzed in the second step (S2) and the third step (S3); A fifth step S5 of determining whether the distance and the speed are appropriate or whether there is a risk of collision by using the value calculated in the fourth step S4; After the fifth step S5 is determined, if there is a risk of collision, the sixth step S6 of turning on the emergency light is operated.

따라서, 앞면과 측면 충돌뿐만 아니라 후방 자동차와의 속도와 거리를 센서로 감지하고 비상등으로 확인함으로써, 충돌을 미연에 방지하여 운전자의 안전을 높일 수 있다.Therefore, by detecting the speed and distance of the rear car as well as the front and side collision with a sensor and confirming with an emergency light, it is possible to prevent the collision in advance to increase the safety of the driver.

이상에서 상세히 설명한 바와 같이 본 발명은, 후방 자동차와의 충돌에 주안점을 둠으로써 급정차, 안개길, 야간 주행 중 사고를 줄이고, 기존 전자 제어 장치에 기능을 추가할 수 있으므로 경제성이 뛰어난 효과가 있다.As described in detail above, the present invention focuses on collision with the rear vehicle, thereby reducing accidents during sudden stops, fog roads, and night driving, and adding functions to existing electronic control devices, thereby providing excellent economic efficiency. .

Claims (6)

자동차 후면 충돌 경보 장치에 있어서,In the car rear collision warning device, 배터리의 일정 전압이 인가되면 다운시켜 적절한 동작 상태 전압으로 조정하는 전압 조정부(10)와; 상기 전압 조정부(10)에서 전압 조정 후 속도 센서에서 속도를 감지하여 마이크로 컴퓨터로 신호 전달하는 속도 센서 인터페이스부(20)와; 레이져 센서에서 후방 자동차의 위치를 감지하여 마이크로 컴퓨터로 신호 전달하는 레이져 센서 인터페이스부(30)와; 상기 속도 센서 인터페이스부(20)와 레이져 센서 인터페이스부(30)에서 입력된 속도와 거리값을 계산하는 마이크로 컴퓨터(40) 및; 상기 마이크로 컴퓨터(40)에서 계산된 값에 따라 충돌 위험 발생시 비상등을 구동하는 비상등 드라이브(50)로 구성함을 특징으로 하는 자동차 후면 충돌 경보 장치.A voltage adjuster 10 which adjusts the battery to a proper operating state voltage when the battery is supplied with a predetermined voltage; A speed sensor interface unit 20 for detecting a speed by a speed sensor after the voltage adjustment by the voltage adjusting unit 10 and transmitting a signal to a microcomputer; A laser sensor interface unit 30 for detecting a position of a rear vehicle from a laser sensor and transmitting a signal to a microcomputer; A microcomputer 40 for calculating speed and distance values input from the speed sensor interface 20 and the laser sensor interface 30; According to the value calculated by the microcomputer (40), the collision warning device for a vehicle, characterized in that it comprises an emergency light drive (50) for driving an emergency light when a collision risk occurs. 제 1 항에 있어서,The method of claim 1, 전압 조정부(10)는, 역전압 방지용 제너 다이오드(ZD1)와, 정류 다이오드(D1)와, 교류 차단용 콘덴서(C1)와, 상기 회로소자(ZD1,D1,C1)를 통과한 전압값을 마이크로 컴퓨터의 동작에 적합한 레벨로 전압을 조정하는 전압 조정기(11)를 포함하여 구성함을 특징으로 하는 자동차 후면 충돌 경보 장치.The voltage adjusting unit 10 includes a voltage value passed through the zener diode ZD1 for preventing the reverse voltage, the rectifier diode D1, the AC blocking capacitor C1, and the circuit elements ZD1, D1, C1. And a voltage regulator (11) for adjusting the voltage to a level suitable for the operation of the computer. 제 1 항에 있어서,The method of claim 1, 속도 센서 인터페이스부(20)는, 정류용 다이오드(D1)와, 바이어스 저항(R1,R3,R5)과, 회로 안정용 저항(R2)과, 전압 분할용 저항(R4)과, 상기 회로소자(D2,R1,R3,R2,R4)를 통과한 후방차와 자신의 자동차 속도 신호를 증폭하는 연산 증폭기(OP-Amp1)를 포함하여 구성함을 특징으로 하는 자동차 후면 충돌 경보 장치.The speed sensor interface unit 20 includes a rectifier diode D1, bias resistors R1, R3, R5, a circuit stabilizing resistor R2, a voltage dividing resistor R4, and the circuit element D2. And an op amp (OP-Amp1) for amplifying the vehicle speed signal and the rear vehicle passing through the R1, R3, R2, and R4. 제 1 항에 있어서,The method of claim 1, 레이져 센서 인터페이스부(30)는, 하이패스 콘덴서(C2,C3)와, 회로 안정용 저항(R6,R9), 콘덴서(C4)와, 역전압 방지용 제너 다이오드(ZD2)와, 바이어스 저항(R7,R8,R10,R11,R14)과, 전압 분할용 저항(R12)과, 상기 회로소자(C2,C3,R6,R9,C4,ZD2,R7,R8,R10,R11,R14)를 통과한 후방차와 자신의 차 사이의 거리 신호를 증폭하는 연산 증폭기(OP-Amp2)를 포함하여 구성함을 특징으로 하는 자동차 후면 충돌 경보 장치.The laser sensor interface unit 30 includes the high pass capacitors C2 and C3, the circuit stabilizing resistors R6 and R9, the capacitor C4, the zener diode ZD2 for preventing the reverse voltage, and the bias resistors R7 and R8. R10, R11, and R14, the voltage division resistor R12, and the rear difference passing through the circuit elements C2, C3, R6, R9, C4, ZD2, R7, R8, R10, R11, and R14. And an operational amplifier (OP-Amp2) for amplifying the distance signal between the cars. 제 1 항에 있어서,The method of claim 1, 비상등 드라이브(50)는, 전압 분할용 저항(R15)과, 바이어스 저항(R16,R17)과, 상기 회로소자(R15,R16,R17)을 통과한 후방차와 자신의 자동차의 거리와 속도 신호의 전압을 제어하는 전장효과 트랜지스터(FET)를 포함하여 구성함을 특징으로 하는 자동차 후면 충돌 경보 장치.The emergency light drive 50 includes a distance signal and a speed signal of the rear vehicle and its own vehicle which have passed through the voltage division resistor R15, the bias resistors R16 and R17, the circuit elements R15, R16 and R17. A rear collision warning device for a vehicle, comprising a field effect transistor (FET) for controlling voltage. 자동차 후면 충돌 경보 방법에 있어서,In the vehicle rear collision alarm method, 배터리의 일정 전압을 동작 상태에서 적절한 전압으로 다운시켜 조정하는 제 1 단계(S1)와; 상기 제 1 단계(S1)에서 조정된 전압이 인가되면, 후방차와 자신의 자동차 속도를 감지하여 상대 분석하는 제 2 단계(S2)와; 후방차와 자신의 자동차와의 차량간 거리를 감지하여 분석하는 제 3 단계(S3)와; 상기 제 2 단계(S2)와 제 3 단계(S3)에서 분석된 속도와 거리를 입력하여 자신의 자동차와 후방차의 거리, 속도를 계산하는 제 4 단계(S4)와; 상기 제 4 단계(S4)에서 계산된 값으로 거리와 속도가 적당한지 충돌 위험이 있는지 판단하여 적당하면 끝내는 제 5 단계(S5) 및; 상기 제 5 단계(S5) 판단 후 충돌 위험이 있으면 비상등을 점등하는 제 6 단계(S6)를 동작함을 특징으로 하는 자동차 후면 충돌 경보 방법.A first step (S1) of adjusting and lowering a predetermined voltage of the battery to an appropriate voltage in an operating state; A second step (S2) of detecting a relative difference between the rear vehicle and the vehicle speed when the adjusted voltage is applied in the first step (S1); A third step (S3) of detecting and analyzing a distance between the vehicle between the rear car and the vehicle; A fourth step (S4) of calculating the distance and the speed of the own car and the rear car by inputting the speed and the distance analyzed in the second step (S2) and the third step (S3); A fifth step S5 of determining whether the distance and the speed are appropriate or whether there is a risk of collision by using the value calculated in the fourth step S4; And a sixth step (S6) of lighting an emergency light if there is a risk of collision after determining the fifth step (S5).
KR1019950066504A 1995-12-29 1995-12-29 Collision warning device of a car and method thereof KR0140432B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011031049A2 (en) * 2009-09-11 2011-03-17 Lee Myung Su Emergency display device for a vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011031049A2 (en) * 2009-09-11 2011-03-17 Lee Myung Su Emergency display device for a vehicle
WO2011031049A3 (en) * 2009-09-11 2011-07-21 Lee Myung Su Emergency display device for a vehicle
KR101132314B1 (en) * 2009-09-11 2012-04-05 이명수 Emergency indication device for a vehicle

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