KR950011230A

KR950011230A - Vehicle collision prevention device using ultrasonic sensor and method

Info

Publication number: KR950011230A
Application number: KR1019930020850A
Authority: KR
Inventors: 정진호; 조정식; 송제석; 조덕상
Original assignee: 김주용; 현대전자산업 주식회사
Priority date: 1993-10-08
Filing date: 1993-10-08
Publication date: 1995-05-15

Abstract

본 발명은 차량 충돌 방지 장치에 있어서, 자동차의 좌/우 측면에 초음파 발신 및 수신 센서를 부착하여 자동차의 사이드 백 미러가 가지는 시야의 사각 지대를 감시할 수 있도록 한 초옴파 감지 장치를 이용한 차량 충돌 방지 장치 및 그 방법에 관한 것으로, 종래의 자동차에는 차량 측방의 상황을 판단하기 위해 차량의 좌/우측 측방에 사이드 백 미러를 설치하는 방법을 사용하고 있으며, 통상적인 경우 차량의 사이드 백 미러는 운전석에서 볼 경우 사이드 백 미러로 확인이 되지 않는 사각 지대를 가지고 있으므로. 이러한 사각 지대를 보기 위해서는 운전자가 고개를 돌려 확인 하여야 함으로써, 차선 변경시 주의률 기울이지 않으면 전방의 위험 상황을 감지 하지 못하여 사고가 발생할 수 있고, 또한 악천후시에는 사이드 백 미러가 잘 보이지 않는 겅우가 발생하게 되는 문제점이 있었다.The present invention provides a vehicle collision avoidance apparatus, wherein an ultrasonic transmitting and receiving sensor is attached to left and right sides of a vehicle to monitor a blind spot of a field of view of a vehicle side back mirror. The present invention relates to a prevention device and a method thereof, in which a conventional vehicle uses a method of installing side back mirrors on the left and right sides of the vehicle in order to determine a situation on the side of the vehicle. Because it has a blind spot that cannot be seen with the side back mirror when viewed from the In order to see such blind spots, the driver must turn his head to check, and if the attention is not tilted when changing lanes, an accident may occur because the danger in front of the vehicle may not be detected, and in case of bad weather, the side back mirror may be difficult to see. There was a problem.

본 발명은 이와같은 종래의 문제점을 감안하여, 사이드 백 미러와는 별도로 차량의 양측 후방에 초음파 발신 센서와 수신 센서를 설치하고, 이를 이용하여 사이드 백 미러의 사각 지대에 물체가 있는지 여부를 감시 함으로써, 차선 변경시 사이드 백 미러로 확인이 되지 않는 사각 지대를 운전자가 알 수 있도록 하여 안전 운행 및 안전 주차할 수 있도록 한 것이다.In view of such a conventional problem, the present invention provides an ultrasonic transmitting sensor and a receiving sensor at both rear sides of the vehicle separately from the side back mirror, and monitors whether there is an object in a blind spot of the side back mirror by using the same. In this case, the driver can know the blind spot which cannot be confirmed by the side back mirror when changing lanes so that the driver can drive safely and park safely.

Description

Vehicle collision prevention device using ultrasonic sensor and method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 자동차의 사이드 백 미러 사각 지대 예시도,1 is an exemplary view of a side rearview mirror blind spot of a vehicle,

제2도는 본 발명 초음파 거리 측정 장치를 이용한 차량 충돌 방지 장치의 전체 구성도,2 is an overall configuration diagram of a vehicle collision preventing device using the ultrasonic distance measuring device of the present invention,

제3도는 제2도의 초음파 발신 회로에 대한 상세 구성도,3 is a detailed configuration diagram of the ultrasonic transmitting circuit of FIG.

제4도는 제2도의 초음파 수신회로에 대한 상세 구성도,4 is a detailed configuration diagram of the ultrasonic receiving circuit of FIG.

제5도의 (가) 내지 (다)는 제3도에 대한 동작 타이밍도,(A) to (c) of FIG. 5 is an operation timing diagram for FIG.

제6도는 본 발명 초음파 거리 측정 장치를 이용한 차량 충돌 방지 방법의 동작 순서도이다.6 is an operation flowchart of the vehicle collision prevention method using the ultrasonic distance measuring device of the present invention.

Claims

An ultrasonic transmitting circuit 10 for driving an ultrasonic to an object through the left and right ultrasonic transmitting sensors 1A and 1B; Ultrasonic wave receiving circuit 20 for outputting the ultrasonic wave receiving signal to the object through the left / right ultrasonic receiving sensor (2A, 2B); A central processing unit 30 which receives the output signal of the ultrasonic receiving circuit 20 and controls the entire operation; When it is going to rotate to the right, the left and right rotation signal 40 which inputs this signal to the central processing unit 30, and the visual and audio alarm which outputs a market price and an audio alarm by the control signal of the said central processing unit 30. Vehicle collision prevention device using an ultrasonic sensing device, characterized in that consisting of a device (50).

The method of claim 1. The ultrasonic transmitting circuit 10 includes an ultrasonic transmitting clock unit 11 for generating a clock for driving ultrasonic waves; Ultrasonic control signal unit 12 for outputting a control signal for controlling the ultrasonic wave in the transmission or standby state, and the clock generated by the ultrasonic transmission clock unit 11 is transmitted by the control signal of the ultrasonic control signal unit 12 Or the vehicle collision avoidance apparatus using an ultrasonic sensing device, characterized in that configured to stand by the ultrasonic transmission sensor unit 13 to stand by.

The method of claim 1. The ultrasonic receiving circuit 20 includes an ultrasonic receiving sensor unit 21 for receiving ultrasonic waves transmitted from the ultrasonic transmitting circuit 10; A first amplifier 22 which amplifies the received signal input from the ultrasonic receiving sensor 21; A band pass filter part 23 for removing noise of the signal amplified by the first amplifier part 22; A second amplifier section 24 for amplifying the signal filtered by the band pass filter section 23, a detection circuit section 25 for detecting a signal amplified by the second amplifier section 24 to make a digital signal; A comparison arcing unit 26 for comparing and outputting the signal detected by the detection circuit unit 25 with the ultrasonic control signal generated by the ultrasonic transmitting circuit 10; A reference time operation circuit unit 27 for determining an operation time to operate only for a predetermined time by the ultrasonic control signal generated by the ultrasonic transmitting circuit 10; A time comparison unit 28 for comparing and outputting the signal output from the comparison circuit unit 26 with the time defined by the reference time operation circuit unit 27; Vehicle collision prevention device using an ultrasonic sensing device, characterized in that it comprises a signal adjusting unit for adjusting the voltage and the signal so as to process the signal output compared in the time comparison unit 28.

Checking whether a reverse signal is input (S1); Operating the left / right sensor in the case of the reverse signal, and checking the application of the left rotation signal in the case of the non-reverse signal (S2); Operating the left sensor in the case of the left turn signal, and checking the application of the right turn signal in the case of the left turn signal (S3); Returning to the first step S1 when the signal is not the right rotation, and operating the right sensor when the signal is the right rotation (S4); Checking the application of the ultrasonic reception signal after the right sensor operation, and if not the ultrasonic reception signal, returns to the first step S1, and if the ultrasonic reception signal is an object within a detection distance, performing a visual and audio alarm (S5); In the step S2, when the left rotation signal is operated, the left sensor is operated, and when the ultrasound reception signal is applied, the operation returns to the first step S1 when the ultrasound reception signal is not, and in the case of the ultrasound reception signal, there is an object within the detection distance. And a step of performing a visual and auditory alarm (S6), and checking the application of the ultrasonic reception signal after operating the left / right sensor in the case of the backward signal in the step (S1); If it is not the ultrasonic reception signal, returning to the first step (S1), and in the case of the ultrasonic reception signal, checking whether the signal is left to check in which direction (S8); In the case of the left side, the light of the left direction is turned on and the alarm is sounded. On the other hand, if it is not the left side, it is the right side. Vehicle collision prevention method using.

※ Note: The disclosure is based on the initial application.