KR960024459A - Optical distance measuring device and method using multiple integration - Google Patents

Optical distance measuring device and method using multiple integration Download PDF

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Publication number
KR960024459A
KR960024459A KR1019940033083A KR19940033083A KR960024459A KR 960024459 A KR960024459 A KR 960024459A KR 1019940033083 A KR1019940033083 A KR 1019940033083A KR 19940033083 A KR19940033083 A KR 19940033083A KR 960024459 A KR960024459 A KR 960024459A
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KR
South Korea
Prior art keywords
signal
laser
driving
value
integrator
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KR1019940033083A
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Korean (ko)
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KR0129838B1 (en
Inventor
조덕상
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김주용
현대전자산업 주식회사
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Priority to KR1019940033083A priority Critical patent/KR0129838B1/en
Publication of KR960024459A publication Critical patent/KR960024459A/en
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/16—Anti-collision systems
    • G08G1/166—Anti-collision systems for active traffic, e.g. moving vehicles, pedestrians, bikes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G01S17/08—Systems determining position data of a target for measuring distance only
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/4808—Evaluating distance, position or velocity data

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Electromagnetism (AREA)
  • Optical Radar Systems And Details Thereof (AREA)

Abstract

본 발명은 레이저를 이용한 광학식 거리측정장치에 있어서, 특히 반사된 신호를 처리하는 과정에서 시간전압 변환을 여러개의 적분기를 사용하여 거리값을 구함으로써 낮은 전압으로 거리측정의 정밀도를 향상시키도록 함을 특징으로 하는 다중적분을 이용한 광학식 거리측정장치 및 방법에 관한 것으로, 레이저를 이용한 광학식 거리측정장치를 구현함에 있어 1개의 적분기를 사용하여 수신신호를 처리할 경우 같은 시간에서 거리측정값의 정밀도를 높이기 위해 높은 전압이 필요한, 본 발명은 여러개의 적분기를 설치하여 다중적분을 시행함으로써 낮은전압에서 이동시간을 환산함은 물론 거리정밀도도 그만큼 향상되도록 한 것이다.The present invention provides an optical distance measuring apparatus using a laser, in particular, in the process of processing a reflected signal, by using a plurality of integrators for time voltage conversion to obtain a distance value to improve the accuracy of distance measurement at a low voltage. The present invention relates to an optical distance measuring device and a method using multiple integrators. In the implementation of the optical distance measuring device using a laser, when the received signal is processed using one integrator, the accuracy of the distance measurement value is increased at the same time. In the present invention, which requires a high voltage in order to install multiple integrators, multiple integrations are performed to convert the travel time at a low voltage as well as to improve the distance accuracy.

Description

다중적분을 이용한 광학식 거리측정장치 및 방법Optical distance measuring device and method using multiple integration

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

제1도는 본 발명의 전체 구성도, 제2도는 본 발명 수광신호 처리부 구성도, 제4도는 본 발명 제어부 동작순서도이다.1 is an overall configuration diagram of the present invention, FIG. 2 is a configuration diagram of the light receiving signal processor of the present invention, and FIG. 4 is an operation flowchart of the present invention.

Claims (3)

전체 시스템을 제어하는 제어부(10)와; 제어부(10)의 제어신호에 따라 레이저를 구동시키는 신호를 발생시키는 레이저 구동부(20)와; 레이저 구동부(20)로부터 신호를 인가받아 레이저를 대상물체에 입사하는 레이저 발광부(30)와; 대상물체에 반사된 신호를 수신하는 레이저 수신부(40)와; 수신된 신호를 다중적분을 이용하여 처리하는 수광신호 처리부(50)와; 현 입력신호와 전단계 입력신호를 비교하여 상황을 판단하는 제어부(10)의 제어신호에 따라 가속상황일때 구동하는 가속장치(60)와; 감속상황일때 구동하는 감속장치(70) 및 위험상황일때 구동하는 경보장치(80)로 구성함을 특징으로 하는 다중적분을 이용한 광학식 거리 측정장치.A control unit 10 for controlling the entire system; A laser driver 20 generating a signal for driving a laser according to a control signal of the controller 10; A laser light emitting unit 30 which receives a signal from the laser driver 20 and injects a laser into the object; A laser receiver 40 for receiving a signal reflected by the object; A light receiving signal processing unit 50 for processing the received signal using multiple integrals; An acceleration device 60 for driving when the acceleration situation is in accordance with a control signal of the control unit 10 comparing the current input signal with the previous input signal and determining a situation; Optical distance measuring device using multiple integrals, characterized in that consisting of a deceleration device 70 for driving in a deceleration situation and an alarming device (80) for driving in a dangerous situation. 제1항에 있어서, 상기 수광신호 처리부(50)는 레이저 발광신호에 의해 첫번째 적분동작을 실시하는 제1적분기(51-1)와; 상기 제1적분기(51-1)가 일정시간 적분을 완료하는 시점에서 동작하는 제1지연회로(52-1)와; 상기 제1지연회로(52-1)가 동작을 완료하는 시점에서 적분동작을 실시하는 제2적분기(51-2)와; 상기와 같은 순서로 작업 실시중 N-1번째 적분기가 적분을 완료한 시점에서 동작하는 제N-1지연회로(52-2)와; 상기 지연회로(52-2)가 동작을 완료하는 시점에서 N번째 적분동작을 실시하는 제N적분기(51-3)와; 상기 적분기(51-1,51-2,51-3)에 의한 적분값을 샘플하다가 레이저 수광신호에 의해 홀드하는 샘플앤 홀드부(54-1,54-2,54-3)와; 상기 지연회로(52-1,52-2)의 값들을 게속적으로 디코더하여 아날로그 먹스(55)의 값을 결정하는 디코더 회로(53)와; 앤드 게이트를 통한 디코더 회로(53)와 수광신호에 의한 신호에 의해 샘들앤 홀드값을 선택하는 아날로그 먹스(55)와; 디코더 신호가 제어부(10)에 들어오면 A/D변환신호를 출력받아 홀드되어 있는 값을 인식하고 A/D변환을 행하는 A/D변환부(56)로 구성함을 특징으로 하는 다중적분을 이용한 광학식 거리측정장치.The light receiving signal processing unit (50) according to claim 1, further comprising: a first integrator (51-1) for performing a first integration operation by means of a laser emission signal; A first delay circuit 52-1 operating when the first integrator 51-1 completes a predetermined time integration; A second integrator 51-2 which performs an integration operation when the first delay circuit 52-1 completes the operation; An N-1 delay circuit 52-2 which operates when the N-1 th integrator completes the integration during the operation as described above; An Nth integrator (51-3) for performing an Nth integration operation at the time when the delay circuit (52-2) completes the operation; Sample-and-hold units 54-1, 54-2, and 54-3 which sample integral values by the integrators 51-1, 51-2 and 51-3 and hold them by laser reception signals; A decoder circuit (53) for continuously decoding the values of the delay circuits (52-1, 52-2) to determine the value of the analog mux (55); An analog mux 55 for selecting the sampling and hold values by the decoder circuit 53 through the AND gate and the signal by the received signal; When the decoder signal enters the control unit 10, the A / D conversion unit 56 receives the A / D conversion signal, recognizes the held value, and performs A / D conversion. Optical distance measuring device. 시스템을 초기화한 후 레이저를 대상물체에 발사하여 물체가 있는가를 A/D변환 시작 후 수광신호를 통해 확인하는 제1단계(S1)와; 물체가 있는 경우 A/D변환값과 디코더값을 취득하여 거리계산을 행하는 제2단계(S2)와; 이 거리값에 의하여 가속상황이면 가속장치를 구동하는 제3단계(S3)와; 이 거리값에 의하여 감속상황이면 감속장치를 구동하는 제4단계(S4)와; 이 거리값에 의하여 위험상황이면 경보를 행하는 제5단계(S5)로 순차동작함을 특징으로 하는 다중적분을 이용한 광학식 거리측정방법.A first step (S1) of initializing the system and firing a laser on the target object to check whether the object is present through a light receiving signal after the start of the A / D conversion; A second step (S2) of performing distance calculation by acquiring the A / D conversion value and the decoder value when there is an object; A third step (S3) of driving the accelerator if the acceleration condition is caused by the distance value; A fourth step (S4) of driving the reduction apparatus when the deceleration condition is caused by the distance value; The optical distance measuring method using the multiple integrals characterized in that it operates sequentially in the fifth step (S5) to give an alarm if the dangerous situation by this distance value. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940033083A 1994-12-07 1994-12-07 Apparatus and method for optically measuring distance using multiple integration KR0129838B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940033083A KR0129838B1 (en) 1994-12-07 1994-12-07 Apparatus and method for optically measuring distance using multiple integration

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Application Number Priority Date Filing Date Title
KR1019940033083A KR0129838B1 (en) 1994-12-07 1994-12-07 Apparatus and method for optically measuring distance using multiple integration

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KR960024459A true KR960024459A (en) 1996-07-20
KR0129838B1 KR0129838B1 (en) 1998-10-01

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