KR102653342B1 - 자율 주행 장치 및 방법 - Google Patents
자율 주행 장치 및 방법 Download PDFInfo
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- KR102653342B1 KR102653342B1 KR1020190058608A KR20190058608A KR102653342B1 KR 102653342 B1 KR102653342 B1 KR 102653342B1 KR 1020190058608 A KR1020190058608 A KR 1020190058608A KR 20190058608 A KR20190058608 A KR 20190058608A KR 102653342 B1 KR102653342 B1 KR 102653342B1
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Abstract
Description
도 2는 본 발명의 일 실시예에 따른 자율 주행 장치에서 자율 주행 통합 제어부의 구체적 구성을 보인 블록구성도이다.
도 3은 본 발명의 일 실시예에 따른 자율 주행 장치가 차량에 적용되는 예시를 보인 예시도이다.
도 4는 본 발명의 일 실시예에 따른 자율 주행 장치가 적용되는 차량의 내부 구조의 예시를 보인 예시도이다.
도 5는 본 발명의 일 실시예에 따른 자율 주행 장치에서 라이다 센서, 레이더 센서 및 카메라 센서가 주변 객체를 검출할 수 있는 설정 거리 및 수평 화각의 예시를 보인 예시도이다.
도 6은 본 발명의 일 실시예에 따른 자율 주행 장치에서 센서부가 주변 차량을 검출하는 예시를 보인 예시도이다.
도 7은 본 발명의 일 실시예에 따른 자율 주행 방법을 설명하기 위한 흐름도이다.
110: 주행 모드 스위치 120: 사용자 단말
200: 주행 정보 검출부 201: 주행 정보 입력 인터페이스
210: 조향각 센서 220: APS/PTS
230: 차속 센서 240: 가속도 센서
250: 요/피치/롤 센서 260: GPS 수신기
300: 출력부 301: 탑승자 출력 인터페이스
310: 스피커 320: 디스플레이 장치
400: 하위 제어 시스템 401: 차량 제어 출력 인터페이스
410: 엔진 제어 시스템 420: 제동 제어 시스템
430: 조향 제어 시스템 500: 센서부
510: 라이다 센서 511: 전방 라이다 센서
512: 상부 라이다 센서 513: 후방 라이다 센서
520: 레이더 센서 521: 전방 레이더 센서
522: 좌측 레이더 센서 523: 우측 레이더 센서
524: 후방 레이더 센서 530: 카메라 센서
531: 전방 카메라 센서 532: 좌측 카메라 센서
533: 우측 카메라 센서 534: 후방 카메라 센서
535: 내부 카메라 센서 540: 초음파 센서
600: 자율 주행 통합 제어부 610: 프로세서
611: 센서 처리 모듈 611a: 라이더 신호 처리 모듈
611b: 레이더 신호 처리 모듈 611c: 카메라 신호 처리 모듈
612: 주행 궤적 생성 모듈 612a: 주변 차량 주행 궤적 생성 모듈
612b: 자차량 주행 궤적 생성 모듈 613: 주행 궤적 분석 모듈
614: 주행 제어 모듈 615: 궤적 학습 모듈
616: 탑승자 상태 판단 모듈 620: 메모리
700: 서버
Claims (11)
- 자율 주행 중인 자차량 주변의 대상 객체를 검출하는 센서부;
지도 정보를 저장하는 메모리; 및
상기 메모리에 저장된 지도 정보와, 상기 센서부가 상기 대상 객체를 검출한 위치 측정치로부터 추정되는 상기 대상 객체의 상태 궤적을 나타내는 트랙(track)에 기초하여 상기 자차량의 자율 주행을 제어하는 프로세서;를 포함하고,
상기 프로세서는,
상기 센서부로부터 출력된 하나 이상의 측정치 중, 상기 대상 객체의 위치 측정치로부터 생성되는 위치 추정치를 중심으로 하는 유효 게이트(Validation Gate) 내에 존재하는 하나 이상의 유효 측정치를 추출하고,
상기 추출된 각 유효 측정치가 현재 시점에서의 상기 대상 객체의 위치 측정치에 해당할 확률을 고려하여 상기 대상 객체의 트랙을 형성함으로써 상기 대상 객체를 추적하되,
상기 대상 객체에 대한 추적이 유지되는 시간 및 상기 자차량의 주변 환경 정보에 따라 상기 유효 게이트의 크기를 조정하여 상기 유효 측정치를 추출하고,
상기 프로세서는,
상기 대상 객체에 대한 추적이 유지되는 시간이 증가할수록 상기 유효 게이트의 크기를 감소시키고,
상기 주변 환경 정보에 따른 추적 주의도를 이용하여 상기 유효 게이트의 크기를 증가 또는 감소시키되, 상기 추적 주의도는 상기 자차량의 주변 환경에 따라 상기 대상 객체에 대한 추적 비용이성을 지표하는 파라미터이고,
상기 추적 주의도가 낮을수록 상기 유효 게이트의 크기를 감소시키는 것을 특징으로 하는 자율 주행 장치.
- 제1항에 있어서,
상기 프로세서는,
상기 측정치와 상기 대상 객체의 위치 추정치 간의 잔차(innovation) 및 상기 잔차의 공분산(innovation covariance)에 기초하여 결정되는 마할라노비스 거리가 상기 유효 게이트의 크기를 결정하는 임계치 미만인지 여부를 판단하여 상기 유효 측정치를 추출하는 것을 특징으로 하는 자율 주행 장치.
- 제2항에 있어서,
상기 프로세서는,
상기 대상 객체에 대한 추적이 유지되는 시간이 증가할수록 상기 임계치를 감소시키는 방식으로 상기 유효 게이트의 크기를 감소시키는 것을 특징으로 하는 자율 주행 장치.
- 제2항에 있어서,
상기 프로세서는,
상기 주변 환경 정보에 따른 추적 주의도가 반영된 환경 가중치를 이용하여 상기 임계치를 조정함으로써 상기 유효 게이트의 크기를 증가 또는 감소시키되, 상기 주변 환경 정보는 전방 도로의 형태, 속성, 교통 상황 및 노면 상황 중 하나 이상을 포함하는 것을 특징으로 하는 자율 주행 장치.
- 제1항에 있어서,
상기 프로세서는,
상기 대상 객체의 위치 추정치를 시간에 따라 갱신하는 방식을 통해 상기 트랙을 갱신하고, 상기 트랙이 갱신되는 히스토리를 상기 메모리에 저장하여 트랙의 초기화를 통한 트랙 관리를 수행하는 것을 특징으로 하는 자율 주행 장치.
- 제1항에 있어서,
상기 센서부는 라이다 센서, 레이더 센서 및 카메라 센서 중 하나 이상을 포함하는 것을 특징으로 하는 자율 주행 장치.
- 프로세서가, 메모리에 저장된 지도 정보와, 센서부가 자율 주행 중인 자차량 주변의 대상 객체를 검출한 위치 측정치로부터 추정되는 상기 대상 객체의 상태 궤적을 나타내는 트랙(track)에 기초하여 상기 자차량의 자율 주행을 제어하는 방법으로서,
상기 프로세서가, 상기 센서부로부터 출력된 하나 이상의 측정치 중, 상기 대상 객체의 위치 측정치로부터 생성되는 위치 추정치를 중심으로 하는 유효 게이트(Validation Gate) 내에 존재하는 하나 이상의 유효 측정치를 추출하는 단계; 및
상기 프로세서가, 상기 추출된 각 유효 측정치가 현재 시점에서의 상기 대상 객체의 위치 측정치에 해당할 확률을 고려하여 상기 대상 객체의 트랙을 형성함으로써 상기 대상 객체를 추적하는 단계;
를 포함하고,
상기 추출하는 단계에서, 상기 프로세서는,
상기 대상 객체에 대한 추적이 유지되는 시간 및 상기 자차량의 주변 환경 정보에 따라 상기 유효 게이트의 크기를 조정하여 상기 유효 측정치를 추출하되,
상기 대상 객체에 대한 추적이 유지되는 시간이 증가할수록 상기 유효 게이트의 크기를 감소시키고,
상기 주변 환경 정보에 따른 추적 주의도를 이용하여 상기 유효 게이트의 크기를 증가 또는 감소시키되, 상기 추적 주의도는 상기 자차량의 주변 환경에 따라 상기 대상 객체에 대한 추적 비용이성을 지표하는 파라미터이고,
상기 추적 주의도가 낮을수록 상기 유효 게이트의 크기를 감소시키는 것을 특징으로 하는 자율 주행 방법.
- 제7항에 있어서,
상기 추출하는 단계에서, 상기 프로세서는,
상기 측정치와 상기 대상 객체의 위치 추정치 간의 잔차(innovation) 및 상기 잔차의 공분산(innovation covariance)에 기초하여 결정되는 마할라노비스 거리가 상기 유효 게이트의 크기를 결정하는 임계치 미만인지 여부를 판단하여 상기 유효 측정치를 추출하는 것을 특징으로 하는 자율 주행 방법.
- 제8항에 있어서,
상기 추출하는 단계에서, 상기 프로세서는,
상기 대상 객체에 대한 추적이 유지되는 시간이 증가할수록 상기 임계치를 감소시키는 방식으로 상기 유효 게이트의 크기를 감소시키는 것을 특징으로 하는 자율 주행 방법.
- 제8항에 있어서,
상기 추출하는 단계에서, 상기 프로세서는,
상기 주변 환경 정보에 따른 추적 주의도가 반영된 환경 가중치를 이용하여 상기 임계치를 조정함으로써 상기 유효 게이트의 크기를 증가 또는 감소시키되, 상기 주변 환경 정보는 전방 도로의 형태, 속성, 교통 상황 및 노면 상황 중 하나 이상을 포함하는 것을 특징으로 하는 자율 주행 방법.
- 제7항에 있어서,
상기 프로세서가, 상기 대상 객체의 위치 추정치를 시간에 따라 갱신하는 방식을 통해 상기 트랙을 갱신하고, 상기 트랙이 갱신되는 히스토리를 상기 메모리에 저장하여 트랙의 초기화를 통한 트랙 관리를 수행하는 단계;를 더 포함하는 것을 특징으로 하는 자율 주행 방법.
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KR1020190058608A KR102653342B1 (ko) | 2019-05-20 | 2019-05-20 | 자율 주행 장치 및 방법 |
CN202010411758.XA CN111959482B (zh) | 2019-05-20 | 2020-05-15 | 自主驾驶装置及方法 |
DE102020113418.5A DE102020113418B4 (de) | 2019-05-20 | 2020-05-18 | Vorrichtung und verfahren zum autonomen fahren |
US16/877,411 US20200369296A1 (en) | 2019-05-20 | 2020-05-18 | Autonomous driving apparatus and method |
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US11893004B2 (en) * | 2020-08-26 | 2024-02-06 | Ford Global Technologies, Llc | Anomaly detection in multidimensional sensor data |
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CN114170270B (zh) * | 2021-11-22 | 2025-01-28 | 重庆长安汽车股份有限公司 | 单传感器多目标关联匹配方法、系统及车辆 |
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US20240140414A1 (en) * | 2022-11-02 | 2024-05-02 | Canoo Technologies Inc. | System and method for target behavior prediction in advanced driving assist system (adas), autonomous driving (ad), or other applications |
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US20200369296A1 (en) | 2020-11-26 |
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