• 제목/요약/키워드: avoidance of collision

검색결과 831건 처리시간 0.034초

Vehicles Auto Collision Detection & Avoidance Protocol

  • Almutairi, Mubarak;Muneer, Kashif;Ur Rehman, Aqeel
    • International Journal of Computer Science & Network Security
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    • 제22권3호
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    • pp.107-112
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    • 2022
  • The automotive industry is motivated to provide more and more amenities to its customers. The industry is taking advantage of artificial intelligence by increasing different sensors and gadgets in vehicles machoism is forward collision warning, at the same time road accidents are also increasing which is another concern to address. So there is an urgent need to provide an A.I based system to avoid such incidents which can be address by using artificial intelligence and global positioning system. Automotive/smart vehicles protection has become a major study of research for customers, government and also automotive industry engineers In this study a two layered novel hypothetical approach is proposed which include in-time vehicle/obstacle detection with auto warning mechanism for collision detection & avoidance and later in a case of an accident manifestation GPS & video camera based alerts system and interrupt generation to nearby ambulance or rescue-services units for in-time driver rescue.

장애물이 있는 환경하에서 여유자유도 로보트의 지능제어 방법 (Intelligent control of redundant manipulator in an environment with obstacles)

  • 현웅근;서일홍
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 1991년도 한국자동제어학술회의논문집(국내학술편); KOEX, Seoul; 22-24 Oct. 1991
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    • pp.168-173
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    • 1991
  • A neural optimization network is proposed to control the redundant robot manipulators in an environment with the obstacle. The weightings of the network are adjusted by considering both the joint dexterity and the capability of collision avoidance of joint differential motion. The fuzzy rules are proposed to determine the capability of collision avoidance of each joint. To show the validities of the proposed method, computer simulation results are illustrated for the redundant robot of the planner type with three degrees of freedom.

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AIS 정보를 이용한 선박 충돌 회피 시뮬레이터 설계 (Design of Ship Collision Avoidance Simulator Using AIS Information)

  • 류성령;하정은;강지훈;유동희
    • 한국정보통신학회:학술대회논문집
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    • 한국정보통신학회 2014년도 춘계학술대회
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    • pp.127-129
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    • 2014
  • AIS를 이용한 선박간의 자동위치인식이 적용되고 있으나 여전히 많은 선박사고로 인해 인명 및 재산 손실 뿐만 아니라 환경오염까지 초래하는 문제가 발생하고 있다. 이에 본 논문에서는 선박사고 중 높은 사고율을 차지하는 선박간의 충돌사고를 줄이고자 AIS에서 제공하는 static 정보, dynamic 정보를 이용하여 선박 충돌 회피 알고리즘과 시뮬레이션 시스템 설계를 제시한다.

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퍼지 집합이론을 이용한 실린더형 로보트의 3차원 공간상에서의 충돌 회피 운동 계획 시스템 (A fuzzy control application to the collision avoidance problem of a robot)

  • 구관모;이범희;고명삼
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 1989년도 한국자동제어학술회의논문집; Seoul, Korea; 27-28 Oct. 1989
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    • pp.149-153
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    • 1989
  • This paper investigates the possibility of applying fuzzy algorithms to the collision avoidance problem of a cylindrical robot moving in a 3-dimensional workspace. The displacement information from the end-effector to the points via which the robot can avoid collisions is given by the human operator. Then this uncertain information is adopted for the fuzzy inference system for robot movements. The robot movement is simulated to verify the effectiveness of the proposed fuzzy algorithm.

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격자형 환경 모델을 이용한 장애물의 의도 추론 (Obstacle's Intention Inference using the Grid-type Map)

  • 김성훈;이희영;변증남
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 1999년도 하계종합학술대회 논문집
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    • pp.796-799
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    • 1999
  • In this paper, we propose an inference method for understanding intention of obstacle for collision avoidance using the grid-type map. In order to represent the environment using ultrasonic sensors, the grid-type map is first constructed. Then we detect the obstacle and infer the intention for collision avoidance using the CLA(Centroid of Largest Area) point of the grid-type map. To verify the proposed method, some experiments are performed.

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무게중심 보로노이 테셀레이션을 이용한 군집로봇의 협조탐색 (The Cooperate Navigation for Swarm Robot Using Centroidal Voronoi Tessellation)

  • 방문섭;주영훈
    • 전기학회논문지
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    • 제61권1호
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    • pp.130-134
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    • 2012
  • In this paper, we propose a space partitioning technique for swarm robots by using the Centroidal Voronoi Tessellation. The proposed method consists of two parts such as space partition and collision avoidance. The space partition for searching a given space is carried out by a density function which is generated by some accidents. The collision avoidance is implemented by the potential field method. Finally, the numerical experiments show the effectiveness and feasibility of the proposed method.

A COLLISION AVOIDANCE CONTROL PROBLEM FOR MOVING OBJECTS AND A ROBOT ARM

  • Junhong Ha;Jito Vanualailai
    • 대한수학회지
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    • 제35권1호
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    • pp.135-148
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    • 1998
  • We propose the new controls constructed via the second or direct method of Liapunov to solve the collision avoidance control problems for moving objects and a robot arm in the plane. We also explicate the controlling effect by the simulations.

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유전 알고리즘을 이용한 미지의 장애물이 존재하는 작업공간내 이동 로봇의 경로계획 (Path Planning for Mobile Robot in Unstructured Workspace Using Genetic Algorithms)

  • 조현철;이기성
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1998년도 하계학술대회 논문집 G
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    • pp.2318-2320
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    • 1998
  • A genetic algorithm for global and local path planning and collision avoidance of mobil robot in unstructured workspace is proposed. The genetic algorithm searches for a path in the entire and continuous free space and unifies global path planning and local path planning. The simulation shows the proposed method is an efficient and effective method when compared with the traditional collision avoidance algorithms.

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동적 변화의 작업환경 내에서 이동 로봇의 경로계획 (Path Planning for a Mobile Robot in Dynamic Working Environments)

  • 조현철;이기성
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1999년도 하계학술대회 논문집 G
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    • pp.3098-3100
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    • 1999
  • A genetic algorithm for global and local path planning and collision avoidance of mobile robot in dynamic working environment is proposed. The genetic algorithm searches for a path in the entire and continuous free space and unifies global path planning and local path planning. The simulation shows the proposed method is an efficient and effective method when compared with the traditional collision avoidance algorithms.

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2차원 평면에서 이동장애물에 대한 항공기의 유도/회피기동 연구 (Aircraft Collision-Avoidance/Guidance Strategy in Dynamic Environments for Planar Flight)

  • 이인석
    • 한국항공우주학회지
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    • 제32권7호
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    • pp.69-75
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    • 2004
  • 비행중인 다른 항공기를 회피하며 항공기를 목표점까지 유도하는 문제를 2차원 평면에서 고려하였다. 항공기는 속도의 크기가 일정한 질점이며, 제어입력으로 측가속도를 사용하는 것으로 가정하였다. 이동장애물에는 척력 포텐셜함수를 목적점에는 인력 포텐셜함수를 인공적으로 부여하여 항공기에 척력과 인력이 작용하도록 하였다. 유도/회피명령은 이들 포텐셜력과 상대속도를 사용하여 실시간으로 구현 가능한 유도/회피법칙을 구현하였다. Log 형태의 포텐셜함수를 사용하면 구현된 유도법칙은 잘 알려진 비례항법유도법칙이 되며, 회피법칙은 장애물까지 도달시간에 반비례하고 시선각 변화의 반대 방향으로 항공기를 회전시킨다. 제안된 유도/회피법칙은 시뮬레이션을 통하여 타당성을 검증하였다.