Optics and Precision Engineering, Volume. 29, Issue 9, 2126(2021)

Dynamic obstacle avoidance of unmanned surface vehicle based on improved speed obstacle method

Xiao-bin HONG1,*... Zheng-pan XU1, Xin-yong WEI1, Kun-cai ZHU1 and Yuan-ming CHEN2 |Show fewer author(s)
Author Affiliations
  • 1College of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou50640, China
  • 2College of Civil Engineering and Transportation, South China University of Technology, Guangzhou510641, China
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    Figures & Tables(21)
    Comparison of two obstacle model description methods
    Relative motion diagram
    Schematic diagram of velocity obstacle method
    Velocity obstacle area introducing obstacle velocity uncertainty
    Division of velocity obstacle area
    Flowchart of dynamic collision avoidance algorithm
    Simulation of trajectories of collision avoidance ships
    Simulated relative distance map of collision avoidance ships
    Simulated trajectories of single ship encountering collision avoidance
    Simulated parameters of single ship encountering collision avoidance
    Satellite image of experimental site
    Trajectories of single ship encountering collision avoidance
    Heading angle change of unmanned surface vehicle
    Variation of relative distance between two ships
    • Table 1. Initial parameters of single ship encounter collision avoidance experiment

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      Table 1. Initial parameters of single ship encounter collision avoidance experiment

      类 别航速/(m·s-1艏向角初始坐标外接圆直径/m
      水面无人艇10180(110,0)14.6
      对遇船50(-130,0)14.6
      追越船4180(40,0)14.6
      左交叉船1090(0,-110)14.6
      右交叉船10315(-64.7,64.7)14.6
    • Table 2. Experimental result of single ship encountering collision avoidance

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      Table 2. Experimental result of single ship encountering collision avoidance

      会遇

      类型

      避障起始时间/s避障结束时间/s航迹重规划点两船最小距离/m
      对遇1120(-45.1, 30.9)29.8
      追越015(-9.7,-32.2)29.2
      左交叉5.713(24.1, -29.6)30.6
      右交叉613(18.9, 21.5)29.4
    • Table 3. Initial parameters of right cross collision avoidance experiment

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      Table 3. Initial parameters of right cross collision avoidance experiment

      类别航速(节)艏向角/(°)初始经纬度/(°)目标点经纬度/(°)
      无人艇12-31.322.66617,113.675 2922.667 71,113.674 28
      障碍艇12-117.922.66754,113.675 74-
    • Table 4. Initial parameters of left cross collision avoidance experiment

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      Table 4. Initial parameters of left cross collision avoidance experiment

      类别航速(节)艏向角/(°)初始经纬度/(°)目标点经纬度/(°)
      无人艇12-31.222.667 35,113.674 6422.668 90,113.673 63
      障碍艇1260.422.667 78,113.673 23-
    • Table 5. Initial parameters of meeting cross collision avoidance experiment

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      Table 5. Initial parameters of meeting cross collision avoidance experiment

      类别航速(节)艏向角/(°)初始经纬度/(°)目标点经纬度/(°)
      无人艇12-29.622.668 53,113.674 0722.670 10,113.673 11
      障碍艇12154.122.669 98,113.673 32-
    • Table 6. Initial parameters of beyond cross collision avoidance experiment

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      Table 6. Initial parameters of beyond cross collision avoidance experiment

      类别航速(节)艏向角/(°)初始经纬度/(°)目标点经纬度/(°)
      无人艇12-28.122.670 32,113.673 0622.672 32,113.671 92
      障碍艇6-29.222.670 93,113.672 75-
    • Table 7. Experimental result of single ship encounters collision

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      Table 7. Experimental result of single ship encounters collision

      会遇类型避碰起始时间/s返航时间/s返航点经纬度/(°)两船最小距离/m
      右交叉81722.671 26113.672 2024.1
      左交叉91822.667 94, 113.673 9330.2
      对遇71622.669 34, 113.673 8417.3
      追越82222.671 26, 113.672 2019.6
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    Xiao-bin HONG, Zheng-pan XU, Xin-yong WEI, Kun-cai ZHU, Yuan-ming CHEN. Dynamic obstacle avoidance of unmanned surface vehicle based on improved speed obstacle method[J]. Optics and Precision Engineering, 2021, 29(9): 2126

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    Paper Information

    Category: Micro/Nano Technology and Fine Mechanics

    Received: May. 7, 2021

    Accepted: --

    Published Online: Nov. 22, 2021

    The Author Email: HONG Xiao-bin (mexbhong@scut.edu.cn)

    DOI:10.37188/OPE.2021.0272

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