閉塞領域を考慮した船舶の自動航行に関する研究(第3報)

概要

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Navigational safety is highly demanded in order to prevent marine accidents. However the reduction of personnel expenses is enforced recently to reduce total transportation cost and it means that the securement of crew who have an excellent skill becomes difficult. So the increase of sea disaster accident originated with the degradation of skill of sailors is concerned in the future and the introduction of an automatic navigation device is the one of the solution of such a problem. In the previous paper, numerical simulations and model experiments for the scenario which assume a ship avoids a stopping ship was shown. The authors had evaluated the effect of parameters which prescribe evasion navigation by numerical simulation in advance of model experiment. On the model experiment, the evasion navigation was divided into three phases because of the restriction of the area of manoeuvring basin. In this paper, the improved algorithm to avoid colliding with a stopping ship is proposed. The effect of parameters on evasion navigation is examined by numerical simulation. Furthermore, the author developed an model experimental system using Real-time Kinematic GPS (RTK-GPS) to carry out model experiments. It is shown that simulated and measured results agree well and the designed automatic navigation system functions well to avoid collision with stopping object by these investigation.
社団法人日本船舶海洋工学会の論文
2005-03-20