单船海上视觉搜寻水上人员的搜寻方式效率比较

Efficiency Comparison on Different Maritime Visual Searching Patterns of Single Ship Searching Personnel at Sea

分析了单船海上扩展方形和扇形视觉搜寻水上人员两种方式，通过建立衡量单船海上视觉搜寻水上人员两种高效搜寻方式的数学模型并结合《国际航空和海上搜寻救助手册》对其进行定量分析，得出在搜寻半径为2～5 n mile的较小搜寻区域内，扩展方形视觉搜寻方式的效率高于扇形视觉搜寻方式的结论，为海上视觉搜寻决策者进行科学决策提供依据。

Analyzed two visual searching patterns of single ship searching personnel at sea which are ex-tended square visual search and sectorial visual search. Through the establishment of mathematical models which measure two visual searching patterns′ efficiency,and the combination of ＆quot;International Aeronautical and maritime search and Rescue Manual＆quot;, carried on the quantitative analysis to two searching patterns and ob-tained the result that in the small searching area of 2-5 miles radius, extended square visual searching pattern is more efficient than sectorial visual searching pattern. So as to provide a basis for visual searching decision makers to make scientific decision.