A Study on the Measurement of Human Mental Work-load in Ship Handling Using SNS Value
A Study on the Measurement of Human Mental Work-load in Ship Handling Using SNS Value
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利用SNS价值测量船舶装卸中人脑力工作负荷的研究
DOI：
10.9749/jin.98.247
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发表时间：
1998
期刊：
影响因子：
--
通讯作者：
S. Senda
中科院分区：
文献类型：
--
作者：
Hiroaki Kobayashi;S. Senda
随着航海环境的不断变化，人们迫切需要一种能够测量操作者心理负荷的评估方法。本文提出了一种新的测量方法，利用RRV程序获得的SNS值来估计人的瞬时脑力负荷。本文首先讨论了船舶操纵中人力负荷估算的数据处理方法。然后，利用提出的测量方法，估计了两种船舶操纵情况下的人类心理工作负荷，即通过航道操纵和保持航向的近距离停止操纵。得到的结果如下：（1）通过调整所提出的滤波过程，可以选择有用的信号。(2)通过狭窄航道时操纵者的心理负荷对应于E值，E值反映了船舶和航道条件的特点，是操纵难度的标志。(3)球道改向过程中的高负荷主要表现在改向前和改向后，而不是改向时。(4)随着计划情况和实现情况之间出现B IG差异，高水平的人员工作负荷会及时显示出来。
As the navigation environment has been changing recently, the methods of evaluation that accomplish to measure the operator's mental w orkload are desired. We propose the new measuring method using SNS values obtained through RRV procedure which can estimate the h uman mental workload moment to moment. In this paper, firstly we discuss the methods of data processing which enable to estimate the h uman mental workload in ship handling. And then, using proposed measurement methods, we estimated the human mental workload in tw o ship handling situations, namely fairway passing maneuvering and stopping maneuvering in short distance with keeping ship's heading. The obtained results are as follows ; (1) The useful signal can be selected by adapting the proposed filtering procedure. (2) The operator's mental workload under passing narrow fairway is corresponding to E-value which indicates difficulty of maneuvering concerning with the c haracteristic of ship and fairway conditions. (3) High level of human workload during altering course in fairway is shown in the before and t he after altering course rather than the time of changing course. (4) High level of human workload is shown in time with the occurrence of b ig difference between planed situation and realized one.