Limited visibility from a mobile machine cab can decrease task performance and lead to accidents. Therefore, it is important to consider visibility issues already in the design phase. This paper describes the use of virtual prototyping in the evaluation of see-through features of mobile work machines. The goal is to evaluate whether two different machine boom transparency levels have an effect on task performance. In addition, two alternative placements of overlaid information in the operators’ field of view are assessed. A within-subject design was used in this study. Based on the results, there was no significant difference in performance between the transparency levels. However, the test participants preferred a transparency level of 70–80% (where 0% is completely opaque). Similar results were found with the placement of the overlaid information, which had no significant effect on task performance. Both placements, on the windscreen and on the tunnel wall, were equally favoured by the participants. The findings of this study contribute to the design of see-through features for mobile work machines. In addition, the study demonstrates the use of virtual prototyping in the design of novel features in human–machine systems.

中文翻译：

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在移动设备的透视功能设计中的虚拟样机

移动式机舱的视野有限，会降低任务性能并导致事故。因此，重要的是要在设计阶段就考虑可见性问题。本文介绍了虚拟样机在移动工作机的透视功能评估中的使用。目的是评估两种不同的机器动臂透明度是否对任务性能产生影响。此外，还评估了操作员视野中覆盖信息的两个替代位置。在这项研究中使用了受试者内部设计。根据结果​​，透明级别之间的性能没有显着差异。但是，测试参与者更喜欢将透明度设置为70-80％（其中0％是完全不透明的）。在放置重叠信息时发现了类似的结果，这对任务性能没有显着影响。参与者同样喜欢在挡风玻璃和隧道墙上的两个位置。这项研究的发现有助于移动工作机的透视功能的设计。此外，该研究还演示了在人机系统的新颖功能设计中使用虚拟原型的方法。