Ergonomic Evaluation of Manned Submersibles Based on Simulation Operations

Abstract

As the central component of the human-machine interface within manned submersible, oceanauts are entrusted with vital responsibilities such as deep-sea navigation and the operation of manipulators. To bolster the selection process of pilots and their routine training, the "Deep-Sea Manned Submersible Simulation Operation System V1.0" has been meticulously developed. This sophisticated system, modeled after the "Jiaolong" submersible, leverages the cutting-edge capabilities of 3dsMax and Unity3D platforms, seamlessly integrating six core modules: human-computer interaction, motion dynamics, collision detection, visual simulation, special effects, and audio components.Within the scope of this study, the Vienna Test System (VTS) was employed to deliver a comprehensive cognitive training regimen, aimed at enhancing bimanual coordination, selective attention, and spatial memory skills. Participants underwent simulated driving and manipulator tasks both prior to the commencement of training and at the 5-day and 10-day marks post-training. The driving tasks simulated the challenges of navigating through intricate environments such as abyssal plains, seamounts, and hydrothermal vent regions, while manipulator tasks demanded precise spatial orientation, skillful grasping, and the execution of intricate operations.To evaluate ergonomic performance and task efficiency, a suite of physiological indicators was monitored, including prefrontal oxygenated hemoglobin (HbO) concentration, mean arterial pressure (MAP), inter-beat interval (IBI), left ventricular ejection time (LVET), stroke volume (SV), and total peripheral resistance (TPR). The findings of the study suggest that engagement in simulation operations significantly impacts ergonomic indicators, and that cognitive training plays a pivotal role in bolstering physiological responses and improving task performance within operational scenarios