测试不同模式下机器人在救援中的表现对人员感知的影响
Analyzing Human Perceptions of a MEDEVAC Robot in a Simulated Evacuation Scenario
- 设计三类机器人操作模式对比人类感知
- 快速自主模式导致情绪更差、安全感更低
- 伤员与旁观者反应无显著差异，适合人机协作研究
自主系统在医疗后送（MEDEVAC）场景中具有潜力，但现有应用忽视了人机交互（HRI）研究的关键发现。研究表明，人类对机器队友的感知直接影响其表现。本研究采用混合因子设计，评估参与者在模拟救援场景中对MEDEVAC机器人的感知。参与者扮演伤员（CAS）或旁观者（BYS），经历三种被试内条件：自主慢速（AS）、自主快速（AF）和遥控（TO）。每次试验中，机器人需完成11米路径，搬运伤员并避开静止旁观者，抵达救护车交接点。试验后，参与者填写问卷，评估情绪状态、感知安全性和社交兼容性。结果显示，操作模式对情绪状态和感知安全有显著影响，成对分析表明AF模式负面作用明显。伤员与旁观者之间无持续差异。
原文摘要 · Abstract (English)
The use of autonomous systems in medical evacuation (MEDEVAC) scenarios is promising, but existing implementations overlook key insights from human-robot interaction (HRI) research. Studies on human-machine teams demonstrate that human perceptions of a machine teammate are critical in governing the machine's performance. Here, we present a mixed factorial design to assess human perceptions of a MEDEVAC robot in a simulated evacuation scenario. Participants were assigned to the role of casualty (CAS) or bystander (BYS) and subjected to three within-subjects conditions based on the MEDEVAC robot's operating mode: autonomous-slow (AS), autonomous-fast (AF), and teleoperation (TO). During each trial, a MEDEVAC robot navigated an 11-meter path, acquiring a casualty and transporting them to an ambulance exchange point while avoiding an idle bystander. Following each trial, subjects completed a questionnaire measuring their emotional states, perceived safety, and social compatibility with the robot. Results indicate a consistent main effect of operating mode on reported emotional states and perceived safety. Pairwise analyses suggest that the employment of the AF operating mode negatively impacted perceptions along these dimensions. There were no persistent differences between casualty and bystander responses.
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