振动感应警报,以防止高速公路建设工作区的事故:一项探索性研究
Xiang Yang1, Nazila Roofigari-Esfahan2
1Department of Industrial and Systems Engineering, Virginia Tech, Blacksburg, VA 24061, USA.
Sensors (Basel, Switzerland)
|July 8, 2023
概括
高速公路施工工人可以更快地警告危险,使用集成在安全背心中的新振动系统. 该系统比传统的音频警报提供更快的反应时间和更好的可用性,提高了工人安全.
科学领域:
- 职业安全与健康问题 职业安全与健康问题
- 人与计算机的交互
- 运输工程 运输工程
背景情况:
- 撞车事故是高速公路建设工作区受伤的主要原因,尽管采取了安全措施,但仍然存在很高的伤害率.
- 工人接触交通往往是不可避免的,需要有效的警告系统来克服环境挑战,如可见性差和高噪音水平.
研究的目的:
- 评估一套集成到高速公路施工工人个人防护设备 (PPE) 中的振动性预警系统的可行性和有效性.
- 在高速公路工作区的背景下,比较振动信号与传统音频警报的性能.
- 评估不同身体位置和警告策略对信号感知,性能和可用性的影响.
主要方法:
- 为了测试振动系统与安全背心的集成,进行了三次实验.
- 评估了身体各个部位 (胸骨,肩膀,背部,腰部) 的振动信号的感知和表现.
- 评估与不同警告策略 (移动方向与危险方向) 相关的可用性和心理工作负载.
主要成果:
- 与音频信号相比,振动感应信号的反应时间比音频信号快43.6%.
- 据报道,对于胸骨,肩膀和背部与腰部的信号,感知强度和紧迫性更高.
- 提供移动方向警告策略导致精神工作量显著降低,可用性得分更高.
结论:
- 振动感应系统通过提供更快,更有效的警报,显示出在高速公路建设区提高工人安全的巨大潜力.
- 信号感知和可用性因身体位置而异,干和上背部位置更有效.
- 由于降低了认知负载和提高了可用性,移动方向警报比危险方向警报要好,这表明需要可定制系统.
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