对于视力受损的驾驶员而言,定向振动触觉危险警告
Jing Xu1,2, Felix M Kölsch3, Georg N Dyszak3
1Department of Ophthalmology, Harvard Medical School, Schepens Eye Research Institute of Massachusetts Eye and Ear, Boston, USA.
Assistive technology : the official journal of RESNA
|July 2, 2025
概括
一个新的危险预警装置显著减少了驾驶员的响应时间和碰撞中心视力损失 (CVL) 和同名场损失 (HFL). 这项技术对改善视力障碍者驾驶安全有前途.
科学领域:
- 眼科和视觉科学 眼科和视觉科学
- 人与计算机的交互
- 汽车安全工程 汽车安全工程
背景情况:
- 视力障碍,包括中视力损失 (CVL) 和同名视野损失 (HFL),可以显著损害驾驶能力并增加事故风险.
- 传统的驾驶辅助器可能无法充分解决CVL和HFL患者所经历的特定视野缺陷.
- 开发辅助技术对于提高视力障碍司机的独立性和安全性至关重要.
研究的目的:
- 为视力受损驾驶员评估一种新型振动触觉危险预警装置的有效性.
- 评估装置对模拟驾驶环境中的车响应时间和碰撞率的影响.
- 在不同类型的视力障碍 (CVL,HFL) 和正常视力 (NV) 中比较设备的性能.
主要方法:
- 一项概念验证驾驶模拟器研究,涉及三组参与者:CVL,HFL和NV.
- 参与者完成了带有和没有振动触觉警报装置的驾驶任务.
- 当碰撞风险很高时,该设备提供了接近行人危险的方向警告.
主要成果:
- 警告装置显著减少了CVL (0.54s) 和HFL (0.30s) 参与者的制动响应时间,但不是NV参与者.
- 对于HFL参与者来说,警告对盲人侧的危险更有效 (减少0.57秒),而不是视力侧的危险 (减少0.10秒).
- 对于CVL参与者 (11%至0%) 和HFL参与者 (30%至1.7%对盲侧危险) 的碰撞率显著下降.
结论:
- 振动触觉危险预警装置显示,在有中心视力损失和同名场损失的个体中,有很大的潜力提高驾驶安全.
- 这些发现表明,有针对性的定向警告可以减轻与特定视野缺陷相关的风险.
- 需要进一步的研究来验证这些发现在现实世界的驾驶条件下,并改进技术.
相关概念视频
Sight Distance in a Vertical Curve
135
Sight distance on vertical curves is critical in roadway design. It ensures drivers can see far enough ahead to identify and respond to hazards effectively. This directly impacts safety, driver comfort, and the overall efficiency of the transportation network.Vertical curves are classified into crest and sag curves based on their geometry. For crest curves, sight distance is determined by the line of sight between a driver's eye and a small object on the road's surface. Design parameters for...
135
Survey Safety
177
Surveying near highways, rough terrain, or power lines involves significant risks. Working along highways is particularly dangerous and requires the use of warning signs and flagmen. It is safest to avoid working directly on roads and use offsets whenever possible. When highway work is unavoidable, it must follow all safety guidelines. Surveyors should wear bright clothing, such as orange reflective vests, to ensure visibility to motorists, coworkers, and hunters. In construction zones, wearing...
177
Visual Agnosia
318
Visual agnosia is a condition characterized by the inability to recognize visually presented objects despite having normal vision. For instance, a person with visual agnosia can describe the shape and color of an object but cannot identify or name it. This impairment does not affect their visual field, acuity, color vision, brightness discrimination, language, or memory. An example of this condition in a social setting is someone at a dinner party asking for "that silver thing with a round...
318
Depth Perception and Spatial Vision
956
Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.
956
Direction of Acceleration Vectors
9.9K
Acceleration occurs when velocity changes in magnitude (an increase or decrease in speed), direction, or both. Although acceleration is in the direction of the change in velocity, it is not always in the direction of motion. When an object slows down, its acceleration is opposite to the direction of its motion. This is commonly referred to as deceleration. However, the term deceleration can cause confusion in analysis because it is not a vector; it does not point to a specific direction with...
9.9K


