System Integration and Participant-Level Validation of a Gate-Based Contactless Multimodal System for Railway Pre-Duty Screening
Cheolwoo Lee, Taemyoung Yin · 2026
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Description
Cheolwoo Lee and Taemyoung Yin validated a walk-through gate that screens railway staff before duty without touching them, in a study published in 2026. Fitness checks must be fast and objective so operations are not disrupted. The gate combines ID cards, infrared temperature, camera-based pulse reading, and a breath alcohol sensor, with signal checks and on-site processing. Three hundred adults took both gate and reference measurements of temperature, heart rate, blood pressure, and alcohol.
Average biases sat near zero for all five measures, and agreement statistics ran from strong to near-perfect. After correction for multiple testing, errors did not consistently track age, sex, body size, skin type, or glasses. Two measures' errors did grow with the true value's size. The authors call the integration feasible indoors, with field validation still owed before real deployment.
Catalog record
| CREATOR | Cheolwoo Lee, Taemyoung Yin |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 50 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |