Radar reflecting pavement markers for vehicle automation


Realiserbarhetsstudie positioneringssystem med reflektorer i vägbanan

Dependable and fail-safe control of autonomous vehicle requires multiple independent sensors for lane detection and positioning. From analysis of modern sensing technologies, we conclude that radars are underutilized for positioning and that they might be and enabling technology for achieving safety requirements posed by the standard ISO 26262. O fully utilize the radar potential, we have conducted a pre-study of equipping infrastructure with radar reflectors. We estimate that such reflectors should be installed in the lane marking, about 20-25 meters apart and with some kind of identification. We propose to design and evaluate a combi-reflector based on the traditional cat´s eye design, which will be detectable both by human drivers, radars and lidars. Furthermore, the combi-reflector can be equipped with a magnet for in-vehicle electromagnetic field sensors. From the redundancy evaluation performed, we conclude that the proposed solution increases the level of redundancy significantly. Therefore, the proposed solution could be an enabler for autonomous driving.

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Författare: Alexey Voronov, Johan Hultén, Johan Wedlin, Cristofer Englund
Utgivare: Trafikverket
Utgivningsdatum: 2016
Diarienummer: TRV 2015/97856
Antal sidor: 8
Språk: Engelska
Kontaktperson: Simon Sternlund, PLkvtvu

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