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08 06 2017 02

Bosch and the Dutch map and traffic information provider TomTom have developed a radar localization layer for high-resolution maps for automated driving—a first. Up to now, video data has been used for this purpose.

Bosch’s “radar road signature” is made up of billions of individual reflection points. These are formed everywhere that radar signals hit—for example, on crash barriers or road signs—and reproduce the course a road takes. Automated vehicles can use the map to determine their exact location in a lane down to a few centimeters.
Signature_map_v2_en

The advantage of Bosch’s radar road signature is its robustness: unlike maps that rely exclusively on video data for vehicle localization, the radar road signature also works reliably at night and in conditions of poor visibility. Moreover, the Bosch radar road signature only transmits five kilobytes of data to a cloud per kilometer—this data volume is twice as high when using a video map. Bosch expects the first vehicles using the technology by 2020 at the latest in Europe and the US.

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Tags: Mobility

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