Inside Unmanned Systems

AUG-SEP 2017

Inside Unmanned Systems provides actionable business intelligence to decision-makers and influencers operating within the global UAS community. Features include analysis of key technologies, policy/regulatory developments and new product design.

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Page 49 of 67

50 unmanned systems inside August/September 2017 sponsored by u-blox locate, communicate, accelerate Autonomous driving is an exciting advancement that will, among other ad- vantages, reduce the chance of accidents caused by distracted driving and other roadway issues. But before that dream be- comes reality, the industry must solve one of the most safety critical prerequisites— the need for highly accurate and trustwor- thy car positioning and speed at any time, in any condition with no restrictions. The autonomous system key chal- lenges are that they must be able to es- tablish an exact starting position within an HD map, to enable the system within authorized areas only (e.g. highways, 4 lanes road without crossing), and in any weather condition (e.g. rain, sunset), with or without landmarks required by the vi- sion sensors. It must identify critical areas (e.g. to reduce speed). Cameras and even inexperienced drivers can fail in these tasks. The car must cope with road lay- out changes and help correct map errors (crowd-sourcing). Critical sensors (e.g. speed) must be regularly calibrated. Every safety analysis shows that the au- tonomous system will require the use of several independent location technologies including, and especially, a functionally- safe GNSS. Each (independent) sensor w ill prov ide positioning information with a certain confidence level and the autonomous driving system will make a safe decision based on that data. Fail-safe modes (in case one or more sensors are lost) have to be anticipated and managed. Any OEM or Tier 1 will have to be able to demonstrate to authorities that it used all available technologies to mitigate the risk of accident to the absolute minimum, should a problem occur. WHY GNSS IS CRITICAL Such a functionally-safe and secure GNSS must deliver decimeter-level accuracy and integrity, or the ability to guarantee a po- sition with ASIL-type error probability. Security has to be f lawless. It must also be affordable and manufactured in high volumes to be able to monitor and guaran- tee automotive ppm quality levels. "GNSS is indispensable as the unique source of absolute positioning and tim- ing, velocity and heading," said Franck Berny, product strategist with u-blox. AT THE HEART OF THE DRIVERLESS CAR Unmanned systems innovators are working at break-neck speed to identify and assemble the world's best sensor and technology systems that will pave the way for driverless cars. Swiss company u-blox, a global leader in wireless and positioning chips, is helping guide the way to the driverless road ahead. " GNSS ACCURACY MATTERS; BUT EVEN MORE IMPORTANT IS ITS ABILITY TO GUARANTEE A POSITION."

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