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Positioning module for autonomous driving
26 June 2019, Telecoms, Datacoms, Wireless, IoT
The ZED-F9K from u-blox is a high-precision multiband GNSS (global navigation satellite system) module with built-in inertial sensors. The module combines the latest generation of GNSS receiver technology, signal processing algorithms and correction services to deliver down to decimetre-level accuracy within seconds, addressing the evolving needs of ADAS (advanced driver assistance systems) and automated driving markets.
The dead reckoning module builds on the u-blox F9 technology platform featuring compatibility with modern GNSS correction services to further improve positioning accuracy by compensating for ionospheric and other errors. The multi-constellation RTK (real-time kinematics) receiver module receives GNSS signals from all orbiting GNSS constellations. A greater number of visible satellites improves positioning performance in partially obstructed conditions, while increased satellite signal diversity delivers faster convergence times when signals are interrupted.
Inertial sensors integrated into the module constantly monitor changes in the moving vehicle’s trajectory and continue to deliver lane-accurate positioning when satellite signals are partially or completely obstructed, as is the case when the vehicle is in parking garages, tunnels, urban canyons or forested areas.
When satellite signals become available again, the module combines inertial sensor data with GNSS signals to deliver fast convergence times and high availability.
By providing lane-accurate position information, the ZED-F9K meets the needs of ADAS and autonomous driving applications, as well as head units and advanced navigation systems. The module’s accuracy and low latency also makes it ideal for automotive OEMs and Tier 1 customers developing V2X (vehicle to everything) communication systems. By continuously sharing their location with other traffic participants, these V2X systems contribute to increasing overall road safety and reducing traffic congestion.
For more information contact Andrew Hutton, RF Design, +27 21 555 8400, andrew@rfdesign.co.za, www.rfdesign.co.za |
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