u-blox 3D Automotive Dead Reckoning technology

Multi-level highway interchanges pose a problem to satellite positioning

Increasingly dense urban environments, park houses and multi-level interchanges pose a significant problem to navigation systems based on the reception of extremely weak satellite navigation signals.

As ever more systems (e.g. car navigation, road pricing, fleet management, emergency services, etc.) depend on reliable, uninterrupted positioning and navigation, “3-Dimensional Dead Reckoning” GNSS, the ability to calculate a position in the X, Y, and Z axis when satellites signals are blocked or impeded is becoming increasingly important.

UBX-M8030-Kx-DR GNSS single chip with 3D ADR3D Automotive Dead Reckoning chip: a new dimension in navigation
3-Dimensional Automotive Dead Reckoning (“3D ADR”) aids traditional GPS/GNSS navigation via intelligent algorithms based on distance, direction and elevation changes made during satellite signal interruption. u-blox' 3D ADR GNSS chip UBX-M8030-Kx-DR blends satellite navigation data with individual wheel speed, gyroscope and accelerometer information to deliver accurate positioning regardless of changes in a vehicle’s speed, heading or vertical displacement, even when satellite signals are partially or completely blocked. This is especially important when quick navigation decisions must be made immediately upon exiting tunnels and parkhouses.

Hardware sensor interface for after-market devices

The standard quality grade LEA-6R module is a dedicated 2D ADR solution (GWT only) for after market installations with no access to the vehicle bus and no application processor for sensor data processing. Sensors are connected directly to the module: gyroscopes via SPI and ADC and the speedpulse information from the tachometer.

Evaluation tools
u-blox‘ ADR technology can be evaluated with specific blueprints (for 3D ADR chipset) and EVK-6R (for the LEA-6R module).
Evaluation Kits which can be ordered via our Online shop at: www.u-blox.com/en/online-shop.html or via a u-blox sales-representative.

Blueprints can also be ordered upon request from a u-blox sales representative. For complete details about u-blox' Automotive Dead Reckoning chips and modules, please contact the u-blox sales representative nearest you.

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