Skip to main content

u-blox 3D Automotive Dead Reckoning technology

Increasingly dense urban environments, park houses, and multi‑level interchanges all have one thing in common: they pose significant problems to navigation systems because they obstruct satellite navigation signals in one way or another. 

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

Meet our 3D Automotive Dead Reckoning chip: a new dimension in navigation 

3‑Dimensional Automotive Dead Reckoning (“3D ADR”) complements traditional GPS/GNSS navigation using intelligent algorithms that process distance, direction, and elevation changes made during satellite signal interruption. u‑blox's 3D ADR GNSS chip, the 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.

The NEO‑M8L Automotive Dead Reckoning module includes integrated motion, direction, and elevation sensors. The module integrates gyroscopes and accelerometers with u‑blox’s leading GNSS platform, u‑blox M8, to achieve the highest performing indoor and outdoor positioning solution available, perfect for all road vehicle high‑accuracy  navigation applications.

In addition, accident reconstruction systems can use this sensor data to determine the location of an accident to facilitate insurance claims, even if the collision occured in a tunnel or park house. Leveraging the unsurpassed accuracy of our ADR system, high‑end navigation devices can guide drivers through several kilometer‑long tunnels. Stolen vehicles can be located instantly due to continuous monitoring of sensor data and storage of location in non‑volatile memory.

Devices for usage‑based insurance, stolen vehicle recovery, road pricing, fleet management, emergency services, and vehicle navigation depend on reliable, uninterrupted positioning including in tunnels, park houses, and stacked highways. The NEO‑M8L is the ideal solution for all road vehicle based applications, able to calculate a position in all circumstances based on its own internal sensors, regardless of satellite visibility and end‑device orientation.

Evaluation tools
You can evaluate our ADR technology  with specific blueprints (for the 3D ADR chipset) and the EVK‑M8L evaluation kit supporting the u‑blox NEO‑M8L module.
To order an evaluation kit, go to our online shop or contact a u‑blox sales representative.

You can also order blueprints upon request from a u‑blox sales representative. For complete details about our Automotive Dead Reckoning chips and modules, please contact the u‑blox sales representative nearest you.