Vehicle positioning for ADAS

“Where Am I ?”

Advanced Drivers Assistance Systems (short: ADAS) will help save millions of lives globally, eliminate congestion, reduce emissions - and allow to rebuild cities around people and not around cars.

ADAS of SAE Level 3+ need to be recognized as major technology leap. Those systems need to bring much more performance than systems of lower automation levels. Developing ADAS of SAE Level 3+ means: Build and integrate a comprehensive system of sensors, algorithms, actuators, compute power and artificial intelligence to provide answers for the four fundamental questions of vehicle automation:

Since the beginning of the collaboration of NAVENTIK’s founders as a research group at University of Technology Chemnitz in 2011, the R&D focus was to find a technical answer for the first question of vehicle automation at SAE Level 3+: “Where Am I ?”


As of today, no positioning solution is available that can fully meet the requirements of the automotive mass market for ADAS level 3+!

Why can ADAS then be on the streets today? Well, today’s ADAS in serial manufactured cars just work with landmark based positioning to compute a relative position. By utilizing front cameras, the ADAS recognizes lane markings and the vehicle’s relative position in between. This is the starting point to trigger an automated driving function. Preconditions to engage the ADAS are open highway surroundings, non- complex traffic situations, the simple existence of lane markings and sufficient weather conditions (no rain, no fog, no snowfall).

For the deployment of ADAS of Level 3+ with a much broader range of safety critical driving maneuvers in more complex (urban) environments, the absolute position on a HD map will become a crucial information beside the relative position. It is clear: To deploy ADAS of Level 3+ anywhere, anytime and on mass market scale, the ADAS needs maximized accuracy, availability, robustness, functional safety and scalability. This can only be achieved by adding a sufficient absolute positioning system as the complementary technology parallel to the relative positioning. 

The technology gap for the deployment of a sufficient absolute positioning system for ADAS L3+ gets obvious, if a comparison along the defined requirements for an ADAS is made. The following target system for an absolute positioning, compliant to the requirements of ADAS Level 3+, can be derived:


What if there could be a positioning solution, compliant to all the technical requirements of ADAS Level 3+, at a unit price below all systems that are currently available on the GNSS market?

PATHFINDER

The way to reliable and accurate positioning for ADAS.

The basic idea behind NAVENTIK’s PATHFINDER technology is to leverage the required positioning performance by combining the highly advanced sensor stack of the ADAS Level 3+ system with a safety-compliant GNSS sensor, dedicated for the sensor data fusion on an embedded, software based positioning platform. This integrated and centralized approach is totally different to the decentralized standalone approach of the legacy GNSS technology vendors.

In principle, we at NAVENTIK see the following fundamental needs for an ADAS and autonomous driving positioning system to reach continuity sub-meter accuracy, and especially important, that this accuracy can also be trusted. 

High-performance Software Positioning Engine

Carrier phase based positioning engine with advanced error modeling and rapid convergence times, interference mitigation and monitoring. 

Sensor Fusion
at
Vehicle Level

Adding inertial or vision aided navigation increases availability and continuity of the solution, seamless integrated on vehicle ECU.

Next Generation Augmentation Services

Integration of precise satellite and atmospheric corrections including integrity measures.

Traceable
Integrity
Chain

Development according to automotive safety standards (ISO26262) to meet Automotive Safety Integrity Levels (ASIL).

With PATHFINDER we implement these principles as an integrated and centralised approach, divided into
two basic technology components:

Both technology components can be deployed as standalone products – independently from each other. For example, PATHFINDER FUSION works as positioning engine also in combination with third party GNSS receivers. But with both components combined, NAVENTIK provides the most comprehensive automotive positioning platform – out of one hand. The derived final integration architecture for ADAS looks as follows:

“It totally makes sense. Why should I buy an RTK/INS System with a costly IMU, if my ADAS system is 5G connected and already has a good ASIL IMU deployed for chassis controls? Let’s just combine this with GNSS!” 

Current release of PATHFINDER GNSS & PATHFINDER FUSION available under R&D License
(Software libraries for integration on your ADAS platform or delivered on NVIDIA® Jetson AGX™)

Address 

NAVENTIK GmbH
Am Walkgraben 13
09119 Chemnitz
Germany

Contact 

  hello@naventik.de
   +49 371 337 1370

Feedback

We are curious to hear how you use PATHFINDER and what you are experiencing. Send your ideas and suggestions!