Ethernet-based lighting-architecture

Image stabilization for high-resolution light functions

authored by: Richard Pfleiderer, Jens Karsten Schleusner, Holger Christoph Blume, Bernhard Kreipe, Sebastian Lampe, Jörg Speh
Abstract: Single pair Ethernet in combination with Ethernet endpoints provides a scalable basis for the direct control of sensors and actuators in zonal vehicle networks. As recently shown, this approach is also ideal for driving high-resolution light functions. The ability to transmit different parallel data streams
to actuators opens a wide field for new applications. Here, we show a method for stabilising high-resolution light projections in driving operation. The stabilization of the light image is based on an inertial measurement unit that records vehicle movements in real-time. An algorithm in a central control unit continuously calculates correction values for the position and distortion compensation
of the light distribution and sends this data to the lamp via Ethernet, preferably 10BASE-T1S. Two methods are combined in a proof of concept: predictive correction with video data rate and image shifting in the headlamp’s frame buffer at high frequency.
Organisation(s): Institute of Microelectronic Systems
Architectures and Systems Section
External Organisation(s): Volkswagen AG
Type: Slides to presentation
Pages: 1-29
No. of pages: 29
Publication date: 06.03.2024
Publication status: Published
Peer reviewed: Yes
Electronic version(s): https://www.repo.uni-hannover.de/handle/123456789/18141 (Access: Open)