015_EETE

EETE APRIL 2013

automotive The BMW Group could soon integrate free-gesture paint defect control By Julien Happich Fraunhofer researchers have developed an efficient type of 3D camera-based quality control interface that enables technicians to finger point any detected defects to car body parts to have them recorded and documented into the inspection system. Upon quality inspection of production parts, the non-contact gesture-detection process provides the technician with visual feedback through a monitor that displays a 3D reconstruction of the car part. This system was developed by researchers at the Fraunhofer Institute for Optronics, System Technologies and Image Exploitation IOSB in Karlsruhe, on behalf of the BMW Group. “Previously, the inspector had to note all defects that were detected, leave his workstation, go to the PC terminal, operate multiple input screens and then label the position of the defect and the defect type. That approach is laborious, timeintensive and prone to error,” Free-gesture paint defect control for BMW’s bumpers asserts Alexander Schick, scientist at IOSB. The gesture control system, by contrast, improves the inspector’s working conditions considerably and creates substantial time savings. “If the bumper is fine, then he swipes over it from left to right. In the event of damage, he points to the location of the defect,” says Schick. This non-contact gesture-detection system is based on 3D data. Hence, the entire workstation must first be reconstructed in 3D. That includes the individual as well as the object with which he is working. “What does the inspector look like? Where is he situated? How does he move? What is he doing? Where is the object? – all of these data are required so that the pointing gesture can properly link to the bumper,” explains the researcher. In order to enable gesture control, the experts apply 3D-body tracking, which records the individual’s posture in real time. A standard PC and two Microsoft Kinect systems – consisting of camera and 3D sensors – suffice in order to realize the reconstruction. Schick and his team developed the corresponding algorithms, which fuse multiple 2D and 3D images together, specifically for this kind of application, and adapted them to the standards of the BMW Group. Since gesture detection does not depend on display screens, gesture interaction can be performed with real objects, without any display in the control room. Any object could be dealt with. Vehicle to vehicle communications to reach 62% by 2027 By Jean-Pierre Joosting Vehic le-to -vehic le tech nolog y based on DSRC (Dedicated Short Range Communication) using the IEEE 802.11p automotive W-Fi standard will gradually be introduced in new vehicles driven by mandates and/or automotive industry initiatives, resulting in a penetration rate of 61.8% by 2027. ABI Research VP and practice director, Dominique Bonte comments, “While in the US there is a real possibility for a DoT mandate depending on the outcome of the large scale V2X trial being held in Michigan, in Europe the CAR 2 CAR Communication Consortium which counts 12 car OEMS has signed a Memorandum of Understanding to deploy cooperative Intelligent Transport Systems and Services (C-ITS) in Europe from 2015 based on common technical specifications in line with the 2010 EU Directive calling for an urgent implementation of cooperative ITS. Similar initiatives exist in Asia (Japan, Korea and China).” Despite increasing momentum driven by both governments/ regulators and the automotive industry, the deployment of V2V and even more so V2I will take time, as the real safety benefits of V2X only can be realized when a sufficiently large part of the installed vehicle base is connected. However, complimentary technologies such as ADAS on the low end and cellular connectivity on the high end will allow emulating some of the ITS functionality defined for V2X. In particular, the rapid emergence of LTE Advanced featuring very low latency is a good candidate for offering vehicle-to-vehicle communications awaiting the widespread availability of dedicated V2V technology. 14 Electronic Engineering Times Europe April 2013 www.electronics-eetimes.com


EETE APRIL 2013
To see the actual publication please follow the link above