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Wireless analysis of in-car networks

Posted: 03 Jul 2009     Print Version  Bookmark and Share

Keywords:WLAN  pWLAN  vehicle 

Modern driver assistance systems are indeed capable of looking into the distance, but only with sensors (Radar, Lidar, ultrasonic, cameras, infrared, etc.) installed on-board the vehicle. Their ranges, and consequently their prediction abilities, are limited. In efforts to prevent hazardous driving situations and optimise traffic flow, it is considerably more promising to evaluate information from other traffic participants as well. Communication with the external environment is necessary to utilise measured values from external sensors. This takes other vehicles into consideration (Car2Car communication) as well as stationary systems known as "roadside units", e.g. at traffic lights or tunnel entrances (Car2Infrastructure communication). The applications are extremely diverse, ranging from warnings of traffic jams around a curve with restricted visibility to the transport of current information related to driving route optimisation or parking situations. The required transmission technologies such as WLAN and pWLAN are already available.

While the advantages sound promising for all traffic participants, the challenges for developers are great too. Although the developer had extensive capabilities for analysing a vehicle's various data networks and their interactions with one another, today the developer is faced with the dilemma of not being able to sit in two or more vehicles simultaneously.

View the PDF document for more information.





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