TU-TESL

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In complex traffic situations, the driver's attention must be highly focused when merging and overtaking. Otherwise, traffic accidents may occur, and the auxiliary system can prevent such accidents. According to foreign media reports, the Fraunhofer Institute for integrated circuits IIS (Franhofer IIS) and its partners rise, Scania, water, ceit-ik4, baselabs, and commsignia have jointly developed accurate and reliable position detection system, which can be used for automatic lane merging of trucks. (photo source: Official Website of the Fraunhofer Institute of integrated circuits) at present, in self driving or assisted driving, the vehicle has independently undertaken specific steps, such as parking. In the European Union supported cooperation project "precision and robust positioning of automatic road transportation", the above partners developed a precise and reliable position detection system for automatic road freight transportation. At the astazero test base in Sweden, the project successfully demonstrated the process of fully automatic merging of a truck between two cars. Self driving vehicles need the cooperation of on-board systems, the connection between vehicles, and the accurate and reliable navigation solutions. In order to ensure the reliable cooperation of different systems and provide accurate position detection, intelligent sensor combination is essential. For this purpose, developers make full use of satellite signals and other navigation solutions, such as vehicle borne radar and camera. This solution combines GNSS and sensors, and uses reference stations along the line, so that the position detection can reach decimeter level accuracy. In the PRoPART project, Fraunhofer IIS uses its GNSS receiver GOOSE to provide high-precision and reliable positioning technology. Under the tunnel or bridge, or when the satellite signal is blocked by other road users, the vehicle can not get the satellite signal, which can lead to a few meters positioning error in a very short time. This is very dangerous in automatic lane merging and the driver must immediately regain control of the steering wheel. However, the technology developed by Fraunhofer research can connect interrupt signals in a short time, so there is no need for driver intervention at all. At present, there are various electronic products on the market, especially the game applications in smart phones, which can provide satellite navigation signals and generate false positions. These electronic devices can be dangerous because they may interfere with all satellite receivers in a wider range without being noticed, while goose uses the os-nma service (open service navigation message authentication) provided by Galileo satellite navigation service. By encrypting the Galileo satellite signal, the service makes it very difficult to forge the location, so as to provide a reliable location for the vehicle continuously.