Due to the lack of radio communication between road users, for example at confusing junctions, it is not possible to exchange exact position and direction data. However, these are required to close detection gaps of the vehicle sensors that may be present (e.g., ultrasound or video). Despite the available wireless technologies (V2X, 5G), the barriers to entry are high, especially for vulnerable road users (VRUs) such as cyclists and pedestrians, as expensive specialized hardware is required.
Therefore, the goal of the MobiCell project, which is designed as a feasibility study, is to prototype V2X communication using mobile communications via the smartphones of VRUs in a stand-alone V2X system. First concrete use cases are collision detection and evasive maneuver calculation in hazardous situations between VRUs (e.g., pedestrians and cyclists), for which the corresponding algorithms are being developed and made available via a cloud service. These are also to be tested in practical experiments at the end of the project. The new V2X system is based on the Cellular V2X standard and is to be integrated into a superordinate V2X system of vehicles and infrastructure in order to connect as many road users as possible.