Networked collision warning protects cyclists, pedestrians

June 02, 2021 // By Christoph Hammerschmidt
Networked collision warning protects cyclists, pedestrians
To make accidents between motor vehicles and weaker road users such as cyclists or pedestrians less likely, Continental and Deutsche Telekom have developed a system that calculates the trajectories of the participants in the background and warns them of a collision.

The collision warning system uses satellite positioning (GPS), acceleration sensors, mobile communications and cloud computing. For this purpose, the vehicles transmit their position and, via a mobile radio connection, their acceleration vectors to the cloud, motorised vehicles additionally. Bicycles or e-scooters must be equipped with a networked computer for this purpose. A back-end computer in the cloud calculates the paths for the next five seconds and sends a warning to the car and the cyclist's terminal if a collision is imminent. A certain technical sophistication lies in the assignment of the cloud computer to the respective road users involved: To ensure that the warnings reach both road users as quickly as possible, the cloud computer in the mobile network that is closest to the location of the possible collision is always used. Technicians speak of multi-access edge computing.

The partners are further developing collision warning for international use in everyday life and will present the results at the ITS World Congress. The leading trade fair for intelligent transport systems will take place from 11 to 15 October in Hamburg. The collision warning system is being developed in the Reallabor Hamburg project and is funded by the Federal Ministry of Transport and Digital Infrastructure. Initial tests in real road traffic have already been successful, Continental informed.

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