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RFID im Blick

Cooperative Position Finding For Pedestrian Safety

Use Cases | By PR RFID im Blick | 01 July 2013
The cockpit signalizes The cockpit signalizes Photo: BMW

Cooperative sensor technology: Project „Ko-TAG“ investigates Car to X Communication

How can protection for vulnerable road users be increased? The cooperative project Ko-TAG deals with this question, investigating cooperative sensor technology combined with active RFID-like transponders. The objective is to reduce the number of fatal accidents in road traffic.

Recognizing and evaluating dangerous situations

In dangerous situations drivers must react within a fraction of a second. The partners' objective is to develop a driver assistance system which recognizes and evaluates dangers foresightedly. Does the road user stand still or does he drive and where or how fast does he move? In case of an impending collision the system warns the driver or takes a counter measure such as active breaking. The Fraunhofer IIS contributes an angle measuring system, inertial sensors as well as an innovative antenna design.

Preventing future accidents by intelligent objects

„We use an active system in the 5.8 GHz band to locate vulnerable road users by means of a multi antenna system which was already prototypical integrated into a vehicle's bumper. The fact that playing children will be registered even if they're covered by parking cars is an advantage in relation to conventional automotive systems“, Marc Faßbinder, team leader adaptive locating systems at the Fraunhofer IIS, explains. „The group antenna which we developed doesn't only detect the horizontal but also the vertical direction.“ Basic technologies such as angle and transit time measurement serve accurate position determination.

Inertial sensors detect special situations

Pedestrians are equipped with active SafeTAGs. The sensors integrated into the tag register and send changes of acceleration and location. „Using this information models of movement can be classified which also detect special cases. That might be for instance if a transmitter was thrown onto the street or if a participant isn't in danger because he's sitting in a car“, Faßbinder continues.

Increased traffic security

The project is based on the predecessor „Amulett“, which laid the foundations concerning finding the position of vulnerable road users. Furthermore in the project „Ko-PER“ the partners investigated how the system can be used for the vehicle to locate its own position. Thus tags mounted on traffic lights might contribute to traffic security at crossroads by enabling the vehicles to locate themselves.

The Project Ko-TAG

The project Ko-TAG (end of the project 2013) is part of the research initiative „Cooperative driver assistance systems (Ko- FAS)“ of the BMWi. Continental Safety Engineering International GmbH, Daimler AG, BMW Group Forschung und Technik, the TU München, the Steinbeis-Innovationszentrum Embedded Design und Networking, the Fraunhofer IIS as well as the Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute HHI are involved.

The complete interview was published in the April issue 2013 of the magazine „RFID im Blick“.

At the RFID Conference 2013 Tobias Schöllermann, BMW Group, will talk about the development of innovative NFC applications at BMW..

Last modified on Wednesday, 21 October 2015 17:25