Remote system for reading traffic signs and information

Authors

  • Konrad Janisz AGH University of Science and Technology
  • Jacek Stępień AGH University of Science and Technology
  • Szczepan Odrobina AGH University of Science and Technology

Abstract

This paper presents an experimental system for remote communication between road users and traffic signs. Implemented solution consists of two modules: a transmitter (traffic sign), including novel system for remote waking-up by the passing vehicle with use of the quasi-passive (biased) diode detector circuit, and a receiver (vehicle), which is responsible for  wake-up signaling and interpreting received messages. Both modules use Wi‑Fi protocol operating in 2.4 GHz ISM band for sending data, and OOK signaling in 868 MHZ ISM band for sending wake-up signals. The paper provides theoretical analysis, description of design challenges and chosen solutions, and finally, laboratory measurements as well as the results of tests conducted in the systems’ target environment with a moving vehicle, confirming correct operation of the system.

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Published

2018-04-27

Issue

Section

Wireless and Mobile Communications