Remote system for reading traffic signs and information

Konrad Janisz, Jacek Stępień, Szczepan Odrobina


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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N. M. Din, C. K. Chakrabarty, A. Bin Ismail, K. K. A. Devi, and W.-Y. Chen, "Design of RF energy harvesting system for energizing low power devices," Progress In Electromagnetics Research, Vol. 132, 49-69, 2012

Harry Ostaffe, "RF-based Wireless Charging and Energy Harvesting Enables New Applications and Improves Product Design," Available from:, Accessed on Jan. 2, 2017.

Gustaw Mazurek, "Performance Study of Solar Power Source for Wireless Systems," International Journal of Electronics and Telecommunications, 2013, vol. 59, no. 3, pp. 271–276, DOI: 10.2478/eletel-2013-0032.

Alexander Cherepanov, Igor Tyshchenko, Mariia Popova, and Dmitriy Vakhnin, "Building Energy Efficient Wireless Sensor Networks," International Journal of Electronics and Telecommunications, 2017, vol. 63, no. 1, pp. 45-49, DOI: 10.1515/eletel-2017-0007.

Jie Wang, Qinghua Gao, Yan Yu, Hongyu Wang and Minglu Jin, “Radio-Triggered Power Management in Wireless Sensor Networks,” Wireless Sensor Networks - Technology and Applications, 2012, Dr. Mohammad Matin (Ed.), InTech, DOI: 10.5772/39189. Available from:, Accessed on Jan. 2, 2017.

Felix Mariut, Cristian Fosalau, Daniel Petrisor, "Traffic Sign Recognition using Wireless Communication," presented at International Conference and Exposition on Electrical and Power Engineering (EPE 2012), Iasi, Romania, Oct. 25-27, 2012.

Skyworks Solutions, "RF Diode Design Guide," Available from:, Accessed on Jan. 2, 2017.

Kavuri Kasi Annapurna Devi, Norashidah Md. Din, and Chandan Kumar Chakrabarty, "Optimization of the Voltage Doubler Stages in an RF-DC Convertor Module for Energy Harvesting," Circuits and Systems, 2012, 3, 216-222.

David W. Knight, "Diode detectors for RF measurement," Available from:, Accessed on Jan. 2, 2017.

Avago Technologies, "Surface Mount RF Schottky Barrier Diodes," HSMS-282x datasheet, Nov. 26, 2014.

Agilent Technologies, "Is Bias Current Necessary?", Application Note 987, 1999

Avago Technologies, "Design of an Input Matching Network for a DC biased 850 MHz Small Signal Detector", Application Note 1187, 2010


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