Tehnički vjesnik, Vol. 33 No. 6, 2026.
Izvorni znanstveni članak
https://doi.org/10.17559/TV-20250524002690
Design and Deployment of a Solar-Powered Li-Fi Transmitter-Receiver System for Intelligent Road Safety Applications
Sivaranjani U.
; Department of ECE, Parisutham Institute of Technology and Science, Thanjavur, Tamil Nadu, India
*
Mahendran S.
; Department of ME, University College of Engineering, BIT Campus, Anna University, Tiruchirappalli, Tamil Nadu, India
* Dopisni autor.
Sažetak
This paper presents a comprehensive study on the design, simulation, implementation, and field validation of a Light Fidelity (Li-Fi) based Transmitter-Receiver system integrated with a solar-powered road stud array for enhanced road safety. The system architecture employs advanced simulation tools such as OptiSystem and TINA-TI for optical link modelling and transimpedance amplifier (TIA) optimization. The transmitter unit features an Atmega microcontroller-controlled solar-powered LED array embedded in road studs, while the receiver unit integrates a vehicle-mounted photodiode sensor system to detect optical signals and trigger in-vehicle alerts. The proposed solution is developed to operate efficiently under diverse ambient lighting conditions and leverages energy-harvesting mechanisms to ensure autonomous operation. The system undergoes thorough laboratory testing, followed by real-world deployment on a test road segment in Madhakottai, Tamil Nadu, India. Performance evaluations focus on signal reliability, transmission distance, and driver feedback on safety perception, visibility, and responsiveness. The field results indicate improved driver alertness and confidence, especially under low-light and night-time conditions. This work demonstrates the practical viability of integrating Li-Fi technology into intelligent transportation infrastructure, offering a low-cost, energy-efficient solution for real-time vehicle-to-infrastructure (V2I) communication. The proposed system can be scaled for broader smart city applications and contributes to sustainable and intelligent traffic management systems.
Ključne riječi
intelligent transportation systems; Li-Fi communication; solar-powered road studs; transimpedance amplifier; vehicular alert system
Hrčak ID:
353083
URI
Datum izdavanja:
7.11.2026.
Posjeta: 0 *