Design and implementation of wireless diagnostic system for street light dimming applications

Modern street lighting systems are demonstrating capability of saving energy through light dimming in the case of no vehicle motion. Continuous monitoring of street lamps is essential to ensure the reliability of street lighting systems. This study presents a new electronic design and implantation of a wireless diagnostic system which is capable of continuously measuring the lamp current and detecting faulty lamps. The system sends a warning SMS message to the authorized person reporting the status of the lamps as either working properly or faulty. The presented diagnostic system includes Global System for Mobile Communication (GSM) with Subscriber Identity Module (SIM) card connected to the Arduino unit to allow SMS messaging. The implemented system characterizes the capability of scaling and controllable time response.