Intelligent Street Light System with Power Saving Function

Abstract

One of the supporting technologies for a smart city is the smart LED streetlight system, which also provides low-cost, low-power outdoor lighting with benefits for both car users and pedestrians. Sensor integration and wireless sensor modules based on ZigBee can provide an ideal platform for an innovative streetlight LED application. Psychological evidence suggests that various levels of color temperature may have a direct effect on the circadian rhythm of humans. Correlated color temperature dependent illumination therefore offers important lighting output in low visibility areas, both in terms of energy efficiency and in overcoming traffic accidents. Furthermore, real-time implementation of the proposed system shows perfect transmission-reception parameters such as throughput and signal strength among the different LED streetlights, which fulfills the wireless communication range and signal quality between each LED streetlights.