Comparisons of Energy-Saving Strategies for Parking Garages Based on Smart Lighting Systems

In the context of increasingly pressing global energy issues, the lighting energy efficiency of large urban parking lots is gradually becoming a focal point of interest in building energy conservation. This study delves into energy-conserving approaches for parking garage illumination, specifically examining traditional, sensor-based, and parking space allocation methods. In sensor-based mode, the lights turn on when a vehicle arrives in the parking lot. In allocation mode, a target parking spot is assigned to the vehicle, and the lights along its path are illuminated. Through simulation experiments conducted on a prototypical garage, it is found that sensor-based and parking space allocation modes exhibit superior energy efficiency compared to the traditional mode, while maintaining functionality. These findings suggest the potential for wider adoption of these advanced strategies.