A Sensor Integrated Ultra-long Span LED Street Lamp System

As the LED's lumen efficiency increases rapidly in recent years, many new LED illumination applications are emerging. Based on the analysis of LED's characteristics, our optimization scheme and design methods for LED street lamps were proposed. A unique street lamp with ultra-long span and high total uniformity was designed as an example. The simulation results demonstrated that the road light utilization efficiency was 85% and the total uniformity was 0.52 for a 100times30 square meters test area at the height of 20 meters, which was much better than the current standard for the main road, proposing a challenging to the current standard with high pressure sodium lamps. Various sensors integrated with the LED street lamps were also discussed as the mainstream design concept for the next-generational LED street lamps.