Abstract
This study aims to develop a human-centric, intelligent lighting control system using adaptive LED lights in roadway lighting, integrated with an imaging luminance meter that uses an IoT sensor driver to detect the brightness of road surfaces. AI image data are collected for luminance and vehicle conditions analyses to adjust the output of the photometric curve. Type-A lenses are designed for R3 dry roads, while Type-B lenses are designed for W1 wet roads, to solve hazards caused by slippery roads, for optimizing safety and for visual clarity for road users. Data are collected for establishing formulae to optimize road lighting. First, the research uses zonal flux analysis to design secondary optical components of LED roadway lighting. Based on the distribution of LED lights and the target photometric curve, the freeform surface calculation model and formula are established, and control points of each curved surface are calculated using an iterative method. The reflection coefficient of a roadway is used to design optical lenses that take into account the illuminance and luminance uniformity to produce photometric curves accordingly. This system monitors roadway luminance in real time, which simulates drivers’ visual experiences and uses the ZigBee protocol to transmit control commands. This optimizes the output of light according to weather and produces quality roadway lighting, providing a safer driving environment.
Highlights
LED light sources are currently widely used in the lighting market
An imaging luminance meter is used for roadway lighting calculations, with a wider range of sensing and an intelligent light control system that are used to build an adaptive roadway lighting control strategic system, which aims to achieve efficient human-centric lighting
This paper aims to propose a systematic method that makes roadway lighting intelligent by integrating an imaging luminance meter (ILM) device, which will hopefully garner and ensure the safety of the drivers
Summary
LED light sources are currently widely used in the lighting market. LEDs have become a new-generation light source and its directional light-emitting features hold a number of optical advantages [4]. When this new generation of LED lights are used in commerce, or to illuminate places such as homes and roads, they must have a good optical design to achieve the required lighting quality and efficiency. In order to achieve the goals mentioned above, LEDs must change the output of the beam angle with the help of secondary optical components to provide appropriate lighting for all kinds of places, so as to meet the expectations and needs of road users
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
