This article presents the design and implementation of a control system for an adaptive light luminaire with variable light distribution. The developed solution enables dynamic shaping of the light distribution characteristics by simultaneously controlling the geometry of the optical system and the spatial distribution of the emitted light flux. The system utilizes two cooperating control mechanisms. The first is implemented by four independently controlled reflectors with adjustable angles of inclination. The second is based on the independent control of eight sections of LED light sources. The coordination of both systems enables the implementation of various operating scenarios, including symmetric, asymmetric, and adaptive configurations, with variants of narrow and wide beam distribution. The central unit of the system is an ESP32 microcontroller that performs control functions, generates PWM signals, and coordinates the operation of the actuators. The system was implemented as a dedicated embedded system. The main contribution of this work is the implementation and experimental validation of an embedded control platform integrating mechanical beam shaping and segmented LED control within a single adaptive lighting system. As part of the work, predefined control scenarios for lighting system configuration were developed and experimentally tested. The developed solution increases the functionality of adaptive lighting systems and may contribute to reducing energy consumption by directing light only where required. However, the quantitative evaluation of the energy savings was beyond the scope of the present study.
Różowicz et al. (Tue,) studied this question.