The Design Of Intelligent Lighting Control System Based On ZigBee

With the popularity of LED lights, because of its single function, poor flexibility, high electricity costs and inconvenient to manage, traditional lighting system is difficult to meet the requirement of us who need higher lighting condition for their working and home environment.Moreover, with the emergence of communication technology, computer technology, the development of network technology and energy crisis, intelligent lighting system has become a hot research. This paper designs an intelligent lighting control system based on ZigBee wireless communications and Stm32 controller.First, ZigBee nodes design. Using multiple ZigBee terminal modes to form a ZigeBee network, these nodes connect with infrared sensors and light intensity sensors, various sensors are responsible for collecting data and then transfer to the controller through ZigBee terminal nodes which conduct wireless communications.Second, design the host controller. Using STM32F103RBT6 as the central processor, the controller receives data from the sensor through the serial communication of the ZigBee coordinator node, then according to the actual need to generate PWM pulse, finally with the LED drive implementations to reach the goal of intelligent dimming by PWM pulse signal.Third, with the actual needs of some particular occasions, among discussing the importance of light uniformity for some special scenes, we proposed a light control algorithm which considers the uniformity and illumination and last to emulating verify this algorithm.Finally, test the entire system. The testing system includes the human body infrared sensor test, light intensity test. The LED driver dimming test and ZigBee network test. And include a monolithic alignment. The testing results basically meet the design requirements of the system.