Intelligent Street Lamp Control System With Integrated Multi Network Protocol And Dynamic Dimming

With the continuous development of optoelectronic technology and the acceleration strategic layout of networking industry,the street lamps as a very important node in the strategic layout and received great attention and achieved rapid development.The lighting source experienced to high-pressure sodium lamp,metal halide lamp to LED lights now,have made great progress both in the lighting effect or in energy saving.However,with the increasing demand for lighting,the traditional manual control ability is poor and has been unable to meet the needs of today’s society: the street lamp cannot be turned on time in the haze and bad weather conditions,the value of brightness of the lamp is not adjusted as natural light with the season changes and lead to waste of energy and so on.In order to solve the existing problems of the lighting system,this paper presents a new control mode of lamps.Adding ZigBee and Narrowband Internet of things and a variety of environmental sensor,realizes the multi network protocol for telecontrol and dynamic dimming.Haze sensor,light illuminance sensor,Temperature and humidity sensor are added in each street lamp terminal equipment and the coordinator device,to collect the environmental parameters and the data package transfer to the controller,and the brightness is controlled by a switch algorithm on the street,besides,the data will be transmitted to the PC client and they play a role of environmental parameters collection interface.In addition,the light illuminance sensor will monitor the illumination of the lamp,and compared with the value of illumination control system,It will be as a fault if the actual value does not reach the normal illuminance was determined,this position can be easily maintained by maintenance personnel.This paper tests the designed control system,tests the communication quality and packet loss rate of the ZigBee network,tests the NB-IoT,tests the PWM wave output from the dimming circuit,the stability of the main module and Accuracy is better,so the systerm has a stable conditions and an accurate data transmission.