Experimental Study On Networking In Adjustable Light Street Sections

With the rapid development of China's economy,the number of urban street lights has increased dramatically,bringing with it a great deal of cost.Changing the way lights work to make them smart can save a lot of electricity.This article uses the street lamp segment networking system to change the working mode of street lamps and achieve the effect of intelligent control of street lamps.This article uses the carrier communication chip PL3106 as the control chip,builds the power line carrier communication network,thus completes the network system within the adjustable light street section,finally realizes the intelligent control to the street lamp.Based on the system,a one-to-many simulation of carrier communication was performed for the network system in the street lamp segment.First,the overall design of the networking system within the adjustable light street segment was introduced.The network structure adopts a double-layer structure,and the data communication among the various sub-control terminals in the segment is realized by the power line carrier technology,and the carrier communication hardware part of the street lamp is designed through the characteristics of the power line carrier communication.Second,it describes in detail the Modbus communication protocol,Modbus transmission mode,and the specific functions of each part of the information frame.The Modbus function code for realizing the network of street lights is introduced,and a design proposal for the communication command of street lights networking is proposed.Once again,the software design of the networking system in the street light segment was completed.It mainly includes two parts.The first part is the overall design of the control process.The second part introduces the design of each subroutine module in detail.It mainly describes the functions and implementation methods of each subroutine module.Finally,the hardware design of the adjustable light street lamp was performed.According to the electronic ballast duty cycle dimming principle to achieve duty cycle dimming.Design carrier communication circuit and auxiliary related circuit according to the characteristics of carrier communication chip PL3106,and carry out carrier communication circuit experiment and test research,perform one-to-many power line carrier communication,test data sent and received by upper computer,analyze and process data information,It verifies that the communication between the sub-control terminals in the section network simulation system within the street light section is successful,and the host computer can perform continuous intelligent control of multiple street lamp control terminals at the same time.