Design Of The Subway Station Intelligent Lighting System Based On CAN

With the rapid progress of society and the continuous development of the infrastructure construction,the construction of the subway has entered a high-speed development channel.Acting as an important part of the development process of modern subway,subway station has also received more and more attention.The lighting system of subway station is the necessary facility to provide illumination,it not only has to provide the necessary illumination for passengers and staff,also requires to save energy based on increasing passengers' lighting experience.However,most of the subway stations in our country adopt the traditional lighting methods,which cannot provide a good performance in intelligent control,energy saving,lighting experience and so on.Therefore,we put forward the subway station intelligent lighting system based on CAN,which has certain practical value and theoretical significance.We expect to design a lighting control system through optimizing the lighting control strategy and on the basis of the full study of the domestic and international subway station interior lighting experience,which can collect environmental illumination and traffic data in real time,and adjust the brightness of the light environment through algorithm.We mainly completed the following work:We determine the control strategy and scheme of Metro lighting system.Though studying the ergonomics,combined with the discipline of knowledge to the subway station lighting system lighting,lighting layout,lighting brightness,control system of comfort and energy conservation,we put forward the suitable artificial intelligent control strategy and scheme.We design and simulate the lighting controller based on fuzzy control.Though studying on Fuzzy Control,we design a illumination controller based on fuzzy control and fuzzy adaptive PID control according to the expert knowledge and field debugging experience,and the output of the previous control system(expected illumination value)is the input of the latter control system.We also establish a system simulation model in Matlab's Simulink toolbox,and compare it with the simulation results of the conventional PID control.Finally we get the optimized intelligent control algorithm,and provide guidance for subway station of intelligent lighting control algorithm.We design hardware circuit of intelligent lighting system based on CAN bus.We design overall scheme based on ARM core and CAN bus intelligent lighting controller,build the each function module in the specific circuit,complete the hardware of the whole system of welding work,debug the various modules related function,and implement the hardware of the basic functions.We accomplish software design of intelligent lighting system based on CAN bus.We design CAN bus protocol stack,accomplish the main program,each function module and the PC client software design and program preparation,implement the whole system's communication from a node to the controller and the controller to the PC client.