本科毕业论文-自适应LED路灯控制器设计.doc

自适应LED路灯控制器设计 摘要 自适应LED路灯控制器是针对在城市照明上所存在的的能源消耗而设计出的新型节能控制器,它从半导体照明及自适应控制两方面共同实现节能，是将集稳压控制、软起动功能、自动起停、智能调光控制于—体的路灯控制装置。PWM（脉冲宽度调制信号）调光和智能路灯控制系统相结合是该控制装置的主要特点，利用微处理器的数字输出来对模拟电路进行控制LED路灯亮度的效果，以实现路灯的自适应功能。 本文对自适应LED路灯控制系统的研制进行了深入分析和研究。讨论了自适应路灯控制系统的构思、设计方案，介绍了该装置的系统设计、工作原理，对大功率LED、单片机AT80C51及路灯控制器进行了详细的介绍，分析了以AT80C51单片机为主控单元的硬件电路，对电路的主程序进行了软件设计，采用了时间控制，环境参数控制以及手动控制相结合的控制策略。 MCS-51系列单片机无PWM输出功能，所以采用定时器配合软件的方法共同实现。通过本文的研究，设计完成了具有实用性的自适应LED路灯控制器。并为产品化设计提供依据。 关键词　自适应控制；LED；路灯控制器；PWM Adaptive controller design for LED street lamps Abstract Adaptive controller for LED street lamps is the new energy-saving controller to design for the existence of lighting energy consumption in the city , it can be both semiconductor lighting and Controller to achieve energy-saving, is to set regulator control, soft-start function ,automatically cease, intelligent voltage control in the one street lamp control device.PWM (pulse width modulation signal) lamps dimming and intelligent control system combined is the main characteristics of the control devices,using the microprocessor Digital output to control analog circuits,use adjusting the duty cycle of pulse signal,to achieve the effect of Change the brightness of LED lamps ,in order to achieve the adaptive function of street lighting. This paper it analysis and research for adaptive LED street lamp control system in depth discussed the idea and schematic design of adaptive street lamp control system, introduced the System design and working principle of the control device,introduced the high-power LED, AT80C51 single-chip microcomputer and street lamp controller in detail, the analysis of a single-chip microcomputer AT80C51 main control unit for the hardware circuit for the pulse width of the LED output signal (PWM) control of the software design, the use of time control, control of environmental parameters, as well as a combination of manual control of the control strategy. MCS-51 family of single-chip non-PWM output funct