基于DMX512的舞台电脑灯控制系统  

The Design of Micro Controller Control System of Intelligent Beam Based on DMX512 Protocol

作　　者：闵玉萍 

机构地区：[1]武汉天海腾龙科技发展有限公司

出　　处：《可编程控制器与工厂自动化（PLC FA）》2015年第2期46-50,共5页Programmable controller & Factory Automation(PLC & FA)

摘　　要：本文从硬件和软件两个部分对基于DMX512协议的8通道舞台电脑灯控制系统进行研讨,并对系统进行了控制精度分析和故障分析。系统采用TI公司的高性能16位单片机MSP430F147作为主控制器,两相步进电机作为执行元件,NJM3771为驱动器,并采用恒转矩斩波驱动作为两相步进电机的驱动方式。This paper analyzed the control system of intelligent beam from hardware and software, and analyzed the causes which influence the precision of the system. MSP430F147 is used as main controller which is 16 bit microcontroller produced by TI. Two phases stepping motor which is driven by invariable torque and dual chopper driver, is used as executing component. NJM3771 is used as the driver and realized the drive of step motor reliably.

关 键 词：电脑灯 步进电机 MSP430F147 

分 类 号：TM346[电气工程—电机]