基于无线控制的舞台灯光斑切割系统  

Stage Light Spot Cutting System Based on Wireless Control

作　　者：蒋伟楷 Jiang Weikai(Guangzhou Haoyang Electronic Co.,Ltd.)

机构地区：[1]广州市浩洋电子股份有限公司

出　　处：《自动化与信息工程》2019年第5期42-48,共7页Automation & Information Engineering

基　　金：广东省省部产学研合作专项资金项目（2013B090600018）;番禺区创新创业领军团队项目（2018-R01-1）

摘　　要：研发基于无线能量传输和控制的舞台灯光斑切割系统。在传统切割成像机构基础上,采用150 kHz的谐振式平板磁芯环形线圈,通过双端电流采样改变H桥驱动逆变电路占空比,实现无线大功率精准控制输出;采用2.4 GHz的环形近场天线传输控制通信信号,通过检测和跳频选择相对占用少的频道进行传输。经过计算、有限元仿真和实际测量等优化,实现切割光斑的无限角度快速旋转运动。该系统已应用于多款电脑摇头灯产品,使用轻巧灵活、抗干扰能力强、可靠性高,能量传输效率>78%,丢包率<0.05%。The spot cutting imaging system is a high-end pattern function moving part of professional stage lighting.In this paper,a new type of cutting light imaging device based on wireless energy transmission and control is developed.Based on the traditional cutting imaging mechanism,a 150 kHz resonant flat core toroidal coil is used.The double-ended current sampling is used to change the duty ratio of the H-bridge driving inverter circuit to realize the wireless high-power precision control output;the 2.4 GHz circular near field antenna is used to transmit and control the communication signal,and the channel with relatively small occupancy is selected through detection and frequency hopping.Through calculation,finite element simulation and actual measurement optimization,the infinite angle fast rotation motion of the cutting spot is realized,which has been applied to various computer moving head light products,which is light and flexible,strong in anti-interference ability,high in reliability,and energy transmission efficiency>78%,packet loss rate<0.5%,the effect is good.

关 键 词：舞台灯具 光斑切割成像 谐振式 无线电能传输 近场环形天线 

分 类 号：TN9[电子电信—信息与通信工程]