摘要
提出一种改进的点光源跟踪方案,采用MSP430F149作为主控制器,分光源发送端和光源跟踪端两部分研究。发送端发送1KHz频率的光,跟踪端用光敏三极管检测点光源信号,对其进行1KHz的带通滤波和A/D转换,然后分析点光源的移动方向,并控制舵机跟踪点光源。软件部分用基本控制和中心控制两种算法互相补充、交叉控制,提升了系统性能。测试结果表明,系统跟踪快速且准确、运行稳定。
This paper presents an improved light source tracking scheme, which consists of two parts-Light Transmitter （LT） and Light Receiver （LR）, and adopts MSP430F149 MCU as its main controller. LT sends out light of 1 KHz, LR detects the signal of source light by using phototransistor, gets the signal to go through analog band-pass filter and A/ D converter; then analyzes the move direction of light source and controls the servo to track it. Two control algorithms are used complementally to improve the system＇ s performance in part of software. Tested results show that the system is stable and can track the LT rapidly and accurately.
出处
《电子设计工程》
2014年第11期35-38,共4页
Electronic Design Engineering
基金
陕西普通本科高等学校重点教学改革研究项目(11BZ56)
陕西省教育厅自然科学研究专项基金项目(2013JK1087)
第二批国家级大学生创新创业训练计划项目(教高司函[2013]8号)
