基于嵌入式DSP的光电平台图像自动调焦控制系统设计  

Image auto-focus control system's design for optical-electrical table based on embedded DSP

作　　者：张玉良[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,长春130033

出　　处：《国外电子测量技术》2014年第7期64-66,72,共4页Foreign Electronic Measurement Technology

基　　金：中国科学院三期创新工程和长春光机所所内创新工程(Y10532B110)项目

摘　　要：设计了基于TMS320F2812DSP和EP1C12Q240C8的光电平台图像自动调焦控制系统。给出了图像自动调焦控制系统的总体方案和硬件结构设计,该系统以DSP为控制运算核心,由FPGA负责总线仲裁、地址译码和PWM驱动设计,设计了以ST16C654四路串口芯片为核心的串行接口电路。同时给出了系统的软件流程和控制模型。设计的光电平台图像自动调焦控制系统在多个设备上得到了应用和验证,结果表明系统设计良好,改善了光电平台的图像自动调焦精度。The paper designed a kind of image auto-focus control system based on TMS320F2812DSP and EP1C12Q240C8.In the paper,the author designed the whole project and the hardware structure of image auto-focus control system.In the control system,DSP is the calculating kernel;FPGA takes charge of the bus arbitration,the address coding and the PWM driver＇s design.The paper has designed the interface circuit in series based on ST16C654,and given out the control system＇s model and the software＇s flow at the same time.The image auto-focus control system in the paper has been used in many kinds of equipment.By compared with the traditional auto-focus control method,we find that the auto-focus precision has been greatly improved.

关 键 词：光电平台 DSP2812 自动调焦 

分 类 号：TP202[自动化与计算机技术—检测技术与自动化装置] TN820[自动化与计算机技术—控制科学与工程]