一种嵌入式USB图像采集系统的优化方法  

An Optimization Method of Embedded USB Image Acquisition System

作　　者：王明成 WANG Mingcheng(Rockchip Electronics Co.,Ltd.,Fuzhou,China,350003)

机构地区：[1]瑞芯微电子股份有限公司,福州350003

出　　处：《福建电脑》2021年第12期64-66,共3页Journal of Fujian Computer

摘　　要：针对目前一些嵌入式USB图像采集系统存在的图像采集时延长、软件缓存队列实现复杂、CPU负载高、USB传输效率不够高等问题,本文提出了一种硬件图像缓存管理器和软件控制相结合的嵌入式优化方法及其实现。验证结果表明,本方法有效地改善了采集系统中存在的上述问题,可在对成本控制和实时性有要求的嵌入式USB图像采集系统中推广使用。There are some problems in embedded USB image acquisition system,such as prolonged image acquisition time,complex implementation of software cache queue,high CPU load and low USB transmission efficiency.In order to solve these problems,this paper proposes an embedded optimization method which combines hardware image buffer manager with software control.The actual verification results show that the method can effectively improve the problems existing in the acquisition system,so it can be applied to the embedded USB image acquisition system with the requirements of cost control and real-time.

关 键 词：通用串行总线 图像采集 缓存管理器 嵌入式 

分 类 号：TN911.73[电子电信—通信与信息系统]