双缓冲技术在船舶监控图形界面开发中的应用  

Application of Double Buffering Technology to Graphic Interface of Ship Monitoring System

作　　者：李宽 张丽芸 陈玉冲 LI Kuan;ZHANG Liyun;CHEN Yuchong(Warship Automatic System Division,Shanghai Ship and Shipping Research Institute,Shanghai 200135,China;Design Institute of Bohai-Shipyard Group Co.,Ltd.,Huludao 125004,China)

机构地区：[1]上海船舶运输科学研究所舰船自动化系统事业部,上海200135 [2]渤海造船厂集团设计院,辽宁葫芦岛125004

出　　处：《上海船舶运输科学研究所学报》2018年第4期26-29,38,共5页Journal of Shanghai Ship and Shipping Research Institute

摘　　要：通过采用VxWorks操作系统中的可剪裁的多媒体组件WindML进行图形界面设计,在降低开发成本的同时,得到丰富多彩的图形界面。但是,在开发嵌入式操作系统图形界面过程中,进行高频率或大区域图像刷新时会遇到画面闪烁、抖动的问题。结合WindML在船舶监控系统图形界面开发中的应用,利用双缓冲技术解决该问题,并将其应用于实际工程开发中,取得良好的效果。The advance of ship monitoring system requires ever-growing real-time performance and reliability.The embedded operating system VxWorks is usually used for the development of such system,especially the WindML module.But for graphic interface development,special attention has to be paid to prevent images from jitter/blink when high-frequency or large-area refreshing occurred.This paper introduces double buffer design into the graphic interface of the ship monitoring system to address the problem and achieves good results.

关 键 词：图形界面 VXWORKS嵌入式操作系统 WINDML 图像刷新 双缓冲技术 

分 类 号：U665.26[交通运输工程—船舶及航道工程]