为了提高开放式英语学习系统的资源共享能力和数据的实时传输性能,提出基于B/S结构的开放式英语学习系统设计方案.系统设计包括数据库调度程序设计、主窗口及标准对话框设计、基本控件与扩展控件设计、人机交互界面设计等.系统采用多通道串口总线技术进行B/S结构下的开放式英语学习资源传输和资源调度,在CCS 2.20开发平台下进行开放式英语学习资源的多媒体拓扑控制,构建B/S服务器的信令,在嵌入式Open Core内核中进行系统的软件开发,使用UNIX/Linux操作系统建立英语学习系统的可视化界面,通过B/S架构体系设计使得系统满足跨平台移植和兼容性能.系统测试表明,设计的开放式英语学习系统具有较好的交互性能,对英语学习资源的调度和实时传输能力较好,具有较好的稳定性和可靠性.%In order to improve the resource sharing ability and data real-time transmission capability of English open learning system,a design scheme of English open learning system based on B/S structure is proposed. In the system design,da-tabase scheduler design,main window design,standard dialog box design,basic control design,extended control design,man-machine interface design are involved. The multi-channel serial bus technology is used in the system for English open learning resource transmission and scheduling based on B/S architecture. The multimedia topological control of English open learning re-sources is performed under the control of the CCS 2.20 developing platform to construct signaling of B/S server. The software de-velopment of the system is carried in the embedded Open Core kernel. The visual interface of the English learning system is es-tablished with UNIX/Linux operating system. The design of B/S architecture can make the system satisfy the cross-platform trans-plantation and compatibility. The system test result shows that the English open learning system has good interactive perfor-mance,better real-time transmission and scheduling ability of English learning resources,and better stability and reliability.
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