某高校校园公共广播系统的设计.doc

毕 业 设 计 [论 文] 题 目： 某高校校园公共广播系统的设计 学 院： 电气与信息工程学院 专 业： 自动化 姓 名： 李俊科 学 号： 092409121 指导老师： 王羲 完成时间： 2013年5月  摘 要 校园广播是近年来在大中学校园兴起的新型传播媒介。校园广播以其受众群体的特殊性、广播节目的针对性为特点，近年来得到了飞速发展，特别是在丰富校园生活、普及教育知识、加强沟通联系上，起到了重要的作用。 随着教育信息化进程的加快和校校通工程的全面建设，校园广播今后将向“数字化、网络化、智能化”方向发展，最终与校园多媒体、校园网“多网合一”。从目前校园信息化建设情况来看，大多学校都已拥有或在建基于同轴网络的交互式闭路双控系统和基于超五类数字局域网构架的计算机校园网络系统。前者带宽为1-1000MHz，后者带宽为1-100MHz，显然前者有着明显的带宽优势，且随着CabModem的技术日趋成熟，将兼容后者的全部功能。 在设计过程中，主要通过查阅有关文献资料，学习广播音响技术方面的知识，并且向老师请教学习，与同学交流讨论，以增加自己的知识层面，同时利用丰富的网络信息资源，多种方法相结合使用，来完成校园广播系统的设备选型、安装、配接以及调试等任务。 关键词：校园广播，系统，扬声设备，传输 Abstract Campus radio rises as a new media in the secondary school in recent years. With its audience of the particularity of the pertinence, radio program for characteristics, campus broadcast obtained the rapid development in recent years, especially it plays an important role in rich campus life, popularization education knowledge, strengthen the communication link. As speeding up of education information advancement and the building of the all-round construction of general project officer to officer, the campus broadcast will become digital, network, intelligent in future, finally it will become one with campus multimedia, campus network. As the situation of the campus information construction, most schools already own or being the interactive network based on coaxial closed-circuit double control system and based on super five kinds of digital LAN architecture of the computer campus network system. The former bandwidth for 1-1000MHz, the latter bandwidth for 1-100MHz, obviously the former has obvious advantages, and with the bandwidth of the CabModem technology matures, it will be compatible with the latter fully functional. In the process of the design, mainly through consulting relevant literature, learning radio knowledge of sound technical, and ask the