150KW发射机三维互动教学系统的设计与实现

发布时间：2018-01-28 20:51

本文关键词： 虚拟现实技术 3DMAX Unity3D 多媒体压缩 150KW发射机　出处：《河北科技大学》2017年硕士论文　论文类型：学位论文

【摘要】：伴随着计算机网络技术和计算机科技的快速发展,一种新型的教学方式也随之产生,成功地打破了时间和地域的限制。发射机作为发射台的核心传播设备,在广播发送中起着极其重要的作用。目前维护发射机的人员,获取发射机知识主要靠师父带徒弟,职工集体参加学习,平时很少能够拆卸发射机的元器件,了解内部的构造。当设备发生故障时,不知怎么处理。随着虚拟现实技术的发展越来越迅速,运用它所具有的交互性、沉浸感和构想性等特点,将改善以上存在的教学弊端,让职工随时可以学习发射机理论知识,通过视频和三维动画了解内部结构,大大提高职工的学习兴趣,有利于职工从知识学习到动手仿真学习的跨越。本文研究了150KW发射机的教学内容和三维动画的设计及互动。从整篇文章的结构来讲,首先介绍了现在科学界非常流行的VR技术在教学系统中的应用;通过充分调研和比较目前虚拟仿真教学现状的基础上,确定了本系统三维互动实现的工具,系统采用3DMAX软件搭建了发射机的整体3D模型和部分元件的模型,用Unity3D引擎实现三维动画的网络互动;为了解决带宽问题,对不同的文件均选择最佳的压缩方法。由于本系统中涉及大量元器件的图片、视频、三维动画等文件,尤其是三维动画,数据文件大,传输量大,传输速度受带宽的影响也较大。为了减少因文件太大而对传输速度造成影响,导致难以阅读的困扰,分别对不同格式的文件数据进行了压缩,缩小文件的大小。对于元器件的平面图展示,统一使用JPEG格式,并实现了其放大和缩小展示;对于电路图的阅读,统一使用PDF格式展示;对于元器件的组装和拆卸配置了3D动画演示,为了减少三维动画文件的大小,使之利于网络传输,采用了流媒体传输方式,大大地增加了传输速度,而图像质量不受影响。根据发射机学习内容将该系统主要分为入门篇、原理篇、维护篇、故障篇、元件篇、图纸资料、四会篇和论坛八个部分。学习者可以按照常规的目录式结构阅读各篇章的详细内容,结合图片、图纸、三维动画的展示来更具体的了解发射机,学习发射机的使用和维护。最终使软件设计具有互动性和实用性,支持异地学习、交流和资源共享。目前,该系统已经成功推广运用到了无线广播电台的各台站中,为各台站技术人员的学习和培训提供了方便,达到了设计系统的预期目标。
[Abstract]:With the rapid development of computer network technology and computer technology, a new teaching method has come into being, which has successfully broken the limitation of time and region. Transmitter is the core communication equipment of transmitter. It plays an extremely important role in broadcasting and transmitting. At present, the personnel who maintain the transmitter mainly rely on master and his disciples to acquire knowledge of the transmitter. The staff and workers take part in the study collectively, and rarely can they remove the transmitter components at ordinary times. Understand the internal structure. When the equipment fails, I do not know how to deal with it. With the rapid development of virtual reality technology, the use of its interactive, immersion and conceptualization characteristics. Will improve the above existing teaching defects, so that staff can learn transmitter theory knowledge at any time, through video and three-dimensional animation to understand the internal structure, greatly improve the learning interest of the staff. This paper studies the teaching content of 150KW transmitter and the design and interaction of 3D animation. Firstly, the application of VR technology, which is very popular in science, in teaching system is introduced. Based on the full investigation and comparison of the present virtual simulation teaching situation, this paper determines the tools for realizing the three-dimensional interaction of the system. The whole 3D model of transmitter and the model of some components are built by using 3D Max software, and the network interaction of 3D animation is realized by using Unity3D engine. In order to solve the bandwidth problem, we choose the best compression method for different files. Because this system involves a large number of images, video, 3D animation and other files, especially 3D animation, the data file is large. In order to reduce the impact on the transmission speed caused by too large files and lead to difficult to read, the file data in different formats are compressed separately in order to reduce the impact on the transmission speed caused by the large amount of transmission, and the transmission speed is also greatly affected by the bandwidth. Reduce the size of the file. For the components of the plane plan display, the unified use of JPEG format, and achieve its magnification and shrink display; For circuit diagram reading, the unified use of PDF format display; For the assembly and disassembly of components, 3D animation demonstration is configured. In order to reduce the size of 3D animation file and make it benefit to network transmission, streaming media transmission mode is adopted, which greatly increases the transmission speed. The image quality is not affected. According to the transmitter learning content, the system is mainly divided into introduction, principle, maintenance, fault, component, drawing materials. Students can read the detailed contents of each chapter according to the normal directory structure, combining pictures, drawings and 3D animation to understand the transmitter more concretely. Learning the use and maintenance of transmitters. Ultimately make the software design interactive and practical, support remote learning, communication and resource sharing. At present. The system has been successfully applied to the stations of the radio station, which provides convenience for the study and training of the technical personnel of each station, and achieves the expected goal of the design system.
【学位授予单位】：河北科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN837-4;G434;TP311.52

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