基于云平台的图像发送与播报终端的研究

发布时间：2018-01-21 16:58

本文关键词： 移动终端图像共享云平台数据库　出处：《吉林大学》2017年硕士论文　论文类型：学位论文

【摘要】：在传统的公司会议,课堂教学中都是演讲者、会议发言人、授课教师从上向下的信息和知识的传递,听众不能及时的将自己的图像文字信息直观的分享给其他人,导致传递过程单一的问题。本课题针对这一缺陷进行研究,利用近年兴起的移动终端(Android,iOS)以及嵌入式硬件终端、云平台实现了多终端组网分享的功能。实现了用户登录,图像分享,历史查看,图像保存,图像轮播的功能。本系统重点研究了图像的压缩、http协议的上传和下载、UI设计、服务器数据库设计、Android系统的定制、多线程并发优化。完成在移动终端的双系统(Android,i OS)的机型适配,硬件终端连接投影仪以及云平台数据库的三模块图像共享系统。可以应用在现代化会议、教学之中。本系统的创新之处在于使用近年新兴起的移动手机终端、云平台,从而可以通过硬件和投影仪相连接,实现图像的分享。相比于市场上同类信息共享产品如小米、华为盒子、苹果盒子、安卓电视等设备,本系统具有多终端组网分享的功能,且能查看历史图像,历史图像保存在云端数据库,不易丢失、易维护的特点,而且成本低,可应用在Android、iOS平台,在现代化教学和会议上有着广泛的应用。系统的硬件采用三星公司的Exynos4412芯片作为硬件核心处理器,系统使用POP封装,芯片内含1GB内存。电源芯片S5M8767的输入电压范围是3.5v~5.5v。硬件系统通过高清晰度多媒体接口HDMI(High Definition Multimedia Interface)与投影仪相连接,通过外接WIFI模块与路由器进行通信,从而访问云端数据库进行图像访问。系统的主要研究内容是移动终端(Android,iOS)的图像上传的应用设计和机型适配、云端数据库设计、Android系统的定制、图像的并发上传速度优化等内容。通过对Android系统的定制能使系统的操作更加流畅,更能体现系统的针对性和专一性。测试结果表明,不同大小的图像上传速度不同,通过对不同大小的图片进行不同的压缩算法进行压缩,能使图像的上传速度控制在5s以内,同时保证清晰。在查看历史图像的时候,对图像进行沙盒/SD卡缓存、内存缓存能有效的提升图像的查看加载速度,增加用户体验。
[Abstract]:In the traditional company meeting, the classroom teaching is all the speaker, the conference speaker, the teaching teacher from the top down the information and the knowledge transmission. The audience can not share their own image text information directly to others, which leads to a single problem of transmission process. Using the mobile terminal Android OS) and embedded hardware terminal, the cloud platform realizes the function of multi-terminal networking and sharing, and realizes user login, image sharing and history viewing. This system focuses on the upload and download UI design of the image compression http protocol and the design of the server database and the customization of the Android system. Multithreading concurrency optimization. Complete the adaptation of the Android OS on the mobile terminal's dual systems. The hardware terminal connects the projector and the cloud platform database three module image sharing system. Can be applied in the modernization conference, the teaching. The innovation of this system lies in the use of the newly emerging mobile phone terminal in recent years. Cloud platform, so that the hardware and projector connected to achieve image sharing, compared with similar information sharing products in the market such as Xiaomi, Huawei box, Apple box, Android TV and other devices. The system has the function of multi-terminal networking and sharing, and can view the historical image, which is stored in the cloud database, easy to lose, easy to maintain, and low cost, can be used in Android. IOS platform is widely used in modern teaching and conference. The hardware of the system uses Samsung Exynos4412 chip as the core processor and the system uses POP encapsulation. The input voltage range of the power chip S5M8767 is 3.5 v / 5.5v. the hardware system uses HDMI (HDMI) interface with high definition multimedia interface. The High Definition Multimedia Interface is connected to the projector. Through the external WIFI module and the router to communicate, so as to access the cloud database for image access. The main research content of the system is the mobile terminal. IOS) image upload application design and model adaptation, cloud database design and Android system customization. Image upload speed optimization and other content. Through the customization of the Android system can make the system more smooth, more reflect the pertinence and specificity of the system. The test results show that. Different size of the image upload speed is different, through the different size of the image compression algorithm for different compression, the image upload speed can be controlled in less than 5 seconds. At the same time, ensure clarity. When viewing historical images, the image is cached by sandboxie / SD card. Memory cache can effectively improve the speed of image viewing and loading, and increase the user experience.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP391.41;TP393.09

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