無線多媒體技術應用設計

Design of Wireless Multimedia Technologies and Its Applications

洪碩蔚(Shuo-Wei Hung)

指導教授 ： 陳冠宇

中原大學/工學院/光機電及資電控產業研發碩士專班/碩士(2010年)

https://doi.org/10.6840/cycu201000661

摘要

近年來，結合無線通訊與多媒體技術已成為消費性電子產品的設計趨勢。本文旨在應用無線多媒體技術發展具備錄影及無線影像傳輸功能之低成本攝影機，其中使用多媒體處理器整合硬體元件和周邊，包括攝影機鏡頭、TFT-LCD面板、記憶卡、無線射頻、USB連接埠等，採用FAT32檔案系統及儲存AVI格式影像，除錄影功能之外，同時可擷取影像透過無線網路即時傳至他處進行遠端監控。發展此項產品的關鍵技術有：硬體元件與周邊的整合、影像壓縮與儲存、無線影像傳輸等。在產品軟硬體建置完成之後，本文設計三項實驗以測試其性能，包括：檔案儲存時間、影像傳輸效能及無線傳輸距離。根據實驗結果，本文發展之無線網路攝影機可以滿足客戶的需求規格且適用於建置居家無線監控系統。

關鍵字

影像壓縮 ； 無線多媒體技術 ； 遠端監控 ； 無線影像傳輸

並列摘要

In recent years there has been become a tendency to combine wireless communication with multimedia technologies for designing consumer electronics and electrical products. The purpose of this thesis is to apply wireless multimedia technologies for developing a low cost camera which includes video recording and wireless transmission of images. In this camera, a multimedia processor is used to integrate hardware components and peripherals, such as camera lens, TFT-LCD panel, memory card, wireless RF module, and USB port. The file system used by the wireless camera is FAT32 and video recording files are stored in AVI format. In addition to video recording, the camera is able to capture images and transmits them via wireless networks to other place for real-time remote monitoring. There are some major technologies for developing the camera, including integration of hardware components and peripherals, video compression and storage, and wireless image transmission. After hardware and software for the camera are accomplished, three experiments are designed in this thesis for testing the camera’s performance, including writing runtime of videos, performance of image transmission, and wireless transmission distance. According to the experimental results, the wireless network camera has been developed in this thesis can satisfy the specification of the client’s requirements and be well suited for constructing wireless home-monitoring systems.

並列關鍵字

remote monitoring ； wireless multimedia technology ； video compression ； wireless image transmission

參考文獻

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Specification,