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題 名 | 無線影像傳送之監視系統=The Monitoring System Using Wireless Picture Transfer Technique |
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作 者 | 席家年; 邱永椿; 陳江陽; 黃國榮; | 書刊名 | 科技學刊. 科技類 |
卷 期 | 13:1 2004.01[民93.01] |
頁 次 | 頁25-32 |
分類號 | 448.94 |
關鍵詞 | 無線影像監視系統; 德州儀器C6711 DSP晶片; 使用快閃記憶體儲存資料; Wireless picture monitoring system; Texas instruments's C6711 DSP chip; Data storage using flash memory; |
語 文 | 中文(Chinese) |
中文摘要 | 傳統的影像監視系統使用類比錄影帶記錄畫面,因為錄影帶的重複使用,使得記錄的畫面顯得模糊。為了改善上述的缺失並避免複雜的配線,我們試以數位化無線方式傳送影像畫面,並以數位方式記錄畫面於快閃記體。 為了以數化無線方式傳送影畫面,我們使用美商德州儀器C6711DSP晶片為基礎的影像發展模組配合TRF6900無線模組,將影像數位化並進行壓縮後以無線方式傳送至監視錄影設備端,並於監視錄影設備端再進行解壓縮顯示。由於C6711DSP晶片具有優越的運算能力,可即時壓縮及解壓縮影像畫面,大富降低影像畫面的資料量,使得無線傳送數位畫面的構想可行。 由於快閃記憶體的容量持續上升、價格愈來愈接近硬式磁碟機、體積小、還有抗震等點,非常適用於移動性記錄設備。因此我們嘗試以快閃記憶體取代硬式磁碟機,用來記錄壓縮之影像畫面,並同步記錄其對應時間。此外本系統除了監視錄影外,並提供簡易介面讓使用者能快速便利地查看所記錄的影像畫面及時間。 |
英文摘要 | The traditional image based monitoring system records pictures by using tapes, its repeated makes pictures poor. In order to overcome the situation and avoid the complicated wiring, we try to transfer the digital pictures wirelessly and record the pictures in the flash memory. To transfer the digital pictures wirelessly, the Texas Instrument’s C6711 DSP chip based Image Developer Kit (IDK) and TRF6900 wireless transmitter/receiver module were used. The C6711 DSP chip with advanced computation ability can compress and decompress digital pictures in real-time to greatly reduce the video data, and makes the digital picture wireless transfer feasible. Thanks to ever-growing capacity of flash memory with cost closer to that of hard disk and advantages of tiny size and shock-proof features for portable recording, we decide to replace the hard disk with flash memory to record the compressed pictures and time through a well-designed user interface easily. |
本系統中英文摘要資訊取自各篇刊載內容。