基于PXA255的GPRS圖像傳輸系統(tǒng)設(shè)計

提出了一種基于Intel PXA255 嵌入式微處理器和MC55 無線通訊模塊的圖像采集、壓縮與傳輸?shù)脑O(shè)計方案。在PXA255 的平臺上，通過選擇適合的芯片、無線傳輸模塊并利用MPEG-4 視頻壓縮技術(shù)對圖像進行壓縮后通過GPRS網(wǎng)絡(luò)來實現(xiàn)無線圖像實時傳輸功能，從而實現(xiàn)功耗低、體積小、數(shù)據(jù)傳輸速度快和攜帶方便等特點，特別適用于遠程實時監(jiān)控、工業(yè)控制和智能家居等環(huán)境。
關(guān)鍵詞：處理器; 無線通訊模塊; GPRS; MPEG-4 技術(shù); USB 攝像頭

Abstract：A design scheme of capturing, compressing and transmitting images is proposed, which is based on Intel PXA255 microprocessor andMC55 wireless transmission module. In order to realized the function of wireless image real-time transmission, we choose appropriate chip, wireless transmission module, adopt MPEG-4 video compression technology compress image and make use of GPRS network send it on the PXA255 platform. The system is low-cost, has a small size and fast speed of transmitting data, and is easy to carry, so it is suitable for the situation of remote real-time monitor, industry control field and smarthome.
Key words：processer; wireless communicate module; GPRS; MPEG-4 technology; USB camera