針對嵌入式機器視覺系統(tǒng)向獨立化、智能化發(fā)展的要求,介紹了一種嵌入式視覺系統(tǒng)--智能相機。基于對智能相機體系結(jié)構(gòu)、組成模塊和圖像采集、傳輸和處理技術(shù)的分析,對國內(nèi)外的幾款智能相機進行比較。綜合技術(shù)發(fā)展現(xiàn)狀,提出基于FPGA+DSP模式的硬件平臺,并提出智能相機的發(fā)展方向。分析結(jié)果表明,該系統(tǒng)設(shè)計可以實現(xiàn)脫離PC運行,完成圖像獲取與分析,并作出相應(yīng)輸出。
Abstract:
This paper introduced an embedded vision system-intelligent camera ,which was for embedded machine vision systems to an independent and intelligent development requirements. Intelligent camera architecture, component modules and image acquisition, transmission and processing technology were analyzed. After comparing integrated technology development of several intelligent cameras at home and abroad, the paper proposed the hardware platform based on FPGA+DSP models and made clear direction of development of intelligent cameras. On the analysis of the design, the results indicate that the system can run from the PC independently to complete the image acquisition and analysis and give a corresponding output.
針對目前現(xiàn)有的無線通信鐵鞋系統(tǒng)在使用過程中出現(xiàn)的問題,提出一種新型的智能鐵鞋設(shè)計方案。該系統(tǒng)的拓撲結(jié)構(gòu)由協(xié)調(diào)器和采集器節(jié)點構(gòu)成,利用ZigBee無線傳感器網(wǎng)絡(luò)實現(xiàn)節(jié)點間的互聯(lián)組網(wǎng),采用CC2531作為協(xié)調(diào)器節(jié)點的核心控制芯片,CC2530作為采集器的核心控制芯片。此外,采用CC2591作為末端放大器,以提高發(fā)射功率,進一步增大傳輸距離(由傳統(tǒng)的75 m提高到1 km以上)。最后,利用VC++和SQL Server 2005實現(xiàn)了控制室鐵鞋檢測控制系統(tǒng)上位機的設(shè)計。實踐表明,該系統(tǒng)可靠性高、傳輸距離遠,能滿足現(xiàn)場需求。