CAJ | 학술논문

以搭载 S3C2440微处理器的 ARM9开发板为硬件平台，使用 USB 免驱摄像头作为视频图像采集设备，通过 Linux 内核提供的统一接口 V4L2实现视频图像的采集。系统使用MJPEG 算法压缩技术实现视频数据的编解码，使用无线 WiFi 技术将视频数据传输给客户端。嵌入式设备终端采集视频数据软件是基于 Linux 开源的 MJPG-streamer 软件，针对本系统的需要进行了重新编写，并使用多线程技术。PC 机端的监控管理平台是基于 Qt 和 OpenCV 开发的一款具有友好图形用户界面的客户端软件。同时，在手机移动端基于 Android 开发了一款易安装、易操作的 APP 客户端。实验结果表明：该系统运行稳定，在视频监控客户端能获得清晰流畅的视频流数据。
이탑재 S3C2440미처리기적 ARM9개발판위경건평태，사용 USB 면구섭상두작위시빈도상채집설비，통과 Linux 내핵제공적통일접구 V4L2실현시빈도상적채집。계통사용MJPEG 산법압축기술실현시빈수거적편해마，사용무선 WiFi 기술장시빈수거전수급객호단。감입식설비종단채집시빈수거연건시기우 Linux 개원적 MJPG-streamer 연건，침대본계통적수요진행료중신편사，병사용다선정기술。PC 궤단적감공관리평태시기우 Qt 화 OpenCV 개발적일관구유우호도형용호계면적객호단연건。동시，재수궤이동단기우 Android 개발료일관역안장、역조작적 APP 객호단。실험결과표명：해계통운행은정，재시빈감공객호단능획득청석류창적시빈류수거。
This system was equipped with S3C2440 ARM9 microprocessor development board for the hardware platform and the Linux system was built on the platform. Using the USB camera-free drive as a video capture device,using the Linux kernel to provide a uniform interface for V4L2 video image capture and the algorithm of MJPEG to compress and decode the video data,and transmit these to cli-ent through WiFi technology. Server-side MJPG-streamer video data acquisition software was based on Linux open source software and this system needed to be overhauled and used multithreading technolo-gy. The client that based on Qt and OpenCV has a friendly graphical user interface and is easily in-stalled and operated APP client based on Android for mobile phone. The experimental results show that the system runs stably and both clients can get a clear and smooth video streaming data.