基于S5PV210的1080P网络摄像头设计  

Design and implementation of 1080P IP camera based on S5PV210

作　　者：李宇成[1] 黄堂猛[1] 

机构地区：[1]北方工业大学机电工程学院,北京100144

出　　处：《计算机工程与设计》2014年第11期3813-3819,共7页Computer Engineering and Design

摘　　要：为满足安防监控中对视频质量和图像处理的要求,设计一种基于S5PV210处理器平台和Linux嵌入式系统的网络摄像机。介绍软件总体架构和软、硬件功能模块;采用UML语言描述基于Linux3.8的多媒体架构及应用层程序设计;为实现数据流的高速处理,设计一种FIMC驱动与MFC驱动数据交换共享内存的方案,满足高清图像、高帧率压缩处理的要求。前端500万像素的OV5642CMOS摄像头获得视频图像后,经H.264格式压缩,以RTP/RTCP协议进行网络传输,通过上位机软件解码播放。系统测试结果表明,摄像机成像、网络传输和播放速度达到1080p*25帧/秒,系统运行稳定,图像效果清晰,满足安全监控应用要求。Aiming at meeting the video quality and image processing requirements in secure surveillance, an IP camera was de- signed based on the SSPV210 processor platform and the embedded Linux system. The software architecture, the overall hard-ware and software modules were described. The UML language was used to describe the multimedia architecture based on the Linux3.8 and the design of application layer. To achieve high-speed data processing, the shared memory scheme was designed to realize the data exchange between the FIMC driver and the MFC driver, meanwhile to meet requirements of high-definition ima- ges and high frame rate compression processing. Images were obtained from using 500-megapixel CMOS camera of OV5642 and encoded in H. 264 video compression format. The unpack RTP/RTCP protocol was used for the network transmission. Pro- cessed images were decoded and played by the PC software. The design of the system was tested, and the results show that the camera imaging, the network transmission and the playback speed reach 1080p ＊ 25 fbs. The system is stable with clear image quality, satisfying the requirements of security surveillance applications.

关 键 词：S5PV210 OV5642 1080P 网络摄像头 多媒体架构 Linux-3.8 

分 类 号：TP311.52[自动化与计算机技术—计算机软件与理论]