基于AR9311下MPP的网络摄像头设计  

Design of Network Camera for MPP Based on AR9311

作　　者：张怡 鲍爱达[1] 郭鑫 刘昕沂 ZHANG Yi;BAO Aida;GUO Xin;LIU Xinyi(North University of China,National Key Laboratory of Dynamic Testing Technology;School of Information and Communication Engineering,North University of China)

机构地区：[1]中北大学,动态测试技术国家重点实验室 [2]中北大学信息与通信工程学院

出　　处：《仪表技术与传感器》2025年第3期89-92,99,共5页Instrument Technique and Sensor

基　　金：国家自然科学基金(62204232);山西省基础研究计划(202103021244198)。

摘　　要：为满足监控领域摄像头驱动替换便捷性和快速开发的需求,基于AR9311芯心在Linux系统上设计了一种网络摄像头。该系统采用媒体处理软件平台(MPP)进行设计,摄像头驱动以应用层驱动库的方式进行调用,应用软件通过MPP提供的接口快速完成相关功能开发。文中以GC_2053摄像头为例,介绍了其在MPP架构下应用层驱动的设计,重点分析了如何通过VI视频采集模块获取视频图像,通过VPSS视频处理子系统模块处理图像,通过VENC编码模块进行编码输出码流。通过RTSP协议进行网络传输,通过解码软件VLC media player进行播放。经过测试,视频传输稳定,图像显示清晰,能够满足监控领域的要求。To meet the needs of convenient replacement and rapid development of camera drivers in the monitoring field,a network camera was designed based on the AR9311 platform and Linux embedded system.The system was designed using the media processing software platform(MPP),and the camera driver was called in the form of an application layer driver library.The application software quickly completed the development of related functions through the interface provided by MPP.Taking the GC_2053 camera as an example,this article introduced its application layer driven design under the MPP architecture,with a focus on analyzing how to obtain video images through the VI video acquisition module,process images through the VPSS video processing subsystem module,and encode and output bitstreams through the VENC encoding module.Finally,network transmission was carried out through the RTSP protocol,and playback was performed through the decoding software VLC media player.After testing,the transmission speed is stable,the image display is clear,thus meeting the requirements of the monitoring field.

关 键 词：LINUX MPP 应用层驱动 GC_2053 AR9311 

分 类 号：TP368[自动化与计算机技术—计算机系统结构] TP399[自动化与计算机技术—计算机科学与技术]