基于嵌入式的智能家居之视频监控系统设计

Design of Video Surveillance System in Smart Home Based on Embedded

摘要:

针对视频监控系统在智能家居中对异常情况处理不够智能、响应速度较慢的问题,提出嵌入式视频监控端的方案；首先搭建嵌入式开发板的组成模块,选择摄像头并配置红外线反射模块；其次考虑到智能家居视频监控的特点,提出适合嵌入式环境的改进三帧差分算法,对出现的目标物体进行轮廓提取和阴影消除；最后根据性能指标对改进算法验证,同时通过GPRS技术把处理好的图像发送给家居主人；实验表明该系统能实时对不明物体做出智能判断,运行稳定,实现了智能家居安全防范目的。

Abstract:

For lack of enough intelligent and slow response about video monitoring system in smart home furnishing, proposed a plan of video surveillance terminal based on embedded platform when abnormal situation occurred. The papers firstly built component modules in embedded development board, and choose the camera which configured infrared reflection module. Secondly, considering the characteristics of intelligent home furnishing video monitoring, an improved algorithm of three frame difference was put forward; it can extract contours and eliminate shadow to target object. Lastly the improved algorithm was checked by performance index, and sent the processed image to master by GPRS technology. Experiments showed that system can make intelligent judgment to unknown object timely and it was stable, realized the security purpose in smart home.