嵌入式数据库在基于多核处理器的视频监控中的应用

Application of Embedded Database in Video Surveillance System Based on Multi-core Processors

在嵌入式双核处理器(ARM+DSP)平台之上,提出基于嵌入式数据库的网络视频监控系统架构.通过移植嵌入式数据库FUEL在TMS320DM6446音视频开发平台,利用其在多线程环境下对共享数据的管理,实现了多核处理器平台的音视频编解码对数据访问的一致性;并基于FUEL实现了嵌入式视频监控系统,使得系统在嵌入式多核处理器架构上更好地管理多线程应用程序之间共享的数据,进而可靠、高效地进行音视频的网络传输.

Based on the platform of embedded multi-core processors （ARM＋DSP）, a network video surveillance system which is based on embedded database is introduced. Firstly, embedded database FUEL is ported to TMS320DM6446-an audio/video develop board. Then, the shared database on the multi-core processors can be accessed concurrently with embedded database. Finally,the embedded video surveillance system can access the shared data among multiple threads in application and manage the shared memory between ARM and DSP based on FUEL. Therefore, it can transmit the encode/decode audio and video more reliable and effective.