基于Hi3519v101的无人机双光视频采集编码系统设计

Design of double video acquisition and encoding system for UAV based on Hi3519v101

针对无人机视频图像传输需求的不断升级,提出一种基于Hi3519v101处理器的双光视频采集编码系统设计,结合系统框架,给出软硬件设计结构。针对双路视频采集编码、数据平滑处理、低带宽链路通信及流媒体传输显示等应用需求,通过P帧帧内刷新、ROI编码、LIVE555工程及多链路传输技术,详细阐述了相关功能实现及问题解决方案。测试结果表明,系统工作稳定,可满足视频图像传输的诸多要求,对提升无人机作业效率,具有广泛的应用前景。

In view of the continuous upgrading of the Unmanned Aerial Vehicle (UAV) video transmission requirements, a design of double video acquisition and encoding system based on Hi3519v101 processor is proposed. According to the system framework, the hardware and software design structure was introduced. For the application requirements of dual-channel video acquisition and encoding, smooth data processing, low-bandwidth link communication and streaming media transmission display, the related issues were resolved through P-frame intra refreshment, ROI coding, LIVE555 and multi-link transmission technology. The test results showed that the system worked stably, many requirements for video transmission were implemented, UAV operation efficiency was improved. The system has broad application prospects.