基于H.265的高清晰度无线图像传输系统设计

摘要

Because of some power transmission corridors spread among towering and steep mountains,which makes overhead powerline inspection much difficult.To detect the online state of power inspection,this paper utilizes HD (High-Definition) image transmission to get the inspection data and send control signals.Through combine camera and wireless signal,the mode of HD image transmission is completed.Via controlling each mode,the results show that HD image transmission has a long transition distance and high speed of image transmission.%由于在无人机电力巡检过程中,由于多数输电走廊中输电线路呈分散式分布,而且部分输电走廊处于崇山峻岭之间,为及时了解现场情况,通过无人机搭载无线高清图像传输对数据进行实时采集,并发送控制命令.本文机载高清盒模块将相机和无线发射模块整合在一起.相机视频采集模块采用支持自动强光抑制、高速自动聚焦等功能的高端机芯;选用H.265硬压缩模块进行视频压缩,快速高效.无线发射模块由信息调制模块、功率放大模块组成,能够完成5 km距离的高质量视频传输和焦距信息传输.