机车车载视频数据自动归集技术研究及应用  

Research and Application of Automatic Collection Technology of Locomotive Onboard Video Data

作　　者：慕元鹏 MU Yuanpeng(Beijing Zongheng Electromechanical Technology Co.,Ltd.,Beijing 100081,China)

机构地区：[1]北京纵横机电科技有限公司,北京100081

出　　处：《控制与信息技术》2020年第5期73-78,共6页CONTROL AND INFORMATION TECHNOLOGY

摘　　要：结合国内当前机车车载视频监控系统的应用情况,针对其视频数据编码格式不统一、视频不完整及大容量视频数据无线传输困难3个关键问题,文章提出了一种高效的视频数据自动归集技术方案。该方案使用车载图形处理单元(GPU)对多种不同格式视频数据进行批量编码转换,同时自动进行视频完整性检查;修正视频数据系统参考时钟(SCR)和显示时钟标签(PTS),实现视频数据的预处理和结构化;并通过大容量无线数据传输链路将转码后的视频数据传输至地面服务器。基于该方案开发的装置已成功应用在国内部分铁路局的机车上,在提升机务信息化视频综合联动分析能力和自动化管理水平方面进行了有效的实践。According to the application situation of current locomotive onboard video surveillance system in China,an efficient video data automatic collection scheme was proposed to solve three key problems of video data including inconsistent encoding format,incomplete video and high-capacity video data transmission.The scheme uses an onboard GPU to perform batch code conversion on a plurality of different formats of video data,automatically perform video integrity check,correct video data SCR and PTS clocks,and implement preprocessing and structuration of video data.Transcoded video data is transmitted to the ground server through a large-capacity wireless data transmission link.The device developed based on this scheme has been successfully loaded and tested in several railway bureaus in China,and has carried out effective practice in improving locomotive informatization,video comprehensive correlation analysis capability and automation management level.

关 键 词：视频编码转换 完整性检测 无线传输 5G技术 数据自动归集 

分 类 号：U298[交通运输工程—交通运输规划与管理]