视频快速检索技术在矿井人员定位系统中的应用

Application of video fast retrieval technology in mine personnel positioning system

针对开滦集团吕家坨矿井下视频矿灯配套蓝牙信标安装和维护不方便的现状,提出将视频快速检索技术应用到矿井人员定位系统中的技术。通过北斗卫星导航信号搭建局域网时间同步服务器,构建人员井下轨迹信息与矿灯视频文件的关联关系,实现了系统的横向融合。针对视频文件传输不稳定、关键信息无法快速查看等问题,采用智能化方式对视频进行时间压缩,生成低冗余度的新视频,再利用人员定位信息获取所需数据、视频标签处理控制视频播放时间点,实现了海量视频的快速检索,对提升煤矿安全管理智能化水平具有重要意义。

In view of the inconvenient installation and maintenance of Bluetooth beacons for video mine lights in Lvjiatuo Mine of Kailuan Group,the idea of applying video fast retrieval technology to mine personnel positioning system is proposed.The local area network time synchronization server is built through the Beidou satellite navigation signal,and the correlation between the underground trajectory information of the personnel and the video file of the miner's lamp is constructed,and the horizontal fusion of the system is realized.In view of the instability of video file transmission and the inability to quickly view key information,the video is compressed in an intelligent way to generate new video with low redundancy.Then,the personnel positioning information is used to obtain the required data,and the video tag processing is used to control the video playback time point.The rapid retrieval of massive video is realized,which is of great significance to improve the intelligent level of coal mine safety management..