采用C#开发前端监测界面,集中导入教室配置信息,通过VLC插件播放录播设备实时传输流协议(Real Time Streaming Protocol,RTSP)流,利用FFmpeg工具获取设备状态,并以Windows服务方式实现后台实时监测。此系统改变了原有各教室独立记录和...采用C#开发前端监测界面,集中导入教室配置信息,通过VLC插件播放录播设备实时传输流协议(Real Time Streaming Protocol,RTSP)流,利用FFmpeg工具获取设备状态,并以Windows服务方式实现后台实时监测。此系统改变了原有各教室独立记录和监测的方式,实现跨校区、跨楼栋智慧教室录播设备状态集中监测和反馈,解决监测效率低、异常处理滞后、录制时间不准等问题,提升了录播系统维护效率,增强了系统稳定性和可靠性,更好地为课堂教学提供数字化服务。展开更多
A series of experiments are conducted to confirm whether the vectors calculated for an early section of a continuous non-invasive fetal electrocardiogram (fECG) recording can be directly applied to subsequent sectio...A series of experiments are conducted to confirm whether the vectors calculated for an early section of a continuous non-invasive fetal electrocardiogram (fECG) recording can be directly applied to subsequent sections in order to reduce the computation required for real-time monitoring. Our results suggest that it is generally feasible to apply the initial optimal maternal and fetal ECG combination vectors to extract the fECG and maternal ECG in subsequent recorded sections.展开更多
课堂直录播是目前高校教育数字化转型普遍采取的措施之一,但是课堂教学直播对直播质量提出了更严格的要求。文章对直播中教师分享的课件画面偶发断流问题,开发应用软件检测讲台电脑是否实时在线,结合OpenCV轮巡拉取网络摄像头的实时流...课堂直录播是目前高校教育数字化转型普遍采取的措施之一,但是课堂教学直播对直播质量提出了更严格的要求。文章对直播中教师分享的课件画面偶发断流问题,开发应用软件检测讲台电脑是否实时在线,结合OpenCV轮巡拉取网络摄像头的实时流媒体协议(Real Time Streaming Protocol,RTSP)流,并利用多线程开发技术提升监测效率,及时发现存在异常的直播流,便于尽早解决直播问题,提升教学直播的稳定性与可靠性。展开更多
文摘采用C#开发前端监测界面,集中导入教室配置信息,通过VLC插件播放录播设备实时传输流协议(Real Time Streaming Protocol,RTSP)流,利用FFmpeg工具获取设备状态,并以Windows服务方式实现后台实时监测。此系统改变了原有各教室独立记录和监测的方式,实现跨校区、跨楼栋智慧教室录播设备状态集中监测和反馈,解决监测效率低、异常处理滞后、录制时间不准等问题,提升了录播系统维护效率,增强了系统稳定性和可靠性,更好地为课堂教学提供数字化服务。
基金supported by the National Natural Science Foundation of China(Grant No.61271079)
文摘A series of experiments are conducted to confirm whether the vectors calculated for an early section of a continuous non-invasive fetal electrocardiogram (fECG) recording can be directly applied to subsequent sections in order to reduce the computation required for real-time monitoring. Our results suggest that it is generally feasible to apply the initial optimal maternal and fetal ECG combination vectors to extract the fECG and maternal ECG in subsequent recorded sections.
文摘课堂直录播是目前高校教育数字化转型普遍采取的措施之一,但是课堂教学直播对直播质量提出了更严格的要求。文章对直播中教师分享的课件画面偶发断流问题,开发应用软件检测讲台电脑是否实时在线,结合OpenCV轮巡拉取网络摄像头的实时流媒体协议(Real Time Streaming Protocol,RTSP)流,并利用多线程开发技术提升监测效率,及时发现存在异常的直播流,便于尽早解决直播问题,提升教学直播的稳定性与可靠性。