采用视频分析的方法实时检测传输带上煤瞬时流量,通过闭环控制方式自动控制斗轮机悬臂的回转速度进行取煤。利用该方法在上海某电厂进行了多个运行班次的效能分析试验,结果表明,与原来的上煤系统相比,上煤流量比较均匀,既缩短了超载时间,又提高了上煤效率。 The method of video analysis was used to detect the instantaneous flow rate of coal on the conveyor belt in real time. The closed loop control method was used to automatically control the rotating speed of the bucket wheel cantilever to take coal. Using this method, a number of power shift tests were carried out in a power station in Shanghai. The results show that compared with the original coal-fired system, the coal flow rate is relatively uniform, which not only shortens the overloading time but also improves the coal efficiency.