Online monitoring device for feeder

The invention belongs to the technical field of online monitoring, and particularly relates to an online monitoring device for a feeder, and the online monitoring device comprises a sampling module, a sample detection module, an image acquisition module, an image analysis module, a transmission module, a pressure sensing module and a material conveying detection module. The real-time conveying efficiency of the feeding machine can be calculated according to sample data and pressure sensing data, meanwhile, a man-machine interaction interface is arranged, a real-time pressure change curve on a conveying belt of the feeding machine is displayed in the man-machine interaction interface, historical material conveying data of the feeding machine can be inquired according to a time label, and the method is visual, convenient and high in practicability. And personnel are helped to effectively know the material conveying efficiency and the material conveying efficiency change of the feeding machine. 本发明属于在线监测技术领域，具体是