摘要：The liquid filling machine is used in packaging fields such as food, chemistry, and oil industries. In particular, the machines are used to package products in drums after manufacturing products in hazardous chemical factories. Existing filling machine allows the operator to directly inject the product and set the injection capacity only to the standard drum. In this paper, we propose position tracking algorithm with a vision sensor that can track the inlet location of various types of drums. Hough transform detection method is used to search for objects in images from the vision sensor. The proposed algorithm can calculate the position of the injection hole after extracting the feature points so that it is possible to inject the product by automatically moving the injection nozzle. Therefore, it expected that the developed algorithm for the automatic liquid filling machine will give more production and save a lot of manpower for packaging industry.
