Verifying objects inside packaging box on belt conveyor by weight estimator

The conveyor systems are especially useful applications involving the transportation of packaging box. It is used to transfer materials or packages from one location to another one. Many of industries have a trouble in checking package section because of some of packages without a product inside. They used weight checker or proximity sensor to verify a product inside packages, those sensors have more expensive cost. This paper presents packages verification without sensor while the belt conveyor is moving. The monitoring method for packaging box on belt conveyor is designed by automation concept and DC motor speed control with adaptive compensator. The weight of a product inside packages effect to load torque variable, this variable can be estimate by using observer and adaptive torque compensator. It conduces to verify numbers of complete packages on belt conveyor and increases performance of conveyor system.