OVERHEAD TRANSPORT SYSTEM

An overhead transport system is provided capable of absorbing abnormal vibration and determining a source of the abnormal vibration. The overhead transport system in accordance with various embodiments of the present disclosure includes a processor, an overhead rail, a plurality of hangers that support the overhead rail, a vibration meter measuring vibration from the overhead rail, and a damper included in each of the hangers. The processor is configured to change a property of the damper in response to a determination that the measured vibration by the vibration meter is indicative of an abnormal vibration.