Patent US 9,396,641

A system for predicting and warning of impacts includes a sensor located remote from a user and configured to acquire user data regarding motion of the user and object data regarding motion of the object; and a processing circuit configured to predict a potential impact between the user and the object based on the user data and the object data; and control operation of a user-wearable warning device to provide a warning output to the user in advance of a predicted time of the potential impact.