US Patent 8006559 Wayside rolling stock inspection

Inspection of rolling stock (e.g., rail vehicles) traveling along a set of rails is performed using devices that are placed in a housing that is attached to the set of rails. The housing conforms to standard width, height, and load bearing requirements for a railroad tie. As such, the housing can be readily installed and allows for the continued use of standard railroad maintenance equipment. One or more sensing devices are attached to the housing and acquire evaluation data on component(s) of the rail vehicle, such as the wheels. A computing device can evaluate a condition of the component(s) using the evaluation data.