Communicating Towed unit (Trailer) Vehicle Identification Number(s) (VIN) to the Powered Unit

Usually the lifetime of a trailer is much longer than tractors; tractors must work with a variety types and ages of trailers over the course of their use. In many scenarios (e.g., roadside inspection, border crossing, smart parking, connected vehicle initiative, etc.), it is necessary to identify trailer(s)' VIN(s) and know their sequences attached to the powered unit. An automated trailer VIN identification and sequencing system is proposed here, with the capability of identifying trailers' VINs and sorting their sequence without drivers/operators involved. The system is extremely low-cost and easily deployable in large scale. Advanced version of the system can interface with trailer sensors to improve the safety and productivity of the fleets. The proposed system has been tested for feasibility on a real tractor and trailer combination vehicle in Phase I. In Phase II, the system will be further refined and improved for its functions and tested in vehicle operational environment and more complicated scenarios and tractor-trailer configurations.