Method and system for monitoring a position of a target on a trailer

A vehicle trailer reverse assisting system and method includes a trailer hitch angle detecting device and a target monitoring control unit. The aim of monitoring control unit processes images captured from the trailer being pulled by a tractor to assist in placing a target on the trailer. The aim of monitoring control unit also monitors the target and provides feedback regarding the proper positioning of the target on the trailer provides the user. An object movement detection program detects the motion of a target by processing the pixels of the receptacle to determine whether a new trailer was connected. Furthermore, a trailer connection monitoring program monitors a modified trailer based on the loss of the trailer coupling angle or the target for a predetermined time period.