Patent attributes
An interface system extends a prior-art multi-pump fuel delivery station so that authorization to activate the fuel delivery pump can be obtained from a remote authorization service over a long-range wireless communication link such as a cellular telephone connection or a satellite connection; and delivered to the interface system over a different, short-range wireless communication link such as a Bluetooth® connection or a WiFi connection. After receiving the authorization, a signal to activate a fuel delivery pump is transmitted to a physically separate pump control module over an electrical power line by being coupled onto the power line by a first power line interface, and coupled back off of the power line by a second power line interface. The signal causes the physically separate pump to start or stop operation.