Abstract:
A calibration device for the calibration of a flow meter is provided. The calibration device comprises a piston. The calibration device also has a calibration volume, and the piston is located in the calibration volume. The calibration device also has a first valve. The first valve is positioned downstream of the calibration volume. The calibration device also has a sensor, and the sensor is configured to provide an indication of the fluid volume in the calibration volume. The calibration device also has at least one processor and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the calibration device to open and close the first valve.
Abstract:
A fuel analyzer for a fuel dispensing environment is provided including an ultrasonic transmitter configured to transmit an ultrasonic signal through a volume of fuel, an ultrasonic receiver configured to receive the ultrasonic signal, and processing circuitry. The processing circuitry is configured to receive an indication of transmission of the ultrasonic signal from the ultrasonic transmitter, receive an indication of receipt of the ultrasonic signal from the ultrasonic receiver, determine a time of flight of the ultrasonic signal, and determine a fuel purity based on the time of flight of the ultrasonic signal.
Abstract:
A fuel dispenser comprises fuel flow piping defining a flow path from a source of fuel toward a fueling nozzle. A plurality of fuel handling components are disposed along the fuel flow piping. Control electronics are in operative communication with the fluid handling components. The fuel dispenser includes network circuitry operative to create a wireless peer to peer network with an adjacent vehicle. After creation of such network, the control electronics receive transaction information from the vehicle in electronic form via the network circuitry, and cause at least one function of the fuel dispenser to be controlled for a transaction based on the transaction information.
Abstract:
Systems and methods for completely filling a storage vessel with a fuel gas. One method includes flowing the fuel gas along a fluid conduit in fluid communication with the storage vessel and actuating a valve disposed along the fluid conduit to provide a predetermined difference between the pressure of the fuel gas upstream of the valve and the pressure of the fuel gas downstream of the control valve. The predetermined difference is selected such that the temperature of the fuel gas is reduced to a predetermined temperature after passing through the valve. The method further includes dispensing the fuel gas into the storage vessel at a first mass flow rate.
Abstract:
A method of delivering a selected fuel product having a selected octane level to an operator from a fuel dispenser including a blend manifold, a fuel nozzle, and a fuel hose extending therebetween, including the steps of determining a first volume of a first fuel that is retained in the fuel hose upon completion of a first fueling event, determining a first octane level of the first volume of the first fuel, determining a second volume of a second fuel having a second octane level, and delivering the first fuel volume and the second fuel volume to the operator during a second fueling event, wherein a total volume of fuel equaling the first volume of the first fuel and the second volume of the second fuel has a total octane level that falls within a predetermined limit of the selected octane level of the selected fuel product.
Abstract:
A system and method of measuring volumetric flow through a meter. One step of the method involves providing a flow meter connected to a duct having fluid flowing therethrough. A memory having at least two Roshko/Strouhal curves stored therein is also provided. A viscosity of the fluid is measured. One of the Roshko/Strouhal is selected curves based on the method viscosity. A volumetric flow through the meter is determined utilizing the selected Roshko/Strouhal curve.
Abstract:
Various systems and methods are provided for facilitating powered communications over legacy cabling. This can be implemented in a fuel dispensing environment where the fuel dispenser can include a diode coupler communicatively coupled to the legacy cabling for receiving powered communications from one or more backroom components over the legacy cabling during a power outage, and a broadband communications modem for communicating with the one or more backroom components, wherein the diode coupler provides power from the powered communications to the broadband communications modem. Relays can be used at the fuel dispenser and/or backroom components to determine whether to use the powered communications or legacy communications based on whether power is available at the components communicating over the legacy cabling. In addition, failsafe protection of legacy communication circuits is provided when powered communications are active.
Abstract:
A fuel flow meter assembly for detecting fraud caused by tampering. The fuel flow meter assembly includes a fuel flow meter comprising a shaft and a displacement sensor operatively connected to the fuel flow meter shaft for generating information representative of an amount of fuel delivered through the fuel flow meter. At least one transponder is coupled with one of the fuel flow meter shaft and the displacement sensor. At least one interrogator electronics is coupled with the other of the fuel flow meter shaft and the displacement sensor. The at least one interrogator electronics is configured for remote electronic communication with the at least one transponder.
Abstract:
A remote transaction system for contactless payment and user identification at fuel dispensers, and the like is provided. The remote transaction system comprises a compact assembly, a control system, and communications electronics. The compact assembly is adapted to be attached to a surface, such as a bezel, and comprises at least one antenna. Also, the compact assembly may comprise antennas operating at different frequencies and at least one audio or visual element. Further, antenna arrays may be formed comprising a second antenna arrangement separate from the compact assembly and coupled to the surface. The compact assembly and/or a second antenna arrangement may comprise a tuning element, such as a tuning ring. The communications electronics are adapted to wirelessly communicate with at least one remote communications device and provide wireless communications to the control system for processing. A method for attaching the compact assembly to a surface is also provided.
Abstract:
A system used in a retail environment, such as a fuel dispensing environment, for providing secure communication of payment information to a host computer. The system includes at least one keypad device configured to receive and encrypt personal information according to a first encryption scheme to produce encrypted personal data. The keypad device is further operative to generate a local zone emulated message in a message format of a second encryption scheme, the local zone emulated message containing the encrypted personal data. A site controller is in communication with the keypad device to receive the local zone emulated message. The site controller is configured to provide a message in the second encryption scheme to a security module for decryption and re-encryption in the first encryption scheme. An emulator is associated with the site controller to emulate the security module. In this regard, the emulator is operative to receive the local zone emulated message and return the encrypted personal data without decryption. The site controller provides the encrypted personal data to the host computer according to the first encryption scheme.