Abstract: Measuring, controlling, and automating inventory of product stored in a collapsible tank. An interface device can interact with a sensor installed at the collapsible tank and a metering device, such as a flow meter, to generate a strap table for the collapsible tank. The strap table can include entries that correlate a process value measured by the sensor to a volume of product corresponding to that process value. Current volume of product stored in the collapsible tank can be determined by comparing a current process value to entries in the strap table or by an interpolation process. The interface device can generate an updated strap table based on a relaxation curve to account for settling of the collapsible tank. The interface device can synchronize data with a host device, such as a personal computer or handheld computer, that includes software for tracking inventory in collapsible tanks.

Abstract: A liquid level monitoring and transmission system includes a mechanical assembly in communication with the liquid in a container and a dual electronic encoder assembly in communication with the mechanical assembly for determining liquid level. The dual electronic encoder assembly includes a first encoder for encoding data indicative of fine level measurements and a second encoder for encoding data indicative of coarse level measurements. The system further includes at least one processor for controlling operation of the first and second encoders and for processing encoded data therefrom and a power control system.

Abstract: A liquid level monitoring and transmission system includes a mechanical assembly in communication with the liquid in a container and a dual electronic encoder assembly in communication with the mechanical assembly for determining liquid level. The dual electronic encoder assembly includes a first encoder for encoding data indicative of fine level measurements and a second encoder for encoding data indicative of coarse level measurements. The system further includes at least one processor for controlling operation of the first and second encoders and for processing encoded data therefrom and a power control system.

Abstract: Measuring, controlling, and automating inventory of product stored in a collapsible tank. An interface device can interact with a sensor installed at the collapsible tank and a metering device, such as a flow meter, to generate a strap table for the collapsible tank. The strap table can include entries that correlate a process value measured by the sensor to a volume of product corresponding to that process value. Current volume of product stored in the collapsible tank can be determined by comparing a current process value to entries in the strap table or by an interpolation process. The interface device can generate an updated strap table based on a relaxation curve to account for settling of the collapsible tank. The interface device can synchronize data with a host device, such as a personal computer or handheld computer, that includes software for tracking inventory in collapsible tanks.

Abstract: An electronic fueling data acquisition and wireless communications delivery system. The unit is mounted on Aircraft Fueling Vehicles and Aircraft Fuel Servicing Hydrant Vehicles (Hydrant Vehicles) and is hardwired to an external pulse transmitter. The pulse transmitter transmits pulse signals proportional to the volume of fuel that is being pumped. A software configurable hardware filter attenuates the input signal which is then counted by a pulse accumulator. When fueling ceases, the application software can convert the pulse signal values to an equivalent volumetric total. The information can then be wirelessly communicated to other devices without the need for maintaining paper hard copies.

Abstract: A level transmitter can generate a level measurement signal according to the position of a float that follows fluid level in a tank. The transmitter can comprise an optical encoder with a patterned disk that is linked to the float so that fluid level change produces disk rotation. An array of optical sensors positioned on one side of the disk can read reflective and absorptive patches attached to the disk's surface to identify disk position and disk rotation. One or more of the sensors can collect a signal from a reference area of the disk. Circuitry can compare the signals output by each data sensor to the reference signal to enhance binary classification of each acquired data signal. The transmitter can operate in multiple encoding modes, each of which can provide a level of redundancy.

Abstract: A level transmitter can generate a level measurement signal according to the position of a float that follows fluid level in a tank. The transmitter can comprise an optical encoder with a patterned disk that is linked to the float so that fluid level change produces disk rotation. An array of optical sensors positioned on one side of the disk can read reflective and absorptive patches attached to the disk's surface to identify disk position and disk rotation. One or more of the sensors can collect a signal from a reference area of the disk. Circuitry can compare the signals output by each data sensor to the reference signal to enhance binary classification of each acquired data signal. The transmitter can operate in multiple encoding modes, each of which can provide a level of redundancy.

Abstract: An electronic fueling data acquisition and wireless communications delivery system. The unit is mounted on Aircraft Fueling Vehicles and Aircraft Fuel Servicing Hydrant Vehicles (Hydrant Vehicles) and is hardwired to an external pulse transmitter. The pulse transmitter transmits pulse signals proportional to the volume of fuel that is being pumped. A software configurable hardware filter attenuates the input signal which is then counted by a pulse accumulator. When fueling ceases, the application software can convert the pulse signal values to an equivalent volumetric total. The information can then be wirelessly communicated to other devices without the need for maintaining paper hard copies.

Abstract: A tank side monitor includes two processor boards, a main/communication board, containing field communications interface circuitry and interface circuitry, and an optional IS module, containing HART interface circuitry. The two processor boards are link by an optically coupled serial communications bus. The HART circuitry is multiplexed and can be operated by either the Main/Communication board processor or a local processor on the HART IS board. The optional IS module, an extension of the HART IS board, provides options such as an IS 4-20 mA input or output or other IS I/O. The TSM employs a modular approach for hardware and software, whose implementation consists of a number of modules and programs, the first being the Main/Communications board software. Other programs are contained within the HART interface module. Due to the modular approach taken in the hardware design, the software is also modular and operates on two hardware modules: Main/Communications module software; and HART module software.