Abstract: A method is provided for determining anomalies associated with railcar wheels of a railcar wheelset, or a railcar bogie assembly that the railcar wheelset is part of, or a track, during motion of the railcar wheelset on a track. An apparatus is removably attached to an axle of a railcar wheelset. The apparatus includes an axle-mounted sensor cuff. The sensor cuff includes one or more sensors, such as inertial measurement units (IMU's), mounted thereto to measure parameters that are used for determining the anomalies during motion of the railcar wheel on the track. The railcar wheelset is moved on the track. Measured parameters are collected from the one or more sensors and are used for determining the anomalies during motion of the railcar wheelset on the track.

Abstract: Systems and methods are provided for assessing one or more fees in connection with occupancy of a user at a shared office environment. One exemplary method includes receiving, from a sensor associated with a workstation, confirmation of a presence of a user at the workstation, and receiving, from the sensor, an occupancy interval based on the presence of the user at the workstation up to a departure of the user from the workstation. The method also includes, in response to receiving the occupancy interval, determining a fee associated with occupancy of the workstation by the user, based on at least the occupancy interval, and initiating a transaction to a payment account associated with the user for the determined fee, thereby providing payment specific to the occupancy of the workstation by the user substantially upon the departure of the user from the workstation.

Abstract: Systems and methods are provided for assessing one or more fees in connection with occupancy of a user at a shared office environment. One exemplary method includes receiving, from a sensor associated with a workstation, confirmation of a presence of a user at the workstation, and receiving, from the sensor, an occupancy interval based on the presence of the user at the workstation up to a departure of the user from the workstation. The method also includes, in response to receiving the occupancy interval, determining a fee associated with occupancy of the workstation by the user, based on at least the occupancy interval, and initiating a transaction to a payment account associated with the user for the determined fee, thereby providing payment specific to the occupancy of the workstation by the user substantially upon the departure of the user from the workstation.

Abstract: An information signal to be communicated to a roof-mounted light bar or other electrical or electronic device travels over the vehicle's or other environment's power bus or other power conductor. In one exemplary illustrative non-limiting implementation, a modulated current load draws power supply current in an amount that is instantaneously responsive to at least some characteristic of the information signal to be communicated. This modulated current loading induces the vehicular or other power supply (e.g., DC battery) to modulate its output voltage in a manner that is responsive to the modulated current loading. A voltage sensor and demodulator also connected to the power bus senses the resulting voltage fluctuations and demodulates those fluctuations to recover or regenerate the original information signal.

Abstract: An information signal to be communicated to a roof-mounted light bar or other electrical or electronic device travels over the vehicle's or other environment's power bus or other power conductor. In one exemplary illustrative non-limiting implementation, a modulated current load draws power supply current in an amount that is instantaneously responsive to at least some characteristic of the information signal to be communicated. This modulated current loading induces the vehicular or other power supply (e.g., DC battery) to modulate its output voltage in a manner that is responsive to the modulated current loading. A voltage sensor and demodulator also connected to the power bus senses the resulting voltage fluctuations and demodulates those fluctuations to recover or regenerate the original information signal.

Abstract: A rugged, all-electronic fluid dispensing system for use with pipettes or in other contexts indirectly measures fluid flow by using a non-linear system model to correlate vacuum existing at the top of a column of suspended fluid. Non-contact operation is provided to eliminate the need for contact-type closed-loop fluid flow sensing and associated potential cross-contamination risks. In one particular exemplary non-limiting illustrative implementation, an electronic controller within a gun-shaped, cordless self-contained pipetter housing dynamically calculates valve opening time based on a non-linear equation. Calibration is used to derive equation constants, and column vacuum pressure before the valve is opened is used as the independent variable to derive a valve opening time that will result in accurate dispensing of a desired programmed fluid quantity.