Abstract: Implementations described and claimed herein provide systems and methods for isolation detection. In one implementation, an axial acoustic signal is obtained. The axial acoustic signal is captured using an axial sensor deployed in a structure in a subterranean surface. The axial acoustic signal is separated into a first wave region and a second wave region by applying velocity filtering. An axial symmetry of a portion of the structure is determined based on at least one of the first wave region or the second wave region.

Abstract: A fiber optic sensing (FOS) system and method. The system may include one or more interrogator units and a proximal wavelength division multiplexer (WDM) and a distal WDM optically connectable to the one or more interrogator units, an upgoing transmission fiber, a down-going transmission fiber, and one or more downhole sensing fibers. The method may include transmitting one or more light pulses from an interrogator unit, multiplexing the one or more light pulses from the interrogator unit with a proximal WDM into an upgoing transmission fiber and a down-going transmission fiber, and receiving the one or more light pulses with a distal WDM. The method may further include multiplexing the one or more light pulses from the upgoing transmission fiber and the down-going transmission fiber into one or more downhole sensing fibers and receiving backscatter light from at least one of the one or more downhole sensing fibers.

Abstract: A wellbore pumping unit comprising a main pump, a power source, a controller, and a plurality of sensors is provided. A method of performing a diagnostic check of the unit controller and the plurality of sensors when power is applied to the unit controller. A diagnostic application executing in memory writes a status of the plurality of analog inputs of a plurality of valve position sensors, a status of a plurality of frequency inputs of a plurality of flowmeters, and a plurality of calibration data files that correlate to a plurality of sensors to a diagnostic report file. The status of the sensor inputs and calibration data files can be a pass or a fail. The status of the sensor inputs can be displayed on a human machine interface.

Abstract: A distributed acoustic system (DAS) may comprise an interrogator and an umbilical line attached at one end to the interrogator, a downhole fiber attached to the umbilical line at the end opposite the interrogator. The interrogator may further include a proximal circulator, a distal circulator connected to the proximal circulator by a first fiber optic cable, and a second fiber optic cable connecting the proximal circulator and the distal circulator.

Abstract: A method includes receiving, from a first head end system (HES), a first raw file including a first set of events in a first HES specific format, and modifying the first set of events in the first raw file by a first HES adapter to create a first unified formatted file. The first unified formatted file is in a unified format, and the first HES adapter is connected to the first HES. The method further include transforming, by a core HES adapter, the first unified formatted file to a first data management formatted file according to a data management format, and consuming the first data management formatted file.

Abstract: Techniques for efficient compression of sensor data are described herein. In an example, metrology data is received from a metrology device, the metrology data comprising one or more of: voltage (V) data; current (A) data; resistive power (W) data; and volt-amps reactive power (VAR) data. The metrology data is processed, wherein the processing comprises: performing peak-detection on the metrology data, to create data-signals comprising: a timestamped peak-values data-signal; and a peak-removed data-signal. Median-filtering is performed on the peak-removed data-signal, wherein a median-filtered data-signal is created. Level-shift detection is performed on the median-filtered data-signal, wherein a timestamped level-shift data-signal is created. The data is sent to a server. The data may include the timestamped peak-values data-signal and the timestamped level-shift data-signal.

Abstract: An apparatus for determining a suitability of a frequency band for data communication with a node by way of a communication channel may be provided. The apparatus may comprise a receiver configured to receive first and second signals from the node by way of the communication channel, the first and second signals having frequencies within the frequency band. The apparatus may comprise processing circuitry communicatively coupled to the receiver, the processing circuitry being configured to determine a calibration function depending on the first signal, process the second signal depending on the calibration function, determine the suitability of the frequency band for data communication with the node by way of the communication channel depending on the processed second signal and output an indication of the said suitability.

Abstract: A sensing system utilizes multiple wavelengths communicated on a single pulse to a sensor, for example, an optical fiber. Backscattered or reflected light from a number of locations or depths along the sensor are analyzed to correct for 2? phase jump error. A phase sensing method detects the 2% phase jump error associated with one or more measurements from the sensor. Correcting for the 2? phase jump error provides increased accuracy of the one or more measurements, for example, improved vertical sensing profiling, production and fracture monitoring, and micro-seismic monitoring.

Abstract: Power pedestals that are configured with an internal metering assembly that includes a meter socket allows for remote monitoring of power usage. The power pedestals also include a display that can display information regarding parameters of the power pedestals and/or current users. The power pedestals can include transceivers and can wirelessly communicate with mobile devices of various users and a remote monitoring station.

Abstract: A monitoring circuit for a photovoltaic module includes a measurement conditioning circuit, a microcontroller circuit, and a transmitter circuit. The measurement conditioning circuit includes a voltage sense terminal, a voltage reference terminal, and a digital measurement data output. The microcontroller circuit includes a digital measurement data input coupled with the digital measurement data output, a modulation clock input, a measurement data stream output, and a transmit select output. The transmitter circuit includes a measurement data stream input coupled with the measurement data stream output, a modulation clock output coupled with the modulation clock input, a transmit select input coupled with the transmit select output, and positive and negative output communication terminals.

Abstract: A configurable control panel system (10) for an agricultural machine, the system comprising: one or more pre-coded pushbuttons (1), each push button having a code mechanism adapted to carry a specific code representing a dedicated function for the push button; a control panel (5) provided with one or more sockets (7) adapted to receive and detachably attach any one of said pre-coded push buttons (1), each socket having a decoding mechanism adapted to generate a code specific control signal based on the code carried by the pre-coded push button when the push button is actuated.

Abstract: The present disclosure provides a method and an Internet of Things system for gas usage safety warning based on a smart gas, the method is performed by a smart gas safety management platform of an Internet of Things system for gas usage safety warning based on a smart gas, comprising: based on gas usage data, determining a gas monitoring object from at least one gas device; determining initial objects based on the gas monitoring object and a gas usage threshold; determining a target object based on historical gas data of the initial objects; and sending gas usage safety warning information to a gas user corresponding to the target object.

Abstract: A hybrid telemetry system includes a plurality of telemetry networks configured to communicate a modulated signal representing digital data along adjoining sections of a pipe string. The plurality of telemetry networks may each be optimized or particularly suitable for the configuration of the pipe string, the well, and/or the environment of the well occurring in each of the adjoining sections. Some of the plurality of telemetry networks may overlap to provide redundancy of the communication of the digital data.

Abstract: A battery-powered consumption meter (10) is provided, which comprises a measurement means for measuring a value relating to an accumulated volume of a fluid flowing (41) in a connected fluid pipe system (40) to make up a consumption meter representation of the accumulated volume, and a first communication means (11), which is a wireless two-way communication means arranged for transmitting (14d) the consumption meter representation from the consumption meter (10) to an external device (20) external to the consumption meter (10), and for receiving a communication (14a, 14b, 14c) therefrom, the consumption meter (10) having at least two modes of operation comprising: a normal operation mode, and a calibration mode different from the normal operation mode, wherein in calibration mode the consumption meter (10) is arranged to transmit the consumption meter representation (14d) to the external device (20) in response to a request (14c) therefor from the external device (20).

Abstract: Computer implemented methods and systems for detecting noise in cardiac activity are provided. The method and system obtain a far field cardiac activity (CA) data set that includes far field CA signals for a series of beats, overlay a segment of the CA signals with a noise search window, and identify turns in the segment of the CA signals. The method and system determine whether the turns exhibit a turn characteristic that exceed a turn characteristic threshold, declare the segment of the CA signals as a noise segment based on the determining operation, shift the noise search window to a next segment of the CA signal and repeat the identifying, determining and declaring operations; and modify the CA signals based on the declaring the noise segments.

Abstract: Keyboards, input devices, and related systems include key mechanisms with keycaps and actuators that provide adjustable feedback in response to user input. The actuators are controllable to provide variable tactile force or audible feedback that is dependent upon the user input. Encoders are able to transduce a location or relative position of a keycap as it is being pressed over time, and a signal is provided to actuators to cause them to provide feedback corresponding to the position of the keycap as it moves. The feedback can change the feel or sound of the keycap based on the keycap positions, time of operation, velocity, user identity, and other factors. Thus, the feel or sound of a keyboard or related input device can be adjusted electronically for efficient testing and increased user customization and feedback modes.

Abstract: Exemplary embodiments are directed to a system and method for continuous downlinking communication from a surface location to a bottom hole assembly during drilling operations. The system transmits harmonic pressure wave fluctuations generated by a modulator, which is disposed outside of a surface-located fluid line with a flap rotatably disposed entirely inside of the fluid line encoding data by harmonics. One letter of the combinatorial frequencies signal alphabet can have more than 200 different orthogonal frequencies components; each component represents a unique combination of downlinking command purpose and value. For deepest portion of a long trajectory well, the system uses a narrow frequency range (2-3 Hz) with two letters resulting in more than 250 combinations. The system provides continuous automatic downhole control of the signal-to-noise ratio to achieve robust decoding of downlinking signals with a transmission data rate ten times faster as compared to 1-2 bits per minute in the industry.

Abstract: An acoustic isolator and methods to the same. The acoustic isolator may comprise a body, one or more annular chambers formed inside the body of the acoustic isolator and positioned along a longitudinal axis of the acoustic isolator, an annular groove formed on an outer surface of the body of the acoustic isolator, and a passage disposed between the one or more annular chambers and the annular groove. The method may comprise transmitting an acoustic wave from a transmitter disposed on an acoustic logging tool into a subterranean formation, receiving an acoustic signal from the subterranean formation with a receiver disposed on the acoustic logging tool, and attenuating a second acoustic wave that moves between the transmitter and the receiver and through an acoustic isolator.

Abstract: A patient monitoring device includes an ECG sensor coupled to a patient, a sensor coupled to the patient and configured to detect bio-vibrational signals, and a radio frequency monitoring device configured to produce information responsive to electromagnetic energy reflected from the patient's thoracic cavity. A processor processes the ECG signals, the bio-vibrational signals, and the radio frequency information to generate a plurality of physiological parameters of the patient. The processor also performs at least one of a predictive analysis and a trend analysis of the plurality of physiological parameters to determine a current clinical condition of the patient. The trend analysis includes determining a substantial relationship between changes in the plurality of physiological parameters.

Abstract: Apparatus, systems, and methods for acoustic transmission via tubular are provided. A transceiver comprises a piezoelectric transducer; a switch coupled to the piezoelectric transducer; a charge mode receiver coupled to the switch; and a transmitter coupled to the switch.