Abstract: The present disclosure relates to a system and a method for validating the validity of a sensor, in particular, validating the validity of a sensor using a control limit. The method for validating the validity of a sensor using a control limit includes inferring a posterior distribution of a parameter in a Bayesian technique using a prior distribution of the parameter of sensor data and historical data of the sensor, setting a target credible interval for the posterior distribution of the parameter and setting a control line of the sensor data using the set credible interval, and validating the validity of the sensor by monitoring whether the actual measurement data of the sensor deviates from the control line.

Abstract: Systems and methods for detecting faults in estimator data are provided. In one or more examples, measurements from one or more data sources is received. The received data is used to calculate an innovation which in one or more examples can represent the difference between the received data and an expected value of the data. The innovation can then be used to generate a test statistic which is then accumulated at a plurality of monitors, wherein each monitor of the plurality of monitors is configured to accumulate the test statistic over varying periods of time. The accumulated test statistic at each monitor can be compared against a predefined threshold that is set for each individual monitor. If the accumulated test statistic at any particular monitor is found to be above its corresponding predefined threshold, then the system can alert the user that the received data is likely to be faulty.

Abstract: An Empirical Mode Decomposition (EMD)-based noise estimation process is disclosed herein that allows for blind estimations of noise power for a given signal under test. The EMD-based noise estimation process is non-parametric and adaptive to a signal, which allows the EMD-based noise estimation process to operate without necessarily having a priori knowledge about the received signal. Existing approaches to spectrum sensing such as Energy Detector (ED) and Maximum Eigenvalue Detector (MED), for example, may be modified to utilize a EMD-based noise estimation process consistent with the present disclosure to shift the same from semi-blind category to fully-blind category.

Abstract: A measurement device is provided. The measurement device comprises a display configured to display a measurement trace, an analyzing unit configured to analyze a subset of measurement data represented by the measurement trace on the basis of at least one target measurement parameter, and a post-processing unit configured to search for the at least one target measurement parameter.

Abstract: Methods and apparatus to control heating based on monitoring feedback of temperature sensors are disclosed. An example heating apparatus includes: a heater configured to apply heat energy to an object; and control circuitry configured to: control the heater based on a target temperature to which the object is to be heated; in response to determining that a first measured temperature sample associated with a first temperature sensor is greater than a first reference temperature, updating a first temperature range and the first reference temperature based on the first measured temperature sample; and in response to determining that a second measured temperature sample associated with the first temperature sensor is not within the first temperature range, reduce the priority of the first temperature sensor for control of applying the heat energy to the object.

Abstract: A system and method for dead reckoning for marine positioning applications is provided. After INS mechanization, an exponential moving average (EMA) is calculated that is used to generate an update for a Kalman filter. The use of the EMA allows the system to limit position error in a linear fashion while being self-contained.

Abstract: The present disclosure provides a method of perceiving a position and pose of a hydraulic support group based on multi-point ranging and belongs to the field of test or measurement technologies unlisted in other categories. The method uses a hydraulic support group. The hydraulic support group includes multiple juxtaposed hydraulic supports. The method includes: with a plane above a base as a reference plane, establishing a reference coordinate system; perceiving a relative position of the base and a canopy of the hydraulic supports and perceiving a position and pose of a single hydraulic support; when the hydraulic supports have axial offset and roll phenomenon, performing offset amount calculation; based on the perception of the position and pose of single hydraulic supports, performing perception on the position and pose of the hydraulic support group.

Abstract: Methods and systems are provided for rating quality of a scale within a plurality of scales. A method of determining a quality rating may include weighing a package on a scale, weighing the first package on a plurality of other scales, and comparing the weight of the package on the scale with the weight of the package on the plurality of other scales. The more agreement between the weight of the package on the scale with the weight of the package on the plurality of other scales, the higher the quality rating of the scale.

Abstract: A vibration analyzer for use in determining a rotational speed. The vibration analyzer includes an input for sensing vibration data, a memory for storing the vibrational data, and a processor. The processor produces a spectral plot of the vibrational data, locates peaks in the spectral plot, receives an input rotational speed, and scans the spectral plot in predetermined rotational speed increments to provide a candidate rotational speeds. For each candidate rotational speed, a number of associated harmonics is identified, closest peaks in the spectral plot to the candidate rotational speed and its harmonics are located, gaps between the closest peaks and the candidate rotational speed and its harmonics are measured and summed, and a sum of the gaps is recorded. The candidate rotational speed that is associated with the maximum peak sum is selected as the nominal rotational speed.

Abstract: An apparatus is described that determines an estimated rotational speed of a rotating component of a machine in the absence of a reliable tachometer signal to indicate an actual rotational speed.

Abstract: A method for analyzing a sensor assembly configuration of an at least semi-autonomous robot includes determining a plurality of spatial segments that spatially subdivide an environment of the robot. The method further includes determining an available individual component performance of a respective individual component of the sensor assembly configuration in relation to the spatial segments. The method further includes determining a sensor assembly requirement that must be satisfied by the sensor assembly configuration in relation to the spatial segments. A linear optimization function with parameters that include the spatial segments, the individual component performances, and the sensor assembly requirements is generated and then solved according to the method. The solution of the linear optimization function indicates if the environment of the robot is configured to be captured by the sensor assembly configuration in accordance with the sensor assembly requirement.

Abstract: A method can include acquiring data associated with a field operation in a geologic environment; processing the data by partitioning operationally and representing symbolically; formulating a symbolic query for an operating procedure specification; performing a search of the symbolically represented data utilizing the symbolic query and a probabilistic chain model; receiving a search result responsive to the search; assessing compliance with the operation procedure specification utilizing the search result; and issuing a control signal to field equipment utilizing the assessment of compliance.

Abstract: A method of manufacturing a blown film (F) comprising extruding it through a die (D), flattening the film with a folding angle that varies, measuring a transverse profile of a characteristic property of the blown film, which property is summed over two juxtaposed portions of a wall of the flattened film, and estimating a polar profile on the basis of said transverse profile, the method further comprising determining polar positions of the periphery of the flattened blown film that correspond to a transverse position of the film, determining discretized angle values flanking each of the polar positions, and, on the basis of said discretized angle values, computing interpolation coefficients that associate the polar profile of the film with a discretized polar profile of the film, and, based on said interpolation coefficients, updating the estimation of the discretized polar profile of the film by applying a Kalman filter.

Abstract: A standard for calibrating a coordinate measuring machine includes a main body with a permanent calibration structure. The calibration structure includes a first arrangement. The first arrangement is configured in such a way that three axes of a projection of the first arrangement on a plane, the axes intersecting at a common point, each run over an identically configured first portion. The first portions are each delimited by the common point on one side. The identically configured first portions each have n zones. Directly adjacent zones differ in one optical property. In various implementations, n is greater than or equal to 3.

Abstract: Systems, methods, techniques and apparatuses of power network state estimation are disclosed. One exemplary embodiment is a method for state estimation in a power network comprising receiving a set of supervisory control and data acquisition (SCADA) information including a power network topology; generating a SCADA state estimation using the set of SCADA information; receiving, with a cloud-computing architecture, a set of PMU phasors; aligning, with the cloud-computing architecture, a timestamp of the SCADA estimation and a timestamp of the set of PMU phasors; updating, with the cloud-computing architecture, the power network topology using the set of PMU phasors; generating, with the cloud-computing architecture, a hybrid state estimation using the updated power network topology, the set of PMU phasors, and the SCADA state estimation; and transmitting the hybrid state estimation to a local control system.

Abstract: A system for monitoring flooding can include a plurality of flood monitoring stations and at least one flood warning station in communication with each flood monitoring station. Each flood monitoring station can include at least one sensor configured to detect water level and a visual warning device to alert users of actual or predicted flooding. Each flood monitoring station can include a processor to determine a water level using the sensor and control the visual warning device. Each flood monitoring station can include a processor and a wireless communications device to communicate the water level to the flood warning station.

Abstract: A method for identifying aircraft faults, comprising: receiving aircraft health dataset comprising plurality of maintenance identifiers which each identify aircraft fault; storing diagnostics database storing plurality of part identifiers which each identify part of aircraft which is possible cause of generation of at least one maintenance identifier; generating graph of plurality of maintenance identifiers and plurality of edges in which maintenance identifiers are connected to one another by edge if maintenance identifiers are identified by common part identifier in diagnostics database; extracting clique from graph, clique comprising plurality of maintenance identifiers and respective plurality of edges of graph; determining intersection between at least two edges of clique; identifying candidate part identifier which is common to intersecting edges of clique, candidate part identifier identifying part of aircraft which is possible cause of generation of at least some of maintenance identifiers of clique;

Abstract: An apparatus for generating a blood pressure estimation model includes: a signal acquirer configured to receive input a first signal and a second signal from a user; and a processor configured to obtain a pulse transit time (PTT) as a first predictor variable value based on the first signal and the second signal, to extract at least one feature from the second signal, to obtain a second predictor variable value based on the extracted at least one feature, and to generate a blood pressure estimation model based on the first predictor variable value and the second predictor variable value.

Abstract: Various embodiments of the present technology may provide methods and apparatus for detecting battery cell imbalance. The apparatus may provide a fuel gauge circuit to detect imbalance in a battery pack with two series-connected battery cells and determine the amount of imbalance using only the positive and negative terminal of the battery pack.

Abstract: An intelligent electronic device (IED) having a programmable display is provided. The present disclosure provides for defining screens of a display on a revenue based energy meter. The method utilizes Modbus registers and defines a programming technique wherein a user can custom make any desired screen for every application based on what a user needs. The programming utilizes Modbus registers maps to allow for the customizable screens. Moreover, the display interface allows for customized labeling to provide notice and information to users as to measured parameters other than electricity that the meter might be accumulating such as steam, water, gas or other type of commodity.