36results about How to "Sufficiently accurate" patented technology

The present invention relates to a method for the real-time identification of seizures in an Electroencephalogram (EEG) signal. The method provides for patient-independent seizure identification by use of a multi-patient trained generic Support Vector Machine (SVM) classifier. The SVM classifier is operates on a large feature vector combining features from a wide variety of signal processing and analysis techniques. The method operates sufficiently accurately to be suitable for use in a clinical environment. The method may also be combined with additional classifiers, such a Gaussian Mixture Model (GMM) classifier, for improved robustness, and one or more dynamic classifiers such as an SVM using sequential kernels for improved temporal analysis of the EEG signal.

Methods for road safety enhancement use mobile communication device (MCD) onboard vehicle to share traveling data through inter-vehicle communication broadcasting, perform road hazard warning, enhance road navigation, and provide autonomous road assistance. The methods have a variety of vehicle status data, such as moving data, steering data, or indicator data, obtained through GPS or image capturing and recognition of instrument cluster of vehicle. The image capturing and recognition allows to get speed data from indication of speedometer, indication of left or right turn signal, steering action data corresponding to steering wheel rotation, and light-on indication of system status indicators. To facilitate that, the MCD may be placed in front of steering wheel, and, if applicable, also in coupling with movement of steering wheel. The MCD may perform relative positioning map-matching lane correlation and GPS-update-interval speed positioning to improve data quality regarding vehicle moving status.

A narrowband signal detector has an adaptable filter and controller for controlling the centre frequency and the bandwidth of the filter, to track the narrowband signal. Better control of the filter can be achieved by basing the filter control on a comparison of output and input to the filter. The comparison gives a more direct measure of how well the filter is tracking the narrowband signal. In the case of a notch filter, if there is poor tracking. The control should be biased rapidly towards improved tracking speed. Otherwise, for good tracking, the control should be biased towards accuracy of tracking. This enables speed and accuracy of detection requirements to be met with less computational load. Applications include telecommunications signalling or data tone detection. Multiple narrowband signals can be detected by a cascade of filters.

An apparatus and a method for monitoring and/or analysis of electrical machines during operation, wherein the electrical machine has at least one generator with a shaft and drive means for driving this shaft, wherein the shaft is grounded at the first end of the generator, and wherein a measurement unit for measurement of shaft voltage and/or shaft current as a function of time is provided on the shaft at the second end of the generator. An apparatus such as this allows the combined and simultaneous measurement of various fault states by supplying signals for the shaft voltage and/or the shaft current to an analysis unit, wherein the analysis unit allows combined and simultaneous analysis of at least two potential fault states of the electrical machine. Simultaneous cross-relationships between the individual measurement results of individual fault states may be provided so as to allow a clearer and more reliable diagnosis of critical states, not possible when individual phenomena are considered separately.

A method for determining the position of an element driven along a travel segment by a shaft of a motor includes counting current ripples detected in an armature current signal of the motor as the motor shaft rotates to drive the element. A first time interval between when the motor is turned on with power being supplied to the motor and when the first current ripple is detected is determined. A second time interval between when the last current ripple is detected after the motor has been turned off with the power supplied to the motor being interrupted and when the motor shaft stops rotating is determined. First and second current ripple components corresponding to the first and time intervals, respectively, are estimated. The position of the element along the travel segment is determined based on the counted current ripples and the estimated first and second current ripple components.

A method for monitoring and limiting the output or the torque of a drive motor in a drive train of a road motor vehicle, including the steps of: determining a permissible maximum value of the output or the torque as a function of a signal from a driver input sensor; determining an actual value of the output or the torque, and comparing the actual value to the maximum value and triggering a measure that limits the output or the torque as a function of the comparison result. The method is characterized by the repeated formation of a difference from the actual value and the maximum value, formation of a sum of values of a function of the difference, comparison of a value of the sum to a threshold value, and initiation of the measures if the value of the sum is greater than the threshold value. An independent claim is directed to a control device, which is programmed to implement the method.

A method of measuring and transmitting a tire characteristic using a sensor device mounted to a tire of a wheel, the sensor device comprising a sensor element, an accelerometer, a wireless transmitter, and a microprocessor; the method comprising the steps of: a) obtaining acceleration data; b) digitally filtering the acceleration data; c) determining moments in time when the wheel is in an angular position range; d) obtaining other sensor data; e) transmitting the other sensor data at said moments in time, step b) comprising using exponential moving average filters connected in series, corresponding to a predefined set of formulas comprising parameters, and f) determining number of samples per 360° rotation, and setting the parameters to a value proportional to said number of samples. A sensor device adapted for performing said method.

The invention relates to a condition monitoring method and a corresponding system for measuring the stopping accuracy of an elevator car. In the invention, a door zone is defined for each floor, a door zone detector is mounted on the elevator car, the elevator car is moved towards a destination floor, acceleration values of the elevator car are measured during its travel towards the destination floor by means of an acceleration sensor attached to the elevator car and the distance of the stopped elevator from the edge of the door zone is calculated on the basis of the measured acceleration values.

A method of creating a systems requirement document by using a numerical modeling tool, such as a spreadsheet, to prototype an operational process in terms of a numerical picture of the goals, metrics, performance targets and constraints used by managers of the operational process. A process design blueprint is defined for the operational process, including data sources and data sinks. A representative model of the process design blueprint is created. If the model is not detailed enough for implementation by IT professionals, model objects and data flows are added to the blueprint and the representative model is modified to be consistent with the blueprint. Surrogate calculations may be made for computational task objects or, alternatively, separate process design blueprints may be generated for such computational task objects. This cycle is repeated until the model is detailed enough for implementation.

Apparatus (100) for measuring drilling parameters of a down-the-hole drilling operation for mineral exploration includes a module 10.1 mounted in-line with a drill string (110) and proximate to a drill bit (120). The drill string (110) is rotated and progressed down the hole. The module (10) has sensors for sensing conditions. The apparatus (100) measures drilling parameters based on the sensed conditions. The measured data is logged in the module (10) and then transmitted to a computer for a drilling operator's use. The drilling operator monitors progress and optimises performance of the drilling operation based on the measured data. Measurement of drilling parameters based on sensed data proximate to the drill bit enables accurate determination of actual WOB, torque and RPM fluctuations, axial vibration, radial vibration, temperature, RPM. A second module 10.2 is mounted in-line with the same drill string (110) but away from the drill bit (120). The second module 10.2 measures the same drilling parameters as the module 10.1 proximate to the drill bit (120). The driller is provided with the data recorded by the second module 10.2 to judge the performance of the drilling operation. Comparing drilling parameters based on sensed data proximate to the drill bit and distal to the drill bit enables accurate determination of vertical drag/resistance of the drill string (110) within the hole, rotational resistance of the drill string (110), degree of wind-up of the drill string (110) and presence of stick-slip conditions at lower end of the drill string (110).

A fuser control system and method are provided for improving the image control of printing systems, including digital front-end processors, color printers and post-finishing system. This automatic image control system, including measurement and calibration, by registering the thermal load measurements.

An electronic circuit includes a node coupled to a load to be driven, and a power device, which can be switched between activation and deactivation and coupled to the node. The circuit further includes a current generator having an output connected to the node and that can be enabled to generate current at least when the power device is deactivated. The circuit also includes a comparator for comparing an electric voltage of the node with a reference voltage and is configured to generate a comparison signal based thereon.

A system and computer program are provided for computer aided diagnosis or monitoring of heart failure patients. The system and computer program obtain patient data representing measurements of a select and limited set of health indicators of a patient. A trained classifier is applied to the patient data to obtain a classification of the occurrence or degree of heart failure for the patient. The limited set of health indicators is specifically selected from a large set of health indicators which are known to be predictive of heart failure on the basis of a clinical study which demonstrated the accuracy of the classification using this select set.

Biooxidation reactions can be controlled by a method which comprises the steps of: (1) independently adding a substrate and a co-substrate at predetermined rates to a bioxidation reaction mixture comprised of a biocatalyst; (2) measuring the oxygen consumption rate and carbon dioxide evolution rate from the reaction mixture; (3) determining the instantaneous rates of substrate and cosubstrate consumption by solving simultaneous equations relating carbon dioxide evolution rate and oxygen consumption rate to the substrate oxidation stoichiometry, the cosubstrate combustion stoichiometry, and optionally the biomass formation stoichiometry; (4) simultaneously adjusting the substrate and cosubstrate addition rates to the rates of substrate oxidation and cosubstrate consumption in order to maximize the rate of product formation while simultaneously minimizing the rate of cosubstrate usage. The method provides a rapid means of controlling fed-batch biooxidation reactions which can employ in-line techniques and is broadly applicable for diverse oxidation reactions.

The invention relates to an insert brazed on a body of cutting tools (101), consisting of: a metal substrate (11), in the form of plates, having a surface for attachment to the tool body; a high-temperature, brazing, alloy layer (12); an intermediate layer; and a ceramic plate (14). The brazing alloy layer connects the metal substrate (11) of the ceramic plate (14) via the metal layer (13). A low-temperature brazing layer (1) connects the insert (1, 1′) to the body of the tool (101).

A fluid flow sensor for use in measuring flow parameters in gas and other fluid applications, including patient ventilators and the like. The sensor is characterized by a lower pressure drop at higher flow rates in order to minimize patient effort in breathing.