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公开(公告)号：US20230359893A1
公开(公告)日：2023-11-09
申请号：US18312193
申请日：2023-05-04
Applicant: Endress+Hauser Group Services AG
Inventor： Dimitri Vaissiere
Abstract: A method of filtering measured values comprises: based on recorded data including the measured values parametrizing a filter by: setting a filtering strength of the filter to an initial filtering strength, filtering the measured values and determining a fractal dimension of the filtered values, and iteratively repeating this process by: increasing the filtering strength, filtering the measured values and determining the fractal dimension of the filtered values until a decay of the fractal dimensions determined at the end of each iteration drops below a threshold. Next, the filter is put into operation based on a parametrization corresponding to the filtering strength employed in the last iteration and a filtering result of the measured values is determined and provided.
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公开(公告)号：US20220155252A1
公开(公告)日：2022-05-19
申请号：US17530049
申请日：2021-11-18
Applicant: Endress+Hauser Group Services AG
Inventor： Dimitri Vaissiere , Julia Mildner , André Lemke
IPC: G01N27/27 , G01N27/02 , G01N27/30 , G01N27/333
Abstract: A method of predictive monitoring of a variable of a medium located in a container of a facility comprises steps of continuously recording data comprising measured values, based on training data determining a classification method capable of identifying data sets that have each been measured during one of the specific operation phases, performing the classification method and based on the data sets identified by the classification method determining a time series of compliancy indicators indicative of a degree of compliancy of at least one property of the characteristic of the measured values to a corresponding reference property of the reference characteristic. Based on the time series at least once determining a time remaining until the degree of compliancy indicated by compliancy indicators will drop below a predetermined minimum degree of compliancy; and providing an output informing about the remaining time.
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公开(公告)号：US20220253646A1
公开(公告)日：2022-08-11
申请号：US17625924
申请日：2020-06-18
Applicant: Endress+Hauser Group Services AG
Inventor： Jenish Gheewala , Dimitri Vaissiere , Matthias Brenzinger , Dhiren Naidoo , Taylor McKertich , Nicolas Cadiz
Abstract: A method of determining an interface height in a container of a thickener includes measuring said interface height with a level measurement device during time periods, when conditions permit, measuring process variables related to the thickening process performed by the thickener and calculating and providing a calculated interface height, wherein a calculating unit is designed to learn said calculation based on said measured interface heights and said measured process variables.
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4.发明申请公开(公告)号：US20210190673A1
公开(公告)日：2021-06-24
申请号：US17126208
申请日：2020-12-18
Applicant: Endress+Hauser Group Services AG
Inventor： Dimitri Vaissiere , Dirk Dohse
Abstract: Disclosed is a method of monitoring a condition of objects in a piping system in which each object has a surface exposed to a product flowing through a pipe in the piping system. The method allows for the condition of each object to be monitored whilst the object remains in place. The method includes repeatedly measuring a resonance frequency of an oscillatory element of a vibratory device that is installed in the pipe and that exhibits a susceptibility to an impairment caused by accretion, abrasion, and/or corrosion corresponding to the respective susceptibilities of the objects. The resonance frequency of the vibratory device is reduced by accretion and increased by corrosion and by abrasion of its oscillatory element. The method further includes monitoring the condition of the objects based on the measured frequencies.
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5.发明授权公开(公告)号：US11656170B2
公开(公告)日：2023-05-23
申请号：US17126208
申请日：2020-12-18
Applicant: Endress+Hauser Group Services AG
Inventor： Dimitri Vaissiere , Dirk Dohse
Abstract: Disclosed is a method of monitoring a condition of objects in a piping system in which each object has a surface exposed to a product flowing through a pipe in the piping system. The method allows for the condition of each object to be monitored whilst the object remains in place. The method includes repeatedly measuring a resonance frequency of an oscillatory element of a vibratory device that is installed in the pipe and that exhibits a susceptibility to an impairment caused by accretion, abrasion, and/or corrosion corresponding to the respective susceptibilities of the objects. The resonance frequency of the vibratory device is reduced by accretion and increased by corrosion and by abrasion of its oscillatory element. The method further includes monitoring the condition of the objects based on the measured frequencies.
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Patent Agency Ranking
公开(公告)号：US20220390344A1
公开(公告)日：2022-12-08
申请号：US17805781
申请日：2022-06-07
Applicant: Endress+Hauser Group Services AG
Inventor： Dimitri Vaissiere , Alfred Rieder , Stefan Pflüger
Abstract: A method of monitoring a condition prevailing inside a piping system with respect to an impairment due to accretion, abrasion or corrosion caused by fluid(s) flowing through the piping system is disclosed, comprising the steps of: installing at least two measurement devices susceptible to an impairment and configured to measure variables indicative of the impairment; wherein the measured variables include at least two variables exhibiting a different dependency on the impairment; continuously recording data including time series of measured values of the variables measured; based on training data included in the data determining a dynamic reference behavior of the variables corresponding to time dependent distributions of values of the variables to be expected of the measured values when the measurement devices are unimpaired; repeatedly determining a deviation between a monitored behavior of the measured values of the variables and the reference behavior.
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公开(公告)号：US11435212B2
公开(公告)日：2022-09-06
申请号：US16875678
申请日：2020-05-15
Applicant: Endress+Hauser Group Services AG
Inventor： Dimitri Vaissiere
IPC: G01F1/66 , G01K13/00 , G01K15/00 , G01N27/416 , G01F25/10
Abstract: A method for monitoring a measurement variable and performing predictive monitoring of a compliancy of a characteristic of a field device to a requirement is described. The method includes a step of determining a deviation between a measured value of a monitored variable and a reference value of the monitored variable. The deviation is indicative of a degree of compliancy to the requirement. The method also includes a step of applying a filter to the deviations based on the deviations and the filtered deviations. The method further includes a step of determining a noise superimposed on the filtered deviations. At the end of a monitoring interval, a time remaining until the deviations will exceed the deviation range is determined using a Monte Carlo simulation.
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公开(公告)号：US11994488B2
公开(公告)日：2024-05-28
申请号：US17530049
申请日：2021-11-18
Applicant: Endress+Hauser Group Services AG
Inventor： Dimitri Vaissiere , Julia Mildner , André Lemke
IPC: G01N27/27 , G01N27/02 , G01N27/30 , G01N27/333 , G16C60/00
CPC classification number: G01N27/27 , G01N27/02 , G01N27/302 , G01N27/333 , G16C60/00
Abstract: A method of predictive monitoring of a variable of a medium located in a container of a facility comprises steps of continuously recording data comprising measured values, based on training data determining a classification method capable of identifying data sets that have each been measured during one of the specific operation phases, performing the classification method and based on the data sets identified by the classification method determining a time series of compliancy indicators indicative of a degree of compliancy of at least one property of the characteristic of the measured values to a corresponding reference property of the reference characteristic. Based on the time series at least once determining a time remaining until the degree of compliancy indicated by compliancy indicators will drop below a predetermined minimum degree of compliancy; and providing an output informing about the remaining time.
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公开(公告)号：US20240019268A1
公开(公告)日：2024-01-18
申请号：US18351885
申请日：2023-07-13
Applicant: Endress+Hauser Group Services AG
Inventor： Dimitri Vaissiere
IPC: G01D1/00
CPC classification number: G01D1/00
Abstract: A method of detecting outliers in measured values of a measurand is disclosed, comprising the steps of: based on training data determining a combined distribution of differences between individual measured values and the filtered value of the measured value preceding the respective individual measured value to be expected in the application where the method is applied based on difference distribution of first differences of the filtered values of the measured values and a noise distribution of noise included in the measured values. Next, new measured values are identified as outliers when a probability of occurrence of a difference between the respective new measured value and the filtered value of the preceding measured value according to the combined distribution is lower than a predetermined level of confidence.
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公开(公告)号：US20230038854A1
公开(公告)日：2023-02-09
申请号：US17757705
申请日：2020-12-01
Applicant: Endress+Hauser Group Services AG
Inventor： Dimitri Vaissiere , Pia Höfflin , Gary Dreyer
Abstract: The method includes a step of determining a degree of compliancy of the device. Based on said degree of compliancy determining a recommended interval for the next calibration of the respective device and determining a ratio of the recommended interval and the calibration time interval currently applied to this device, reviewing the calibration time intervals based on said ratios and a predetermined set of ratio ranges by: for each device performing a procedure predetermined for the ratio range comprising the ratio determined for the respective device and updating the calibration time interval applied to the respective device, and determining the time schedule providing scheduled calibrations times at which the devices shall be calibrated again based on the updated calibration time intervals determined for each of the devices and performing the next calibrations of the devices according to the scheduled calibration times.
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