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81. 发明授权

US11237042B2 Waveform data thinning 有权
公开(公告)号：US11237042B2
公开(公告)日：2022-02-01
申请号：US16247397
申请日：2019-01-14
申请人： Computational Systems, Inc.
发明人： Anthony J. Hayzen
IPC分类号： G06F17/40 , G01H1/00 , G06F17/14
摘要： A method for producing a thinned representation of vibration waveform data. The waveform vibration data is received and divided into sequential blocks. For each sequential block, each serially designated in turn as a current block, the following steps are performed. When the current block is also a first block, the current block is passed as a reference block. A representative value for the current block is computed and compared to the representative value for the reference block to determine a difference. The representative value for the current block is compared to a minimum representative value. The current block is transformed into a spectrum and compared to the spectrum for the reference block to determine a correlation value. When the representative value for the current block is above the minimum representative value, the current block is passed as the reference block whenever at least one of the following is true, (a) the first difference is greater than a given difference, (b) the correlation value is less than a given correlation value, and (c) a numerical count of blocks between the current block and a most recently passed reference block is greater than a given maximum.

82. 发明授权

US11143545B2 Thinning of scalar vibration data 有权
公开(公告)号：US11143545B2
公开(公告)日：2021-10-12
申请号：US16273684
申请日：2019-02-12
申请人： Computational Systems, Inc.
发明人： Anthony J. Hayzen , Christopher G. Hilemon
IPC分类号： G01H9/00 , G01H1/16 , H03M7/30
摘要： A process for thinning scalar machine vibration data can reduce the amount of data storage required to store the data by several orders of magnitude, without losing any important machine diagnostic vibration information. The process assumes that because each scalar vibration measurement value has its own range of values, there is a unique delta change in value that does not significantly impact machine diagnostic information provided by the data. Some embodiments provide a method to automatically evaluate the delta change in value. The process can be used to thin data that have already been stored in a database, and also to thin the data in real-time during data collection. Data storage structures for storing the thinned scalar values and processes for displaying a trend plot to indicate where the scalar data have been thinned are also described.

83. 发明申请

US20210231528A1 SYSTEM FOR SEPARATING PERIODIC FREQUENCY OF INTEREST PEAKS FROM NON-PERIODIC PEAKS IN MACHINE VIBRATION DATA 有权
公开(公告)号：US20210231528A1
公开(公告)日：2021-07-29
申请号：US17227271
申请日：2021-04-10
申请人： Computational Systems, Inc.
发明人： Stewart V. Bowers, III
IPC分类号： G01M13/028 , G01M13/021
摘要： A statistical method is used to separate periodic from non-periodic vibration peaks in machine vibration spectra. Generally, a machine vibration spectrum is not normally distributed because the amplitudes of periodic peaks are significantly large and random relative to the generally Gaussian noise. In a normally distributed signal, the statistical parameter Kurtosis has a value of 3. The method sequentially removes each largest amplitude peak from the peaks in a frequency region of interest in the spectrum until the Kurtosis has a value of three or less. The removed peaks, which are all considered to be periodic, are placed into a candidate peak list. As the process of building the candidate peak list proceeds, if the kurtosis of the remaining peaks in the frequency region of interest falls to three or less, the process stops and the candidate peak list is defined.

84. 发明申请

US20210165723A1 Graphical Indicator With History 有权
公开(公告)号：US20210165723A1
公开(公告)日：2021-06-03
申请号：US16701697
申请日：2019-12-03
申请人： Computational Systems, Inc.
发明人： Anthony J. Hayzen , Christopher G. Hilemon
IPC分类号： G06F11/34 , G06T11/20
摘要： A method of presenting data, by receiving data from a data source, and storing the data on a non-transient, computer-readable storage medium. A current key performance indicator is calculated from the data, and is added to a file of historical key performance indicators that is stored on the non-transient, computer-readable storage medium/The current key performance indicator is read from the non-transient, computer-readable storage medium, and presented in a first graphical image. The historical key performance indicators are read from the non-transient, computer-readable storage medium, and presented in a second graphical image. The presentation of the current key performance indicator is linked to the presentation of the historical key performance indicators in a composite interface element, such that when a historical position is selected in the second graphical image, the first graphical image depicts a key performance indicator that was current at that historical position.

85. 发明授权

US11009520B2 Determination of machine rotational speed based on vibration spectral plots 有权
公开(公告)号：US11009520B2
公开(公告)日：2021-05-18
申请号：US16269156
申请日：2019-02-06
申请人： Computational Systems, Inc.
发明人： Anthony J. Hayzen , Stewart V. Bowers, III
IPC分类号： G01P3/489 , G01H1/00 , G01P1/12
摘要： 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. The apparatus includes a processor that produces a spectral plot of the vibrational data, locates peaks in the spectral plot, and scans the spectral plot in predetermined rotational speed increments to provide candidate rotational speeds. For each candidate rotational speed, associated harmonics are 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 a sum of the gaps is recorded. The estimated rotational speed is the candidate rotational speed associated with a minimum sum of the gaps.

86. 发明申请

US20210124345A1 METHOD AND APPARATUS FOR MACHINE MONITORING WITH CONTINUOUS IMPROVEMENT OF A PREDICTIVE MAINTENANCE DATABASE 有权
公开(公告)号：US20210124345A1
公开(公告)日：2021-04-29
申请号：US16663716
申请日：2019-10-25
申请人： Computational Systems, Inc.
发明人： Anthony J. Hayzen , Christopher G. Hilemon
IPC分类号： G05B23/02 , G01P3/48
摘要： An apparatus continually monitors predictive maintenance information and analyzes incoming measurements resulting in recommendations for improving setup information, such as machine information and measurement configurations. Smart sensors generate sensor signals corresponding to the parameters of a machine and a transducer converts the sensor signals into digital sensor data, which is stored into memory. An analyzer determines current operating characteristics of each machine and runs an improvement cycle in which it calculates new setup information. For example, the analyzer may calculate a new alert limit, which is a new measurement configuration that may be saved in the database as a new stored measurement configuration replacing an old measurement configuration. The analyzer may also calculate new machine information. For example, the analyzer may identify features in a frequency spectrum that are characteristic of a particular geartrain that is different from the geartrain identity provided in the predictive maintenance database. The analyzer may automatically change the identity of the geartrain in the predictive maintenance database, or it may suggest the change to the operator. The analyzer also runs an analysis cycle during which current operating conditions of each machine are determined and signals are issued based on the current operating conditions.

87. 发明申请

US20200117170A1 Sensor Power Control and Signal Conditioning Circuit for Machinery Monitoring System 审中-公开
公开(公告)号：US20200117170A1
公开(公告)日：2020-04-16
申请号：US16713541
申请日：2019-12-13
申请人： Computational Systems, Inc.
发明人： John W. Willis , William E. Childress
IPC分类号： G05B19/4065 , G01M7/00 , H03K5/24 , H03K17/60
摘要： A sensor signal conditioning circuit of a machinery health monitoring module is disposed between a machine sensor and an analog-to-digital converter (ADC). The circuit includes a sensor interface connector, first and second operational amplifiers, a Nyquist filter, and first and second gain flattening feedback networks. The interface connector can connect to multiple types of sensors for monitoring various machine characteristics. The output of the first operational amplifier is coupled to the positive input of the ADC, and the output of the second operational amplifier is coupled to the negative input of the ADC. The first operational amplifier provides a high impedance differential interface to the analog sensor signal and a low impedance interface to the positive input of the ADC. The second operational amplifier provides an inverted copy of a signal at the positive input of the ADC and a low impedance interface to the negative input of the ADC.

88. 发明授权

US10516739B2 Method for communicating between asset health monitoring devices 有权
公开(公告)号：US10516739B2
公开(公告)日：2019-12-24
申请号：US16208752
申请日：2018-12-04
申请人： Computational Systems, Inc.
发明人： Christopher G. Hilemon , Anthony J. Hayzen , William L. Sells , Trevor D. Schleiss , Manikandan Janardhanan
IPC分类号： H04L29/08 , G06Q10/00 , H04L29/06
摘要： An extensible computing system integrates asset health data and user control of devices made by different manufacturers, using a common computer platform application structure and a common platform services structure. A services bus communicates device signals in a standardized format from the common platform services structure to a proprietary extension services structure, which converts the device communication signals from the standardized format to a proprietary communication format. A data highway bus communicates asset health and reliability data in a standardized data format from the proprietary extension services structure to the common extension services structure. The proprietary services structure converts asset health data from a proprietary data format as received from the proprietary device into the standardized data format. An input communicates data in the proprietary data format from the proprietary device to the computer, and an output sends communication signals in the proprietary communication format to the proprietary device.

89. 发明授权

US10508974B2 Storing analytical machine data based on change in scalar machine data indicating alert condition 有权
公开(公告)号：US10508974B2
公开(公告)日：2019-12-17
申请号：US15011912
申请日：2016-02-01
申请人： Computational Systems, Inc.
发明人： Bradford J. Duncan , Robert D. Skeirik , Stewart V. Bowers, III
IPC分类号： G01M99/00 , G08B21/18 , G01H1/00
摘要： A “store on alert” vibration data acquisition mechanism uses scalar data produced by a vibration monitoring device as a predicate to capturing and storing analytical vibration data in the vibration monitoring device. The scalar data may consist of scalar process variables generated in the vibration monitoring device that are acquired at a fixed interval, such as PeakVue and Overall Vibration. At each interval, these scalar data values are compared to machine performance threshold levels, such as ADVISE, MAINT and FAIL, to determine whether analytical vibration data is to be stored separately inside the vibration monitoring device. Since the analytical vibration data is captured based on a predicate inside the vibration monitoring device (i.e., comparison of the scalar value to the thresholds), the analytical vibration data includes more relevant diagnostic information about a specific machine performance event.

90. 发明申请

US20190318023A1 Efficient Data Processing 审中-公开
公开(公告)号：US20190318023A1
公开(公告)日：2019-10-17
申请号：US15953815
申请日：2018-04-16
申请人： Computational Systems, Inc.
发明人： Anthony J. Hayzen
IPC分类号： G06F17/30 , G06F7/08
摘要： A method for improving the operation of a computer by transferring data from an SQL database in a storage unit to a memory by copying the data from the SQL database to a binary file in the storage unit, where the binary file having a data structure and a data type. A data file having the data structure and the data type is configured within the memory, and the binary file in the storage unit is copied to the data file in the memory with a single read/write operation.

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