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1. 发明申请

US20070081583A1 Methods and apparatus for frequency rectification 有权
标题翻译：频率整流方法与装置
公开(公告)号：US20070081583A1
公开(公告)日：2007-04-12
申请号：US11247810
申请日：2005-10-10
申请人： Alexei Petchenev , Olga Malakhova , John Grant , Nathan Littrell , Charles Hatch
发明人： Alexei Petchenev , Olga Malakhova , John Grant , Nathan Littrell , Charles Hatch
IPC分类号： H04B17/00
CPC分类号： G01R31/343
摘要： A method of monitoring the condition of a machine is provided. The method includes receiving an input complex signal from the machine wherein the input complex signal has a plurality of signal components. The plurality of signal components includes at least one signal component containing a pre-determined frequency of interest and at least one signal component containing noise. The method further includes processing the input complex signal and generating an output complex signal having a plurality of signal components The plurality of signal components includes at least one signal component containing a pre-determined frequency of interest and at least one signal component containing noise. Processing the input complex signal includes executing a fixed-step integration and processing the output complex signal to assess whether a fault exists.
摘要翻译：提供了一种监视机器状态的方法。该方法包括从机器接收输入复信号，其中输入复信号具有多个信号分量。多个信号分量包括至少一个包含预定频率的信号分量和至少一个包含噪声的信号分量。该方法还包括处理输入复信号并产生具有多个信号分量的输出复信号。多个信号分量包括至少一个信号分量，其包含预定的感兴趣频率和至少一个包含噪声的信号分量。处理输入复信号包括执行固定步骤积分并处理输出复信号以评估是否存在故障。

2. 发明申请

US20050248354A1 Frequency rectification tool for shorter waveforms 失效
标题翻译：用于更短波形的频率整流工具
公开(公告)号：US20050248354A1
公开(公告)日：2005-11-10
申请号：US10838459
申请日：2004-05-04
申请人： Alexei Petchenev , Olga Malakhova , John Grant , Nathan Littrell
发明人： Alexei Petchenev , Olga Malakhova , John Grant , Nathan Littrell
IPC分类号： G01R19/00 , G01R29/26 , G01R31/34 , G01V3/00
CPC分类号： G01R31/343 , G01R19/0053
摘要： A method of detecting a signal (S) of interest contained within a waveform (F) comprised of a plurality of signals within a frequency spectrum, as well as random noise. After first detecting the waveform, a determination is made as to whether the duration (Td) of the waveform is sufficient for subsequent processing. If the duration is not sufficient, the waveform is concatenated with itself to produce a waveform of sufficient duration. The concatenated waveform is then processed and the results supplied as an input to an oscillator (24) operating at a nominal output frequency. The oscillator cancels the effects of noise in the waveform and the frequency of the oscillator shifts to a different frequency which is a function of the signal of interest. The shift in output frequency of the oscillator is detected and analyzed to obtain the signal of interest. The oscillator can be either a general purpose oscillator or a Van der Pol oscillator.
摘要翻译：一种检测包含在由频谱内的多个信号组成的波形（F）内的感兴趣信号（S）以及随机噪声的方法。在首先检测波形之后，确定波形的持续时间（Td）是否足以用于后续处理。如果持续时间不足，则波形与其自身连接以产生足够持续时间的波形。然后对级联波形进行处理，并将结果作为输入提供给以标称输出频率工作的振荡器（24）。振荡器抵消了波形中噪声的影响，并且振荡器的频率转移到与感兴趣的信号有关的不同频率。检测并分析振荡器输出频率的偏移以获得感兴趣的信号。振荡器可以是通用振荡器或Van der Pol振荡器。

3. 发明申请

US20060241910A1 Methods and systems for diagnosing machinery 失效
标题翻译：诊断机械的方法和系统
公开(公告)号：US20060241910A1
公开(公告)日：2006-10-26
申请号：US11111199
申请日：2005-04-21
申请人： Alexei Petchenev , Nathan Littrell , Olga Malakhova , John Grant
发明人： Alexei Petchenev , Nathan Littrell , Olga Malakhova , John Grant
IPC分类号： G06F15/00
CPC分类号： G05B23/0232 , G05B23/0283
摘要： A method of predicting the remaining operational life of a component including generating a plurality of component data utilizing a machinery monitoring system including a database having at least one rule set, the component data indicative of a least one operational parameter of the component, trending the component data utilizing the rule set, and extrapolating the trended data to facilitate predicting the remaining operational life of the component.
摘要翻译：一种预测部件的剩余使用寿命的方法，包括利用包括具有至少一个规则集的数据库的机械监控系统来生成多个部件数据，该部件数据指示部件的至少一个操作参数，利用规则集的数据，并推断趋势数据以便于预测组件的剩余使用寿命。

4. 发明申请

US20050231350A1 Method and system for generating automatic alarms based on trends detected in machine operation 有权
标题翻译：根据机器运行中检测到的趋势生成自动报警的方法和系统
公开(公告)号：US20050231350A1
公开(公告)日：2005-10-20
申请号：US10824485
申请日：2004-04-15
申请人： Nathan Littrell , John Grant
发明人： Nathan Littrell , John Grant
IPC分类号： G01H1/00 , G08B29/00
CPC分类号： G01H1/006
摘要： A method to detect a change in a condition of a system including: sensing the condition of the system and capturing data values indicative of the sensed condition; periodically determining a difference between a first data value and a second data value; determining a characteristic representative of a series of differences representative of a predetermined period; comparing the characteristic to at least one threshold level, and generating an alarm if the characteristic is beyond the threshold level.
摘要翻译：一种用于检测系统状况变化的方法，包括：感测系统的状况并捕获指示感测到的状况的数据值; 周期性地确定第一数据值和第二数据值之间的差; 确定代表预定周期的一系列差异的特征; 将特征与至少一个阈值水平进行比较，并且如果特征超过阈值水平则产生警报。

5. 发明申请

US20070126592A1 METHOD AND APPARATUS FOR MACHINE STATE QUATIFICATION IN MACHINERY MANAGEMENT SYSTEMS 有权
标题翻译：机械管理系统中机械状态评估的方法与装置
公开(公告)号：US20070126592A1
公开(公告)日：2007-06-07
申请号：US11164689
申请日：2005-12-01
申请人： Nathan Littrell
发明人： Nathan Littrell
IPC分类号： G08B21/00 , G05B9/02
CPC分类号： G05B23/0235
摘要： A method for determining a steady state operating condition of a machine includes determining whether a current machine speed of the machine is within a defined range of operation, determining whether a step change in output power of the machine has occurred, determining a first duration of time elapsed since the machine speed was last outside of the defined range of operation, and determining a second duration of time elapsed since a most recent detected step change in output power of the machine. The machine is deemed to be in a steady state condition whenever the current machine speed of the machine is within said defined range of operation, and the first and second durations of time exceed respective minimum values defined therefor.
摘要翻译：一种用于确定机器的稳态操作状态的方法包括：确定机器的当前机器速度是否在限定的操作范围内，确定机器的输出功率是否发生阶跃变化，确定第一持续时间从机器速度超出规定的操作范围以来经过的时间，以及确定自机器的输出功率的最近检测到的步长变化以来经过的第二持续时间。当机器的当前机器速度在所述限定的操作范围内时，机器被认为处于稳定状态，并且第一和第二持续时间超过为其定义的相应的最小值。

6. 发明申请

US20050246593A1 Methods and apparatus for providing alarm notification 有权
标题翻译：提供报警通知的方法和装置
公开(公告)号：US20050246593A1
公开(公告)日：2005-11-03
申请号：US10827201
申请日：2004-04-19
申请人： Nathan Littrell
发明人： Nathan Littrell
IPC分类号： G06F11/00
CPC分类号： G05B23/0235
摘要： A method for indicating an alarm condition in an industrial process includes measuring a parameter of the industrial process that varies over time and determining at least one parameter limit as a function of the parameter and also varying over time. The method further includes comparing the parameter to the parameter limit or limits and indicating an alarm condition when the parameter is outside of a bound set by the parameter limit or limits when the parameter is compared to the parameter limit or limits.
摘要翻译：一种用于在工业过程中指示报警状况的方法包括：测量随时间变化的工业过程的参数，并根据参数确定至少一个参数限制，并随时间变化。该方法还包括将参数与参数限制或限制进行比较，并且当参数与参数限制或限制进行比较时，当参数超出由参数限制或界限设置的限制值时，指示报警条件。

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