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1. 发明授权

US5739698A Machine fault detection using slot pass frequency flux measurements 失效
标题翻译：使用槽通过频率通量测量的机器故障检测
公开(公告)号：US5739698A
公开(公告)日：1998-04-14
申请号：US667141
申请日：1996-06-20
申请人： Stewart V. Bowers , Kenneth R. Piety
发明人： Stewart V. Bowers , Kenneth R. Piety
IPC分类号： G01R13/02 , G01R23/20 , G01R31/34 , G01R31/02
CPC分类号： G01R31/343 , G01R23/20 , G01R13/02
摘要： A method for nonintrusive detection of anomalies in electric machines. A flux coil is positioned external to the motor to obtain magnetic leakage flux measurements, which are transformed to the frequency domain to obtain a flux spectrum. Asymmetry-producing faults, such as turn-to-turn stator winding shorts, produce changes in the amplitudes of individual frequencies and groups of frequencies within a defined slot pass family of frequencies of the flux spectrum. The measured amplitudes of the slot pass family of frequencies are compared to reference and trend data. Significant changes in the slot pass frequency amplitudes indicate the presence of a machine fault or other anomalous condition. Significant changes are determined by comparing individual amplitudes and groups of amplitudes of the slot pass family of frequencies to an absolute or delta threshold value. Alternatively, measured amplitudes of the slot pass frequencies can be statistically compared to trend data previously acquired for the motor to determine when a significant change in the slot pass amplitudes has occurred.
摘要翻译：一种非侵入式检测电机异常的方法。磁通线圈位于电机的外部，以获得磁泄漏磁通量测量值，并将其转换到频域以获得通量谱。产生不对称的故障，例如匝间定子绕组短路，会产生频率范围内各个频率和频率组幅度的变化。将测量的频带频率族的幅度与参考和趋势数据进行比较。缝隙通过频率振幅的显着变化表明存在机器故障或其他异常情况。通过将时隙通频谱系列的幅度和绝对值或增量阈值的幅度组合来确定显着变化。或者，可以将槽通过频率的测量幅度与先前为电动机获取的趋势数据进行统计学比较，以确定何时发生槽通过振幅的显着变化。

2. 发明申请

US20060181427A1 Machine condition indication system 审中-公开
标题翻译：机器状态指示系统
公开(公告)号：US20060181427A1
公开(公告)日：2006-08-17
申请号：US11047268
申请日：2005-01-31
申请人： Kai Bouse , Stewart V. Bowers , Jim Robinson , Richard Piety , Todd Reeves
发明人： Kai Bouse , Stewart V. Bowers , Jim Robinson , Richard Piety , Todd Reeves
IPC分类号： G08B21/00
CPC分类号： G05B23/0232 , G05B19/4065 , G05B2219/31467 , G05B2219/32297
摘要： A machine condition monitor resides in close proximity to a machine train, such as an AC inductive electric motor coupled to a driven unit such as a centrifugal pump or fan. A plurality of sensing devices are connected to the machine and the machine condition monitor. Machine state and condition parameters sensed by these devices are utilized by the machine condition monitor to derive machine condition values for each component and for the machine train as a whole. These derived condition values are transmitted via an industrial communications network to a control center where they can be trended and monitored. With no particular knowledge of machine analysis techniques or severity of specific machine faults, and no special training, Operators and Production Planners can use the condition values to plan production schedules, adjust process parameters, and request appropriate maintenance action.
摘要翻译：机器状态监视器靠近机器列车，例如耦合到诸如离心泵或风扇的从动单元的AC感应电动机。多个感测装置连接到机器和机器状态监视器。由机器状态监视器利用这些装置感测到的机器状态和状态参数来导出每个部件和整个机器列车的机器状态值。这些派生条件值通过工业通信网络传输到控制中心，在这些控制中心可以对其进行趋势和监测。没有特别了解机器分析技术或特定机器故障的严重性，无需特殊培训，操作员和生产计划人员可以使用条件值来计划生产计划，调整过程参数，并请求适当的维护操作。

3. 发明授权

US07937373B2 Method and apparatus for automated storage of event-substantiating data 有权
标题翻译：用于自动存储事件确认数据的方法和装置
公开(公告)号：US07937373B2
公开(公告)日：2011-05-03
申请号：US12205326
申请日：2008-09-05
申请人： Kai T. Bouse , Christopher G. Hilemon , Stewart V. Bowers , Richard Piety
发明人： Kai T. Bouse , Christopher G. Hilemon , Stewart V. Bowers , Richard Piety
IPC分类号： G06F17/30 , G06F7/00
CPC分类号： G05B23/0264
摘要： A method for detecting an event and/or behavior of interest based on monitoring data and selectively storing portions of the monitoring data associated with the event and/or behavior of interest. Preferably, the method includes defining a hierarchy of event and/or behavior types so that the storing of a first behavior/event type is preferred over a second behavior/event type, especially when storing capacity is scarce. A data management apparatus including a logic device and a long-term storage memory apparatus, the logic device for detecting an event and/or behavior of interest based on monitoring data and selectively storing portions of the monitoring data associated with the event and/or behavior of interest on the long-term memory storage apparatus.
摘要翻译：一种用于基于监视数据检测感兴趣的事件和/或行为的方法，并且选择性地存储与感兴趣的事件和/或行为相关联的监视数据的部分。优选地，该方法包括定义事件和/或行为类型的层次结构，使得第一行为/事件类型的存储优于第二行为/事件类型，特别是当存储容量很少时。一种数据管理装置，包括逻辑装置和长期存储装置，所述逻辑装置用于基于监视数据检测感兴趣的事件和/或行为，并选择性地存储与事件和/或行为相关联的监视数据的部分对长期记忆存储装置感兴趣。

4. 发明申请

US20090070387A1 METHOD AND APPARATUS FOR AUTOMATED STORAGE OF EVENT-SUBSTANTIATING DATA 有权
标题翻译：用于自动存储事件数据的方法和装置
公开(公告)号：US20090070387A1
公开(公告)日：2009-03-12
申请号：US12205326
申请日：2008-09-05
申请人： Kai T. Bouse , Christopher G. Hilemon , Stewart V. Bowers , Richard Piety
发明人： Kai T. Bouse , Christopher G. Hilemon , Stewart V. Bowers , Richard Piety
IPC分类号： G06F17/30
CPC分类号： G05B23/0264
摘要： A method for detecting an event and/or behavior of interest based on monitoring data and selectively storing portions of the monitoring data associated with the event and/or behavior of interest. Preferably, the method includes defining a hierarchy of event and/or behavior types so that the storing of a first behavior/event type is preferred over a second behavior/event type, especially when storing capacity is scarce. A data management apparatus including a logic device and a long-term storage memory apparatus, the logic device for detecting an event and/or behavior of interest based on monitoring data and selectively storing portions of the monitoring data associated with the event and/or behavior of interest on the long-term memory storage apparatus.
摘要翻译：一种用于基于监视数据检测感兴趣的事件和/或行为的方法，并且选择性地存储与感兴趣的事件和/或行为相关联的监视数据的部分。优选地，该方法包括定义事件和/或行为类型的层次结构，使得第一行为/事件类型的存储优于第二行为/事件类型，特别是当存储容量很少时。一种数据管理装置，包括逻辑装置和长期存储装置，所述逻辑装置用于基于监视数据检测感兴趣的事件和/或行为，并选择性地存储与事件和/或行为相关联的监视数据的部分对长期记忆存储装置感兴趣。

5. 发明授权

US06529135B1 Integrated electric motor monitor 有权
标题翻译：集成电动机监视器
公开(公告)号：US06529135B1
公开(公告)日：2003-03-04
申请号：US09415824
申请日：1999-10-12
申请人： Stewart V. Bowers , James R. Stevenson , William E. Childress
发明人： Stewart V. Bowers , James R. Stevenson , William E. Childress
IPC分类号： G08B2100
CPC分类号： H02P23/0077 , G01R31/343
摘要： A method monitors an operational condition of an electric motor, and stores in a memory device general trend, prognostic, diagnostic, and hazardous event information indicative of the motor's operational condition. The method includes the steps of sensing characteristics indicative of the operational condition of the electric motor, such as vibration, temperature, magnetic flux, and the voltages applied to the motor's windings, and generating sensor signals related to the sensed characteristics. Upon the occurrence of a first circumstance, such when measurements of the motor's speed, winding temperature, and voltage, indicate that the motor is operating within its normal load profile, prognostic information is extracted from the sensor signals. The prognostic information provides a profile of the motor's operational condition over time without the influences of fluctuating loads, temperature, and voltage. Upon the occurrence of a second circumstance, such as when the motor's load factor is within a load factor range that is most common for the motor, diagnostic information is extracted from the sensor signals. The diagnostic information indicates the motor's operational condition when it is operating within its most common load zone. Upon occurrence of a third circumstance, such as an indication that the motor is operating abnormally, hazardous event information is extracted from the sensor signals and stored. The hazardous event information indicates the motor's condition at the time that a hazardous event, or fault, occurred. The general trend information is measured and stored at regular intervals to determine short- and long-term operational trends over time.
摘要翻译：一种方法监视电动机的操作状态，并存储在指示电动机的操作状态的存储装置总体趋势，预测，诊断和危险事件信息中。该方法包括以下步骤：检测指示电动机的操作状态的特性，例如振动，温度，磁通量，以及施加到电动机绕组的电压，以及产生与感测特性相关的传感器信号。当发生第一种情况时，例如当电动机速度，绕组温度和电压的测量指示电动机正在其正常负载曲线中运行时，从传感器信号中提取预测信息。预测信息提供电机运行状态随时间的变化，而不受波动负载，温度和电压的影响。在发生第二种情况时，例如当电动机的负载因子在电动机最常见的负载因子范围内时，从传感器信号中提取诊断信息。诊断信息表示电机在最常见的负载区域内运行时的运行状态。在发生诸如电动机异常运行的指示的第三种情况下，从传感器信号中提取危险事件信息并存储。危险事件信息表示发生危险事故或故障时的电机状况。总体趋势信息按照定期的方式进行测量和存储，以确定短期和长期的运营趋势。

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