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1.发明申请NON-INTRUSIVE ERROR DETECTION TECHNIQUES FOR CONTROL AND SHUTDOWN ROD POSITION IN NUCLEAR REACTORS 审中-公开核反应堆控制和关闭位置的非侵入式错误检测技术公开(公告)号：US20160365161A1
公开(公告)日：2016-12-15
申请号：US15247169
申请日：2016-08-25
摘要： Non-intrusive error detection techniques for control and shutdown rod position in nuclear reactors, including methods of monitoring digital rod position indication (DRPI) signals of a DRPI system of a nuclear power plant. The methods include acquiring digital rod position signals at a point between a DRPI display cabinet and a DRPI data cabinet of the DRPI system, and processing the digital rod position signals to identify variations in a signal level and a signal timing of the digital rod position signals to determine rod position errors of the DRPI system.
摘要翻译： 用于控制和关闭核反应堆中的杆位置的非侵入式误差检测技术，包括监测核电站DRPI系统的数字杆位置指示（DRPI）信号的方法。 这些方法包括在DRPI显示柜和DRPI系统的DRPI数据柜之间的点处获取数字杆位置信号，以及处理数字杆位置信号，以识别数字杆位置信号的信号电平和信号定时的变化 以确定DRPI系统的杆位置误差。
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公开(公告)号：US07319939B2
公开(公告)日：2008-01-15
申请号：US11781350
申请日：2007-07-23
申请人： Hashem M. Hashemian
发明人： Hashem M. Hashemian
IPC分类号： G06F19/00
CPC分类号： G05B23/0283
摘要： A system and method for verifying the performance and health of wire systems and end devices, including instruments and processes. A computer runs software that collects data from sampled sensors, stores the data, screens the data for outliers, analyzes the data, performs in situ testing, and generates results of the analysis and testing. The system and method verifies not only the steady state performance of instruments, but also the dynamic performance of instruments and the transient behavior of the processes. In one embodiment, the system performs testing of the wiring system connecting the end devices located at the process. In another embodiment, the system also performs analysis of the amplitude probability density and a power spectral density determined from the sensor, or end device, data. In still another embodiment, the system performs a time domain reflectometry (TDR) analysis for a wiring system connecting an end device.
摘要翻译： 一种用于验证有线系统和终端设备（包括仪器和过程）的性能和健康状况的系统和方法。 计算机运行从采样传感器收集数据的软件，存储数据，筛选出异常值的数据，分析数据，执行原位测试，并生成分析和测试结果。 该系统和方法不仅验证了仪器的稳态性能，而且验证了仪器的动态性能和过程的瞬态特性。 在一个实施例中，系统执行连接位于该过程的终端设备的布线系统的测试。 在另一个实施例中，系统还执行振幅概率密度和从传感器或终端设备数据确定的功率谱密度的分析。 在另一个实施例中，系统对连接终端设备的布线系统执行时域反射测量（TDR）分析。
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3.发明授权Integrated system for verifying the performance and health of instruments and processes 有权用于验证仪器和过程的性能和健康的集成系统公开(公告)号：US06915237B2
公开(公告)日：2005-07-05
申请号：US10438356
申请日：2003-05-14
申请人： Hashem M. Hashemian
发明人： Hashem M. Hashemian
CPC分类号： G01D3/08
摘要： A system and method for verifying the performance and health of instruments and processes. A computer runs software that collects data from sampled sensors, stores the data, screens the data for outliers, analyzes the data, performs in situ testing, and generates results of the analysis and testing. The system and method verifies not only the steady state performance of instruments, but also the dynamic performance of instruments and the transient behavior of the processes.
摘要翻译： 一种用于验证仪器和过程的性能和健康的系统和方法。 计算机运行从采样传感器收集数据的软件，存储数据，筛选出异常值的数据，分析数据，执行原位测试，并生成分析和测试结果。 该系统和方法不仅验证了仪器的稳态性能，而且验证了仪器的动态性能和过程的瞬态特性。
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公开(公告)号：US09431137B2
公开(公告)日：2016-08-30
申请号：US13523277
申请日：2012-06-14
摘要： A diagnostic system to monitor digital rod position indication (DRPI) signals of a DRPI system of a nuclear power plant, including a digital diagnostic unit connected between a DRPI display cabinet and a DRPI data cabinet of the DRPI system to monitor digital rod position signals of the DRPI data cabinet. The digital rod position signals include digital rod address signals and digital rod position data signals such that the digital diagnostic unit detects signal level variation and signal timing variation of the digital rod address signals and the digital rod position data signals to determine rod position errors of the DRPI system.
摘要翻译： 一种诊断系统，用于监视核电站DRPI系统的数字杆位置指示（DRPI）信号，包括连接在DRPI显示柜和DRPI系统的DRPI数据柜之间的数字诊断单元，以监视数字杆位置信号 DRPI数据柜。 数字杆位置信号包括数字杆地址信号和数字杆位置数据信号，使得数字诊断单元检测数字杆地址信号和数字杆位置数据信号的信号电平变化和信号定时变化，以确定杆位位置误差 DRPI系统。
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5.发明授权High resolution digital rod position indication system for nuclear power plants 有权核电站高分辨率数字式杆位置指示系统公开(公告)号：US08903033B2
公开(公告)日：2014-12-02
申请号：US12351745
申请日：2009-01-09
申请人： Gregory M. Morton , Hashem M. Hashemian , Brent D. Shumaker , Danny D. Beverly , Casey D. Sexton
发明人： Gregory M. Morton , Hashem M. Hashemian , Brent D. Shumaker , Danny D. Beverly , Casey D. Sexton
IPC分类号： G21C17/00
CPC分类号： G21C17/00 , G21C7/08 , G21C17/12 , G21Y2002/204 , Y02E30/39
摘要： A high resolution digital rod position indication (high resolution DRPI) system having improved resolution. The high resolution DRPI system monitors the rod control cluster and provides an indication of the rod position with precision to a single step. In addition, the high resolution DRPI system is capable of producing a rod position output compatible with existing rod control systems. The improved resolution of the high resolution DRPI system allows the actual position of the control rods to be continuously monitored and eliminates the need for or reduces the frequency of offline re-initialization of the step counters.
摘要翻译： 高分辨率数字棒位置指示（高分辨率DRPI）系统具有改进的分辨率。 高分辨率DRPI系统监视杆控制群集，并以一步的精度提供杆位置的指示。 此外，高分辨率DRPI系统能够产生与现有的杆控制系统兼容的杆位置输出。 高分辨率DRPI系统的改进分辨率允许控制杆的实际位置被连续监视，并且消除了对步进计数器的离线重新初始化的需要或降低的频率。
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6.发明授权公开(公告)号：US07478010B2
公开(公告)日：2009-01-13
申请号：US11781351
申请日：2007-07-23
申请人： Hashem M. Hashemian
发明人： Hashem M. Hashemian
IPC分类号： G06F19/00
CPC分类号： G05B23/0283
摘要： A system and method for verifying the performance and health of wire systems and end devices, including instruments and processes. A computer runs software that collects data from sampled sensors, stores the data, screens the data for outliers, analyzes the data, performs in situ testing, and generates results of the analysis and testing. The system and method verifies not only the steady state performance of instruments, but also the dynamic performance of instruments and the transient behavior of the processes. In one embodiment, the system performs testing of the wiring system connecting the end devices located at the process. In another embodiment, the system also performs analysis of the amplitude probability density and a power spectral density determined from the sensor, or end device, data. In still another embodiment, the system performs a time domain reflectometry (TDR) analysis for a wiring system connecting an end device.
摘要翻译： 一种用于验证有线系统和终端设备（包括仪器和过程）的性能和健康状况的系统和方法。 计算机运行从采样传感器收集数据的软件，存储数据，筛选出异常值的数据，分析数据，执行原位测试，并生成分析和测试结果。 该系统和方法不仅验证了仪器的稳态性能，而且验证了仪器的动态性能和过程的瞬态特性。 在一个实施例中，系统执行连接位于该过程的终端设备的布线系统的测试。 在另一个实施例中，系统还执行振幅概率密度和从传感器或终端设备数据确定的功率谱密度的分析。 在另一个实施例中，系统对连接终端设备的布线系统执行时域反射测量（TDR）分析。
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公开(公告)号：US4295128A
公开(公告)日：1981-10-13
申请号：US23641
申请日：1979-03-26
IPC分类号： G01R19/175 , G08B27/00
CPC分类号： G01R19/175
摘要： Methods and apparatus for on-line detection and measurement of degradation or undesirable changes in the time constants of sensors used in monitoring a system are disclosed. Methods and apparatus of this invention are particularly suitable for use in complex and high-risk industrial processes or other operations where it is undesirable and expensive or dangerous to allow certain parameters of the operation to change above or beyond a predetermined amount. This invention includes a detector for determining when a signal from a sensor crosses a preselected signal level such as for example a zero level. The output of the detector or zero crossing detector is provided to a counter or other means which determines the rate of the zero crossing by counting the number of crossings per a specific time period provided by a timer. The determined rate of the zero crossing is then compared to a preselected acceptable rate to determine whether or not the sensor time constant has increased beyond the preselected allowable value. If the detected crossing rate is less than the acceptable value, (corresponding to a time constant above its acceptable value) an alarm will be sounded to alert the operator of the system of the degraded sensor response time.
摘要翻译： 公开了用于在线检测和测量用于监视系统的传感器的时间常数的降级或不期望的变化的方法和装置。 本发明的方法和装置特别适用于复杂和高风险的工业过程或其它操作，其中允许操作的某些参数变化超过或超过预定量是不期望的和昂贵的或危险的。 本发明包括一种检测器，用于确定来自传感器的信号何时与预选信号电平相交，例如零电平。 检测器或过零检测器的输出被提供给计数器或其他装置，其通过对由定时器提供的特定时间段的交叉数进行计数来确定过零点的速率。 然后将确定的过零点的速率与预选的可接受速率进行比较，以确定传感器时间常数是否增加超过预选的允许值。 如果检测到的交叉率小于可接受的值（对应于高于其可接受值的时间常数），则会发出警报，以向系统的操作人员通知降低的传感器响应时间。
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公开(公告)号：US20170160219A1
公开(公告)日：2017-06-08
申请号：US12351748
申请日：2009-01-09
申请人： Brent D. Shumaker , Hashem M. Hashemian , Gregory W. Morton , Danny D. Beverly , Casey D. Sexton
发明人： Brent D. Shumaker , Hashem M. Hashemian , Gregory W. Morton , Danny D. Beverly , Casey D. Sexton
CPC分类号： G21C17/00 , G21C7/08 , G21C17/12 , G21Y2002/204 , Y02E30/39
摘要： An automated system for on-line monitoring and coil diagnostics of rod position indicator (RPI) coils coil diagnostic, or RPI coil diagnostic system. The RPI coil diagnostic system performs coil diagnostics for a RPI system in a nuclear power plant. The RPI coil diagnostic system is in electrical communication with and monitors the outputs of the detector coils. The RPI coil diagnostic system measures characteristics of the detector coils that are indicative of the health of the detector coils and/or the connections between the detector coils and the RPI electronics.
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公开(公告)号：US08840301B2
公开(公告)日：2014-09-23
申请号：US13156053
申请日：2011-06-08
申请人： Hashem M. Hashemian
发明人： Hashem M. Hashemian
CPC分类号： G01K15/005 , G01K7/02 , G01K7/18 , G01K15/007
摘要： A diverse and redundant resistance temperature detector (“D&R RTD”) is provided. The D&R RTD is utilized in obtaining temperature readings in environments, such as fluids and gasses, by measuring electrical characteristics of the D&R RTD that are influenced by the temperature. Furthermore, the D&R RTD's are arranged such that a plurality of measurements can be obtained, which provides sufficient diversity and redundancy of the measurements for enhanced diagnostics to be performed, such as optimization for fast dynamic response, calibration stability, in-situ response time testability, and in-situ calibration testability.
摘要翻译： 提供了多种冗余的电阻温度检测器（“D＆R RTD”）。 通过测量受温度影响的D＆R RTD的电气特性，D＆R RTD用于获得诸如流体和气体等环境中的温度读数。 此外，D＆R RTD被布置成使得可以获得多个测量，其提供足够的分集和冗余以进行增强的诊断，例如用于快速动态响应的优化，校准稳定性，原位响应时间可测试性 ，和原位校准可测性。
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10.发明授权In-service calibration of temperature measurement devices using plant monitoring system data 有权使用工厂监控系统数据进行温度测量设备的在线校准公开(公告)号：US07739067B2
公开(公告)日：2010-06-15
申请号：US11834302
申请日：2007-08-06
IPC分类号： G01K15/00
CPC分类号： G07C3/08
摘要： System for automating the determination of cross calibration coefficients based on data stored by a plant computer and data storage unit or a plant monitoring system. The automated system includes a processor executing software for retrieving data, determining average temperatures, determining deviations, and determining new calibration curve coefficients for deviating instruments. In another embodiment, the processor executes software for loading the historical data, selecting data points, removing deviate data, analyzing the data, reporting the data, and for recalibrating instruments that were determined to be deviating.
摘要翻译： 基于由工厂计算机和数据存储单元或工厂监控系统存储的数据来自动确定交叉校准系数的系统。 自动化系统包括执行软件的处理器，用于检索数据，确定平均温度，确定偏差，以及确定用于偏离仪器的新的校准曲线系数。 在另一个实施例中，处理器执行用于加载历史数据，选择数据点，去除偏差数据，分析数据，报告数据以及重新校准被确定为偏离的工具的软件。
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